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Diffstat (limited to 'bfd/elf32-xstormy16.c')
-rw-r--r--bfd/elf32-xstormy16.c244
1 files changed, 99 insertions, 145 deletions
diff --git a/bfd/elf32-xstormy16.c b/bfd/elf32-xstormy16.c
index d8c4e11..1341a44 100644
--- a/bfd/elf32-xstormy16.c
+++ b/bfd/elf32-xstormy16.c
@@ -1,21 +1,22 @@
-/* XSTORMY16-specific support for 32-bit ELF.
- Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Xstormy16-specific support for 32-bit ELF.
+ Copyright 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
-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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
+ USA. */
#include "bfd.h"
#include "sysdep.h"
@@ -24,38 +25,48 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#include "elf/xstormy16.h"
#include "libiberty.h"
-/* Forward declarations. */
-static reloc_howto_type * xstormy16_reloc_type_lookup
- PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
-static void xstormy16_info_to_howto_rela
- PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static bfd_reloc_status_type xstormy16_elf_24_reloc
- PARAMS ((bfd *abfd, arelent *reloc_entry, asymbol *symbol,
- PTR data, asection *input_section, bfd *output_bfd,
- char **error_message));
-static bfd_boolean xstormy16_elf_check_relocs
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static bfd_boolean xstormy16_relax_plt_check
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static bfd_boolean xstormy16_relax_plt_realloc
- PARAMS ((struct elf_link_hash_entry *, PTR));
-static bfd_boolean xstormy16_elf_relax_section
- PARAMS ((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
- bfd_boolean *again));
-static bfd_boolean xstormy16_elf_always_size_sections
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean xstormy16_elf_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static bfd_boolean xstormy16_elf_finish_dynamic_sections
- PARAMS((bfd *, struct bfd_link_info *));
-static bfd_boolean xstormy16_elf_gc_sweep_hook
- PARAMS ((bfd *, struct bfd_link_info *, asection *,
- const Elf_Internal_Rela *));
-static asection * xstormy16_elf_gc_mark_hook
- PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
- struct elf_link_hash_entry *, Elf_Internal_Sym *));
+/* Handle the R_XSTORMY16_24 reloc, which has an odd bit arrangement. */
+
+static bfd_reloc_status_type
+xstormy16_elf_24_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
+{
+ bfd_vma relocation, x;
+
+ if (output_bfd != NULL)
+ {
+ reloc_entry->address += input_section->output_offset;
+ return bfd_reloc_ok;
+ }
+
+ if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
+ return bfd_reloc_outofrange;
+
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
+ x &= 0x0000ff00;
+ x |= relocation & 0xff;
+ x |= (relocation << 8) & 0xffff0000;
+ bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address);
+
+ if (relocation & ~ (bfd_vma) 0xffffff)
+ return bfd_reloc_overflow;
+
+ return bfd_reloc_ok;
+}
static reloc_howto_type xstormy16_elf_howto_table [] =
{
@@ -238,7 +249,7 @@ static reloc_howto_type xstormy16_elf_howto_table [] =
0, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
-
+
/* A 12 bit absolute relocation. */
HOWTO (R_XSTORMY16_12, /* type */
0, /* rightshift */
@@ -318,9 +329,8 @@ static const reloc_map xstormy16_reloc_map [] =
};
static reloc_howto_type *
-xstormy16_reloc_type_lookup (abfd, code)
- bfd * abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+xstormy16_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
unsigned int i;
@@ -341,10 +351,9 @@ xstormy16_reloc_type_lookup (abfd, code)
/* Set the howto pointer for an XSTORMY16 ELF reloc. */
static void
-xstormy16_info_to_howto_rela (abfd, cache_ptr, dst)
- bfd * abfd ATTRIBUTE_UNUSED;
- arelent * cache_ptr;
- Elf_Internal_Rela * dst;
+xstormy16_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
+ arelent * cache_ptr,
+ Elf_Internal_Rela * dst)
{
unsigned int r_type = ELF32_R_TYPE (dst->r_info);
@@ -357,51 +366,6 @@ xstormy16_info_to_howto_rela (abfd, cache_ptr, dst)
else
abort ();
}
-
-/* Handle the R_XSTORMY16_24 reloc, which has an odd bit arrangement. */
-
-static bfd_reloc_status_type
-xstormy16_elf_24_reloc (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
-{
- bfd_vma relocation, x;
-
- if (output_bfd != NULL)
- {
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
- }
-
- if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
- return bfd_reloc_outofrange;
-
- if (bfd_is_com_section (symbol->section))
- relocation = 0;
- else
- relocation = symbol->value;
-
- relocation += symbol->section->output_section->vma;
- relocation += symbol->section->output_offset;
- relocation += reloc_entry->addend;
-
- x = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
- x &= 0x0000ff00;
- x |= relocation & 0xff;
- x |= (relocation << 8) & 0xffff0000;
- bfd_put_32 (abfd, x, (bfd_byte *) data + reloc_entry->address);
-
- if (relocation & ~ (bfd_vma) 0xffffff)
- return bfd_reloc_overflow;
-
- return bfd_reloc_ok;
-}
/* We support 16-bit pointers to code above 64k by generating a thunk
