/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
- Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
+ 2002, 2003 Free Software Foundation, Inc.
Original code by
Center for Software Science
University of Utah
Largely rewritten by Alan Modra <alan@linuxcare.com.au>
-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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libhppa.h"
#include "elf32-hppa.h"
#define ARCH_SIZE 32
-#include "elf-hppa.h"
#include "elf32-hppa.h"
+#include "elf-hppa.h"
+/* In order to gain some understanding of code in this file without
+ knowing all the intricate details of the linker, note the
+ following:
+
+ Functions named elf32_hppa_* are called by external routines, other
+ functions are only called locally. elf32_hppa_* functions appear
+ in this file more or less in the order in which they are called
+ from external routines. eg. elf32_hppa_check_relocs is called
+ early in the link process, elf32_hppa_finish_dynamic_sections is
+ one of the last functions. */
/* We use two hash tables to hold information for linking PA ELF objects.
PIC long branch stub:
: b,l .+8,%r1
- : addil L'X - ($PIC_pcrel$0 - 4),%r1
- : be,n R'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
+ : addil LR'X - ($PIC_pcrel$0 - 4),%r1
+ : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
Import stub to call shared library routine from normal object file
(single sub-space version)
- : addil L'lt_ptr+ltoff,%dp ; get procedure entry point
- : ldw R'lt_ptr+ltoff(%r1),%r21
- : bv %r0(%r21)
- : ldw R'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
+ : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
+ : ldw RR'lt_ptr+ltoff(%r1),%r21
+ : bv %r0(%r21)
+ : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
Import stub to call shared library routine from shared library
(single sub-space version)
- : addil L'ltoff,%r19 ; get procedure entry point
- : ldw R'ltoff(%r1),%r21
- : bv %r0(%r21)
- : ldw R'ltoff+4(%r1),%r19 ; get new dlt value.
+ : addil LR'ltoff,%r19 ; get procedure entry point
+ : ldw RR'ltoff(%r1),%r21
+ : bv %r0(%r21)
+ : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
Import stub to call shared library routine from normal object file
(multiple sub-space support)
- : addil L'lt_ptr+ltoff,%dp ; get procedure entry point
- : ldw R'lt_ptr+ltoff(%r1),%r21
- : ldw R'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
+ : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
+ : ldw RR'lt_ptr+ltoff(%r1),%r21
+ : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
: ldsid (%r21),%r1
: mtsp %r1,%sr0
: be 0(%sr0,%r21) ; branch to target
Import stub to call shared library routine from shared library
(multiple sub-space support)
- : addil L'ltoff,%r19 ; get procedure entry point
- : ldw R'ltoff(%r1),%r21
- : ldw R'ltoff+4(%r1),%r19 ; get new dlt value.
+ : addil LR'ltoff,%r19 ; get procedure entry point
+ : ldw RR'ltoff(%r1),%r21
+ : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
: ldsid (%r21),%r1
: mtsp %r1,%sr0
: be 0(%sr0,%r21) ; branch to target
: ldw -24(%sp),%rp ; restore the original rp
: ldsid (%rp),%r1
: mtsp %r1,%sr0
- : be,n 0(%sr0,%rp) ; inter-space return
-*/
+ : be,n 0(%sr0,%rp) ; inter-space return. */
#define PLT_ENTRY_SIZE 8
#define GOT_ENTRY_SIZE 4
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
+static const bfd_byte plt_stub[] =
+{
+ 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
+ 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
+ 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
+#define PLT_STUB_ENTRY (3*4)
+ 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
+ 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
+ 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
+ 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
+};
+
/* Section name for stubs is the associated section name plus this
string. */
#define STUB_SUFFIX ".stub"
-/* Setting the following non-zero makes all long branch stubs
- generated during a shared link of the PIC variety. This saves on
- relocs, but costs one extra instruction per stub. */
-#ifndef LONG_BRANCH_PIC_IN_SHLIB
-#define LONG_BRANCH_PIC_IN_SHLIB 1
-#endif
-
-/* We don't need to copy any PC- or GP-relative dynamic relocs into a
- shared object's dynamic section. */
-#ifndef RELATIVE_DYNAMIC_RELOCS
-#define RELATIVE_DYNAMIC_RELOCS 0
+/* We don't need to copy certain PC- or GP-relative dynamic relocs
+ into a shared object's dynamic section. All the relocs of the
+ limited class we are interested in, are absolute. */
+#ifndef RELATIVE_DYNRELOCS
+#define RELATIVE_DYNRELOCS 0
+#define IS_ABSOLUTE_RELOC(r_type) 1
#endif
-
enum elf32_hppa_stub_type {
hppa_stub_long_branch,
hppa_stub_long_branch_shared,
hppa_stub_none
};
-
struct elf32_hppa_stub_hash_entry {
/* Base hash table entry structure. */
/* The stub section. */
asection *stub_sec;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- /* It's associated reloc section. */
- asection *reloc_sec;
-#endif
-
/* Offset within stub_sec of the beginning of this stub. */
bfd_vma stub_offset;
/* The symbol table entry, if any, that this was derived from. */
struct elf32_hppa_link_hash_entry *h;
- /* Where this stub is being called from. */
- asection *input_section;
+ /* Where this stub is being called from, or, in the case of combined
+ stub sections, the first input section in the group. */
+ asection *id_sec;
};
-
struct elf32_hppa_link_hash_entry {
struct elf_link_hash_entry elf;
symbol. */
struct elf32_hppa_stub_hash_entry *stub_cache;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- /* Used to track whether we have allocated space for a long branch
- stub relocation for this symbol in the given section. */
- asection *stub_reloc_sec;
-#endif
-
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
/* Used to count relocations for delayed sizing of relocation
sections. */
struct elf32_hppa_dyn_reloc_entry {
/* Next relocation in the chain. */
struct elf32_hppa_dyn_reloc_entry *next;
- /* The section in dynobj. */
- asection *section;
+ /* The input section of the reloc. */
+ asection *sec;
/* Number of relocs copied in this section. */
bfd_size_type count;
- } *reloc_entries;
+
+#if RELATIVE_DYNRELOCS
+ /* Number of relative relocs copied for the input section. */
+ bfd_size_type relative_count;
#endif
+ } *dyn_relocs;
- /* Set during a static link if we detect a function is PIC. */
- boolean pic_call;
-};
+ /* Set if the only reason we need a .plt entry is for a non-PIC to
+ PIC function call. */
+ unsigned int pic_call:1;
+ /* Set if this symbol is used by a plabel reloc. */
+ unsigned int plabel:1;
+};
struct elf32_hppa_link_hash_table {
/* The main hash table. */
- struct elf_link_hash_table root;
+ struct elf_link_hash_table elf;
/* The stub hash table. */
struct bfd_hash_table stub_hash_table;
/* Linker stub bfd. */
bfd *stub_bfd;
- /* Whether we support multiple sub-spaces for shared libs. */
- boolean multi_subspace;
-
/* Linker call-backs. */
asection * (*add_stub_section) PARAMS ((const char *, asection *));
void (*layout_sections_again) PARAMS ((void));
- /* Arrays to keep track of which stub sections have been created. */
- asection **stub_section_created;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- asection **reloc_section_created;
-#endif
- int first_init_sec;
- int first_fini_sec;
-
- /* Current offsets in the stub sections. */
- bfd_vma *offset;
+ /* Array to keep track of which stub sections have been created, and
+ information on stub grouping. */
+ struct map_stub {
+ /* This is the section to which stubs in the group will be
+ attached. */
+ asection *link_sec;
+ /* The stub section. */
+ asection *stub_sec;
+ } *stub_group;
+
+ /* Assorted information used by elf32_hppa_size_stubs. */
+ unsigned int bfd_count;
+ int top_index;
+ asection **input_list;
+ Elf_Internal_Sym **all_local_syms;
/* Short-cuts to get to dynamic linker sections. */
asection *sgot;
asection *srelplt;
asection *sdynbss;
asection *srelbss;
-};
+ /* Used during a final link to store the base of the text and data
+ segments so that we can perform SEGREL relocations. */
+ bfd_vma text_segment_base;
+ bfd_vma data_segment_base;
-/* Functions named elf32_hppa_* are called by external routines, other
- functions are only called locally. elf32_hppa_* functions appear
- in this file more or less in the order in which they are called
- from external routines. eg. elf32_hppa_check_relocs is called
- early in the link process, elf32_hppa_finish_dynamic_sections is
- one of the last functions. */
+ /* Whether we support multiple sub-spaces for shared libs. */
+ unsigned int multi_subspace:1;
+
+ /* Flags set when various size branches are detected. Used to
+ select suitable defaults for the stub group size. */
+ unsigned int has_12bit_branch:1;
+ unsigned int has_17bit_branch:1;
+ unsigned int has_22bit_branch:1;
+
+ /* Set if we need a .plt stub to support lazy dynamic linking. */
+ unsigned int need_plt_stub:1;
+ /* Small local sym to section mapping cache. */
+ struct sym_sec_cache sym_sec;
+};
/* Various hash macros and functions. */
#define hppa_link_hash_table(p) \
static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
PARAMS ((bfd *));
+static void elf32_hppa_link_hash_table_free
+ PARAMS ((struct bfd_link_hash_table *));
/* Stub handling functions. */
static char *hppa_stub_name
static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry
PARAMS ((const asection *, const asection *,
struct elf32_hppa_link_hash_entry *,
- const Elf_Internal_Rela *, struct bfd_link_info *));
+ const Elf_Internal_Rela *,
+ struct elf32_hppa_link_hash_table *));
static struct elf32_hppa_stub_hash_entry *hppa_add_stub
- PARAMS ((const char *, asection *, unsigned int,
- struct bfd_link_info *));
+ PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *));
static enum elf32_hppa_stub_type hppa_type_of_stub
PARAMS ((asection *, const Elf_Internal_Rela *,
struct elf32_hppa_link_hash_entry *, bfd_vma));
-static boolean hppa_build_one_stub
+static bfd_boolean hppa_build_one_stub
PARAMS ((struct bfd_hash_entry *, PTR));
-static boolean hppa_size_one_stub
+static bfd_boolean hppa_size_one_stub
PARAMS ((struct bfd_hash_entry *, PTR));
-
/* BFD and elf backend functions. */
-static boolean elf32_hppa_object_p PARAMS ((bfd *));
+static bfd_boolean elf32_hppa_object_p PARAMS ((bfd *));
-static boolean elf32_hppa_add_symbol_hook
+static bfd_boolean elf32_hppa_add_symbol_hook
PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
const char **, flagword *, asection **, bfd_vma *));
-static boolean elf32_hppa_create_dynamic_sections
+static bfd_boolean elf32_hppa_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
-static boolean elf32_hppa_check_relocs
+static void elf32_hppa_copy_indirect_symbol
+ PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *,
+ struct elf_link_hash_entry *));
+
+static bfd_boolean elf32_hppa_check_relocs
PARAMS ((bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *));
static asection *elf32_hppa_gc_mark_hook
- PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
+ PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static boolean elf32_hppa_gc_sweep_hook
+static bfd_boolean elf32_hppa_gc_sweep_hook
PARAMS ((bfd *, struct bfd_link_info *,
asection *, const Elf_Internal_Rela *));
-static boolean elf32_hppa_adjust_dynamic_symbol
+static void elf32_hppa_hide_symbol
+ PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
+
+static bfd_boolean elf32_hppa_adjust_dynamic_symbol
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
-static boolean hppa_handle_PIC_calls
+static bfd_boolean mark_PIC_calls
PARAMS ((struct elf_link_hash_entry *, PTR));
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
-static boolean hppa_discard_copies
+static bfd_boolean allocate_plt_static
PARAMS ((struct elf_link_hash_entry *, PTR));
-#endif
-static boolean elf32_hppa_size_dynamic_sections
+static bfd_boolean allocate_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static bfd_boolean readonly_dynrelocs
+ PARAMS ((struct elf_link_hash_entry *, PTR));
+
+static bfd_boolean clobber_millicode_symbols
+ PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *));
+
+static bfd_boolean elf32_hppa_size_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void group_sections
+ PARAMS ((struct elf32_hppa_link_hash_table *, bfd_size_type, bfd_boolean));
+
+static int get_local_syms
+ PARAMS ((bfd *, bfd *, struct bfd_link_info *));
+
+static bfd_boolean elf32_hppa_final_link
PARAMS ((bfd *, struct bfd_link_info *));
+static void hppa_record_segment_addr
+ PARAMS ((bfd *, asection *, PTR));
+
static bfd_reloc_status_type final_link_relocate
PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *,
- bfd_vma, struct bfd_link_info *, asection *,
+ bfd_vma, struct elf32_hppa_link_hash_table *, asection *,
struct elf32_hppa_link_hash_entry *));
-static boolean elf32_hppa_relocate_section
+static bfd_boolean elf32_hppa_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static boolean elf32_hppa_finish_dynamic_symbol
+static bfd_boolean elf32_hppa_finish_dynamic_symbol
PARAMS ((bfd *, struct bfd_link_info *,
struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static boolean elf32_hppa_finish_dynamic_sections
+static enum elf_reloc_type_class elf32_hppa_reloc_type_class
+ PARAMS ((const Elf_Internal_Rela *));
+
+static bfd_boolean elf32_hppa_finish_dynamic_sections
+ PARAMS ((bfd *, struct bfd_link_info *));
+
+static void elf32_hppa_post_process_headers
PARAMS ((bfd *, struct bfd_link_info *));
static int elf32_hppa_elf_get_symbol_type
PARAMS ((Elf_Internal_Sym *, int));
-
/* Assorted hash table functions. */
/* Initialize an entry in the stub hash table. */
struct bfd_hash_table *table;
const char *string;
{
- struct elf32_hppa_stub_hash_entry *ret;
-
- ret = (struct elf32_hppa_stub_hash_entry *) entry;
-
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == NULL)
+ if (entry == NULL)
{
- ret = ((struct elf32_hppa_stub_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf32_hppa_stub_hash_entry)));
- if (ret == NULL)
- return NULL;
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry));
+ if (entry == NULL)
+ return entry;
}
/* Call the allocation method of the superclass. */
- ret = ((struct elf32_hppa_stub_hash_entry *)
- bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
-
- if (ret)
+ entry = bfd_hash_newfunc (entry, table, string);
+ if (entry != NULL)
{
+ struct elf32_hppa_stub_hash_entry *eh;
+
/* Initialize the local fields. */
- ret->stub_sec = NULL;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- ret->reloc_sec = NULL;
-#endif
- ret->stub_offset = 0;
- ret->target_value = 0;
- ret->target_section = NULL;
- ret->stub_type = hppa_stub_long_branch;
- ret->h = NULL;
- ret->input_section = NULL;
+ eh = (struct elf32_hppa_stub_hash_entry *) entry;
+ eh->stub_sec = NULL;
+ eh->stub_offset = 0;
+ eh->target_value = 0;
+ eh->target_section = NULL;
+ eh->stub_type = hppa_stub_long_branch;
+ eh->h = NULL;
+ eh->id_sec = NULL;
}
- return (struct bfd_hash_entry *) ret;
+ return entry;
}
-
/* Initialize an entry in the link hash table. */
static struct bfd_hash_entry *
struct bfd_hash_table *table;
const char *string;
{
- struct elf32_hppa_link_hash_entry *ret;
-
- ret = (struct elf32_hppa_link_hash_entry *) entry;
-
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == NULL)
+ if (entry == NULL)
{
- ret = ((struct elf32_hppa_link_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf32_hppa_link_hash_entry)));
- if (ret == NULL)
- return NULL;
+ entry = bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_link_hash_entry));
+ if (entry == NULL)
+ return entry;
}
/* Call the allocation method of the superclass. */
- ret = ((struct elf32_hppa_link_hash_entry *)
- _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
-
- if (ret)
+ entry = _bfd_elf_link_hash_newfunc (entry, table, string);
+ if (entry != NULL)
{
+ struct elf32_hppa_link_hash_entry *eh;
+
/* Initialize the local fields. */
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- ret->stub_reloc_sec = NULL;
-#endif
- ret->stub_cache = NULL;
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
- ret->reloc_entries = NULL;
-#endif
- ret->pic_call = 0;
+ eh = (struct elf32_hppa_link_hash_entry *) entry;
+ eh->stub_cache = NULL;
+ eh->dyn_relocs = NULL;
+ eh->pic_call = 0;
+ eh->plabel = 0;
}
- return (struct bfd_hash_entry *) ret;
+ return entry;
}
-
/* Create the derived linker hash table. The PA ELF port uses the derived
hash table to keep information specific to the PA ELF linker (without
using static variables). */
bfd *abfd;
{
struct elf32_hppa_link_hash_table *ret;
+ bfd_size_type amt = sizeof (*ret);
- ret = ((struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, sizeof (*ret)));
+ ret = (struct elf32_hppa_link_hash_table *) bfd_malloc (amt);
if (ret == NULL)
return NULL;
- if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, hppa_link_hash_newfunc))
+ if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc))
{
- bfd_release (abfd, ret);
+ free (ret);
return NULL;
}
return NULL;
ret->stub_bfd = NULL;
- ret->multi_subspace = 0;
ret->add_stub_section = NULL;
ret->layout_sections_again = NULL;
- ret->stub_section_created = NULL;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- ret->reloc_section_created = NULL;
-#endif
- ret->first_init_sec = 0;
- ret->first_fini_sec = 0;
- ret->offset = NULL;
+ ret->stub_group = NULL;
ret->sgot = NULL;
ret->srelgot = NULL;
ret->splt = NULL;
ret->srelplt = NULL;
ret->sdynbss = NULL;
ret->srelbss = NULL;
+ ret->text_segment_base = (bfd_vma) -1;
+ ret->data_segment_base = (bfd_vma) -1;
+ ret->multi_subspace = 0;
+ ret->has_12bit_branch = 0;
+ ret->has_17bit_branch = 0;
+ ret->has_22bit_branch = 0;
+ ret->need_plt_stub = 0;
+ ret->sym_sec.abfd = NULL;
- return &ret->root.root;
+ return &ret->elf.root;
}
+/* Free the derived linker hash table. */
+
+static void
+elf32_hppa_link_hash_table_free (hash)
+ struct bfd_link_hash_table *hash;
+{
+ struct elf32_hppa_link_hash_table *ret
+ = (struct elf32_hppa_link_hash_table *) hash;
+
+ bfd_hash_table_free (&ret->stub_hash_table);
+ _bfd_generic_link_hash_table_free (hash);
+}
/* Build a name for an entry in the stub hash table. */
const Elf_Internal_Rela *rel;
{
char *stub_name;
- unsigned int len;
+ bfd_size_type len;
if (hash)
{
return stub_name;
}
-
/* Look up an entry in the stub hash. Stub entries are cached because
creating the stub name takes a bit of time. */
static struct elf32_hppa_stub_hash_entry *
-hppa_get_stub_entry (input_section, sym_sec, hash, rel, info)
+hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab)
const asection *input_section;
const asection *sym_sec;
struct elf32_hppa_link_hash_entry *hash;
const Elf_Internal_Rela *rel;
- struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
{
struct elf32_hppa_stub_hash_entry *stub_entry;
+ const asection *id_sec;
+
+ /* If this input section is part of a group of sections sharing one
+ stub section, then use the id of the first section in the group.
