/* Routines to help build PEI-format DLLs (Win32 etc)
- Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008 Free Software Foundation, Inc.
+ Copyright (C) 1998-2017 Free Software Foundation, Inc.
Written by DJ Delorie <dj@cygnus.com>
This file is part of the GNU Binutils.
#include "bfd.h"
#include "bfdlink.h"
#include "libiberty.h"
+#include "filenames.h"
#include "safe-ctype.h"
#include <time.h>
should run in parallel with addresses vector (FirstThunk), i.e. that they
should have same number of elements and terminated with zero. We violate
this, since FirstThunk points directly into machine code. But in practice,
- OS loader implemented the sane way: it goes thru OriginalFirstThunk and
+ OS loader implemented the sane way: it goes through OriginalFirstThunk and
puts addresses to FirstThunk, not something else. It once again should be
noted that dll and symbol name structures are reused across fixup entries
and should be there anyway to support standard import stuff, so sustained
def_file * pe_def_file = 0;
int pe_dll_export_everything = 0;
+int pe_dll_exclude_all_symbols = 0;
int pe_dll_do_default_excludes = 1;
int pe_dll_kill_ats = 0;
int pe_dll_stdcall_aliases = 0;
int pe_dll_warn_dup_exports = 0;
int pe_dll_compat_implib = 0;
int pe_dll_extra_pe_debug = 0;
+int pe_use_nul_prefixed_import_tables = 0;
+int pe_use_coff_long_section_names = -1;
+int pe_leading_underscore = -1;
/* Static variables and types. */
int pe_arch;
int bfd_arch;
bfd_boolean underscored;
- const autofilter_entry_type* autofilter_symbollist;
+ const autofilter_entry_type* autofilter_symbollist;
}
pe_details_type;
{ STRING_COMMA_LEN ("_cygwin_crt0_common@8") },
{ STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") },
{ STRING_COMMA_LEN ("cygwin_attach_dll") },
-#endif
+#endif
{ STRING_COMMA_LEN ("cygwin_premain0") },
{ STRING_COMMA_LEN ("cygwin_premain1") },
{ STRING_COMMA_LEN ("cygwin_premain2") },
{ STRING_COMMA_LEN ("_impure_ptr") },
{ STRING_COMMA_LEN ("_fmode") },
{ STRING_COMMA_LEN ("environ") },
+ { STRING_COMMA_LEN ("__dso_handle") },
{ NULL, 0 }
};
#define PE_ARCH_arm_epoc 5
#define PE_ARCH_arm_wince 6
-static const pe_details_type pe_detail_list[] =
+/* Don't make it constant as underscore mode gets possibly overriden
+ by target or -(no-)leading-underscore option. */
+static pe_details_type pe_detail_list[] =
{
{
#ifdef pe_use_x86_64
#endif
PE_ARCH_i386,
bfd_arch_i386,
+#ifdef pe_use_x86_64
+ FALSE,
+#else
TRUE,
+#endif
+ autofilter_symbollist_i386
+ },
+#ifdef pe_use_x86_64
+ {
+ "pei-x86-64",
+ "pe-bigobj-x86-64",
+ 3 /* R_IMAGEBASE */,
+ PE_ARCH_i386,
+ bfd_arch_i386,
+ FALSE,
autofilter_symbollist_i386
},
+#endif
{
"pei-shl",
"pe-shl",
returning zero if so or -1 if not. */
static int libnamencmp (const char *libname, const autofilter_entry_type *afptr)
{
- if (strncmp (libname, afptr->name, afptr->len))
+ if (filename_ncmp (libname, afptr->name, afptr->len))
return -1;
libname += afptr->len;
{ STRING_COMMA_LEN ("__rtti_") },
{ STRING_COMMA_LEN ("__builtin_") },
/* Don't re-export auto-imported symbols. */
- { STRING_COMMA_LEN ("_nm_") },
+ { STRING_COMMA_LEN ("__nm_") },
/* Don't export symbols specifying internal DLL layout. */
{ STRING_COMMA_LEN ("_head_") },
{ STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") },
if (strcmp (pe_detail_list[i].target_name, target) == 0
|| strcmp (pe_detail_list[i].object_target, target) == 0)
{
+ int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */
+ if (u == -1)
+ bfd_get_target_info (target, NULL, NULL, &u, NULL);
+ if (u == -1)
+ abort ();
+ pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE);
pe_details = pe_detail_list + i;
+ pe_leading_underscore = (u != 0 ? 1 : 0);
return;
}
- einfo (_("%XUnsupported PEI architecture: %s\n"), target);
+ einfo (_("%P%X: Unsupported PEI architecture: %s\n"), target);
exit (1);
}
{
const def_file_export *a = va;
const def_file_export *b = vb;
-
- return strcmp (a->name, b->name);
+ char *an = a->name;
+ char *bn = b->name;
+ if (a->its_name)
+ an = a->its_name;
+ if (b->its_name)
+ bn = b->its_name;
+
+ return strcmp (an, bn);
}
/* Read and process the .DEF file. */
static int
auto_export (bfd *abfd, def_file *d, const char *n)
{
- int i;
+ def_file_export key;
struct exclude_list_struct *ex;
const autofilter_entry_type *afptr;
- const char * libname = 0;
+ const char * libname = NULL;
+
if (abfd && abfd->my_archive)
libname = lbasename (abfd->my_archive->filename);
- for (i = 0; i < d->num_exports; i++)
- if (strcmp (d->exports[i].name, n) == 0)
- return 0;
+ key.name = key.its_name = (char *) n;
+
+ /* Return false if n is in the d->exports table. */
+ if (bsearch (&key, d->exports, d->num_exports,
+ sizeof (pe_def_file->exports[0]), pe_export_sort))
+ return 0;
if (pe_dll_do_default_excludes)
{
that begin with '__'; this was tried and
it is too restrictive. Instead we have
a target specific list to use: */
- afptr = pe_details->autofilter_symbollist;
+ afptr = pe_details->autofilter_symbollist;
while (afptr->name)
{
if (ex->type == EXCLUDELIBS)
{
if (libname
- && ((strcmp (libname, ex->string) == 0)
+ && ((filename_cmp (libname, ex->string) == 0)
|| (strcasecmp ("ALL", ex->string) == 0)))
return 0;
}
else if (ex->type == EXCLUDEFORIMPLIB)
{
- if (strcmp (abfd->filename, ex->string) == 0)
+ if (filename_cmp (abfd->filename, ex->string) == 0)
return 0;
}
else if (strcmp (n, ex->string) == 0)
}
static void
-process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
+process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
{
int i, j;
struct bfd_link_hash_entry *blhe;
bfd *b;
struct bfd_section *s;
def_file_export *e = 0;
+ bfd_boolean resort_needed;
if (!pe_def_file)
pe_def_file = def_file_empty ();
/* First, run around to all the objects looking for the .drectve
sections, and push those into the def file too. */
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
s = bfd_get_section_by_name (b, ".drectve");