below 64k containing a JMPF instruction to the final address. We
@@ -410,11 +374,10 @@ xstormy16_elf_24_reloc (abfd, reloc_entry, symbol, data, input_section,
sections will fall in the address space. */
static bfd_boolean
-xstormy16_elf_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+xstormy16_elf_check_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
const Elf_Internal_Rela *rel, *relend;
struct elf_link_hash_entry **sym_hashes;
@@ -495,7 +458,7 @@ xstormy16_elf_check_relocs (abfd, info, sec, relocs)
unsigned int i;
size = symtab_hdr->sh_info * sizeof (bfd_vma);
- local_plt_offsets = (bfd_vma *) bfd_alloc (abfd, size);
+ local_plt_offsets = bfd_alloc (abfd, size);
if (local_plt_offsets == NULL)
return FALSE;
elf_local_got_offsets (abfd) = local_plt_offsets;
@@ -542,9 +505,7 @@ struct relax_plt_data
};
static bfd_boolean
-xstormy16_relax_plt_check (h, xdata)
- struct elf_link_hash_entry *h;
- PTR xdata;
+xstormy16_relax_plt_check (struct elf_link_hash_entry *h, void * xdata)
{
struct relax_plt_data *data = (struct relax_plt_data *) xdata;
@@ -578,9 +539,7 @@ xstormy16_relax_plt_check (h, xdata)
previously had a plt entry, give it a new entry offset. */
static bfd_boolean
-xstormy16_relax_plt_realloc (h, xdata)
- struct elf_link_hash_entry *h;
- PTR xdata;
+xstormy16_relax_plt_realloc (struct elf_link_hash_entry *h, void * xdata)
{
bfd_vma *entry = (bfd_vma *) xdata;
@@ -597,11 +556,10 @@ xstormy16_relax_plt_realloc (h, xdata)
}
static bfd_boolean
-xstormy16_elf_relax_section (dynobj, splt, info, again)
- bfd *dynobj;
- asection *splt;
- struct bfd_link_info *info;
- bfd_boolean *again;
+xstormy16_elf_relax_section (bfd *dynobj,
+ asection *splt,
+ struct bfd_link_info *info,
+ bfd_boolean *again)
{
struct relax_plt_data relax_plt_data;
bfd *ibfd;
@@ -726,9 +684,8 @@ xstormy16_elf_relax_section (dynobj, splt, info, again)
}
static bfd_boolean
-xstormy16_elf_always_size_sections (output_bfd, info)
- bfd *output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
+xstormy16_elf_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *splt;
@@ -743,7 +700,7 @@ xstormy16_elf_always_size_sections (output_bfd, info)
splt = bfd_get_section_by_name (dynobj, ".plt");
BFD_ASSERT (splt != NULL);
- splt->contents = (bfd_byte *) bfd_zalloc (dynobj, splt->size);
+ splt->contents = bfd_zalloc (dynobj, splt->size);
if (splt->contents == NULL)
return FALSE;
@@ -781,16 +738,14 @@ xstormy16_elf_always_size_sections (output_bfd, info)
accordingly. */
static bfd_boolean
-xstormy16_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
- bfd * output_bfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info;
- bfd * input_bfd;
- asection * input_section;
- bfd_byte * contents;
- Elf_Internal_Rela * relocs;
- Elf_Internal_Sym * local_syms;
- asection ** local_sections;
+xstormy16_elf_relocate_section (bfd * output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info * info,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
+ Elf_Internal_Rela * relocs,
+ Elf_Internal_Sym * local_syms,
+ asection ** local_sections)
{
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
@@ -934,7 +889,7 @@ xstormy16_elf_relocate_section (output_bfd, info, input_bfd, input_section,
if (r != bfd_reloc_ok)
{
- const char * msg = (const char *) NULL;
+ const char * msg = NULL;
switch (r)
{
@@ -982,9 +937,8 @@ xstormy16_elf_relocate_section (output_bfd, info, input_bfd, input_section,
/* This must exist if dynobj is ever set. */
static bfd_boolean
-xstormy16_elf_finish_dynamic_sections (abfd, info)
- bfd *abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info *info;
+xstormy16_elf_finish_dynamic_sections (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
{
bfd *dynobj;
asection *splt;
@@ -997,9 +951,11 @@ xstormy16_elf_finish_dynamic_sections (abfd, info)
{
bfd_byte *contents = splt->contents;
unsigned int i, size = splt->size;
+
for (i = 0; i < size; i += 4)
{
unsigned int x = bfd_get_32 (dynobj, contents + i);
+
BFD_ASSERT (x != 0);
}
}
@@ -1011,12 +967,11 @@ xstormy16_elf_finish_dynamic_sections (abfd, info)
relocation. */
static asection *
-xstormy16_elf_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;
- Elf_Internal_Sym * sym;
+xstormy16_elf_gc_mark_hook (asection * sec,
+ struct bfd_link_info * info ATTRIBUTE_UNUSED,
+ Elf_Internal_Rela * rel,
+ struct elf_link_hash_entry * h,
+ Elf_Internal_Sym * sym)
{
if (h != NULL)
{
@@ -1050,11 +1005,10 @@ xstormy16_elf_gc_mark_hook (sec, info, rel, h, sym)
/* Update the got entry reference counts for the section being removed. */
static bfd_boolean
-xstormy16_elf_gc_sweep_hook (abfd, info, sec, relocs)
- bfd * abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- asection * sec ATTRIBUTE_UNUSED;
- const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
+xstormy16_elf_gc_sweep_hook (bfd * abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info * info ATTRIBUTE_UNUSED,
+ asection * sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)
{
return TRUE;
}
generated by cgit v1.1 at 2024-11-23 08:28:26 +0000