+ Stub names need to include a section id, as there may well be
+ more than one stub used to reach say, printf, and we need to
+ distinguish between them. */
+ id_sec = htab->stub_group[input_section->id].link_sec;
if (hash != NULL && hash->stub_cache != NULL
&& hash->stub_cache->h == hash
- && hash->stub_cache->input_section == input_section)
+ && hash->stub_cache->id_sec == id_sec)
{
stub_entry = hash->stub_cache;
}
else
{
- struct bfd_hash_table *stub_hash_table;
char *stub_name;
- stub_name = hppa_stub_name (input_section, sym_sec, hash, rel);
+ stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel);
if (stub_name == NULL)
return NULL;
- stub_hash_table = &hppa_link_hash_table (info)->stub_hash_table;
-
- stub_entry = hppa_stub_hash_lookup (stub_hash_table, stub_name,
- false, false);
- if (stub_entry == NULL)
- {
- if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak)
- (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"),
- bfd_get_filename (input_section->owner),
- input_section->name,
- (long) rel->r_offset,
- stub_name);
- }
- else
- {
- if (hash != NULL)
- hash->stub_cache = stub_entry;
- }
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
+ stub_name, FALSE, FALSE);
+ if (hash != NULL)
+ hash->stub_cache = stub_entry;
free (stub_name);
}
return stub_entry;
}
-
/* Add a new stub entry to the stub hash. Not all fields of the new
stub entry are initialised. */
static struct elf32_hppa_stub_hash_entry *
-hppa_add_stub (stub_name, section, sec_count, info)
+hppa_add_stub (stub_name, section, htab)
const char *stub_name;
asection *section;
- unsigned int sec_count;
- struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
{
+ asection *link_sec;
asection *stub_sec;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- asection *reloc_sec;
-#endif
struct elf32_hppa_stub_hash_entry *stub_entry;
- struct elf32_hppa_link_hash_table *hplink;
- hplink = hppa_link_hash_table (info);
- stub_sec = hplink->stub_section_created[sec_count];
+ link_sec = htab->stub_group[section->id].link_sec;
+ stub_sec = htab->stub_group[section->id].stub_sec;
if (stub_sec == NULL)
{
- int special_sec = 0;
-
- /* We only want one stub for .init and .fini because glibc
- splits the _init and _fini functions into two parts. We
- don't want to put a stub in the middle of a function.
- It would be better to merge all the stub sections for an
- output section if the output section + stubs is small enough.
- This would fix the .init and .fini case and also allow stubs
- to be merged. It's more linker work though. */
- if (strncmp (section->name, ".init", 5) == 0)
- {
- stub_sec = hplink->stub_section_created[hplink->first_init_sec];
- special_sec = 1;
- }
- else if (strncmp (section->name, ".fini", 5) == 0)
- {
- stub_sec = hplink->stub_section_created[hplink->first_fini_sec];
- special_sec = 2;
- }
+ stub_sec = htab->stub_group[link_sec->id].stub_sec;
if (stub_sec == NULL)
{
- int len;
+ size_t namelen;
+ bfd_size_type len;
char *s_name;
- len = strlen (section->name) + sizeof (STUB_SUFFIX);
- s_name = bfd_alloc (hplink->stub_bfd, len);
+ namelen = strlen (link_sec->name);
+ len = namelen + sizeof (STUB_SUFFIX);
+ s_name = bfd_alloc (htab->stub_bfd, len);
if (s_name == NULL)
return NULL;
- strcpy (s_name, section->name);
- strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX);
- stub_sec = (*hplink->add_stub_section) (s_name, section);
+ memcpy (s_name, link_sec->name, namelen);
+ memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
+ stub_sec = (*htab->add_stub_section) (s_name, link_sec);
if (stub_sec == NULL)
return NULL;
-
- if (special_sec != 0)
- {
- if (special_sec == 1)
- hplink->first_init_sec = sec_count;
- else
- hplink->first_fini_sec = sec_count;
- }
+ htab->stub_group[link_sec->id].stub_sec = stub_sec;
}
- hplink->stub_section_created[sec_count] = stub_sec;
- }
-
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- reloc_sec = hplink->reloc_section_created[sec_count];
- if (reloc_sec == NULL && info->shared)
- {
- char *name;
-
- name = bfd_malloc (sizeof ".rela" + strlen (stub_sec->name));
- if (name == NULL)
- return NULL;
- strcpy (name, ".rela");
- strcpy (name + sizeof ".rela" - 1, stub_sec->name);
- reloc_sec = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
- name);
- hplink->reloc_section_created[sec_count] = reloc_sec;
- free (name);
+ htab->stub_group[section->id].stub_sec = stub_sec;
}
-#endif
/* Enter this entry into the linker stub hash table. */
- stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, stub_name,
- true, false);
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name,
+ TRUE, FALSE);
if (stub_entry == NULL)
{
(*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
- bfd_get_filename (section->owner),
+ bfd_archive_filename (section->owner),
stub_name);
return NULL;
}
stub_entry->stub_sec = stub_sec;
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- stub_entry->reloc_sec = reloc_sec;
-#endif
stub_entry->stub_offset = 0;
- stub_entry->input_section = section;
+ stub_entry->id_sec = link_sec;
return stub_entry;
}
-
/* Determine the type of stub needed, if any, for a call. */
static enum elf32_hppa_stub_type
unsigned int r_type;
if (hash != NULL
- && (((hash->elf.root.type == bfd_link_hash_defined
- || hash->elf.root.type == bfd_link_hash_defweak)
- && hash->elf.root.u.def.section->output_section == NULL)
- || hash->elf.root.type == bfd_link_hash_undefweak
- || hash->elf.root.type == bfd_link_hash_undefined
- || hash->pic_call))
- {
- /* If output_section is NULL, then it's a symbol defined in a
- shared library. We will need an import stub. Decide between
- hppa_stub_import and hppa_stub_import_shared later.
- For shared links we need stubs for undefined syms too; They
- will presumably be resolved by the dynamic linker. */
+ && hash->elf.plt.offset != (bfd_vma) -1
+ && (hash->elf.dynindx != -1 || hash->pic_call)
+ && !hash->plabel)
+ {
+ /* We need an import stub. Decide between hppa_stub_import
+ and hppa_stub_import_shared later. */
return hppa_stub_import;
}
{
max_branch_offset = (1 << (12-1)) << 2;
}
- else /* R_PARISC_PCREL22F */
+ else /* R_PARISC_PCREL22F. */
{
max_branch_offset = (1 << (22-1)) << 2;
}
if (branch_offset + max_branch_offset >= 2*max_branch_offset)
- {
-#if 0
- if (hash != NULL
- && hash->elf.dynindx != -1
- && hash->elf.plt.offset != (bfd_vma) -1)
- {
- /* If we are doing a shared link and find we need a long
- branch stub, then go via the .plt if possible. */
- return hppa_stub_import;
- }
- else
-#endif
- return hppa_stub_long_branch;
- }
+ return hppa_stub_long_branch;
+
return hppa_stub_none;
}
-
/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
IN_ARG contains the link info pointer. */
#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
-#define ADDIL_R1 0x28200000 /* addil L'XXX,%r1,%r1 */
+#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
-#define ADDIL_DP 0x2b600000 /* addil L'XXX,%dp,%r1 */
-#define LDW_R1_R21 0x48350000 /* ldw R'XXX(%sr0,%r1),%r21 */
+#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
+#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
-#define LDW_R1_R19 0x48330000 /* ldw R'XXX(%sr0,%r1),%r19 */
+#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
-#define ADDIL_R19 0x2a600000 /* addil L'XXX,%r19,%r1 */
-#define LDW_R1_DP 0x483b0000 /* ldw R'XXX(%sr0,%r1),%dp */
+#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
+#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
+#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
#define NOP 0x08000240 /* nop */
#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
#define LDW_R1_DLT LDW_R1_DP
#endif
-static boolean
+static bfd_boolean
hppa_build_one_stub (gen_entry, in_arg)
struct bfd_hash_entry *gen_entry;
PTR in_arg;
{
struct elf32_hppa_stub_hash_entry *stub_entry;
struct bfd_link_info *info;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
asection *stub_sec;
bfd *stub_bfd;
bfd_byte *loc;
bfd_vma sym_value;
- unsigned int insn;
+ bfd_vma insn;
+ bfd_vma off;
+ int val;
int size;
/* Massage our args to the form they really have. */
stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
info = (struct bfd_link_info *) in_arg;
- hplink = hppa_link_hash_table (info);
+ htab = hppa_link_hash_table (info);
stub_sec = stub_entry->stub_sec;
/* Make a note of the offset within the stubs for this entry. */
- stub_entry->stub_offset = hplink->offset[stub_sec->index];
+ stub_entry->stub_offset = stub_sec->_raw_size;
loc = stub_sec->contents + stub_entry->stub_offset;
stub_bfd = stub_sec->owner;
+ stub_entry->target_section->output_offset
+ stub_entry->target_section->output_section->vma);
- insn = hppa_rebuild_insn ((int) LDIL_R1,
- hppa_field_adjust (sym_value, 0, e_lrsel),
- 21);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel);
+ insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
bfd_put_32 (stub_bfd, insn, loc);
- insn = hppa_rebuild_insn ((int) BE_SR4_R1,
- hppa_field_adjust (sym_value, 0, e_rrsel) >> 2,
- 17);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2;
+ insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
bfd_put_32 (stub_bfd, insn, loc + 4);
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- if (info->shared)
- {
- /* Output a dynamic relocation for this stub. We only
- output one PCREL21L reloc per stub, trusting that the
- dynamic linker will also fix the implied PCREL17R for the
- second instruction. PCREL21L dynamic relocs had better
- never be emitted for some other purpose... */
- asection *srel;
- Elf_Internal_Rela outrel;
-
- if (stub_entry->h == NULL)
- {
- (*_bfd_error_handler)
- (_("%s(%s+0x%lx): cannot relocate %s, recompile with -ffunction-sections"),
- bfd_get_filename (stub_entry->target_section->owner),
- stub_sec->name,
- (long) stub_entry->stub_offset,
- stub_entry->root.string);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
-
- srel = stub_entry->reloc_sec;
- if (srel == NULL)
- {
- (*_bfd_error_handler)
- (_("Could not find relocation section for %s"),
- stub_sec->name);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
-
- outrel.r_offset = (stub_entry->stub_offset
- + stub_sec->output_offset
- + stub_sec->output_section->vma);
- outrel.r_info = ELF32_R_INFO (0, R_PARISC_PCREL21L);
- outrel.r_addend = sym_value;
- bfd_elf32_swap_reloca_out (stub_sec->output_section->owner,
- &outrel,
- ((Elf32_External_Rela *)
- srel->contents + srel->reloc_count));
- ++srel->reloc_count;
- }
-#endif
size = 8;
break;
+ stub_sec->output_offset
+ stub_sec->output_section->vma);
- bfd_put_32 (stub_bfd, (unsigned int) BL_R1, loc);
- insn = hppa_rebuild_insn ((int) ADDIL_R1,
- hppa_field_adjust (sym_value, -8, e_lsel),
- 21);
+ bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
+ insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
bfd_put_32 (stub_bfd, insn, loc + 4);
- insn = hppa_rebuild_insn ((int) BE_SR4_R1,
- hppa_field_adjust (sym_value, -8, e_rsel) >> 2,
- 17);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
+ insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
bfd_put_32 (stub_bfd, insn, loc + 8);
size = 12;
break;
case hppa_stub_import:
case hppa_stub_import_shared:
- sym_value = (stub_entry->h->elf.plt.offset
- + hplink->splt->output_offset
- + hplink->splt->output_section->vma
- - elf_gp (hplink->splt->output_section->owner));
+ off = stub_entry->h->elf.plt.offset;
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ off &= ~ (bfd_vma) 1;
+ sym_value = (off
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma
+ - elf_gp (htab->splt->output_section->owner));
insn = ADDIL_DP;
#if R19_STUBS
if (stub_entry->stub_type == hppa_stub_import_shared)
insn = ADDIL_R19;
#endif
- insn = hppa_rebuild_insn ((int) insn,
- hppa_field_adjust (sym_value, 0, e_lsel),
- 21);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel),
+ insn = hppa_rebuild_insn ((int) insn, val, 21);
bfd_put_32 (stub_bfd, insn, loc);
- insn = hppa_rebuild_insn ((int) LDW_R1_R21,
- hppa_field_adjust (sym_value, 0, e_rsel),
- 14);
+ /* It is critical to use lrsel/rrsel here because we are using
+ two different offsets (+0 and +4) from sym_value. If we use
+ lsel/rsel then with unfortunate sym_values we will round
+ sym_value+4 up to the next 2k block leading to a mis-match
+ between the lsel and rsel value. */
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
bfd_put_32 (stub_bfd, insn, loc + 4);
- if (hplink->multi_subspace)
+ if (htab->multi_subspace)
{
- insn = hppa_rebuild_insn ((int) LDW_R1_DLT,
- hppa_field_adjust (sym_value, 4, e_rsel),
- 14);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
bfd_put_32 (stub_bfd, insn, loc + 8);
- bfd_put_32 (stub_bfd, (unsigned int) LDSID_R21_R1, loc + 12);
- bfd_put_32 (stub_bfd, (unsigned int) MTSP_R1, loc + 16);
- bfd_put_32 (stub_bfd, (unsigned int) BE_SR0_R21, loc + 20);
- bfd_put_32 (stub_bfd, (unsigned int) STW_RP, loc + 24);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
+ bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
+ bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
size = 28;
}
else
{
- bfd_put_32 (stub_bfd, (unsigned int) BV_R0_R21, loc + 8);
- insn = hppa_rebuild_insn ((int) LDW_R1_DLT,
- hppa_field_adjust (sym_value, 4, e_rsel),
- 14);
+ bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
+ insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
bfd_put_32 (stub_bfd, insn, loc + 12);
size = 16;
struct elf32_hppa_link_hash_entry *eh;
bfd_vma value;
- dynobj = elf_hash_table (info)->dynobj;
+ dynobj = htab->elf.dynobj;
eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h;
- BFD_ASSERT (eh->elf.root.type == bfd_link_hash_defined
- || eh->elf.root.type == bfd_link_hash_defweak);
+ if (eh->elf.root.type != bfd_link_hash_defined
+ && eh->elf.root.type != bfd_link_hash_defweak)
+ abort ();
value = (eh->elf.root.u.def.value
+ eh->elf.root.u.def.section->output_offset
/* Fill in the entry in the procedure linkage table.
The format of a plt entry is
- <funcaddr> <__gp>. */
-
- bfd_put_32 (hplink->splt->owner, value,
- hplink->splt->contents + eh->elf.plt.offset);
- value = elf_gp (hplink->splt->output_section->owner);
- bfd_put_32 (hplink->splt->owner, value,
- hplink->splt->contents + eh->elf.plt.offset + 4);
+ <funcaddr>
+ <__gp>. */
+
+ bfd_put_32 (htab->splt->owner, value,
+ htab->splt->contents + off);
+ value = elf_gp (htab->splt->output_section->owner);
+ bfd_put_32 (htab->splt->owner, value,
+ htab->splt->contents + off + 4);
}
break;
+ stub_sec->output_offset
+ stub_sec->output_section->vma);
- if (sym_value - 8 + 0x40000 >= 0x80000)
+ if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
+ && (!htab->has_22bit_branch
+ || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
{
(*_bfd_error_handler)
(_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
- bfd_get_filename (stub_entry->target_section->owner),
+ bfd_archive_filename (stub_entry->target_section->owner),
stub_sec->name,
(long) stub_entry->stub_offset,
stub_entry->root.string);
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
- insn = hppa_rebuild_insn ((int) BL_RP,
- hppa_field_adjust (sym_value, -8, e_fsel) >> 2,
- 17);
+ val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
+ if (!htab->has_22bit_branch)
+ insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
+ else
+ insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
bfd_put_32 (stub_bfd, insn, loc);
- bfd_put_32 (stub_bfd, (unsigned int) NOP, loc + 4);
- bfd_put_32 (stub_bfd, (unsigned int) LDW_RP, loc + 8);
- bfd_put_32 (stub_bfd, (unsigned int) LDSID_RP_R1, loc + 12);
- bfd_put_32 (stub_bfd, (unsigned int) MTSP_R1, loc + 16);
- bfd_put_32 (stub_bfd, (unsigned int) BE_SR0_RP, loc + 20);
+ bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
+ bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
+ bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
+ bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
/* Point the function symbol at the stub. */
stub_entry->h->elf.root.u.def.section = stub_sec;
- stub_entry->h->elf.root.u.def.value = hplink->offset[stub_sec->index];
+ stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size;
size = 24;
break;
default:
BFD_FAIL ();
- return false;
+ return FALSE;
}
- hplink->offset[stub_sec->index] += size;
- return true;
+ stub_sec->_raw_size += size;
+ return TRUE;
}
#undef LDIL_R1
#undef LDSID_RP_R1
#undef BE_SR0_RP
-
/* As above, but don't actually build the stub. Just bump offset so
we know stub section sizes. */
-static boolean
+static bfd_boolean
hppa_size_one_stub (gen_entry, in_arg)
struct bfd_hash_entry *gen_entry;
PTR in_arg;
{
struct elf32_hppa_stub_hash_entry *stub_entry;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
int size;
/* Massage our args to the form they really have. */
stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
- hplink = (struct elf32_hppa_link_hash_table *) in_arg;
+ htab = (struct elf32_hppa_link_hash_table *) in_arg;
if (stub_entry->stub_type == hppa_stub_long_branch)
size = 8;
size = 12;
else if (stub_entry->stub_type == hppa_stub_export)
size = 24;
- else /* hppa_stub_import or hppa_stub_import_shared */
+ else /* hppa_stub_import or hppa_stub_import_shared. */
{
- if (hplink->multi_subspace)
+ if (htab->multi_subspace)
size = 28;
else
size = 16;
}
- hplink->offset[stub_entry->stub_sec->index] += size;
- return true;
+ stub_entry->stub_sec->_raw_size += size;
+ return TRUE;
}
-
/* Return nonzero if ABFD represents an HPPA ELF32 file.
