/* POWER/PowerPC XCOFF linker support.
- Copyright 1995, 1996, 1997, 1998, 1999, 2000
- Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "bfd.h"
#include "sysdep.h"
/* This file holds the XCOFF linker code. */
-#define STRING_SIZE_SIZE (4)
+#undef STRING_SIZE_SIZE
+#define STRING_SIZE_SIZE 4
/* We reuse the SEC_ROM flag as a mark flag for garbage collection.
This flag will only be used on input sections. */
/* The list of import files. */
-struct xcoff_import_file {
+struct xcoff_import_file
+{
/* The next entry in the list. */
struct xcoff_import_file *next;
/* The path. */
/* Information we keep for each section in the output file during the
final link phase. */
-struct xcoff_link_section_info {
+struct xcoff_link_section_info
+{
/* The relocs to be output. */
struct internal_reloc *relocs;
/* For each reloc against a global symbol whose index was not known
index of the TOC symbol is not known when the reloc was handled,
an entry is added to this linked list. This is not an array,
like rel_hashes, because this case is quite uncommon. */
- struct xcoff_toc_rel_hash {
+ struct xcoff_toc_rel_hash
+ {
struct xcoff_toc_rel_hash *next;
struct xcoff_link_hash_entry *h;
struct internal_reloc *rel;
/* Information that we pass around while doing the final link step. */
-struct xcoff_final_link_info {
+struct xcoff_final_link_info
+{
/* General link information. */
struct bfd_link_info *info;
/* Output BFD. */
bfd_byte *external_relocs;
};
-static struct bfd_hash_entry *xcoff_link_hash_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static boolean xcoff_get_section_contents PARAMS ((bfd *, asection *));
-static struct internal_reloc *xcoff_read_internal_relocs
- PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
- struct internal_reloc *));
-static boolean xcoff_link_add_object_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean xcoff_link_check_archive_element
- PARAMS ((bfd *, struct bfd_link_info *, boolean *));
-static boolean xcoff_link_check_ar_symbols
- PARAMS ((bfd *, struct bfd_link_info *, boolean *));
-static boolean xcoff_link_check_dynamic_ar_symbols
- PARAMS ((bfd *, struct bfd_link_info *, boolean *));
-static bfd_size_type xcoff_find_reloc
- PARAMS ((struct internal_reloc *, bfd_size_type, bfd_vma));
-static boolean xcoff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *));
-static boolean xcoff_link_add_dynamic_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean xcoff_mark_symbol
- PARAMS ((struct bfd_link_info *, struct xcoff_link_hash_entry *));
-static boolean xcoff_mark PARAMS ((struct bfd_link_info *, asection *));
-static void xcoff_sweep PARAMS ((struct bfd_link_info *));
-static boolean xcoff_build_ldsyms
- PARAMS ((struct xcoff_link_hash_entry *, PTR));
-static boolean xcoff_link_input_bfd
- PARAMS ((struct xcoff_final_link_info *, bfd *));
-static boolean xcoff_write_global_symbol
- PARAMS ((struct xcoff_link_hash_entry *, PTR));
-static boolean xcoff_reloc_link_order
- PARAMS ((bfd *, struct xcoff_final_link_info *, asection *,
- struct bfd_link_order *));
-static int xcoff_sort_relocs PARAMS ((const PTR, const PTR));
+static bfd_boolean xcoff_mark (struct bfd_link_info *, asection *);
+
\f
/* Routines to read XCOFF dynamic information. This don't really
/* Read the contents of a section. */
-static boolean
-xcoff_get_section_contents (abfd, sec)
- bfd *abfd;
- asection *sec;
+static bfd_boolean
+xcoff_get_section_contents (bfd *abfd, asection *sec)
{
-
if (coff_section_data (abfd, sec) == NULL)
{
- sec->used_by_bfd = bfd_zalloc (abfd,
- sizeof (struct coff_section_tdata));
+ bfd_size_type amt = sizeof (struct coff_section_tdata);
+
+ sec->used_by_bfd = bfd_zalloc (abfd, amt);
if (sec->used_by_bfd == NULL)
- return false;
+ return FALSE;
}
if (coff_section_data (abfd, sec)->contents == NULL)
{
- coff_section_data (abfd, sec)->contents =
- (bfd_byte *) bfd_malloc (sec->_raw_size);
- if (coff_section_data (abfd, sec)->contents == NULL)
- return false;
-
- if (! bfd_get_section_contents (abfd, sec,
- coff_section_data (abfd, sec)->contents,
- (file_ptr) 0, sec->_raw_size))
- return false;
+ bfd_byte *contents;
+
+ if (! bfd_malloc_and_get_section (abfd, sec, &contents))
+ {
+ if (contents != NULL)
+ free (contents);
+ return FALSE;
+ }
+ coff_section_data (abfd, sec)->contents = contents;
}
- return true;
+ return TRUE;
}
/* Get the size required to hold the dynamic symbols. */
long
-_bfd_xcoff_get_dynamic_symtab_upper_bound (abfd)
- bfd *abfd;
+_bfd_xcoff_get_dynamic_symtab_upper_bound (bfd *abfd)
{
asection *lsec;
bfd_byte *contents;
return -1;
contents = coff_section_data (abfd, lsec)->contents;
- bfd_xcoff_swap_ldhdr_in (abfd, (PTR) contents, &ldhdr);
+ bfd_xcoff_swap_ldhdr_in (abfd, (void *) contents, &ldhdr);
return (ldhdr.l_nsyms + 1) * sizeof (asymbol *);
}
/* Get the dynamic symbols. */
long
-_bfd_xcoff_canonicalize_dynamic_symtab (abfd, psyms)
- bfd *abfd;
- asymbol **psyms;
+_bfd_xcoff_canonicalize_dynamic_symtab (bfd *abfd, asymbol **psyms)
{
asection *lsec;
bfd_byte *contents;
return -1;
contents = coff_section_data (abfd, lsec)->contents;
- coff_section_data (abfd, lsec)->keep_contents = true;
+ coff_section_data (abfd, lsec)->keep_contents = TRUE;
bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
strings = (char *) contents + ldhdr.l_stoff;
- symbuf = ((coff_symbol_type *)
- bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (coff_symbol_type)));
+ symbuf = bfd_zalloc (abfd, ldhdr.l_nsyms * sizeof (* symbuf));
if (symbuf == NULL)
return -1;
{
char *c;
- c = bfd_alloc (abfd, SYMNMLEN + 1);
+ c = bfd_alloc (abfd, (bfd_size_type) SYMNMLEN + 1);
if (c == NULL)
return -1;
memcpy (c, ldsym._l._l_name, SYMNMLEN);
symbuf->symbol.flags |= BSF_GLOBAL;
/* FIXME: We have no way to record the other information stored
- with the loader symbol. */
-
+ with the loader symbol. */
*psyms = (asymbol *) symbuf;
}
/* Get the size required to hold the dynamic relocs. */
long
-_bfd_xcoff_get_dynamic_reloc_upper_bound (abfd)
- bfd *abfd;
+_bfd_xcoff_get_dynamic_reloc_upper_bound (bfd *abfd)
{
asection *lsec;
bfd_byte *contents;
/* Get the dynamic relocs. */
long
-_bfd_xcoff_canonicalize_dynamic_reloc (abfd, prelocs, syms)
- bfd *abfd;
- arelent **prelocs;
- asymbol **syms;
+_bfd_xcoff_canonicalize_dynamic_reloc (bfd *abfd,
+ arelent **prelocs,
+ asymbol **syms)
{
asection *lsec;
bfd_byte *contents;
bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
- relbuf = (arelent *) bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent));
+ relbuf = bfd_alloc (abfd, ldhdr.l_nreloc * sizeof (arelent));
if (relbuf == NULL)
return -1;
elrel = contents + bfd_xcoff_loader_reloc_offset(abfd, &ldhdr);
elrelend = elrel + ldhdr.l_nreloc * bfd_xcoff_ldrelsz(abfd);
- for (; elrel < elrelend; elrel += bfd_xcoff_ldrelsz(abfd), relbuf++,
- prelocs++)
+ for (; elrel < elrelend; elrel += bfd_xcoff_ldrelsz(abfd), relbuf++,
+ prelocs++)
{
struct internal_ldrel ldrel;
relbuf->addend = 0;
/* Most dynamic relocs have the same type. FIXME: This is only
- correct if ldrel.l_rtype == 0. In other cases, we should use
- a different howto. */
+ correct if ldrel.l_rtype == 0. In other cases, we should use
+ a different howto. */
relbuf->howto = bfd_xcoff_dynamic_reloc_howto(abfd);
/* FIXME: We have no way to record the l_rsecnm field. */
/* Routine to create an entry in an XCOFF link hash table. */
static struct bfd_hash_entry *
-xcoff_link_hash_newfunc (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+xcoff_link_hash_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
{
struct xcoff_link_hash_entry *ret = (struct xcoff_link_hash_entry *) entry;
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == (struct xcoff_link_hash_entry *) NULL)
- ret = ((struct xcoff_link_hash_entry *)
- bfd_hash_allocate (table, sizeof (struct xcoff_link_hash_entry)));
- if (ret == (struct xcoff_link_hash_entry *) NULL)
- return (struct bfd_hash_entry *) ret;
+ if (ret == NULL)
+ ret = bfd_hash_allocate (table, sizeof (* ret));
+ if (ret == NULL)
+ return NULL;
/* Call the allocation method of the superclass. */
ret = ((struct xcoff_link_hash_entry *)
/* Create a XCOFF link hash table. */
struct bfd_link_hash_table *
-_bfd_xcoff_bfd_link_hash_table_create (abfd)
- bfd *abfd;
+_bfd_xcoff_bfd_link_hash_table_create (bfd *abfd)
{
struct xcoff_link_hash_table *ret;
+ bfd_size_type amt = sizeof (* ret);
- ret = ((struct xcoff_link_hash_table *)
- bfd_alloc (abfd, sizeof (struct xcoff_link_hash_table)));
- if (ret == (struct xcoff_link_hash_table *) NULL)
- return (struct bfd_link_hash_table *) NULL;
- if (! _bfd_link_hash_table_init (&ret->root, abfd, xcoff_link_hash_newfunc))
+ ret = bfd_malloc (amt);
+ if (ret == NULL)
+ return NULL;
+ if (!_bfd_link_hash_table_init (&ret->root, abfd, xcoff_link_hash_newfunc,
+ sizeof (struct xcoff_link_hash_entry)))
{
- bfd_release (abfd, ret);
- return (struct bfd_link_hash_table *) NULL;
+ free (ret);
+ return NULL;
}
ret->debug_strtab = _bfd_xcoff_stringtab_init ();
ret->descriptor_section = NULL;
ret->imports = NULL;
ret->file_align = 0;
- ret->textro = false;
- ret->gc = false;
+ ret->textro = FALSE;
+ ret->gc = FALSE;
memset (ret->special_sections, 0, sizeof ret->special_sections);
/* The linker will always generate a full a.out header. We need to
record that fact now, before the sizeof_headers routine could be
called. */
- xcoff_data (abfd)->full_aouthdr = true;
+ xcoff_data (abfd)->full_aouthdr = TRUE;
return &ret->root;
}
+/* Free a XCOFF link hash table. */
+
+void
+_bfd_xcoff_bfd_link_hash_table_free (struct bfd_link_hash_table *hash)
+{
+ struct xcoff_link_hash_table *ret = (struct xcoff_link_hash_table *) hash;
+
+ _bfd_stringtab_free (ret->debug_strtab);
+ bfd_hash_table_free (&ret->root.table);
+ free (ret);
+}
\f
/* Read internal relocs for an XCOFF csect. This is a wrapper around
_bfd_coff_read_internal_relocs which tries to take advantage of any
relocs which may have been cached for the enclosing section. */
static struct internal_reloc *
-xcoff_read_internal_relocs (abfd, sec, cache, external_relocs,
- require_internal, internal_relocs)
- bfd *abfd;
- asection *sec;
- boolean cache;
- bfd_byte *external_relocs;
- boolean require_internal;
- struct internal_reloc *internal_relocs;
+xcoff_read_internal_relocs (bfd *abfd,
+ asection *sec,
+ bfd_boolean cache,
+ bfd_byte *external_relocs,
+ bfd_boolean require_internal,
+ struct internal_reloc *internal_relocs)
{
-
if (coff_section_data (abfd, sec) != NULL
&& coff_section_data (abfd, sec)->relocs == NULL
&& xcoff_section_data (abfd, sec) != NULL)
&& cache
&& enclosing->reloc_count > 0)
{
- if (_bfd_coff_read_internal_relocs (abfd, enclosing, true,
- external_relocs, false,
- (struct internal_reloc *) NULL)
+ if (_bfd_coff_read_internal_relocs (abfd, enclosing, TRUE,
+ external_relocs, FALSE, NULL)
== NULL)
return NULL;
}
require_internal, internal_relocs);
}
\f
-/* Given an XCOFF BFD, add symbols to the global hash table as
- appropriate. */
-
-boolean
-_bfd_xcoff_bfd_link_add_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
-
- switch (bfd_get_format (abfd))
- {
- case bfd_object:
- return xcoff_link_add_object_symbols (abfd, info);
-
- case bfd_archive:
- /* If the archive has a map, do the usual search. We then need
- to check the archive for stripped dynamic objects, because
- they will not appear in the archive map even though they
- should, perhaps, be included. If the archive has no map, we
- just consider each object file in turn, since that apparently
- is what the AIX native linker does. */
- if (bfd_has_map (abfd))
- {
- if (! (_bfd_generic_link_add_archive_symbols
- (abfd, info, xcoff_link_check_archive_element)))
- return false;
- }
-
- {
- bfd *member;
-
- member = bfd_openr_next_archived_file (abfd, (bfd *) NULL);
- while (member != NULL)
- {
- if (bfd_check_format (member, bfd_object)
- && (! bfd_has_map (abfd)
- || ((member->flags & DYNAMIC) != 0
- && (member->flags & HAS_SYMS) == 0)))
- {
- boolean needed;
-
- if (! xcoff_link_check_archive_element (member, info, &needed))
- return false;
- if (needed)
- member->archive_pass = -1;
- }
- member = bfd_openr_next_archived_file (abfd, member);
- }
- }
-
- return true;
-
- default:
- bfd_set_error (bfd_error_wrong_format);
- return false;
- }
-}
-
-/* Add symbols from an XCOFF object file. */
-
-static boolean
-xcoff_link_add_object_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
-
- if (! _bfd_coff_get_external_symbols (abfd))
- return false;
- if (! xcoff_link_add_symbols (abfd, info))
- return false;
- if (! info->keep_memory)
- {
- if (! _bfd_coff_free_symbols (abfd))
- return false;
- }
- return true;
-}
-
-/* Check a single archive element to see if we need to include it in
- the link. *PNEEDED is set according to whether this element is
- needed in the link or not. This is called via
- _bfd_generic_link_add_archive_symbols. */
-
-static boolean
-xcoff_link_check_archive_element (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- boolean *pneeded;
-{
-
- if (! _bfd_coff_get_external_symbols (abfd))
- return false;
-
- if (! xcoff_link_check_ar_symbols (abfd, info, pneeded))
- return false;
-
- if (*pneeded)
- {
- if (! xcoff_link_add_symbols (abfd, info))
- return false;
- }
-
- if (! info->keep_memory || ! *pneeded)
- {
- if (! _bfd_coff_free_symbols (abfd))
- return false;
- }
-
- return true;
-}
-
-/* Look through the symbols to see if this object file should be
- included in the link. */
-
-static boolean
-xcoff_link_check_ar_symbols (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- boolean *pneeded;
-{
- bfd_size_type symesz;
- bfd_byte *esym;
- bfd_byte *esym_end;
-
- *pneeded = false;
-
- if ((abfd->flags & DYNAMIC) != 0
- && ! info->static_link
- && info->hash->creator == abfd->xvec)
- return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded);
-
- symesz = bfd_coff_symesz (abfd);
- esym = (bfd_byte *) obj_coff_external_syms (abfd);
- esym_end = esym + obj_raw_syment_count (abfd) * symesz;
- while (esym < esym_end)
- {
- struct internal_syment sym;
-
- bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
-
- if (sym.n_sclass == C_EXT && sym.n_scnum != N_UNDEF)
- {
- const char *name;
- char buf[SYMNMLEN + 1];
- struct bfd_link_hash_entry *h;
-
- /* This symbol is externally visible, and is defined by this
- object file. */
-
- name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
-
- if (name == NULL)
- return false;
- h = bfd_link_hash_lookup (info->hash, name, false, false, true);
-
- /* We are only interested in symbols that are currently
- undefined. If a symbol is currently known to be common,
- XCOFF linkers do not bring in an object file which
- defines it. We also don't bring in symbols to satisfy
- undefined references in shared objects. */
- if (h != (struct bfd_link_hash_entry *) NULL
- && h->type == bfd_link_hash_undefined
- && (info->hash->creator != abfd->xvec
- || (((struct xcoff_link_hash_entry *) h)->flags
- & XCOFF_DEF_DYNAMIC) == 0))
- {
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
- return false;
- *pneeded = true;
- return true;
- }
- }
-
- esym += (sym.n_numaux + 1) * symesz;
- }
-
- /* We do not need this object file. */
- return true;
-}
-
-/* Look through the loader symbols to see if this dynamic object
- should be included in the link. The native linker uses the loader
- symbols, not the normal symbol table, so we do too. */
+/* This function is used to add symbols from a dynamic object to the
+ global symbol table. */
-static boolean
-xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- boolean *pneeded;
+static bfd_boolean
+xcoff_link_add_dynamic_symbols (bfd *abfd, struct bfd_link_info *info)
{
asection *lsec;
bfd_byte *contents;
struct internal_ldhdr ldhdr;
const char *strings;
bfd_byte *elsym, *elsymend;
+ struct xcoff_import_file *n;
+ const char *bname;
+ const char *mname;
+ const char *s;
+ unsigned int c;
+ struct xcoff_import_file **pp;
+
+ /* We can only handle a dynamic object if we are generating an XCOFF
+ output file. */
+ if (info->hash->creator != abfd->xvec)
+ {
+ (*_bfd_error_handler)
+ (_("%s: XCOFF shared object when not producing XCOFF output"),
+ bfd_get_filename (abfd));
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
- *pneeded = false;
+ /* The symbols we use from a dynamic object are not the symbols in
+ the normal symbol table, but, rather, the symbols in the export
+ table. If there is a global symbol in a dynamic object which is
+ not in the export table, the loader will not be able to find it,
+ so we don't want to find it either. Also, on AIX 4.1.3, shr.o in
+ libc.a has symbols in the export table which are not in the
+ symbol table. */
+ /* Read in the .loader section. FIXME: We should really use the
+ o_snloader field in the a.out header, rather than grabbing the
+ section by name. */
lsec = bfd_get_section_by_name (abfd, ".loader");
if (lsec == NULL)
{
- /* There are no symbols, so don't try to include it. */
- return true;
+ (*_bfd_error_handler)
+ (_("%s: dynamic object with no .loader section"),
+ bfd_get_filename (abfd));
+ bfd_set_error (bfd_error_no_symbols);
+ return FALSE;
}
if (! xcoff_get_section_contents (abfd, lsec))
- return false;
+ return FALSE;
contents = coff_section_data (abfd, lsec)->contents;
+ /* Remove the sections from this object, so that they do not get
+ included in the link. */
+ bfd_section_list_clear (abfd);
+
bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
strings = (char *) contents + ldhdr.l_stoff;
elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr);
elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+
for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd))
{
struct internal_ldsym ldsym;
char nambuf[SYMNMLEN + 1];
const char *name;
- struct bfd_link_hash_entry *h;
+ struct xcoff_link_hash_entry *h;
bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
name = nambuf;
}
- h = bfd_link_hash_lookup (info->hash, name, false, false, true);
+ /* Normally we could not call xcoff_link_hash_lookup in an add
+ symbols routine, since we might not be using an XCOFF hash
+ table. However, we verified above that we are using an XCOFF
+ hash table. */
- /* We are only interested in symbols that are currently
- undefined. At this point we know that we are using an XCOFF
- hash table. */
- if (h != NULL
- && h->type == bfd_link_hash_undefined
- && (((struct xcoff_link_hash_entry *) h)->flags
- & XCOFF_DEF_DYNAMIC) == 0)
- {
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
- return false;
- *pneeded = true;
- return true;
- }
- }
+ h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE,
+ TRUE, TRUE);
+ if (h == NULL)
+ return FALSE;
- /* We do not need this shared object. */
+ h->flags |= XCOFF_DEF_DYNAMIC;
- if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
- {
- free (coff_section_data (abfd, lsec)->contents);
- coff_section_data (abfd, lsec)->contents = NULL;
- }
+ /* If the symbol is undefined, and the BFD it was found in is
+ not a dynamic object, change the BFD to this dynamic object,
+ so that we can get the correct import file ID. */
+ if ((h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
+ && (h->root.u.undef.abfd == NULL
+ || (h->root.u.undef.abfd->flags & DYNAMIC) == 0))
+ h->root.u.undef.abfd = abfd;
- return true;
-}
+ if (h->root.type == bfd_link_hash_new)
+ {
+ h->root.type = bfd_link_hash_undefined;
+ h->root.u.undef.abfd = abfd;
+ /* We do not want to add this to the undefined symbol list. */
+ }
-/* Returns the index of reloc in RELOCS with the least address greater
- than or equal to ADDRESS. The relocs are sorted by address. */
+ if (h->smclas == XMC_UA
+ || h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
+ h->smclas = ldsym.l_smclas;
-static bfd_size_type
-xcoff_find_reloc (relocs, count, address)
- struct internal_reloc *relocs;
- bfd_size_type count;
- bfd_vma address;
-{
- bfd_size_type min, max, this;
+ /* Unless this is an XMC_XO symbol, we don't bother to actually
+ define it, since we don't have a section to put it in anyhow.
+ Instead, the relocation routines handle the DEF_DYNAMIC flag
+ correctly. */
- if (count < 2)
- {
- if (count == 1 && relocs[0].r_vaddr < address)
- return 1;
- else
- return 0;
- }
+ if (h->smclas == XMC_XO
+ && (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak))
+ {
+ /* This symbol has an absolute value. */
+ h->root.type = bfd_link_hash_defined;
+ h->root.u.def.section = bfd_abs_section_ptr;
+ h->root.u.def.value = ldsym.l_value;
+ }
- min = 0;
- max = count;
+ /* If this symbol defines a function descriptor, then it
+ implicitly defines the function code as well. */
+ if (h->smclas == XMC_DS
+ || (h->smclas == XMC_XO && name[0] != '.'))
+ h->flags |= XCOFF_DESCRIPTOR;
+ if ((h->flags & XCOFF_DESCRIPTOR) != 0)
+ {
+ struct xcoff_link_hash_entry *hds;
- /* Do a binary search over (min,max]. */
- while (min + 1 < max)
- {
- bfd_vma raddr;
+ hds = h->descriptor;
+ if (hds == NULL)
+ {
+ char *dsnm;
- this = (max + min) / 2;
- raddr = relocs[this].r_vaddr;
- if (raddr > address)
- max = this;
- else if (raddr < address)
- min = this;
- else
- {
- min = this;
- break;
+ dsnm = bfd_malloc ((bfd_size_type) strlen (name) + 2);
+ if (dsnm == NULL)
+ return FALSE;
+ dsnm[0] = '.';
+ strcpy (dsnm + 1, name);
+ hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm,
+ TRUE, TRUE, TRUE);
+ free (dsnm);
+ if (hds == NULL)
+ return FALSE;
+
+ if (hds->root.type == bfd_link_hash_new)
+ {
+ hds->root.type = bfd_link_hash_undefined;
+ hds->root.u.undef.abfd = abfd;
+ /* We do not want to add this to the undefined
+ symbol list. */
+ }
+
+ hds->descriptor = h;
+ h->descriptor = hds;
+ }
+
+ hds->flags |= XCOFF_DEF_DYNAMIC;
+ if (hds->smclas == XMC_UA)
+ hds->smclas = XMC_PR;
+
+ /* An absolute symbol appears to actually define code, not a
+ function descriptor. This is how some math functions are
+ implemented on AIX 4.1. */
+ if (h->smclas == XMC_XO
+ && (hds->root.type == bfd_link_hash_undefined
+ || hds->root.type == bfd_link_hash_undefweak))
+ {
+ hds->smclas = XMC_XO;
+ hds->root.type = bfd_link_hash_defined;
+ hds->root.u.def.section = bfd_abs_section_ptr;
+ hds->root.u.def.value = ldsym.l_value;
+ }
}
}
- if (relocs[min].r_vaddr < address)
- return min + 1;
+ if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
+ {
+ free (coff_section_data (abfd, lsec)->contents);
+ coff_section_data (abfd, lsec)->contents = NULL;
+ }
- while (min > 0
- && relocs[min - 1].r_vaddr == address)
- --min;
+ /* Record this file in the import files. */
+ n = bfd_alloc (abfd, (bfd_size_type) sizeof (struct xcoff_import_file));
+ if (n == NULL)
+ return FALSE;
+ n->next = NULL;
- return min;
-}
+ /* For some reason, the path entry in the import file list for a
+ shared object appears to always be empty. The file name is the
+ base name. */
+ n->path = "";
+ if (abfd->my_archive == NULL)
+ {
+ bname = bfd_get_filename (abfd);
+ mname = "";
+ }
+ else
+ {
+ bname = bfd_get_filename (abfd->my_archive);
+ mname = bfd_get_filename (abfd);
+ }
+ s = strrchr (bname, '/');
+ if (s != NULL)
+ bname = s + 1;
+ n->file = bname;
+ n->member = mname;
+
+ /* We start c at 1 because the first import file number is reserved
+ for LIBPATH. */
+ for (pp = &xcoff_hash_table (info)->imports, c = 1;
+ *pp != NULL;
+ pp = &(*pp)->next, ++c)
+ ;
+ *pp = n;
+
+ xcoff_data (abfd)->import_file_id = c;
+ return TRUE;
+}
-/*
- * xcoff_link_create_extra_sections
- *
- * Takes care of creating the .loader, .gl, .ds, .debug and sections
- */
-static boolean
-xcoff_link_create_extra_sections(bfd * abfd, struct bfd_link_info *info) {
+/* xcoff_link_create_extra_sections
- boolean return_value = false;
+ Takes care of creating the .loader, .gl, .ds, .debug and sections. */
- if (info->hash->creator == abfd->xvec) {
+static bfd_boolean
+xcoff_link_create_extra_sections (bfd * abfd, struct bfd_link_info *info)
+{
+ bfd_boolean return_value = FALSE;
+ if (info->hash->creator == abfd->xvec)
+ {
/* We need to build a .loader section, so we do it here. This
won't work if we're producing an XCOFF output file with no
XCOFF input files. FIXME. */
- if (xcoff_hash_table (info)->loader_section == NULL) {
- asection *lsec;
-
- lsec = bfd_make_section_anyway (abfd, ".loader");
- if (lsec == NULL) {
- goto end_return;
+ if (xcoff_hash_table (info)->loader_section == NULL)
+ {
+ asection *lsec;
+
+ lsec = bfd_make_section_anyway (abfd, ".loader");
+ if (lsec == NULL)
+ goto end_return;
+
+ xcoff_hash_table (info)->loader_section = lsec;
+ lsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
}
- xcoff_hash_table (info)->loader_section = lsec;
- lsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- }
/* Likewise for the linkage section. */
- if (xcoff_hash_table (info)->linkage_section == NULL) {
- asection *lsec;
+ if (xcoff_hash_table (info)->linkage_section == NULL)
+ {
+ asection *lsec;
- lsec = bfd_make_section_anyway (abfd, ".gl");
- if (lsec == NULL) {
- goto end_return;
- }
+ lsec = bfd_make_section_anyway (abfd, ".gl");
+ if (lsec == NULL)
+ goto end_return;
- xcoff_hash_table (info)->linkage_section = lsec;
- lsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY);
- lsec->alignment_power = 2;
- }
+ xcoff_hash_table (info)->linkage_section = lsec;
+ lsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ lsec->alignment_power = 2;
+ }
/* Likewise for the TOC section. */
- if (xcoff_hash_table (info)->toc_section == NULL) {
- asection *tsec;
-
- tsec = bfd_make_section_anyway (abfd, ".tc");
- if (tsec == NULL) {
- goto end_return;
- }
+ if (xcoff_hash_table (info)->toc_section == NULL)
+ {
+ asection *tsec;
- xcoff_hash_table (info)->toc_section = tsec;
- tsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY);
- tsec->alignment_power = 2;
- }
+ tsec = bfd_make_section_anyway (abfd, ".tc");
+ if (tsec == NULL)
+ goto end_return;
- /* Likewise for the descriptor section. */
- if (xcoff_hash_table (info)->descriptor_section == NULL) {
- asection *dsec;
-
- dsec = bfd_make_section_anyway (abfd, ".ds");
- if (dsec == NULL) {
- goto end_return;
+ xcoff_hash_table (info)->toc_section = tsec;
+ tsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ tsec->alignment_power = 2;
}
- xcoff_hash_table (info)->descriptor_section = dsec;
- dsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
- | SEC_IN_MEMORY);
- dsec->alignment_power = 2;
- }
+ /* Likewise for the descriptor section. */
+ if (xcoff_hash_table (info)->descriptor_section == NULL)
+ {
+ asection *dsec;
+
+ dsec = bfd_make_section_anyway (abfd, ".ds");
+ if (dsec == NULL)
+ goto end_return;
+
+ xcoff_hash_table (info)->descriptor_section = dsec;
+ dsec->flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
+ | SEC_IN_MEMORY);
+ dsec->alignment_power = 2;
+ }
/* Likewise for the .debug section. */
if (xcoff_hash_table (info)->debug_section == NULL
- && info->strip != strip_all) {
- asection *dsec;
+ && info->strip != strip_all)
+ {
+ asection *dsec;
+
+ dsec = bfd_make_section_anyway (abfd, ".debug");
+ if (dsec == NULL)
+ goto end_return;
- dsec = bfd_make_section_anyway (abfd, ".debug");
- if (dsec == NULL) {
- goto end_return;
+ xcoff_hash_table (info)->debug_section = dsec;
+ dsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
}
- xcoff_hash_table (info)->debug_section = dsec;
- dsec->flags |= SEC_HAS_CONTENTS | SEC_IN_MEMORY;
- }
- }
-
- return_value = true;
+ }
+
+ return_value = TRUE;
end_return:
return return_value;
}
+/* Returns the index of reloc in RELOCS with the least address greater
+ than or equal to ADDRESS. The relocs are sorted by address. */
+
+static bfd_size_type
+xcoff_find_reloc (struct internal_reloc *relocs,
+ bfd_size_type count,
+ bfd_vma address)
+{
+ bfd_size_type min, max, this;
+
+ if (count < 2)
+ {
+ if (count == 1 && relocs[0].r_vaddr < address)
+ return 1;
+ else
+ return 0;
+ }
+
+ min = 0;
+ max = count;
+
+ /* Do a binary search over (min,max]. */
+ while (min + 1 < max)
+ {
+ bfd_vma raddr;
+
+ this = (max + min) / 2;
+ raddr = relocs[this].r_vaddr;
+ if (raddr > address)
+ max = this;
+ else if (raddr < address)
+ min = this;
+ else
+ {
+ min = this;
+ break;
+ }
+ }
+
+ if (relocs[min].r_vaddr < address)
+ return min + 1;
+
+ while (min > 0
+ && relocs[min - 1].r_vaddr == address)
+ --min;
+
+ return min;
+}
+
/* Add all the symbols from an object file to the hash table.