if (s)
}
}
- /* If we are not building a DLL, when there are no exports
- we do not build an export table at all. */
- if (!pe_dll_export_everything && pe_def_file->num_exports == 0
- && info->executable)
+ /* Process aligned common symbol information from the
+ .drectve sections now; common symbol allocation is
+ done before final link, so it will be too late to
+ process them in process_embedded_commands() called
+ from _bfd_coff_link_input_bfd(). */
+ if (pe_def_file->aligncomms)
+ {
+ def_file_aligncomm *ac = pe_def_file->aligncomms;
+ while (ac)
+ {
+ struct coff_link_hash_entry *sym_hash;
+ sym_hash = coff_link_hash_lookup (coff_hash_table (info),
+ ac->symbol_name, FALSE, FALSE, FALSE);
+ if (sym_hash && sym_hash->root.type == bfd_link_hash_common
+ && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment)
+ {
+ sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment;
+ }
+ ac = ac->next;
+ }
+ }
+
+ /* If we are building an executable and there is nothing
+ to export, we do not build an export table at all. */
+ if (bfd_link_executable (info) && pe_def_file->num_exports == 0
+ && (!pe_dll_export_everything || pe_dll_exclude_all_symbols))
return;
/* Now, maybe export everything else the default way. */
- if (pe_dll_export_everything || pe_def_file->num_exports == 0)
+ if ((pe_dll_export_everything || pe_def_file->num_exports == 0)
+ && !pe_dll_exclude_all_symbols)
{
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
asymbol **symbols;
int nsyms;
/* We should export symbols which are either global or not
anything at all. (.bss data is the latter)
We should not export undefined symbols. */
- if (symbols[j]->section != &bfd_und_section
- && ((symbols[j]->flags & BSF_GLOBAL)
- || (symbols[j]->flags == 0)))
+ bfd_boolean would_export
+ = (symbols[j]->section != bfd_und_section_ptr
+ && ((symbols[j]->flags & BSF_GLOBAL)
+ || (symbols[j]->flags == 0)));
+ if (link_info.version_info && would_export)
+ would_export
+ = !bfd_hide_sym_by_version (link_info.version_info,
+ symbols[j]->name);
+ if (would_export)
{
const char *sn = symbols[j]->name;
if (auto_export (b, pe_def_file, sn))
{
+ int is_dup = 0;
def_file_export *p;
- p=def_file_add_export (pe_def_file, sn, 0, -1);
+
+ p = def_file_add_export (pe_def_file, sn, 0, -1,
+ NULL, &is_dup);
/* Fill data flag properly, from dlltool.c. */
- p->flag_data = !(symbols[j]->flags & BSF_FUNCTION);
+ if (!is_dup)
+ p->flag_data = !(symbols[j]->flags & BSF_FUNCTION);
}
}
}
#undef NE
#define NE pe_def_file->num_exports
+ /* Don't create an empty export table. */
+ if (NE == 0)
+ return;
+
+ resort_needed = FALSE;
+
/* Canonicalize the export list. */
if (pe_dll_kill_ats)
{
for (i = 0; i < NE; i++)
{
- if (strchr (pe_def_file->exports[i].name, '@'))
+ /* Check for fastcall/stdcall-decoration, but ignore
+ C++ mangled names. */
+ if (pe_def_file->exports[i].name[0] != '?'
+ && strchr (pe_def_file->exports[i].name, '@'))
{
/* This will preserve internal_name, which may have been
pointing to the same memory as name, or might not
have. */
int lead_at = (*pe_def_file->exports[i].name == '@');
char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at);
- char *tmp_at = strchr (tmp, '@');
+ char *tmp_at = strrchr (tmp, '@');
if (tmp_at)
*tmp_at = 0;
else
- einfo (_("%XCannot export %s: invalid export name\n"),
+ einfo (_("%P%X: Cannot export %s: invalid export name\n"),
pe_def_file->exports[i].name);
pe_def_file->exports[i].name = tmp;
+ resort_needed = TRUE;
}
}
}
+ /* Re-sort the exports table as we have possibly changed the order
+ by removing leading @. */
+ if (resort_needed)
+ qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]),
+ pe_export_sort);
+
if (pe_dll_stdcall_aliases)
{
for (i = 0; i < NE; i++)
if (strchr (pe_def_file->exports[i].name, '@'))
{
+ int is_dup = 1;
int lead_at = (*pe_def_file->exports[i].name == '@');
char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at);
if (auto_export (NULL, pe_def_file, tmp))
def_file_add_export (pe_def_file, tmp,
pe_def_file->exports[i].internal_name,
- -1);
- else
- free (tmp);
+ -1, NULL, &is_dup);
+ if (is_dup)
+ free (tmp);
}
}
}
/* Convenience, but watch out for it changing. */
e = pe_def_file->exports;
- exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma));
- exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *));
-
- memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *));
- max_ordinal = 0;
- min_ordinal = 65536;
- count_exported = 0;
- count_exported_byname = 0;
- count_with_ordinals = 0;
-
- qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]),
- pe_export_sort);
for (i = 0, j = 0; i < NE; i++)
{
if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0)
{
if (pe_dll_warn_dup_exports)
/* xgettext:c-format */
- einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"),
+ einfo (_("%P%X: Error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"),
e[j - 1].name, e[j - 1].ordinal, e[i].ordinal);
}
else
{
if (pe_dll_warn_dup_exports)
/* xgettext:c-format */
- einfo (_("Warning, duplicate EXPORT: %s\n"),
+ einfo (_("%P: Warning, duplicate EXPORT: %s\n"),
e[j - 1].name);
}
e[j - 1].flag_constant |= e[i].flag_constant;
e[j - 1].flag_noname |= e[i].flag_noname;
e[j - 1].flag_data |= e[i].flag_data;
+ if (e[i].name)
+ free (e[i].name);
+ if (e[i].internal_name)
+ free (e[i].internal_name);
+ if (e[i].its_name)
+ free (e[i].its_name);
}
else
{
}
pe_def_file->num_exports = j; /* == NE */
+ exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma));
+ exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *));
+
+ memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *));
+ max_ordinal = 0;
+ min_ordinal = 65536;
+ count_exported = 0;
+ count_exported_byname = 0;
+ count_with_ordinals = 0;
+
for (i = 0; i < NE; i++)
{
+ char *int_name = pe_def_file->exports[i].internal_name;
char *name;
- /* Check for forward exports */
- if (strchr (pe_def_file->exports[i].internal_name, '.'))