Additionally we set the default architecture and machine. */
-static boolean
+static bfd_boolean
elf32_hppa_object_p (abfd)
bfd *abfd;
{
- unsigned int flags = elf_elfheader (abfd)->e_flags;
+ Elf_Internal_Ehdr * i_ehdrp;
+ unsigned int flags;
+
+ i_ehdrp = elf_elfheader (abfd);
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
+ {
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX)
+ return FALSE;
+ }
+ else
+ {
+ if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
+ return FALSE;
+ }
+ flags = i_ehdrp->e_flags;
switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
{
case EFA_PARISC_1_0:
case EFA_PARISC_2_0 | EF_PARISC_WIDE:
return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
}
- return true;
+ return TRUE;
}
-
/* Undo the generic ELF code's subtraction of section->vma from the
value of each external symbol. */
-static boolean
+static bfd_boolean
elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
bfd *abfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
bfd_vma *valp;
{
*valp += (*secp)->vma;
- return true;
+ return TRUE;
}
-
/* Create the .plt and .got sections, and set up our hash table
short-cuts to various dynamic sections. */
-static boolean
+static bfd_boolean
elf32_hppa_create_dynamic_sections (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
- flagword flags;
- asection *s;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
/* Don't try to create the .plt and .got twice. */
- hplink = hppa_link_hash_table (info);
- if (hplink->splt != NULL)
- return true;
+ htab = hppa_link_hash_table (info);
+ if (htab->splt != NULL)
+ return TRUE;
/* Call the generic code to do most of the work. */
if (! _bfd_elf_create_dynamic_sections (abfd, info))
- return false;
-
- /* Our .plt just contains pointers. I suppose we should be using
- .plt.got but .plt.got doesn't make too much sense without a .plt
- section. Set the flags to say the .plt isn't executable. */
- s = bfd_get_section_by_name (abfd, ".plt");
- flags = bfd_get_section_flags (abfd, s);
- if (! bfd_set_section_flags (abfd, s, flags & ~SEC_CODE))
- return false;
- hplink->splt = s;
- hplink->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
-
- hplink->sgot = bfd_get_section_by_name (abfd, ".got");
- hplink->srelgot = bfd_make_section (abfd, ".rela.got");
- if (hplink->srelgot == NULL
- || ! bfd_set_section_flags (abfd, hplink->srelgot,
+ return FALSE;
+
+ htab->splt = bfd_get_section_by_name (abfd, ".plt");
+ htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
+
+ htab->sgot = bfd_get_section_by_name (abfd, ".got");
+ htab->srelgot = bfd_make_section (abfd, ".rela.got");
+ if (htab->srelgot == NULL
+ || ! bfd_set_section_flags (abfd, htab->srelgot,
(SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
| SEC_LINKER_CREATED
| SEC_READONLY))
- || ! bfd_set_section_alignment (abfd, hplink->srelgot, 2))
- return false;
+ || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
+ return FALSE;
- hplink->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
- hplink->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
+ htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
+ htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
- return true;
+ return TRUE;
}
+/* Copy the extra info we tack onto an elf_link_hash_entry. */
+
+static void
+elf32_hppa_copy_indirect_symbol (bed, dir, ind)
+ struct elf_backend_data *bed;
+ struct elf_link_hash_entry *dir, *ind;
+{
+ struct elf32_hppa_link_hash_entry *edir, *eind;
+
+ edir = (struct elf32_hppa_link_hash_entry *) dir;
+ eind = (struct elf32_hppa_link_hash_entry *) ind;
+
+ if (eind->dyn_relocs != NULL)
+ {
+ if (edir->dyn_relocs != NULL)
+ {
+ struct elf32_hppa_dyn_reloc_entry **pp;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (ind->root.type == bfd_link_hash_indirect)
+ abort ();
+
+ /* Add reloc counts against the weak sym to the strong sym
+ list. Merge any entries against the same section. */
+ for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
+ {
+ struct elf32_hppa_dyn_reloc_entry *q;
+
+ for (q = edir->dyn_relocs; q != NULL; q = q->next)
+ if (q->sec == p->sec)
+ {
+#if RELATIVE_DYNRELOCS
+ q->relative_count += p->relative_count;
+#endif
+ q->count += p->count;
+ *pp = p->next;
+ break;
+ }
+ if (q == NULL)
+ pp = &p->next;
+ }
+ *pp = edir->dyn_relocs;
+ }
+
+ edir->dyn_relocs = eind->dyn_relocs;
+ eind->dyn_relocs = NULL;
+ }
+
+ _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
+}
/* Look through the relocs for a section during the first phase, and
- allocate space in the global offset table or procedure linkage
- table. At this point we haven't necessarily read all the input
- files. */
+ calculate needed space in the global offset table, procedure linkage
+ table, and dynamic reloc sections. At this point we haven't
+ necessarily read all the input files. */
-static boolean
+static bfd_boolean
elf32_hppa_check_relocs (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info;
asection *sec;
const Elf_Internal_Rela *relocs;
{
- bfd *dynobj;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
- bfd_signed_vma *local_got_refcounts;
const Elf_Internal_Rela *rel;
const Elf_Internal_Rela *rel_end;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
asection *sreloc;
asection *stubreloc;
if (info->relocateable)
- return true;
+ return TRUE;
- hplink = hppa_link_hash_table (info);
- dynobj = elf_hash_table (info)->dynobj;
+ htab = hppa_link_hash_table (info);
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- local_got_refcounts = elf_local_got_refcounts (abfd);
sreloc = NULL;
stubreloc = NULL;
NEED_GOT = 1,
NEED_PLT = 2,
NEED_DYNREL = 4,
-#if LONG_BRANCH_PIC_IN_SHLIB
- NEED_STUBREL = 0 /* We won't be needing them in this case. */
-#else
- NEED_STUBREL = 8
-#endif
+ PLT_PLABEL = 8
};
unsigned int r_symndx, r_type;
case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
case R_PARISC_PLABEL21L:
case R_PARISC_PLABEL32:
- if (h == NULL)
- {
- /* If this is a local symbol we do not need to create a
- PLT entry, but if we are creating a shared object we
- have to output a relocation for the PLABEL itself. */
- need_entry = NEED_DYNREL;
- }
- else
- {
- /* If it is a global symbol, then we do need to create a
- PLT entry, and additionally, if we are creating a
- shared object, we need to output a dynamic relocation
- pointing to that PLT entry. */
- need_entry = NEED_PLT | NEED_DYNREL;
- }
+ /* If the addend is non-zero, we break badly. */
+ if (rel->r_addend != 0)
+ abort ();
+
+ /* If we are creating a shared library, then we need to
+ create a PLT entry for all PLABELs, because PLABELs with
+ local symbols may be passed via a pointer to another
+ object. Additionally, output a dynamic relocation
+ pointing to the PLT entry.
+ For executables, the original 32-bit ABI allowed two
+ different styles of PLABELs (function pointers): For
+ global functions, the PLABEL word points into the .plt
+ two bytes past a (function address, gp) pair, and for
+ local functions the PLABEL points directly at the
+ function. The magic +2 for the first type allows us to
+ differentiate between the two. As you can imagine, this
+ is a real pain when it comes to generating code to call
+ functions indirectly or to compare function pointers.
+ We avoid the mess by always pointing a PLABEL into the
+ .plt, even for local functions. */
+ need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
break;
case R_PARISC_PCREL12F:
+ htab->has_12bit_branch = 1;
+ goto branch_common;
+
case R_PARISC_PCREL17C:
case R_PARISC_PCREL17F:
+ htab->has_17bit_branch = 1;
+ goto branch_common;
+
case R_PARISC_PCREL22F:
- /* Handle calls, and function pointers as they might need to
- go through the .plt, and might require long branch stubs. */
+ htab->has_22bit_branch = 1;
+ branch_common:
+ /* Function calls might need to go through the .plt, and
+ might require long branch stubs. */
if (h == NULL)
{
/* We know local syms won't need a .plt entry, and if
stub. Unfortunately, we have to cater for the case
where a symbol is forced local by versioning, or due
to symbolic linking, and we lose the .plt entry. */
- need_entry = NEED_PLT | NEED_STUBREL;
+ need_entry = NEED_PLT;
+ if (h->elf.type == STT_PARISC_MILLI)
+ need_entry = 0;
}
break;
case R_PARISC_SEGBASE: /* Used to set segment base. */
- case R_PARISC_SEGREL32: /* Relative reloc. */
+ case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
case R_PARISC_PCREL14F: /* PC relative load/store. */
case R_PARISC_PCREL14R:
case R_PARISC_PCREL17R: /* External branches. */
{
(*_bfd_error_handler)
(_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"),
- bfd_get_filename (abfd),
+ bfd_archive_filename (abfd),
elf_hppa_howto_table[r_type].name);
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
/* Fall through. */
case R_PARISC_DIR17F: /* Used for external branches. */
case R_PARISC_DIR17R:
- case R_PARISC_DIR14R: /* Used for load/store from absolute locn. */
+ case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
+ case R_PARISC_DIR14R:
case R_PARISC_DIR21L: /* As above, and for ext branches too. */
-#if 1
+#if 0
/* Help debug shared library creation. Any of the above
relocs can be used in shared libs, but they may cause
pages to become unshared. */
{
(*_bfd_error_handler)
(_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"),
- bfd_get_filename (abfd),
+ bfd_archive_filename (abfd),
elf_hppa_howto_table[r_type].name);
}
/* Fall through. */
#endif
- case R_PARISC_DIR32: /* .word, PARISC.unwind relocs. */
+ case R_PARISC_DIR32: /* .word relocs. */
/* We may want to output a dynamic relocation later. */
need_entry = NEED_DYNREL;
break;
case R_PARISC_GNU_VTINHERIT:
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec,
&h->elf, rel->r_offset))
- return false;
+ return FALSE;
continue;
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_PARISC_GNU_VTENTRY:
if (!_bfd_elf32_gc_record_vtentry (abfd, sec,
- &h->elf, rel->r_offset))
- return false;
+ &h->elf, rel->r_addend))
+ return FALSE;
continue;
default:
if (need_entry & NEED_GOT)
{
/* Allocate space for a GOT entry, as well as a dynamic
- relocation for this entry. */
- if (dynobj == NULL)
- elf_hash_table (info)->dynobj = dynobj = abfd;
-
- if (hplink->sgot == NULL)
+ relocation for this entry. */
+ if (htab->sgot == NULL)
{
- if (! elf32_hppa_create_dynamic_sections (dynobj, info))
- return false;
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
+ if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info))
+ return FALSE;
}
if (h != NULL)
{
- if (h->elf.got.refcount == -1)
- {
- h->elf.got.refcount = 1;
-
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->elf.dynindx == -1)
- {
- if (! bfd_elf32_link_record_dynamic_symbol (info,
- &h->elf))
- return false;
- }
-
- hplink->sgot->_raw_size += GOT_ENTRY_SIZE;
- hplink->srelgot->_raw_size += sizeof (Elf32_External_Rela);
- }
- else
- h->elf.got.refcount += 1;
+ h->elf.got.refcount += 1;
}
else
{
+ bfd_signed_vma *local_got_refcounts;
+
/* This is a global offset table entry for a local symbol. */
+ local_got_refcounts = elf_local_got_refcounts (abfd);
if (local_got_refcounts == NULL)
{
- size_t size;
-
- size = symtab_hdr->sh_info * sizeof (bfd_signed_vma);
+ bfd_size_type size;
+
+ /* Allocate space for local got offsets and local
+ plt offsets. Done this way to save polluting
+ elf_obj_tdata with another target specific
+ pointer. */
+ size = symtab_hdr->sh_info;
+ size *= 2 * sizeof (bfd_signed_vma);
local_got_refcounts = ((bfd_signed_vma *)
- bfd_alloc (abfd, size));
+ bfd_zalloc (abfd, size));
if (local_got_refcounts == NULL)
- return false;
+ return FALSE;
elf_local_got_refcounts (abfd) = local_got_refcounts;
- memset (local_got_refcounts, -1, size);
- }
- if (local_got_refcounts[r_symndx] == -1)
- {
- local_got_refcounts[r_symndx] = 1;
-
- hplink->sgot->_raw_size += GOT_ENTRY_SIZE;
- if (info->shared)
- {
- /* If we are generating a shared object, we need to
- output a reloc so that the dynamic linker can
- adjust this GOT entry (because the address
- the shared library is loaded at is not fixed). */
- hplink->srelgot->_raw_size +=
- sizeof (Elf32_External_Rela);
- }
}
- else
- local_got_refcounts[r_symndx] += 1;
+ local_got_refcounts[r_symndx] += 1;
}
}
clean up later in adjust_dynamic_symbol. */
if ((sec->flags & SEC_ALLOC) != 0)
{
- if (h->elf.plt.refcount == -1)
+ if (h != NULL)
{
- h->elf.plt.refcount = 1;
h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
+ h->elf.plt.refcount += 1;
+
+ /* If this .plt entry is for a plabel, mark it so
+ that adjust_dynamic_symbol will keep the entry
+ even if it appears to be local. */
+ if (need_entry & PLT_PLABEL)
+ h->plabel = 1;
+ }
+ else if (need_entry & PLT_PLABEL)
+ {
+ bfd_signed_vma *local_got_refcounts;
+ bfd_signed_vma *local_plt_refcounts;
+
+ local_got_refcounts = elf_local_got_refcounts (abfd);
+ if (local_got_refcounts == NULL)
+ {
+ bfd_size_type size;
+
+ /* Allocate space for local got offsets and local
+ plt offsets. */
+ size = symtab_hdr->sh_info;
+ size *= 2 * sizeof (bfd_signed_vma);
+ local_got_refcounts = ((bfd_signed_vma *)
+ bfd_zalloc (abfd, size));
+ if (local_got_refcounts == NULL)
+ return FALSE;
+ elf_local_got_refcounts (abfd) = local_got_refcounts;
+ }
+ local_plt_refcounts = (local_got_refcounts
+ + symtab_hdr->sh_info);
+ local_plt_refcounts[r_symndx] += 1;
}
- else
- h->elf.plt.refcount += 1;
}
}
- if (need_entry & (NEED_DYNREL | NEED_STUBREL))
+ if (need_entry & NEED_DYNREL)
{
/* Flag this symbol as having a non-got, non-plt reference
so that we generate copy relocs if it turns out to be
dynamic. */
- if (h != NULL)
+ if (h != NULL && !info->shared)
h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
/* If we are creating a shared library then we need to copy
have not seen all the input files, so it is possible that
DEF_REGULAR is not set now but will be set later (it is
never cleared). We account for that possibility below by
- storing information in the reloc_entries field of the
+ storing information in the dyn_relocs field of the
hash table entry.
A similar situation to the -Bsymbolic case occurs when
links or visibility changes anyway. A STUB_REL reloc
is absolute too, as in that case it is the reloc in the
stub we will be creating, rather than copying the PCREL
- reloc in the branch. */
- if ((sec->flags & SEC_ALLOC) != 0
- && info->shared
-#if RELATIVE_DYNAMIC_RELOCS
- && (!info->symbolic
- || is_absolute_reloc (r_type)
- || (h != NULL
- && ((h->elf.elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0
- || h->elf.root.type == bfd_link_hash_defweak)))
-#endif
- )
+ reloc in the branch.
+
+ If on the other hand, we are creating an executable, we
+ may need to keep relocations for symbols satisfied by a
+ dynamic library if we manage to avoid copy relocs for the
+ symbol. */
+ if ((info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && (IS_ABSOLUTE_RELOC (r_type)
+ || (h != NULL
+ && (!info->symbolic
+ || h->elf.root.type == bfd_link_hash_defweak
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || (!info->shared
+ && (sec->flags & SEC_ALLOC) != 0
+ && h != NULL
+ && (h->elf.root.type == bfd_link_hash_defweak
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)))
{
- boolean doit;
- asection *srel;
-
- srel = sreloc;
- if ((need_entry & NEED_STUBREL))
- srel = stubreloc;
+ struct elf32_hppa_dyn_reloc_entry *p;
+ struct elf32_hppa_dyn_reloc_entry **head;
/* Create a reloc section in dynobj and make room for
this reloc. */
- if (srel == NULL)
+ if (sreloc == NULL)
{
char *name;
+ bfd *dynobj;
- if (dynobj == NULL)
- elf_hash_table (info)->dynobj = dynobj = abfd;
-
- name = bfd_elf_string_from_elf_section
- (abfd,
- elf_elfheader (abfd)->e_shstrndx,
- elf_section_data (sec)->rel_hdr.sh_name);
+ name = (bfd_elf_string_from_elf_section
+ (abfd,
+ elf_elfheader (abfd)->e_shstrndx,
+ elf_section_data (sec)->rel_hdr.sh_name));
if (name == NULL)
{
(*_bfd_error_handler)
(_("Could not find relocation section for %s"),
sec->name);
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
- if ((need_entry & NEED_STUBREL))
- {
- int len = strlen (name) + sizeof (STUB_SUFFIX);
- char *newname = bfd_malloc (len);
-
- if (newname == NULL)
- return false;
- strcpy (newname, name);
- strcpy (newname + len - sizeof (STUB_SUFFIX),
- STUB_SUFFIX);
- name = newname;
- }
+ if (htab->elf.dynobj == NULL)
+ htab->elf.dynobj = abfd;
- srel = bfd_get_section_by_name (dynobj, name);
- if (srel == NULL)
+ dynobj = htab->elf.dynobj;
+ sreloc = bfd_get_section_by_name (dynobj, name);
+ if (sreloc == NULL)
{
flagword flags;
- srel = bfd_make_section (dynobj, name);
+ sreloc = bfd_make_section (dynobj, name);
flags = (SEC_HAS_CONTENTS | SEC_READONLY
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
if ((sec->flags & SEC_ALLOC) != 0)
flags |= SEC_ALLOC | SEC_LOAD;
- if (srel == NULL
- || !bfd_set_section_flags (dynobj, srel, flags)
- || !bfd_set_section_alignment (dynobj, srel, 2))
- return false;
+ if (sreloc == NULL
+ || !bfd_set_section_flags (dynobj, sreloc, flags)
+ || !bfd_set_section_alignment (dynobj, sreloc, 2))
+ return FALSE;
}
- else if ((need_entry & NEED_STUBREL))
- free (name);
- if ((need_entry & NEED_STUBREL))
- stubreloc = srel;
- else
- sreloc = srel;
+ elf_section_data (sec)->sreloc = sreloc;
}
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- /* If this is a function call, we only need one dynamic
- reloc for the stub as all calls to a particular
- function will go through the same stub. Actually, a
- long branch stub needs two relocations, but we count
- on some intelligence on the part of the dynamic
- linker. */
- if ((need_entry & NEED_STUBREL))
+ /* If this is a global symbol, we count the number of
+ relocations we need for this symbol. */
+ if (h != NULL)
{
- doit = h->stub_reloc_sec != stubreloc;
- h->stub_reloc_sec = stubreloc;
+ head = &h->dyn_relocs;
}
else
-#endif
- doit = 1;
+ {
+ /* Track dynamic relocs needed for local syms too.