XCOFF is a weird format. A normal XCOFF .o files will have three
relocation entries carefully, since the only way to tell which
csect they belong to is to examine the address. */
-static boolean
-xcoff_link_add_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+static bfd_boolean
+xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
{
unsigned int n_tmask;
unsigned int n_btshft;
- boolean default_copy;
+ bfd_boolean default_copy;
bfd_size_type symcount;
struct xcoff_link_hash_entry **sym_hash;
asection **csect_cache;
bfd_size_type linesz;
asection *o;
asection *last_real;
- boolean keep_syms;
+ bfd_boolean keep_syms;
asection *csect;
unsigned int csect_index;
asection *first_csect;
bfd_size_type symesz;
bfd_byte *esym;
bfd_byte *esym_end;
- struct reloc_info_struct
+ struct reloc_info_struct
{
struct internal_reloc *relocs;
asection **csects;
bfd_byte *linenos;
} *reloc_info = NULL;
+ bfd_size_type amt;
keep_syms = obj_coff_keep_syms (abfd);
if ((abfd->flags & DYNAMIC) != 0
- && ! info->static_link) {
- if (! xcoff_link_add_dynamic_symbols (abfd, info)) {
- return false;
+ && ! info->static_link)
+ {
+ if (! xcoff_link_add_dynamic_symbols (abfd, info))
+ return FALSE;
}
- }
- /* create the loader, toc, gl, ds and debug sections, if needed */
- if (false == xcoff_link_create_extra_sections(abfd, info)) {
+ /* Create the loader, toc, gl, ds and debug sections, if needed. */
+ if (! xcoff_link_create_extra_sections (abfd, info))
goto error_return;
- }
if ((abfd->flags & DYNAMIC) != 0
&& ! info->static_link)
- return true;
+ return TRUE;
n_tmask = coff_data (abfd)->local_n_tmask;
n_btshft = coff_data (abfd)->local_n_btshft;
#define N_BTSHFT n_btshft
if (info->keep_memory)
- default_copy = false;
+ default_copy = FALSE;
else
- default_copy = true;
+ default_copy = TRUE;
- symcount = obj_raw_syment_count (abfd);
+ symcount = obj_raw_syment_count (abfd);
/* We keep a list of the linker hash table entries that correspond
to each external symbol. */
- sym_hash = ((struct xcoff_link_hash_entry **)
- bfd_alloc (abfd,
- (symcount
- * sizeof (struct xcoff_link_hash_entry *))));
+ amt = symcount * sizeof (struct xcoff_link_hash_entry *);
+ sym_hash = bfd_zalloc (abfd, amt);
if (sym_hash == NULL && symcount != 0)
goto error_return;
coff_data (abfd)->sym_hashes = (struct coff_link_hash_entry **) sym_hash;
- memset (sym_hash, 0,
- (size_t) symcount * sizeof (struct xcoff_link_hash_entry *));
/* Because of the weird stuff we are doing with XCOFF csects, we can
not easily determine which section a symbol is in, so we store
the information in the tdata for the input file. */
- csect_cache = ((asection **)
- bfd_alloc (abfd, symcount * sizeof (asection *)));
+ amt = symcount * sizeof (asection *);
+ csect_cache = bfd_zalloc (abfd, amt);
if (csect_cache == NULL && symcount != 0)
goto error_return;
xcoff_data (abfd)->csects = csect_cache;
- memset (csect_cache, 0, (size_t) symcount * sizeof (asection *));
/* While splitting sections into csects, we need to assign the
relocs correctly. The relocs and the csects must both be in
order by VMA within a given section, so we handle this by
scanning along the relocs as we process the csects. We index
into reloc_info using the section target_index. */
- reloc_info = ((struct reloc_info_struct *)
- bfd_malloc ((abfd->section_count + 1)
- * sizeof (struct reloc_info_struct)));
+ amt = abfd->section_count + 1;
+ amt *= sizeof (struct reloc_info_struct);
+ reloc_info = bfd_zmalloc (amt);
if (reloc_info == NULL)
goto error_return;
- memset ((PTR) reloc_info, 0,
- (abfd->section_count + 1) * sizeof (struct reloc_info_struct));
/* Read in the relocs and line numbers for each section. */
linesz = bfd_coff_linesz (abfd);
last_real = NULL;
- for (o = abfd->sections; o != NULL; o = o->next) {
-
- last_real = o;
- if ((o->flags & SEC_RELOC) != 0) {
-
- reloc_info[o->target_index].relocs =
- xcoff_read_internal_relocs (abfd, o, true, (bfd_byte *) NULL,
- false, (struct internal_reloc *) NULL);
- reloc_info[o->target_index].csects =
- (asection **) bfd_malloc (o->reloc_count * sizeof (asection *));
- if (reloc_info[o->target_index].csects == NULL)
- goto error_return;
- memset (reloc_info[o->target_index].csects, 0,
- o->reloc_count * sizeof (asection *));
-
- }
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ last_real = o;
- if ((info->strip == strip_none || info->strip == strip_some)
- && o->lineno_count > 0) {
+ if ((o->flags & SEC_RELOC) != 0)
+ {
+ reloc_info[o->target_index].relocs =
+ xcoff_read_internal_relocs (abfd, o, TRUE, NULL, FALSE, NULL);
+ amt = o->reloc_count;
+ amt *= sizeof (asection *);
+ reloc_info[o->target_index].csects = bfd_zmalloc (amt);
+ if (reloc_info[o->target_index].csects == NULL)
+ goto error_return;
+ }
- bfd_byte *linenos;
+ if ((info->strip == strip_none || info->strip == strip_some)
+ && o->lineno_count > 0)
+ {
+ bfd_byte *linenos;
- linenos = (bfd_byte *) bfd_malloc (o->lineno_count * linesz);
- if (linenos == NULL)
- goto error_return;
- reloc_info[o->target_index].linenos = linenos;
- if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0
- || (bfd_read (linenos, linesz, o->lineno_count, abfd)
- != linesz * o->lineno_count))
- goto error_return;
-
+ amt = linesz * o->lineno_count;
+ linenos = bfd_malloc (amt);
+ if (linenos == NULL)
+ goto error_return;
+ reloc_info[o->target_index].linenos = linenos;
+ if (bfd_seek (abfd, o->line_filepos, SEEK_SET) != 0
+ || bfd_bread (linenos, amt, abfd) != amt)
+ goto error_return;
+ }
}
- }
-
/* Don't let the linker relocation routines discard the symbols. */
- obj_coff_keep_syms (abfd) = true;
+ obj_coff_keep_syms (abfd) = TRUE;
csect = NULL;
csect_index = 0;
esym = (bfd_byte *) obj_coff_external_syms (abfd);
esym_end = esym + symcount * symesz;
- while (esym < esym_end) {
- struct internal_syment sym;
- union internal_auxent aux;
- const char *name;
- char buf[SYMNMLEN + 1];
- int smtyp;
- flagword flags;
- asection *section;
- bfd_vma value;
- struct xcoff_link_hash_entry *set_toc;
-
- bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym);
-
- /* In this pass we are only interested in symbols with csect
- information. */
- if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT) {
-
- /*
- * Set csect_cache,
- * Normally csect is a .pr, .rw etc. created in the loop
- * If C_FILE or first time, handle special
- *
- * Advance esym, sym_hash, csect_hash ptr's
- * Keep track of the last_symndx for the current file
- */
- if (sym.n_sclass == C_FILE && csect != NULL) {
- xcoff_section_data (abfd, csect)->last_symndx =
- ((esym
- - (bfd_byte *) obj_coff_external_syms (abfd))
- / symesz);
- csect = NULL;
- }
+ while (esym < esym_end)
+ {
+ struct internal_syment sym;
+ union internal_auxent aux;
+ const char *name;
+ char buf[SYMNMLEN + 1];
+ int smtyp;
+ flagword flags;
+ asection *section;
+ bfd_vma value;
+ struct xcoff_link_hash_entry *set_toc;
+
+ bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym);
+
+ /* In this pass we are only interested in symbols with csect
+ information. */
+ if (sym.n_sclass != C_EXT && sym.n_sclass != C_HIDEXT)
+ {
+ /* Set csect_cache,
+ Normally csect is a .pr, .rw etc. created in the loop
+ If C_FILE or first time, handle special
- if (csect != NULL)
- *csect_cache = csect;
- else if (first_csect == NULL || sym.n_sclass == C_FILE)
- *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum);
- else
- *csect_cache = NULL;
- esym += (sym.n_numaux + 1) * symesz;
- sym_hash += sym.n_numaux + 1;
- csect_cache += sym.n_numaux + 1;
-
- continue;
- }
+ Advance esym, sym_hash, csect_hash ptr's
+ Keep track of the last_symndx for the current file. */
+ if (sym.n_sclass == C_FILE && csect != NULL)
+ {
+ xcoff_section_data (abfd, csect)->last_symndx =
+ ((esym
+ - (bfd_byte *) obj_coff_external_syms (abfd))
+ / symesz);
+ csect = NULL;
+ }
+
+ if (csect != NULL)
+ *csect_cache = csect;
+ else if (first_csect == NULL || sym.n_sclass == C_FILE)
+ *csect_cache = coff_section_from_bfd_index (abfd, sym.n_scnum);
+ else
+ *csect_cache = NULL;
+ esym += (sym.n_numaux + 1) * symesz;
+ sym_hash += sym.n_numaux + 1;
+ csect_cache += sym.n_numaux + 1;
+
+ continue;
+ }
- name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
+ name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
- if (name == NULL)
- goto error_return;
+ if (name == NULL)
+ goto error_return;
/* If this symbol has line number information attached to it,
- and we're not stripping it, count the number of entries and
- add them to the count for this csect. In the final link pass
- we are going to attach line number information by symbol,
- rather than by section, in order to more easily handle
- garbage collection. */
- if ((info->strip == strip_none || info->strip == strip_some) &&
- (sym.n_numaux > 1) &&
- (csect != NULL) &&
- (ISFCN (sym.n_type))) {
-
- union internal_auxent auxlin;
-
- bfd_coff_swap_aux_in (abfd, (PTR) (esym + symesz),
- sym.n_type, sym.n_sclass,
- 0, sym.n_numaux, (PTR) &auxlin);
-
- if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0) {
- asection *enclosing;
- bfd_signed_vma linoff;
-
- enclosing = xcoff_section_data (abfd, csect)->enclosing;
- if (enclosing == NULL) {
+ and we're not stripping it, count the number of entries and
+ add them to the count for this csect. In the final link pass
+ we are going to attach line number information by symbol,
+ rather than by section, in order to more easily handle
+ garbage collection. */
+ if ((info->strip == strip_none || info->strip == strip_some)
+ && sym.n_numaux > 1
+ && csect != NULL
+ && ISFCN (sym.n_type))
+ {
+ union internal_auxent auxlin;
+
+ bfd_coff_swap_aux_in (abfd, (void *) (esym + symesz),
+ sym.n_type, sym.n_sclass,
+ 0, sym.n_numaux, (void *) &auxlin);
+
+ if (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0)
+ {
+ asection *enclosing;
+ bfd_signed_vma linoff;
+
+ enclosing = xcoff_section_data (abfd, csect)->enclosing;
+ if (enclosing == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("%B: `%s' has line numbers but no enclosing section"),
+ abfd, name);
+ bfd_set_error (bfd_error_bad_value);
+ goto error_return;
+ }
+ linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr
+ - enclosing->line_filepos);
+ /* Explicit cast to bfd_signed_vma for compiler. */
+ if (linoff < (bfd_signed_vma) (enclosing->lineno_count * linesz))
+ {
+ struct internal_lineno lin;
+ bfd_byte *linpstart;
+
+ linpstart = (reloc_info[enclosing->target_index].linenos
+ + linoff);
+ bfd_coff_swap_lineno_in (abfd, (void *) linpstart, (void *) &lin);
+ if (lin.l_lnno == 0
+ && ((bfd_size_type) lin.l_addr.l_symndx
+ == ((esym
+ - (bfd_byte *) obj_coff_external_syms (abfd))
+ / symesz)))
+ {
+ bfd_byte *linpend, *linp;
+
+ linpend = (reloc_info[enclosing->target_index].linenos
+ + enclosing->lineno_count * linesz);
+ for (linp = linpstart + linesz;
+ linp < linpend;
+ linp += linesz)
+ {
+ bfd_coff_swap_lineno_in (abfd, (void *) linp,
+ (void *) &lin);
+ if (lin.l_lnno == 0)
+ break;
+ }
+ csect->lineno_count += (linp - linpstart) / linesz;
+ /* The setting of line_filepos will only be
+ useful if all the line number entries for a
+ csect are contiguous; this only matters for
+ error reporting. */
+ if (csect->line_filepos == 0)
+ csect->line_filepos =
+ auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr;
+ }
+ }
+ }
+ }
+
+ /* Pick up the csect auxiliary information. */
+ if (sym.n_numaux == 0)
+ {
(*_bfd_error_handler)
- (_("%s: `%s' has line numbers but no enclosing section"),
- bfd_get_filename (abfd), name);
+ (_("%B: class %d symbol `%s' has no aux entries"),
+ abfd, sym.n_sclass, name);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
- linoff = (auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr
- - enclosing->line_filepos);
- /* explict cast to bfd_signed_vma for compiler */
- if (linoff < (bfd_signed_vma)(enclosing->lineno_count * linesz)) {
- struct internal_lineno lin;
- bfd_byte *linpstart;
-
- linpstart = (reloc_info[enclosing->target_index].linenos
- + linoff);
- bfd_coff_swap_lineno_in (abfd, (PTR) linpstart, (PTR) &lin);
- if (lin.l_lnno == 0
- && ((bfd_size_type) lin.l_addr.l_symndx
- == ((esym
- - (bfd_byte *) obj_coff_external_syms (abfd))
- / symesz))) {
- bfd_byte *linpend, *linp;
-
- linpend = (reloc_info[enclosing->target_index].linenos
- + enclosing->lineno_count * linesz);
- for (linp = linpstart + linesz; linp < linpend; linp += linesz) {
- bfd_coff_swap_lineno_in (abfd, (PTR) linp,
- (PTR) &lin);
- if (lin.l_lnno == 0)
- break;
- }
- csect->lineno_count += (linp - linpstart) / linesz;
- /* The setting of line_filepos will only be
- useful if all the line number entries for a
- csect are contiguous; this only matters for
- error reporting. */
- if (csect->line_filepos == 0)
- csect->line_filepos =
- auxlin.x_sym.x_fcnary.x_fcn.x_lnnoptr;
- }
- }
- }
- }
-
- /* Pick up the csect auxiliary information. */
-
- if (sym.n_numaux == 0) {
- (*_bfd_error_handler)
- (_("%s: class %d symbol `%s' has no aux entries"),
- bfd_get_filename (abfd), sym.n_sclass, name);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
- bfd_coff_swap_aux_in (abfd,
- (PTR) (esym + symesz * sym.n_numaux),
- sym.n_type, sym.n_sclass,
+ bfd_coff_swap_aux_in (abfd,
+ (void *) (esym + symesz * sym.n_numaux),
+ sym.n_type, sym.n_sclass,
sym.n_numaux - 1, sym.n_numaux,
- (PTR) &aux);
+ (void *) &aux);
smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp);
{
default:
(*_bfd_error_handler)
- (_("%s: symbol `%s' has unrecognized csect type %d"),
- bfd_get_filename (abfd), name, smtyp);
+ (_("%B: symbol `%s' has unrecognized csect type %d"),
+ abfd, name, smtyp);
bfd_set_error (bfd_error_bad_value);
goto error_return;
|| aux.x_csect.x_scnlen.l != 0)
{
(*_bfd_error_handler)
- (_("%s: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"),
- bfd_get_filename (abfd), name, sym.n_sclass, sym.n_scnum,
+ (_("%B: bad XTY_ER symbol `%s': class %d scnum %d scnlen %d"),
+ abfd, name, sym.n_sclass, sym.n_scnum,
aux.x_csect.x_scnlen.l);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
/* An XMC_XO external reference is actually a reference to
- an absolute location. */
+ an absolute location. */
if (aux.x_csect.x_smclas != XMC_XO)
section = bfd_und_section_ptr;
else
if (csect != NULL)
{
xcoff_section_data (abfd, csect)->last_symndx =
- ((esym
- - (bfd_byte *) obj_coff_external_syms (abfd))
- / symesz);
+ ((esym - (bfd_byte *) obj_coff_external_syms (abfd)) / symesz);
}
csect = NULL;
- csect_index = -1;
+ csect_index = -(unsigned) 1;
/* When we see a TOC anchor, we record the TOC value. */
if (aux.x_csect.x_smclas == XMC_TC0)
|| aux.x_csect.x_scnlen.l != 0)
{
(*_bfd_error_handler)
- (_("%s: XMC_TC0 symbol `%s' is class %d scnlen %d"),
- bfd_get_filename (abfd), name, sym.n_sclass,
- aux.x_csect.x_scnlen.l);
+ (_("%B: XMC_TC0 symbol `%s' is class %d scnlen %d"),
+ abfd, name, sym.n_sclass, aux.x_csect.x_scnlen.l);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
xcoff_data (abfd)->toc = sym.n_value;
}
- /*
- * We must merge TOC entries for the same symbol. We can
- * merge two TOC entries if they are both C_HIDEXT, they
- * both have the same name, they are both 4 or 8 bytes long, and
- * they both have a relocation table entry for an external
- * symbol with the same name. Unfortunately, this means
- * that we must look through the relocations. Ick.
- *
- * Logic for 32 bit vs 64 bit.
- * 32 bit has a csect length of 4 for TOC
- * 64 bit has a csect length of 8 for TOC
- *
- * The conditions to get past the if-check are not that bad.
- * They are what is used to create the TOC csects in the first
- * place
- */
- if ((aux.x_csect.x_smclas == XMC_TC) &&
- (sym.n_sclass == C_HIDEXT) &&
- (info->hash->creator == abfd->xvec) &&
- (((bfd_xcoff_is_xcoff32(abfd)) &&
- (aux.x_csect.x_scnlen.l == 4)) ||
- ((bfd_xcoff_is_xcoff64(abfd)) &&
- (aux.x_csect.x_scnlen.l == 8)))) {
-
- asection *enclosing;
- struct internal_reloc *relocs;
- bfd_size_type relindx;
- struct internal_reloc *rel;
-
- enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
- if (enclosing == NULL)
- goto error_return;
+ /* We must merge TOC entries for the same symbol. We can
+ merge two TOC entries if they are both C_HIDEXT, they
+ both have the same name, they are both 4 or 8 bytes long, and
+ they both have a relocation table entry for an external
+ symbol with the same name. Unfortunately, this means
+ that we must look through the relocations. Ick.
+
+ Logic for 32 bit vs 64 bit.
+ 32 bit has a csect length of 4 for TOC
+ 64 bit has a csect length of 8 for TOC
+
+ The conditions to get past the if-check are not that bad.
+ They are what is used to create the TOC csects in the first
+ place. */
+ if (aux.x_csect.x_smclas == XMC_TC
+ && sym.n_sclass == C_HIDEXT
+ && info->hash->creator == abfd->xvec
+ && ((bfd_xcoff_is_xcoff32 (abfd)
+ && aux.x_csect.x_scnlen.l == 4)
+ || (bfd_xcoff_is_xcoff64 (abfd)
+ && aux.x_csect.x_scnlen.l == 8)))
+ {
+ asection *enclosing;
+ struct internal_reloc *relocs;
+ bfd_size_type relindx;
+ struct internal_reloc *rel;
- relocs = reloc_info[enclosing->target_index].relocs;
- relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
- sym.n_value);
- rel = relocs + relindx;
-
- /*
- * 32 bit R_POS r_size is 31
- * 64 bit R_POS r_size is 63
- */
- if ((relindx < enclosing->reloc_count) &&
- (rel->r_vaddr == (bfd_vma) sym.n_value) &&
- (rel->r_type == R_POS) &&
- (((bfd_xcoff_is_xcoff32(abfd)) &&
- (rel->r_size == 31)) ||
- ((bfd_xcoff_is_xcoff64(abfd)) &&
- (rel->r_size == 63)))) {
-
- bfd_byte *erelsym;
-
- struct internal_syment relsym;
-
- erelsym = ((bfd_byte *) obj_coff_external_syms (abfd)
- + rel->r_symndx * symesz);
- bfd_coff_swap_sym_in (abfd, (PTR) erelsym, (PTR) &relsym);
- if (relsym.n_sclass == C_EXT) {
- const char *relname;
- char relbuf[SYMNMLEN + 1];
- boolean copy;
- struct xcoff_link_hash_entry *h;
-
- /* At this point we know that the TOC entry is
- for an externally visible symbol. */
-
- relname = _bfd_coff_internal_syment_name (abfd, &relsym,
- relbuf);
- if (relname == NULL)
- goto error_return;
-
- /* We only merge TOC entries if the TC name is
- the same as the symbol name. This handles
- the normal case, but not common cases like
- SYM.P4 which gcc generates to store SYM + 4
- in the TOC. FIXME. */
-
- if (strcmp (name, relname) == 0) {
- copy = (! info->keep_memory
- || relsym._n._n_n._n_zeroes != 0
- || relsym._n._n_n._n_offset == 0);
- h = xcoff_link_hash_lookup (xcoff_hash_table (info),
- relname, true, copy,
- false);
- if (h == NULL)
- goto error_return;
-
- /* At this point h->root.type could be
- bfd_link_hash_new. That should be OK,
- since we know for sure that we will come
- across this symbol as we step through the
- file. */
-
- /* We store h in *sym_hash for the
- convenience of the relocate_section
- function. */
- *sym_hash = h;
-
- if (h->toc_section != NULL) {
- asection **rel_csects;
-
- /* We already have a TOC entry for this
- symbol, so we can just ignore this
- one. */
- rel_csects =
- reloc_info[enclosing->target_index].csects;
- rel_csects[relindx] = bfd_und_section_ptr;
- break;
- }
-
- /* We are about to create a TOC entry for
- this symbol. */
- set_toc = h;
- } /* merge toc reloc */
- } /* c_ext */
- } /* reloc */
- } /* merge toc */
+ enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
+ if (enclosing == NULL)
+ goto error_return;
- {
+ relocs = reloc_info[enclosing->target_index].relocs;
+ amt = enclosing->reloc_count;
+ relindx = xcoff_find_reloc (relocs, amt, sym.n_value);
+ rel = relocs + relindx;
+
+ /* 32 bit R_POS r_size is 31
+ 64 bit R_POS r_size is 63 */
+ if (relindx < enclosing->reloc_count
+ && rel->r_vaddr == (bfd_vma) sym.n_value
+ && rel->r_type == R_POS
+ && ((bfd_xcoff_is_xcoff32 (abfd)
+ && rel->r_size == 31)
+ || (bfd_xcoff_is_xcoff64 (abfd)
+ && rel->r_size == 63)))
+ {
+ bfd_byte *erelsym;
+
+ struct internal_syment relsym;
+
+ erelsym = ((bfd_byte *) obj_coff_external_syms (abfd)
+ + rel->r_symndx * symesz);
+ bfd_coff_swap_sym_in (abfd, (void *) erelsym, (void *) &relsym);
+ if (relsym.n_sclass == C_EXT)
+ {
+ const char *relname;
+ char relbuf[SYMNMLEN + 1];
+ bfd_boolean copy;
+ struct xcoff_link_hash_entry *h;
+
+ /* At this point we know that the TOC entry is
+ for an externally visible symbol. */
+ relname = _bfd_coff_internal_syment_name (abfd, &relsym,
+ relbuf);
+ if (relname == NULL)
+ goto error_return;
+
+ /* We only merge TOC entries if the TC name is
+ the same as the symbol name. This handles
+ the normal case, but not common cases like
+ SYM.P4 which gcc generates to store SYM + 4
+ in the TOC. FIXME. */
+ if (strcmp (name, relname) == 0)
+ {
+ copy = (! info->keep_memory
+ || relsym._n._n_n._n_zeroes != 0
+ || relsym._n._n_n._n_offset == 0);
+ h = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ relname, TRUE, copy,
+ FALSE);
+ if (h == NULL)
+ goto error_return;
+
+ /* At this point h->root.type could be
+ bfd_link_hash_new. That should be OK,
+ since we know for sure that we will come
+ across this symbol as we step through the
+ file. */
+
+ /* We store h in *sym_hash for the
+ convenience of the relocate_section
+ function. */
+ *sym_hash = h;
+
+ if (h->toc_section != NULL)
+ {
+ asection **rel_csects;
+
+ /* We already have a TOC entry for this
+ symbol, so we can just ignore this
+ one. */
+ rel_csects =
+ reloc_info[enclosing->target_index].csects;
+ rel_csects[relindx] = bfd_und_section_ptr;
+ break;
+ }
+
+ /* We are about to create a TOC entry for
+ this symbol. */
+ set_toc = h;
+ }
+ }
+ }
+ }
+ {
asection *enclosing;
/* We need to create a new section. We get the name from
accumulate similar csects together. */
csect = bfd_xcoff_create_csect_from_smclas(abfd, &aux, name);
- if (NULL == csect) {
+ if (NULL == csect)
goto error_return;
- }
- /*
- * The enclosing section is the main section : .data, .text
- * or .bss that the csect is coming from
- */
+ /* The enclosing section is the main section : .data, .text
+ or .bss that the csect is coming from. */
enclosing = coff_section_from_bfd_index (abfd, sym.n_scnum);
if (enclosing == NULL)
goto error_return;
- if (! bfd_is_abs_section (enclosing) &&
- ((bfd_vma) sym.n_value < enclosing->vma ||
- ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l
- > enclosing->vma + enclosing->_raw_size))) {
- (*_bfd_error_handler)
- (_("%s: csect `%s' not in enclosing section"),
- bfd_get_filename (abfd), name);
- bfd_set_error (bfd_error_bad_value);
- goto error_return;
- }
+ if (! bfd_is_abs_section (enclosing)
+ && ((bfd_vma) sym.n_value < enclosing->vma
+ || ((bfd_vma) sym.n_value + aux.x_csect.x_scnlen.l
+ > enclosing->vma + enclosing->size)))
+ {
+ (*_bfd_error_handler)
+ (_("%B: csect `%s' not in enclosing section"),
+ abfd, name);
+ bfd_set_error (bfd_error_bad_value);
+ goto error_return;
+ }
csect->vma = sym.n_value;
csect->filepos = (enclosing->filepos
+ sym.n_value
- enclosing->vma);
- csect->_raw_size = aux.x_csect.x_scnlen.l;
+ csect->size = aux.x_csect.x_scnlen.l;
csect->flags |= SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS;
csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp);
/* Record the enclosing section in the tdata for this new
section. */
- csect->used_by_bfd =
- (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
+ amt = sizeof (struct coff_section_tdata);
+ csect->used_by_bfd = bfd_zalloc (abfd, amt);
if (csect->used_by_bfd == NULL)
goto error_return;
- coff_section_data (abfd, csect)->tdata =
- bfd_zalloc (abfd, sizeof (struct xcoff_section_tdata));
+ amt = sizeof (struct xcoff_section_tdata);
+ coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt);
if (coff_section_data (abfd, csect)->tdata == NULL)
goto error_return;
xcoff_section_data (abfd, csect)->enclosing = enclosing;
xcoff_section_data (abfd, csect)->lineno_count =
enclosing->lineno_count;
- if (enclosing->owner == abfd) {
- struct internal_reloc *relocs;
- bfd_size_type relindx;
- struct internal_reloc *rel;
- asection **rel_csect;
-
- relocs = reloc_info[enclosing->target_index].relocs;
- relindx = xcoff_find_reloc (relocs, enclosing->reloc_count,
- csect->vma);
+ if (enclosing->owner == abfd)
+ {
+ struct internal_reloc *relocs;
+ bfd_size_type relindx;
+ struct internal_reloc *rel;
+ asection **rel_csect;
+
+ relocs = reloc_info[enclosing->target_index].relocs;
+ amt = enclosing->reloc_count;
+ relindx = xcoff_find_reloc (relocs, amt, csect->vma);
+
+ rel = relocs + relindx;
+ rel_csect = (reloc_info[enclosing->target_index].csects
+ + relindx);
+
+ csect->rel_filepos = (enclosing->rel_filepos
+ + relindx * bfd_coff_relsz (abfd));
+ while (relindx < enclosing->reloc_count
+ && *rel_csect == NULL
+ && rel->r_vaddr < csect->vma + csect->size)
+ {
- rel = relocs + relindx;
- rel_csect = (reloc_info[enclosing->target_index].csects
- + relindx);
-
- csect->rel_filepos = (enclosing->rel_filepos
- + relindx * bfd_coff_relsz (abfd));
- while (relindx < enclosing->reloc_count &&
- *rel_csect == NULL &&
- rel->r_vaddr < csect->vma + csect->_raw_size) {
-
- *rel_csect = csect;
- csect->flags |= SEC_RELOC;
- ++csect->reloc_count;
- ++relindx;
- ++rel;
- ++rel_csect;
+ *rel_csect = csect;
+ csect->flags |= SEC_RELOC;
+ ++csect->reloc_count;
+ ++relindx;
+ ++rel;
+ ++rel_csect;
+ }
}
- }
/* There are a number of other fields and section flags
which we do not bother to set. */
case XTY_LD:
/* This is a label definition. The x_scnlen field is the
- symbol index of the csect. Usually the XTY_LD symbol will
+ symbol index of the csect. Usually the XTY_LD symbol will
follow its appropriate XTY_SD symbol. The .set pseudo op can
cause the XTY_LD to not follow the XTY_SD symbol. */
{
- boolean bad;
+ bfd_boolean bad;
- bad = false;
+ bad = FALSE;
if (aux.x_csect.x_scnlen.l < 0
|| (aux.x_csect.x_scnlen.l
>= esym - (bfd_byte *) obj_coff_external_syms (abfd)))
- bad = true;
+ bad = TRUE;
if (! bad)
{
section = xcoff_data (abfd)->csects[aux.x_csect.x_scnlen.l];
if (section == NULL
|| (section->flags & SEC_HAS_CONTENTS) == 0)
- bad = true;
+ bad = TRUE;
}
if (bad)
{
(*_bfd_error_handler)
- (_("%s: misplaced XTY_LD `%s'"),
- bfd_get_filename (abfd), name);
+ (_("%B: misplaced XTY_LD `%s'"),
+ abfd, name);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
case XTY_CM:
/* This is an unitialized csect. We could base the name on
- the storage mapping class, but we don't bother except for
- an XMC_TD symbol. If this csect is externally visible,
- it is a common symbol. We put XMC_TD symbols in sections
- named .tocbss, and rely on the linker script to put that
- in the TOC area. */
+ the storage mapping class, but we don't bother except for
+ an XMC_TD symbol. If this csect is externally visible,
+ it is a common symbol. We put XMC_TD symbols in sections
+ named .tocbss, and rely on the linker script to put that
+ in the TOC area. */
if (csect != NULL)
{
/ symesz);
}
- if (aux.x_csect.x_smclas == XMC_TD) {
- /*
- * The linker script puts the .td section in the data
- * section after the .tc section
- */
- csect = bfd_make_section_anyway (abfd, ".td");
-
- } else {
+ if (aux.x_csect.x_smclas == XMC_TD)
+ {
+ /* The linker script puts the .td section in the data
+ section after the .tc section. */
+ csect = bfd_make_section_anyway (abfd, ".td");
+ }
+ else
csect = bfd_make_section_anyway (abfd, ".bss");
- }
+
if (csect == NULL)
goto error_return;
csect->vma = sym.n_value;
- csect->_raw_size = aux.x_csect.x_scnlen.l;
+ csect->size = aux.x_csect.x_scnlen.l;
csect->flags |= SEC_ALLOC;
csect->alignment_power = SMTYP_ALIGN (aux.x_csect.x_smtyp);
/* There are a number of other fields and section flags
- (bfd_byte *) obj_coff_external_syms (abfd))
/ symesz);
- csect->used_by_bfd =
- (PTR) bfd_zalloc (abfd, sizeof (struct coff_section_tdata));
+ amt = sizeof (struct coff_section_tdata);
+ csect->used_by_bfd = bfd_zalloc (abfd, amt);
if (csect->used_by_bfd == NULL)
goto error_return;
- coff_section_data (abfd, csect)->tdata =
- bfd_zalloc (abfd, sizeof (struct xcoff_section_tdata));
+ amt = sizeof (struct xcoff_section_tdata);
+ coff_section_data (abfd, csect)->tdata = bfd_zalloc (abfd, amt);
if (coff_section_data (abfd, csect)->tdata == NULL)
goto error_return;
xcoff_section_data (abfd, csect)->first_symndx = csect_index;
if (sym.n_sclass == C_EXT)
{
csect->flags |= SEC_IS_COMMON;
- csect->_raw_size = 0;
+ csect->size = 0;
section = csect;
value = aux.x_csect.x_scnlen.l;
}
}
/* Check for magic symbol names. */
- if ((smtyp == XTY_SD || smtyp == XTY_CM) &&
- (aux.x_csect.x_smclas != XMC_TC) &&
- (aux.x_csect.x_smclas != XMC_TD)) {
-
- int i = -1;
-
- if (name[0] == '_') {
- if (strcmp (name, "_text") == 0)
- i = XCOFF_SPECIAL_SECTION_TEXT;
- else if (strcmp (name, "_etext") == 0)
- i = XCOFF_SPECIAL_SECTION_ETEXT;
- else if (strcmp (name, "_data") == 0)
- i = XCOFF_SPECIAL_SECTION_DATA;
- else if (strcmp (name, "_edata") == 0)
- i = XCOFF_SPECIAL_SECTION_EDATA;
- else if (strcmp (name, "_end") == 0)
- i = XCOFF_SPECIAL_SECTION_END;
- } else if (name[0] == 'e' && strcmp (name, "end") == 0) {
- i = XCOFF_SPECIAL_SECTION_END2;
- }
-
- if (i != -1) {
- xcoff_hash_table (info)->special_sections[i] = csect;
- }
- }
+ if ((smtyp == XTY_SD || smtyp == XTY_CM)
+ && aux.x_csect.x_smclas != XMC_TC
+ && aux.x_csect.x_smclas != XMC_TD)
+ {
+ int i = -1;
+
+ if (name[0] == '_')
+ {
+ if (strcmp (name, "_text") == 0)
+ i = XCOFF_SPECIAL_SECTION_TEXT;
+ else if (strcmp (name, "_etext") == 0)
+ i = XCOFF_SPECIAL_SECTION_ETEXT;
+ else if (strcmp (name, "_data") == 0)
+ i = XCOFF_SPECIAL_SECTION_DATA;
+ else if (strcmp (name, "_edata") == 0)
+ i = XCOFF_SPECIAL_SECTION_EDATA;
+ else if (strcmp (name, "_end") == 0)
+ i = XCOFF_SPECIAL_SECTION_END;
+ }
+ else if (name[0] == 'e' && strcmp (name, "end") == 0)
+ i = XCOFF_SPECIAL_SECTION_END2;
+
+ if (i != -1)
+ xcoff_hash_table (info)->special_sections[i] = csect;
+ }
/* Now we have enough information to add the symbol to the
- linker hash table. */
+ linker hash table. */
if (sym.n_sclass == C_EXT)
{
- boolean copy;
+ bfd_boolean copy;
BFD_ASSERT (section != NULL);
/* We must copy the name into memory if we got it from the
- syment itself, rather than the string table. */
+ syment itself, rather than the string table. */
copy = default_copy;
if (sym._n._n_n._n_zeroes != 0
|| sym._n._n_n._n_offset == 0)
- copy = true;
+ copy = TRUE;
/* The AIX linker appears to only detect multiple symbol
definitions when there is a reference to the symbol. If
shared object, which will cause symbol redefinitions,
although this is an easier case to detect. */
- if (info->hash->creator == abfd->xvec)
+ if (info->hash->creator == abfd->xvec)
{
if (! bfd_is_und_section (section))
*sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info),
- name, true, copy, false);
+ name, TRUE, copy, FALSE);
else
+ /* Make a copy of the symbol name to prevent problems with
+ merging symbols. */
*sym_hash = ((struct xcoff_link_hash_entry *)
bfd_wrapped_link_hash_lookup (abfd, info, name,
- true, copy, false));
+ TRUE, TRUE, FALSE));
+
if (*sym_hash == NULL)
goto error_return;
if (((*sym_hash)->root.type == bfd_link_hash_defined
& DYNAMIC) == 0))
{
/* The new symbol is from a shared library, and
- either the existing symbol is not global
- linkage code or this symbol is global linkage
- code. If the existing symbol is global
- linkage code and the new symbol is not, then
- we want to use the new symbol. */
+ either the existing symbol is not global
+ linkage code or this symbol is global linkage
+ code. If the existing symbol is global
+ linkage code and the new symbol is not, then
+ we want to use the new symbol. */
section = bfd_und_section_ptr;
value = 0;
}
& DYNAMIC) != 0)
{
/* The existing symbol is from a shared library.
- Replace it. */
+ Replace it. */
(*sym_hash)->root.type = bfd_link_hash_undefined;
(*sym_hash)->root.u.undef.abfd =
(*sym_hash)->root.u.def.section->owner;
else if (abfd->my_archive != NULL)
{
/* This is a redefinition in an object contained
- in an archive. Just ignore it. See the
- comment above. */
+ in an archive. Just ignore it. See the
+ comment above. */
section = bfd_und_section_ptr;
value = 0;
}
- else if ((*sym_hash)->root.next != NULL
+ else if ((*sym_hash)->root.u.undef.next != NULL
|| info->hash->undefs_tail == &(*sym_hash)->root)
{
/* This symbol has been referenced. In this
- case, we just continue and permit the
- multiple definition error. See the comment
- above about the behaviour of the AIX linker. */
+ case, we just continue and permit the
+ multiple definition error. See the comment
+ above about the behaviour of the AIX linker. */
}
else if ((*sym_hash)->smclas == aux.x_csect.x_smclas)
{
/* The symbols are both csects of the same
- class. There is at least a chance that this
- is a semi-legitimate redefinition. */
+ class. There is at least a chance that this
+ is a semi-legitimate redefinition. */
section = bfd_und_section_ptr;
value = 0;
(*sym_hash)->flags |= XCOFF_MULTIPLY_DEFINED;
not an error. */
if (! ((*info->callbacks->multiple_definition)
(info, (*sym_hash)->root.root.string,
- (bfd *) NULL, (asection *) NULL, 0,
+ NULL, NULL, (bfd_vma) 0,
(*sym_hash)->root.u.def.section->owner,
(*sym_hash)->root.u.def.section,
(*sym_hash)->root.u.def.value)))
last_real->next = NULL;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, name, flags, section, value,
- (const char *) NULL, copy, true,
+ NULL, copy, TRUE,
(struct bfd_link_hash_entry **) sym_hash)))
goto error_return;
last_real->next = first_csect;
{
if ((*sym_hash)->root.type != bfd_link_hash_common
|| (*sym_hash)->root.u.c.p->section != csect)
- {
- /* We don't need the common csect we just created. */
- csect->_raw_size = 0;
- }
+ /* We don't need the common csect we just created. */
+ csect->size = 0;
else
- {
- (*sym_hash)->root.u.c.p->alignment_power
- = csect->alignment_power;
- }
+ (*sym_hash)->root.u.c.p->alignment_power
+ = csect->alignment_power;
}
- if (info->hash->creator == abfd->xvec)
+ if (info->hash->creator == abfd->xvec)
{
int flag;
the .debug section, since we need to read it below in
bfd_xcoff_size_dynamic_sections. */
if (strcmp (bfd_get_section_name (abfd, o), ".debug") != 0)
- o->_raw_size = 0;
+ o->size = 0;
o->lineno_count = 0;
if ((o->flags & SEC_RELOC) != 0)
for (i = 0; i < o->reloc_count; i++, rel++, rel_csect++)
{
-
if (*rel_csect == NULL)
{
(*_bfd_error_handler)
- (_("%s: reloc %s:%d not in csect"),
- bfd_get_filename (abfd), o->name, i);
+ (_("%B: reloc %s:%d not in csect"),
+ abfd, o->name, i);
bfd_set_error (bfd_error_bad_value);
goto error_return;
}
/* We identify all symbols which are called, so that we
can create glue code for calls to functions imported
from dynamic objects. */
- if (info->hash->creator == abfd->xvec
+ if (info->hash->creator == abfd->xvec
&& *rel_csect != bfd_und_section_ptr
&& (rel->r_type == R_BR
|| rel->r_type == R_RBR)
h = obj_xcoff_sym_hashes (abfd)[rel->r_symndx];
h->flags |= XCOFF_CALLED;
/* If the symbol name starts with a period, it is
- the code of a function. If the symbol is
- currently undefined, then add an undefined symbol
- for the function descriptor. This should do no
- harm, because any regular object that defines the
- function should also define the function
- descriptor. It helps, because it means that we
- will identify the function descriptor with a
- dynamic object if a dynamic object defines it. */
+ the code of a function. If the symbol is
+ currently undefined, then add an undefined symbol
+ for the function descriptor. This should do no
+ harm, because any regular object that defines the
+ function should also define the function
+ descriptor. It helps, because it means that we
+ will identify the function descriptor with a
+ dynamic object if a dynamic object defines it. */
if (h->root.root.string[0] == '.'