- {
- count_exported++;
- if (!pe_def_file->exports[i].flag_noname)
- count_exported_byname++;
-
- pe_def_file->exports[i].flag_forward = 1;
-
- if (pe_def_file->exports[i].ordinal != -1)
- {
- if (max_ordinal < pe_def_file->exports[i].ordinal)
- max_ordinal = pe_def_file->exports[i].ordinal;
- if (min_ordinal > pe_def_file->exports[i].ordinal)
- min_ordinal = pe_def_file->exports[i].ordinal;
- count_with_ordinals++;
- }
-
- continue;
- }
+ /* PR 19803: Make sure that any exported symbol does not get garbage collected. */
+ lang_add_gc_name (int_name);
- name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2);
- if (pe_details->underscored
- && (*pe_def_file->exports[i].internal_name != '@'))
+ name = xmalloc (strlen (int_name) + 2);
+ if (pe_details->underscored && int_name[0] != '@')
{
*name = '_';
- strcpy (name + 1, pe_def_file->exports[i].internal_name);
+ strcpy (name + 1, int_name);
+
+ /* PR 19803: The alias must be preserved as well. */
+ lang_add_gc_name (xstrdup (name));
}
else
- strcpy (name, pe_def_file->exports[i].internal_name);
+ strcpy (name, int_name);
blhe = bfd_link_hash_lookup (info->hash,
name,
else
exported_symbol_sections[i] = blhe->u.c.p->section;
+ if (pe_def_file->exports[i].ordinal != -1)
+ {
+ if (max_ordinal < pe_def_file->exports[i].ordinal)
+ max_ordinal = pe_def_file->exports[i].ordinal;
+ if (min_ordinal > pe_def_file->exports[i].ordinal)
+ min_ordinal = pe_def_file->exports[i].ordinal;
+ count_with_ordinals++;
+ }
+ }
+ /* Check for forward exports. These are indicated in DEF files by an
+ export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME
+ but we must take care not to be fooled when the user wants to export
+ a symbol that actually really has a dot in it, so we only check
+ for them here, after real defined symbols have already been matched. */
+ else if (strchr (int_name, '.'))
+ {
+ count_exported++;
+ if (!pe_def_file->exports[i].flag_noname)
+ count_exported_byname++;
+
+ pe_def_file->exports[i].flag_forward = 1;
+
if (pe_def_file->exports[i].ordinal != -1)
{
if (max_ordinal < pe_def_file->exports[i].ordinal)
else if (blhe && blhe->type == bfd_link_hash_undefined)
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol not defined\n"),
- pe_def_file->exports[i].internal_name);
+ einfo (_("%P%X: Cannot export %s: symbol not defined\n"),
+ int_name);
}
else if (blhe)
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"),
- pe_def_file->exports[i].internal_name,
+ einfo (_("%P%X: Cannot export %s: symbol wrong type (%d vs %d)\n"),
+ int_name,
blhe->type, bfd_link_hash_defined);
}
else
{
/* xgettext:c-format */
- einfo (_("%XCannot export %s: symbol not found\n"),
- pe_def_file->exports[i].internal_name);
+ einfo (_("%P%X: Cannot export %s: symbol not found\n"),
+ int_name);
}
free (name);
}
if (pi != -1)
{
/* xgettext:c-format */
- einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"),
+ einfo (_("%P%X: Error: ordinal used twice: %d (%s vs %s)\n"),
pe_def_file->exports[i].ordinal,
pe_def_file->exports[i].name,
pe_def_file->exports[pi].name);
}
exported_symbols[ei] = i;
}
- name_table_size += strlen (pe_def_file->exports[i].name) + 1;
+ if (pe_def_file->exports[i].its_name)
+ name_table_size += strlen (pe_def_file->exports[i].its_name) + 1;
+ else
+ name_table_size += strlen (pe_def_file->exports[i].name) + 1;
}
/* Reserve space for the forward name. */
pe_def_file->exports[i].ordinal = next_ordinal;
}
+ /* PR 12969: Check for more than 1^16 ordinals. */
+ if (max_ordinal > 65535 || next_ordinal > 65535)
+ /* xgettext:c-format */
+ einfo(_("%P%X: Error: export ordinal too large: %d\n"),
+ max_ordinal > next_ordinal ? max_ordinal : next_ordinal);
+
/* OK, now we can allocate some memory. */
edata_sz = (40 /* directory */
+ 4 * export_table_size /* addresses */
}
/* Fill the exported symbol offsets. The preliminary work has already
- been done in process_def_file(). */
+ been done in process_def_file_and_drectve(). */
static void
fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
unsigned char *enameptrs;
unsigned char *eordinals;
char *enamestr;
- time_t now;
-
- time (&now);
edata_d = xmalloc (edata_sz);
/* Note use of array pointer math here. */
edirectory = edata_d;
- eaddresses = edata_d + 40;
+ eaddresses = edirectory + 40;
enameptrs = eaddresses + 4 * export_table_size;
eordinals = enameptrs + 4 * count_exported_byname;
enamestr = (char *) eordinals + 2 * count_exported_byname;
+ edata_s->output_section->vma - image_base)
memset (edata_d, 0, edata_sz);
- bfd_put_32 (abfd, now, edata_d + 4);
+
+ if (pe_data (abfd)->insert_timestamp)
+ H_PUT_32 (abfd, time (0), edata_d + 4);
+
if (pe_def_file->version_major != -1)
{
bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8);
if (!pe_def_file->exports[s].flag_noname)
{
char *ename = pe_def_file->exports[s].name;
+ if (pe_def_file->exports[s].its_name)
+ ename = pe_def_file->exports[s].its_name;
bfd_put_32 (abfd, ERVA (enamestr), enameptrs);
enameptrs += 4;
void
pe_walk_relocs_of_symbol (struct bfd_link_info *info,
- const char *name,
- int (*cb) (arelent *, asection *))
+ char *name,
+ int (*cb) (arelent *, asection *, char *))
{
bfd *b;
asection *s;
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
{
asymbol **symbols;
- int nsyms;
if (!bfd_generic_link_read_symbols (b))
{
}
symbols = bfd_get_outsymbols (b);
- nsyms = bfd_get_symcount (b);
for (s = b->sections; s; s = s->next)
{
struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr;
if (!strcmp (name, sym->name))
- cb (relocs[i], s);
+ cb (relocs[i], s, name);
}
free (relocs);
struct bfd_section *s;
total_relocs = 0;
- for (b = info->input_bfds; b; b = b->link_next)
+ for (b = info->input_bfds; b; b = b->link.next)
for (s = b->sections; s; s = s->next)
total_relocs += s->reloc_count;
total_relocs = 0;
bi = 0;
- for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next)
+ for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next)
{
arelent **relocs;
- int relsize, nrelocs, i;
+ int relsize, nrelocs;
for (s = b->sections; s; s = s->next)
{
bfd_vma sec_vma = s->output_section->vma + s->output_offset;
asymbol **symbols;
- int nsyms;
/* If it's not loaded, we don't need to relocate it this way. */
if (!(s->output_section->flags & SEC_LOAD))
/* I don't know why there would be a reloc for these, but I've
seen it happen - DJ */
- if (s->output_section == &bfd_abs_section)
+ if (s->output_section == bfd_abs_section_ptr)
continue;
if (s->output_section->vma == 0)
}