+ We really need local syms available to do this
+ easily. Oh well. */
+
+ asection *s;
+ s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
+ sec, r_symndx);
+ if (s == NULL)
+ return FALSE;
+
+ head = ((struct elf32_hppa_dyn_reloc_entry **)
+ &elf_section_data (s)->local_dynrel);
+ }
- if (doit)
+ p = *head;
+ if (p == NULL || p->sec != sec)
{
- srel->_raw_size += sizeof (Elf32_External_Rela);
-
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
- /* Keep track of relocations we have entered for
- this global symbol, so that we can discard them
- later if necessary. */
- if (h != NULL
- && (0
-#if RELATIVE_DYNAMIC_RELOCS
- || ! is_absolute_reloc (rtype)
+ p = ((struct elf32_hppa_dyn_reloc_entry *)
+ bfd_alloc (htab->elf.dynobj,
+ (bfd_size_type) sizeof *p));
+ if (p == NULL)
+ return FALSE;
+ p->next = *head;
+ *head = p;
+ p->sec = sec;
+ p->count = 0;
+#if RELATIVE_DYNRELOCS
+ p->relative_count = 0;
#endif
- || (need_entry & NEED_STUBREL)))
- {
- struct elf32_hppa_dyn_reloc_entry *p;
-
- for (p = h->reloc_entries; p != NULL; p = p->next)
- if (p->section == srel)
- break;
-
- if (p == NULL)
- {
- p = ((struct elf32_hppa_dyn_reloc_entry *)
- bfd_alloc (dynobj, sizeof *p));
- if (p == NULL)
- return false;
- p->next = h->reloc_entries;
- h->reloc_entries = p;
- p->section = srel;
- p->count = 0;
- }
+ }
- /* NEED_STUBREL and NEED_DYNREL are never both
- set. Leave the count at zero for the
- NEED_STUBREL case as we only ever have one
- stub reloc per section per symbol, and this
- simplifies code in hppa_discard_copies. */
- if (! (need_entry & NEED_STUBREL))
- ++p->count;
- }
+ p->count += 1;
+#if RELATIVE_DYNRELOCS
+ if (!IS_ABSOLUTE_RELOC (rtype))
+ p->relative_count += 1;
#endif
- }
}
}
}
- return true;
+ return TRUE;
}
-
/* Return the section that should be marked against garbage collection
for a given relocation. */
static asection *
-elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym)
- bfd *abfd;
+elf32_hppa_gc_mark_hook (sec, info, rel, h, sym)
+ asection *sec;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
Elf_Internal_Rela *rel;
struct elf_link_hash_entry *h;
}
}
else
- {
- if (!(elf_bad_symtab (abfd)
- && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
- && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
- && sym->st_shndx != SHN_COMMON))
- {
- return bfd_section_from_elf_index (abfd, sym->st_shndx);
- }
- }
+ return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
return NULL;
}
-
/* Update the got and plt entry reference counts for the section being
removed. */
-static boolean
+static bfd_boolean
elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs)
bfd *abfd;
struct bfd_link_info *info ATTRIBUTE_UNUSED;
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes;
bfd_signed_vma *local_got_refcounts;
+ bfd_signed_vma *local_plt_refcounts;
const Elf_Internal_Rela *rel, *relend;
- unsigned long r_symndx;
- struct elf_link_hash_entry *h;
- bfd *dynobj;
- asection *sgot;
- asection *srelgot;
+
+ elf_section_data (sec)->local_dynrel = NULL;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
local_got_refcounts = elf_local_got_refcounts (abfd);
-
- dynobj = elf_hash_table (info)->dynobj;
- if (dynobj == NULL)
- return true;
-
- sgot = hppa_link_hash_table (info)->sgot;
- srelgot = hppa_link_hash_table (info)->srelgot;
+ local_plt_refcounts = local_got_refcounts;
+ if (local_plt_refcounts != NULL)
+ local_plt_refcounts += symtab_hdr->sh_info;
relend = relocs + sec->reloc_count;
for (rel = relocs; rel < relend; rel++)
- switch ((unsigned int) ELF32_R_TYPE (rel->r_info))
- {
- case R_PARISC_DLTIND14F:
- case R_PARISC_DLTIND14R:
- case R_PARISC_DLTIND21L:
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->got.refcount > 0)
+ {
+ unsigned long r_symndx;
+ unsigned int r_type;
+ struct elf_link_hash_entry *h = NULL;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ if (r_symndx >= symtab_hdr->sh_info)
+ {
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry **pp;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
+ if (p->sec == sec)
{
- h->got.refcount -= 1;
- if (h->got.refcount == 0)
- {
- sgot->_raw_size -= 4;
- srelgot->_raw_size -= sizeof (Elf32_External_Rela);
- }
+ /* Everything must go for SEC. */
+ *pp = p->next;
+ break;
}
- }
- else if (local_got_refcounts != NULL)
- {
- if (local_got_refcounts[r_symndx] > 0)
- {
+ }
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ switch (r_type)
+ {
+ case R_PARISC_DLTIND14F:
+ case R_PARISC_DLTIND14R:
+ case R_PARISC_DLTIND21L:
+ if (h != NULL)
+ {
+ if (h->got.refcount > 0)
+ h->got.refcount -= 1;
+ }
+ else if (local_got_refcounts != NULL)
+ {
+ if (local_got_refcounts[r_symndx] > 0)
local_got_refcounts[r_symndx] -= 1;
- if (local_got_refcounts[r_symndx] == 0)
- {
- sgot->_raw_size -= 4;
- if (info->shared)
- srelgot->_raw_size -= sizeof (Elf32_External_Rela);
- }
- }
- }
- break;
+ }
+ break;
- case R_PARISC_PLABEL14R:
- case R_PARISC_PLABEL21L:
- case R_PARISC_PLABEL32:
- case R_PARISC_PCREL12F:
- case R_PARISC_PCREL17C:
- case R_PARISC_PCREL17F:
- case R_PARISC_PCREL22F:
- r_symndx = ELF32_R_SYM (rel->r_info);
- if (r_symndx >= symtab_hdr->sh_info)
- {
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- if (h->plt.refcount > 0)
- h->plt.refcount -= 1;
- }
- break;
+ case R_PARISC_PCREL12F:
+ case R_PARISC_PCREL17C:
+ case R_PARISC_PCREL17F:
+ case R_PARISC_PCREL22F:
+ if (h != NULL)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ break;
- default:
- break;
- }
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ if (h != NULL)
+ {
+ if (h->plt.refcount > 0)
+ h->plt.refcount -= 1;
+ }
+ else if (local_plt_refcounts != NULL)
+ {
+ if (local_plt_refcounts[r_symndx] > 0)
+ local_plt_refcounts[r_symndx] -= 1;
+ }
+ break;
- return true;
+ default:
+ break;
+ }
+ }
+
+ return TRUE;
+}
+
+/* Our own version of hide_symbol, so that we can keep plt entries for
+ plabels. */
+
+static void
+elf32_hppa_hide_symbol (info, h, force_local)
+ struct bfd_link_info *info;
+ struct elf_link_hash_entry *h;
+ bfd_boolean force_local;
+{
+ if (force_local)
+ {
+ h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
+ if (h->dynindx != -1)
+ {
+ h->dynindx = -1;
+ _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
+ h->dynstr_index);
+ }
+ }
+
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ h->plt.offset = (bfd_vma) -1;
+ }
}
+/* This is the condition under which elf32_hppa_finish_dynamic_symbol
+ will be called from elflink.h. If elflink.h doesn't call our
+ finish_dynamic_symbol routine, we'll need to do something about
+ initializing any .plt and .got entries in elf32_hppa_relocate_section. */
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \
+ ((DYN) \
+ && ((INFO)->shared \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
+ && ((H)->dynindx != -1 \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
/* Adjust a symbol defined by a dynamic object and referenced by a
regular object. The current definition is in some section of the
change the definition to something the rest of the link can
understand. */
-static boolean
+static bfd_boolean
elf32_hppa_adjust_dynamic_symbol (info, h)
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
{
- bfd *dynobj;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
asection *s;
-
- dynobj = elf_hash_table (info)->dynobj;
- hplink = hppa_link_hash_table (info);
+ unsigned int power_of_two;
/* If this is a function, put it in the procedure linkage table. We
- will fill in the contents of the procedure linkage table later,
- when we know the address of the .got section. */
+ will fill in the contents of the procedure linkage table later. */
if (h->type == STT_FUNC
|| (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
{
if (h->plt.refcount <= 0
|| ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
&& h->root.type != bfd_link_hash_defweak
+ && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel
&& (!info->shared || info->symbolic)))
{
/* The .plt entry is not needed when:
a) Garbage collection has removed all references to the
symbol, or
b) We know for certain the symbol is defined in this
- object, and it's not a weak definition. Either this
- object is the application or we are doing a shared
- symbolic link. As a special sop to the hppa ABI, we
- keep a .plt entry for functions in sections containing
- PIC code. */
+ object, and it's not a weak definition, nor is the symbol
+ used by a plabel relocation. Either this object is the
+ application or we are doing a shared symbolic link. */
+
+ /* As a special sop to the hppa ABI, we keep a .plt entry
+ for functions in sections containing PIC code. */
if (!info->shared
&& h->plt.refcount > 0
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
&& (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)
- {
- ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
- }
+ ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
else
{
h->plt.offset = (bfd_vma) -1;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
- return true;
}
}
- /* Make an entry in the .plt section. */
- s = hplink->splt;
- h->plt.offset = s->_raw_size;
- s->_raw_size += PLT_ENTRY_SIZE;
-
- if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call)
- {
- /* Make sure this symbol is output as a dynamic symbol. */
- if (h->dynindx == -1)
- {
- if (! bfd_elf32_link_record_dynamic_symbol (info, h))
- return false;
- }
-
- /* We also need to make an entry in the .rela.plt section. */
- s = hplink->srelplt;
- s->_raw_size += sizeof (Elf32_External_Rela);
- }
- return true;
+ return TRUE;
}
+ else
+ h->plt.offset = (bfd_vma) -1;
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
if (h->weakdef != NULL)
{
- BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
- || h->weakdef->root.type == bfd_link_hash_defweak);
+ if (h->weakdef->root.type != bfd_link_hash_defined
+ && h->weakdef->root.type != bfd_link_hash_defweak)
+ abort ();
h->root.u.def.section = h->weakdef->root.u.def.section;
h->root.u.def.value = h->weakdef->root.u.def.value;
- return true;
+ return TRUE;
}
/* This is a reference to a symbol defined by a dynamic object which
For such cases we need not do anything here; the relocations will
be handled correctly by relocate_section. */
if (info->shared)
- return true;
+ return TRUE;
/* If there are no references to this symbol that do not use the
GOT, we don't need to generate a copy reloc. */
if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
- return true;
+ return TRUE;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ s = p->sec->output_section;
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ break;
+ }
+
+ /* If we didn't find any dynamic relocs in read-only sections, then
+ we'll be keeping the dynamic relocs and avoiding the copy reloc. */
+ if (p == NULL)
+ {
+ h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
+ return TRUE;
+ }
/* We must allocate the symbol in our .dynbss section, which will
become part of the .bss section of the executable. There will be
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
- s = hplink->sdynbss;
+ htab = hppa_link_hash_table (info);
/* We must generate a COPY reloc to tell the dynamic linker to
copy the initial value out of the dynamic object and into the
- runtime process image. We need to remember the offset into the
- .rela.bss section we are going to use. */
+ runtime process image. */
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
- asection *srel;
-
- srel = hplink->srelbss;
- srel->_raw_size += sizeof (Elf32_External_Rela);
+ htab->srelbss->_raw_size += sizeof (Elf32_External_Rela);
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
}
- {
- /* We need to figure out the alignment required for this symbol. I
- have no idea how other ELF linkers handle this. */
- unsigned int power_of_two;
-
- power_of_two = bfd_log2 (h->size);
- if (power_of_two > 3)
- power_of_two = 3;
-
- /* Apply the required alignment. */
- s->_raw_size = BFD_ALIGN (s->_raw_size,
- (bfd_size_type) (1 << power_of_two));
- if (power_of_two > bfd_get_section_alignment (dynobj, s))
- {
- if (! bfd_set_section_alignment (dynobj, s, power_of_two))
- return false;
- }
- }
+ /* We need to figure out the alignment required for this symbol. I
+ have no idea how other ELF linkers handle this. */
+
+ power_of_two = bfd_log2 (h->size);
+ if (power_of_two > 3)
+ power_of_two = 3;
+
+ /* Apply the required alignment. */
+ s = htab->sdynbss;
+ s->_raw_size = BFD_ALIGN (s->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
+ if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
+ {
+ if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
+ return FALSE;
+ }
+
/* Define the symbol as being at this point in the section. */
h->root.u.def.section = s;
h->root.u.def.value = s->_raw_size;
/* Increment the section size to make room for the symbol. */
s->_raw_size += h->size;
- return true;
+ return TRUE;
}
-
/* Called via elf_link_hash_traverse to create .plt entries for an
application that uses statically linked PIC functions. Similar to
the first part of elf32_hppa_adjust_dynamic_symbol. */
-static boolean
-hppa_handle_PIC_calls (h, inf)
+static bfd_boolean
+mark_PIC_calls (h, inf)
struct elf_link_hash_entry *h;
- PTR inf;
+ PTR inf ATTRIBUTE_UNUSED;
{
- struct bfd_link_info *info;
- bfd *dynobj;
- struct elf32_hppa_link_hash_table *hplink;
- asection *s;
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
if (! (h->plt.refcount > 0
&& (h->root.type == bfd_link_hash_defined
{
h->plt.offset = (bfd_vma) -1;
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
- return true;
+ return TRUE;
}
+ h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1;
+ return TRUE;
+}
+
+/* Allocate space in the .plt for entries that won't have relocations.
+ ie. pic_call and plabel entries. */
+
+static bfd_boolean
+allocate_plt_static (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *s;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
info = (struct bfd_link_info *) inf;
- dynobj = elf_hash_table (info)->dynobj;
- hplink = hppa_link_hash_table (info);
+ htab = hppa_link_hash_table (info);
+ if (((struct elf32_hppa_link_hash_entry *) h)->pic_call)
+ {
+ /* Make an entry in the .plt section for non-pic code that is
+ calling pic code. */
+ ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0;
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ }
+ else if (htab->elf.dynamic_sections_created
+ && h->plt.refcount > 0)
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
- /* Make an entry in the .plt section. */
- s = hplink->splt;
- h->plt.offset = s->_raw_size;
- s->_raw_size += PLT_ENTRY_SIZE;
+ if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h))
+ {
+ /* Allocate these later. From this point on, h->plabel
+ means that the plt entry is only used by a plabel.
+ We'll be using a normal plt entry for this symbol, so
+ clear the plabel indicator. */
+ ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0;
+ }
+ else if (((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ /* Make an entry in the .plt section for plabel references
+ that won't have a .plt entry for other reasons. */
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ }
+ else
+ {
+ /* No .plt entry needed. */
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
+ }
+ else
+ {
+ h->plt.offset = (bfd_vma) -1;
+ h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
+ }
- return true;
+ return TRUE;
}
+/* Allocate space in .plt, .got and associated reloc sections for
+ global syms. */
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
-/* This function is called via elf_link_hash_traverse to discard space
- we allocated for relocs that it turned out we didn't need. */
-
-static boolean
-hppa_discard_copies (h, inf)
+static bfd_boolean
+allocate_dynrelocs (h, inf)
struct elf_link_hash_entry *h;
PTR inf;
{
- struct elf32_hppa_dyn_reloc_entry *s;
- struct elf32_hppa_link_hash_entry *eh;
struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
+ asection *s;
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (h->root.type == bfd_link_hash_indirect)
+ return TRUE;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
- eh = (struct elf32_hppa_link_hash_entry *) h;
info = (struct bfd_link_info *) inf;
+ htab = hppa_link_hash_table (info);
+ if (htab->elf.dynamic_sections_created
+ && h->plt.offset != (bfd_vma) -1
+ && !((struct elf32_hppa_link_hash_entry *) h)->pic_call
+ && !((struct elf32_hppa_link_hash_entry *) h)->plabel)
+ {
+ /* Make an entry in the .plt section. */
+ s = htab->splt;
+ h->plt.offset = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+
+ /* We also need to make an entry in the .rela.plt section. */
+ htab->srelplt->_raw_size += sizeof (Elf32_External_Rela);
+ htab->need_plt_stub = 1;
+ }
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- /* Handle the stub reloc case. If we have a plt entry for the
- function, we won't be needing long branch stubs. s->count will
- only be zero for stub relocs, which provides a handy way of
- flagging these relocs, and means we need do nothing special for
- the forced local and symbolic link case. */
- if (eh->stub_reloc_sec != NULL
- && eh->elf.plt.offset != (bfd_vma) -1)
+ if (h->got.refcount > 0)
{
- for (s = eh->reloc_entries; s != NULL; s = s->next)
- if (s->count == 0)
- s->section->_raw_size -= sizeof (Elf32_External_Rela);
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ s = htab->sgot;
+ h->got.offset = s->_raw_size;
+ s->_raw_size += GOT_ENTRY_SIZE;
+ if (htab->elf.dynamic_sections_created
+ && (info->shared
+ || (h->dynindx != -1
+ && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0))
+ {
+ htab->srelgot->_raw_size += sizeof (Elf32_External_Rela);
+ }
}
+ else
+ h->got.offset = (bfd_vma) -1;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ if (eh->dyn_relocs == NULL)
+ return TRUE;
+
+ /* If this is a -Bsymbolic shared link, then we need to discard all
+ space allocated for dynamic pc-relative relocs against symbols
+ defined in a regular object. For the normal shared case, discard
+ space for relocs that have become local due to symbol visibility
+ changes. */
+ if (info->shared)
+ {
+#if RELATIVE_DYNRELOCS
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
+ && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
+ || info->symbolic))
+ {
+ struct elf32_hppa_dyn_reloc_entry **pp;
+
+ for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
+ {
+ p->count -= p->relative_count;
+ p->relative_count = 0;
+ if (p->count == 0)
+ *pp = p->next;
+ else
+ pp = &p->next;
+ }
+ }
#endif
+ }
+ else
+ {
+ /* For the non-shared case, discard space for relocs against
+ symbols which turn out to need copy relocs or are not
+ dynamic. */
+ if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || (htab->elf.dynamic_sections_created
+ && (h->root.type == bfd_link_hash_undefweak
+ || h->root.type == bfd_link_hash_undefined))))
+ {
+ /* Make sure this symbol is output as a dynamic symbol.