&& h->descriptor == NULL)
{
struct xcoff_link_hash_entry *hds;
+ struct bfd_link_hash_entry *bh;
hds = xcoff_link_hash_lookup (xcoff_hash_table (info),
h->root.root.string + 1,
- true, false, true);
+ TRUE, FALSE, TRUE);
if (hds == NULL)
goto error_return;
if (hds->root.type == bfd_link_hash_new)
{
+ bh = &hds->root;
if (! (_bfd_generic_link_add_one_symbol
(info, abfd, hds->root.root.string,
(flagword) 0, bfd_und_section_ptr,
- (bfd_vma) 0, (const char *) NULL, false,
- true,
- (struct bfd_link_hash_entry **) &hds)))
+ (bfd_vma) 0, NULL, FALSE,
+ TRUE, &bh)))
goto error_return;
+ hds = (struct xcoff_link_hash_entry *) bh;
}
hds->flags |= XCOFF_DESCRIPTOR;
BFD_ASSERT ((hds->flags & XCOFF_CALLED) == 0
}
/* Free up the line numbers. FIXME: We could cache these
- somewhere for the final link, to avoid reading them again. */
+ somewhere for the final link, to avoid reading them again. */
if (reloc_info[o->target_index].linenos != NULL)
{
free (reloc_info[o->target_index].linenos);
obj_coff_keep_syms (abfd) = keep_syms;
- return true;
+ return TRUE;
error_return:
if (reloc_info != NULL)
if (reloc_info[o->target_index].linenos != NULL)
free (reloc_info[o->target_index].linenos);
}
- free (reloc_info);
+ free (reloc_info);
}
obj_coff_keep_syms (abfd) = keep_syms;
- return false;
+ return FALSE;
}
#undef N_TMASK
#undef N_BTSHFT
-/* This function is used to add symbols from a dynamic object to the
- global symbol table. */
+/* Add symbols from an XCOFF object file. */
+
+static bfd_boolean
+xcoff_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
+{
+ if (! _bfd_coff_get_external_symbols (abfd))
+ return FALSE;
+ if (! xcoff_link_add_symbols (abfd, info))
+ return FALSE;
+ if (! info->keep_memory)
+ {
+ if (! _bfd_coff_free_symbols (abfd))
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/* Look through the loader symbols to see if this dynamic object
+ should be included in the link. The native linker uses the loader
+ symbols, not the normal symbol table, so we do too. */
-static boolean
-xcoff_link_add_dynamic_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+static bfd_boolean
+xcoff_link_check_dynamic_ar_symbols (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean *pneeded)
{
asection *lsec;
bfd_byte *contents;
struct internal_ldhdr ldhdr;
const char *strings;
bfd_byte *elsym, *elsymend;
- struct xcoff_import_file *n;
- const char *bname;
- const char *mname;
- const char *s;
- unsigned int c;
- struct xcoff_import_file **pp;
- /* We can only handle a dynamic object if we are generating an XCOFF
- output file. */
- if (info->hash->creator != abfd->xvec)
- {
- (*_bfd_error_handler)
- (_("%s: XCOFF shared object when not producing XCOFF output"),
- bfd_get_filename (abfd));
- bfd_set_error (bfd_error_invalid_operation);
- return false;
- }
-
- /* The symbols we use from a dynamic object are not the symbols in
- the normal symbol table, but, rather, the symbols in the export
- table. If there is a global symbol in a dynamic object which is
- not in the export table, the loader will not be able to find it,
- so we don't want to find it either. Also, on AIX 4.1.3, shr.o in
- libc.a has symbols in the export table which are not in the
- symbol table. */
+ *pneeded = FALSE;
- /* Read in the .loader section. FIXME: We should really use the
- o_snloader field in the a.out header, rather than grabbing the
- section by name. */
lsec = bfd_get_section_by_name (abfd, ".loader");
if (lsec == NULL)
- {
- (*_bfd_error_handler)
- (_("%s: dynamic object with no .loader section"),
- bfd_get_filename (abfd));
- bfd_set_error (bfd_error_no_symbols);
- return false;
- }
-
+ /* There are no symbols, so don't try to include it. */
+ return TRUE;
if (! xcoff_get_section_contents (abfd, lsec))
- return false;
+ return FALSE;
contents = coff_section_data (abfd, lsec)->contents;
- /* Remove the sections from this object, so that they do not get
- included in the link. */
- abfd->sections = NULL;
-
bfd_xcoff_swap_ldhdr_in (abfd, contents, &ldhdr);
strings = (char *) contents + ldhdr.l_stoff;
- elsym = contents + bfd_xcoff_loader_symbol_offset(abfd, &ldhdr);
-
- elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+ elsym = contents + bfd_xcoff_loader_symbol_offset (abfd, &ldhdr);
- for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz(abfd))
+ elsymend = elsym + ldhdr.l_nsyms * bfd_xcoff_ldsymsz (abfd);
+ for (; elsym < elsymend; elsym += bfd_xcoff_ldsymsz (abfd))
{
struct internal_ldsym ldsym;
char nambuf[SYMNMLEN + 1];
const char *name;
- struct xcoff_link_hash_entry *h;
+ struct bfd_link_hash_entry *h;
bfd_xcoff_swap_ldsym_in (abfd, elsym, &ldsym);
name = nambuf;
}
- /* Normally we could not call xcoff_link_hash_lookup in an add
- symbols routine, since we might not be using an XCOFF hash
- table. However, we verified above that we are using an XCOFF
- hash table. */
-
- h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true,
- true, true);
- if (h == NULL)
- return false;
-
- h->flags |= XCOFF_DEF_DYNAMIC;
-
- /* If the symbol is undefined, and the BFD it was found in is
- not a dynamic object, change the BFD to this dynamic object,
- so that we can get the correct import file ID. */
- if ((h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- && (h->root.u.undef.abfd == NULL
- || (h->root.u.undef.abfd->flags & DYNAMIC) == 0))
- h->root.u.undef.abfd = abfd;
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
- if (h->root.type == bfd_link_hash_new)
+ /* We are only interested in symbols that are currently
+ undefined. At this point we know that we are using an XCOFF
+ hash table. */
+ if (h != NULL
+ && h->type == bfd_link_hash_undefined
+ && (((struct xcoff_link_hash_entry *) h)->flags
+ & XCOFF_DEF_DYNAMIC) == 0)
{
- h->root.type = bfd_link_hash_undefined;
- h->root.u.undef.abfd = abfd;
- /* We do not want to add this to the undefined symbol list. */
+ if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+ return FALSE;
+ *pneeded = TRUE;
+ return TRUE;
}
+ }
- if (h->smclas == XMC_UA
- || h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- h->smclas = ldsym.l_smclas;
+ /* We do not need this shared object. */
+ if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
+ {
+ free (coff_section_data (abfd, lsec)->contents);
+ coff_section_data (abfd, lsec)->contents = NULL;
+ }
- /* Unless this is an XMC_XO symbol, we don't bother to actually
- define it, since we don't have a section to put it in anyhow.
- Instead, the relocation routines handle the DEF_DYNAMIC flag
- correctly. */
+ return TRUE;
+}
- if (h->smclas == XMC_XO
- && (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak))
- {
- /* This symbol has an absolute value. */
- h->root.type = bfd_link_hash_defined;
- h->root.u.def.section = bfd_abs_section_ptr;
- h->root.u.def.value = ldsym.l_value;
- }
+/* Look through the symbols to see if this object file should be
+ included in the link. */
- /* If this symbol defines a function descriptor, then it
- implicitly defines the function code as well. */
- if (h->smclas == XMC_DS
- || (h->smclas == XMC_XO && name[0] != '.'))
- h->flags |= XCOFF_DESCRIPTOR;
- if ((h->flags & XCOFF_DESCRIPTOR) != 0)
- {
- struct xcoff_link_hash_entry *hds;
+static bfd_boolean
+xcoff_link_check_ar_symbols (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean *pneeded)
+{
+ bfd_size_type symesz;
+ bfd_byte *esym;
+ bfd_byte *esym_end;
- hds = h->descriptor;
- if (hds == NULL)
- {
- char *dsnm;
+ *pneeded = FALSE;
- dsnm = bfd_malloc (strlen (name) + 2);
- if (dsnm == NULL)
- return false;
- dsnm[0] = '.';
- strcpy (dsnm + 1, name);
- hds = xcoff_link_hash_lookup (xcoff_hash_table (info), dsnm,
- true, true, true);
- free (dsnm);
- if (hds == NULL)
- return false;
+ if ((abfd->flags & DYNAMIC) != 0
+ && ! info->static_link
+ && info->hash->creator == abfd->xvec)
+ return xcoff_link_check_dynamic_ar_symbols (abfd, info, pneeded);
- if (hds->root.type == bfd_link_hash_new)
- {
- hds->root.type = bfd_link_hash_undefined;
- hds->root.u.undef.abfd = abfd;
- /* We do not want to add this to the undefined
- symbol list. */
- }
+ symesz = bfd_coff_symesz (abfd);
+ esym = (bfd_byte *) obj_coff_external_syms (abfd);
+ esym_end = esym + obj_raw_syment_count (abfd) * symesz;
+ while (esym < esym_end)
+ {
+ struct internal_syment sym;
- hds->descriptor = h;
- h->descriptor = hds;
- }
+ bfd_coff_swap_sym_in (abfd, (void *) esym, (void *) &sym);
- hds->flags |= XCOFF_DEF_DYNAMIC;
- if (hds->smclas == XMC_UA)
- hds->smclas = XMC_PR;
+ if (sym.n_sclass == C_EXT && sym.n_scnum != N_UNDEF)
+ {
+ const char *name;
+ char buf[SYMNMLEN + 1];
+ struct bfd_link_hash_entry *h;
- /* An absolute symbol appears to actually define code, not a
- function descriptor. This is how some math functions are
- implemented on AIX 4.1. */
- if (h->smclas == XMC_XO
- && (hds->root.type == bfd_link_hash_undefined
- || hds->root.type == bfd_link_hash_undefweak))
+ /* This symbol is externally visible, and is defined by this
+ object file. */
+ name = _bfd_coff_internal_syment_name (abfd, &sym, buf);
+
+ if (name == NULL)
+ return FALSE;
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
+
+ /* We are only interested in symbols that are currently
+ undefined. If a symbol is currently known to be common,
+ XCOFF linkers do not bring in an object file which
+ defines it. We also don't bring in symbols to satisfy
+ undefined references in shared objects. */
+ if (h != NULL
+ && h->type == bfd_link_hash_undefined
+ && (info->hash->creator != abfd->xvec
+ || (((struct xcoff_link_hash_entry *) h)->flags
+ & XCOFF_DEF_DYNAMIC) == 0))
{
- hds->smclas = XMC_XO;
- hds->root.type = bfd_link_hash_defined;
- hds->root.u.def.section = bfd_abs_section_ptr;
- hds->root.u.def.value = ldsym.l_value;
+ if (! (*info->callbacks->add_archive_element) (info, abfd, name))
+ return FALSE;
+ *pneeded = TRUE;
+ return TRUE;
}
}
- }
- if (contents != NULL && ! coff_section_data (abfd, lsec)->keep_contents)
- {
- free (coff_section_data (abfd, lsec)->contents);
- coff_section_data (abfd, lsec)->contents = NULL;
+ esym += (sym.n_numaux + 1) * symesz;
}
- /* Record this file in the import files. */
+ /* We do not need this object file. */
+ return TRUE;
+}
- n = ((struct xcoff_import_file *)
- bfd_alloc (abfd, sizeof (struct xcoff_import_file)));
- if (n == NULL)
- return false;
- n->next = NULL;
+/* Check a single archive element to see if we need to include it in
+ the link. *PNEEDED is set according to whether this element is
+ needed in the link or not. This is called via
+ _bfd_generic_link_add_archive_symbols. */
- /* For some reason, the path entry in the import file list for a
- shared object appears to always be empty. The file name is the
- base name. */
- n->path = "";
- if (abfd->my_archive == NULL)
+static bfd_boolean
+xcoff_link_check_archive_element (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean *pneeded)
+{
+ if (! _bfd_coff_get_external_symbols (abfd))
+ return FALSE;
+
+ if (! xcoff_link_check_ar_symbols (abfd, info, pneeded))
+ return FALSE;
+
+ if (*pneeded)
{
- bname = bfd_get_filename (abfd);
- mname = "";
+ if (! xcoff_link_add_symbols (abfd, info))
+ return FALSE;
}
- else
+
+ if (! info->keep_memory || ! *pneeded)
{
- bname = bfd_get_filename (abfd->my_archive);
- mname = bfd_get_filename (abfd);
+ if (! _bfd_coff_free_symbols (abfd))
+ return FALSE;
}
- s = strrchr (bname, '/');
- if (s != NULL)
- bname = s + 1;
- n->file = bname;
- n->member = mname;
- /* We start c at 1 because the first import file number is reserved
- for LIBPATH. */
- for (pp = &xcoff_hash_table (info)->imports, c = 1;
- *pp != NULL;
- pp = &(*pp)->next, ++c)
- ;
- *pp = n;
+ return TRUE;
+}
- xcoff_data (abfd)->import_file_id = c;
+/* Given an XCOFF BFD, add symbols to the global hash table as
+ appropriate. */
+
+bfd_boolean
+_bfd_xcoff_bfd_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
+{
+ switch (bfd_get_format (abfd))
+ {
+ case bfd_object:
+ return xcoff_link_add_object_symbols (abfd, info);
+
+ case bfd_archive:
+ /* If the archive has a map, do the usual search. We then need
+ to check the archive for dynamic objects, because they may not
+ appear in the archive map even though they should, perhaps, be
+ included. If the archive has no map, we just consider each object
+ file in turn, since that apparently is what the AIX native linker
+ does. */
+ if (bfd_has_map (abfd))
+ {
+ if (! (_bfd_generic_link_add_archive_symbols
+ (abfd, info, xcoff_link_check_archive_element)))
+ return FALSE;
+ }
- return true;
+ {
+ bfd *member;
+
+ member = bfd_openr_next_archived_file (abfd, NULL);
+ while (member != NULL)
+ {
+ if (bfd_check_format (member, bfd_object)
+ && (info->hash->creator == member->xvec)
+ && (! bfd_has_map (abfd) || (member->flags & DYNAMIC) != 0))
+ {
+ bfd_boolean needed;
+
+ if (! xcoff_link_check_archive_element (member, info,
+ &needed))
+ return FALSE;
+ if (needed)
+ member->archive_pass = -1;
+ }
+ member = bfd_openr_next_archived_file (abfd, member);
+ }
+ }
+
+ return TRUE;
+
+ default:
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
}
\f
-/* Routines that are called after all the input files have been
- handled, but before the sections are laid out in memory. */
-
/* Mark a symbol as not being garbage, including the section in which
it is defined. */
-static INLINE boolean
-xcoff_mark_symbol (info, h)
- struct bfd_link_info *info;
- struct xcoff_link_hash_entry *h;
+static inline bfd_boolean
+xcoff_mark_symbol (struct bfd_link_info *info, struct xcoff_link_hash_entry *h)
{
-
if ((h->flags & XCOFF_MARK) != 0)
- return true;
+ return TRUE;
h->flags |= XCOFF_MARK;
if (h->root.type == bfd_link_hash_defined
&& (hsec->flags & SEC_MARK) == 0)
{
if (! xcoff_mark (info, hsec))
- return false;
+ return FALSE;
}
}
&& (h->toc_section->flags & SEC_MARK) == 0)
{
if (! xcoff_mark (info, h->toc_section))
- return false;
+ return FALSE;
}
- return true;
+ return TRUE;
}
/* The mark phase of garbage collection. For a given section, mark
the number of relocs which need to be copied into the .loader
section. */
-static boolean
-xcoff_mark (info, sec)
- struct bfd_link_info *info;
- asection *sec;
+static bfd_boolean
+xcoff_mark (struct bfd_link_info *info, asection *sec)
{
if (bfd_is_abs_section (sec)
|| (sec->flags & SEC_MARK) != 0)
- return true;
+ return TRUE;
sec->flags |= SEC_MARK;
&& coff_section_data (sec->owner, sec) != NULL
&& xcoff_section_data (sec->owner, sec) != NULL)
{
- register struct xcoff_link_hash_entry **hp, **hpend;
+ struct xcoff_link_hash_entry **hp, **hpend;
struct internal_reloc *rel, *relend;
/* Mark all the symbols in this section. */
-
hp = (obj_xcoff_sym_hashes (sec->owner)
+ xcoff_section_data (sec->owner, sec)->first_symndx);
hpend = (obj_xcoff_sym_hashes (sec->owner)
+ xcoff_section_data (sec->owner, sec)->last_symndx);
for (; hp < hpend; hp++)
{
- register struct xcoff_link_hash_entry *h;
+ struct xcoff_link_hash_entry *h;
h = *hp;
if (h != NULL
&& (h->flags & XCOFF_MARK) == 0)
{
if (! xcoff_mark_symbol (info, h))
- return false;
+ return FALSE;
}
}
/* Look through the section relocs. */
-
if ((sec->flags & SEC_RELOC) != 0
&& sec->reloc_count > 0)
{
- rel = xcoff_read_internal_relocs (sec->owner, sec, true,
- (bfd_byte *) NULL, false,
- (struct internal_reloc *) NULL);
+ rel = xcoff_read_internal_relocs (sec->owner, sec, TRUE,
+ NULL, FALSE, NULL);
if (rel == NULL)
- return false;
+ return FALSE;
relend = rel + sec->reloc_count;
for (; rel < relend; rel++)
{
&& (h->flags & XCOFF_MARK) == 0)
{
if (! xcoff_mark_symbol (info, h))
- return false;
+ return FALSE;
}
rsec = xcoff_data (sec->owner)->csects[rel->r_symndx];
&& (rsec->flags & SEC_MARK) == 0)
{
if (! xcoff_mark (info, rsec))
- return false;
+ return FALSE;
}
/* See if this reloc needs to be copied into the .loader
- section. */
+ section. */
switch (rel->r_type)
{
default:
}
}
- return true;
+ return TRUE;
}
+/* Routines that are called after all the input files have been
+ handled, but before the sections are laid out in memory. */
+
/* The sweep phase of garbage collection. Remove all garbage
sections. */
static void
-xcoff_sweep (info)
- struct bfd_link_info *info;
+xcoff_sweep (struct bfd_link_info *info)
{
bfd *sub;
if ((o->flags & SEC_MARK) == 0)
{
/* Keep all sections from non-XCOFF input files. Keep
- special sections. Keep .debug sections for the
- moment. */
+ special sections. Keep .debug sections for the
+ moment. */
if (sub->xvec != info->hash->creator
|| o == xcoff_hash_table (info)->debug_section
|| o == xcoff_hash_table (info)->loader_section
o->flags |= SEC_MARK;
else
{
- o->_raw_size = 0;
+ o->size = 0;
o->reloc_count = 0;
o->lineno_count = 0;
}
/* Record the number of elements in a set. This is used to output the
correct csect length. */
-boolean
-bfd_xcoff_link_record_set (output_bfd, info, harg, size)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct bfd_link_hash_entry *harg;
- bfd_size_type size;
+bfd_boolean
+bfd_xcoff_link_record_set (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct bfd_link_hash_entry *harg,
+ bfd_size_type size)
{
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
struct xcoff_link_size_list *n;
+ bfd_size_type amt;
if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
- return true;
+ return TRUE;
/* This will hardly ever be called. I don't want to burn four bytes
per global symbol, so instead the size is kept on a linked list
attached to the hash table. */
-
- n = ((struct xcoff_link_size_list *)
- bfd_alloc (output_bfd, sizeof (struct xcoff_link_size_list)));
+ amt = sizeof (* n);
+ n = bfd_alloc (output_bfd, amt);
if (n == NULL)
- return false;
+ return FALSE;
n->next = xcoff_hash_table (info)->size_list;
n->h = h;
n->size = size;
h->flags |= XCOFF_HAS_SIZE;
- return true;
+ return TRUE;
}
/* Import a symbol. */
-boolean
-bfd_xcoff_import_symbol (output_bfd, info, harg, val, imppath, impfile,
- impmember)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct bfd_link_hash_entry *harg;
- bfd_vma val;
- const char *imppath;
- const char *impfile;
- const char *impmember;
+bfd_boolean
+bfd_xcoff_import_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct bfd_link_hash_entry *harg,
+ bfd_vma val,
+ const char *imppath,
+ const char *impfile,
+ const char *impmember,
+ unsigned int syscall_flag)
{
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
- return true;
+ return TRUE;
/* A symbol name which starts with a period is the code for a
function. If the symbol is undefined, then add an undefined
{
hds = xcoff_link_hash_lookup (xcoff_hash_table (info),
h->root.root.string + 1,
- true, false, true);
+ TRUE, FALSE, TRUE);
if (hds == NULL)
- return false;
+ return FALSE;
if (hds->root.type == bfd_link_hash_new)
{
hds->root.type = bfd_link_hash_undefined;
}
/* Now, if the descriptor is undefined, import the descriptor
- rather than the symbol we were told to import. FIXME: Is
- this correct in all cases? */
+ rather than the symbol we were told to import. FIXME: Is
+ this correct in all cases? */
if (hds->root.type == bfd_link_hash_undefined)
h = hds;
}
- h->flags |= XCOFF_IMPORT;
+ h->flags |= (XCOFF_IMPORT | syscall_flag);
if (val != (bfd_vma) -1)
{
(info, h->root.root.string, h->root.u.def.section->owner,
h->root.u.def.section, h->root.u.def.value,
output_bfd, bfd_abs_section_ptr, val)))
- return false;
+ return FALSE;
}
h->root.type = bfd_link_hash_defined;
struct xcoff_import_file **pp;
/* We start c at 1 because the first entry in the import list is
- reserved for the library search path. */
+ reserved for the library search path. */
for (pp = &xcoff_hash_table (info)->imports, c = 1;
*pp != NULL;
pp = &(*pp)->next, ++c)
if (*pp == NULL)
{
struct xcoff_import_file *n;
+ bfd_size_type amt = sizeof (* n);
- n = ((struct xcoff_import_file *)
- bfd_alloc (output_bfd, sizeof (struct xcoff_import_file)));
+ n = bfd_alloc (output_bfd, amt);
if (n == NULL)
- return false;
+ return FALSE;
n->next = NULL;
n->path = imppath;
n->file = impfile;
h->ldindx = c;
}
- return true;
+ return TRUE;
}
/* Export a symbol. */
-boolean
-bfd_xcoff_export_symbol (output_bfd, info, harg, syscall)
- bfd *output_bfd;
- struct bfd_link_info *info;
- struct bfd_link_hash_entry *harg;
- boolean syscall ATTRIBUTE_UNUSED;
+bfd_boolean
+bfd_xcoff_export_symbol (bfd *output_bfd,
+ struct bfd_link_info *info,
+ struct bfd_link_hash_entry *harg)
{
struct xcoff_link_hash_entry *h = (struct xcoff_link_hash_entry *) harg;
if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
- return true;
+ return TRUE;
h->flags |= XCOFF_EXPORT;
{
char *fnname;
struct xcoff_link_hash_entry *hfn;
+ bfd_size_type amt = strlen (h->root.root.string) + 2;
- fnname = (char *) bfd_malloc (strlen (h->root.root.string) + 2);
+ fnname = bfd_malloc (amt);
if (fnname == NULL)
- return false;
+ return FALSE;
fnname[0] = '.';
strcpy (fnname + 1, h->root.root.string);
hfn = xcoff_link_hash_lookup (xcoff_hash_table (info),
- fnname, false, false, true);
+ fnname, FALSE, FALSE, TRUE);
free (fnname);
if (hfn != NULL
&& hfn->smclas == XMC_PR
/* Make sure we don't garbage collect this symbol. */
if (! xcoff_mark_symbol (info, h))
- return false;
+ return FALSE;
/* If this is a function descriptor, make sure we don't garbage
collect the associated function code. We normally don't have to
if ((h->flags & XCOFF_DESCRIPTOR) != 0)
{
if (! xcoff_mark_symbol (info, h->descriptor))
- return false;
+ return FALSE;
}
- return true;
+ return TRUE;
}
/* Count a reloc against a symbol. This is called for relocs
generated by the linker script, typically for global constructors
and destructors. */
-boolean
-bfd_xcoff_link_count_reloc (output_bfd, info, name)
- bfd *output_bfd;
- struct bfd_link_info *info;
- const char *name;
+bfd_boolean
+bfd_xcoff_link_count_reloc (bfd *output_bfd,
+ struct bfd_link_info *info,
+ const char *name)
{
struct xcoff_link_hash_entry *h;
if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
- return true;
+ return TRUE;
h = ((struct xcoff_link_hash_entry *)
- bfd_wrapped_link_hash_lookup (output_bfd, info, name, false, false,
- false));
+ bfd_wrapped_link_hash_lookup (output_bfd, info, name, FALSE, FALSE,
+ FALSE));
if (h == NULL)
{
(*_bfd_error_handler) (_("%s: no such symbol"), name);
bfd_set_error (bfd_error_no_symbols);
- return false;
+ return FALSE;
}
h->flags |= XCOFF_REF_REGULAR | XCOFF_LDREL;
/* Mark the symbol to avoid garbage collection. */
if (! xcoff_mark_symbol (info, h))
- return false;
+ return FALSE;
- return true;
+ return TRUE;
}
/* This function is called for each symbol to which the linker script
assigns a value. */
-boolean
-bfd_xcoff_record_link_assignment (output_bfd, info, name)
- bfd *output_bfd;
- struct bfd_link_info *info;
- const char *name;
+bfd_boolean
+bfd_xcoff_record_link_assignment (bfd *output_bfd,
+ struct bfd_link_info *info,
+ const char *name)
{
struct xcoff_link_hash_entry *h;
if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
- return true;
+ return TRUE;
- h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, true, true,
- false);
+ h = xcoff_link_hash_lookup (xcoff_hash_table (info), name, TRUE, TRUE,
+ FALSE);
if (h == NULL)
- return false;
+ return FALSE;
h->flags |= XCOFF_DEF_REGULAR;
- return true;
+ return TRUE;
}
-/* Build the .loader section. This is called by the XCOFF linker
- emulation before_allocation routine. We must set the size of the
- .loader section before the linker lays out the output file.
- LIBPATH is the library path to search for shared objects; this is
- normally built from the -L arguments passed to the linker. ENTRY
- is the name of the entry point symbol (the -e linker option).
- FILE_ALIGN is the alignment to use for sections within the file
- (the -H linker option). MAXSTACK is the maximum stack size (the
- -bmaxstack linker option). MAXDATA is the maximum data size (the
- -bmaxdata linker option). GC is whether to do garbage collection
- (the -bgc linker option). MODTYPE is the module type (the
- -bmodtype linker option). TEXTRO is whether the text section must
- be read only (the -btextro linker option). EXPORT_DEFINEDS is
- whether all defined symbols should be exported (the -unix linker
- option). SPECIAL_SECTIONS is set by this routine to csects with
- magic names like _end. */
+/* Add a symbol to the .loader symbols, if necessary. */
-boolean
-bfd_xcoff_size_dynamic_sections (output_bfd, info, libpath, entry,
- file_align, maxstack, maxdata, gc,
- modtype, textro, export_defineds,
- special_sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- const char *libpath;
- const char *entry;
- unsigned long file_align;
- unsigned long maxstack;
- unsigned long maxdata;
- boolean gc;
- int modtype;
- boolean textro;
- boolean export_defineds;
- asection **special_sections;
+static bfd_boolean
+xcoff_build_ldsyms (struct xcoff_link_hash_entry *h, void * p)
{
- struct xcoff_link_hash_entry *hentry;
- asection *lsec;
- struct xcoff_loader_info ldinfo;
- int i;
- size_t impsize, impcount;
- struct xcoff_import_file *fl;
- struct internal_ldhdr *ldhdr;
- bfd_size_type stoff;
- register char *out;
- asection *sec;
- bfd *sub;
- struct bfd_strtab_hash *debug_strtab;
- bfd_byte *debug_contents = NULL;
-
- if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour) {
-
- for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
- special_sections[i] = NULL;
- return true;
- }
-
- ldinfo.failed = false;
- ldinfo.output_bfd = output_bfd;
- ldinfo.info = info;
- ldinfo.export_defineds = export_defineds;
- ldinfo.ldsym_count = 0;
- ldinfo.string_size = 0;
- ldinfo.strings = NULL;
- ldinfo.string_alc = 0;
-
- xcoff_data (output_bfd)->maxstack = maxstack;
- xcoff_data (output_bfd)->maxdata = maxdata;
- xcoff_data (output_bfd)->modtype = modtype;
-
- xcoff_hash_table (info)->file_align = file_align;
- xcoff_hash_table (info)->textro = textro;
-
- if (entry == NULL) {
- hentry = NULL;
- } else {
- hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry,
- false, false, true);
- if (hentry != NULL)
- hentry->flags |= XCOFF_ENTRY;
- }
+ struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p;
+ bfd_size_type amt;
- /* __rtinit */
- if (info->init_function || info->fini_function) {
- struct xcoff_link_hash_entry *hrtinit;
- struct internal_ldsym *ldsym;
-
- hrtinit = xcoff_link_hash_lookup (xcoff_hash_table (info),
- "__rtinit",
- false, false, true);
- if (hrtinit != NULL) {
- xcoff_mark_symbol (info, hrtinit);
- hrtinit->flags |= (XCOFF_DEF_REGULAR | XCOFF_RTINIT);
- } else {
- (*_bfd_error_handler)
- (_("error: undefined symbol __rtinit"));
-
- return false;
- }
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct xcoff_link_hash_entry *) h->root.u.i.link;
- /*
- *
- * __rtinit initalized here
- * Some information, like the location of the .initfini seciton will
- * be filled in later
- *
- * name or offset taken case of below with bfd_xcoff_put_ldsymbol_name
- */
- ldsym = (struct internal_ldsym *)
- bfd_malloc(sizeof (struct internal_ldsym));
-
- ldsym->l_value = 0; /* will be filled in later */
- ldsym->l_scnum = 2; /* data section */
- ldsym->l_smtype = XTY_SD; /* csect section definition */
- ldsym->l_smclas = 5; /* .rw */
- ldsym->l_ifile = 0; /* special system loader symbol */
- ldsym->l_parm = 0; /* NA */
-
- /*
- * Force __rtinit to be the first symbol in the loader symbol table
- * See xcoff_build_ldsyms
- *
- * The first 3 symbol table indices are reserved to indicate the data,
- * text and bss sections.
- */
- BFD_ASSERT (0 == ldinfo.ldsym_count);
-
- hrtinit->ldindx = 3;
- ldinfo.ldsym_count = 1;
- hrtinit->ldsym = ldsym;
-
- if (false == bfd_xcoff_put_ldsymbol_name (ldinfo.output_bfd, &ldinfo,
- hrtinit->ldsym,
- hrtinit->root.root.string)) {
- return false;
- }
+ /* __rtinit, this symbol has special handling. */
+ if (h->flags & XCOFF_RTINIT)
+ return TRUE;
- /*
- * This symbol is written out by xcoff_write_global_symbol
- * Set stuff up so xcoff_write_global_symbol logic works.
- */
- hrtinit->flags |= XCOFF_DEF_REGULAR | XCOFF_MARK;
- hrtinit->root.type = bfd_link_hash_defined;
- hrtinit->root.u.def.value = 0;
- }
+ /* If this is a final link, and the symbol was defined as a common
+ symbol in a regular object file, and there was no definition in
+ any dynamic object, then the linker will have allocated space for
+ the symbol in a common section but the XCOFF_DEF_REGULAR flag
+ will not have been set. */
+ if (h->root.type == bfd_link_hash_defined
+ && (h->flags & XCOFF_DEF_REGULAR) == 0
+ && (h->flags & XCOFF_REF_REGULAR) != 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) == 0
+ && (bfd_is_abs_section (h->root.u.def.section)
+ || (h->root.u.def.section->owner->flags & DYNAMIC) == 0))
+ h->flags |= XCOFF_DEF_REGULAR;
- /* Garbage collect unused sections. */
- if (info->relocateable
- || ! gc
- || hentry == NULL
- || (hentry->root.type != bfd_link_hash_defined
- && hentry->root.type != bfd_link_hash_defweak))
+ /* If all defined symbols should be exported, mark them now. We
+ don't want to export the actual functions, just the function
+ descriptors. */
+ if (ldinfo->export_defineds
+ && (h->flags & XCOFF_DEF_REGULAR) != 0
+ && h->root.root.string[0] != '.')
{
- gc = false;
- xcoff_hash_table (info)->gc = false;
+ bfd_boolean export;
- /* We still need to call xcoff_mark, in order to set ldrel_count
- correctly. */
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ /* We don't export a symbol which is being defined by an object
+ included from an archive which contains a shared object. The
+ rationale is that if an archive contains both an unshared and
+ a shared object, then there must be some reason that the
+ unshared object is unshared, and we don't want to start
+ providing a shared version of it. In particular, this solves
+ a bug involving the _savefNN set of functions. gcc will call
+ those functions without providing a slot to restore the TOC,
+ so it is essential that these functions be linked in directly
+ and not from a shared object, which means that a shared
+ object which also happens to link them in must not export
+ them. This is confusing, but I haven't been able to think of
+ a different approach. Note that the symbols can, of course,
+ be exported explicitly. */
+ export = TRUE;
+ if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->root.u.def.section->owner != NULL
+ && h->root.u.def.section->owner->my_archive != NULL)
{
- asection *o;
+ bfd *arbfd, *member;
- for (o = sub->sections; o != NULL; o = o->next)
+ arbfd = h->root.u.def.section->owner->my_archive;
+ member = bfd_openr_next_archived_file (arbfd, NULL);
+ while (member != NULL)
{
- if ((o->flags & SEC_MARK) == 0)
+ if ((member->flags & DYNAMIC) != 0)
{
- if (! xcoff_mark (info, o))
- goto error_return;
+ export = FALSE;
+ break;
}
+ member = bfd_openr_next_archived_file (arbfd, member);
}
}
- }
- else
- {
- if (! xcoff_mark (info, hentry->root.u.def.section))
- goto error_return;
- xcoff_sweep (info);
- xcoff_hash_table (info)->gc = true;
- }
- /* Return special sections to the caller. */
- for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++) {
- asection *sec;
-
- sec = xcoff_hash_table (info)->special_sections[i];
-
- if ((sec != NULL) &&
- (gc && (sec->flags & SEC_MARK) == 0)) {
- sec = NULL;
+ if (export)
+ h->flags |= XCOFF_EXPORT;
}
- special_sections[i] = sec;
- }
-
- if (info->input_bfds == NULL) {
- /* I'm not sure what to do in this bizarre case. */
- return true;
- }
- xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_build_ldsyms,
- (PTR) &ldinfo);
- if (ldinfo.failed)
- goto error_return;
+ /* We don't want to garbage collect symbols which are not defined in
+ XCOFF files. This is a convenient place to mark them. */
+ if (xcoff_hash_table (ldinfo->info)->gc
+ && (h->flags & XCOFF_MARK) == 0
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && (h->root.u.def.section->owner == NULL
+ || (h->root.u.def.section->owner->xvec
+ != ldinfo->info->hash->creator)))
+ h->flags |= XCOFF_MARK;
- /* Work out the size of the import file names. Each import file ID
- consists of three null terminated strings: the path, the file
- name, and the archive member name. The first entry in the list
- of names is the path to use to find objects, which the linker has
- passed in as the libpath argument. For some reason, the path
- entry in the other import file names appears to always be empty. */
- impsize = strlen (libpath) + 3;
- impcount = 1;
- for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next)
+ /* If this symbol is called and defined in a dynamic object, or it
+ is imported, then we need to set up global linkage code for it.
+ (Unless we did garbage collection and we didn't need this
+ symbol.) */
+ if ((h->flags & XCOFF_CALLED) != 0
+ && (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
+ && h->root.root.string[0] == '.'
+ && h->descriptor != NULL
+ && ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0
+ || ((h->descriptor->flags & XCOFF_IMPORT) != 0
+ && (h->descriptor->flags & XCOFF_DEF_REGULAR) == 0))
+ && (! xcoff_hash_table (ldinfo->info)->gc
+ || (h->flags & XCOFF_MARK) != 0))
{
- ++impcount;
- impsize += (strlen (fl->path)
- + strlen (fl->file)
+ asection *sec;
+ struct xcoff_link_hash_entry *hds;
+
+ sec = xcoff_hash_table (ldinfo->info)->linkage_section;
+ h->root.type = bfd_link_hash_defined;
+ h->root.u.def.section = sec;
+ h->root.u.def.value = sec->size;
+ h->smclas = XMC_GL;
+ h->flags |= XCOFF_DEF_REGULAR;
+ sec->size += bfd_xcoff_glink_code_size(ldinfo->output_bfd);
+
+ /* The global linkage code requires a TOC entry for the
+ descriptor. */
+ hds = h->descriptor;
+ BFD_ASSERT ((hds->root.type == bfd_link_hash_undefined
+ || hds->root.type == bfd_link_hash_undefweak)
+ && (hds->flags & XCOFF_DEF_REGULAR) == 0);
+ hds->flags |= XCOFF_MARK;
+ if (hds->toc_section == NULL)
+ {
+ int byte_size;
+
+ /* 32 vs 64
+ xcoff32 uses 4 bytes in the toc.