symbols = bfd_get_outsymbols (b);
- nsyms = bfd_get_symcount (b);
relsize = bfd_get_reloc_upper_bound (b, s);
relocs = xmalloc (relsize);
nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols);
if (!relocs[i]->howto->pc_relative
&& relocs[i]->howto->type != pe_details->imagebase_reloc)
{
- bfd_vma sym_vma;
struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr;
- /* Don't create relocs for undefined weak symbols. */
+ /* Don't create relocs for undefined weak symbols. */
if (sym->flags == BSF_WEAK)
{
struct bfd_link_hash_entry *blhe
- = bfd_link_hash_lookup (info->hash, sym->name,
+ = bfd_wrapped_link_hash_lookup (abfd, info, sym->name,
FALSE, FALSE, FALSE);
- if (!blhe || blhe->type != bfd_link_hash_defined)
- continue;
+ if (blhe && blhe->type == bfd_link_hash_undefweak)
+ {
+ /* Check aux sym and see if it is defined or not. */
+ struct coff_link_hash_entry *h, *h2;
+ h = (struct coff_link_hash_entry *)blhe;
+ if (h->symbol_class != C_NT_WEAK || h->numaux != 1)
+ continue;
+ h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes
+ [h->aux->x_sym.x_tagndx.l];
+ /* We don't want a base reloc if the aux sym is not
+ found, undefined, or if it is the constant ABS
+ zero default value. (We broaden that slightly by
+ not testing the value, just the section; there's
+ no reason we'd want a reference to any absolute
+ address to get relocated during rebasing). */
+ if (!h2 || h2->root.type == bfd_link_hash_undefined
+ || h2->root.u.def.section == bfd_abs_section_ptr)
+ continue;
+ }
+ else if (!blhe || blhe->type != bfd_link_hash_defined)
+ continue;
+ }
+ /* Nor for Dwarf FDE references to discarded sections. */
+ else if (bfd_is_abs_section (sym->section->output_section))
+ {
+ /* We only ignore relocs from .eh_frame sections, as
+ they are discarded by the final link rather than
+ resolved against the kept section. */
+ if (!strcmp (s->name, ".eh_frame"))
+ continue;
}
- sym_vma = (relocs[i]->addend
- + sym->value
- + sym->section->vma
- + sym->section->output_offset
- + sym->section->output_section->vma);
reloc_data[total_relocs].vma = sec_vma + relocs[i]->address;
#define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift)
/* Fall through. */
default:
/* xgettext:c-format */
- einfo (_("%XError: %d-bit reloc in dll\n"),
+ einfo (_("%P%X: Error: %d-bit reloc in dll\n"),
relocs[i]->howto->bitsize);
break;
}
if (out == NULL)
/* xgettext:c-format */
- einfo (_("%s: Can't open output def file %s\n"),
- program_name, pe_out_def_filename);
+ einfo (_("%P: Can't open output def file %s\n"),
+ pe_out_def_filename);
if (pe_def_file)
{
else
fprintf (out, "%d", im->ordinal);
+ if (im->its_name)
+ {
+ fprintf (out, " == ");
+ quoteput (im->its_name, out, 0);
+ }
+
fprintf (out, "\n");
}
}
static asymbol **symtab;
static int symptr;
static int tmp_seq;
+static int tmp_seq2;
static const char *dll_filename;
static char *dll_symname;
-#define UNDSEC (asection *) &bfd_und_section
+#define UNDSEC bfd_und_section_ptr
static asection *
quick_section (bfd *abfd, const char *name, int flags, int align)
d2 = xmalloc (20);
id2->contents = d2;
memset (d2, 0, 20);
- d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */
+ if (pe_use_nul_prefixed_import_tables)
+ d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */
quick_reloc (abfd, 0, BFD_RELOC_RVA, 2);
quick_reloc (abfd, 12, BFD_RELOC_RVA, 4);
quick_reloc (abfd, 16, BFD_RELOC_RVA, 1);
save_relocs (id2);
- bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE);
+ if (pe_use_nul_prefixed_import_tables)
+ bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE);
+ else
+ bfd_set_section_size (abfd, id5, 0);
d5 = xmalloc (PE_IDATA5_SIZE);
id5->contents = d5;
memset (d5, 0, PE_IDATA5_SIZE);
-
- bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE);
+ if (pe_use_nul_prefixed_import_tables)
+ bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE);
+ else
+ bfd_set_section_size (abfd, id4, 0);
d4 = xmalloc (PE_IDATA4_SIZE);
id4->contents = d4;
memset (d4, 0, PE_IDATA4_SIZE);
bfd_set_symtab (abfd, symtab, symptr);
bfd_set_section_contents (abfd, id2, d2, 0, 20);
- bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE);
- bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE);
+ if (pe_use_nul_prefixed_import_tables)
+ {
+ bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE);
+ bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE);
+ }
+ else
+ {
+ bfd_set_section_contents (abfd, id5, d5, 0, 0);
+ bfd_set_section_contents (abfd, id4, d4, 0, 0);
+ }
bfd_make_readable (abfd);
return abfd;
bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0);
symptr = 0;
- symtab = xmalloc (11 * sizeof (asymbol *));
- tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2);
+ symtab = xmalloc (12 * sizeof (asymbol *));
+
+ tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2);
id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2);
id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2);
id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2);
/* Symbol to reference ord/name of imported
data symbol, used to implement auto-import. */
if (exp->flag_data)
- quick_symbol (abfd, U ("_nm_"), U (""), exp->internal_name, id6,
+ quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6,
BSF_GLOBAL,0);
}
if (pe_dll_compat_implib)
- quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5,
+ quick_symbol (abfd, "___imp_", exp->internal_name, "", id5,
BSF_GLOBAL, 0);
if (include_jmp_stub)
#ifdef pe_use_x86_64
quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2);
#else
+ /* Mark this object as SAFESEH compatible. */
+ quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr,
+ BSF_LOCAL, 1);
quick_reloc (abfd, 2, BFD_RELOC_32, 2);
#endif
break;
}
else
{
+ int ord;
+
/* { short, asciz } */
- len = 2 + strlen (exp->name) + 1;
+ if (exp->its_name)
+ len = 2 + strlen (exp->its_name) + 1;
+ else
+ len = 2 + strlen (exp->name) + 1;
if (len & 1)
len++;
bfd_set_section_size (abfd, id6, len);
d6 = xmalloc (len);
id6->contents = d6;
memset (d6, 0, len);
- d6[0] = exp->hint & 0xff;
- d6[1] = exp->hint >> 8;
- strcpy ((char *) d6 + 2, exp->name);
+
+ /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal
+ contains an invalid value (-1). */
+ ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint;
+ d6[0] = ord;
+ d6[1] = ord >> 8;
+
+ if (exp->its_name)
+ strcpy ((char*) d6 + 2, exp->its_name);
+ else
+ strcpy ((char *) d6 + 2, exp->name);
}
bfd_set_symtab (abfd, symtab, symptr);
return abfd;
}
+static bfd *
+make_singleton_name_imp (const char *import, bfd *parent)
+{
+ /* Name thunks go to idata$4. */
+ asection *id5;
+ unsigned char *d5;
+ char *oname;
+ bfd *abfd;
+
+ oname = xmalloc (20);
+ sprintf (oname, "nmimp%06d.o", tmp_seq2);
+ tmp_seq2++;
+
+ abfd = bfd_create (oname, parent);
+ bfd_find_target (pe_details->object_target, abfd);
+ bfd_make_writable (abfd);
+
+ bfd_set_format (abfd, bfd_object);
+ bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0);
+
+ symptr = 0;
+ symtab = xmalloc (3 * sizeof (asymbol *));
+ id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2);
+ quick_symbol (abfd, "__imp_", import, "", id5, BSF_GLOBAL, 0);
+
+ /* We need space for the real thunk and for the null terminator. */
+ bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2);
+ d5 = xmalloc (PE_IDATA5_SIZE * 2);
+ id5->contents = d5;
+ memset (d5, 0, PE_IDATA5_SIZE * 2);
+ quick_reloc (abfd, 0, BFD_RELOC_RVA, 2);
+ save_relocs (id5);
+
+ bfd_set_symtab (abfd, symtab, symptr);
+
+ bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2);
+
+ bfd_make_readable (abfd);
+ return abfd;
+}
+
static bfd *
make_singleton_name_thunk (const char *import, bfd *parent)
{
symptr = 0;
symtab = xmalloc (3 * sizeof (asymbol *));
id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2);
- quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0);
- quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0);
/* We need space for the real thunk and for the null terminator. */
bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2);
}
static char *
-make_import_fixup_mark (arelent *rel)
+make_import_fixup_mark (arelent *rel, char *name)
{
/* We convert reloc to symbol, for later reference. */
- static int counter;
- static char *fixup_name = NULL;
- static size_t buffer_len = 0;
-
+ static unsigned int counter;
struct bfd_symbol *sym = *rel->sym_ptr_ptr;
-
bfd *abfd = bfd_asymbol_bfd (sym);
struct bfd_link_hash_entry *bh;
+ char *fixup_name, buf[26];
+ size_t prefix_len;
- if (!fixup_name)
- {
- fixup_name = xmalloc (384);
- buffer_len = 384;
- }
-
- if (strlen (sym->name) + 25 > buffer_len)
- /* Assume 25 chars for "__fu" + counter + "_". If counter is
- bigger than 20 digits long, we've got worse problems than
- overflowing this buffer... */
- {
- free (fixup_name);
- /* New buffer size is length of symbol, plus 25, but
- then rounded up to the nearest multiple of 128. */
- buffer_len = ((strlen (sym->name) + 25) + 127) & ~127;
- fixup_name = xmalloc (buffer_len);
- }
-
- sprintf (fixup_name, "__fu%d_%s", counter++, sym->name);
+ /* "name" buffer has space before the symbol name for prefixes. */
+ sprintf (buf, "__fu%d_", counter++);
+ prefix_len = strlen (buf);
+ fixup_name = name - prefix_len;
+ memcpy (fixup_name, buf, prefix_len);
bh = NULL;
bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL,
static bfd *
make_import_fixup_entry (const char *name,
const char *fixup_name,
- const char *dll_symname,
+ const char *symname,
bfd *parent)
{
asection *id2;
symtab = xmalloc (6 * sizeof (asymbol *));
id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2);
- quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0);
- quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0);
- quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0);
+ quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0);
+ /* For relocator v2 we have to use the .idata$5 element and not
+ fixup_name. */
+ if (link_info.pei386_runtime_pseudo_reloc == 2)
+ quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0);
+ else
+ quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0);
bfd_set_section_size (abfd, id2, 20);
d2 = xmalloc (20);
id2->contents = d2;
memset (d2, 0, 20);
- d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */
quick_reloc (abfd, 0, BFD_RELOC_RVA, 1);
quick_reloc (abfd, 12, BFD_RELOC_RVA, 2);
size += 12;
runtime_pseudp_reloc_v2_init = 1;
}
- quick_symbol (abfd, U ("_imp_"), name, "", UNDSEC, BSF_GLOBAL, 0);
+ quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0);
bfd_set_section_size (abfd, rt_rel, size);
rt_rel_d = xmalloc (size);
quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC,
BSF_NO_FLAGS, 0);
- bfd_set_section_size (abfd, extern_rt_rel, 4);
- extern_rt_rel_d = xmalloc (4);
+ bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE);
+ extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE);
extern_rt_rel->contents = extern_rt_rel_d;
quick_reloc (abfd, 0, BFD_RELOC_RVA, 1);
bfd_set_symtab (abfd, symtab, symptr);
- bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, 4);
+ bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE);
bfd_make_readable (abfd);
return abfd;
}
void
-pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend)
+pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name)
{
- char buf[300];
struct bfd_symbol *sym = *rel->sym_ptr_ptr;
struct bfd_link_hash_entry *name_thunk_sym;
- const char *name = sym->name;
- char *fixup_name = make_import_fixup_mark (rel);
+ struct bfd_link_hash_entry *name_imp_sym;
+ char *fixup_name, *impname;
bfd *b;
+ int need_import_table = 1;
+
+ /* name buffer is allocated with space at beginning for prefixes. */
+ impname = name - (sizeof "__imp_" - 1);
+ memcpy (impname, "__imp_", sizeof "__imp_" - 1);
+ name_imp_sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1);
- sprintf (buf, U ("_nm_thnk_%s"), name);
+ impname = name - (sizeof "__nm_thnk_" - 1);
+ memcpy (impname, "__nm_thnk_", sizeof "__nm_thnk_" - 1);
+ name_thunk_sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1);
- name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
+ fixup_name = make_import_fixup_mark (rel, name);
- if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined)
+ /* For version 2 pseudo relocation we don't need to add an import
+ if the import symbol is already present. */
+ if (link_info.pei386_runtime_pseudo_reloc == 2
+ && name_imp_sym
+ && name_imp_sym->type == bfd_link_hash_defined)
+ need_import_table = 0;
+
+ if (need_import_table == 1
+ && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined))
{
- bfd *b = make_singleton_name_thunk (name, link_info.output_bfd);
+ b = make_singleton_name_thunk (name, link_info.output_bfd);
add_bfd_to_link (b, b->filename, &link_info);
- /* If we ever use autoimport, we have to cast text section writable. */
- config.text_read_only = FALSE;
- link_info.output_bfd->flags &= ~WP_TEXT;
+ /* If we ever use autoimport, we have to cast text section writable.
+ But not for version 2. */
+ if (link_info.pei386_runtime_pseudo_reloc != 2)
+ {
+ config.text_read_only = FALSE;
+ link_info.output_bfd->flags &= ~WP_TEXT;
+ }
+ if (link_info.pei386_runtime_pseudo_reloc == 2)
+ {
+ b = make_singleton_name_imp (name, link_info.output_bfd);
+ add_bfd_to_link (b, b->filename, &link_info);
+ }
}
- if (addend == 0 || link_info.pei386_runtime_pseudo_reloc)
+ if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc)
+ && need_import_table == 1)
{
extern char * pe_data_import_dll;
- char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown";
+ char * symname = pe_data_import_dll ? pe_data_import_dll : "unknown";
- b = make_import_fixup_entry (name, fixup_name, dll_symname,
+ b = make_import_fixup_entry (name, fixup_name, symname,
link_info.output_bfd);
add_bfd_to_link (b, b->filename, &link_info);
}
runtime_pseudo_relocs_created++;
}
else if (addend != 0)
- {
- einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"),
- s->owner, s, rel->address, sym->name);
- einfo ("%X");
- }
+ einfo (_("%P%X%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"),
+ s->owner, s, rel->address, sym->name);
}
if (!outarch)
{
/* xgettext:c-format */
- einfo (_("%XCan't open .lib file: %s\n"), impfilename);
+ einfo (_("%P%X: Can't open .lib file: %s\n"), impfilename);
return;
}
- /* xgettext:c-format */
- info_msg (_("Creating library file: %s\n"), impfilename);
-
+ if (verbose)
+ /* xgettext:c-format */
+ info_msg (_("Creating library file: %s\n"), impfilename);
+
bfd_set_format (outarch, bfd_archive);
outarch->has_armap = 1;
ar_head = make_head (outarch);
/* Iterate the input BFDs, looking for exclude-modules-for-implib. */
- for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
+ for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next)
{
/* Iterate the exclude list. */
struct exclude_list_struct *ex;
{
if (ex->type != EXCLUDEFORIMPLIB)
continue;
- found = (strcmp (ex->string, ibfd->filename) == 0);
+ found = (filename_cmp (ex->string, ibfd->filename) == 0);
}
/* If it matched, we must open a fresh BFD for it (the original
input BFD is still needed for the DLL's final link) and add
it into the archive member chain. */
if (found)
{
- bfd *newbfd = bfd_openr (ibfd->my_archive
+ bfd *newbfd = bfd_openr (ibfd->my_archive
? ibfd->my_archive->filename : ibfd->filename, NULL);
if (!newbfd)
{
- einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename);
+ einfo (_("%P%X: bfd_openr %s: %E\n"), ibfd->filename);
return;
}
if (ibfd->my_archive)
bfd *arbfd = newbfd;
if (!bfd_check_format_matches (arbfd, bfd_archive, NULL))
{
- einfo (_("%X%s(%s): can't find member in non-archive file"),
+ einfo (_("%P%X: %s(%s): can't find member in non-archive file"),
ibfd->my_archive->filename, ibfd->filename);
return;
}
newbfd = NULL;
while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0)
{
- if (strcmp (newbfd->filename, ibfd->filename) == 0)
+ if (filename_cmp (newbfd->filename, ibfd->filename) == 0)
break;
}
if (!newbfd)
{
- einfo (_("%X%s(%s): can't find member in archive"),
+ einfo (_("%P%X: %s(%s): can't find member in archive"),
ibfd->my_archive->filename, ibfd->filename);
return;
}
char *internal = def->exports[i].internal_name;
bfd *n;
- /* Don't add PRIVATE entries to import lib. */
+ /* Don't add PRIVATE entries to import lib. */
if (pe_def_file->exports[i].flag_private)
continue;
+
def->exports[i].internal_name = def->exports[i].name;
+
+ /* PR 19803: If a symbol has been discard due to garbage
+ collection then do not create any exports for it. */
+ {
+ struct coff_link_hash_entry *h;
+
+ h = coff_link_hash_lookup (coff_hash_table (info), internal,
+ FALSE, FALSE, FALSE);
+ if (h != NULL
+ /* If the symbol is hidden and undefined then it
+ has been swept up by garbage collection. */
+ && h->symbol_class == C_HIDDEN
+ && h->root.u.def.section == bfd_und_section_ptr)
+ continue;
+
+ /* If necessary, check with an underscore prefix as well. */
+ if (pe_details->underscored && internal[0] != '@')
+ {
+ char *name;
+
+ name = xmalloc (strlen (internal) + 2);
+ sprintf (name, "_%s", internal);
+
+ h = coff_link_hash_lookup (coff_hash_table (info), name,
+ FALSE, FALSE, FALSE);
+ free (name);
+
+ if (h != NULL
+ /* If the symbol is hidden and undefined then it
+ has been swept up by garbage collection. */
+ && h->symbol_class == C_HIDDEN
+ && h->root.u.def.section == bfd_und_section_ptr)
+ continue;
+ }
+ }
+
n = make_one (def->exports + i, outarch,
! (def->exports + i)->flag_data);
n->archive_next = head;
head = ar_tail;
if (! bfd_set_archive_head (outarch, head))
- einfo ("%Xbfd_set_archive_head: %E\n");
+ einfo ("%P%X: bfd_set_archive_head: %E\n");
if (! bfd_close (outarch))
- einfo ("%Xbfd_close %s: %E\n", impfilename);
+ einfo ("%P%X: bfd_close %s: %E\n", impfilename);
while (head != NULL)
{
}
}
+static int undef_count = 0;
+
+struct key_value
+{
+ char *key;
+ const char *oname;
+};
+
+static struct key_value *udef_table;
+
+static int undef_sort_cmp (const void *l1, const void *r1)
+{
+ const struct key_value *l = l1;
+ const struct key_value *r = r1;
+
+ return strcmp (l->key, r->key);
+}
+
+static struct bfd_link_hash_entry *
+pe_find_cdecl_alias_match (struct bfd_link_info *linfo, char *name)
+{
+ struct bfd_link_hash_entry *h = NULL;
+ struct key_value *kv;
+ struct key_value key;
+ char *at, *lname = xmalloc (strlen (name) + 3);
+
+ strcpy (lname, name);
+
+ at = strchr (lname + (lname[0] == '@'), '@');
+ if (at)
+ at[1] = 0;
+
+ key.key = lname;
+ kv = bsearch (&key, udef_table, undef_count, sizeof (struct key_value),
+ undef_sort_cmp);
+
+ if (kv)
+ {
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ if (h->type == bfd_link_hash_undefined)
+ goto return_h;
+ }
+
+ if (lname[0] == '?')
+ goto return_NULL;
+
+ if (at || lname[0] == '@')
+ {
+ if (lname[0] == '@')
+ {
+ if (pe_details->underscored)
+ lname[0] = '_';
+ else
+ strcpy (lname, lname + 1);
+ key.key = lname;
+ kv = bsearch (&key, udef_table, undef_count,
+ sizeof (struct key_value), undef_sort_cmp);
+ if (kv)
+ {
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ if (h->type == bfd_link_hash_undefined)
+ goto return_h;
+ }
+ }
+ if (at)
+ *strchr (lname, '@') = 0;
+ key.key = lname;
+ kv = bsearch (&key, udef_table, undef_count,
+ sizeof (struct key_value), undef_sort_cmp);
+ if (kv)
+ {
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ if (h->type == bfd_link_hash_undefined)
+ goto return_h;
+ }
+ goto return_NULL;
+ }
+
+ strcat (lname, "@");
+ key.key = lname;
+ kv = bsearch (&key, udef_table, undef_count,
+ sizeof (struct key_value), undef_sort_cmp);
+
+ if (kv)
+ {
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ if (h->type == bfd_link_hash_undefined)
+ goto return_h;
+ }
+
+ if (lname[0] == '_' && pe_details->underscored)
+ lname[0] = '@';
+ else
+ {
+ memmove (lname + 1, lname, strlen (lname) + 1);
+ lname[0] = '@';
+ }
+ key.key = lname;
+
+ kv = bsearch (&key, udef_table, undef_count,
+ sizeof (struct key_value), undef_sort_cmp);
+
+ if (kv)
+ {
+ h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE);
+ if (h->type == bfd_link_hash_undefined)
+ goto return_h;
+ }
+
+ return_NULL:
+ h = NULL;
+ return_h:
+ free (lname);
+ return h;
+}
+
+static bfd_boolean
+pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
+ void *inf ATTRIBUTE_UNUSED)
+{
+ if (h->type == bfd_link_hash_undefined)
+ undef_count++;
+ return TRUE;
+}
+
+static bfd_boolean
+pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
+{
+ if (h->type == bfd_link_hash_undefined)
+ {
+ char *at;
+
+ udef_table[undef_count].key = xstrdup (h->root.string);
+ at = strchr (udef_table[undef_count].key
+ + (udef_table[undef_count].key[0] == '@'), '@');
+ if (at)
+ at[1] = 0;
+ udef_table[undef_count].oname = h->root.string;
+ undef_count++;
+ }
+ return TRUE;
+}
+
+static void
+pe_create_undef_table (void)
+{
+ undef_count = 0;
+
+ /* count undefined symbols */
+
+ bfd_link_hash_traverse (link_info.hash, pe_undef_count, "");
+
+ /* create and fill the corresponding table */
+ udef_table = xmalloc (undef_count * sizeof (struct key_value));
+
+ undef_count = 0;
+ bfd_link_hash_traverse (link_info.hash, pe_undef_fill, "");
+
+ /* sort items */
+ qsort (udef_table, undef_count, sizeof (struct key_value), undef_sort_cmp);
+}
+
static void
-add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info)
+add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo)
{
lang_input_statement_type *fake_file;
fake_file->the_bfd = abfd;
ldlang_add_file (fake_file);
- if (!bfd_link_add_symbols (abfd, link_info))
- einfo ("%Xaddsym %s: %E\n", name);
+ if (!bfd_link_add_symbols (abfd, linfo))
+ einfo ("%P%X: addsym %s: %E\n", name);
}
void
-pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info)
+pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo)
{
+ int i, j;
def_file_module *module;
+ def_file_import *imp;
pe_dll_id_target (bfd_get_target (output_bfd));
if (!pe_def_file)
return;
+ imp = pe_def_file->imports;
+
+ pe_create_undef_table ();
+
for (module = pe_def_file->modules; module; module = module->next)
{
- int i, do_this_dll;
+ int do_this_dll = 0;
+
+ for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++)
+ ;
+ if (i >= pe_def_file->num_imports)
+ continue;
dll_filename = module->name;
dll_symname = xstrdup (module->name);
- for (i = 0; dll_symname[i]; i++)
- if (!ISALNUM (dll_symname[i]))
- dll_symname[i] = '_';
+ for (j = 0; dll_symname[j]; j++)
+ if (!ISALNUM (dll_symname[j]))
+ dll_symname[j] = '_';
- do_this_dll = 0;
+ for (; i < pe_def_file->num_imports && imp[i].module == module; i++)
+ {
+ def_file_export exp;
+ struct bfd_link_hash_entry *blhe;
+ int lead_at = (*imp[i].internal_name == '@');
+ /* See if we need this import. */
+ size_t len = strlen (imp[i].internal_name);
+ char *name = xmalloc (len + 2 + 6);
+ bfd_boolean include_jmp_stub = FALSE;
+ bfd_boolean is_cdecl = FALSE;
+ bfd_boolean is_undef = FALSE;
+
+ if (!lead_at && strchr (imp[i].internal_name, '@') == NULL)
+ is_cdecl = TRUE;
+
+ if (lead_at)
+ sprintf (name, "%s", imp[i].internal_name);
+ else
+ sprintf (name, "%s%s",U (""), imp[i].internal_name);
- for (i = 0; i < pe_def_file->num_imports; i++)
- if (pe_def_file->imports[i].module == module)
- {
- def_file_export exp;
- struct bfd_link_hash_entry *blhe;
- int lead_at = (*pe_def_file->imports[i].internal_name == '@');
- /* See if we need this import. */
- size_t len = strlen (pe_def_file->imports[i].internal_name);
- char *name = xmalloc (len + 2 + 6);
- bfd_boolean include_jmp_stub = FALSE;
-
- if (lead_at)
- sprintf (name, "%s",
- pe_def_file->imports[i].internal_name);
- else
- sprintf (name, "%s%s",U (""),
- pe_def_file->imports[i].internal_name);
-
- blhe = bfd_link_hash_lookup (link_info->hash, name,
- FALSE, FALSE, FALSE);
-
- /* Include the jump stub for <sym> only if the <sym>
- is undefined. */
- if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))
- {
- if (lead_at)
- sprintf (name, "%s%s", "__imp_",
- pe_def_file->imports[i].internal_name);
- else
- sprintf (name, "%s%s%s", "__imp_", U (""),
- pe_def_file->imports[i].internal_name);
-
- blhe = bfd_link_hash_lookup (link_info->hash, name,
- FALSE, FALSE, FALSE);
- }
- else
+ blhe = bfd_link_hash_lookup (linfo->hash, name,
+ FALSE, FALSE, FALSE);
+
+ /* Include the jump stub for <sym> only if the <sym>
+ is undefined. */
+ if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))
+ {
+ if (lead_at)
+ sprintf (name, "%s%s", "__imp_", imp[i].internal_name);
+ else
+ sprintf (name, "%s%s%s", "__imp_", U (""),
+ imp[i].internal_name);
+
+ blhe = bfd_link_hash_lookup (linfo->hash, name,
+ FALSE, FALSE, FALSE);
+ if (blhe)
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+ }
+ else
+ {
include_jmp_stub = TRUE;
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+ }
- free (name);
+ if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)))
+ {
+ sprintf (name, "%s%s",U (""), imp[i].internal_name);
+ blhe = pe_find_cdecl_alias_match (linfo, name);
+ include_jmp_stub = TRUE;
+ if (blhe)
+ is_undef = (blhe->type == bfd_link_hash_undefined);
+ }
- if (blhe && blhe->type == bfd_link_hash_undefined)
- {
- bfd *one;
- /* We do. */
- if (!do_this_dll)
- {
- bfd *ar_head = make_head (output_bfd);
- add_bfd_to_link (ar_head, ar_head->filename, link_info);
- do_this_dll = 1;
- }
- exp.internal_name = pe_def_file->imports[i].internal_name;
- exp.name = pe_def_file->imports[i].name;
- exp.ordinal = pe_def_file->imports[i].ordinal;
- exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0;
- exp.flag_private = 0;
- exp.flag_constant = 0;
- exp.flag_data = pe_def_file->imports[i].data;
- exp.flag_noname = exp.name ? 0 : 1;
- one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub);
- add_bfd_to_link (one, one->filename, link_info);
- }
- }
+ free (name);
+
+ if (is_undef)
+ {
+ bfd *one;
+ /* We do. */
+ if (!do_this_dll)
+ {
+ bfd *ar_head = make_head (output_bfd);
+ add_bfd_to_link (ar_head, ar_head->filename, linfo);
+ do_this_dll = 1;
+ }
+ exp.internal_name = imp[i].internal_name;
+ exp.name = imp[i].name;
+ exp.its_name = imp[i].its_name;
+ exp.ordinal = imp[i].ordinal;
+ exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0;
+ exp.flag_private = 0;
+ exp.flag_constant = 0;
+ exp.flag_data = imp[i].data;
+ exp.flag_noname = exp.name ? 0 : 1;
+ one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub);
+ add_bfd_to_link (one, one->filename, linfo);
+ }
+ }
if (do_this_dll)
{
bfd *ar_tail = make_tail (output_bfd);
- add_bfd_to_link (ar_tail, ar_tail->filename, link_info);
+ add_bfd_to_link (ar_tail, ar_tail->filename, linfo);
}
free (dll_symname);
}
+
+ while (undef_count)
+ {
+ --undef_count;
+ free (udef_table[undef_count].key);
+ }
+ free (udef_table);
}
/* We were handed a *.DLL file. Parse it and turn it into a set of
bfd_vma exp_funcbase;
unsigned char *expdata;
char *erva;
- bfd_vma name_rvas, ordinals, nexp, ordbase;
- const char *dll_name;
+ bfd_vma name_rvas, nexp;
+ const char *dllname;
/* Initialization with start > end guarantees that is_data
will not be set by mistake, and avoids compiler warning. */
bfd_vma data_start = 1;
dll = bfd_openr (filename, pe_details->target_name);
if (!dll)
{
- einfo ("%Xopen %s: %E\n", filename);
+ einfo ("%P%X: open %s: %E\n", filename);
return FALSE;
}
/* PEI dlls seem to be bfd_objects. */
if (!bfd_check_format (dll, bfd_object))
{
- einfo ("%X%s: this doesn't appear to be a DLL\n", filename);
+ einfo ("%P%X: %s: this doesn't appear to be a DLL\n", filename);
return FALSE;
}
- /* Get pe_header, optional header and numbers of export entries. */
+ /* Get pe_header, optional header and numbers of directory entries. */
pe_header_offset = pe_get32 (dll, 0x3c);
opthdr_ofs = pe_header_offset + 4 + 20;
#ifdef pe_use_x86_64
num_entries = pe_get32 (dll, opthdr_ofs + 92);
#endif
- if (num_entries < 1) /* No exports. */
+ /* No import or export directory entry. */
+ if (num_entries < 1)
return FALSE;
#ifdef pe_use_x86_64
export_rva = pe_get32 (dll, opthdr_ofs + 96);
export_size = pe_get32 (dll, opthdr_ofs + 100);
#endif
-
+
+ /* No export table - nothing to export. */
+ if (export_size == 0)
+ return FALSE;
+
nsections = pe_get16 (dll, pe_header_offset + 4 + 2);
secptr = (pe_header_offset + 4 + 20 +
pe_get16 (dll, pe_header_offset + 4 + 16));
nexp = pe_as32 (expdata + 24);
name_rvas = pe_as32 (expdata + 32);
- ordinals = pe_as32 (expdata + 36);
- ordbase = pe_as32 (expdata + 16);
exp_funcbase = pe_as32 (expdata + 28);
/* Use internal dll name instead of filename
to enable symbolic dll linking. */
- dll_name = erva + pe_as32 (expdata + 12);
+ dllname = erva + pe_as32 (expdata + 12);
/* Check to see if the dll has already been added to
the definition list and if so return without error.
This avoids multiple symbol definitions. */
- if (def_get_module (pe_def_file, dll_name))
+ if (def_get_module (pe_def_file, dllname))
{
if (pe_dll_extra_pe_debug)
- printf ("%s is already loaded\n", dll_name);
+ printf ("%s is already loaded\n", dllname);
return TRUE;
}
/* Skip unwanted symbols, which are
exported in buggy auto-import releases. */
- if (! CONST_STRNEQ (erva + name_rva, "_nm_"))
+ if (! CONST_STRNEQ (erva + name_rva, "__nm_"))
{
+ int is_dup = 0;
/* is_data is true if the address is in the data, rdata or bss
segment. */
is_data =
|| (func_rva >= bss_start && func_rva < bss_end);
imp = def_file_add_import (pe_def_file, erva + name_rva,
- dll_name, i, 0);
+ dllname, i, NULL, NULL, &is_dup);
/* Mark symbol type. */
- imp->data = is_data;
+ if (!is_dup)
+ imp->data = is_data;
if (pe_dll_extra_pe_debug)
printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n",
- __FUNCTION__, dll_name, erva + name_rva,
+ __FUNCTION__, dllname, erva + name_rva,
(unsigned long) func_rva, is_data ? "(data)" : "");
}
}
return TRUE;
}
+void
+pe_output_file_set_long_section_names (bfd *abfd)
+{
+ if (pe_use_coff_long_section_names < 0)
+ return;
+ if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names))
+ einfo (_("%P%X: Error: can't use long section names on this arch\n"));
+}
+
/* These are the main functions, called from the emulation. The first
is called after the bfds are read, so we can guess at how much space
we need. The second is called after everything is placed, so we
pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info)
{
pe_dll_id_target (bfd_get_target (abfd));
- process_def_file (abfd, info);
+ pe_output_file_set_long_section_names (abfd);
+ process_def_file_and_drectve (abfd, info);
- if (pe_def_file->num_exports == 0 && !info->shared)
+ if (pe_def_file->num_exports == 0 && !bfd_link_pic (info))
return;
generate_edata (abfd, info);
build_filler_bfd (1);
+ pe_output_file_set_long_section_names (filler_bfd);
}
void
pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
pe_dll_id_target (bfd_get_target (abfd));
+ pe_output_file_set_long_section_names (abfd);
build_filler_bfd (0);
+ pe_output_file_set_long_section_names (filler_bfd);
}
void
pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info)
{
pe_dll_id_target (bfd_get_target (abfd));
+ pe_output_file_set_long_section_names (abfd);
image_base = pe_data (abfd)->pe_opthdr.ImageBase;
generate_reloc (abfd, info);
ldemul_after_allocation ();
/* Do the assignments again. */
- lang_do_assignments ();
+ lang_do_assignments (lang_final_phase_enum);
}
fill_edata (abfd, info);
- if (info->shared && !info->pie)
+ if (bfd_link_dll (info))
pe_data (abfd)->dll = 1;
edata_s->contents = edata_d;
pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info)
{
pe_dll_id_target (bfd_get_target (abfd));
+ pe_output_file_set_long_section_names (abfd);
image_base = pe_data (abfd)->pe_opthdr.ImageBase;
generate_reloc (abfd, info);
ldemul_after_allocation ();
/* Do the assignments again. */
- lang_do_assignments ();
+ lang_do_assignments (lang_final_phase_enum);
}
reloc_s->contents = reloc_d;
}