+ Undefined weak syms won't yet be marked as dynamic. */
+ if (h->dynindx == -1
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
+ && h->type != STT_PARISC_MILLI)
+ {
+ if (! bfd_elf32_link_record_dynamic_symbol (info, h))
+ return FALSE;
+ }
+
+ /* If that succeeded, we know we'll be keeping all the
+ relocs. */
+ if (h->dynindx != -1)
+ goto keep;
+ }
+
+ eh->dyn_relocs = NULL;
+ return TRUE;
+
+ keep: ;
+ }
- /* If a symbol has been forced local or we have found a regular
- definition for the symbolic link case, then we won't be needing
- any relocs. */
-#if RELATIVE_DYNAMIC_RELOCS
- if (eh->elf.dynindx == -1
- || ((eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
- && eh->elf.root.type != bfd_link_hash_defweak
- && info->symbolic))
+ /* Finally, allocate space. */
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
{
- for (s = eh->reloc_entries; s != NULL; s = s->next)
- s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
+ asection *sreloc = elf_section_data (p->sec)->sreloc;
+ sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela);
}
-#endif
- return true;
+ return TRUE;
}
-#endif
+/* This function is called via elf_link_hash_traverse to force
+ millicode symbols local so they do not end up as globals in the
+ dynamic symbol table. We ought to be able to do this in
+ adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
+ for all dynamic symbols. Arguably, this is a bug in
+ elf_adjust_dynamic_symbol. */
+
+static bfd_boolean
+clobber_millicode_symbols (h, info)
+ struct elf_link_hash_entry *h;
+ struct bfd_link_info *info;
+{
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ if (h->type == STT_PARISC_MILLI
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
+ {
+ elf32_hppa_hide_symbol (info, h, TRUE);
+ }
+ return TRUE;
+}
+
+/* Find any dynamic relocs that apply to read-only sections. */
+
+static bfd_boolean
+readonly_dynrelocs (h, inf)
+ struct elf_link_hash_entry *h;
+ PTR inf;
+{
+ struct elf32_hppa_link_hash_entry *eh;
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ eh = (struct elf32_hppa_link_hash_entry *) h;
+ for (p = eh->dyn_relocs; p != NULL; p = p->next)
+ {
+ asection *s = p->sec->output_section;
+
+ if (s != NULL && (s->flags & SEC_READONLY) != 0)
+ {
+ struct bfd_link_info *info = (struct bfd_link_info *) inf;
+
+ info->flags |= DF_TEXTREL;
+
+ /* Not an error, just cut short the traversal. */
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
/* Set the sizes of the dynamic sections. */
-static boolean
+static bfd_boolean
elf32_hppa_size_dynamic_sections (output_bfd, info)
- bfd *output_bfd;
+ bfd *output_bfd ATTRIBUTE_UNUSED;
struct bfd_link_info *info;
{
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
bfd *dynobj;
+ bfd *ibfd;
asection *s;
- boolean relocs;
- boolean reltext;
+ bfd_boolean relocs;
- hplink = hppa_link_hash_table (info);
- dynobj = elf_hash_table (info)->dynobj;
- BFD_ASSERT (dynobj != NULL);
+ htab = hppa_link_hash_table (info);
+ dynobj = htab->elf.dynobj;
+ if (dynobj == NULL)
+ abort ();
- if (elf_hash_table (info)->dynamic_sections_created)
+ if (htab->elf.dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
if (! info->shared)
{
s = bfd_get_section_by_name (dynobj, ".interp");
- BFD_ASSERT (s != NULL);
+ if (s == NULL)
+ abort ();
s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
+
+ /* Force millicode symbols local. */
+ elf_link_hash_traverse (&htab->elf,
+ clobber_millicode_symbols,
+ info);
}
else
{
/* Run through the function symbols, looking for any that are
- PIC, and allocate space for the necessary .plt entries so
- that %r19 will be set up. */
+ PIC, and mark them as needing .plt entries so that %r19 will
+ be set up. */
if (! info->shared)
- elf_link_hash_traverse (&hplink->root,
- hppa_handle_PIC_calls,
- info);
+ elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info);
+ }
+
+ /* Set up .got and .plt offsets for local syms, and space for local
+ dynamic relocs. */
+ for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
+ {
+ bfd_signed_vma *local_got;
+ bfd_signed_vma *end_local_got;
+ bfd_signed_vma *local_plt;
+ bfd_signed_vma *end_local_plt;
+ bfd_size_type locsymcount;
+ Elf_Internal_Shdr *symtab_hdr;
+ asection *srel;
+
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
+ continue;
+
+ for (s = ibfd->sections; s != NULL; s = s->next)
+ {
+ struct elf32_hppa_dyn_reloc_entry *p;
+
+ for (p = ((struct elf32_hppa_dyn_reloc_entry *)
+ elf_section_data (s)->local_dynrel);
+ p != NULL;
+ p = p->next)
+ {
+ if (!bfd_is_abs_section (p->sec)
+ && bfd_is_abs_section (p->sec->output_section))
+ {
+ /* Input section has been discarded, either because
+ it is a copy of a linkonce section or due to
+ linker script /DISCARD/, so we'll be discarding
+ the relocs too. */
+ }
+ else if (p->count != 0)
+ {
+ srel = elf_section_data (p->sec)->sreloc;
+ srel->_raw_size += p->count * sizeof (Elf32_External_Rela);
+ if ((p->sec->output_section->flags & SEC_READONLY) != 0)
+ info->flags |= DF_TEXTREL;
+ }
+ }
+ }
+
+ local_got = elf_local_got_refcounts (ibfd);
+ if (!local_got)
+ continue;
+
+ symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
+ locsymcount = symtab_hdr->sh_info;
+ end_local_got = local_got + locsymcount;
+ s = htab->sgot;
+ srel = htab->srelgot;
+ for (; local_got < end_local_got; ++local_got)
+ {
+ if (*local_got > 0)
+ {
+ *local_got = s->_raw_size;
+ s->_raw_size += GOT_ENTRY_SIZE;
+ if (info->shared)
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_got = (bfd_vma) -1;
+ }
- /* We may have created entries in the .rela.got section.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got,
- which will cause it to get stripped from the output file
- below. */
- hplink->srelgot->_raw_size = 0;
+ local_plt = end_local_got;
+ end_local_plt = local_plt + locsymcount;
+ if (! htab->elf.dynamic_sections_created)
+ {
+ /* Won't be used, but be safe. */
+ for (; local_plt < end_local_plt; ++local_plt)
+ *local_plt = (bfd_vma) -1;
+ }
+ else
+ {
+ s = htab->splt;
+ srel = htab->srelplt;
+ for (; local_plt < end_local_plt; ++local_plt)
+ {
+ if (*local_plt > 0)
+ {
+ *local_plt = s->_raw_size;
+ s->_raw_size += PLT_ENTRY_SIZE;
+ if (info->shared)
+ srel->_raw_size += sizeof (Elf32_External_Rela);
+ }
+ else
+ *local_plt = (bfd_vma) -1;
+ }
+ }
}
-#if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS
- /* If this is a -Bsymbolic shared link, then we need to discard all
- relocs against symbols defined in a regular object. We also need
- to lose relocs we've allocated for long branch stubs if we know
- we won't be generating a stub. */
- if (info->shared)
- elf_link_hash_traverse (&hplink->root,
- hppa_discard_copies,
- info);
-#endif
+ /* Do all the .plt entries without relocs first. The dynamic linker
+ uses the last .plt reloc to find the end of the .plt (and hence
+ the start of the .got) for lazy linking. */
+ elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info);
+
+ /* Allocate global sym .plt and .got entries, and space for global
+ sym dynamic relocs. */
+ elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
memory for them. */
- relocs = false;
- reltext = false;
+ relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
- const char *name;
-
if ((s->flags & SEC_LINKER_CREATED) == 0)
continue;
- /* It's OK to base decisions on the section name, because none
- of the dynobj section names depend upon the input files. */
- name = bfd_get_section_name (dynobj, s);
-
- if (strncmp (name, ".rela", 5) == 0)
+ if (s == htab->splt)
+ {
+ if (htab->need_plt_stub)
+ {
+ /* Make space for the plt stub at the end of the .plt
+ section. We want this stub right at the end, up
+ against the .got section. */
+ int gotalign = bfd_section_alignment (dynobj, htab->sgot);
+ int pltalign = bfd_section_alignment (dynobj, s);
+ bfd_size_type mask;
+
+ if (gotalign > pltalign)
+ bfd_set_section_alignment (dynobj, s, gotalign);
+ mask = ((bfd_size_type) 1 << gotalign) - 1;
+ s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask;
+ }
+ }
+ else if (s == htab->sgot)
+ ;
+ else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
{
if (s->_raw_size != 0)
{
- asection *target;
-
/* Remember whether there are any reloc sections other
than .rela.plt. */
- if (strcmp (name+5, ".plt") != 0)
- {
- const char *outname;
-
- relocs = true;
-
- /* If this relocation section applies to a read only
- section, then we probably need a DT_TEXTREL
- entry. The entries in the .rela.plt section
- really apply to the .got section, which we
- created ourselves and so know is not readonly. */
- outname = bfd_get_section_name (output_bfd,
- s->output_section);
- target = bfd_get_section_by_name (output_bfd, outname + 5);
- if (target != NULL
- && (target->flags & SEC_READONLY) != 0
- && (target->flags & SEC_ALLOC) != 0)
- reltext = true;
- }
+ if (s != htab->srelplt)
+ relocs = TRUE;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
s->reloc_count = 0;
}
}
- else if (strcmp (name, ".plt") == 0)
- ;
- else if (strcmp (name, ".got") == 0)
- ;
else
{
/* It's not one of our sections, so don't allocate space. */
we may not fill in all the reloc sections. */
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
if (s->contents == NULL && s->_raw_size != 0)
- return false;
+ return FALSE;
}
- if (elf_hash_table (info)->dynamic_sections_created)
+ if (htab->elf.dynamic_sections_created)
{
/* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
actually has nothing to do with the PLT, it is how we
communicate the LTP value of a load module to the dynamic
linker. */
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0))
- return false;
+#define add_dynamic_entry(TAG, VAL) \
+ bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
+
+ if (!add_dynamic_entry (DT_PLTGOT, 0))
+ return FALSE;
/* Add some entries to the .dynamic section. We fill in the
values later, in elf32_hppa_finish_dynamic_sections, but we
must add the entries now so that we get the correct size for
the .dynamic section. The DT_DEBUG entry is filled in by the
dynamic linker and used by the debugger. */
- if (! info->shared)
+ if (!info->shared)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
- return false;
+ if (!add_dynamic_entry (DT_DEBUG, 0))
+ return FALSE;
}
- if (hplink->srelplt->_raw_size != 0)
+ if (htab->srelplt->_raw_size != 0)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
- || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
- return false;
+ if (!add_dynamic_entry (DT_PLTRELSZ, 0)
+ || !add_dynamic_entry (DT_PLTREL, DT_RELA)
+ || !add_dynamic_entry (DT_JMPREL, 0))
+ return FALSE;
}
if (relocs)
{
- if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
- || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
- sizeof (Elf32_External_Rela)))
- return false;
- }
-
- if (reltext)
- {
- if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
- return false;
- info->flags |= DF_TEXTREL;
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
+ return FALSE;
+
+ /* If any dynamic relocs apply to a read-only section,
+ then we need a DT_TEXTREL entry. */
+ if ((info->flags & DF_TEXTREL) == 0)
+ elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
+ (PTR) info);
+
+ if ((info->flags & DF_TEXTREL) != 0)
+ {
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
+ return FALSE;
+ }
}
}
+#undef add_dynamic_entry
- return true;
+ return TRUE;
}
-
/* External entry points for sizing and building linker stubs. */
-/* Determine and set the size of the stub section for a final link.
-
- The basic idea here is to examine all the relocations looking for
- PC-relative calls to a target that is unreachable with a "bl"
- instruction. */
+/* Set up various things so that we can make a list of input sections
+ for each output section included in the link. Returns -1 on error,
+ 0 when no stubs will be needed, and 1 on success. */
-boolean
-elf32_hppa_size_stubs (stub_bfd, multi_subspace, info,
- add_stub_section, layout_sections_again)
- bfd *stub_bfd;
- boolean multi_subspace;
+int
+elf32_hppa_setup_section_lists (output_bfd, info)
+ bfd *output_bfd;
struct bfd_link_info *info;
- asection * (*add_stub_section) PARAMS ((const char *, asection *));
- void (*layout_sections_again) PARAMS ((void));
{
bfd *input_bfd;
+ unsigned int bfd_count;
+ int top_id, top_index;
asection *section;
- Elf_Internal_Sym *local_syms, **all_local_syms;
- unsigned int i, indx, bfd_count, sec_count;
- struct elf32_hppa_link_hash_table *hplink;
- boolean stub_changed = 0;
+ asection **input_list, **list;
+ bfd_size_type amt;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
- hplink = hppa_link_hash_table (info);
+ if (htab->elf.root.creator->flavour != bfd_target_elf_flavour)
+ return 0;
- /* Stash our params away. */
- hplink->stub_bfd = stub_bfd;
- hplink->multi_subspace = multi_subspace;
- hplink->add_stub_section = add_stub_section;
- hplink->layout_sections_again = layout_sections_again;
-
- /* Count the number of input BFDs and the total number of input sections. */
- for (input_bfd = info->input_bfds, bfd_count = 0, sec_count = 0;
+ /* Count the number of input BFDs and find the top input section id. */
+ for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
input_bfd != NULL;
input_bfd = input_bfd->link_next)
{
bfd_count += 1;
- sec_count += input_bfd->section_count;
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ if (top_id < section->id)
+ top_id = section->id;
+ }
+ }
+ htab->bfd_count = bfd_count;
+
+ amt = sizeof (struct map_stub) * (top_id + 1);
+ htab->stub_group = (struct map_stub *) bfd_zmalloc (amt);
+ if (htab->stub_group == NULL)
+ return -1;
+
+ /* We can't use output_bfd->section_count here to find the top output
+ section index as some sections may have been removed, and
+ _bfd_strip_section_from_output doesn't renumber the indices. */
+ for (section = output_bfd->sections, top_index = 0;
+ section != NULL;
+ section = section->next)
+ {
+ if (top_index < section->index)
+ top_index = section->index;
+ }
+
+ htab->top_index = top_index;
+ amt = sizeof (asection *) * (top_index + 1);
+ input_list = (asection **) bfd_malloc (amt);
+ htab->input_list = input_list;
+ if (input_list == NULL)
+ return -1;
+
+ /* For sections we aren't interested in, mark their entries with a
+ value we can check later. */
+ list = input_list + top_index;
+ do
+ *list = bfd_abs_section_ptr;
+ while (list-- != input_list);
+
+ for (section = output_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ if ((section->flags & SEC_CODE) != 0)
+ input_list[section->index] = NULL;
}
- hplink->stub_section_created
- = (asection **) bfd_zmalloc (sizeof (asection *) * sec_count);
- if (hplink->stub_section_created == NULL)
- return false;
+ return 1;
+}
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- hplink->reloc_section_created
- = (asection **) bfd_zmalloc (sizeof (asection *) * sec_count);
- if (hplink->reloc_section_created == NULL)
- goto error_ret_free_stub;
-#endif
+/* The linker repeatedly calls this function for each input section,
+ in the order that input sections are linked into output sections.
+ Build lists of input sections to determine groupings between which
+ we may insert linker stubs. */
+
+void
+elf32_hppa_next_input_section (info, isec)
+ struct bfd_link_info *info;
+ asection *isec;
+{
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+
+ if (isec->output_section->index <= htab->top_index)
+ {
+ asection **list = htab->input_list + isec->output_section->index;
+ if (*list != bfd_abs_section_ptr)
+ {
+ /* Steal the link_sec pointer for our list. */
+#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
+ /* This happens to make the list in reverse order,
+ which is what we want. */
+ PREV_SEC (isec) = *list;
+ *list = isec;
+ }
+ }
+}
+
+/* See whether we can group stub sections together. Grouping stub
+ sections may result in fewer stubs. More importantly, we need to
+ put all .init* and .fini* stubs at the beginning of the .init or
+ .fini output sections respectively, because glibc splits the
+ _init and _fini functions into multiple parts. Putting a stub in
+ the middle of a function is not a good idea. */
+
+static void
+group_sections (htab, stub_group_size, stubs_always_before_branch)
+ struct elf32_hppa_link_hash_table *htab;
+ bfd_size_type stub_group_size;
+ bfd_boolean stubs_always_before_branch;
+{
+ asection **list = htab->input_list + htab->top_index;
+ do
+ {
+ asection *tail = *list;
+ if (tail == bfd_abs_section_ptr)
+ continue;
+ while (tail != NULL)
+ {
+ asection *curr;
+ asection *prev;
+ bfd_size_type total;
+ bfd_boolean big_sec;
+
+ curr = tail;
+ if (tail->_cooked_size)
+ total = tail->_cooked_size;
+ else
+ total = tail->_raw_size;
+ big_sec = total >= stub_group_size;
+
+ while ((prev = PREV_SEC (curr)) != NULL
+ && ((total += curr->output_offset - prev->output_offset)
+ < stub_group_size))
+ curr = prev;
+
+ /* OK, the size from the start of CURR to the end is less
+ than 240000 bytes and thus can be handled by one stub
+ section. (or the tail section is itself larger than
+ 240000 bytes, in which case we may be toast.)