+ xcoff64 uses 8 bytes in the toc. */
+ if (bfd_xcoff_is_xcoff64 (ldinfo->output_bfd))
+ byte_size = 8;
+ else if (bfd_xcoff_is_xcoff32 (ldinfo->output_bfd))
+ byte_size = 4;
+ else
+ return FALSE;
+
+ hds->toc_section = xcoff_hash_table (ldinfo->info)->toc_section;
+ hds->u.toc_offset = hds->toc_section->size;
+ hds->toc_section->size += byte_size;
+ ++xcoff_hash_table (ldinfo->info)->ldrel_count;
+ ++hds->toc_section->reloc_count;
+ hds->indx = -2;
+ hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL;
+
+ /* We need to call xcoff_build_ldsyms recursively here,
+ because we may already have passed hds on the traversal. */
+ xcoff_build_ldsyms (hds, p);
+ }
+ }
+
+ /* If this symbol is exported, but not defined, we need to try to
+ define it. */
+ if ((h->flags & XCOFF_EXPORT) != 0
+ && (h->flags & XCOFF_IMPORT) == 0
+ && (h->flags & XCOFF_DEF_REGULAR) == 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) == 0
+ && (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak))
+ {
+ if ((h->flags & XCOFF_DESCRIPTOR) != 0
+ && (h->descriptor->root.type == bfd_link_hash_defined
+ || h->descriptor->root.type == bfd_link_hash_defweak))
+ {
+ asection *sec;
+
+ /* This is an undefined function descriptor associated with
+ a defined entry point. We can build up a function
+ descriptor ourselves. Believe it or not, the AIX linker
+ actually does this, and there are cases where we need to
+ do it as well. */
+ sec = xcoff_hash_table (ldinfo->info)->descriptor_section;
+ h->root.type = bfd_link_hash_defined;
+ h->root.u.def.section = sec;
+ h->root.u.def.value = sec->size;
+ h->smclas = XMC_DS;
+ h->flags |= XCOFF_DEF_REGULAR;
+
+ /* The size of the function descriptor depends if this is an
+ xcoff32 (12) or xcoff64 (24). */
+ sec->size +=
+ bfd_xcoff_function_descriptor_size(ldinfo->output_bfd);
+
+ /* A function descriptor uses two relocs: one for the
+ associated code, and one for the TOC address. */
+ xcoff_hash_table (ldinfo->info)->ldrel_count += 2;
+ sec->reloc_count += 2;
+
+ /* We handle writing out the contents of the descriptor in
+ xcoff_write_global_symbol. */
+ }
+ else
+ {
+ (*_bfd_error_handler)
+ (_("warning: attempt to export undefined symbol `%s'"),
+ h->root.root.string);
+ h->ldsym = NULL;
+ return TRUE;
+ }
+ }
+
+ /* If this is still a common symbol, and it wasn't garbage
+ collected, we need to actually allocate space for it in the .bss
+ section. */
+ if (h->root.type == bfd_link_hash_common
+ && (! xcoff_hash_table (ldinfo->info)->gc
+ || (h->flags & XCOFF_MARK) != 0)
+ && h->root.u.c.p->section->size == 0)
+ {
+ BFD_ASSERT (bfd_is_com_section (h->root.u.c.p->section));
+ h->root.u.c.p->section->size = h->root.u.c.size;
+ }
+
+ /* We need to add a symbol to the .loader section if it is mentioned
+ in a reloc which we are copying to the .loader section and it was
+ not defined or common, or if it is the entry point, or if it is
+ being exported. */
+
+ if (((h->flags & XCOFF_LDREL) == 0
+ || h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak
+ || h->root.type == bfd_link_hash_common)
+ && (h->flags & XCOFF_ENTRY) == 0
+ && (h->flags & XCOFF_EXPORT) == 0)
+ {
+ h->ldsym = NULL;
+ return TRUE;
+ }
+
+ /* We don't need to add this symbol if we did garbage collection and
+ we did not mark this symbol. */
+ if (xcoff_hash_table (ldinfo->info)->gc
+ && (h->flags & XCOFF_MARK) == 0)
+ {
+ h->ldsym = NULL;
+ return TRUE;
+ }
+
+ /* We may have already processed this symbol due to the recursive
+ call above. */
+ if ((h->flags & XCOFF_BUILT_LDSYM) != 0)
+ return TRUE;
+
+ /* We need to add this symbol to the .loader symbols. */
+
+ BFD_ASSERT (h->ldsym == NULL);
+ amt = sizeof (struct internal_ldsym);
+ h->ldsym = bfd_zalloc (ldinfo->output_bfd, amt);
+ if (h->ldsym == NULL)
+ {
+ ldinfo->failed = TRUE;
+ return FALSE;
+ }
+
+ if ((h->flags & XCOFF_IMPORT) != 0)
+ h->ldsym->l_ifile = h->ldindx;
+
+ /* The first 3 symbol table indices are reserved to indicate the
+ data, text and bss sections. */
+ h->ldindx = ldinfo->ldsym_count + 3;
+
+ ++ldinfo->ldsym_count;
+
+ if (! bfd_xcoff_put_ldsymbol_name (ldinfo->output_bfd, ldinfo,
+ h->ldsym, h->root.root.string))
+ return FALSE;
+
+ h->flags |= XCOFF_BUILT_LDSYM;
+
+ return TRUE;
+}
+/* Build the .loader section. This is called by the XCOFF linker
+ emulation before_allocation routine. We must set the size of the
+ .loader section before the linker lays out the output file.
+ LIBPATH is the library path to search for shared objects; this is
+ normally built from the -L arguments passed to the linker. ENTRY
+ is the name of the entry point symbol (the -e linker option).
+ FILE_ALIGN is the alignment to use for sections within the file
+ (the -H linker option). MAXSTACK is the maximum stack size (the
+ -bmaxstack linker option). MAXDATA is the maximum data size (the
+ -bmaxdata linker option). GC is whether to do garbage collection
+ (the -bgc linker option). MODTYPE is the module type (the
+ -bmodtype linker option). TEXTRO is whether the text section must
+ be read only (the -btextro linker option). EXPORT_DEFINEDS is
+ whether all defined symbols should be exported (the -unix linker
+ option). SPECIAL_SECTIONS is set by this routine to csects with
+ magic names like _end. */
+
+bfd_boolean
+bfd_xcoff_size_dynamic_sections (bfd *output_bfd,
+ struct bfd_link_info *info,
+ const char *libpath,
+ const char *entry,
+ unsigned long file_align,
+ unsigned long maxstack,
+ unsigned long maxdata,
+ bfd_boolean gc,
+ int modtype,
+ bfd_boolean textro,
+ bfd_boolean export_defineds,
+ asection **special_sections,
+ bfd_boolean rtld)
+{
+ struct xcoff_link_hash_entry *hentry;
+ asection *lsec;
+ struct xcoff_loader_info ldinfo;
+ int i;
+ size_t impsize, impcount;
+ struct xcoff_import_file *fl;
+ struct internal_ldhdr *ldhdr;
+ bfd_size_type stoff;
+ char *out;
+ asection *sec;
+ bfd *sub;
+ struct bfd_strtab_hash *debug_strtab;
+ bfd_byte *debug_contents = NULL;
+ bfd_size_type amt;
+
+ if (bfd_get_flavour (output_bfd) != bfd_target_xcoff_flavour)
+ {
+ for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
+ special_sections[i] = NULL;
+ return TRUE;
+ }
+
+ ldinfo.failed = FALSE;
+ ldinfo.output_bfd = output_bfd;
+ ldinfo.info = info;
+ ldinfo.export_defineds = export_defineds;
+ ldinfo.ldsym_count = 0;
+ ldinfo.string_size = 0;
+ ldinfo.strings = NULL;
+ ldinfo.string_alc = 0;
+
+ xcoff_data (output_bfd)->maxstack = maxstack;
+ xcoff_data (output_bfd)->maxdata = maxdata;
+ xcoff_data (output_bfd)->modtype = modtype;
+
+ xcoff_hash_table (info)->file_align = file_align;
+ xcoff_hash_table (info)->textro = textro;
+
+ hentry = NULL;
+ if (entry != NULL)
+ {
+ hentry = xcoff_link_hash_lookup (xcoff_hash_table (info), entry,
+ FALSE, FALSE, TRUE);
+ if (hentry != NULL)
+ hentry->flags |= XCOFF_ENTRY;
+ }
+
+ /* __rtinit */
+ if (info->init_function || info->fini_function || rtld)
+ {
+ struct xcoff_link_hash_entry *hsym;
+ struct internal_ldsym *ldsym;
+
+ hsym = xcoff_link_hash_lookup (xcoff_hash_table (info),
+ "__rtinit", FALSE, FALSE, TRUE);
+ if (hsym == NULL)
+ {
+ (*_bfd_error_handler)
+ (_("error: undefined symbol __rtinit"));
+ return FALSE;
+ }
+
+ xcoff_mark_symbol (info, hsym);
+ hsym->flags |= (XCOFF_DEF_REGULAR | XCOFF_RTINIT);
+
+ /* __rtinit initialized. */
+ amt = sizeof (* ldsym);
+ ldsym = bfd_malloc (amt);
+
+ ldsym->l_value = 0; /* Will be filled in later. */
+ ldsym->l_scnum = 2; /* Data section. */
+ ldsym->l_smtype = XTY_SD; /* Csect section definition. */
+ ldsym->l_smclas = 5; /* .rw. */
+ ldsym->l_ifile = 0; /* Special system loader symbol. */
+ ldsym->l_parm = 0; /* NA. */
+
+ /* Force __rtinit to be the first symbol in the loader symbol table
+ See xcoff_build_ldsyms
+
+ The first 3 symbol table indices are reserved to indicate the data,
+ text and bss sections. */
+ BFD_ASSERT (0 == ldinfo.ldsym_count);
+
+ hsym->ldindx = 3;
+ ldinfo.ldsym_count = 1;
+ hsym->ldsym = ldsym;
+
+ if (! bfd_xcoff_put_ldsymbol_name (ldinfo.output_bfd, &ldinfo,
+ hsym->ldsym, hsym->root.root.string))
+ return FALSE;
+
+ /* This symbol is written out by xcoff_write_global_symbol
+ Set stuff up so xcoff_write_global_symbol logic works. */
+ hsym->flags |= XCOFF_DEF_REGULAR | XCOFF_MARK;
+ hsym->root.type = bfd_link_hash_defined;
+ hsym->root.u.def.value = 0;
+ }
+
+ /* Garbage collect unused sections. */
+ if (info->relocatable
+ || ! gc
+ || hentry == NULL
+ || (hentry->root.type != bfd_link_hash_defined
+ && hentry->root.type != bfd_link_hash_defweak))
+ {
+ gc = FALSE;
+ xcoff_hash_table (info)->gc = FALSE;
+
+ /* We still need to call xcoff_mark, in order to set ldrel_count
+ correctly. */
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ {
+ asection *o;
+
+ for (o = sub->sections; o != NULL; o = o->next)
+ {
+ if ((o->flags & SEC_MARK) == 0)
+ {
+ if (! xcoff_mark (info, o))
+ goto error_return;
+ }
+ }
+ }
+ }
+ else
+ {
+ if (! xcoff_mark (info, hentry->root.u.def.section))
+ goto error_return;
+ xcoff_sweep (info);
+ xcoff_hash_table (info)->gc = TRUE;
+ }
+
+ /* Return special sections to the caller. */
+ for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
+ {
+ sec = xcoff_hash_table (info)->special_sections[i];
+
+ if (sec != NULL
+ && gc
+ && (sec->flags & SEC_MARK) == 0)
+ sec = NULL;
+
+ special_sections[i] = sec;
+ }
+
+ if (info->input_bfds == NULL)
+ /* I'm not sure what to do in this bizarre case. */
+ return TRUE;
+
+ xcoff_link_hash_traverse (xcoff_hash_table (info), xcoff_build_ldsyms,
+ (void *) &ldinfo);
+ if (ldinfo.failed)
+ goto error_return;
+
+ /* Work out the size of the import file names. Each import file ID
+ consists of three null terminated strings: the path, the file
+ name, and the archive member name. The first entry in the list
+ of names is the path to use to find objects, which the linker has
+ passed in as the libpath argument. For some reason, the path
+ entry in the other import file names appears to always be empty. */
+ impsize = strlen (libpath) + 3;
+ impcount = 1;
+ for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next)
+ {
+ ++impcount;
+ impsize += (strlen (fl->path)
+ + strlen (fl->file)
+ strlen (fl->member)
+ 3);
}
else
ldhdr->l_stoff = stoff;
- /*
- * 64 bit elements to ldhdr
- * The swap out routine for 32 bit will ignore them.
- * Nothing fancy, symbols come after the header and relocs come after symbols
- */
- ldhdr->l_symoff = bfd_xcoff_ldhdrsz(output_bfd);
- ldhdr->l_rldoff = bfd_xcoff_ldhdrsz(output_bfd) +
- (ldhdr->l_nsyms * bfd_xcoff_ldsymsz(output_bfd));
+ /* 64 bit elements to ldhdr
+ The swap out routine for 32 bit will ignore them.
+ Nothing fancy, symbols come after the header and relocs come
+ after symbols. */
+ ldhdr->l_symoff = bfd_xcoff_ldhdrsz (output_bfd);
+ ldhdr->l_rldoff = (bfd_xcoff_ldhdrsz (output_bfd)
+ + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (output_bfd));
/* We now know the final size of the .loader section. Allocate
space for it. */
lsec = xcoff_hash_table (info)->loader_section;
- lsec->_raw_size = stoff + ldhdr->l_stlen;
- lsec->contents = (bfd_byte *) bfd_zalloc (output_bfd, lsec->_raw_size);
+ lsec->size = stoff + ldhdr->l_stlen;
+ lsec->contents = bfd_zalloc (output_bfd, lsec->size);
if (lsec->contents == NULL)
goto error_return;
*out++ = '\0';
for (fl = xcoff_hash_table (info)->imports; fl != NULL; fl = fl->next)
{
- register const char *s;
+ const char *s;
s = fl->path;
while ((*out++ = *s++) != '\0')
symbols are written out in xcoff_link_input_bfd or
xcoff_write_global_symbol. The .loader relocs are written out
when the corresponding normal relocs are handled in
- xcoff_link_input_bfd.
- */
+ xcoff_link_input_bfd. */
/* Allocate space for the magic sections. */
sec = xcoff_hash_table (info)->linkage_section;
- if (sec->_raw_size > 0)
+ if (sec->size > 0)
{
- sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size);
+ sec->contents = bfd_zalloc (output_bfd, sec->size);
if (sec->contents == NULL)
goto error_return;
}
sec = xcoff_hash_table (info)->toc_section;
- if (sec->_raw_size > 0)
+ if (sec->size > 0)
{
- sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size);
+ sec->contents = bfd_zalloc (output_bfd, sec->size);
if (sec->contents == NULL)
goto error_return;
}
sec = xcoff_hash_table (info)->descriptor_section;
- if (sec->_raw_size > 0)
+ if (sec->size > 0)
{
- sec->contents = (bfd_byte *) bfd_zalloc (output_bfd, sec->_raw_size);
+ sec->contents = bfd_zalloc (output_bfd, sec->size);
if (sec->contents == NULL)
goto error_return;
}
if (sub->xvec != info->hash->creator)
continue;
subdeb = bfd_get_section_by_name (sub, ".debug");
- if (subdeb == NULL || subdeb->_raw_size == 0)
+ if (subdeb == NULL || subdeb->size == 0)
continue;
if (info->strip == strip_all
|| info->strip == strip_debugger
|| info->discard == discard_all)
{
- subdeb->_raw_size = 0;
+ subdeb->size = 0;
continue;
}
goto error_return;
symcount = obj_raw_syment_count (sub);
- debug_index = ((unsigned long *)
- bfd_zalloc (sub, symcount * sizeof (unsigned long)));
+ debug_index = bfd_zalloc (sub, symcount * sizeof (unsigned long));
if (debug_index == NULL)
goto error_return;
xcoff_data (sub)->debug_indices = debug_index;
bfd_alloc, because I expect that, when linking many files
together, many of the strings will be the same. Storing the
strings in the hash table should save space in this case. */
- debug_contents = (bfd_byte *) bfd_malloc (subdeb->_raw_size);
- if (debug_contents == NULL)
- goto error_return;
- if (! bfd_get_section_contents (sub, subdeb, (PTR) debug_contents,
- (file_ptr) 0, subdeb->_raw_size))
+ if (! bfd_malloc_and_get_section (sub, subdeb, &debug_contents))
goto error_return;
csectpp = xcoff_data (sub)->csects;
- symesz = bfd_coff_symesz (sub);
- esym = (bfd_byte *) obj_coff_external_syms (sub);
- esymend = esym + symcount * symesz;
- while (esym < esymend)
+ /* Dynamic object do not have csectpp's. */
+ if (NULL != csectpp)
{
- struct internal_syment sym;
+ symesz = bfd_coff_symesz (sub);
+ esym = (bfd_byte *) obj_coff_external_syms (sub);
+ esymend = esym + symcount * symesz;
- bfd_coff_swap_sym_in (sub, (PTR) esym, (PTR) &sym);
+ while (esym < esymend)
+ {
+ struct internal_syment sym;
- *debug_index = (unsigned long) -1;
+ bfd_coff_swap_sym_in (sub, (void *) esym, (void *) &sym);
- if (sym._n._n_n._n_zeroes == 0
- && *csectpp != NULL
- && (! gc
- || ((*csectpp)->flags & SEC_MARK) != 0
- || *csectpp == bfd_abs_section_ptr)
- && bfd_coff_symname_in_debug (sub, &sym))
- {
- char *name;
- bfd_size_type indx;
+ *debug_index = (unsigned long) -1;
- name = (char *) debug_contents + sym._n._n_n._n_offset;
- indx = _bfd_stringtab_add (debug_strtab, name, true, true);
- if (indx == (bfd_size_type) -1)
- goto error_return;
- *debug_index = indx;
- }
+ if (sym._n._n_n._n_zeroes == 0
+ && *csectpp != NULL
+ && (! gc
+ || ((*csectpp)->flags & SEC_MARK) != 0
+ || *csectpp == bfd_abs_section_ptr)
+ && bfd_coff_symname_in_debug (sub, &sym))
+ {
+ char *name;
+ bfd_size_type indx;
- esym += (sym.n_numaux + 1) * symesz;
- csectpp += sym.n_numaux + 1;
- debug_index += sym.n_numaux + 1;
+ name = (char *) debug_contents + sym._n._n_n._n_offset;
+ indx = _bfd_stringtab_add (debug_strtab, name, TRUE, TRUE);
+ if (indx == (bfd_size_type) -1)
+ goto error_return;
+ *debug_index = indx;
+ }
+
+ esym += (sym.n_numaux + 1) * symesz;
+ csectpp += sym.n_numaux + 1;
+ debug_index += sym.n_numaux + 1;
+ }
}
free (debug_contents);
/* Clear the size of subdeb, so that it is not included directly
in the output file. */
- subdeb->_raw_size = 0;
+ subdeb->size = 0;
if (! info->keep_memory)
{
}
if (info->strip != strip_all)
- xcoff_hash_table (info)->debug_section->_raw_size =
+ xcoff_hash_table (info)->debug_section->size =
_bfd_stringtab_size (debug_strtab);
- return true;
+ return TRUE;
error_return:
if (ldinfo.strings != NULL)
free (ldinfo.strings);
if (debug_contents != NULL)
free (debug_contents);
- return false;
+ return FALSE;
}
-/* Add a symbol to the .loader symbols, if necessary. */
-
-static boolean
-xcoff_build_ldsyms (h, p)
- struct xcoff_link_hash_entry *h;
- PTR p;
+bfd_boolean
+bfd_xcoff_link_generate_rtinit (bfd *abfd,
+ const char *init,
+ const char *fini,
+ bfd_boolean rtld)
{
- struct xcoff_loader_info *ldinfo = (struct xcoff_loader_info *) p;
-
- /*
- * __rtinit
- * Special handling of this symbol to make is the first symbol in the
- * loader symbol table. Make sure this pass through does not undo it
- */
- if (h->flags & XCOFF_RTINIT) {
- return true;
- }
+ struct bfd_in_memory *bim;
- /* If this is a final link, and the symbol was defined as a common
- symbol in a regular object file, and there was no definition in
- any dynamic object, then the linker will have allocated space for
- the symbol in a common section but the XCOFF_DEF_REGULAR flag
- will not have been set. */
- if (h->root.type == bfd_link_hash_defined
- && (h->flags & XCOFF_DEF_REGULAR) == 0
- && (h->flags & XCOFF_REF_REGULAR) != 0
- && (h->flags & XCOFF_DEF_DYNAMIC) == 0
- && (bfd_is_abs_section (h->root.u.def.section)
- || (h->root.u.def.section->owner->flags & DYNAMIC) == 0))
- h->flags |= XCOFF_DEF_REGULAR;
-
- /* If all defined symbols should be exported, mark them now. We
- don't want to export the actual functions, just the function
- descriptors. */
- if (ldinfo->export_defineds
- && (h->flags & XCOFF_DEF_REGULAR) != 0
- && h->root.root.string[0] != '.')
- {
- boolean export;
-
- /* We don't export a symbol which is being defined by an object
- included from an archive which contains a shared object. The
- rationale is that if an archive contains both an unshared and
- a shared object, then there must be some reason that the
- unshared object is unshared, and we don't want to start
- providing a shared version of it. In particular, this solves
- a bug involving the _savefNN set of functions. gcc will call
- those functions without providing a slot to restore the TOC,
- so it is essential that these functions be linked in directly
- and not from a shared object, which means that a shared
- object which also happens to link them in must not export
- them. This is confusing, but I haven't been able to think of
- a different approach. Note that the symbols can, of course,
- be exported explicitly. */
- export = true;
- if ((h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && h->root.u.def.section->owner != NULL
- && h->root.u.def.section->owner->my_archive != NULL)
- {
- bfd *arbfd, *member;
-
- arbfd = h->root.u.def.section->owner->my_archive;
- member = bfd_openr_next_archived_file (arbfd, (bfd *) NULL);
- while (member != NULL)
- {
- if ((member->flags & DYNAMIC) != 0)
- {
- export = false;
- break;
- }
- member = bfd_openr_next_archived_file (arbfd, member);
- }
- }
-
- if (export)
- h->flags |= XCOFF_EXPORT;
- }
-
- /* We don't want to garbage collect symbols which are not defined in
- XCOFF files. This is a convenient place to mark them. */
- if (xcoff_hash_table (ldinfo->info)->gc
- && (h->flags & XCOFF_MARK) == 0
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && (h->root.u.def.section->owner == NULL
- || (h->root.u.def.section->owner->xvec
- != ldinfo->info->hash->creator)))
- h->flags |= XCOFF_MARK;
-
- /* If this symbol is called and defined in a dynamic object, or it
- is imported, then we need to set up global linkage code for it.
- (Unless we did garbage collection and we didn't need this
- symbol.) */
- if ((h->flags & XCOFF_CALLED) != 0
- && (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- && h->root.root.string[0] == '.'
- && h->descriptor != NULL
- && ((h->descriptor->flags & XCOFF_DEF_DYNAMIC) != 0
- || ((h->descriptor->flags & XCOFF_IMPORT) != 0
- && (h->descriptor->flags & XCOFF_DEF_REGULAR) == 0))
- && (! xcoff_hash_table (ldinfo->info)->gc
- || (h->flags & XCOFF_MARK) != 0))
- {
- asection *sec;
- struct xcoff_link_hash_entry *hds;
-
- sec = xcoff_hash_table (ldinfo->info)->linkage_section;
- h->root.type = bfd_link_hash_defined;
- h->root.u.def.section = sec;
- h->root.u.def.value = sec->_raw_size;
- h->smclas = XMC_GL;
- h->flags |= XCOFF_DEF_REGULAR;
- sec->_raw_size += bfd_xcoff_glink_code_size(ldinfo->output_bfd);
+ bim = bfd_malloc ((bfd_size_type) sizeof (* bim));
+ if (bim == NULL)
+ return FALSE;
- /* The global linkage code requires a TOC entry for the
- descriptor. */
- hds = h->descriptor;
- BFD_ASSERT ((hds->root.type == bfd_link_hash_undefined
- || hds->root.type == bfd_link_hash_undefweak)
- && (hds->flags & XCOFF_DEF_REGULAR) == 0);
- hds->flags |= XCOFF_MARK;
- if (hds->toc_section == NULL) {
- int byte_size;
-
- /*
- * 32 vs 64
- * xcoff32 uses 4 bytes in the toc
- * xcoff64 uses 8 bytes in the toc
- */
- if (bfd_xcoff_is_xcoff64(ldinfo->output_bfd)) {
- byte_size = 8;
- } else if (bfd_xcoff_is_xcoff32(ldinfo->output_bfd)) {
- byte_size = 4;
- } else {
- return false;
- }
+ bim->size = 0;
+ bim->buffer = 0;
- hds->toc_section = xcoff_hash_table (ldinfo->info)->toc_section;
- hds->u.toc_offset = hds->toc_section->_raw_size;
- hds->toc_section->_raw_size += byte_size;
- ++xcoff_hash_table (ldinfo->info)->ldrel_count;
- ++hds->toc_section->reloc_count;
- hds->indx = -2;
- hds->flags |= XCOFF_SET_TOC | XCOFF_LDREL;
-
- /*
- * We need to call xcoff_build_ldsyms recursively here,
- * because we may already have passed hds on the traversal.
- */
- xcoff_build_ldsyms (hds, p);
- }
- }
+ abfd->link_next = 0;
+ abfd->format = bfd_object;
+ abfd->iostream = (void *) bim;
+ abfd->flags = BFD_IN_MEMORY;
+ abfd->direction = write_direction;
+ abfd->where = 0;
- /* If this symbol is exported, but not defined, we need to try to
- define it. */
- if ((h->flags & XCOFF_EXPORT) != 0
- && (h->flags & XCOFF_IMPORT) == 0
- && (h->flags & XCOFF_DEF_REGULAR) == 0
- && (h->flags & XCOFF_DEF_DYNAMIC) == 0
- && (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak))
- {
- if ((h->flags & XCOFF_DESCRIPTOR) != 0
- && (h->descriptor->root.type == bfd_link_hash_defined
- || h->descriptor->root.type == bfd_link_hash_defweak))
- {
- asection *sec;
+ if (! bfd_xcoff_generate_rtinit (abfd, init, fini, rtld))
+ return FALSE;
- /* This is an undefined function descriptor associated with
- a defined entry point. We can build up a function
- descriptor ourselves. Believe it or not, the AIX linker
- actually does this, and there are cases where we need to
- do it as well. */
- sec = xcoff_hash_table (ldinfo->info)->descriptor_section;
- h->root.type = bfd_link_hash_defined;
- h->root.u.def.section = sec;
- h->root.u.def.value = sec->_raw_size;
- h->smclas = XMC_DS;
- h->flags |= XCOFF_DEF_REGULAR;
+ /* need to reset to unknown or it will not be read back in correctly */
+ abfd->format = bfd_unknown;
+ abfd->direction = read_direction;
+ abfd->where = 0;
- /*
- * The size of the function descriptor depends if this is an
- * xcoff32 (12) or xcoff64 (24)
- */
- sec->_raw_size +=
- bfd_xcoff_function_descriptor_size(ldinfo->output_bfd);
+ return TRUE;
+}
+\f
+/* Link an input file into the linker output file. This function
+ handles all the sections and relocations of the input file at once. */
- /*
- * A function descriptor uses two relocs: one for the
- * associated code, and one for the TOC address.
- */
- xcoff_hash_table (ldinfo->info)->ldrel_count += 2;
- sec->reloc_count += 2;
+static bfd_boolean
+xcoff_link_input_bfd (struct xcoff_final_link_info *finfo,
+ bfd *input_bfd)
+{
+ bfd *output_bfd;
+ const char *strings;
+ bfd_size_type syment_base;
+ unsigned int n_tmask;
+ unsigned int n_btshft;
+ bfd_boolean copy, hash;
+ bfd_size_type isymesz;
+ bfd_size_type osymesz;
+ bfd_size_type linesz;
+ bfd_byte *esym;
+ bfd_byte *esym_end;
+ struct xcoff_link_hash_entry **sym_hash;
+ struct internal_syment *isymp;
+ asection **csectpp;
+ unsigned long *debug_index;
+ long *indexp;
+ unsigned long output_index;
+ bfd_byte *outsym;
+ unsigned int incls;
+ asection *oline;
+ bfd_boolean keep_syms;
+ asection *o;
- /*
- * We handle writing out the contents of the descriptor in
- * xcoff_write_global_symbol.
- */
- }
- else
- {
- (*_bfd_error_handler)
- (_("warning: attempt to export undefined symbol `%s'"),
- h->root.root.string);
- h->ldsym = NULL;
- return true;
- }
- }
+ /* We can just skip DYNAMIC files, unless this is a static link. */
+ if ((input_bfd->flags & DYNAMIC) != 0
+ && ! finfo->info->static_link)
+ return TRUE;
- /* If this is still a common symbol, and it wasn't garbage
- collected, we need to actually allocate space for it in the .bss
- section. */
- if (h->root.type == bfd_link_hash_common
- && (! xcoff_hash_table (ldinfo->info)->gc
- || (h->flags & XCOFF_MARK) != 0)
- && h->root.u.c.p->section->_raw_size == 0)
- {
- BFD_ASSERT (bfd_is_com_section (h->root.u.c.p->section));
- h->root.u.c.p->section->_raw_size = h->root.u.c.size;
- }
+ /* Move all the symbols to the output file. */
+ output_bfd = finfo->output_bfd;
+ strings = NULL;
+ syment_base = obj_raw_syment_count (output_bfd);
+ isymesz = bfd_coff_symesz (input_bfd);
+ osymesz = bfd_coff_symesz (output_bfd);
+ linesz = bfd_coff_linesz (input_bfd);
+ BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd));
- /* We need to add a symbol to the .loader section if it is mentioned
- in a reloc which we are copying to the .loader section and it was
- not defined or common, or if it is the entry point, or if it is
- being exported. */
+ n_tmask = coff_data (input_bfd)->local_n_tmask;
+ n_btshft = coff_data (input_bfd)->local_n_btshft;
- if (((h->flags & XCOFF_LDREL) == 0
- || h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak
- || h->root.type == bfd_link_hash_common)
- && (h->flags & XCOFF_ENTRY) == 0
- && (h->flags & XCOFF_EXPORT) == 0)
- {
- h->ldsym = NULL;
- return true;
- }
+ /* Define macros so that ISFCN, et. al., macros work correctly. */
+#define N_TMASK n_tmask
+#define N_BTSHFT n_btshft
- /* We don't need to add this symbol if we did garbage collection and
- we did not mark this symbol. */
- if (xcoff_hash_table (ldinfo->info)->gc
- && (h->flags & XCOFF_MARK) == 0)
- {
- h->ldsym = NULL;
- return true;
- }
+ copy = FALSE;
+ if (! finfo->info->keep_memory)
+ copy = TRUE;
+ hash = TRUE;
+ if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
+ hash = FALSE;
- /* We may have already processed this symbol due to the recursive
- call above. */
- if ((h->flags & XCOFF_BUILT_LDSYM) != 0)
- return true;
+ if (! _bfd_coff_get_external_symbols (input_bfd))
+ return FALSE;
- /* We need to add this symbol to the .loader symbols. */
+ esym = (bfd_byte *) obj_coff_external_syms (input_bfd);
+ esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz;
+ sym_hash = obj_xcoff_sym_hashes (input_bfd);
+ csectpp = xcoff_data (input_bfd)->csects;
+ debug_index = xcoff_data (input_bfd)->debug_indices;
+ isymp = finfo->internal_syms;
+ indexp = finfo->sym_indices;
+ output_index = syment_base;
+ outsym = finfo->outsyms;
+ incls = 0;
+ oline = NULL;
- BFD_ASSERT (h->ldsym == NULL);
- h->ldsym = ((struct internal_ldsym *)
- bfd_zalloc (ldinfo->output_bfd,
- sizeof (struct internal_ldsym)));
- if (h->ldsym == NULL)
+ while (esym < esym_end)
{
- ldinfo->failed = true;
- return false;
- }
+ struct internal_syment isym;
+ union internal_auxent aux;
+ int smtyp = 0;
+ bfd_boolean skip;
+ bfd_boolean require;
+ int add;
- if ((h->flags & XCOFF_IMPORT) != 0)
- h->ldsym->l_ifile = h->ldindx;
+ bfd_coff_swap_sym_in (input_bfd, (void *) esym, (void *) isymp);
- /*
- * The first 3 symbol table indices are reserved to indicate the data,
- * text and bss sections.
- */
- h->ldindx = ldinfo->ldsym_count + 3;
+ /* If this is a C_EXT or C_HIDEXT symbol, we need the csect
+ information. */
+ if (isymp->n_sclass == C_EXT || isymp->n_sclass == C_HIDEXT)
+ {
+ BFD_ASSERT (isymp->n_numaux > 0);
+ bfd_coff_swap_aux_in (input_bfd,
+ (void *) (esym + isymesz * isymp->n_numaux),
+ isymp->n_type, isymp->n_sclass,
+ isymp->n_numaux - 1, isymp->n_numaux,
+ (void *) &aux);
- ++ldinfo->ldsym_count;
+ smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp);
+ }
- if (false == bfd_xcoff_put_ldsymbol_name (ldinfo->output_bfd, ldinfo,
- h->ldsym,
- h->root.root.string)) {
- return false;
- }
+ /* Make a copy of *isymp so that the relocate_section function
+ always sees the original values. This is more reliable than
+ always recomputing the symbol value even if we are stripping
+ the symbol. */
+ isym = *isymp;
- h->flags |= XCOFF_BUILT_LDSYM;
+ /* If this symbol is in the .loader section, swap out the
+ .loader symbol information. If this is an external symbol
+ reference to a defined symbol, though, then wait until we get
+ to the definition. */
+ if (isym.n_sclass == C_EXT
+ && *sym_hash != NULL
+ && (*sym_hash)->ldsym != NULL
+ && (smtyp != XTY_ER
+ || (*sym_hash)->root.type == bfd_link_hash_undefined))
+ {
+ struct xcoff_link_hash_entry *h;
+ struct internal_ldsym *ldsym;
- return true;
-}
-\f
-/* Do the final link step. */
+ h = *sym_hash;
+ ldsym = h->ldsym;
+ if (isym.n_scnum > 0)
+ {
+ ldsym->l_scnum = (*csectpp)->output_section->target_index;
+ ldsym->l_value = (isym.n_value
+ + (*csectpp)->output_section->vma
+ + (*csectpp)->output_offset
+ - (*csectpp)->vma);
+ }
+ else
+ {
+ ldsym->l_scnum = isym.n_scnum;
+ ldsym->l_value = isym.n_value;
+ }
-boolean
-_bfd_xcoff_bfd_final_link (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- bfd_size_type symesz;
- struct xcoff_final_link_info finfo;
- asection *o;
- struct bfd_link_order *p;
- size_t max_contents_size;
- size_t max_sym_count;
- size_t max_lineno_count;
- size_t max_reloc_count;
- size_t max_output_reloc_count;
- file_ptr rel_filepos;
- unsigned int relsz;
- file_ptr line_filepos;
- unsigned int linesz;
- bfd *sub;
- bfd_byte *external_relocs = NULL;
- char strbuf[STRING_SIZE_SIZE];
+ ldsym->l_smtype = smtyp;
+ if (((h->flags & XCOFF_DEF_REGULAR) == 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
+ || (h->flags & XCOFF_IMPORT) != 0)
+ ldsym->l_smtype |= L_IMPORT;
+ if (((h->flags & XCOFF_DEF_REGULAR) != 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
+ || (h->flags & XCOFF_EXPORT) != 0)
+ ldsym->l_smtype |= L_EXPORT;
+ if ((h->flags & XCOFF_ENTRY) != 0)
+ ldsym->l_smtype |= L_ENTRY;
- if (info->shared)
- abfd->flags |= DYNAMIC;
+ ldsym->l_smclas = aux.x_csect.x_smclas;
- symesz = bfd_coff_symesz (abfd);
+ if (ldsym->l_ifile == (bfd_size_type) -1)
+ ldsym->l_ifile = 0;
+ else if (ldsym->l_ifile == 0)
+ {
+ if ((ldsym->l_smtype & L_IMPORT) == 0)
+ ldsym->l_ifile = 0;
+ else
+ {
+ bfd *impbfd;
- finfo.info = info;
- finfo.output_bfd = abfd;
- finfo.strtab = NULL;
- finfo.section_info = NULL;
- finfo.last_file_index = -1;
- finfo.toc_symindx = -1;
- finfo.internal_syms = NULL;
- finfo.sym_indices = NULL;
- finfo.outsyms = NULL;
- finfo.linenos = NULL;
- finfo.contents = NULL;
- finfo.external_relocs = NULL;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ impbfd = h->root.u.def.section->owner;
+ else if (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
+ impbfd = h->root.u.undef.abfd;
+ else
+ impbfd = NULL;
- finfo.ldsym = xcoff_hash_table (info)->loader_section->contents +
- bfd_xcoff_ldhdrsz(abfd);
- finfo.ldrel = xcoff_hash_table (info)->loader_section->contents +
- bfd_xcoff_ldhdrsz(abfd) +
- xcoff_hash_table (info)->ldhdr.l_nsyms * bfd_xcoff_ldsymsz(abfd);
+ if (impbfd == NULL)
+ ldsym->l_ifile = 0;
+ else
+ {
+ BFD_ASSERT (impbfd->xvec == finfo->output_bfd->xvec);
+ ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
+ }
+ }
+ }
- xcoff_data (abfd)->coff.link_info = info;
+ ldsym->l_parm = 0;
- finfo.strtab = _bfd_stringtab_init ();
- if (finfo.strtab == NULL)
- goto error_return;
+ BFD_ASSERT (h->ldindx >= 0);
+ bfd_xcoff_swap_ldsym_out (finfo->output_bfd, ldsym,
+ (finfo->ldsym
+ + ((h->ldindx - 3)
+ * bfd_xcoff_ldsymsz (finfo->output_bfd))));
+ h->ldsym = NULL;
- /* Count the line number and relocation entries required for the
- output file. Determine a few maximum sizes. */
- max_contents_size = 0;
- max_lineno_count = 0;
- max_reloc_count = 0;
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- o->reloc_count = 0;
- o->lineno_count = 0;
- for (p = o->link_order_head; p != NULL; p = p->next)
- {
- if (p->type == bfd_indirect_link_order)
+ /* Fill in snentry now that we know the target_index. */
+ if ((h->flags & XCOFF_ENTRY) != 0
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
{
- asection *sec;
-
- sec = p->u.indirect.section;
+ xcoff_data (output_bfd)->snentry =
+ h->root.u.def.section->output_section->target_index;
+ }
+ }
- /* Mark all sections which are to be included in the
- link. This will normally be every section. We need
- to do this so that we can identify any sections which
- the linker has decided to not include. */
- sec->linker_mark = true;
+ *indexp = -1;
- if (info->strip == strip_none
- || info->strip == strip_some)
- o->lineno_count += sec->lineno_count;
+ skip = FALSE;
+ require = FALSE;
+ add = 1 + isym.n_numaux;
- o->reloc_count += sec->reloc_count;
+ /* If we are skipping this csect, we want to skip this symbol. */
+ if (*csectpp == NULL)
+ skip = TRUE;
- if (sec->_raw_size > max_contents_size)
- max_contents_size = sec->_raw_size;
- if (sec->lineno_count > max_lineno_count)
- max_lineno_count = sec->lineno_count;
- if (coff_section_data (sec->owner, sec) != NULL
- && xcoff_section_data (sec->owner, sec) != NULL
- && (xcoff_section_data (sec->owner, sec)->lineno_count
- > max_lineno_count))
- max_lineno_count =
- xcoff_section_data (sec->owner, sec)->lineno_count;
- if (sec->reloc_count > max_reloc_count)
- max_reloc_count = sec->reloc_count;
- }
- else if (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order)
- ++o->reloc_count;
- }
- }
+ /* If we garbage collected this csect, we want to skip this
+ symbol. */
+ if (! skip
+ && xcoff_hash_table (finfo->info)->gc
+ && ((*csectpp)->flags & SEC_MARK) == 0
+ && *csectpp != bfd_abs_section_ptr)
+ skip = TRUE;
- /* Compute the file positions for all the sections. */
- if (abfd->output_has_begun)
- {
- if (xcoff_hash_table (info)->file_align != 0)
- abort ();
- }
- else
- {
- bfd_vma file_align;
+ /* An XCOFF linker always skips C_STAT symbols. */
+ if (! skip
+ && isymp->n_sclass == C_STAT)
+ skip = TRUE;
- file_align = xcoff_hash_table (info)->file_align;
- if (file_align != 0)
+ /* We skip all but the first TOC anchor. */
+ if (! skip
+ && isymp->n_sclass == C_HIDEXT
+ && aux.x_csect.x_smclas == XMC_TC0)
{
- boolean saw_contents;
- int indx;
- asection **op;
- file_ptr sofar;
-
- /* Insert .pad sections before every section which has
- contents and is loaded, if it is preceded by some other
- section which has contents and is loaded. */
- saw_contents = true;
- for (op = &abfd->sections; *op != NULL; op = &(*op)->next)
+ if (finfo->toc_symindx != -1)
+ skip = TRUE;
+ else
{
- if (strcmp ((*op)->name, ".pad") == 0)
- saw_contents = false;
- else if (((*op)->flags & SEC_HAS_CONTENTS) != 0
- && ((*op)->flags & SEC_LOAD) != 0)
- {
- if (! saw_contents)
- saw_contents = true;
- else
- {
- asection *n, *hold;
+ bfd_vma tocval, tocend;
+ bfd *inp;
- hold = *op;
- *op = NULL;
- n = bfd_make_section_anyway (abfd, ".pad");
- BFD_ASSERT (*op == n);
- n->next = hold;
- n->flags = SEC_HAS_CONTENTS;
- n->alignment_power = 0;
- saw_contents = false;
- }
- }
- }
+ tocval = ((*csectpp)->output_section->vma
+ + (*csectpp)->output_offset
+ + isym.n_value
+ - (*csectpp)->vma);
- /* Reset the section indices after inserting the new
- sections. */
- indx = 0;
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- ++indx;
- o->target_index = indx;
- }
- BFD_ASSERT ((unsigned int) indx == abfd->section_count);
+ /* We want to find out if tocval is a good value to use
+ as the TOC anchor--that is, whether we can access all
+ of the TOC using a 16 bit offset from tocval. This
+ test assumes that the TOC comes at the end of the
+ output section, as it does in the default linker
+ script. */
+ tocend = ((*csectpp)->output_section->vma
+ + (*csectpp)->output_section->size);
+ for (inp = finfo->info->input_bfds;
+ inp != NULL;
+ inp = inp->link_next)
+ {
- /* Work out appropriate sizes for the .pad sections to force
- each section to land on a page boundary. This bit of
- code knows what compute_section_file_positions is going
- to do. */
- sofar = bfd_coff_filhsz (abfd);
- sofar += bfd_coff_aoutsz (abfd);
- sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
- for (o = abfd->sections; o != NULL; o = o->next) {
- if ((true ==
- bfd_xcoff_is_reloc_count_overflow(abfd, o->reloc_count)) ||
- (true ==
- bfd_xcoff_is_lineno_count_overflow(abfd, o->lineno_count))) {
+ for (o = inp->sections; o != NULL; o = o->next)
+ if (strcmp (o->name, ".tocbss") == 0)
+ {
+ bfd_vma new_toc_end;
+ new_toc_end = (o->output_section->vma
+ + o->output_offset
+ + o->size);
+ if (new_toc_end > tocend)
+ tocend = new_toc_end;
+ }
- /* 64 does not overflow, need to check if 32 does */
- sofar += bfd_coff_scnhsz (abfd);
- }
- }
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- if (strcmp (o->name, ".pad") == 0)
- {
- bfd_vma pageoff;
+ }
- BFD_ASSERT (o->_raw_size == 0);
- pageoff = sofar & (file_align - 1);
- if (pageoff != 0)
- {
- o->_raw_size = file_align - pageoff;
- sofar += file_align - pageoff;
- o->flags |= SEC_HAS_CONTENTS;
- }
+ if (tocval + 0x10000 < tocend)
+ {
+ (*_bfd_error_handler)
+ (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc when compiling"),
+ (unsigned long) (tocend - tocval));
+ bfd_set_error (bfd_error_file_too_big);
+ return FALSE;
}
- else
+
+ if (tocval + 0x8000 < tocend)
{
- if ((o->flags & SEC_HAS_CONTENTS) != 0)
- sofar += BFD_ALIGN (o->_raw_size,
- 1 << o->alignment_power);
+ bfd_vma tocadd;
+
+ tocadd = tocend - (tocval + 0x8000);
+ tocval += tocadd;
+ isym.n_value += tocadd;
}
+
+ finfo->toc_symindx = output_index;
+ xcoff_data (finfo->output_bfd)->toc = tocval;
+ xcoff_data (finfo->output_bfd)->sntoc =
+ (*csectpp)->output_section->target_index;
+ require = TRUE;
+
}
}
- if (! bfd_coff_compute_section_file_positions (abfd))
- goto error_return;
- }
-
- /* Allocate space for the pointers we need to keep for the relocs. */
- {
- unsigned int i;
+ /* If we are stripping all symbols, we want to skip this one. */
+ if (! skip
+ && finfo->info->strip == strip_all)
+ skip = TRUE;
- /* We use section_count + 1, rather than section_count, because
- the target_index fields are 1 based. */
- finfo.section_info =
- ((struct xcoff_link_section_info *)
- bfd_malloc ((abfd->section_count + 1)
- * sizeof (struct xcoff_link_section_info)));
- if (finfo.section_info == NULL)
- goto error_return;
- for (i = 0; i <= abfd->section_count; i++)
- {
- finfo.section_info[i].relocs = NULL;
- finfo.section_info[i].rel_hashes = NULL;
- finfo.section_info[i].toc_rel_hashes = NULL;
- }
- }
-
- /* Set the file positions for the relocs. */
- rel_filepos = obj_relocbase (abfd);
- relsz = bfd_coff_relsz (abfd);
- max_output_reloc_count = 0;
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- if (o->reloc_count == 0)
- o->rel_filepos = 0;
- else
- {
- /* A stripped file has no relocs. However, we still
- allocate the buffers, so that later code doesn't have to
- worry about whether we are stripping or not. */
- if (info->strip == strip_all)
- o->rel_filepos = 0;
- else
- {
- o->flags |= SEC_RELOC;
- o->rel_filepos = rel_filepos;
- rel_filepos += o->reloc_count * relsz;
- }
+ /* We can skip resolved external references. */
+ if (! skip
+ && isym.n_sclass == C_EXT
+ && smtyp == XTY_ER
+ && (*sym_hash)->root.type != bfd_link_hash_undefined)
+ skip = TRUE;
- /* We don't know the indices of global symbols until we have
- written out all the local symbols. For each section in
- the output file, we keep an array of pointers to hash
- table entries. Each entry in the array corresponds to a
- reloc. When we find a reloc against a global symbol, we
- set the corresponding entry in this array so that we can
- fix up the symbol index after we have written out all the
- local symbols.
+ /* We can skip common symbols if they got defined somewhere
+ else. */
+ if (! skip
+ && isym.n_sclass == C_EXT
+ && smtyp == XTY_CM
+ && ((*sym_hash)->root.type != bfd_link_hash_common
+ || (*sym_hash)->root.u.c.p->section != *csectpp)
+ && ((*sym_hash)->root.type != bfd_link_hash_defined
+ || (*sym_hash)->root.u.def.section != *csectpp))
+ skip = TRUE;
- Because of this problem, we also keep the relocs in
- memory until the end of the link. This wastes memory.
- We could backpatch the file later, I suppose, although it
- would be slow. */
- finfo.section_info[o->target_index].relocs =
- ((struct internal_reloc *)
- bfd_malloc (o->reloc_count * sizeof (struct internal_reloc)));
- finfo.section_info[o->target_index].rel_hashes =
- ((struct xcoff_link_hash_entry **)
- bfd_malloc (o->reloc_count
- * sizeof (struct xcoff_link_hash_entry *)));
- if (finfo.section_info[o->target_index].relocs == NULL
- || finfo.section_info[o->target_index].rel_hashes == NULL)
- goto error_return;
+ /* Skip local symbols if we are discarding them. */
+ if (! skip
+ && finfo->info->discard == discard_all
+ && isym.n_sclass != C_EXT
+ && (isym.n_sclass != C_HIDEXT
+ || smtyp != XTY_SD))
+ skip = TRUE;
- if (o->reloc_count > max_output_reloc_count)
- max_output_reloc_count = o->reloc_count;
- }
- }
+ /* If we stripping debugging symbols, and this is a debugging
+ symbol, then skip it. */
+ if (! skip
+ && finfo->info->strip == strip_debugger
+ && isym.n_scnum == N_DEBUG)
+ skip = TRUE;
- /* We now know the size of the relocs, so we can determine the file
- positions of the line numbers. */
- line_filepos = rel_filepos;
- finfo.line_filepos = line_filepos;
- linesz = bfd_coff_linesz (abfd);
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- if (o->lineno_count == 0)
- o->line_filepos = 0;
- else
+ /* If some symbols are stripped based on the name, work out the
+ name and decide whether to skip this symbol. We don't handle
+ this correctly for symbols whose names are in the .debug
+ section; to get it right we would need a new bfd_strtab_hash
+ function to return the string given the index. */
+ if (! skip
+ && (finfo->info->strip == strip_some
+ || finfo->info->discard == discard_l)
+ && (debug_index == NULL || *debug_index == (unsigned long) -1))
{
- o->line_filepos = line_filepos;
- line_filepos += o->lineno_count * linesz;
- }
-
- /* Reset the reloc and lineno counts, so that we can use them to
- count the number of entries we have output so far. */
- o->reloc_count = 0;
- o->lineno_count = 0;
- }
-
- obj_sym_filepos (abfd) = line_filepos;
+ const char *name;
+ char buf[SYMNMLEN + 1];
- /* Figure out the largest number of symbols in an input BFD. Take
- the opportunity to clear the output_has_begun fields of all the
- input BFD's. We want at least 6 symbols, since that is the
- number which xcoff_write_global_symbol may need. */
- max_sym_count = 6;
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
- {
- size_t sz;
+ name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf);
- sub->output_has_begun = false;
- sz = obj_raw_syment_count (sub);
- if (sz > max_sym_count)
- max_sym_count = sz;
- }
+ if (name == NULL)
+ return FALSE;
- /* Allocate some buffers used while linking. */
- finfo.internal_syms = ((struct internal_syment *)
- bfd_malloc (max_sym_count
- * sizeof (struct internal_syment)));
-
- finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
- finfo.outsyms = ((bfd_byte *)
- bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
- finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count
- * bfd_coff_linesz (abfd));
- finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
- finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
- if ((finfo.internal_syms == NULL && max_sym_count > 0)
- || (finfo.sym_indices == NULL && max_sym_count > 0)
- || finfo.outsyms == NULL
- || (finfo.linenos == NULL && max_lineno_count > 0)
- || (finfo.contents == NULL && max_contents_size > 0)
- || (finfo.external_relocs == NULL && max_reloc_count > 0))
- goto error_return;
+ if ((finfo->info->strip == strip_some
+ && (bfd_hash_lookup (finfo->info->keep_hash, name, FALSE,
+ FALSE) == NULL))
+ || (finfo->info->discard == discard_l
+ && (isym.n_sclass != C_EXT
+ && (isym.n_sclass != C_HIDEXT
+ || smtyp != XTY_SD))
+ && bfd_is_local_label_name (input_bfd, name)))
+ skip = TRUE;
+ }
- obj_raw_syment_count (abfd) = 0;
- xcoff_data (abfd)->toc = (bfd_vma) -1;
+ /* We can not skip the first TOC anchor. */
+ if (skip
+ && require
+ && finfo->info->strip != strip_all)
+ skip = FALSE;
- /* We now know the position of everything in the file, except that
- we don't know the size of the symbol table and therefore we don't
- know where the string table starts. We just build the string
- table in memory as we go along. We process all the relocations
- for a single input file at once. */
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- for (p = o->link_order_head; p != NULL; p = p->next)
+ /* We now know whether we are to skip this symbol or not. */
+ if (! skip)
{
- if (p->type == bfd_indirect_link_order
- && p->u.indirect.section->owner->xvec == abfd->xvec)
+ /* Adjust the symbol in order to output it. */
+
+ if (isym._n._n_n._n_zeroes == 0
+ && isym._n._n_n._n_offset != 0)
{
- sub = p->u.indirect.section->owner;
- if (! sub->output_has_begun)
+ /* This symbol has a long name. Enter it in the string
+ table we are building. If *debug_index != -1, the
+ name has already been entered in the .debug section. */
+ if (debug_index != NULL && *debug_index != (unsigned long) -1)
+ isym._n._n_n._n_offset = *debug_index;
+ else
{
- if (! xcoff_link_input_bfd (&finfo, sub))
- goto error_return;
- sub->output_has_begun = true;
+ const char *name;
+ bfd_size_type indx;
+
+ name = _bfd_coff_internal_syment_name (input_bfd, &isym, NULL);
+
+ if (name == NULL)
+ return FALSE;
+ indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy);
+ if (indx == (bfd_size_type) -1)
+ return FALSE;
+ isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx;
}
}
- else if (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order)
- {
- if (! xcoff_reloc_link_order (abfd, &finfo, o, p))
- goto error_return;
- }
- else
+
+ if (isym.n_sclass != C_BSTAT
+ && isym.n_sclass != C_ESTAT
+ && isym.n_sclass != C_DECL
+ && isym.n_scnum > 0)
{
- if (! _bfd_default_link_order (abfd, info, o, p))
- goto error_return;
+ isym.n_scnum = (*csectpp)->output_section->target_index;
+ isym.n_value += ((*csectpp)->output_section->vma
+ + (*csectpp)->output_offset
+ - (*csectpp)->vma);
}
- }
- }
+ /* The value of a C_FILE symbol is the symbol index of the
+ next C_FILE symbol. The value of the last C_FILE symbol
+ is -1. We try to get this right, below, just before we
+ write the symbols out, but in the general case we may
+ have to write the symbol out twice. */
+ if (isym.n_sclass == C_FILE)
+ {
+ if (finfo->last_file_index != -1
+ && finfo->last_file.n_value != (bfd_vma) output_index)
+ {
+ /* We must correct the value of the last C_FILE entry. */
+ finfo->last_file.n_value = output_index;
+ if ((bfd_size_type) finfo->last_file_index >= syment_base)
+ {
+ /* The last C_FILE symbol is in this input file. */
+ bfd_coff_swap_sym_out (output_bfd,
+ (void *) &finfo->last_file,
+ (void *) (finfo->outsyms
+ + ((finfo->last_file_index
+ - syment_base)
+ * osymesz)));
+ }
+ else
+ {
+ /* We have already written out the last C_FILE
+ symbol. We need to write it out again. We
+ borrow *outsym temporarily. */
+ file_ptr pos;
- /* Free up the buffers used by xcoff_link_input_bfd. */
+ bfd_coff_swap_sym_out (output_bfd,
+ (void *) &finfo->last_file,
+ (void *) outsym);
- if (finfo.internal_syms != NULL) {
- free (finfo.internal_syms);
- finfo.internal_syms = NULL;
- }
- if (finfo.sym_indices != NULL) {
- free (finfo.sym_indices);
- finfo.sym_indices = NULL;
- }
- if (finfo.linenos != NULL) {
- free (finfo.linenos);
- finfo.linenos = NULL;
- }
- if (finfo.contents != NULL) {
- free (finfo.contents);
- finfo.contents = NULL;
- }
- if (finfo.external_relocs != NULL) {
- free (finfo.external_relocs);
- finfo.external_relocs = NULL;
- }
+ pos = obj_sym_filepos (output_bfd);
+ pos += finfo->last_file_index * osymesz;
+ if (bfd_seek (output_bfd, pos, SEEK_SET) != 0
+ || (bfd_bwrite (outsym, osymesz, output_bfd)
+ != osymesz))
+ return FALSE;
+ }
+ }
- /* The value of the last C_FILE symbol is supposed to be -1. Write
- it out again. */
- if (finfo.last_file_index != -1) {
- finfo.last_file.n_value = -1;
- bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
- (PTR) finfo.outsyms);
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + finfo.last_file_index * symesz),
- SEEK_SET) != 0
- || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
- goto error_return;
- }
+ finfo->last_file_index = output_index;
+ finfo->last_file = isym;
+ }
- /* init-fini */
- if (info->init_function || info->fini_function) {
- struct xcoff_link_hash_entry *hrtinit;
+ /* The value of a C_BINCL or C_EINCL symbol is a file offset
+ into the line numbers. We update the symbol values when
+ we handle the line numbers. */
+ if (isym.n_sclass == C_BINCL
+ || isym.n_sclass == C_EINCL)
+ {
+ isym.n_value = finfo->line_filepos;
+ ++incls;
+ }
- hrtinit = xcoff_link_hash_lookup (xcoff_hash_table (info),
- "__rtinit",
- false, false, true);
- }
+ /* Output the symbol. */
+ bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym);
- /* Write out all the global symbols which do not come from XCOFF
- input files. */
- xcoff_link_hash_traverse (xcoff_hash_table (info),
- xcoff_write_global_symbol,
- (PTR) &finfo);
+ *indexp = output_index;
- if (finfo.outsyms != NULL)
- {
- free (finfo.outsyms);
- finfo.outsyms = NULL;
- }
+ if (isym.n_sclass == C_EXT)
+ {
+ long indx;
+ struct xcoff_link_hash_entry *h;
- /* Now that we have written out all the global symbols, we know the
- symbol indices to use for relocs against them, and we can finally
- write out the relocs. */
- external_relocs = (bfd_byte *) bfd_malloc (max_output_reloc_count * relsz);
- if (external_relocs == NULL && max_output_reloc_count != 0)
- goto error_return;
-
- for (o = abfd->sections; o != NULL; o = o->next) {
- struct internal_reloc *irel;
- struct internal_reloc *irelend;
- struct xcoff_link_hash_entry **rel_hash;
- struct xcoff_toc_rel_hash *toc_rel_hash;
- bfd_byte *erel;
-
- /* A stripped file has no relocs. */
- if (info->strip == strip_all) {
- o->reloc_count = 0;
- continue;
- }
-
- if (o->reloc_count == 0)
- continue;
-
- irel = finfo.section_info[o->target_index].relocs;
- irelend = irel + o->reloc_count;
- rel_hash = finfo.section_info[o->target_index].rel_hashes;
- for (; irel < irelend; irel++, rel_hash++, erel += relsz) {
- if (*rel_hash != NULL) {
- if ((*rel_hash)->indx < 0) {
- if (! ((*info->callbacks->unattached_reloc)
- (info, (*rel_hash)->root.root.string,
- (bfd *) NULL, o, irel->r_vaddr)))
- goto error_return;
- (*rel_hash)->indx = 0;
- }
- irel->r_symndx = (*rel_hash)->indx;
- }
- }
-
- for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes;
- toc_rel_hash != NULL;
- toc_rel_hash = toc_rel_hash->next) {
- if (toc_rel_hash->h->u.toc_indx < 0) {
- if (! ((*info->callbacks->unattached_reloc)
- (info, toc_rel_hash->h->root.root.string,
- (bfd *) NULL, o, toc_rel_hash->rel->r_vaddr)))
- goto error_return;
- toc_rel_hash->h->u.toc_indx = 0;
- }
- toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx;
- }
-
- /* XCOFF requires that the relocs be sorted by address. We tend
- to produce them in the order in which their containing csects
- appear in the symbol table, which is not necessarily by
- address. So we sort them here. There may be a better way to
- do this. */
- qsort ((PTR) finfo.section_info[o->target_index].relocs,
- o->reloc_count, sizeof (struct internal_reloc),
- xcoff_sort_relocs);
-
- irel = finfo.section_info[o->target_index].relocs;
- irelend = irel + o->reloc_count;
- erel = external_relocs;
- for (; irel < irelend; irel++, rel_hash++, erel += relsz)
- bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
-
- if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
- || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
- abfd) != relsz * o->reloc_count)
- goto error_return;
- }
-
- if (external_relocs != NULL) {
- free (external_relocs);
- external_relocs = NULL;
- }
-
- /* Free up the section information. */
- if (finfo.section_info != NULL) {
- unsigned int i;
-
- for (i = 0; i < abfd->section_count; i++) {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
- }
- free (finfo.section_info);
- finfo.section_info = NULL;
- }
-
- /* Write out the loader section contents. */
- BFD_ASSERT ((bfd_byte *) finfo.ldrel
- == (xcoff_hash_table (info)->loader_section->contents
- + xcoff_hash_table (info)->ldhdr.l_impoff));
- o = xcoff_hash_table (info)->loader_section;
- if (! bfd_set_section_contents (abfd, o->output_section,
- o->contents, o->output_offset,
- o->_raw_size))
- goto error_return;
-
- /* Write out the magic sections. */
- o = xcoff_hash_table (info)->linkage_section;
- if (o->_raw_size > 0
- && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
- o->output_offset, o->_raw_size))
- goto error_return;
- o = xcoff_hash_table (info)->toc_section;
- if (o->_raw_size > 0
- && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
- o->output_offset, o->_raw_size))
- goto error_return;
- o = xcoff_hash_table (info)->descriptor_section;
- if (o->_raw_size > 0
- && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
- o->output_offset, o->_raw_size))
- goto error_return;
-
- /* Write out the string table. */
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + obj_raw_syment_count (abfd) * symesz),
- SEEK_SET) != 0)
- goto error_return;
- bfd_h_put_32 (abfd,
- _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
- (bfd_byte *) strbuf);
- if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE)
- goto error_return;
- if (! _bfd_stringtab_emit (abfd, finfo.strtab))
- goto error_return;
+ indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd))
+ / isymesz);
+ h = obj_xcoff_sym_hashes (input_bfd)[indx];
+ BFD_ASSERT (h != NULL);
+ h->indx = output_index;
+ }
- _bfd_stringtab_free (finfo.strtab);
+ /* If this is a symbol in the TOC which we may have merged
+ (class XMC_TC), remember the symbol index of the TOC
+ symbol. */
+ if (isym.n_sclass == C_HIDEXT
+ && aux.x_csect.x_smclas == XMC_TC
+ && *sym_hash != NULL)
+ {
+ BFD_ASSERT (((*sym_hash)->flags & XCOFF_SET_TOC) == 0);
+ BFD_ASSERT ((*sym_hash)->toc_section != NULL);
+ (*sym_hash)->u.toc_indx = output_index;
+ }
- /* Write out the debugging string table. */
- o = xcoff_hash_table (info)->debug_section;
- if (o != NULL) {
- struct bfd_strtab_hash *debug_strtab;
-
- debug_strtab = xcoff_hash_table (info)->debug_strtab;
- BFD_ASSERT (o->output_section->_raw_size - o->output_offset
- >= _bfd_stringtab_size (debug_strtab));
- if (bfd_seek (abfd,
- o->output_section->filepos + o->output_offset,
- SEEK_SET) != 0)
- goto error_return;
- if (! _bfd_stringtab_emit (abfd, debug_strtab))
- goto error_return;
- }
-
- /* Setting bfd_get_symcount to 0 will cause write_object_contents to
- not try to write out the symbols. */
- bfd_get_symcount (abfd) = 0;
-
- return true;
+ output_index += add;
+ outsym += add * osymesz;
+ }
- error_return:
- if (finfo.strtab != NULL)
- _bfd_stringtab_free (finfo.strtab);
-
- if (finfo.section_info != NULL) {
- unsigned int i;
-
- for (i = 0; i < abfd->section_count; i++) {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
+ esym += add * isymesz;
+ isymp += add;
+ csectpp += add;
+ sym_hash += add;
+ if (debug_index != NULL)
+ debug_index += add;
+ ++indexp;
+ for (--add; add > 0; --add)
+ *indexp++ = -1;
}
- free (finfo.section_info);
- }
-
- if (finfo.internal_syms != NULL)
- free (finfo.internal_syms);
- if (finfo.sym_indices != NULL)
- free (finfo.sym_indices);
- if (finfo.outsyms != NULL)
- free (finfo.outsyms);
- if (finfo.linenos != NULL)
- free (finfo.linenos);
- if (finfo.contents != NULL)
- free (finfo.contents);
- if (finfo.external_relocs != NULL)
- free (finfo.external_relocs);
- if (external_relocs != NULL)
- free (external_relocs);
- return false;
-}
-
-/* Link an input file into the linker output file. This function
- handles all the sections and relocations of the input file at once. */
-
-static boolean
-xcoff_link_input_bfd (finfo, input_bfd)
- struct xcoff_final_link_info *finfo;
- bfd *input_bfd;
-{
- bfd *output_bfd;
- const char *strings;
- bfd_size_type syment_base;
- unsigned int n_tmask;
- unsigned int n_btshft;
- boolean copy, hash;
- bfd_size_type isymesz;
- bfd_size_type osymesz;
- bfd_size_type linesz;
- bfd_byte *esym;
- bfd_byte *esym_end;
- struct xcoff_link_hash_entry **sym_hash;
- struct internal_syment *isymp;
- asection **csectpp;
- unsigned long *debug_index;
- long *indexp;
- unsigned long output_index;
- bfd_byte *outsym;
- unsigned int incls;
- asection *oline;
- boolean keep_syms;
- asection *o;
-
- /* We can just skip DYNAMIC files, unless this is a static link. */
- if ((input_bfd->flags & DYNAMIC) != 0
- && ! finfo->info->static_link)
- return true;
-
- /* Move all the symbols to the output file. */
-
- output_bfd = finfo->output_bfd;
- strings = NULL;
- syment_base = obj_raw_syment_count (output_bfd);
- isymesz = bfd_coff_symesz (input_bfd);
- osymesz = bfd_coff_symesz (output_bfd);
- linesz = bfd_coff_linesz (input_bfd);
- BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd));
-
- n_tmask = coff_data (input_bfd)->local_n_tmask;
- n_btshft = coff_data (input_bfd)->local_n_btshft;
-
- /* Define macros so that ISFCN, et. al., macros work correctly. */
-#define N_TMASK n_tmask
-#define N_BTSHFT n_btshft
- copy = false;
- if (! finfo->info->keep_memory)
- copy = true;
- hash = true;
- if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
- hash = false;
-
- if (! _bfd_coff_get_external_symbols (input_bfd))
- return false;
+ /* Fix up the aux entries and the C_BSTAT symbols. This must be
+ done in a separate pass, because we don't know the correct symbol
+ indices until we have already decided which symbols we are going
+ to keep. */
esym = (bfd_byte *) obj_coff_external_syms (input_bfd);
esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz;
- sym_hash = obj_xcoff_sym_hashes (input_bfd);
- csectpp = xcoff_data (input_bfd)->csects;
- debug_index = xcoff_data (input_bfd)->debug_indices;
isymp = finfo->internal_syms;
indexp = finfo->sym_indices;
- output_index = syment_base;
+ csectpp = xcoff_data (input_bfd)->csects;
outsym = finfo->outsyms;
- incls = 0;
- oline = NULL;
-
while (esym < esym_end)
{
-
- struct internal_syment isym;
- union internal_auxent aux;
- int smtyp = 0;
- boolean skip;
- boolean require;
int add;
- bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp);
+ add = 1 + isymp->n_numaux;
- /* If this is a C_EXT or C_HIDEXT symbol, we need the csect
- information. */
- if (isymp->n_sclass == C_EXT || isymp->n_sclass == C_HIDEXT)
+ if (*indexp < 0)
+ esym += add * isymesz;
+ else
{
- BFD_ASSERT (isymp->n_numaux > 0);
- bfd_coff_swap_aux_in (input_bfd,
- (PTR) (esym + isymesz * isymp->n_numaux),
- isymp->n_type, isymp->n_sclass,
- isymp->n_numaux - 1, isymp->n_numaux,
- (PTR) &aux);
+ int i;
- smtyp = SMTYP_SMTYP (aux.x_csect.x_smtyp);
- }
+ if (isymp->n_sclass == C_BSTAT)
+ {
+ struct internal_syment isym;
- /* Make a copy of *isymp so that the relocate_section function
- always sees the original values. This is more reliable than
- always recomputing the symbol value even if we are stripping
- the symbol. */
- isym = *isymp;
+ bfd_vma indx;
- /* If this symbol is in the .loader section, swap out the
- .loader symbol information. If this is an external symbol
- reference to a defined symbol, though, then wait until we get
- to the definition. */
- if (isym.n_sclass == C_EXT
- && *sym_hash != NULL
- && (*sym_hash)->ldsym != NULL
- && (smtyp != XTY_ER
- || (*sym_hash)->root.type == bfd_link_hash_undefined))
- {
- struct xcoff_link_hash_entry *h;
- struct internal_ldsym *ldsym;
+ /* The value of a C_BSTAT symbol is the symbol table
+ index of the containing csect. */
+ bfd_coff_swap_sym_in (output_bfd, (void *) outsym, (void *) &isym);
+ indx = isym.n_value;
+ if (indx < obj_raw_syment_count (input_bfd))
+ {
+ long symindx;
- h = *sym_hash;
- ldsym = h->ldsym;
- if (isym.n_scnum > 0)
- {
- ldsym->l_scnum = (*csectpp)->output_section->target_index;
- ldsym->l_value = (isym.n_value
- + (*csectpp)->output_section->vma
- + (*csectpp)->output_offset
- - (*csectpp)->vma);
- }
- else
- {
- ldsym->l_scnum = isym.n_scnum;
- ldsym->l_value = isym.n_value;
+ symindx = finfo->sym_indices[indx];
+ if (symindx < 0)
+ isym.n_value = 0;
+ else
+ isym.n_value = symindx;
+ bfd_coff_swap_sym_out (output_bfd, (void *) &isym,
+ (void *) outsym);
+ }
}
- ldsym->l_smtype = smtyp;
- if (((h->flags & XCOFF_DEF_REGULAR) == 0
- && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
- || (h->flags & XCOFF_IMPORT) != 0)
- ldsym->l_smtype |= L_IMPORT;
- if (((h->flags & XCOFF_DEF_REGULAR) != 0
- && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
- || (h->flags & XCOFF_EXPORT) != 0)
- ldsym->l_smtype |= L_EXPORT;
- if ((h->flags & XCOFF_ENTRY) != 0)
- ldsym->l_smtype |= L_ENTRY;
-
- ldsym->l_smclas = aux.x_csect.x_smclas;
+ esym += isymesz;
+ outsym += osymesz;
- if (ldsym->l_ifile == (bfd_size_type) -1)
- ldsym->l_ifile = 0;
- else if (ldsym->l_ifile == 0)
+ for (i = 0; i < isymp->n_numaux && esym < esym_end; i++)
{
- if ((ldsym->l_smtype & L_IMPORT) == 0)
- ldsym->l_ifile = 0;
- else
- {
- bfd *impbfd;
+ union internal_auxent aux;
- if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- impbfd = h->root.u.def.section->owner;
- else if (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- impbfd = h->root.u.undef.abfd;
- else
- impbfd = NULL;
+ bfd_coff_swap_aux_in (input_bfd, (void *) esym, isymp->n_type,
+ isymp->n_sclass, i, isymp->n_numaux,
+ (void *) &aux);
- if (impbfd == NULL)
- ldsym->l_ifile = 0;
- else
+ if (isymp->n_sclass == C_FILE)
+ {
+ /* This is the file name (or some comment put in by
+ the compiler). If it is long, we must put it in
+ the string table. */
+ if (aux.x_file.x_n.x_zeroes == 0
+ && aux.x_file.x_n.x_offset != 0)
{
- BFD_ASSERT (impbfd->xvec == finfo->output_bfd->xvec);
- ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
+ const char *filename;
+ bfd_size_type indx;
+
+ BFD_ASSERT (aux.x_file.x_n.x_offset
+ >= STRING_SIZE_SIZE);
+ if (strings == NULL)
+ {
+ strings = _bfd_coff_read_string_table (input_bfd);
+ if (strings == NULL)
+ return FALSE;
+ }
+ filename = strings + aux.x_file.x_n.x_offset;
+ indx = _bfd_stringtab_add (finfo->strtab, filename,
+ hash, copy);
+ if (indx == (bfd_size_type) -1)
+ return FALSE;
+ aux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx;
}
}
- }
-
- ldsym->l_parm = 0;
+ else if ((isymp->n_sclass == C_EXT
+ || isymp->n_sclass == C_HIDEXT)
+ && i + 1 == isymp->n_numaux)
+ {
- BFD_ASSERT (h->ldindx >= 0);
- bfd_xcoff_swap_ldsym_out (finfo->output_bfd, ldsym,
- finfo->ldsym + (h->ldindx - 3) *
- bfd_xcoff_ldsymsz(finfo->output_bfd));
- h->ldsym = NULL;
+ /* We don't support type checking. I don't know if
+ anybody does. */
+ aux.x_csect.x_parmhash = 0;
+ /* I don't think anybody uses these fields, but we'd
+ better clobber them just in case. */
+ aux.x_csect.x_stab = 0;
+ aux.x_csect.x_snstab = 0;
- /* Fill in snentry now that we know the target_index. */
- if ((h->flags & XCOFF_ENTRY) != 0 &&
- (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)) {
- xcoff_data (output_bfd)->snentry =
- h->root.u.def.section->output_section->target_index;
- }
- }
+ if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD)
+ {
+ unsigned long indx;
- *indexp = -1;
+ indx = aux.x_csect.x_scnlen.l;
+ if (indx < obj_raw_syment_count (input_bfd))
+ {
+ long symindx;
- skip = false;
- require = false;
- add = 1 + isym.n_numaux;
+ symindx = finfo->sym_indices[indx];
+ if (symindx < 0)
+ {
+ aux.x_csect.x_scnlen.l = 0;
+ }
+ else
+ {
+ aux.x_csect.x_scnlen.l = symindx;
+ }
+ }
+ }
+ }
+ else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL)
+ {
+ unsigned long indx;
- /* If we are skipping this csect, we want to skip this symbol. */
- if (*csectpp == NULL)
- skip = true;
+ if (ISFCN (isymp->n_type)
+ || ISTAG (isymp->n_sclass)
+ || isymp->n_sclass == C_BLOCK
+ || isymp->n_sclass == C_FCN)
+ {
+ indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l;
+ if (indx > 0
+ && indx < obj_raw_syment_count (input_bfd))
+ {
+ /* We look forward through the symbol for
+ the index of the next symbol we are going
+ to include. I don't know if this is
+ entirely right. */
+ while (finfo->sym_indices[indx] < 0
+ && indx < obj_raw_syment_count (input_bfd))
+ ++indx;
+ if (indx >= obj_raw_syment_count (input_bfd))
+ indx = output_index;
+ else
+ indx = finfo->sym_indices[indx];
+ aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx;
- /* If we garbage collected this csect, we want to skip this
- symbol. */
- if (! skip
- && xcoff_hash_table (finfo->info)->gc
- && ((*csectpp)->flags & SEC_MARK) == 0
- && *csectpp != bfd_abs_section_ptr)
- skip = true;
+ }
+ }
- /* An XCOFF linker always skips C_STAT symbols. */
- if (! skip
- && isymp->n_sclass == C_STAT)
- skip = true;
+ indx = aux.x_sym.x_tagndx.l;
+ if (indx > 0 && indx < obj_raw_syment_count (input_bfd))
+ {
+ long symindx;
- /* We skip all but the first TOC anchor. */
- if (! skip
- && isymp->n_sclass == C_HIDEXT
- && aux.x_csect.x_smclas == XMC_TC0)
- {
- if (finfo->toc_symindx != -1)
- skip = true;
- else
- {
- bfd_vma tocval, tocend;
- bfd *inp;
+ symindx = finfo->sym_indices[indx];
+ if (symindx < 0)
+ aux.x_sym.x_tagndx.l = 0;
+ else
+ aux.x_sym.x_tagndx.l = symindx;
+ }
- tocval = ((*csectpp)->output_section->vma
- + (*csectpp)->output_offset
- + isym.n_value
- - (*csectpp)->vma);
+ }
- /* We want to find out if tocval is a good value to use
- as the TOC anchor--that is, whether we can access all
- of the TOC using a 16 bit offset from tocval. This
- test assumes that the TOC comes at the end of the
- output section, as it does in the default linker
- script. */
- tocend = ((*csectpp)->output_section->vma
- + (*csectpp)->output_section->_raw_size);
- for (inp = finfo->info->input_bfds;
- inp != NULL;
- inp = inp->link_next)
+ /* Copy over the line numbers, unless we are stripping
+ them. We do this on a symbol by symbol basis in
+ order to more easily handle garbage collection. */
+ if ((isymp->n_sclass == C_EXT
+ || isymp->n_sclass == C_HIDEXT)
+ && i == 0
+ && isymp->n_numaux > 1
+ && ISFCN (isymp->n_type)
+ && aux.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0)
{
- asection *o;
+ if (finfo->info->strip != strip_none
+ && finfo->info->strip != strip_some)
+ aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0;
+ else
+ {
+ asection *enclosing;
+ unsigned int enc_count;
+ bfd_signed_vma linoff;
+ struct internal_lineno lin;
- for (o = inp->sections; o != NULL; o = o->next)
- if (strcmp (o->name, ".tocbss") == 0)
- {
- bfd_vma new_toc_end;
- new_toc_end = (o->output_section->vma
- + o->output_offset
- + o->_cooked_size);
- if (new_toc_end > tocend)
- tocend = new_toc_end;
- }
+ o = *csectpp;
+ enclosing = xcoff_section_data (abfd, o)->enclosing;
+ enc_count = xcoff_section_data (abfd, o)->lineno_count;
+ if (oline != enclosing)
+ {
+ file_ptr pos = enclosing->line_filepos;
+ bfd_size_type amt = linesz * enc_count;
+ if (bfd_seek (input_bfd, pos, SEEK_SET) != 0
+ || (bfd_bread (finfo->linenos, amt, input_bfd)
+ != amt))
+ return FALSE;
+ oline = enclosing;
+ }
- }
+ linoff = (aux.x_sym.x_fcnary.x_fcn.x_lnnoptr
+ - enclosing->line_filepos);
- if (tocval + 0x10000 < tocend)
- {
- (*_bfd_error_handler)
- (_("TOC overflow: 0x%lx > 0x10000; try -mminimal-toc when compiling"),
- (unsigned long) (tocend - tocval));
- bfd_set_error (bfd_error_file_too_big);
- return false;
- }
+ bfd_coff_swap_lineno_in (input_bfd,
+ (void *) (finfo->linenos + linoff),
+ (void *) &lin);
+ if (lin.l_lnno != 0
+ || ((bfd_size_type) lin.l_addr.l_symndx
+ != ((esym
+ - isymesz
+ - ((bfd_byte *)
+ obj_coff_external_syms (input_bfd)))
+ / isymesz)))
+ aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0;
+ else
+ {
+ bfd_byte *linpend, *linp;
+ bfd_vma offset;
+ bfd_size_type count;
- if (tocval + 0x8000 < tocend)
- {
- bfd_vma tocadd;
+ lin.l_addr.l_symndx = *indexp;
+ bfd_coff_swap_lineno_out (output_bfd, (void *) &lin,
+ (void *) (finfo->linenos
+ + linoff));
- tocadd = tocend - (tocval + 0x8000);
- tocval += tocadd;
- isym.n_value += tocadd;
- }
+ linpend = (finfo->linenos
+ + enc_count * linesz);
+ offset = (o->output_section->vma
+ + o->output_offset
+ - o->vma);
+ for (linp = finfo->linenos + linoff + linesz;
+ linp < linpend;
+ linp += linesz)
+ {
+ bfd_coff_swap_lineno_in (input_bfd, (void *) linp,
+ (void *) &lin);
+ if (lin.l_lnno == 0)
+ break;
+ lin.l_addr.l_paddr += offset;
+ bfd_coff_swap_lineno_out (output_bfd,
+ (void *) &lin,
+ (void *) linp);
+ }
- finfo->toc_symindx = output_index;
- xcoff_data (finfo->output_bfd)->toc = tocval;
- xcoff_data (finfo->output_bfd)->sntoc =
- (*csectpp)->output_section->target_index;
- require = true;
-
- }
- }
+ count = (linp - (finfo->linenos + linoff)) / linesz;
- /* If we are stripping all symbols, we want to skip this one. */
- if (! skip
- && finfo->info->strip == strip_all)
- skip = true;
+ aux.x_sym.x_fcnary.x_fcn.x_lnnoptr =
+ (o->output_section->line_filepos
+ + o->output_section->lineno_count * linesz);
- /* We can skip resolved external references. */
- if (! skip
- && isym.n_sclass == C_EXT
- && smtyp == XTY_ER
- && (*sym_hash)->root.type != bfd_link_hash_undefined)
- skip = true;
+ if (bfd_seek (output_bfd,
+ aux.x_sym.x_fcnary.x_fcn.x_lnnoptr,
+ SEEK_SET) != 0
+ || (bfd_bwrite (finfo->linenos + linoff,
+ linesz * count, output_bfd)
+ != linesz * count))
+ return FALSE;
- /* We can skip common symbols if they got defined somewhere
- else. */
- if (! skip
- && isym.n_sclass == C_EXT
- && smtyp == XTY_CM
- && ((*sym_hash)->root.type != bfd_link_hash_common
- || (*sym_hash)->root.u.c.p->section != *csectpp)
- && ((*sym_hash)->root.type != bfd_link_hash_defined
- || (*sym_hash)->root.u.def.section != *csectpp))
- skip = true;
+ o->output_section->lineno_count += count;
- /* Skip local symbols if we are discarding them. */
- if (! skip
- && finfo->info->discard == discard_all
- && isym.n_sclass != C_EXT
- && (isym.n_sclass != C_HIDEXT
- || smtyp != XTY_SD))
- skip = true;
+ if (incls > 0)
+ {
+ struct internal_syment *iisp, *iispend;
+ long *iindp;
+ bfd_byte *oos;
+ int iiadd;
- /* If we stripping debugging symbols, and this is a debugging
- symbol, then skip it. */
- if (! skip
- && finfo->info->strip == strip_debugger
- && isym.n_scnum == N_DEBUG)
- skip = true;
-
- /* If some symbols are stripped based on the name, work out the
- name and decide whether to skip this symbol. We don't handle
- this correctly for symbols whose names are in the .debug
- section; to get it right we would need a new bfd_strtab_hash
- function to return the string given the index. */
- if (! skip
- && (finfo->info->strip == strip_some
- || finfo->info->discard == discard_l)
- && (debug_index == NULL || *debug_index == (unsigned long) -1))
- {
- const char *name;
- char buf[SYMNMLEN + 1];
+ /* Update any C_BINCL or C_EINCL symbols
+ that refer to a line number in the
+ range we just output. */
+ iisp = finfo->internal_syms;
+ iispend = (iisp
+ + obj_raw_syment_count (input_bfd));
+ iindp = finfo->sym_indices;
+ oos = finfo->outsyms;
+ while (iisp < iispend)
+ {
+ if (*iindp >= 0
+ && (iisp->n_sclass == C_BINCL
+ || iisp->n_sclass == C_EINCL)
+ && ((bfd_size_type) iisp->n_value
+ >= (bfd_size_type)(enclosing->line_filepos + linoff))
+ && ((bfd_size_type) iisp->n_value
+ < (enclosing->line_filepos
+ + enc_count * linesz)))
+ {
+ struct internal_syment iis;
- name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf);
+ bfd_coff_swap_sym_in (output_bfd,
+ (void *) oos,
+ (void *) &iis);
+ iis.n_value =
+ (iisp->n_value
+ - enclosing->line_filepos
+ - linoff
+ + aux.x_sym.x_fcnary.x_fcn.x_lnnoptr);
+ bfd_coff_swap_sym_out (output_bfd,
+ (void *) &iis,
+ (void *) oos);
+ --incls;
+ }
- if (name == NULL)
- return false;
+ iiadd = 1 + iisp->n_numaux;
+ if (*iindp >= 0)
+ oos += iiadd * osymesz;
+ iisp += iiadd;
+ iindp += iiadd;
+ }
+ }
+ }
+ }
+ }
- if ((finfo->info->strip == strip_some
- && (bfd_hash_lookup (finfo->info->keep_hash, name, false,
- false) == NULL))
- || (finfo->info->discard == discard_l
- && (isym.n_sclass != C_EXT
- && (isym.n_sclass != C_HIDEXT
- || smtyp != XTY_SD))
- && bfd_is_local_label_name (input_bfd, name)))
- skip = true;
+ bfd_coff_swap_aux_out (output_bfd, (void *) &aux, isymp->n_type,
+ isymp->n_sclass, i, isymp->n_numaux,
+ (void *) outsym);
+ outsym += osymesz;
+ esym += isymesz;
+ }
}
- /* We can not skip the first TOC anchor. */
- if (skip
- && require
- && finfo->info->strip != strip_all)
- skip = false;
+ indexp += add;
+ isymp += add;
+ csectpp += add;
+ }
- /* We now know whether we are to skip this symbol or not. */
- if (! skip)
+ /* If we swapped out a C_FILE symbol, guess that the next C_FILE
+ symbol will be the first symbol in the next input file. In the
+ normal case, this will save us from writing out the C_FILE symbol
+ again. */
+ if (finfo->last_file_index != -1
+ && (bfd_size_type) finfo->last_file_index >= syment_base)
+ {
+ finfo->last_file.n_value = output_index;
+ bfd_coff_swap_sym_out (output_bfd, (void *) &finfo->last_file,
+ (void *) (finfo->outsyms
+ + ((finfo->last_file_index - syment_base)
+ * osymesz)));
+ }
+
+ /* Write the modified symbols to the output file. */
+ if (outsym > finfo->outsyms)
+ {
+ file_ptr pos = obj_sym_filepos (output_bfd) + syment_base * osymesz;
+ bfd_size_type amt = outsym - finfo->outsyms;
+ if (bfd_seek (output_bfd, pos, SEEK_SET) != 0
+ || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt)
+ return FALSE;
+
+ BFD_ASSERT ((obj_raw_syment_count (output_bfd)
+ + (outsym - finfo->outsyms) / osymesz)
+ == output_index);
+
+ obj_raw_syment_count (output_bfd) = output_index;
+ }
+
+ /* Don't let the linker relocation routines discard the symbols. */
+ keep_syms = obj_coff_keep_syms (input_bfd);
+ obj_coff_keep_syms (input_bfd) = TRUE;
+
+ /* Relocate the contents of each section. */
+ for (o = input_bfd->sections; o != NULL; o = o->next)
+ {
+ bfd_byte *contents;
+
+ if (! o->linker_mark)
+ /* This section was omitted from the link. */
+ continue;
+
+ if ((o->flags & SEC_HAS_CONTENTS) == 0
+ || o->size == 0
+ || (o->flags & SEC_IN_MEMORY) != 0)
+ continue;
+
+ /* We have set filepos correctly for the sections we created to
+ represent csects, so bfd_get_section_contents should work. */
+ if (coff_section_data (input_bfd, o) != NULL
+ && coff_section_data (input_bfd, o)->contents != NULL)
+ contents = coff_section_data (input_bfd, o)->contents;
+ else
{
- /* Adjust the symbol in order to output it. */
+ bfd_size_type sz = o->rawsize ? o->rawsize : o->size;
+ if (!bfd_get_section_contents (input_bfd, o, finfo->contents, 0, sz))
+ return FALSE;
+ contents = finfo->contents;
+ }
- if (isym._n._n_n._n_zeroes == 0
- && isym._n._n_n._n_offset != 0)
+ if ((o->flags & SEC_RELOC) != 0)
+ {
+ int target_index;
+ struct internal_reloc *internal_relocs;
+ struct internal_reloc *irel;
+ bfd_vma offset;
+ struct internal_reloc *irelend;
+ struct xcoff_link_hash_entry **rel_hash;
+ long r_symndx;
+
+ /* Read in the relocs. */
+ target_index = o->output_section->target_index;
+ internal_relocs = (xcoff_read_internal_relocs
+ (input_bfd, o, FALSE, finfo->external_relocs,
+ TRUE,
+ (finfo->section_info[target_index].relocs
+ + o->output_section->reloc_count)));
+ if (internal_relocs == NULL)
+ return FALSE;
+
+ /* Call processor specific code to relocate the section
+ contents. */
+ if (! bfd_coff_relocate_section (output_bfd, finfo->info,
+ input_bfd, o,
+ contents,
+ internal_relocs,
+ finfo->internal_syms,
+ xcoff_data (input_bfd)->csects))
+ return FALSE;
+
+ offset = o->output_section->vma + o->output_offset - o->vma;
+ irel = internal_relocs;
+ irelend = irel + o->reloc_count;
+ rel_hash = (finfo->section_info[target_index].rel_hashes
+ + o->output_section->reloc_count);
+ for (; irel < irelend; irel++, rel_hash++)
{
- /* This symbol has a long name. Enter it in the string
- table we are building. If *debug_index != -1, the
- name has already been entered in the .debug section. */
- if (debug_index != NULL && *debug_index != (unsigned long) -1)
- isym._n._n_n._n_offset = *debug_index;
- else
- {
- const char *name;
- bfd_size_type indx;
+ struct xcoff_link_hash_entry *h = NULL;
+ struct internal_ldrel ldrel;
+ bfd_boolean quiet;
- name = _bfd_coff_internal_syment_name (input_bfd, &isym,
- (char *) NULL);
+ *rel_hash = NULL;
- if (name == NULL)
- return false;
- indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy);
- if (indx == (bfd_size_type) -1)
- return false;
- isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx;
- }
- }
+ /* Adjust the reloc address and symbol index. */
- if (isym.n_sclass != C_BSTAT
- && isym.n_sclass != C_ESTAT
- && isym.n_sclass != C_DECL
- && isym.n_scnum > 0)
- {
- isym.n_scnum = (*csectpp)->output_section->target_index;
- isym.n_value += ((*csectpp)->output_section->vma
- + (*csectpp)->output_offset
- - (*csectpp)->vma);
- }
+ irel->r_vaddr += offset;
- /* The value of a C_FILE symbol is the symbol index of the
- next C_FILE symbol. The value of the last C_FILE symbol
- is -1. We try to get this right, below, just before we
- write the symbols out, but in the general case we may
- have to write the symbol out twice. */
- if (isym.n_sclass == C_FILE)
- {
- if (finfo->last_file_index != -1
- && finfo->last_file.n_value != (bfd_vma) output_index)
+ r_symndx = irel->r_symndx;
+
+ if (r_symndx == -1)
+ h = NULL;
+ else
+ h = obj_xcoff_sym_hashes (input_bfd)[r_symndx];
+
+ if (r_symndx != -1 && finfo->info->strip != strip_all)
{
- /* We must correct the value of the last C_FILE entry. */
- finfo->last_file.n_value = output_index;
- if ((bfd_size_type) finfo->last_file_index >= syment_base)
+ if (h != NULL
+ && h->smclas != XMC_TD
+ && (irel->r_type == R_TOC
+ || irel->r_type == R_GL
+ || irel->r_type == R_TCL
+ || irel->r_type == R_TRL
+ || irel->r_type == R_TRLA))
{
- /* The last C_FILE symbol is in this input file. */
- bfd_coff_swap_sym_out (output_bfd,
- (PTR) &finfo->last_file,
- (PTR) (finfo->outsyms
- + ((finfo->last_file_index
- - syment_base)
- * osymesz)));
+ /* This is a TOC relative reloc with a symbol
+ attached. The symbol should be the one which
+ this reloc is for. We want to make this
+ reloc against the TOC address of the symbol,
+ not the symbol itself. */
+ BFD_ASSERT (h->toc_section != NULL);
+ BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
+ if (h->u.toc_indx != -1)
+ irel->r_symndx = h->u.toc_indx;
+ else
+ {
+ struct xcoff_toc_rel_hash *n;
+ struct xcoff_link_section_info *si;
+ bfd_size_type amt;
+
+ amt = sizeof (* n);
+ n = bfd_alloc (finfo->output_bfd, amt);
+ if (n == NULL)
+ return FALSE;
+ si = finfo->section_info + target_index;
+ n->next = si->toc_rel_hashes;
+ n->h = h;
+ n->rel = irel;
+ si->toc_rel_hashes = n;
+ }
}
- else
+ else if (h != NULL)
{
- /* We have already written out the last C_FILE
- symbol. We need to write it out again. We
- borrow *outsym temporarily. */
- bfd_coff_swap_sym_out (output_bfd,
- (PTR) &finfo->last_file,
- (PTR) outsym);
- if (bfd_seek (output_bfd,
- (obj_sym_filepos (output_bfd)
- + finfo->last_file_index * osymesz),
- SEEK_SET) != 0
- || (bfd_write (outsym, osymesz, 1, output_bfd)
- != osymesz))
- return false;
+ /* This is a global symbol. */
+ if (h->indx >= 0)
+ irel->r_symndx = h->indx;
+ else
+ {
+ /* This symbol is being written at the end
+ of the file, and we do not yet know the
+ symbol index. We save the pointer to the
+ hash table entry in the rel_hash list.
+ We set the indx field to -2 to indicate
+ that this symbol must not be stripped. */
+ *rel_hash = h;
+ h->indx = -2;
+ }
}
- }
+ else
+ {
+ long indx;
- finfo->last_file_index = output_index;
- finfo->last_file = isym;
- }
+ indx = finfo->sym_indices[r_symndx];
- /* The value of a C_BINCL or C_EINCL symbol is a file offset
- into the line numbers. We update the symbol values when
- we handle the line numbers. */
- if (isym.n_sclass == C_BINCL
- || isym.n_sclass == C_EINCL)
- {
- isym.n_value = finfo->line_filepos;
- ++incls;
- }
+ if (indx == -1)
+ {
+ struct internal_syment *is;
+
+ /* Relocations against a TC0 TOC anchor are
+ automatically transformed to be against
+ the TOC anchor in the output file. */
+ is = finfo->internal_syms + r_symndx;
+ if (is->n_sclass == C_HIDEXT
+ && is->n_numaux > 0)
+ {
+ void * auxptr;
+ union internal_auxent aux;
+
+ auxptr = ((void *)
+ (((bfd_byte *)
+ obj_coff_external_syms (input_bfd))
+ + ((r_symndx + is->n_numaux)
+ * isymesz)));
+ bfd_coff_swap_aux_in (input_bfd, auxptr,
+ is->n_type, is->n_sclass,
+ is->n_numaux - 1,
+ is->n_numaux,
+ (void *) &aux);
+ if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD
+ && aux.x_csect.x_smclas == XMC_TC0)
+ indx = finfo->toc_symindx;
+ }
+ }
- /* Output the symbol. */
+ if (indx != -1)
+ irel->r_symndx = indx;
+ else
+ {
- bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym);
+ struct internal_syment *is;
- *indexp = output_index;
+ const char *name;
+ char buf[SYMNMLEN + 1];
- if (isym.n_sclass == C_EXT)
- {
- long indx;
- struct xcoff_link_hash_entry *h;
+ /* This reloc is against a symbol we are
+ stripping. It would be possible to handle
+ this case, but I don't think it's worth it. */
+ is = finfo->internal_syms + r_symndx;
- indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd))
- / isymesz);
- h = obj_xcoff_sym_hashes (input_bfd)[indx];
- BFD_ASSERT (h != NULL);
- h->indx = output_index;
- }
+ name = (_bfd_coff_internal_syment_name
+ (input_bfd, is, buf));
- /* If this is a symbol in the TOC which we may have merged
- (class XMC_TC), remember the symbol index of the TOC
- symbol. */
- if (isym.n_sclass == C_HIDEXT
- && aux.x_csect.x_smclas == XMC_TC
- && *sym_hash != NULL)
- {
- BFD_ASSERT (((*sym_hash)->flags & XCOFF_SET_TOC) == 0);
- BFD_ASSERT ((*sym_hash)->toc_section != NULL);
- (*sym_hash)->u.toc_indx = output_index;
+ if (name == NULL)
+ return FALSE;
+
+ if (! ((*finfo->info->callbacks->unattached_reloc)
+ (finfo->info, name, input_bfd, o,
+ irel->r_vaddr)))
+ return FALSE;
+ }
+ }
+ }
+
+ quiet = FALSE;
+ switch (irel->r_type)
+ {
+ default:
+ if (h == NULL
+ || h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak
+ || h->root.type == bfd_link_hash_common)
+ break;
+ /* Fall through. */
+ case R_POS:
+ case R_NEG:
+ case R_RL:
+ case R_RLA:
+ /* This reloc needs to be copied into the .loader
+ section. */
+ ldrel.l_vaddr = irel->r_vaddr;
+ if (r_symndx == -1)
+ ldrel.l_symndx = -(bfd_size_type ) 1;
+ else if (h == NULL
+ || (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak
+ || h->root.type == bfd_link_hash_common))
+ {
+ asection *sec;
+
+ if (h == NULL)
+ sec = xcoff_data (input_bfd)->csects[r_symndx];
+ else if (h->root.type == bfd_link_hash_common)
+ sec = h->root.u.c.p->section;
+ else
+ sec = h->root.u.def.section;
+ sec = sec->output_section;
+
+ if (strcmp (sec->name, ".text") == 0)
+ ldrel.l_symndx = 0;
+ else if (strcmp (sec->name, ".data") == 0)
+ ldrel.l_symndx = 1;
+ else if (strcmp (sec->name, ".bss") == 0)
+ ldrel.l_symndx = 2;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%B: loader reloc in unrecognized section `%A'"),
+ input_bfd, sec);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
+ }
+ else
+ {
+ if (! finfo->info->relocatable
+ && (h->flags & XCOFF_DEF_DYNAMIC) == 0
+ && (h->flags & XCOFF_IMPORT) == 0)
+ {
+ /* We already called the undefined_symbol
+ callback for this relocation, in
+ _bfd_ppc_xcoff_relocate_section. Don't
+ issue any more warnings. */
+ quiet = TRUE;
+ }
+ if (h->ldindx < 0 && ! quiet)
+ {
+ (*_bfd_error_handler)
+ (_("%B: `%s' in loader reloc but not loader sym"),
+ input_bfd,
+ h->root.root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ ldrel.l_symndx = h->ldindx;
+ }
+ ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
+ ldrel.l_rsecnm = o->output_section->target_index;
+ if (xcoff_hash_table (finfo->info)->textro
+ && strcmp (o->output_section->name, ".text") == 0
+ && ! quiet)
+ {
+ (*_bfd_error_handler)
+ (_("%B: loader reloc in read-only section %A"),
+ input_bfd, o->output_section);
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel,
+ finfo->ldrel);
+
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+ break;
+
+ case R_TOC:
+ case R_GL:
+ case R_TCL:
+ case R_TRL:
+ case R_TRLA:
+ /* We should never need a .loader reloc for a TOC
+ relative reloc. */
+ break;
+ }
}
- output_index += add;
- outsym += add * osymesz;
+ o->output_section->reloc_count += o->reloc_count;
}
- esym += add * isymesz;
- isymp += add;
- csectpp += add;
- sym_hash += add;
- if (debug_index != NULL)
- debug_index += add;
- ++indexp;
- for (--add; add > 0; --add)
- *indexp++ = -1;
+ /* Write out the modified section contents. */
+ if (! bfd_set_section_contents (output_bfd, o->output_section,
+ contents, (file_ptr) o->output_offset,
+ o->size))
+ return FALSE;
}
- /* Fix up the aux entries and the C_BSTAT symbols. This must be
- done in a separate pass, because we don't know the correct symbol
- indices until we have already decided which symbols we are going
- to keep. */
+ obj_coff_keep_syms (input_bfd) = keep_syms;
- esym = (bfd_byte *) obj_coff_external_syms (input_bfd);
- esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz;
- isymp = finfo->internal_syms;
- indexp = finfo->sym_indices;
- csectpp = xcoff_data (input_bfd)->csects;
+ if (! finfo->info->keep_memory)
+ {
+ if (! _bfd_coff_free_symbols (input_bfd))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+#undef N_TMASK
+#undef N_BTSHFT
+
+/* Sort relocs by VMA. This is called via qsort. */
+
+static int
+xcoff_sort_relocs (const void * p1, const void * p2)
+{
+ const struct internal_reloc *r1 = (const struct internal_reloc *) p1;
+ const struct internal_reloc *r2 = (const struct internal_reloc *) p2;
+
+ if (r1->r_vaddr > r2->r_vaddr)
+ return 1;
+ else if (r1->r_vaddr < r2->r_vaddr)
+ return -1;
+ else
+ return 0;
+}
+
+/* Write out a non-XCOFF global symbol. */
+
+static bfd_boolean
+xcoff_write_global_symbol (struct xcoff_link_hash_entry *h, void * inf)
+{
+ struct xcoff_final_link_info *finfo = (struct xcoff_final_link_info *) inf;
+ bfd *output_bfd;
+ bfd_byte *outsym;
+ struct internal_syment isym;
+ union internal_auxent aux;
+ bfd_boolean result;
+ file_ptr pos;
+ bfd_size_type amt;
+
+ output_bfd = finfo->output_bfd;
outsym = finfo->outsyms;
- while (esym < esym_end)
+
+ if (h->root.type == bfd_link_hash_warning)
{
- int add;
+ h = (struct xcoff_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_new)
+ return TRUE;
+ }
- add = 1 + isymp->n_numaux;
+ /* If this symbol was garbage collected, just skip it. */
+ if (xcoff_hash_table (finfo->info)->gc
+ && (h->flags & XCOFF_MARK) == 0)
+ return TRUE;
- if (*indexp < 0)
- esym += add * isymesz;
- else
+ /* If we need a .loader section entry, write it out. */
+ if (h->ldsym != NULL)
+ {
+ struct internal_ldsym *ldsym;
+ bfd *impbfd;
+
+ ldsym = h->ldsym;
+
+ if (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
{
- int i;
- if (isymp->n_sclass == C_BSTAT)
- {
- struct internal_syment isym;
+ ldsym->l_value = 0;
+ ldsym->l_scnum = N_UNDEF;
+ ldsym->l_smtype = XTY_ER;
+ impbfd = h->root.u.undef.abfd;
- bfd_vma indx;
+ }
+ else if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ asection *sec;
- /* The value of a C_BSTAT symbol is the symbol table
- index of the containing csect. */
- bfd_coff_swap_sym_in (output_bfd, (PTR) outsym, (PTR) &isym);
- indx = isym.n_value;
- if (indx < obj_raw_syment_count (input_bfd))
- {
- long symindx;
+ sec = h->root.u.def.section;
+ ldsym->l_value = (sec->output_section->vma
+ + sec->output_offset
+ + h->root.u.def.value);
+ ldsym->l_scnum = sec->output_section->target_index;
+ ldsym->l_smtype = XTY_SD;
+ impbfd = sec->owner;
- symindx = finfo->sym_indices[indx];
- if (symindx < 0)
- isym.n_value = 0;
- else
- isym.n_value = symindx;
- bfd_coff_swap_sym_out (output_bfd, (PTR) &isym,
- (PTR) outsym);
- }
- }
+ }
+ else
+ abort ();
- esym += isymesz;
- outsym += osymesz;
+ if (((h->flags & XCOFF_DEF_REGULAR) == 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
+ || (h->flags & XCOFF_IMPORT) != 0)
+ /* Clear l_smtype
+ Import symbols are defined so the check above will make
+ the l_smtype XTY_SD. But this is not correct, it should
+ be cleared. */
+ ldsym->l_smtype |= L_IMPORT;
- for (i = 0; i < isymp->n_numaux && esym < esym_end; i++)
- {
- union internal_auxent aux;
+ if (((h->flags & XCOFF_DEF_REGULAR) != 0
+ && (h->flags & XCOFF_DEF_DYNAMIC) != 0)
+ || (h->flags & XCOFF_EXPORT) != 0)
+ ldsym->l_smtype |= L_EXPORT;
- bfd_coff_swap_aux_in (input_bfd, (PTR) esym, isymp->n_type,
- isymp->n_sclass, i, isymp->n_numaux,
- (PTR) &aux);
+ if ((h->flags & XCOFF_ENTRY) != 0)
+ ldsym->l_smtype |= L_ENTRY;
- if (isymp->n_sclass == C_FILE)
- {
- /* This is the file name (or some comment put in by
- the compiler). If it is long, we must put it in
- the string table. */
- if (aux.x_file.x_n.x_zeroes == 0
- && aux.x_file.x_n.x_offset != 0)
- {
- const char *filename;
- bfd_size_type indx;
+ if ((h->flags & XCOFF_RTINIT) != 0)
+ ldsym->l_smtype = XTY_SD;
- BFD_ASSERT (aux.x_file.x_n.x_offset
- >= STRING_SIZE_SIZE);
- if (strings == NULL)
- {
- strings = _bfd_coff_read_string_table (input_bfd);
- if (strings == NULL)
- return false;
- }
- filename = strings + aux.x_file.x_n.x_offset;
- indx = _bfd_stringtab_add (finfo->strtab, filename,
- hash, copy);
- if (indx == (bfd_size_type) -1)
- return false;
- aux.x_file.x_n.x_offset = STRING_SIZE_SIZE + indx;
- }
- }
- else if ((isymp->n_sclass == C_EXT
- || isymp->n_sclass == C_HIDEXT)
- && i + 1 == isymp->n_numaux)
- {
+ ldsym->l_smclas = h->smclas;
- /* We don't support type checking. I don't know if
- anybody does. */
- aux.x_csect.x_parmhash = 0;
- /* I don't think anybody uses these fields, but we'd
- better clobber them just in case. */
- aux.x_csect.x_stab = 0;
- aux.x_csect.x_snstab = 0;
+ if (ldsym->l_smtype & L_IMPORT)
+ {
+ if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && (h->root.u.def.value != 0))
+ ldsym->l_smclas = XMC_XO;
- if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_LD)
- {
- bfd_signed_vma indx;
+ else if ((h->flags & (XCOFF_SYSCALL32 | XCOFF_SYSCALL64)) ==
+ (XCOFF_SYSCALL32 | XCOFF_SYSCALL64))
+ ldsym->l_smclas = XMC_SV3264;
+ else if (h->flags & XCOFF_SYSCALL32)
+ ldsym->l_smclas = XMC_SV;
- indx = aux.x_csect.x_scnlen.l;
- if (indx < obj_raw_syment_count (input_bfd))
- {
- long symindx;
+ else if (h->flags & XCOFF_SYSCALL64)
+ ldsym->l_smclas = XMC_SV64;
+ }
- symindx = finfo->sym_indices[indx];
- if (symindx < 0) {
- aux.x_csect.x_scnlen.l = 0;
- } else {
- aux.x_csect.x_scnlen.l = symindx;
- }
- }
- }
- }
- else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL)
- {
- unsigned long indx;
+ if (ldsym->l_ifile == -(bfd_size_type) 1)
+ {
+ ldsym->l_ifile = 0;
+ }
+ else if (ldsym->l_ifile == 0)
+ {
+ if ((ldsym->l_smtype & L_IMPORT) == 0)
+ ldsym->l_ifile = 0;
+ else if (impbfd == NULL)
+ ldsym->l_ifile = 0;
+ else
+ {
+ BFD_ASSERT (impbfd->xvec == output_bfd->xvec);
+ ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
+ }
+ }
- if (ISFCN (isymp->n_type)
- || ISTAG (isymp->n_sclass)
- || isymp->n_sclass == C_BLOCK
- || isymp->n_sclass == C_FCN)
- {
- indx = aux.x_sym.x_fcnary.x_fcn.x_endndx.l;
- if (indx > 0
- && indx < obj_raw_syment_count (input_bfd))
- {
- /* We look forward through the symbol for
- the index of the next symbol we are going
- to include. I don't know if this is
- entirely right. */
- while (finfo->sym_indices[indx] < 0
- && indx < obj_raw_syment_count (input_bfd))
- ++indx;
- if (indx >= obj_raw_syment_count (input_bfd))
- indx = output_index;
- else
- indx = finfo->sym_indices[indx];
- aux.x_sym.x_fcnary.x_fcn.x_endndx.l = indx;
+ ldsym->l_parm = 0;
- }
- }
+ BFD_ASSERT (h->ldindx >= 0);
- indx = aux.x_sym.x_tagndx.l;
- if (indx > 0 && indx < obj_raw_syment_count (input_bfd))
- {
- long symindx;
+ bfd_xcoff_swap_ldsym_out (output_bfd, ldsym,
+ (finfo->ldsym +
+ (h->ldindx - 3)
+ * bfd_xcoff_ldsymsz(finfo->output_bfd)));
+ h->ldsym = NULL;
+ }
- symindx = finfo->sym_indices[indx];
- if (symindx < 0)
- aux.x_sym.x_tagndx.l = 0;
- else
- aux.x_sym.x_tagndx.l = symindx;
- }
+ /* If this symbol needs global linkage code, write it out. */
+ if (h->root.type == bfd_link_hash_defined
+ && (h->root.u.def.section
+ == xcoff_hash_table (finfo->info)->linkage_section))
+ {
+ bfd_byte *p;
+ bfd_vma tocoff;
+ unsigned int i;
+
+ p = h->root.u.def.section->contents + h->root.u.def.value;
+
+ /* The first instruction in the global linkage code loads a
+ specific TOC element. */
+ tocoff = (h->descriptor->toc_section->output_section->vma
+ + h->descriptor->toc_section->output_offset
+ - xcoff_data (output_bfd)->toc);
+
+ if ((h->descriptor->flags & XCOFF_SET_TOC) != 0)
+ tocoff += h->descriptor->u.toc_offset;
+
+ /* The first instruction in the glink code needs to be
+ cooked to to hold the correct offset in the toc. The
+ rest are just output raw. */
+ bfd_put_32 (output_bfd,
+ bfd_xcoff_glink_code(output_bfd, 0) | (tocoff & 0xffff), p);
+
+ /* Start with i == 1 to get past the first instruction done above
+ The /4 is because the glink code is in bytes and we are going
+ 4 at a pop. */
+ for (i = 1; i < bfd_xcoff_glink_code_size(output_bfd) / 4; i++)
+ bfd_put_32 (output_bfd,
+ (bfd_vma) bfd_xcoff_glink_code(output_bfd, i),
+ &p[4 * i]);
+ }
- }
+ /* If we created a TOC entry for this symbol, write out the required
+ relocs. */
+ if ((h->flags & XCOFF_SET_TOC) != 0)
+ {
+ asection *tocsec;
+ asection *osec;
+ int oindx;
+ struct internal_reloc *irel;
+ struct internal_ldrel ldrel;
+ struct internal_syment irsym;
+ union internal_auxent iraux;
- /* Copy over the line numbers, unless we are stripping
- them. We do this on a symbol by symbol basis in
- order to more easily handle garbage collection. */
- if ((isymp->n_sclass == C_EXT
- || isymp->n_sclass == C_HIDEXT)
- && i == 0
- && isymp->n_numaux > 1
- && ISFCN (isymp->n_type)
- && aux.x_sym.x_fcnary.x_fcn.x_lnnoptr != 0)
- {
- if (finfo->info->strip != strip_none
- && finfo->info->strip != strip_some)
- aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0;
- else
- {
- asection *enclosing;
- unsigned int enc_count;
- bfd_signed_vma linoff;
- struct internal_lineno lin;
+ tocsec = h->toc_section;
+ osec = tocsec->output_section;
+ oindx = osec->target_index;
+ irel = finfo->section_info[oindx].relocs + osec->reloc_count;
+ irel->r_vaddr = (osec->vma
+ + tocsec->output_offset
+ + h->u.toc_offset);
- o = *csectpp;
- enclosing = xcoff_section_data (abfd, o)->enclosing;
- enc_count = xcoff_section_data (abfd, o)->lineno_count;
- if (oline != enclosing)
- {
- if (bfd_seek (input_bfd,
- enclosing->line_filepos,
- SEEK_SET) != 0
- || (bfd_read (finfo->linenos, linesz,
- enc_count, input_bfd)
- != linesz * enc_count))
- return false;
- oline = enclosing;
- }
+ if (h->indx >= 0)
+ irel->r_symndx = h->indx;
+ else
+ {
+ h->indx = -2;
+ irel->r_symndx = obj_raw_syment_count (output_bfd);
+ }
- linoff = (aux.x_sym.x_fcnary.x_fcn.x_lnnoptr
- - enclosing->line_filepos);
+ BFD_ASSERT (h->ldindx >= 0);
- bfd_coff_swap_lineno_in (input_bfd,
- (PTR) (finfo->linenos + linoff),
- (PTR) &lin);
- if (lin.l_lnno != 0
- || ((bfd_size_type) lin.l_addr.l_symndx
- != ((esym
- - isymesz
- - ((bfd_byte *)
- obj_coff_external_syms (input_bfd)))
- / isymesz)))
- aux.x_sym.x_fcnary.x_fcn.x_lnnoptr = 0;
- else
- {
- bfd_byte *linpend, *linp;
- bfd_vma offset;
- bfd_size_type count;
+ /* Initialize the aux union here instead of closer to when it is
+ written out below because the length of the csect depends on
+ whether the output is 32 or 64 bit. */
+ memset (&iraux, 0, sizeof iraux);
+ iraux.x_csect.x_smtyp = XTY_SD;
+ /* iraux.x_csect.x_scnlen.l = 4 or 8, see below. */
+ iraux.x_csect.x_smclas = XMC_TC;
- lin.l_addr.l_symndx = *indexp;
- bfd_coff_swap_lineno_out (output_bfd, (PTR) &lin,
- (PTR) (finfo->linenos
- + linoff));
+ /* 32 bit uses a 32 bit R_POS to do the relocations
+ 64 bit uses a 64 bit R_POS to do the relocations
- linpend = (finfo->linenos
- + enc_count * linesz);
- offset = (o->output_section->vma
- + o->output_offset
- - o->vma);
- for (linp = finfo->linenos + linoff + linesz;
- linp < linpend;
- linp += linesz)
- {
- bfd_coff_swap_lineno_in (input_bfd, (PTR) linp,
- (PTR) &lin);
- if (lin.l_lnno == 0)
- break;
- lin.l_addr.l_paddr += offset;
- bfd_coff_swap_lineno_out (output_bfd,
- (PTR) &lin,
- (PTR) linp);
- }
+ Also needs to change the csect size : 4 for 32 bit, 8 for 64 bit
- count = (linp - (finfo->linenos + linoff)) / linesz;
+ Which one is determined by the backend. */
+ if (bfd_xcoff_is_xcoff64 (output_bfd))
+ {
+ irel->r_size = 63;
+ iraux.x_csect.x_scnlen.l = 8;
+ }
+ else if (bfd_xcoff_is_xcoff32 (output_bfd))
+ {
+ irel->r_size = 31;
+ iraux.x_csect.x_scnlen.l = 4;
+ }
+ else
+ return FALSE;
- aux.x_sym.x_fcnary.x_fcn.x_lnnoptr =
- (o->output_section->line_filepos
- + o->output_section->lineno_count * linesz);
+ irel->r_type = R_POS;
+ finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
+ ++osec->reloc_count;
- if (bfd_seek (output_bfd,
- aux.x_sym.x_fcnary.x_fcn.x_lnnoptr,
- SEEK_SET) != 0
- || (bfd_write (finfo->linenos + linoff,
- linesz, count, output_bfd)
- != linesz * count))
- return false;
+ ldrel.l_vaddr = irel->r_vaddr;
+ ldrel.l_symndx = h->ldindx;
+ ldrel.l_rtype = (irel->r_size << 8) | R_POS;
+ ldrel.l_rsecnm = oindx;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
- o->output_section->lineno_count += count;
+ /* We need to emit a symbol to define a csect which holds
+ the reloc. */
+ if (finfo->info->strip != strip_all)
+ {
+ result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab,
+ &irsym, h->root.root.string);
+ if (!result)
+ return FALSE;
+
+ irsym.n_value = irel->r_vaddr;
+ irsym.n_scnum = osec->target_index;
+ irsym.n_sclass = C_HIDEXT;
+ irsym.n_type = T_NULL;
+ irsym.n_numaux = 1;
+
+ bfd_coff_swap_sym_out (output_bfd, (void *) &irsym, (void *) outsym);
+ outsym += bfd_coff_symesz (output_bfd);
+
+ /* Note : iraux is initialized above. */
+ bfd_coff_swap_aux_out (output_bfd, (void *) &iraux, T_NULL, C_HIDEXT,
+ 0, 1, (void *) outsym);
+ outsym += bfd_coff_auxesz (output_bfd);
+
+ if (h->indx >= 0)
+ {
+ /* We aren't going to write out the symbols below, so we
+ need to write them out now. */
+ pos = obj_sym_filepos (output_bfd);
+ pos += (obj_raw_syment_count (output_bfd)
+ * bfd_coff_symesz (output_bfd));
+ amt = outsym - finfo->outsyms;
+ if (bfd_seek (output_bfd, pos, SEEK_SET) != 0
+ || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt)
+ return FALSE;
+ obj_raw_syment_count (output_bfd) +=
+ (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd);
- if (incls > 0)
- {
- struct internal_syment *iisp, *iispend;
- long *iindp;
- bfd_byte *oos;
- int iiadd;
+ outsym = finfo->outsyms;
+ }
+ }
+ }
- /* Update any C_BINCL or C_EINCL symbols
- that refer to a line number in the
- range we just output. */
- iisp = finfo->internal_syms;
- iispend = (iisp
- + obj_raw_syment_count (input_bfd));
- iindp = finfo->sym_indices;
- oos = finfo->outsyms;
- while (iisp < iispend)
- {
- if (*iindp >= 0
- && (iisp->n_sclass == C_BINCL
- || iisp->n_sclass == C_EINCL)
- && ((bfd_size_type) iisp->n_value
- >= (bfd_size_type)(enclosing->line_filepos + linoff))
- && ((bfd_size_type) iisp->n_value
- < (enclosing->line_filepos
- + enc_count * linesz)))
- {
- struct internal_syment iis;
+ /* If this symbol is a specially defined function descriptor, write
+ it out. The first word is the address of the function code
+ itself, the second word is the address of the TOC, and the third
+ word is zero.
- bfd_coff_swap_sym_in (output_bfd,
- (PTR) oos,
- (PTR) &iis);
- iis.n_value =
- (iisp->n_value
- - enclosing->line_filepos
- - linoff
- + aux.x_sym.x_fcnary.x_fcn.x_lnnoptr);
- bfd_coff_swap_sym_out (output_bfd,
- (PTR) &iis,
- (PTR) oos);
- --incls;
- }
+ 32 bit vs 64 bit
+ The addresses for the 32 bit will take 4 bytes and the addresses
+ for 64 bit will take 8 bytes. Similar for the relocs. This type
+ of logic was also done above to create a TOC entry in
+ xcoff_write_global_symbol. */
+ if ((h->flags & XCOFF_DESCRIPTOR) != 0
+ && h->root.type == bfd_link_hash_defined
+ && (h->root.u.def.section
+ == xcoff_hash_table (finfo->info)->descriptor_section))
+ {
+ asection *sec;
+ asection *osec;
+ int oindx;
+ bfd_byte *p;
+ struct xcoff_link_hash_entry *hentry;
+ asection *esec;
+ struct internal_reloc *irel;
+ struct internal_ldrel ldrel;
+ asection *tsec;
+ unsigned int reloc_size, byte_size;
- iiadd = 1 + iisp->n_numaux;
- if (*iindp >= 0)
- oos += iiadd * osymesz;
- iisp += iiadd;
- iindp += iiadd;
- }
- }
- }
- }
- }
+ if (bfd_xcoff_is_xcoff64 (output_bfd))
+ {
+ reloc_size = 63;
+ byte_size = 8;
+ }
+ else if (bfd_xcoff_is_xcoff32 (output_bfd))
+ {
+ reloc_size = 31;
+ byte_size = 4;
+ }
+ else
+ return FALSE;
- bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, isymp->n_type,
- isymp->n_sclass, i, isymp->n_numaux,
- (PTR) outsym);
- outsym += osymesz;
- esym += isymesz;
- }
+ sec = h->root.u.def.section;
+ osec = sec->output_section;
+ oindx = osec->target_index;
+ p = sec->contents + h->root.u.def.value;
+
+ hentry = h->descriptor;
+ BFD_ASSERT (hentry != NULL
+ && (hentry->root.type == bfd_link_hash_defined
+ || hentry->root.type == bfd_link_hash_defweak));
+ esec = hentry->root.u.def.section;
+
+ irel = finfo->section_info[oindx].relocs + osec->reloc_count;
+ irel->r_vaddr = (osec->vma
+ + sec->output_offset
+ + h->root.u.def.value);
+ irel->r_symndx = esec->output_section->target_index;
+ irel->r_type = R_POS;
+ irel->r_size = reloc_size;
+ finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
+ ++osec->reloc_count;
+
+ ldrel.l_vaddr = irel->r_vaddr;
+ if (strcmp (esec->output_section->name, ".text") == 0)
+ ldrel.l_symndx = 0;
+ else if (strcmp (esec->output_section->name, ".data") == 0)
+ ldrel.l_symndx = 1;
+ else if (strcmp (esec->output_section->name, ".bss") == 0)
+ ldrel.l_symndx = 2;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s: loader reloc in unrecognized section `%s'"),
+ bfd_get_filename (output_bfd),
+ esec->output_section->name);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
+ ldrel.l_rtype = (reloc_size << 8) | R_POS;
+ ldrel.l_rsecnm = oindx;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+
+ /* There are three items to write out,
+ the address of the code
+ the address of the toc anchor
+ the environment pointer.
+ We are ignoring the environment pointer. So set it to zero. */
+ if (bfd_xcoff_is_xcoff64 (output_bfd))
+ {
+ bfd_put_64 (output_bfd,
+ (esec->output_section->vma + esec->output_offset
+ + hentry->root.u.def.value),
+ p);
+ bfd_put_64 (output_bfd, xcoff_data (output_bfd)->toc, p + 8);
+ bfd_put_64 (output_bfd, (bfd_vma) 0, p + 16);
+ }
+ else
+ {
+ /* 32 bit backend
+ This logic was already called above so the error case where
+ the backend is neither has already been checked. */
+ bfd_put_32 (output_bfd,
+ (esec->output_section->vma + esec->output_offset
+ + hentry->root.u.def.value),
+ p);
+ bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4);
+ bfd_put_32 (output_bfd, (bfd_vma) 0, p + 8);
+ }
+
+ tsec = coff_section_from_bfd_index (output_bfd,
+ xcoff_data (output_bfd)->sntoc);
+
+ ++irel;
+ irel->r_vaddr = (osec->vma
+ + sec->output_offset
+ + h->root.u.def.value
+ + byte_size);
+ irel->r_symndx = tsec->output_section->target_index;
+ irel->r_type = R_POS;
+ irel->r_size = reloc_size;
+ finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
+ ++osec->reloc_count;
+
+ ldrel.l_vaddr = irel->r_vaddr;
+ if (strcmp (tsec->output_section->name, ".text") == 0)
+ ldrel.l_symndx = 0;
+ else if (strcmp (tsec->output_section->name, ".data") == 0)
+ ldrel.l_symndx = 1;
+ else if (strcmp (tsec->output_section->name, ".bss") == 0)
+ ldrel.l_symndx = 2;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s: loader reloc in unrecognized section `%s'"),
+ bfd_get_filename (output_bfd),
+ tsec->output_section->name);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
}
+ ldrel.l_rtype = (reloc_size << 8) | R_POS;
+ ldrel.l_rsecnm = oindx;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+ }
- indexp += add;
- isymp += add;
- csectpp += add;
+ if (h->indx >= 0 || finfo->info->strip == strip_all)
+ {
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return TRUE;
}
- /* If we swapped out a C_FILE symbol, guess that the next C_FILE
- symbol will be the first symbol in the next input file. In the
- normal case, this will save us from writing out the C_FILE symbol
- again. */
- if (finfo->last_file_index != -1
- && (bfd_size_type) finfo->last_file_index >= syment_base)
+ if (h->indx != -2
+ && (finfo->info->strip == strip_all
+ || (finfo->info->strip == strip_some
+ && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string,
+ FALSE, FALSE) == NULL)))
{
- finfo->last_file.n_value = output_index;
- bfd_coff_swap_sym_out (output_bfd, (PTR) &finfo->last_file,
- (PTR) (finfo->outsyms
- + ((finfo->last_file_index - syment_base)
- * osymesz)));
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return TRUE;
}
- /* Write the modified symbols to the output file. */
- if (outsym > finfo->outsyms)
+ if (h->indx != -2
+ && (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0)
{
- if (bfd_seek (output_bfd,
- obj_sym_filepos (output_bfd) + syment_base * osymesz,
- SEEK_SET) != 0
- || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1,
- output_bfd)
- != (bfd_size_type) (outsym - finfo->outsyms)))
- return false;
+ BFD_ASSERT (outsym == finfo->outsyms);
+ return TRUE;
+ }
- BFD_ASSERT ((obj_raw_syment_count (output_bfd)
- + (outsym - finfo->outsyms) / osymesz)
- == output_index);
+ memset (&aux, 0, sizeof aux);
- obj_raw_syment_count (output_bfd) = output_index;
- }
+ h->indx = obj_raw_syment_count (output_bfd);
- /* Don't let the linker relocation routines discard the symbols. */
- keep_syms = obj_coff_keep_syms (input_bfd);
- obj_coff_keep_syms (input_bfd) = true;
+ result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &isym,
+ h->root.root.string);
+ if (!result)
+ return FALSE;
- /* Relocate the contents of each section. */
- for (o = input_bfd->sections; o != NULL; o = o->next) {
-
- bfd_byte *contents;
+ if (h->root.type == bfd_link_hash_undefined
+ || h->root.type == bfd_link_hash_undefweak)
+ {
+ isym.n_value = 0;
+ isym.n_scnum = N_UNDEF;
+ isym.n_sclass = C_EXT;
+ aux.x_csect.x_smtyp = XTY_ER;
+ }
+ else if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->smclas == XMC_XO)
+ {
+ BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section));
+ isym.n_value = h->root.u.def.value;
+ isym.n_scnum = N_UNDEF;
+ isym.n_sclass = C_EXT;
+ aux.x_csect.x_smtyp = XTY_ER;
+ }
+ else if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ struct xcoff_link_size_list *l;
+
+ isym.n_value = (h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset
+ + h->root.u.def.value);
+ if (bfd_is_abs_section (h->root.u.def.section->output_section))
+ isym.n_scnum = N_ABS;
+ else
+ isym.n_scnum = h->root.u.def.section->output_section->target_index;
+ isym.n_sclass = C_HIDEXT;
+ aux.x_csect.x_smtyp = XTY_SD;
- if (! o->linker_mark){
- /* This section was omitted from the link. */
- continue;
+ if ((h->flags & XCOFF_HAS_SIZE) != 0)
+ {
+ for (l = xcoff_hash_table (finfo->info)->size_list;
+ l != NULL;
+ l = l->next)
+ {
+ if (l->h == h)
+ {
+ aux.x_csect.x_scnlen.l = l->size;
+ break;
+ }
+ }
+ }
+ }
+ else if (h->root.type == bfd_link_hash_common)
+ {
+ isym.n_value = (h->root.u.c.p->section->output_section->vma
+ + h->root.u.c.p->section->output_offset);
+ isym.n_scnum = h->root.u.c.p->section->output_section->target_index;
+ isym.n_sclass = C_EXT;
+ aux.x_csect.x_smtyp = XTY_CM;
+ aux.x_csect.x_scnlen.l = h->root.u.c.size;
}
+ else
+ abort ();
+
+ isym.n_type = T_NULL;
+ isym.n_numaux = 1;
+
+ bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym);
+ outsym += bfd_coff_symesz (output_bfd);
+
+ aux.x_csect.x_smclas = h->smclas;
+ bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, isym.n_sclass, 0, 1,
+ (void *) outsym);
+ outsym += bfd_coff_auxesz (output_bfd);
- if ((o->flags & SEC_HAS_CONTENTS) == 0
- || o->_raw_size == 0
- || (o->flags & SEC_IN_MEMORY) != 0)
- continue;
-
- /* We have set filepos correctly for the sections we created to
- represent csects, so bfd_get_section_contents should work. */
- if (coff_section_data (input_bfd, o) != NULL
- && coff_section_data (input_bfd, o)->contents != NULL)
- contents = coff_section_data (input_bfd, o)->contents;
- else {
- if (! bfd_get_section_contents (input_bfd, o, finfo->contents,
- (file_ptr) 0, o->_raw_size))
- return false;
- contents = finfo->contents;
+ if ((h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && h->smclas != XMC_XO)
+ {
+ /* We just output an SD symbol. Now output an LD symbol. */
+ h->indx += 2;
+
+ isym.n_sclass = C_EXT;
+ bfd_coff_swap_sym_out (output_bfd, (void *) &isym, (void *) outsym);
+ outsym += bfd_coff_symesz (output_bfd);
+
+ aux.x_csect.x_smtyp = XTY_LD;
+ aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd);
+ bfd_coff_swap_aux_out (output_bfd, (void *) &aux, T_NULL, C_EXT, 0, 1,
+ (void *) outsym);
+ outsym += bfd_coff_auxesz (output_bfd);
}
- if ((o->flags & SEC_RELOC) != 0) {
- int target_index;
- struct internal_reloc *internal_relocs;
- struct internal_reloc *irel;
- bfd_vma offset;
- struct internal_reloc *irelend;
- struct xcoff_link_hash_entry **rel_hash;
- long r_symndx;
-
- /* Read in the relocs. */
- target_index = o->output_section->target_index;
- internal_relocs = (xcoff_read_internal_relocs
- (input_bfd, o, false, finfo->external_relocs,
- true,
- (finfo->section_info[target_index].relocs
- + o->output_section->reloc_count)));
- if (internal_relocs == NULL)
- return false;
-
- /* Call processor specific code to relocate the section
- contents. */
- if (! bfd_coff_relocate_section (output_bfd, finfo->info,
- input_bfd, o,
- contents,
- internal_relocs,
- finfo->internal_syms,
- xcoff_data (input_bfd)->csects))
- return false;
-
- offset = o->output_section->vma + o->output_offset - o->vma;
- irel = internal_relocs;
- irelend = irel + o->reloc_count;
- rel_hash = (finfo->section_info[target_index].rel_hashes
- + o->output_section->reloc_count);
- for (; irel < irelend; irel++, rel_hash++) {
- struct xcoff_link_hash_entry *h = NULL;
- struct internal_ldrel ldrel;
- boolean quiet;
+ pos = obj_sym_filepos (output_bfd);
+ pos += obj_raw_syment_count (output_bfd) * bfd_coff_symesz (output_bfd);
+ amt = outsym - finfo->outsyms;
+ if (bfd_seek (output_bfd, pos, SEEK_SET) != 0
+ || bfd_bwrite (finfo->outsyms, amt, output_bfd) != amt)
+ return FALSE;
+ obj_raw_syment_count (output_bfd) +=
+ (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd);
- *rel_hash = NULL;
+ return TRUE;
+}
- /* Adjust the reloc address and symbol index. */
+/* Handle a link order which is supposed to generate a reloc. */
- irel->r_vaddr += offset;
+static bfd_boolean
+xcoff_reloc_link_order (bfd *output_bfd,
+ struct xcoff_final_link_info *finfo,
+ asection *output_section,
+ struct bfd_link_order *link_order)
+{
+ reloc_howto_type *howto;
+ struct xcoff_link_hash_entry *h;
+ asection *hsec;
+ bfd_vma hval;
+ bfd_vma addend;
+ struct internal_reloc *irel;
+ struct xcoff_link_hash_entry **rel_hash_ptr;
+ struct internal_ldrel ldrel;
- r_symndx = irel->r_symndx;
+ if (link_order->type == bfd_section_reloc_link_order)
+ /* We need to somehow locate a symbol in the right section. The
+ symbol must either have a value of zero, or we must adjust
+ the addend by the value of the symbol. FIXME: Write this
+ when we need it. The old linker couldn't handle this anyhow. */
+ abort ();
- if (r_symndx == -1)
- h = NULL;
- else
- h = obj_xcoff_sym_hashes (input_bfd)[r_symndx];
+ howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc);
+ if (howto == NULL)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
- if (r_symndx != -1 && finfo->info->strip != strip_all)
- {
- if (h != NULL
- && h->smclas != XMC_TD
- && (irel->r_type == R_TOC
- || irel->r_type == R_GL
- || irel->r_type == R_TCL
- || irel->r_type == R_TRL
- || irel->r_type == R_TRLA))
- {
- /* This is a TOC relative reloc with a symbol
- attached. The symbol should be the one which
- this reloc is for. We want to make this
- reloc against the TOC address of the symbol,
- not the symbol itself. */
- BFD_ASSERT (h->toc_section != NULL);
- BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0);
- if (h->u.toc_indx != -1)
- irel->r_symndx = h->u.toc_indx;
- else
- {
- struct xcoff_toc_rel_hash *n;
- struct xcoff_link_section_info *si;
-
- n = ((struct xcoff_toc_rel_hash *)
- bfd_alloc (finfo->output_bfd,
- sizeof (struct xcoff_toc_rel_hash)));
- if (n == NULL)
- return false;
- si = finfo->section_info + target_index;
- n->next = si->toc_rel_hashes;
- n->h = h;
- n->rel = irel;
- si->toc_rel_hashes = n;
- }
- }
- else if (h != NULL)
- {
- /* This is a global symbol. */
- if (h->indx >= 0)
- irel->r_symndx = h->indx;
- else
- {
- /* This symbol is being written at the end
- of the file, and we do not yet know the
- symbol index. We save the pointer to the
- hash table entry in the rel_hash list.
- We set the indx field to -2 to indicate
- that this symbol must not be stripped. */
- *rel_hash = h;
- h->indx = -2;
- }
- }
- else
- {
- long indx;
+ h = ((struct xcoff_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (output_bfd, finfo->info,
+ link_order->u.reloc.p->u.name,
+ FALSE, FALSE, TRUE));
+ if (h == NULL)
+ {
+ if (! ((*finfo->info->callbacks->unattached_reloc)
+ (finfo->info, link_order->u.reloc.p->u.name, NULL, NULL, (bfd_vma) 0)))
+ return FALSE;
+ return TRUE;
+ }
- indx = finfo->sym_indices[r_symndx];
+ if (h->root.type == bfd_link_hash_common)
+ {
+ hsec = h->root.u.c.p->section;
+ hval = 0;
+ }
+ else if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ hsec = h->root.u.def.section;
+ hval = h->root.u.def.value;
+ }
+ else
+ {
+ hsec = NULL;
+ hval = 0;
+ }
- if (indx == -1)
- {
- struct internal_syment *is;
-
- /* Relocations against a TC0 TOC anchor are
- automatically transformed to be against
- the TOC anchor in the output file. */
- is = finfo->internal_syms + r_symndx;
- if (is->n_sclass == C_HIDEXT
- && is->n_numaux > 0)
- {
- PTR auxptr;
- union internal_auxent aux;
-
- auxptr = ((PTR)
- (((bfd_byte *)
- obj_coff_external_syms (input_bfd))
- + ((r_symndx + is->n_numaux)
- * isymesz)));
- bfd_coff_swap_aux_in (input_bfd, auxptr,
- is->n_type, is->n_sclass,
- is->n_numaux - 1,
- is->n_numaux,
- (PTR) &aux);
- if (SMTYP_SMTYP (aux.x_csect.x_smtyp) == XTY_SD
- && aux.x_csect.x_smclas == XMC_TC0)
- indx = finfo->toc_symindx;
- }
- }
+ addend = link_order->u.reloc.p->addend;
+ if (hsec != NULL)
+ addend += (hsec->output_section->vma
+ + hsec->output_offset
+ + hval);
- if (indx != -1)
- irel->r_symndx = indx;
- else
- {
+ if (addend != 0)
+ {
+ bfd_size_type size;
+ bfd_byte *buf;
+ bfd_reloc_status_type rstat;
+ bfd_boolean ok;
- struct internal_syment *is;
+ size = bfd_get_reloc_size (howto);
+ buf = bfd_zmalloc (size);
+ if (buf == NULL)
+ return FALSE;
- const char *name;
- char buf[SYMNMLEN + 1];
+ rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf);
+ switch (rstat)
+ {
+ case bfd_reloc_ok:
+ break;
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ if (! ((*finfo->info->callbacks->reloc_overflow)
+ (finfo->info, NULL, link_order->u.reloc.p->u.name,
+ howto->name, addend, NULL, NULL, (bfd_vma) 0)))
+ {
+ free (buf);
+ return FALSE;
+ }
+ break;
+ }
+ ok = bfd_set_section_contents (output_bfd, output_section, (void *) buf,
+ (file_ptr) link_order->offset, size);
+ free (buf);
+ if (! ok)
+ return FALSE;
+ }
- /* This reloc is against a symbol we are
- stripping. It would be possible to handle
- this case, but I don't think it's worth it. */
- is = finfo->internal_syms + r_symndx;
+ /* Store the reloc information in the right place. It will get
+ swapped and written out at the end of the final_link routine. */
+ irel = (finfo->section_info[output_section->target_index].relocs
+ + output_section->reloc_count);
+ rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes
+ + output_section->reloc_count);
- name = (_bfd_coff_internal_syment_name
- (input_bfd, is, buf));
+ memset (irel, 0, sizeof (struct internal_reloc));
+ *rel_hash_ptr = NULL;
- if (name == NULL)
- return false;
+ irel->r_vaddr = output_section->vma + link_order->offset;
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, name, input_bfd, o,
- irel->r_vaddr)))
- return false;
- }
- }
- }
+ if (h->indx >= 0)
+ irel->r_symndx = h->indx;
+ else
+ {
+ /* Set the index to -2 to force this symbol to get written out. */
+ h->indx = -2;
+ *rel_hash_ptr = h;
+ irel->r_symndx = 0;
+ }
- quiet = false;
- switch (irel->r_type)
- {
- default:
- if (h == NULL
- || h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak
- || h->root.type == bfd_link_hash_common)
- break;
- /* Fall through. */
- case R_POS:
- case R_NEG:
- case R_RL:
- case R_RLA:
- /* This reloc needs to be copied into the .loader
- section. */
- ldrel.l_vaddr = irel->r_vaddr;
- if (r_symndx == -1)
- ldrel.l_symndx = -1;
- else if (h == NULL
- || (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak
- || h->root.type == bfd_link_hash_common))
- {
- asection *sec;
-
- if (h == NULL)
- sec = xcoff_data (input_bfd)->csects[r_symndx];
- else if (h->root.type == bfd_link_hash_common)
- sec = h->root.u.c.p->section;
- else
- sec = h->root.u.def.section;
- sec = sec->output_section;
-
- if (strcmp (sec->name, ".text") == 0)
- ldrel.l_symndx = 0;
- else if (strcmp (sec->name, ".data") == 0)
- ldrel.l_symndx = 1;
- else if (strcmp (sec->name, ".bss") == 0)
- ldrel.l_symndx = 2;
- else
- {
- (*_bfd_error_handler)
- (_("%s: loader reloc in unrecognized section `%s'"),
- bfd_get_filename (input_bfd),
- sec->name);
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
- }
- }
- else
- {
- if (! finfo->info->relocateable
- && (h->flags & XCOFF_DEF_DYNAMIC) == 0
- && (h->flags & XCOFF_IMPORT) == 0)
- {
- /* We already called the undefined_symbol
- callback for this relocation, in
- _bfd_ppc_xcoff_relocate_section. Don't
- issue any more warnings. */
- quiet = true;
- }
- if (h->ldindx < 0 && ! quiet)
- {
- (*_bfd_error_handler)
- (_("%s: `%s' in loader reloc but not loader sym"),
- bfd_get_filename (input_bfd),
- h->root.root.string);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- ldrel.l_symndx = h->ldindx;
- }
- ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
- ldrel.l_rsecnm = o->output_section->target_index;
- if (xcoff_hash_table (finfo->info)->textro
- && strcmp (o->output_section->name, ".text") == 0
- && ! quiet)
- {
- (*_bfd_error_handler)
- (_("%s: loader reloc in read-only section %s"),
- bfd_get_filename (input_bfd),
- bfd_get_section_name (finfo->output_bfd,
- o->output_section));
- bfd_set_error (bfd_error_invalid_operation);
- return false;
- }
- bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel,
- finfo->ldrel);
+ irel->r_type = howto->type;
+ irel->r_size = howto->bitsize - 1;
+ if (howto->complain_on_overflow == complain_overflow_signed)
+ irel->r_size |= 0x80;
- finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
- break;
+ ++output_section->reloc_count;
- case R_TOC:
- case R_GL:
- case R_TCL:
- case R_TRL:
- case R_TRLA:
- /* We should never need a .loader reloc for a TOC
- relative reloc. */
- break;
- }
- }
+ /* Now output the reloc to the .loader section. */
- o->output_section->reloc_count += o->reloc_count;
- }
+ ldrel.l_vaddr = irel->r_vaddr;
- /* Write out the modified section contents. */
- if (! bfd_set_section_contents (output_bfd, o->output_section,
- contents, o->output_offset,
- (o->_cooked_size != 0
- ? o->_cooked_size
- : o->_raw_size)))
- return false;
- }
+ if (hsec != NULL)
+ {
+ const char *secname;
- obj_coff_keep_syms (input_bfd) = keep_syms;
+ secname = hsec->output_section->name;
- if (! finfo->info->keep_memory)
+ if (strcmp (secname, ".text") == 0)
+ ldrel.l_symndx = 0;
+ else if (strcmp (secname, ".data") == 0)
+ ldrel.l_symndx = 1;
+ else if (strcmp (secname, ".bss") == 0)
+ ldrel.l_symndx = 2;
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s: loader reloc in unrecognized section `%s'"),
+ bfd_get_filename (output_bfd), secname);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
+ }
+ else
{
- if (! _bfd_coff_free_symbols (input_bfd))
- return false;
+ if (h->ldindx < 0)
+ {
+ (*_bfd_error_handler)
+ (_("%s: `%s' in loader reloc but not loader sym"),
+ bfd_get_filename (output_bfd),
+ h->root.root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ ldrel.l_symndx = h->ldindx;
}
- return true;
+ ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
+ ldrel.l_rsecnm = output_section->target_index;
+ bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
+ finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+
+ return TRUE;
}
-#undef N_TMASK
-#undef N_BTSHFT
+/* Do the final link step. */
-/* Write out a non-XCOFF global symbol. */
+bfd_boolean
+_bfd_xcoff_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
+{
+ bfd_size_type symesz;
+ struct xcoff_final_link_info finfo;
+ asection *o;
+ struct bfd_link_order *p;
+ bfd_size_type max_contents_size;
+ bfd_size_type max_sym_count;
+ bfd_size_type max_lineno_count;
+ bfd_size_type max_reloc_count;
+ bfd_size_type max_output_reloc_count;
+ file_ptr rel_filepos;
+ unsigned int relsz;
+ file_ptr line_filepos;
+ unsigned int linesz;
+ bfd *sub;
+ bfd_byte *external_relocs = NULL;
+ char strbuf[STRING_SIZE_SIZE];
+ file_ptr pos;
+ bfd_size_type amt;
+ if (info->shared)
+ abfd->flags |= DYNAMIC;
-static boolean
-xcoff_write_global_symbol (h, p)
- struct xcoff_link_hash_entry *h;
- PTR p;
-{
- struct xcoff_final_link_info *finfo = (struct xcoff_final_link_info *) p;
- bfd *output_bfd;
- bfd_byte *outsym;
- struct internal_syment isym;
- union internal_auxent aux;
- boolean result;
+ symesz = bfd_coff_symesz (abfd);
- output_bfd = finfo->output_bfd;
- outsym = finfo->outsyms;
+ finfo.info = info;
+ finfo.output_bfd = abfd;
+ finfo.strtab = NULL;
+ finfo.section_info = NULL;
+ finfo.last_file_index = -1;
+ finfo.toc_symindx = -1;
+ finfo.internal_syms = NULL;
+ finfo.sym_indices = NULL;
+ finfo.outsyms = NULL;
+ finfo.linenos = NULL;
+ finfo.contents = NULL;
+ finfo.external_relocs = NULL;
- /* If this symbol was garbage collected, just skip it. */
- if (xcoff_hash_table (finfo->info)->gc
- && (h->flags & XCOFF_MARK) == 0)
- return true;
+ finfo.ldsym = (xcoff_hash_table (info)->loader_section->contents
+ + bfd_xcoff_ldhdrsz (abfd));
+ finfo.ldrel = (xcoff_hash_table (info)->loader_section->contents
+ + bfd_xcoff_ldhdrsz(abfd)
+ + (xcoff_hash_table (info)->ldhdr.l_nsyms
+ * bfd_xcoff_ldsymsz(abfd)));
- /* If we need a .loader section entry, write it out. */
- if (h->ldsym != NULL) {
- struct internal_ldsym *ldsym;
- bfd *impbfd;
-
- ldsym = h->ldsym;
+ xcoff_data (abfd)->coff.link_info = info;
- if (h->root.type == bfd_link_hash_undefined ||
- h->root.type == bfd_link_hash_undefweak) {
+ finfo.strtab = _bfd_stringtab_init ();
+ if (finfo.strtab == NULL)
+ goto error_return;
- ldsym->l_value = 0;
- ldsym->l_scnum = N_UNDEF;
- ldsym->l_smtype = XTY_ER;
- impbfd = h->root.u.undef.abfd;
+ /* Count the line number and relocation entries required for the
+ output file. Determine a few maximum sizes. */
+ max_contents_size = 0;
+ max_lineno_count = 0;
+ max_reloc_count = 0;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ o->reloc_count = 0;
+ o->lineno_count = 0;
+ for (p = o->map_head.link_order; p != NULL; p = p->next)
+ {
+ if (p->type == bfd_indirect_link_order)
+ {
+ asection *sec;
- } else if (h->root.type == bfd_link_hash_defined ||
- h->root.type == bfd_link_hash_defweak) {
+ sec = p->u.indirect.section;
- asection *sec;
-
- sec = h->root.u.def.section;
- ldsym->l_value = (sec->output_section->vma
- + sec->output_offset
- + h->root.u.def.value);
- ldsym->l_scnum = sec->output_section->target_index;
- ldsym->l_smtype = XTY_SD;
- impbfd = sec->owner;
-
- } else {
- abort ();
- }
+ /* Mark all sections which are to be included in the
+ link. This will normally be every section. We need
+ to do this so that we can identify any sections which
+ the linker has decided to not include. */
+ sec->linker_mark = TRUE;
- if (((h->flags & XCOFF_DEF_REGULAR) == 0 &&
- (h->flags & XCOFF_DEF_DYNAMIC) != 0) ||
- (h->flags & XCOFF_IMPORT) != 0) {
- ldsym->l_smtype |= L_IMPORT;
- }
+ if (info->strip == strip_none
+ || info->strip == strip_some)
+ o->lineno_count += sec->lineno_count;
- if (((h->flags & XCOFF_DEF_REGULAR) != 0 &&
- (h->flags & XCOFF_DEF_DYNAMIC) != 0) ||
- (h->flags & XCOFF_EXPORT) != 0) {
- ldsym->l_smtype |= L_EXPORT;
- }
+ o->reloc_count += sec->reloc_count;
- if ((h->flags & XCOFF_ENTRY) != 0) {
- ldsym->l_smtype |= L_ENTRY;
+ if (sec->rawsize > max_contents_size)
+ max_contents_size = sec->rawsize;
+ if (sec->size > max_contents_size)
+ max_contents_size = sec->size;
+ if (sec->lineno_count > max_lineno_count)
+ max_lineno_count = sec->lineno_count;
+ if (coff_section_data (sec->owner, sec) != NULL
+ && xcoff_section_data (sec->owner, sec) != NULL
+ && (xcoff_section_data (sec->owner, sec)->lineno_count
+ > max_lineno_count))
+ max_lineno_count =
+ xcoff_section_data (sec->owner, sec)->lineno_count;
+ if (sec->reloc_count > max_reloc_count)
+ max_reloc_count = sec->reloc_count;
+ }
+ else if (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order)
+ ++o->reloc_count;
+ }
}
- if ((h->flags & XCOFF_RTINIT) != 0) {
- ldsym->l_smtype = XTY_SD;
+ /* Compute the file positions for all the sections. */
+ if (abfd->output_has_begun)
+ {
+ if (xcoff_hash_table (info)->file_align != 0)
+ abort ();
}
+ else
+ {
+ bfd_vma file_align;
- ldsym->l_smclas = h->smclas;
-
- if (ldsym->l_ifile == (bfd_size_type) -1) {
- ldsym->l_ifile = 0;
+ file_align = xcoff_hash_table (info)->file_align;
+ if (file_align != 0)
+ {
+ bfd_boolean saw_contents;
+ int indx;
+ file_ptr sofar;
- } else if (ldsym->l_ifile == 0) {
- if ((ldsym->l_smtype & L_IMPORT) == 0) {
- ldsym->l_ifile = 0;
- } else if (impbfd == NULL) {
- ldsym->l_ifile = 0;
- } else {
- BFD_ASSERT (impbfd->xvec == output_bfd->xvec);
- ldsym->l_ifile = xcoff_data (impbfd)->import_file_id;
- }
- }
-
- ldsym->l_parm = 0;
-
- BFD_ASSERT (h->ldindx >= 0);
-
- bfd_xcoff_swap_ldsym_out (output_bfd, ldsym, finfo->ldsym +
- (h->ldindx - 3) *
- bfd_xcoff_ldsymsz(finfo->output_bfd));
- h->ldsym = NULL;
- }
-
- /* If this symbol needs global linkage code, write it out. */
- if (h->root.type == bfd_link_hash_defined &&
- (h->root.u.def.section ==
- xcoff_hash_table (finfo->info)->linkage_section)) {
+ /* Insert .pad sections before every section which has
+ contents and is loaded, if it is preceded by some other
+ section which has contents and is loaded. */
+ saw_contents = TRUE;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ if (strcmp (o->name, ".pad") == 0)
+ saw_contents = FALSE;
+ else if ((o->flags & SEC_HAS_CONTENTS) != 0
+ && (o->flags & SEC_LOAD) != 0)
+ {
+ if (! saw_contents)
+ saw_contents = TRUE;
+ else
+ {
+ asection *n;
- bfd_byte *p;
- bfd_vma tocoff;
- unsigned int i;
-
- p = h->root.u.def.section->contents + h->root.u.def.value;
+ /* Create a pad section and place it before the section
+ that needs padding. This requires unlinking and
+ relinking the bfd's section list. */
- /* The first instruction in the global linkage code loads a
- specific TOC element. */
- tocoff = (h->descriptor->toc_section->output_section->vma
- + h->descriptor->toc_section->output_offset
- - xcoff_data (output_bfd)->toc);
+ n = bfd_make_section_anyway (abfd, ".pad");
+ n->flags = SEC_HAS_CONTENTS;
+ n->alignment_power = 0;
- if ((h->descriptor->flags & XCOFF_SET_TOC) != 0) {
- tocoff += h->descriptor->u.toc_offset;
- }
-
-
- /*
- * The first instruction in the glink code needs to be cooked to
- * to hold the correct offset in the toc. The rest are just outputted
- * raw.
- */
- bfd_put_32 (output_bfd,
- bfd_xcoff_glink_code(output_bfd, 0) | (tocoff & 0xffff), p);
-
- /*
- * Start with i == 1 to get past the first instruction done above
- * The /4 is because the glink code is in bytes and we are going 4
- * at a pop
- */
- for (i = 1; i < bfd_xcoff_glink_code_size(output_bfd) / 4; i++) {
- bfd_put_32 (output_bfd, bfd_xcoff_glink_code(output_bfd, i),
- &p[4 * i]);
- }
- }
+ bfd_section_list_remove (abfd, n);
+ bfd_section_list_insert_before (abfd, o, n);
+ saw_contents = FALSE;
+ }
+ }
+ }
- /* If we created a TOC entry for this symbol, write out the required
- relocs. */
- if ((h->flags & XCOFF_SET_TOC) != 0)
- {
- asection *tocsec;
- asection *osec;
- int oindx;
- struct internal_reloc *irel;
- struct internal_ldrel ldrel;
- struct internal_syment irsym;
- union internal_auxent iraux;
+ /* Reset the section indices after inserting the new
+ sections. */
+ indx = 0;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ ++indx;
+ o->target_index = indx;
+ }
+ BFD_ASSERT ((unsigned int) indx == abfd->section_count);
- tocsec = h->toc_section;
- osec = tocsec->output_section;
- oindx = osec->target_index;
- irel = finfo->section_info[oindx].relocs + osec->reloc_count;
- irel->r_vaddr = (osec->vma
- + tocsec->output_offset
- + h->u.toc_offset);
+ /* Work out appropriate sizes for the .pad sections to force
+ each section to land on a page boundary. This bit of
+ code knows what compute_section_file_positions is going
+ to do. */
+ sofar = bfd_coff_filhsz (abfd);
+ sofar += bfd_coff_aoutsz (abfd);
+ sofar += abfd->section_count * bfd_coff_scnhsz (abfd);
+ for (o = abfd->sections; o != NULL; o = o->next)
+ if ((bfd_xcoff_is_reloc_count_overflow
+ (abfd, (bfd_vma) o->reloc_count))
+ || (bfd_xcoff_is_lineno_count_overflow
+ (abfd, (bfd_vma) o->lineno_count)))
+ /* 64 does not overflow, need to check if 32 does */
+ sofar += bfd_coff_scnhsz (abfd);
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ if (strcmp (o->name, ".pad") == 0)
+ {
+ bfd_vma pageoff;
- if (h->indx >= 0) {
- irel->r_symndx = h->indx;
- } else {
- h->indx = -2;
- irel->r_symndx = obj_raw_syment_count (output_bfd);
- }
-
- BFD_ASSERT (h->ldindx >= 0);
+ BFD_ASSERT (o->size == 0);
+ pageoff = sofar & (file_align - 1);
+ if (pageoff != 0)
+ {
+ o->size = file_align - pageoff;
+ sofar += file_align - pageoff;
+ o->flags |= SEC_HAS_CONTENTS;
+ }
+ }
+ else
+ {
+ if ((o->flags & SEC_HAS_CONTENTS) != 0)
+ sofar += BFD_ALIGN (o->size,
+ 1 << o->alignment_power);
+ }
+ }
+ }
- /*
- * Initialize the aux union here instead of closer to when it is
- * written out below because the length of the csect depends on
- * whether the output is 32 or 64 bit
- */
- memset (&iraux, 0, sizeof iraux);
- iraux.x_csect.x_smtyp = XTY_SD;
- /* iraux.x_csect.x_scnlen.l = 4 or 8, see below */
- iraux.x_csect.x_smclas = XMC_TC;
+ if (! bfd_coff_compute_section_file_positions (abfd))
+ goto error_return;
+ }
+ /* Allocate space for the pointers we need to keep for the relocs. */
+ {
+ unsigned int i;
- /*
- * 32 bit uses a 32 bit R_POS to do the relocations
- * 64 bit uses a 64 bit R_POS to do the relocations
- *
- * Also needs to change the csect size : 4 for 32 bit, 8 for 64 bit
- *
- * Which one is determined by the backend
- */
- if (bfd_xcoff_is_xcoff64(output_bfd)) {
- irel->r_size = 63;
- iraux.x_csect.x_scnlen.l = 8;
- } else if (bfd_xcoff_is_xcoff32(output_bfd)) {
- irel->r_size = 31;
- iraux.x_csect.x_scnlen.l = 4;
- } else {
- return false;
+ /* We use section_count + 1, rather than section_count, because
+ the target_index fields are 1 based. */
+ amt = abfd->section_count + 1;
+ amt *= sizeof (struct xcoff_link_section_info);
+ finfo.section_info = bfd_malloc (amt);
+ if (finfo.section_info == NULL)
+ goto error_return;
+ for (i = 0; i <= abfd->section_count; i++)
+ {
+ finfo.section_info[i].relocs = NULL;
+ finfo.section_info[i].rel_hashes = NULL;
+ finfo.section_info[i].toc_rel_hashes = NULL;
}
- irel->r_type = R_POS;
- finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
- ++osec->reloc_count;
-
- ldrel.l_vaddr = irel->r_vaddr;
- ldrel.l_symndx = h->ldindx;
- ldrel.l_rtype = (irel->r_size << 8) | R_POS;
- ldrel.l_rsecnm = oindx;
- bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
-
- /* We need to emit a symbol to define a csect which holds the reloc. */
- if (finfo->info->strip != strip_all) {
+ }
- result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &irsym,
- h->root.root.string);
- if (false == result) {
- return false;
- }
+ /* Set the file positions for the relocs. */
+ rel_filepos = obj_relocbase (abfd);
+ relsz = bfd_coff_relsz (abfd);
+ max_output_reloc_count = 0;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ if (o->reloc_count == 0)
+ o->rel_filepos = 0;
+ else
+ {
+ /* A stripped file has no relocs. However, we still
+ allocate the buffers, so that later code doesn't have to
+ worry about whether we are stripping or not. */
+ if (info->strip == strip_all)
+ o->rel_filepos = 0;
+ else
+ {
+ o->flags |= SEC_RELOC;
+ o->rel_filepos = rel_filepos;
+ rel_filepos += o->reloc_count * relsz;
+ }
- irsym.n_value = irel->r_vaddr;
- irsym.n_scnum = osec->target_index;
- irsym.n_sclass = C_HIDEXT;
- irsym.n_type = T_NULL;
- irsym.n_numaux = 1;
+ /* We don't know the indices of global symbols until we have
+ written out all the local symbols. For each section in
+ the output file, we keep an array of pointers to hash
+ table entries. Each entry in the array corresponds to a
+ reloc. When we find a reloc against a global symbol, we
+ set the corresponding entry in this array so that we can
+ fix up the symbol index after we have written out all the
+ local symbols.
- bfd_coff_swap_sym_out (output_bfd, (PTR) &irsym, (PTR) outsym);
- outsym += bfd_coff_symesz (output_bfd);
+ Because of this problem, we also keep the relocs in
+ memory until the end of the link. This wastes memory.
+ We could backpatch the file later, I suppose, although it
+ would be slow. */
+ amt = o->reloc_count;
+ amt *= sizeof (struct internal_reloc);
+ finfo.section_info[o->target_index].relocs = bfd_malloc (amt);
- /* note : iraux is initialized above */
- bfd_coff_swap_aux_out (output_bfd, (PTR) &iraux, T_NULL, C_HIDEXT,
- 0, 1, (PTR) outsym);
- outsym += bfd_coff_auxesz (output_bfd);
+ amt = o->reloc_count;
+ amt *= sizeof (struct xcoff_link_hash_entry *);
+ finfo.section_info[o->target_index].rel_hashes = bfd_malloc (amt);
- if (h->indx >= 0)
- {
- /* We aren't going to write out the symbols below, so we
- need to write them out now. */
- if (bfd_seek (output_bfd,
- (obj_sym_filepos (output_bfd)
- + (obj_raw_syment_count (output_bfd)
- * bfd_coff_symesz (output_bfd))),
- SEEK_SET) != 0
- || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1,
- output_bfd)
- != (bfd_size_type) (outsym - finfo->outsyms)))
- return false;
- obj_raw_syment_count (output_bfd) +=
- (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd);
+ if (finfo.section_info[o->target_index].relocs == NULL
+ || finfo.section_info[o->target_index].rel_hashes == NULL)
+ goto error_return;
- outsym = finfo->outsyms;
- }
+ if (o->reloc_count > max_output_reloc_count)
+ max_output_reloc_count = o->reloc_count;
}
}
- /*
- * If this symbol is a specially defined function descriptor, write
- * it out. The first word is the address of the function code
- * itself, the second word is the address of the TOC, and the third
- * word is zero.
- *
- * 32 bit vs 64 bit
- * The addresses for the 32 bit will take 4 bytes and the addresses
- * for 64 bit will take 8 bytes. Similar for the relocs. This type
- * of logic was also done above to create a TOC entry in
- * xcoff_write_global_symbol
- */
- if ((h->flags & XCOFF_DESCRIPTOR) != 0
- && h->root.type == bfd_link_hash_defined
- && (h->root.u.def.section
- == xcoff_hash_table (finfo->info)->descriptor_section))
+ /* We now know the size of the relocs, so we can determine the file
+ positions of the line numbers. */
+ line_filepos = rel_filepos;
+ finfo.line_filepos = line_filepos;
+ linesz = bfd_coff_linesz (abfd);
+ for (o = abfd->sections; o != NULL; o = o->next)
{
- asection *sec;
- asection *osec;
- int oindx;
- bfd_byte *p;
- struct xcoff_link_hash_entry *hentry;
- asection *esec;
- struct internal_reloc *irel;
- struct internal_ldrel ldrel;
- asection *tsec;
- unsigned int reloc_size, byte_size;
-
- if (bfd_xcoff_is_xcoff64(output_bfd)) {
- reloc_size = 63;
- byte_size = 8;
- } else if (bfd_xcoff_is_xcoff32(output_bfd)) {
- reloc_size = 31;
- byte_size = 4;
- } else {
- return false;
- }
-
- sec = h->root.u.def.section;
- osec = sec->output_section;
- oindx = osec->target_index;
- p = sec->contents + h->root.u.def.value;
-
- hentry = h->descriptor;
- BFD_ASSERT (hentry != NULL
- && (hentry->root.type == bfd_link_hash_defined
- || hentry->root.type == bfd_link_hash_defweak));
- esec = hentry->root.u.def.section;
-
- irel = finfo->section_info[oindx].relocs + osec->reloc_count;
- irel->r_vaddr = (osec->vma
- + sec->output_offset
- + h->root.u.def.value);
- irel->r_symndx = esec->output_section->target_index;
- irel->r_type = R_POS;
- irel->r_size = reloc_size;
- finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
- ++osec->reloc_count;
-
- ldrel.l_vaddr = irel->r_vaddr;
- if (strcmp (esec->output_section->name, ".text") == 0)
- ldrel.l_symndx = 0;
- else if (strcmp (esec->output_section->name, ".data") == 0)
- ldrel.l_symndx = 1;
- else if (strcmp (esec->output_section->name, ".bss") == 0)
- ldrel.l_symndx = 2;
+ if (o->lineno_count == 0)
+ o->line_filepos = 0;
else
{
- (*_bfd_error_handler)
- (_("%s: loader reloc in unrecognized section `%s'"),
- bfd_get_filename (output_bfd),
- esec->output_section->name);
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
+ o->line_filepos = line_filepos;
+ line_filepos += o->lineno_count * linesz;
}
- ldrel.l_rtype = (reloc_size << 8) | R_POS;
- ldrel.l_rsecnm = oindx;
- bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
-
- /*
- * There are three items to write out,
- * the address of the code
- * the address of the toc anchor
- * the environment pointer.
- * We are ignoring the environment pointer. So set it to zero
- */
- if (bfd_xcoff_is_xcoff64(output_bfd)) {
- bfd_put_64 (output_bfd, (esec->output_section->vma +
- esec->output_offset +
- hentry->root.u.def.value), p);
- bfd_put_64 (output_bfd, xcoff_data (output_bfd)->toc, p + 8);
- bfd_put_64 (output_bfd, 0, p + 16);
- } else {
- /*
- * 32 bit backend
- *
- * This logic was already called above so the error case where
- * the backend is neither has already been checked
- */
- bfd_put_32 (output_bfd, (esec->output_section->vma +
- esec->output_offset +
- hentry->root.u.def.value), p);
- bfd_put_32 (output_bfd, xcoff_data (output_bfd)->toc, p + 4);
- bfd_put_32 (output_bfd, 0, p + 8);
- }
-
- tsec = coff_section_from_bfd_index (output_bfd,
- xcoff_data (output_bfd)->sntoc);
-
- ++irel;
- irel->r_vaddr = (osec->vma
- + sec->output_offset
- + h->root.u.def.value
- + byte_size);
- irel->r_symndx = tsec->output_section->target_index;
- irel->r_type = R_POS;
- irel->r_size = reloc_size;
- finfo->section_info[oindx].rel_hashes[osec->reloc_count] = NULL;
- ++osec->reloc_count;
- ldrel.l_vaddr = irel->r_vaddr;
- if (strcmp (tsec->output_section->name, ".text") == 0)
- ldrel.l_symndx = 0;
- else if (strcmp (tsec->output_section->name, ".data") == 0)
- ldrel.l_symndx = 1;
- else if (strcmp (tsec->output_section->name, ".bss") == 0)
- ldrel.l_symndx = 2;
- else
- {
- (*_bfd_error_handler)
- (_("%s: loader reloc in unrecognized section `%s'"),
- bfd_get_filename (output_bfd),
- tsec->output_section->name);
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
- }
- ldrel.l_rtype = (reloc_size << 8) | R_POS;
- ldrel.l_rsecnm = oindx;
- bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+ /* Reset the reloc and lineno counts, so that we can use them to
+ count the number of entries we have output so far. */
+ o->reloc_count = 0;
+ o->lineno_count = 0;
}
- if (h->indx >= 0 || finfo->info->strip == strip_all)
- {
- BFD_ASSERT (outsym == finfo->outsyms);
- return true;
- }
+ obj_sym_filepos (abfd) = line_filepos;
- if (h->indx != -2
- && (finfo->info->strip == strip_all
- || (finfo->info->strip == strip_some
- && (bfd_hash_lookup (finfo->info->keep_hash,
- h->root.root.string, false, false)
- == NULL))))
+ /* Figure out the largest number of symbols in an input BFD. Take
+ the opportunity to clear the output_has_begun fields of all the
+ input BFD's. We want at least 6 symbols, since that is the
+ number which xcoff_write_global_symbol may need. */
+ max_sym_count = 6;
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
{
- BFD_ASSERT (outsym == finfo->outsyms);
- return true;
- }
+ bfd_size_type sz;
- if (h->indx != -2
- && (h->flags & (XCOFF_REF_REGULAR | XCOFF_DEF_REGULAR)) == 0)
- {
- BFD_ASSERT (outsym == finfo->outsyms);
- return true;
+ sub->output_has_begun = FALSE;
+ sz = obj_raw_syment_count (sub);
+ if (sz > max_sym_count)
+ max_sym_count = sz;
}
- memset (&aux, 0, sizeof aux);
+ /* Allocate some buffers used while linking. */
+ amt = max_sym_count * sizeof (struct internal_syment);
+ finfo.internal_syms = bfd_malloc (amt);
- h->indx = obj_raw_syment_count (output_bfd);
+ amt = max_sym_count * sizeof (long);
+ finfo.sym_indices = bfd_malloc (amt);
- result = bfd_xcoff_put_symbol_name (output_bfd, finfo->strtab, &isym,
- h->root.root.string);
- if (false == result) {
- return false;
- }
+ amt = (max_sym_count + 1) * symesz;
+ finfo.outsyms = bfd_malloc (amt);
- if (h->root.type == bfd_link_hash_undefined
- || h->root.type == bfd_link_hash_undefweak)
- {
- isym.n_value = 0;
- isym.n_scnum = N_UNDEF;
- isym.n_sclass = C_EXT;
- aux.x_csect.x_smtyp = XTY_ER;
- }
- else if ((h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && h->smclas == XMC_XO)
- {
- BFD_ASSERT (bfd_is_abs_section (h->root.u.def.section));
- isym.n_value = h->root.u.def.value;
- isym.n_scnum = N_UNDEF;
- isym.n_sclass = C_EXT;
- aux.x_csect.x_smtyp = XTY_ER;
- }
- else if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- struct xcoff_link_size_list *l;
+ amt = max_lineno_count * bfd_coff_linesz (abfd);
+ finfo.linenos = bfd_malloc (amt);
- isym.n_value = (h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset
- + h->root.u.def.value);
- isym.n_scnum = h->root.u.def.section->output_section->target_index;
- isym.n_sclass = C_HIDEXT;
- aux.x_csect.x_smtyp = XTY_SD;
+ amt = max_contents_size;
+ finfo.contents = bfd_malloc (amt);
- if ((h->flags & XCOFF_HAS_SIZE) != 0)
+ amt = max_reloc_count * relsz;
+ finfo.external_relocs = bfd_malloc (amt);
+
+ if ((finfo.internal_syms == NULL && max_sym_count > 0)
+ || (finfo.sym_indices == NULL && max_sym_count > 0)
+ || finfo.outsyms == NULL
+ || (finfo.linenos == NULL && max_lineno_count > 0)
+ || (finfo.contents == NULL && max_contents_size > 0)
+ || (finfo.external_relocs == NULL && max_reloc_count > 0))
+ goto error_return;
+
+ obj_raw_syment_count (abfd) = 0;
+ xcoff_data (abfd)->toc = (bfd_vma) -1;
+
+ /* We now know the position of everything in the file, except that
+ we don't know the size of the symbol table and therefore we don't
+ know where the string table starts. We just build the string
+ table in memory as we go along. We process all the relocations
+ for a single input file at once. */
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ for (p = o->map_head.link_order; p != NULL; p = p->next)
{
- for (l = xcoff_hash_table (finfo->info)->size_list;
- l != NULL;
- l = l->next)
+ if (p->type == bfd_indirect_link_order
+ && p->u.indirect.section->owner->xvec == abfd->xvec)
{
- if (l->h == h)
+ sub = p->u.indirect.section->owner;
+ if (! sub->output_has_begun)
{
- aux.x_csect.x_scnlen.l = l->size;
- break;
+ if (! xcoff_link_input_bfd (&finfo, sub))
+ goto error_return;
+ sub->output_has_begun = TRUE;
}
}
+ else if (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order)
+ {
+ if (! xcoff_reloc_link_order (abfd, &finfo, o, p))
+ goto error_return;
+ }
+ else
+ {
+ if (! _bfd_default_link_order (abfd, info, o, p))
+ goto error_return;
+ }
}
- }
- else if (h->root.type == bfd_link_hash_common)
- {
- isym.n_value = (h->root.u.c.p->section->output_section->vma
- + h->root.u.c.p->section->output_offset);
- isym.n_scnum = h->root.u.c.p->section->output_section->target_index;
- isym.n_sclass = C_EXT;
- aux.x_csect.x_smtyp = XTY_CM;
- aux.x_csect.x_scnlen.l = h->root.u.c.size;
- }
- else
- abort ();
-
- isym.n_type = T_NULL;
- isym.n_numaux = 1;
-
- bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym);
- outsym += bfd_coff_symesz (output_bfd);
-
- aux.x_csect.x_smclas = h->smclas;
- bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, isym.n_sclass, 0, 1,
- (PTR) outsym);
- outsym += bfd_coff_auxesz (output_bfd);
+ }
- if ((h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && h->smclas != XMC_XO)
+ /* Free up the buffers used by xcoff_link_input_bfd. */
+ if (finfo.internal_syms != NULL)
{
- /* We just output an SD symbol. Now output an LD symbol. */
-
- h->indx += 2;
-
- isym.n_sclass = C_EXT;
- bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym);
- outsym += bfd_coff_symesz (output_bfd);
-
- aux.x_csect.x_smtyp = XTY_LD;
- aux.x_csect.x_scnlen.l = obj_raw_syment_count (output_bfd);
- bfd_coff_swap_aux_out (output_bfd, (PTR) &aux, T_NULL, C_EXT, 0, 1,
- (PTR) outsym);
- outsym += bfd_coff_auxesz (output_bfd);
+ free (finfo.internal_syms);
+ finfo.internal_syms = NULL;
}
-
- if (bfd_seek (output_bfd,
- (obj_sym_filepos (output_bfd)
- + (obj_raw_syment_count (output_bfd)
- * bfd_coff_symesz (output_bfd))),
- SEEK_SET) != 0
- || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, output_bfd)
- != (bfd_size_type) (outsym - finfo->outsyms)))
- return false;
- obj_raw_syment_count (output_bfd) +=
- (outsym - finfo->outsyms) / bfd_coff_symesz (output_bfd);
-
- return true;
-}
-
-/* Handle a link order which is supposed to generate a reloc. */
-
-static boolean
-xcoff_reloc_link_order (output_bfd, finfo, output_section, link_order)
- bfd *output_bfd;
- struct xcoff_final_link_info *finfo;
- asection *output_section;
- struct bfd_link_order *link_order;
-{
- reloc_howto_type *howto;
- struct xcoff_link_hash_entry *h;
- asection *hsec;
- bfd_vma hval;
- bfd_vma addend;
- struct internal_reloc *irel;
- struct xcoff_link_hash_entry **rel_hash_ptr;
- struct internal_ldrel ldrel;
-
- if (link_order->type == bfd_section_reloc_link_order)
+ if (finfo.sym_indices != NULL)
{
- /* We need to somehow locate a symbol in the right section. The
- symbol must either have a value of zero, or we must adjust
- the addend by the value of the symbol. FIXME: Write this
- when we need it. The old linker couldn't handle this anyhow. */
- abort ();
+ free (finfo.sym_indices);
+ finfo.sym_indices = NULL;
}
-
- howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc);
- if (howto == NULL)
+ if (finfo.linenos != NULL)
{
- bfd_set_error (bfd_error_bad_value);
- return false;
+ free (finfo.linenos);
+ finfo.linenos = NULL;
}
-
- h = ((struct xcoff_link_hash_entry *)
- bfd_wrapped_link_hash_lookup (output_bfd, finfo->info,
- link_order->u.reloc.p->u.name,
- false, false, true));
- if (h == NULL)
+ if (finfo.contents != NULL)
{
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL,
- (asection *) NULL, (bfd_vma) 0)))
- return false;
- return true;
+ free (finfo.contents);
+ finfo.contents = NULL;
}
-
- if (h->root.type == bfd_link_hash_common)
+ if (finfo.external_relocs != NULL)
{
- hsec = h->root.u.c.p->section;
- hval = 0;
+ free (finfo.external_relocs);
+ finfo.external_relocs = NULL;
}
- else if (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
+
+ /* The value of the last C_FILE symbol is supposed to be -1. Write
+ it out again. */
+ if (finfo.last_file_index != -1)
{
- hsec = h->root.u.def.section;
- hval = h->root.u.def.value;
+ finfo.last_file.n_value = -(bfd_vma) 1;
+ bfd_coff_swap_sym_out (abfd, (void *) &finfo.last_file,
+ (void *) finfo.outsyms);
+ pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0
+ || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz)
+ goto error_return;
}
- else
+
+ /* Write out all the global symbols which do not come from XCOFF
+ input files. */
+ xcoff_link_hash_traverse (xcoff_hash_table (info),
+ xcoff_write_global_symbol,
+ (void *) &finfo);
+
+ if (finfo.outsyms != NULL)
{
- hsec = NULL;
- hval = 0;
+ free (finfo.outsyms);
+ finfo.outsyms = NULL;
}
- addend = link_order->u.reloc.p->addend;
- if (hsec != NULL)
- addend += (hsec->output_section->vma
- + hsec->output_offset
- + hval);
+ /* Now that we have written out all the global symbols, we know the
+ symbol indices to use for relocs against them, and we can finally
+ write out the relocs. */
+ amt = max_output_reloc_count * relsz;
+ external_relocs = bfd_malloc (amt);
+ if (external_relocs == NULL && max_output_reloc_count != 0)
+ goto error_return;
- if (addend != 0)
+ for (o = abfd->sections; o != NULL; o = o->next)
{
- bfd_size_type size;
- bfd_byte *buf;
- bfd_reloc_status_type rstat;
- boolean ok;
+ struct internal_reloc *irel;
+ struct internal_reloc *irelend;
+ struct xcoff_link_hash_entry **rel_hash;
+ struct xcoff_toc_rel_hash *toc_rel_hash;
+ bfd_byte *erel;
+ bfd_size_type rel_size;
- size = bfd_get_reloc_size (howto);
- buf = (bfd_byte *) bfd_zmalloc (size);
- if (buf == NULL)
- return false;
+ /* A stripped file has no relocs. */
+ if (info->strip == strip_all)
+ {
+ o->reloc_count = 0;
+ continue;
+ }
- rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf);
- switch (rstat)
+ if (o->reloc_count == 0)
+ continue;
+
+ irel = finfo.section_info[o->target_index].relocs;
+ irelend = irel + o->reloc_count;
+ rel_hash = finfo.section_info[o->target_index].rel_hashes;
+ for (; irel < irelend; irel++, rel_hash++, erel += relsz)
{
- case bfd_reloc_ok:
- break;
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- if (! ((*finfo->info->callbacks->reloc_overflow)
- (finfo->info, link_order->u.reloc.p->u.name,
- howto->name, addend, (bfd *) NULL, (asection *) NULL,
- (bfd_vma) 0)))
+ if (*rel_hash != NULL)
{
- free (buf);
- return false;
+ if ((*rel_hash)->indx < 0)
+ {
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, (*rel_hash)->root.root.string,
+ NULL, o, irel->r_vaddr)))
+ goto error_return;
+ (*rel_hash)->indx = 0;
+ }
+ irel->r_symndx = (*rel_hash)->indx;
}
- break;
}
- ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf,
- (file_ptr) link_order->offset, size);
- free (buf);
- if (! ok)
- return false;
- }
- /* Store the reloc information in the right place. It will get
- swapped and written out at the end of the final_link routine. */
+ for (toc_rel_hash = finfo.section_info[o->target_index].toc_rel_hashes;
+ toc_rel_hash != NULL;
+ toc_rel_hash = toc_rel_hash->next)
+ {
+ if (toc_rel_hash->h->u.toc_indx < 0)
+ {
+ if (! ((*info->callbacks->unattached_reloc)
+ (info, toc_rel_hash->h->root.root.string,
+ NULL, o, toc_rel_hash->rel->r_vaddr)))
+ goto error_return;
+ toc_rel_hash->h->u.toc_indx = 0;
+ }
+ toc_rel_hash->rel->r_symndx = toc_rel_hash->h->u.toc_indx;
+ }
- irel = (finfo->section_info[output_section->target_index].relocs
- + output_section->reloc_count);
- rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes
- + output_section->reloc_count);
+ /* XCOFF requires that the relocs be sorted by address. We tend
+ to produce them in the order in which their containing csects
+ appear in the symbol table, which is not necessarily by
+ address. So we sort them here. There may be a better way to
+ do this. */
+ qsort ((void *) finfo.section_info[o->target_index].relocs,
+ o->reloc_count, sizeof (struct internal_reloc),
+ xcoff_sort_relocs);
- memset (irel, 0, sizeof (struct internal_reloc));
- *rel_hash_ptr = NULL;
+ irel = finfo.section_info[o->target_index].relocs;
+ irelend = irel + o->reloc_count;
+ erel = external_relocs;
+ for (; irel < irelend; irel++, rel_hash++, erel += relsz)
+ bfd_coff_swap_reloc_out (abfd, (void *) irel, (void *) erel);
- irel->r_vaddr = output_section->vma + link_order->offset;
+ rel_size = relsz * o->reloc_count;
+ if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
+ || bfd_bwrite ((void *) external_relocs, rel_size, abfd) != rel_size)
+ goto error_return;
+ }
- if (h->indx >= 0)
- irel->r_symndx = h->indx;
- else
+ if (external_relocs != NULL)
{
- /* Set the index to -2 to force this symbol to get written out. */
- h->indx = -2;
- *rel_hash_ptr = h;
- irel->r_symndx = 0;
+ free (external_relocs);
+ external_relocs = NULL;
}
- irel->r_type = howto->type;
- irel->r_size = howto->bitsize - 1;
- if (howto->complain_on_overflow == complain_overflow_signed)
- irel->r_size |= 0x80;
-
- ++output_section->reloc_count;
-
- /* Now output the reloc to the .loader section. */
-
- ldrel.l_vaddr = irel->r_vaddr;
-
- if (hsec != NULL)
+ /* Free up the section information. */
+ if (finfo.section_info != NULL)
{
- const char *secname;
-
- secname = hsec->output_section->name;
+ unsigned int i;
- if (strcmp (secname, ".text") == 0)
- ldrel.l_symndx = 0;
- else if (strcmp (secname, ".data") == 0)
- ldrel.l_symndx = 1;
- else if (strcmp (secname, ".bss") == 0)
- ldrel.l_symndx = 2;
- else
- {
- (*_bfd_error_handler)
- (_("%s: loader reloc in unrecognized section `%s'"),
- bfd_get_filename (output_bfd), secname);
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
- }
- }
- else
- {
- if (h->ldindx < 0)
+ for (i = 0; i < abfd->section_count; i++)
{
- (*_bfd_error_handler)
- (_("%s: `%s' in loader reloc but not loader sym"),
- bfd_get_filename (output_bfd),
- h->root.root.string);
- bfd_set_error (bfd_error_bad_value);
- return false;
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
}
- ldrel.l_symndx = h->ldindx;
+ free (finfo.section_info);
+ finfo.section_info = NULL;
}
- ldrel.l_rtype = (irel->r_size << 8) | irel->r_type;
- ldrel.l_rsecnm = output_section->target_index;
- bfd_xcoff_swap_ldrel_out (output_bfd, &ldrel, finfo->ldrel);
- finfo->ldrel += bfd_xcoff_ldrelsz(output_bfd);
+ /* Write out the loader section contents. */
+ BFD_ASSERT ((bfd_byte *) finfo.ldrel
+ == (xcoff_hash_table (info)->loader_section->contents
+ + xcoff_hash_table (info)->ldhdr.l_impoff));
+ o = xcoff_hash_table (info)->loader_section;
+ if (! bfd_set_section_contents (abfd, o->output_section, o->contents,
+ (file_ptr) o->output_offset, o->size))
+ goto error_return;
- return true;
-}
+ /* Write out the magic sections. */
+ o = xcoff_hash_table (info)->linkage_section;
+ if (o->size > 0
+ && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
+ (file_ptr) o->output_offset,
+ o->size))
+ goto error_return;
+ o = xcoff_hash_table (info)->toc_section;
+ if (o->size > 0
+ && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
+ (file_ptr) o->output_offset,
+ o->size))
+ goto error_return;
+ o = xcoff_hash_table (info)->descriptor_section;
+ if (o->size > 0
+ && ! bfd_set_section_contents (abfd, o->output_section, o->contents,
+ (file_ptr) o->output_offset,
+ o->size))
+ goto error_return;
-/* Sort relocs by VMA. This is called via qsort. */
+ /* Write out the string table. */
+ pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0)
+ goto error_return;
+ H_PUT_32 (abfd,
+ _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
+ strbuf);
+ amt = STRING_SIZE_SIZE;
+ if (bfd_bwrite (strbuf, amt, abfd) != amt)
+ goto error_return;
+ if (! _bfd_stringtab_emit (abfd, finfo.strtab))
+ goto error_return;
-static int
-xcoff_sort_relocs (p1, p2)
- const PTR p1;
- const PTR p2;
-{
- const struct internal_reloc *r1 = (const struct internal_reloc *) p1;
- const struct internal_reloc *r2 = (const struct internal_reloc *) p2;
+ _bfd_stringtab_free (finfo.strtab);
- if (r1->r_vaddr > r2->r_vaddr)
- return 1;
- else if (r1->r_vaddr < r2->r_vaddr)
- return -1;
- else
- return 0;
-}
+ /* Write out the debugging string table. */
+ o = xcoff_hash_table (info)->debug_section;
+ if (o != NULL)
+ {
+ struct bfd_strtab_hash *debug_strtab;
+
+ debug_strtab = xcoff_hash_table (info)->debug_strtab;
+ BFD_ASSERT (o->output_section->size - o->output_offset
+ >= _bfd_stringtab_size (debug_strtab));
+ pos = o->output_section->filepos + o->output_offset;
+ if (bfd_seek (abfd, pos, SEEK_SET) != 0)
+ goto error_return;
+ if (! _bfd_stringtab_emit (abfd, debug_strtab))
+ goto error_return;
+ }
+
+ /* Setting bfd_get_symcount to 0 will cause write_object_contents to
+ not try to write out the symbols. */
+ bfd_get_symcount (abfd) = 0;
+
+ return TRUE;
+ error_return:
+ if (finfo.strtab != NULL)
+ _bfd_stringtab_free (finfo.strtab);
+ if (finfo.section_info != NULL)
+ {
+ unsigned int i;
+ for (i = 0; i < abfd->section_count; i++)
+ {
+ if (finfo.section_info[i].relocs != NULL)
+ free (finfo.section_info[i].relocs);
+ if (finfo.section_info[i].rel_hashes != NULL)
+ free (finfo.section_info[i].rel_hashes);
+ }
+ free (finfo.section_info);
+ }
+ if (finfo.internal_syms != NULL)
+ free (finfo.internal_syms);
+ if (finfo.sym_indices != NULL)
+ free (finfo.sym_indices);
+ if (finfo.outsyms != NULL)
+ free (finfo.outsyms);
+ if (finfo.linenos != NULL)
+ free (finfo.linenos);
+ if (finfo.contents != NULL)
+ free (finfo.contents);
+ if (finfo.external_relocs != NULL)
+ free (finfo.external_relocs);
+ if (external_relocs != NULL)
+ free (external_relocs);
+ return FALSE;
+}