+ We should really be keeping track of the total size of
+ stubs added here, as stubs contribute to the final output
+ section size. That's a little tricky, and this way will
+ only break if stubs added total more than 22144 bytes, or
+ 2768 long branch stubs. It seems unlikely for more than
+ 2768 different functions to be called, especially from
+ code only 240000 bytes long. This limit used to be
+ 250000, but c++ code tends to generate lots of little
+ functions, and sometimes violated the assumption. */
+ do
+ {
+ prev = PREV_SEC (tail);
+ /* Set up this stub group. */
+ htab->stub_group[tail->id].link_sec = curr;
+ }
+ while (tail != curr && (tail = prev) != NULL);
+
+ /* But wait, there's more! Input sections up to 240000
+ bytes before the stub section can be handled by it too.
+ Don't do this if we have a really large section after the
+ stubs, as adding more stubs increases the chance that
+ branches may not reach into the stub section. */
+ if (!stubs_always_before_branch && !big_sec)
+ {
+ total = 0;
+ while (prev != NULL
+ && ((total += tail->output_offset - prev->output_offset)
+ < stub_group_size))
+ {
+ tail = prev;
+ prev = PREV_SEC (tail);
+ htab->stub_group[tail->id].link_sec = curr;
+ }
+ }
+ tail = prev;
+ }
+ }
+ while (list-- != htab->input_list);
+ free (htab->input_list);
+#undef PREV_SEC
+}
+
+/* Read in all local syms for all input bfds, and create hash entries
+ for export stubs if we are building a multi-subspace shared lib.
+ Returns -1 on error, 1 if export stubs created, 0 otherwise. */
+
+static int
+get_local_syms (output_bfd, input_bfd, info)
+ bfd *output_bfd;
+ bfd *input_bfd;
+ struct bfd_link_info *info;
+{
+ unsigned int bfd_indx;
+ Elf_Internal_Sym *local_syms, **all_local_syms;
+ int stub_changed = 0;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
/* We want to read in symbol extension records only once. To do this
we need to read in the local symbols in parallel and save them for
later use; so hold pointers to the local symbols in an array. */
- all_local_syms
- = (Elf_Internal_Sym **) bfd_zmalloc (sizeof (Elf_Internal_Sym *)
- * bfd_count);
+ bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
+ all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt);
+ htab->all_local_syms = all_local_syms;
if (all_local_syms == NULL)
- goto error_ret_free_reloc;
+ return -1;
/* Walk over all the input BFDs, swapping in local symbols.
If we are creating a shared library, create hash entries for the
export stubs. */
- for (input_bfd = info->input_bfds, indx = 0, sec_count = 0;
+ for (bfd_indx = 0;
input_bfd != NULL;
- input_bfd = input_bfd->link_next, indx++)
+ input_bfd = input_bfd->link_next, bfd_indx++)
{
Elf_Internal_Shdr *symtab_hdr;
- Elf_Internal_Sym *isym;
- Elf32_External_Sym *ext_syms, *esym;
/* We'll need the symbol table in a second. */
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
if (symtab_hdr->sh_info == 0)
continue;
- /* We need an array of the local symbols attached to the input bfd.
- Unfortunately, we're going to have to read & swap them in. */
- local_syms = (Elf_Internal_Sym *)
- bfd_malloc (symtab_hdr->sh_info * sizeof (Elf_Internal_Sym));
+ /* We need an array of the local symbols attached to the input bfd. */
+ local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
if (local_syms == NULL)
{
- goto error_ret_free_local;
- }
- all_local_syms[indx] = local_syms;
- ext_syms = (Elf32_External_Sym *)
- bfd_malloc (symtab_hdr->sh_info * sizeof (Elf32_External_Sym));
- if (ext_syms == NULL)
- {
- goto error_ret_free_local;
+ local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
+ symtab_hdr->sh_info, 0,
+ NULL, NULL, NULL);
+ /* Cache them for elf_link_input_bfd. */
+ symtab_hdr->contents = (unsigned char *) local_syms;
}
+ if (local_syms == NULL)
+ return -1;
- if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
- || (bfd_read (ext_syms, 1,
- (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)),
- input_bfd)
- != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
- {
- free (ext_syms);
- goto error_ret_free_local;
- }
-
- /* Swap the local symbols in. */
- isym = local_syms;
- esym = ext_syms;
- for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++)
- bfd_elf32_swap_symbol_in (input_bfd, esym, isym);
-
- /* Now we can free the external symbols. */
- free (ext_syms);
+ all_local_syms[bfd_indx] = local_syms;
- if (info->shared && hplink->multi_subspace)
+ if (info->shared && htab->multi_subspace)
{
- unsigned int symndx;
+ struct elf_link_hash_entry **sym_hashes;
+ struct elf_link_hash_entry **end_hashes;
unsigned int symcount;
symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
- symtab_hdr->sh_info);
+ sym_hashes = elf_sym_hashes (input_bfd);
+ end_hashes = sym_hashes + symcount;
/* Look through the global syms for functions; We need to
build export stubs for all globally visible functions. */
- for (symndx = 0; symndx < symcount; symndx++)
+ for (; sym_hashes < end_hashes; sym_hashes++)
{
struct elf32_hppa_link_hash_entry *hash;
- hash = ((struct elf32_hppa_link_hash_entry *)
- elf_sym_hashes (input_bfd)[symndx]);
+ hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes;
while (hash->elf.root.type == bfd_link_hash_indirect
|| hash->elf.root.type == bfd_link_hash_warning)
|| hash->elf.root.type == bfd_link_hash_defweak)
&& hash->elf.type == STT_FUNC
&& hash->elf.root.u.def.section->output_section != NULL
+ && (hash->elf.root.u.def.section->output_section->owner
+ == output_bfd)
&& hash->elf.root.u.def.section->owner == input_bfd
&& (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
&& !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL)
sec = hash->elf.root.u.def.section;
stub_name = hash->elf.root.root.string;
- stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table,
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
stub_name,
- false, false);
+ FALSE, FALSE);
if (stub_entry == NULL)
{
- stub_entry = hppa_add_stub (stub_name,
- sec,
- sec_count + sec->index,
- info);
+ stub_entry = hppa_add_stub (stub_name, sec, htab);
if (!stub_entry)
- goto error_ret_free_local;
+ return -1;
stub_entry->target_value = hash->elf.root.u.def.value;
stub_entry->target_section = hash->elf.root.u.def.section;
else
{
(*_bfd_error_handler) (_("%s: duplicate export stub %s"),
- bfd_get_filename (input_bfd),
- stub_name);
+ bfd_archive_filename (input_bfd),
+ stub_name);
}
}
}
- sec_count += input_bfd->section_count;
}
}
+ return stub_changed;
+}
+
+/* Determine and set the size of the stub section for a final link.
+
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bl"
+ instruction. */
+
+bfd_boolean
+elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size,
+ add_stub_section, layout_sections_again)
+ bfd *output_bfd;
+ bfd *stub_bfd;
+ struct bfd_link_info *info;
+ bfd_boolean multi_subspace;
+ bfd_signed_vma group_size;
+ asection * (*add_stub_section) PARAMS ((const char *, asection *));
+ void (*layout_sections_again) PARAMS ((void));
+{
+ bfd_size_type stub_group_size;
+ bfd_boolean stubs_always_before_branch;
+ bfd_boolean stub_changed;
+ struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
+
+ /* Stash our params away. */
+ htab->stub_bfd = stub_bfd;
+ htab->multi_subspace = multi_subspace;
+ htab->add_stub_section = add_stub_section;
+ htab->layout_sections_again = layout_sections_again;
+ stubs_always_before_branch = group_size < 0;
+ if (group_size < 0)
+ stub_group_size = -group_size;
+ else
+ stub_group_size = group_size;
+ if (stub_group_size == 1)
+ {
+ /* Default values. */
+ if (stubs_always_before_branch)
+ {
+ stub_group_size = 7680000;
+ if (htab->has_17bit_branch || htab->multi_subspace)
+ stub_group_size = 240000;
+ if (htab->has_12bit_branch)
+ stub_group_size = 7500;
+ }
+ else
+ {
+ stub_group_size = 6971392;
+ if (htab->has_17bit_branch || htab->multi_subspace)
+ stub_group_size = 217856;
+ if (htab->has_12bit_branch)
+ stub_group_size = 6808;
+ }
+ }
+
+ group_sections (htab, stub_group_size, stubs_always_before_branch);
+
+ switch (get_local_syms (output_bfd, info->input_bfds, info))
+ {
+ default:
+ if (htab->all_local_syms)
+ goto error_ret_free_local;
+ return FALSE;
+
+ case 0:
+ stub_changed = FALSE;
+ break;
+
+ case 1:
+ stub_changed = TRUE;
+ break;
+ }
+
while (1)
{
+ bfd *input_bfd;
+ unsigned int bfd_indx;
asection *stub_sec;
- for (input_bfd = info->input_bfds, indx = 0, sec_count = 0;
+ for (input_bfd = info->input_bfds, bfd_indx = 0;
input_bfd != NULL;
- input_bfd = input_bfd->link_next, indx++)
+ input_bfd = input_bfd->link_next, bfd_indx++)
{
Elf_Internal_Shdr *symtab_hdr;
+ asection *section;
+ Elf_Internal_Sym *local_syms;
/* We'll need the symbol table in a second. */
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
if (symtab_hdr->sh_info == 0)
continue;
- local_syms = all_local_syms[indx];
+ local_syms = htab->all_local_syms[bfd_indx];
/* Walk over each section attached to the input bfd. */
for (section = input_bfd->sections;
section != NULL;
- section = section->next, sec_count++)
+ section = section->next)
{
- Elf_Internal_Shdr *input_rel_hdr;
- Elf32_External_Rela *external_relocs, *erelaend, *erela;
Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
/* If there aren't any relocs, then there's nothing more
|| section->reloc_count == 0)
continue;
- /* Allocate space for the external relocations. */
- external_relocs
- = ((Elf32_External_Rela *)
- bfd_malloc (section->reloc_count
- * sizeof (Elf32_External_Rela)));
- if (external_relocs == NULL)
- {
- goto error_ret_free_local;
- }
-
- /* Likewise for the internal relocations. */
- internal_relocs = ((Elf_Internal_Rela *)
- bfd_malloc (section->reloc_count
- * sizeof (Elf_Internal_Rela)));
- if (internal_relocs == NULL)
- {
- free (external_relocs);
- goto error_ret_free_local;
- }
-
- /* Read in the external relocs. */
- input_rel_hdr = &elf_section_data (section)->rel_hdr;
- if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
- || bfd_read (external_relocs, 1,
- input_rel_hdr->sh_size,
- input_bfd) != input_rel_hdr->sh_size)
- {
- free (external_relocs);
- error_ret_free_internal:
- free (internal_relocs);
- goto error_ret_free_local;
- }
-
- /* Swap in the relocs. */
- erela = external_relocs;
- erelaend = erela + section->reloc_count;
- irela = internal_relocs;
- for (; erela < erelaend; erela++, irela++)
- bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
+ /* If this section is a link-once section that will be
+ discarded, then don't create any stubs. */
+ if (section->output_section == NULL
+ || section->output_section->owner != output_bfd)
+ continue;
- /* We're done with the external relocs, free them. */
- free (external_relocs);
+ /* Get the relocs. */
+ internal_relocs
+ = _bfd_elf32_link_read_relocs (input_bfd, section, NULL,
+ (Elf_Internal_Rela *) NULL,
+ info->keep_memory);
+ if (internal_relocs == NULL)
+ goto error_ret_free_local;
/* Now examine each relocation. */
irela = internal_relocs;
bfd_vma destination;
struct elf32_hppa_link_hash_entry *hash;
char *stub_name;
+ const asection *id_sec;
r_type = ELF32_R_TYPE (irela->r_info);
r_indx = ELF32_R_SYM (irela->r_info);
if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
{
bfd_set_error (bfd_error_bad_value);
- goto error_ret_free_internal;
+ error_ret_free_internal:
+ if (elf_section_data (section)->relocs == NULL)
+ free (internal_relocs);
+ goto error_ret_free_local;
}
/* Only look for stubs on call instructions. */
if (! (info->shared
&& !info->no_undefined
&& (ELF_ST_VISIBILITY (hash->elf.other)
- == STV_DEFAULT)))
+ == STV_DEFAULT)
+ && hash->elf.type != STT_PARISC_MILLI))
continue;
}
else
if (stub_type == hppa_stub_none)
continue;
+ /* Support for grouping stub sections. */
+ id_sec = htab->stub_group[section->id].link_sec;
+
/* Get the name of this stub. */
- stub_name = hppa_stub_name (section, sym_sec, hash, irela);
+ stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela);
if (!stub_name)
goto error_ret_free_internal;
- stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table,
+ stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
stub_name,
- false, false);
+ FALSE, FALSE);
if (stub_entry != NULL)
{
/* The proper stub has already been created. */
continue;
}
- stub_entry = hppa_add_stub (stub_name, section,
- sec_count, info);
+ stub_entry = hppa_add_stub (stub_name, section, htab);
if (stub_entry == NULL)
{
free (stub_name);
- goto error_ret_free_local;
+ goto error_ret_free_internal;
}
stub_entry->target_value = sym_value;
{
if (stub_type == hppa_stub_import)
stub_entry->stub_type = hppa_stub_import_shared;
- else if (stub_type == hppa_stub_long_branch
- && (LONG_BRANCH_PIC_IN_SHLIB || hash == NULL))
+ else if (stub_type == hppa_stub_long_branch)
stub_entry->stub_type = hppa_stub_long_branch_shared;
}
stub_entry->h = hash;
- stub_changed = 1;
+ stub_changed = TRUE;
}
/* We're done with the internal relocs, free them. */
- free (internal_relocs);
+ if (elf_section_data (section)->relocs == NULL)
+ free (internal_relocs);
}
}
/* OK, we've added some stubs. Find out the new size of the
stub sections. */
- hplink->offset = (bfd_vma *)
- bfd_realloc (hplink->offset,
- hplink->stub_bfd->section_count * sizeof (bfd_vma));
- if (hplink->offset == NULL)
- goto error_ret_free_local;
-
- memset (hplink->offset, 0,
- hplink->stub_bfd->section_count * sizeof (bfd_vma));
-
- bfd_hash_traverse (&hplink->stub_hash_table,
- hppa_size_one_stub,
- hplink);
-
- for (stub_sec = hplink->stub_bfd->sections;
+ for (stub_sec = htab->stub_bfd->sections;
stub_sec != NULL;
stub_sec = stub_sec->next)
{
- bfd_set_section_size (hplink->stub_bfd, stub_sec,
- hplink->offset[stub_sec->index]);
+ stub_sec->_raw_size = 0;
+ stub_sec->_cooked_size = 0;
}
+
+ bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab);
+
/* Ask the linker to do its stuff. */
- (*hplink->layout_sections_again) ();
- stub_changed = 0;
+ (*htab->layout_sections_again) ();
+ stub_changed = FALSE;
}
- /* We're done with the local symbols, free them. */
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- free (hplink->reloc_section_created);
-#endif
- free (hplink->stub_section_created);
- return true;
+ free (htab->all_local_syms);
+ return TRUE;
error_ret_free_local:
- for (i = 0; i < bfd_count; i++)
- if (all_local_syms[i])
- free (all_local_syms[i]);
- free (all_local_syms);
-
- error_ret_free_reloc:
-#if ! LONG_BRANCH_PIC_IN_SHLIB
- free (hplink->reloc_section_created);
- error_ret_free_stub:
-#endif
- free (hplink->stub_section_created);
- return false;
+ free (htab->all_local_syms);
+ return FALSE;
}
-
/* For a final link, this function is called after we have sized the
stubs to provide a value for __gp. */
-boolean
+bfd_boolean
elf32_hppa_set_gp (abfd, info)
bfd *abfd;
struct bfd_link_info *info;
{
- struct elf_link_hash_entry *h;
- asection *sec;
- bfd_vma gp_val;
+ struct bfd_link_hash_entry *h;
+ asection *sec = NULL;
+ bfd_vma gp_val = 0;
+ struct elf32_hppa_link_hash_table *htab;
- h = elf_link_hash_lookup (elf_hash_table (info), "$global$",
- false, false, false);
+ htab = hppa_link_hash_table (info);
+ h = bfd_link_hash_lookup (&htab->elf.root, "$global$", FALSE, FALSE, FALSE);
- if (h != NULL && h->root.type == bfd_link_hash_defined)
+ if (h != NULL
+ && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak))
{
- gp_val = h->root.u.def.value;
- sec = h->root.u.def.section;
+ gp_val = h->u.def.value;
+ sec = h->u.def.section;
}
else
{
- /* If $global$ isn't defined, we make one up ourselves
- from the start of .data, .plt, or .got. */
- struct elf32_hppa_link_hash_table *hplink;
+ asection *splt;
+ asection *sgot;
+
+ if (htab->elf.root.creator->flavour == bfd_target_elf_flavour)
+ {
+ splt = htab->splt;
+ sgot = htab->sgot;
+ }
+ else
+ {
+ /* If we're not elf, look up the output sections in the
+ hope we may actually find them. */
+ splt = bfd_get_section_by_name (abfd, ".plt");
+ sgot = bfd_get_section_by_name (abfd, ".got");
+ }
+
+ /* Choose to point our LTP at, in this order, one of .plt, .got,
+ or .data, if these sections exist. In the case of choosing
+ .plt try to make the LTP ideal for addressing anywhere in the
+ .plt or .got with a 14 bit signed offset. Typically, the end
+ of the .plt is the start of the .got, so choose .plt + 0x2000
+ if either the .plt or .got is larger than 0x2000. If both
+ the .plt and .got are smaller than 0x2000, choose the end of
+ the .plt section. */
+ sec = splt;
+ if (sec != NULL)
+ {
+ gp_val = sec->_raw_size;
+ if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000))
+ {
+ gp_val = 0x2000;
+ }
+ }
+ else
+ {
+ sec = sgot;
+ if (sec != NULL)
+ {
+ /* We know we don't have a .plt. If .got is large,
+ offset our LTP. */
+ if (sec->_raw_size > 0x2000)
+ gp_val = 0x2000;
+ }
+ else
+ {
+ /* No .plt or .got. Who cares what the LTP is? */
+ sec = bfd_get_section_by_name (abfd, ".data");
+ }
+ }
- hplink = hppa_link_hash_table (info);
- gp_val = 0;
- sec = bfd_get_section_by_name (abfd, ".data");
- if (sec == NULL)
- sec = hplink->splt;
- if (sec == NULL)
- sec = hplink->sgot;
- if (sec == NULL)
+ if (h != NULL)
{
- (*info->callbacks->undefined_symbol)
- (info, "$global$", abfd, NULL, 0, true);
- return false;
+ h->type = bfd_link_hash_defined;
+ h->u.def.value = gp_val;
+ if (sec != NULL)
+ h->u.def.section = sec;
+ else
+ h->u.def.section = bfd_abs_section_ptr;
}
}
- elf_gp (abfd) = (gp_val
- + sec->output_section->vma
- + sec->output_offset);
- return true;
-}
+ if (sec != NULL && sec->output_section != NULL)
+ gp_val += sec->output_section->vma + sec->output_offset;
+ elf_gp (abfd) = gp_val;
+ return TRUE;
+}
/* Build all the stubs associated with the current output file. The
stubs are kept in a hash table attached to the main linker hash
functions here. This function is called via hppaelf_finish in the
linker. */
-boolean
+bfd_boolean
elf32_hppa_build_stubs (info)
struct bfd_link_info *info;
{
asection *stub_sec;
struct bfd_hash_table *table;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
- hplink = hppa_link_hash_table (info);
+ htab = hppa_link_hash_table (info);
- for (stub_sec = hplink->stub_bfd->sections;
+ for (stub_sec = htab->stub_bfd->sections;
stub_sec != NULL;
stub_sec = stub_sec->next)
{
- unsigned int size;
+ bfd_size_type size;
/* Allocate memory to hold the linker stubs. */
- size = bfd_section_size (hplink->stub_bfd, stub_sec);
- stub_sec->contents = (unsigned char *) bfd_zalloc (hplink->stub_bfd,
- size);
+ size = stub_sec->_raw_size;
+ stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size);
if (stub_sec->contents == NULL && size != 0)
- return false;
+ return FALSE;
+ stub_sec->_raw_size = 0;
}
/* Build the stubs as directed by the stub hash table. */
- memset (hplink->offset, 0,
- hplink->stub_bfd->section_count * sizeof (bfd_vma));
-
- table = &hplink->stub_hash_table;
+ table = &htab->stub_hash_table;
bfd_hash_traverse (table, hppa_build_one_stub, info);
- return true;
+ return TRUE;
+}
+
+/* Perform a final link. */
+
+static bfd_boolean
+elf32_hppa_final_link (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ /* Invoke the regular ELF linker to do all the work. */
+ if (!bfd_elf32_bfd_final_link (abfd, info))
+ return FALSE;
+
+ /* If we're producing a final executable, sort the contents of the
+ unwind section. */
+ return elf_hppa_sort_unwind (abfd);
}
+/* Record the lowest address for the data and text segments. */
+
+static void
+hppa_record_segment_addr (abfd, section, data)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ asection *section;
+ PTR data;
+{
+ struct elf32_hppa_link_hash_table *htab;
+
+ htab = (struct elf32_hppa_link_hash_table *) data;
+
+ if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
+ {
+ bfd_vma value = section->vma - section->filepos;
+
+ if ((section->flags & SEC_READONLY) != 0)
+ {
+ if (value < htab->text_segment_base)
+ htab->text_segment_base = value;
+ }
+ else
+ {
+ if (value < htab->data_segment_base)
+ htab->data_segment_base = value;
+ }
+ }
+}
/* Perform a relocation as part of a final link. */
static bfd_reloc_status_type
-final_link_relocate (input_section, contents, rel, value, info, sym_sec, h)
+final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h)
asection *input_section;
bfd_byte *contents;
const Elf_Internal_Rela *rel;
bfd_vma value;
- struct bfd_link_info *info;
+ struct elf32_hppa_link_hash_table *htab;
asection *sym_sec;
struct elf32_hppa_link_hash_entry *h;
{
case R_PARISC_PCREL12F:
case R_PARISC_PCREL17F:
case R_PARISC_PCREL22F:
- /* If this is a call to a function defined in another dynamic
- library, or if it is a call to a PIC function in the same
- object, then find the import stub in the stub hash. */
+ /* If this call should go via the plt, find the import stub in
+ the stub hash. */
if (sym_sec == NULL
|| sym_sec->output_section == NULL
- || (h != NULL && h->pic_call))
+ || (h != NULL
+ && h->elf.plt.offset != (bfd_vma) -1
+ && (h->elf.dynindx != -1 || h->pic_call)
+ && !h->plabel))
{
stub_entry = hppa_get_stub_entry (input_section, sym_sec,
- h, rel, info);
+ h, rel, htab);
if (stub_entry != NULL)
{
value = (stub_entry->stub_offset
else if (sym_sec == NULL && h != NULL
&& h->elf.root.type == bfd_link_hash_undefweak)
{
- /* It's OK if undefined weak. Make undefined weak
- branches go nowhere. */
+ /* It's OK if undefined weak. Calls to undefined weak
+ symbols behave as if the "called" function
+ immediately returns. We can thus call to a weak
+ function without first checking whether the function
+ is defined. */
value = location;
- addend = 0;
+ addend = 8;
}
else
- return bfd_reloc_notsupported;
+ return bfd_reloc_undefined;
}
/* Fall thru. */
case R_PARISC_DPREL14R:
case R_PARISC_DPREL14F:
/* For all the DP relative relocations, we need to examine the symbol's
- section. If it's a code section, then "data pointer relative" makes
- no sense. In that case we don't adjust the "value", and for 21 bit
- addil instructions, we change the source addend register from %dp to
- %r0. This situation commonly arises when a variable's "constness"
+ section. If it has no section or if it's a code section, then
+ "data pointer relative" makes no sense. In that case we don't
+ adjust the "value", and for 21 bit addil instructions, we change the
+ source addend register from %dp to %r0. This situation commonly
+ arises for undefined weak symbols and when a variable's "constness"
is declared differently from the way the variable is defined. For
instance: "extern int foo" with foo defined as "const int foo". */
- if (sym_sec == NULL)
- break;
- if ((sym_sec->flags & SEC_CODE) != 0)
+ if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
{
if ((insn & ((0x3f << 26) | (0x1f << 21)))
== (((int) OP_ADDIL << 26) | (27 << 21)))
{
insn &= ~ (0x1f << 21);
-#if 1 /* debug them */
+#if 0 /* debug them. */
(*_bfd_error_handler)
(_("%s(%s+0x%lx): fixing %s"),
- bfd_get_filename (input_bfd),
+ bfd_archive_filename (input_bfd),
input_section->name,
(long) rel->r_offset,
howto->name);
break;
}
- /* Fall thru */
+ /* Fall thru. */
case R_PARISC_DLTIND21L:
case R_PARISC_DLTIND14R:
value -= elf_gp (input_section->output_section->owner);
break;
+ case R_PARISC_SEGREL32:
+ if ((sym_sec->flags & SEC_CODE) != 0)
+ value -= htab->text_segment_base;
+ else
+ value -= htab->data_segment_base;
+ break;
+
default:
break;
}
switch (r_type)
{
case R_PARISC_DIR32:
+ case R_PARISC_DIR14F:
case R_PARISC_DIR17F:
case R_PARISC_PCREL17C:
case R_PARISC_PCREL14F:
r_field = e_fsel;
break;
- case R_PARISC_DIR21L:
+ case R_PARISC_DLTIND21L:
case R_PARISC_PCREL21L:
- case R_PARISC_DPREL21L:
case R_PARISC_PLABEL21L:
- case R_PARISC_DLTIND21L:
+ r_field = e_lsel;
+ break;
+
+ case R_PARISC_DIR21L:
+ case R_PARISC_DPREL21L:
r_field = e_lrsel;
break;
- case R_PARISC_DIR17R:
case R_PARISC_PCREL17R:
- case R_PARISC_DIR14R:
case R_PARISC_PCREL14R:
- case R_PARISC_DPREL14R:
case R_PARISC_PLABEL14R:
case R_PARISC_DLTIND14R:
+ r_field = e_rsel;
+ break;
+
+ case R_PARISC_DIR17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_DPREL14R:
r_field = e_rrsel;
break;
if (value + addend + max_branch_offset >= 2*max_branch_offset)
{
stub_entry = hppa_get_stub_entry (input_section, sym_sec,
- h, rel, info);
+ h, rel, htab);
if (stub_entry == NULL)
- return bfd_reloc_notsupported;
+ return bfd_reloc_undefined;
/* Munge up the value and addend so that we call the stub
rather than the procedure directly. */
{
(*_bfd_error_handler)
(_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
- bfd_get_filename (input_bfd),
+ bfd_archive_filename (input_bfd),
input_section->name,
(long) rel->r_offset,
stub_entry->root.string);
+ bfd_set_error (bfd_error_bad_value);
return bfd_reloc_notsupported;
}
insn = hppa_rebuild_insn (insn, val, r_format);
/* Update the instruction word. */
- bfd_put_32 (input_bfd, (unsigned int) insn, hit_data);
+ bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
return bfd_reloc_ok;
}
-
/* Relocate an HPPA ELF section. */
-static boolean
+static bfd_boolean
elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
contents, relocs, local_syms, local_sections)
bfd *output_bfd;
Elf_Internal_Sym *local_syms;
asection **local_sections;
{
- bfd *dynobj;
bfd_vma *local_got_offsets;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- asection *sreloc;
+
+ if (info->relocateable)
+ return TRUE;
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
- dynobj = elf_hash_table (info)->dynobj;
+ htab = hppa_link_hash_table (info);
local_got_offsets = elf_local_got_offsets (input_bfd);
- hplink = hppa_link_hash_table (info);
- sreloc = NULL;
rel = relocs;
relend = relocs + input_section->reloc_count;
bfd_vma relocation;
bfd_reloc_status_type r;
const char *sym_name;
- boolean pltrel;
+ bfd_boolean plabel;
+ bfd_boolean warned_undef;
r_type = ELF32_R_TYPE (rel->r_info);
if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
{
bfd_set_error (bfd_error_bad_value);
- return false;
+ return FALSE;
}
if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
|| r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
continue;
- r_symndx = ELF32_R_SYM (rel->r_info);
-
- if (info->relocateable)
- {
- /* This is a relocateable link. We don't have to change
- anything, unless the reloc is against a section symbol,
- in which case we have to adjust according to where the
- section symbol winds up in the output section. */
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sym_sec = local_sections[r_symndx];
- rel->r_addend += sym_sec->output_offset;
- }
- }
- continue;
- }
-
/* This is a final link. */
+ r_symndx = ELF32_R_SYM (rel->r_info);
h = NULL;
sym = NULL;
sym_sec = NULL;
+ warned_undef = FALSE;
if (r_symndx < symtab_hdr->sh_info)
{
/* This is a local symbol, h defaults to NULL. */
sym = local_syms + r_symndx;
sym_sec = local_sections[r_symndx];
- relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
- ? 0 : sym->st_value)
- + sym_sec->output_offset
- + sym_sec->output_section->vma);
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel);
}
else
{
else if (h->elf.root.type == bfd_link_hash_undefweak)
;
else if (info->shared && !info->no_undefined
- && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT)
+ && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
+ && h->elf.type != STT_PARISC_MILLI)
{
- if (info->symbolic)
- if (!((*info->callbacks->undefined_symbol)
- (info, h->elf.root.root.string, input_bfd,
- input_section, rel->r_offset, false)))
- return false;
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->elf.root.root.string, input_bfd,
+ input_section, rel->r_offset, FALSE)))
+ return FALSE;
+ warned_undef = TRUE;
}
else
{
if (!((*info->callbacks->undefined_symbol)
(info, h->elf.root.root.string, input_bfd,
- input_section, rel->r_offset, true)))
- return false;
+ input_section, rel->r_offset, TRUE)))
+ return FALSE;
+ warned_undef = TRUE;
}
}
/* Do any required modifications to the relocation value, and
- determine what types of dynamic info we need to output, if
- any. */
- pltrel = 0;
+ determine what types of dynamic info we need to output, if
+ any. */
+ plabel = 0;
switch (r_type)
{
case R_PARISC_DLTIND14F:
case R_PARISC_DLTIND14R:
case R_PARISC_DLTIND21L:
- /* Relocation is to the entry for this symbol in the global
- offset table. */
- if (h != NULL)
+ {
+ bfd_vma off;
+ bfd_boolean do_got = 0;
+
+ /* Relocation is to the entry for this symbol in the
+ global offset table. */
+ if (h != NULL)
+ {
+ bfd_boolean dyn;
+
+ off = h->elf.got.offset;
+ dyn = htab->elf.dynamic_sections_created;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf))
+ {
+ /* If we aren't going to call finish_dynamic_symbol,
+ then we need to handle initialisation of the .got
+ entry and create needed relocs here. Since the
+ offset must always be a multiple of 4, we use the
+ least significant bit to record whether we have
+ initialised it already. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ h->elf.got.offset |= 1;
+ do_got = 1;
+ }
+ }
+ }
+ else
+ {
+ /* Local symbol case. */
+ if (local_got_offsets == NULL)
+ abort ();
+
+ off = local_got_offsets[r_symndx];
+
+ /* The offset must always be a multiple of 4. We use
+ the least significant bit to record whether we have
+ already generated the necessary reloc. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ local_got_offsets[r_symndx] |= 1;
+ do_got = 1;
+ }
+ }
+
+ if (do_got)
+ {
+ if (info->shared)
+ {
+ /* Output a dynamic relocation for this GOT entry.
+ In this case it is relative to the base of the
+ object because the symbol index is zero. */
+ Elf_Internal_Rela outrel;
+ bfd_byte *loc;
+ asection *s = htab->srelgot;
+
+ outrel.r_offset = (off
+ + htab->sgot->output_offset
+ + htab->sgot->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
+ outrel.r_addend = relocation;
+ loc = s->contents;
+ loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ else
+ bfd_put_32 (output_bfd, relocation,
+ htab->sgot->contents + off);
+ }
+
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ /* Add the base of the GOT to the relocation value. */
+ relocation = (off
+ + htab->sgot->output_offset
+ + htab->sgot->output_section->vma);
+ }
+ break;
+
+ case R_PARISC_SEGREL32:
+ /* If this is the first SEGREL relocation, then initialize
+ the segment base values. */
+ if (htab->text_segment_base == (bfd_vma) -1)
+ bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
+ break;
+
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL32:
+ if (htab->elf.dynamic_sections_created)
{
bfd_vma off;
+ bfd_boolean do_plt = 0;
- off = h->elf.got.offset;
- BFD_ASSERT (off != (bfd_vma) -1);
-
- if (! elf_hash_table (info)->dynamic_sections_created
- || (info->shared
- && (info->symbolic || h->elf.dynindx == -1)
- && (h->elf.elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) != 0))
+ /* If we have a global symbol with a PLT slot, then
+ redirect this relocation to it. */
+ if (h != NULL)
{
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or the symbol was forced to be local
- because of a version file. We must initialize
- this entry in the global offset table. Since the
- offset must always be a multiple of 4, we use the
- least significant bit to record whether we have
- initialized it already.
-
- When doing a dynamic link, we create a .rela.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- if ((off & 1) != 0)
- off &= ~1;
- else
+ off = h->elf.plt.offset;
+ if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf))
{
- bfd_put_32 (output_bfd, relocation,
- hplink->sgot->contents + off);
- h->elf.got.offset |= 1;
+ /* In a non-shared link, adjust_dynamic_symbols
+ isn't called for symbols forced local. We
+ need to write out the plt entry here. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ h->elf.plt.offset |= 1;
+ do_plt = 1;
+ }
}
}
+ else
+ {
+ bfd_vma *local_plt_offsets;
- relocation = off;
- }
- else
- {
- /* Local symbol case. */
- bfd_vma off;
+ if (local_got_offsets == NULL)
+ abort ();
- BFD_ASSERT (local_got_offsets != NULL
- && local_got_offsets[r_symndx] != (bfd_vma) -1);
+ local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
+ off = local_plt_offsets[r_symndx];
- off = local_got_offsets[r_symndx];
+ /* As for the local .got entry case, we use the last
+ bit to record whether we've already initialised
+ this local .plt entry. */
+ if ((off & 1) != 0)
+ off &= ~1;
+ else
+ {
+ local_plt_offsets[r_symndx] |= 1;
+ do_plt = 1;
+ }
+ }
- /* The offset must always be a multiple of 4. We use
- the least significant bit to record whether we have
- already generated the necessary reloc. */
- if ((off & 1) != 0)
- off &= ~1;
- else
+ if (do_plt)
{
- bfd_put_32 (output_bfd, relocation,
- hplink->sgot->contents + off);
-
if (info->shared)
{
- /* Output a dynamic SEGREL32 relocation for this
- GOT entry. In this case it is relative to
- the base of the object because the symbol
- index is zero. */
+ /* Output a dynamic IPLT relocation for this
+ PLT entry. */
Elf_Internal_Rela outrel;
- asection *srelgot = hplink->srelgot;
+ bfd_byte *loc;
+ asection *s = htab->srelplt;
outrel.r_offset = (off
- + hplink->sgot->output_offset
- + hplink->sgot->output_section->vma);
- outrel.r_info = ELF32_R_INFO (0, R_PARISC_SEGREL32);
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma);
+ outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
outrel.r_addend = relocation;
- bfd_elf32_swap_reloca_out (output_bfd, &outrel,
- ((Elf32_External_Rela *)
- srelgot->contents
- + srelgot->reloc_count));
- ++srelgot->reloc_count;
+ loc = s->contents;
+ loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
+ }
+ else
+ {
+ bfd_put_32 (output_bfd,
+ relocation,
+ htab->splt->contents + off);
+ bfd_put_32 (output_bfd,
+ elf_gp (htab->splt->output_section->owner),
+ htab->splt->contents + off + 4);
}
-
- local_got_offsets[r_symndx] |= 1;
}
- relocation = off;
- }
-
- /* Add the base of the GOT to the relocation value. */
- relocation += (hplink->sgot->output_offset
- + hplink->sgot->output_section->vma);
- break;
-
- case R_PARISC_PLABEL14R:
- case R_PARISC_PLABEL21L:
- case R_PARISC_PLABEL32:
- /* If we have a global symbol with a PLT slot, then redirect
- this relocation to it. */
- if (h != NULL
- && h->elf.dynindx != -1
- && h->elf.plt.offset != (bfd_vma) -1)
- {
- /* PLABELs contain function pointers. Relocation is
- to the entry for the function in the .plt. The
- magic +2 offset signals to $$dyncall that the
- function pointer is in the .plt and thus has a gp
- pointer too. */
- relocation = (h->elf.plt.offset
- + hplink->splt->output_offset
- + hplink->splt->output_section->vma
- + 2);
- pltrel = 1;
+ if (off >= (bfd_vma) -2)
+ abort ();
+
+ /* PLABELs contain function pointers. Relocation is to
+ the entry for the function in the .plt. The magic +2
+ offset signals to $$dyncall that the function pointer
+ is in the .plt and thus has a gp pointer too.
+ Exception: Undefined PLABELs should have a value of
+ zero. */
+ if (h == NULL
+ || (h->elf.root.type != bfd_link_hash_undefweak
+ && h->elf.root.type != bfd_link_hash_undefined))
+ {
+ relocation = (off
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma
+ + 2);
+ }
+ plabel = 1;
}
/* Fall through and possibly emit a dynamic relocation. */
case R_PARISC_DIR17F:
case R_PARISC_DIR17R:
+ case R_PARISC_DIR14F:
case R_PARISC_DIR14R:
case R_PARISC_DIR21L:
case R_PARISC_DPREL14F:
case R_PARISC_DPREL14R:
case R_PARISC_DPREL21L:
case R_PARISC_DIR32:
+ /* r_symndx will be zero only for relocs against symbols
+ from removed linkonce sections, or sections discarded by
+ a linker script. */
+ if (r_symndx == 0
+ || (input_section->flags & SEC_ALLOC) == 0)
+ break;
+
/* The reloc types handled here and this conditional
- expression must match the code in check_relocs and
- hppa_discard_copies. ie. We need exactly the same
- condition as in check_relocs, with some extra conditions
- (dynindx test in this case) to cater for relocs removed
- by hppa_discard_copies. */
- if ((input_section->flags & SEC_ALLOC) != 0
- && info->shared
-#if RELATIVE_DYNAMIC_RELOCS
- && (is_absolute_reloc (r_type)
- || ((!info->symbolic
- || (h != NULL
- && ((h->elf.elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0
- || h->elf.root.type == bfd_link_hash_defweak)))
- && (h == NULL || h->elf.dynindx != -1)))
-#endif
- )
+ expression must match the code in ..check_relocs and
+ allocate_dynrelocs. ie. We need exactly the same condition
+ as in ..check_relocs, with some extra conditions (dynindx
+ test in this case) to cater for relocs removed by
+ allocate_dynrelocs. If you squint, the non-shared test
+ here does indeed match the one in ..check_relocs, the
+ difference being that here we test DEF_DYNAMIC as well as
+ !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
+ which is why we can't use just that test here.
+ Conversely, DEF_DYNAMIC can't be used in check_relocs as
+ there all files have not been loaded. */
+ if ((info->shared
+ && (IS_ABSOLUTE_RELOC (r_type)
+ || (h != NULL
+ && h->elf.dynindx != -1
+ && (!info->symbolic
+ || (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
+ || (!info->shared
+ && h != NULL
+ && h->elf.dynindx != -1
+ && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
+ && (((h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_DYNAMIC) != 0
+ && (h->elf.elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0)
+ || h->elf.root.type == bfd_link_hash_undefweak
+ || h->elf.root.type == bfd_link_hash_undefined)))
{
Elf_Internal_Rela outrel;
- boolean skip;
+ bfd_boolean skip;
+ asection *sreloc;
+ bfd_byte *loc;
/* When generating a shared object, these relocations
are copied into the output file to be resolved at run
time. */
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return false;
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
-
- outrel.r_offset = rel->r_offset;
outrel.r_addend = rel->r_addend;
- skip = false;
- if (elf_section_data (input_section)->stab_info != NULL)
- {
- bfd_vma off;
-
- off = (_bfd_stab_section_offset
- (output_bfd, &elf_hash_table (info)->stab_info,
- input_section,
- &elf_section_data (input_section)->stab_info,
- rel->r_offset));
- if (off == (bfd_vma) -1)
- skip = true;
- outrel.r_offset = off;
- }
-
+ outrel.r_offset =
+ _bfd_elf_section_offset (output_bfd, info, input_section,
+ rel->r_offset);
+ skip = (outrel.r_offset == (bfd_vma) -1
+ || outrel.r_offset == (bfd_vma) -2);
outrel.r_offset += (input_section->output_offset
+ input_section->output_section->vma);
{
memset (&outrel, 0, sizeof (outrel));
}
- else if (!pltrel
- && h != NULL
- && ((!info->symbolic && h->elf.dynindx != -1)
+ else if (h != NULL
+ && h->elf.dynindx != -1
+ && (plabel
+ || !IS_ABSOLUTE_RELOC (r_type)
+ || !info->shared
+ || !info->symbolic
|| (h->elf.elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))
{
/* Add the absolute offset of the symbol. */
outrel.r_addend += relocation;
- if (sym_sec != NULL
+ /* Global plabels need to be processed by the
+ dynamic linker so that functions have at most one
+ fptr. For this reason, we need to differentiate
+ between global and local plabels, which we do by
+ providing the function symbol for a global plabel
+ reloc, and no symbol for local plabels. */
+ if (! plabel
+ && sym_sec != NULL
&& sym_sec->output_section != NULL
&& ! bfd_is_abs_section (sym_sec))
{
outrel.r_info = ELF32_R_INFO (indx, r_type);
}
+#if 0
+ /* EH info can cause unaligned DIR32 relocs.
+ Tweak the reloc type for the dynamic linker. */
+ if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0)
+ outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info),
+ R_PARISC_DIR32U);
+#endif
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (sreloc == NULL)
+ abort ();
- bfd_elf32_swap_reloca_out (output_bfd, &outrel,
- ((Elf32_External_Rela *)
- sreloc->contents
- + sreloc->reloc_count));
- ++sreloc->reloc_count;
+ loc = sreloc->contents;
+ loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
}
break;
}
r = final_link_relocate (input_section, contents, rel, relocation,
- info, sym_sec, h);
+ htab, sym_sec, h);
if (r == bfd_reloc_ok)
continue;
symtab_hdr->sh_link,
sym->st_name);
if (sym_name == NULL)
- return false;
+ return FALSE;
if (*sym_name == '\0')
sym_name = bfd_section_name (input_bfd, sym_sec);
}
if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported)
{
- (*_bfd_error_handler)
- (_("%s(%s+0x%lx): cannot handle %s for %s"),
- bfd_get_filename (input_bfd),
- input_section->name,
- (long) rel->r_offset,
- howto->name,
- sym_name);
+ if (r == bfd_reloc_notsupported || !warned_undef)
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): cannot handle %s for %s"),
+ bfd_archive_filename (input_bfd),
+ input_section->name,
+ (long) rel->r_offset,
+ howto->name,
+ sym_name);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
}
else
{
if (!((*info->callbacks->reloc_overflow)
(info, sym_name, howto->name, (bfd_vma) 0,
input_bfd, input_section, rel->r_offset)))
- return false;
+ return FALSE;
}
}
- return true;
+ return TRUE;
}
-
/* Finish up dynamic symbol handling. We set the contents of various
dynamic sections here. */
-static boolean
+static bfd_boolean
elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym)
bfd *output_bfd;
struct bfd_link_info *info;
struct elf_link_hash_entry *h;
Elf_Internal_Sym *sym;
{
- struct elf32_hppa_link_hash_table *hplink;
- bfd *dynobj;
-
- hplink = hppa_link_hash_table (info);
- dynobj = elf_hash_table (info)->dynobj;
+ struct elf32_hppa_link_hash_table *htab;
- /* Millicode symbols should not be put in the dynamic
- symbol table under any circumstances. */
- if (ELF_ST_TYPE (sym->st_info) == STT_PARISC_MILLI)
- h->dynindx = -1;
+ htab = hppa_link_hash_table (info);
if (h->plt.offset != (bfd_vma) -1)
{
bfd_vma value;
- Elf_Internal_Rela rel;
+
+ if (h->plt.offset & 1)
+ abort ();
/* This symbol has an entry in the procedure linkage table. Set
it up.
The format of a plt entry is
- <funcaddr> <__gp>. */
-
- /* We do not actually care about the value in the PLT entry if
- we are creating a shared library and the symbol is still
- undefined; We create a dynamic relocation to fill in the
- correct value. */
+ <funcaddr>
+ <__gp>
+ */
value = 0;
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
+ h->root.u.def.section->output_section->vma);
}
- bfd_put_32 (hplink->splt->owner, value,
- hplink->splt->contents + h->plt.offset);
- value = elf_gp (hplink->splt->output_section->owner);
- bfd_put_32 (hplink->splt->owner, value,
- hplink->splt->contents + h->plt.offset + 4);
-
- if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call
- && h->dynindx != -1)
+ if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call)
{
+ Elf_Internal_Rela rel;
+ bfd_byte *loc;
+
/* Create a dynamic IPLT relocation for this entry. */
rel.r_offset = (h->plt.offset
- + hplink->splt->output_offset
- + hplink->splt->output_section->vma);
- rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT);
- rel.r_addend = 0;
+ + htab->splt->output_offset
+ + htab->splt->output_section->vma);
+ if (h->dynindx != -1)
+ {
+ rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT);
+ rel.r_addend = 0;
+ }
+ else
+ {
+ /* This symbol has been marked to become local, and is
+ used by a plabel so must be kept in the .plt. */
+ rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
+ rel.r_addend = value;
+ }
- bfd_elf32_swap_reloca_out (hplink->splt->output_section->owner,
- &rel,
- ((Elf32_External_Rela *)
- hplink->srelplt->contents
- + hplink->srelplt->reloc_count));
- hplink->srelplt->reloc_count++;
+ loc = htab->srelplt->contents;
+ loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (htab->splt->output_section->owner,
+ &rel, loc);
+ }
+ else
+ {
+ bfd_put_32 (htab->splt->owner,
+ value,
+ htab->splt->contents + h->plt.offset);
+ bfd_put_32 (htab->splt->owner,
+ elf_gp (htab->splt->output_section->owner),
+ htab->splt->contents + h->plt.offset + 4);
}
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
if (h->got.offset != (bfd_vma) -1)
{
Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol has an entry in the global offset table. Set it
up. */
rel.r_offset = ((h->got.offset &~ (bfd_vma) 1)
- + hplink->sgot->output_offset
- + hplink->sgot->output_section->vma);
-
- /* If this is a static link, or it is a -Bsymbolic link and the
- symbol is defined locally or was forced to be local because
- of a version file, we just want to emit a RELATIVE reloc.
- The entry in the global offset table will already have been
- initialized in the relocate_section function. */
- if (! elf_hash_table (info)->dynamic_sections_created
- || (info->shared
- && (info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
- {
- rel.r_info = ELF32_R_INFO (0, R_PARISC_SEGREL32);
+ + htab->sgot->output_offset
+ + htab->sgot->output_section->vma);
+
+ /* If this is a -Bsymbolic link and the symbol is defined
+ locally or was forced to be local because of a version file,
+ we just want to emit a RELATIVE reloc. The entry in the
+ global offset table will already have been initialized in the
+ relocate_section function. */
+ if (info->shared
+ && (info->symbolic || h->dynindx == -1)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
+ {
+ rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
rel.r_addend = (h->root.u.def.value
+ h->root.u.def.section->output_offset
+ h->root.u.def.section->output_section->vma);
}
else
{
- BFD_ASSERT((h->got.offset & 1) == 0);
+ if ((h->got.offset & 1) != 0)
+ abort ();
bfd_put_32 (output_bfd, (bfd_vma) 0,
- hplink->sgot->contents + h->got.offset);
+ htab->sgot->contents + h->got.offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32);
rel.r_addend = 0;
}
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- ((Elf32_External_Rela *)
- hplink->srelgot->contents
- + hplink->srelgot->reloc_count));
- ++hplink->srelgot->reloc_count;
+ loc = htab->srelgot->contents;
+ loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
}
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
{
asection *s;
Elf_Internal_Rela rel;
+ bfd_byte *loc;
/* This symbol needs a copy reloc. Set it up. */
- BFD_ASSERT (h->dynindx != -1
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak));
+ if (! (h->dynindx != -1
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)))
+ abort ();
- s = hplink->srelbss;
+ s = htab->srelbss;
rel.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_offset
+ h->root.u.def.section->output_section->vma);
rel.r_addend = 0;
rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY);
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- ((Elf32_External_Rela *) s->contents
- + s->reloc_count));
- ++s->reloc_count;
+ loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
}
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
sym->st_shndx = SHN_ABS;
}
- return true;
+ return TRUE;
}
+/* Used to decide how to sort relocs in an optimal manner for the
+ dynamic linker, before writing them out. */
+
+static enum elf_reloc_type_class
+elf32_hppa_reloc_type_class (rela)
+ const Elf_Internal_Rela *rela;
+{
+ if (ELF32_R_SYM (rela->r_info) == 0)
+ return reloc_class_relative;
+
+ switch ((int) ELF32_R_TYPE (rela->r_info))
+ {
+ case R_PARISC_IPLT:
+ return reloc_class_plt;
+ case R_PARISC_COPY:
+ return reloc_class_copy;
+ default:
+ return reloc_class_normal;
+ }
+}
/* Finish up the dynamic sections. */
-static boolean
+static bfd_boolean
elf32_hppa_finish_dynamic_sections (output_bfd, info)
bfd *output_bfd;
struct bfd_link_info *info;
{
bfd *dynobj;
- struct elf32_hppa_link_hash_table *hplink;
+ struct elf32_hppa_link_hash_table *htab;
asection *sdyn;
- dynobj = elf_hash_table (info)->dynobj;
- hplink = hppa_link_hash_table (info);
+ htab = hppa_link_hash_table (info);
+ dynobj = htab->elf.dynobj;
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
- if (elf_hash_table (info)->dynamic_sections_created)
+ if (htab->elf.dynamic_sections_created)
{
Elf32_External_Dyn *dyncon, *dynconend;
- BFD_ASSERT (sdyn != NULL);
+ if (sdyn == NULL)
+ abort ();
dyncon = (Elf32_External_Dyn *) sdyn->contents;
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
switch (dyn.d_tag)
{
default:
- break;
+ continue;
case DT_PLTGOT:
/* Use PLTGOT to set the GOT register. */
dyn.d_un.d_ptr = elf_gp (output_bfd);
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_JMPREL:
- s = hplink->srelplt;
+ s = htab->srelplt;
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
break;
case DT_PLTRELSZ:
- s = hplink->srelplt;
- if (s->_cooked_size != 0)
- dyn.d_un.d_val = s->_cooked_size;
- else
- dyn.d_un.d_val = s->_raw_size;
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
+ s = htab->srelplt;
+ dyn.d_un.d_val = s->_raw_size;
+ break;
+
+ case DT_RELASZ:
+ /* Don't count procedure linkage table relocs in the
+ overall reloc count. */
+ s = htab->srelplt;
+ if (s == NULL)
+ continue;
+ dyn.d_un.d_val -= s->_raw_size;
+ break;
+
+ case DT_RELA:
+ /* We may not be using the standard ELF linker script.
+ If .rela.plt is the first .rela section, we adjust
+ DT_RELA to not include it. */
+ s = htab->srelplt;
+ if (s == NULL)
+ continue;
+ if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
+ continue;
+ dyn.d_un.d_ptr += s->_raw_size;
break;
}
+
+ bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
}
}
- /* Fill in the first entry in the global offset table.
- We use it to point to our dynamic section, if we have one. */
- if (hplink->sgot->_raw_size != 0)
+ if (htab->sgot != NULL && htab->sgot->_raw_size != 0)
{
+ /* Fill in the first entry in the global offset table.
+ We use it to point to our dynamic section, if we have one. */
bfd_put_32 (output_bfd,
(sdyn != NULL
? sdyn->output_section->vma + sdyn->output_offset
: (bfd_vma) 0),
- hplink->sgot->contents);
+ htab->sgot->contents);
+
+ /* The second entry is reserved for use by the dynamic linker. */
+ memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
/* Set .got entry size. */
- elf_section_data (hplink->sgot->output_section)->this_hdr.sh_entsize = 4;
+ elf_section_data (htab->sgot->output_section)
+ ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
}
- /* Set plt entry size. */
- if (hplink->splt->_raw_size != 0)
- elf_section_data (hplink->splt->output_section)->this_hdr.sh_entsize = 8;
+ if (htab->splt != NULL && htab->splt->_raw_size != 0)
+ {
+ /* Set plt entry size. */
+ elf_section_data (htab->splt->output_section)
+ ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
+
+ if (htab->need_plt_stub)
+ {
+ /* Set up the .plt stub. */
+ memcpy (htab->splt->contents
+ + htab->splt->_raw_size - sizeof (plt_stub),
+ plt_stub, sizeof (plt_stub));
+
+ if ((htab->splt->output_offset
+ + htab->splt->output_section->vma
+ + htab->splt->_raw_size)
+ != (htab->sgot->output_offset
+ + htab->sgot->output_section->vma))
+ {
+ (*_bfd_error_handler)
+ (_(".got section not immediately after .plt section"));
+ return FALSE;
+ }
+ }
+ }
- return true;
+ return TRUE;
}
+/* Tweak the OSABI field of the elf header. */
+
+static void
+elf32_hppa_post_process_headers (abfd, link_info)
+ bfd *abfd;
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED;
+{
+ Elf_Internal_Ehdr * i_ehdrp;
+
+ i_ehdrp = elf_elfheader (abfd);
+
+ if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
+ {
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
+ }
+ else
+ {
+ i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
+ }
+}
/* Called when writing out an object file to decide the type of a
symbol. */
return type;
}
-
/* Misc BFD support code. */
#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
/* Stuff for the BFD linker. */
-#define bfd_elf32_bfd_final_link _bfd_elf32_gc_common_final_link
+#define bfd_elf32_bfd_final_link elf32_hppa_final_link
#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
+#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
+#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
#define elf_backend_check_relocs elf32_hppa_check_relocs
#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
#define elf_backend_fake_sections elf_hppa_fake_sections
#define elf_backend_relocate_section elf32_hppa_relocate_section
+#define elf_backend_hide_symbol elf32_hppa_hide_symbol
#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
#define elf_backend_object_p elf32_hppa_object_p
#define elf_backend_final_write_processing elf_hppa_final_write_processing
+#define elf_backend_post_process_headers elf32_hppa_post_process_headers
#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
+#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
#define elf_backend_can_gc_sections 1
+#define elf_backend_can_refcount 1
#define elf_backend_plt_alignment 2
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 0
#define elf_backend_want_plt_sym 0
-#define elf_backend_got_header_size 4
+#define elf_backend_got_header_size 8
+#define elf_backend_rela_normal 1
#define TARGET_BIG_SYM bfd_elf32_hppa_vec
#define TARGET_BIG_NAME "elf32-hppa"
#define ELF_MAXPAGESIZE 0x1000
#include "elf32-target.h"
+
+#undef TARGET_BIG_SYM
+#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
+#undef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "elf32-hppa-linux"
+
+#define INCLUDED_TARGET_FILE 1
+#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff