/* IQ2000-specific support for 32-bit ELF.
Copyright (C) 2003, 2004 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., 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"
/* Forward declarations. */
-/* Private relocation functions. */
-static bfd_reloc_status_type iq2000_elf_relocate_hi16 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
-static reloc_howto_type * iq2000_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type));
-static void iq2000_info_to_howto_rela PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
-static bfd_boolean iq2000_elf_relocate_section PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
-static bfd_reloc_status_type iq2000_final_link_relocate PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma));
-static bfd_boolean iq2000_elf_gc_sweep_hook PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
-static asection * iq2000_elf_gc_mark_hook PARAMS ((asection *sec, struct bfd_link_info *, Elf_Internal_Rela *, struct elf_link_hash_entry *, Elf_Internal_Sym *));
-static reloc_howto_type * iq2000_reloc_type_lookup PARAMS ((bfd *, bfd_reloc_code_real_type));
-static int elf32_iq2000_machine PARAMS ((bfd *));
-static bfd_boolean iq2000_elf_object_p PARAMS ((bfd *));
-static bfd_boolean iq2000_elf_set_private_flags PARAMS ((bfd *, flagword));
-static bfd_boolean iq2000_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
-static bfd_boolean iq2000_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
-static bfd_boolean iq2000_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
-static bfd_boolean iq2000_elf_check_relocs PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
-static bfd_reloc_status_type iq2000_elf_howto_hi16_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+static bfd_reloc_status_type iq2000_elf_howto_hi16_reloc (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
\f
static reloc_howto_type iq2000_elf_howto_table [] =
};
static bfd_reloc_status_type
-iq2000_elf_howto_hi16_reloc (abfd,
- reloc_entry,
- symbol,
- data,
- input_section,
- output_bfd,
- error_message)
- bfd *abfd ATTRIBUTE_UNUSED;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message ATTRIBUTE_UNUSED;
+iq2000_elf_howto_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
bfd_reloc_status_type ret;
bfd_vma relocation;
- /* If we're relocating, and this an external symbol, we don't want
- to change anything. */
+ /* If we're relocating and this an external symbol,
+ we don't want to change anything. */
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& reloc_entry->addend == 0)
relocation += symbol->section->output_offset;
relocation += reloc_entry->addend;
- /* if %lo will have sign-extension, compensate by add 0x10000 to hi portion */
+ /* If %lo will have sign-extension, compensate by add 0x10000 to hi portion. */
if (relocation & 0x8000)
reloc_entry->addend += 0x10000;
ret = bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
- /* put it back the way it was */
+ /* Put it back the way it was. */
if (relocation & 0x8000)
reloc_entry->addend -= 0x10000;
}
static bfd_reloc_status_type
-iq2000_elf_relocate_hi16 (input_bfd, relhi, contents, value)
- bfd *input_bfd;
- Elf_Internal_Rela *relhi;
- bfd_byte *contents;
- bfd_vma value;
+iq2000_elf_relocate_hi16 (bfd *input_bfd,
+ Elf_Internal_Rela *relhi,
+ bfd_byte *contents,
+ bfd_vma value)
{
bfd_vma insn;
insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
value += relhi->r_addend;
- value &= 0x7fffffff; /* mask off top-bit which is Harvard mask bit */
+ value &= 0x7fffffff; /* Mask off top-bit which is Harvard mask bit. */
- /* if top-bit of %lo value is on, this means that %lo will
- sign-propagate and so we compensate by adding 1 to %hi value */
+ /* If top-bit of %lo value is on, this means that %lo will
+ sign-propagate and so we compensate by adding 1 to %hi value. */
if (value & 0x8000)
value += 0x10000;
routines. */
static bfd_reloc_status_type
-iq2000_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation)
- reloc_howto_type * howto;
- bfd * input_bfd;
- asection * input_section;
- bfd_byte * contents;
- Elf_Internal_Rela * rel;
- bfd_vma relocation;
+iq2000_final_link_relocate (reloc_howto_type * howto,
+ bfd * input_bfd,
+ asection * input_section,
+ bfd_byte * contents,
+ Elf_Internal_Rela * rel,
+ bfd_vma relocation)
{
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
/* Set the howto pointer for a IQ2000 ELF reloc. */
static void
-iq2000_info_to_howto_rela (abfd, cache_ptr, dst)
- bfd * abfd ATTRIBUTE_UNUSED;
- arelent * cache_ptr;
- Elf_Internal_Rela * dst;
+iq2000_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
+ arelent * cache_ptr,
+ Elf_Internal_Rela * dst)
{
unsigned int r_type;
virtual table relocs for gc. */
static bfd_boolean
-iq2000_elf_check_relocs (abfd, info, sec, relocs)
- bfd *abfd;
- struct bfd_link_info *info;
- asection *sec;
- const Elf_Internal_Rela *relocs;
+iq2000_elf_check_relocs (bfd *abfd,
+ struct bfd_link_info *info,
+ asection *sec,
+ const Elf_Internal_Rela *relocs)
{
Elf_Internal_Shdr *symtab_hdr;
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
- sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
+ sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
switch (ELF32_R_TYPE (rel->r_info))
{
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
+ /* This relocation describes the C++ object vtable
+ hierarchy. Reconstruct it for later use during GC. */
case R_IQ2000_GNU_VTINHERIT:
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
+ /* This relocation describes which C++ vtable entries
+ are actually used. Record for later use during GC. */
case R_IQ2000_GNU_VTENTRY:
if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
case R_IQ2000_32:
- /* For debug section, change to special harvard-aware relocations */
+ /* For debug section, change to special harvard-aware relocations. */
if (memcmp (sec->name, ".debug", 6) == 0
|| memcmp (sec->name, ".stab", 5) == 0
|| memcmp (sec->name, ".eh_frame", 9) == 0)
accordingly. */
static bfd_boolean
-iq2000_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;
+iq2000_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;
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
-#ifdef DEBUG
- fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
- sec->name, name, sym->st_name,
- sec->output_section->vma, sec->output_offset,
- sym->st_value, rel->r_addend);
-#endif
}
else
{
removed. */
static bfd_boolean
-iq2000_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;
+iq2000_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;
}
relocation. */
static asection *
-iq2000_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;
+iq2000_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)
+ if (h == NULL)
+ return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+
+ switch (ELF32_R_TYPE (rel->r_info))
{
- switch (ELF32_R_TYPE (rel->r_info))
- {
- case R_IQ2000_GNU_VTINHERIT:
- case R_IQ2000_GNU_VTENTRY:
- break;
+ case R_IQ2000_GNU_VTINHERIT:
+ case R_IQ2000_GNU_VTENTRY:
+ break;
- default:
- switch (h->root.type)
- {
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- return h->root.u.def.section;
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
- case bfd_link_hash_common:
- return h->root.u.c.p->section;
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
- default:
- break;
- }
+ default:
+ break;
}
}
- else
- return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
return NULL;
}
/* Return the MACH for an e_flags value. */
static int
-elf32_iq2000_machine (abfd)
- bfd *abfd;
+elf32_iq2000_machine (bfd *abfd)
{
switch (elf_elfheader (abfd)->e_flags & EF_IQ2000_CPU_MASK)
{
- case EF_IQ2000_CPU_IQ2000: return bfd_mach_iq2000;
- case EF_IQ2000_CPU_IQ10: return bfd_mach_iq10;
- }
+ case EF_IQ2000_CPU_IQ10:
+ return bfd_mach_iq10;
- return bfd_mach_iq2000;
+ case EF_IQ2000_CPU_IQ2000:
+ default:
+ return bfd_mach_iq2000;
+ }
}
\f
/* Function to set the ELF flag bits. */
static bfd_boolean
-iq2000_elf_set_private_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
+iq2000_elf_set_private_flags (bfd *abfd, flagword flags)
{
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
/* Copy backend specific data from one object module to another. */
static bfd_boolean
-iq2000_elf_copy_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+iq2000_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
{
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
}
-/* Merge backend specific data from an object file to the output
- object file when linking. */
+/* Merge backend specific data from an object
+ file to the output object file when linking. */
static bfd_boolean
-iq2000_elf_merge_private_bfd_data (ibfd, obfd)
- bfd *ibfd;
- bfd *obfd;
+iq2000_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
{
flagword old_flags, old_partial;
flagword new_flags, new_partial;
new_flags = elf_elfheader (ibfd)->e_flags;
old_flags = elf_elfheader (obfd)->e_flags;
-#ifdef DEBUG
- (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
- old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
- bfd_get_filename (ibfd));
-#endif
-
if (!elf_flags_init (obfd))
{
/* First call, no flags set. */
elf_elfheader (obfd)->e_flags = new_flags;
}
- else if (new_flags == old_flags)
- /* Compatible flags are ok. */
- ;
-
- else /* Possibly incompatible flags. */
+ else if (new_flags != old_flags)
{
- /* Warn if different cpu is used (allow a specific cpu to override
- the generic cpu). */
+ /* Warn if different cpu is used, but allow a
+ specific cpu to override the generic cpu. */
new_partial = (new_flags & EF_IQ2000_CPU_MASK);
old_partial = (old_flags & EF_IQ2000_CPU_MASK);
- if (new_partial == old_partial)
- ;
- else
+ if (new_partial != old_partial)
{
switch (new_partial)
{
- default: strcat (new_opt, " -m2000"); break;
- case EF_IQ2000_CPU_IQ2000: strcat (new_opt, " -m2000"); break;
- case EF_IQ2000_CPU_IQ10: strcat (new_opt, " -m10"); break;
+ case EF_IQ2000_CPU_IQ10:
+ strcat (new_opt, " -m10");
+ break;
+
+ default:
+ case EF_IQ2000_CPU_IQ2000:
+ strcat (new_opt, " -m2000");
+ break;
}
switch (old_partial)
{
- default: strcat (old_opt, " -m2000"); break;
- case EF_IQ2000_CPU_IQ2000: strcat (old_opt, " -m2000"); break;
- case EF_IQ2000_CPU_IQ10: strcat (old_opt, " -m10"); break;
+ case EF_IQ2000_CPU_IQ10:
+ strcat (old_opt, " -m10");
+ break;
+
+ default:
+ case EF_IQ2000_CPU_IQ2000:
+ strcat (old_opt, " -m2000");
+ break;
}
}
if (new_opt[0])
{
error = TRUE;
- (*_bfd_error_handler)
+ _bfd_error_handler
(_("%s: compiled with %s and linked with modules compiled with %s"),
bfd_get_filename (ibfd), new_opt, old_opt);
}
if (new_flags != old_flags)
{
error = TRUE;
- (*_bfd_error_handler)
+
+ _bfd_error_handler
(_("%s: uses different e_flags (0x%lx) fields than previous modules (0x%lx)"),
bfd_get_filename (ibfd), (long)new_flags, (long)old_flags);
}
\f
static bfd_boolean
-iq2000_elf_print_private_bfd_data (abfd, ptr)
- bfd *abfd;
- PTR ptr;
+iq2000_elf_print_private_bfd_data (bfd *abfd, void * ptr)
{
FILE *file = (FILE *) ptr;
flagword flags;
switch (flags & EF_IQ2000_CPU_MASK)
{
- default: break;
- case EF_IQ2000_CPU_IQ2000: fprintf (file, " -m2000"); break;
- case EF_IQ2000_CPU_IQ10: fprintf (file, " -m10"); break;
+ case EF_IQ2000_CPU_IQ10:
+ fprintf (file, " -m10");
+ break;
+ case EF_IQ2000_CPU_IQ2000:
+ fprintf (file, " -m2000");
+ break;
+ default:
+ break;
}
fputc ('\n', file);
static
bfd_boolean
-iq2000_elf_object_p (abfd)
- bfd *abfd;
+iq2000_elf_object_p (bfd *abfd)
{
bfd_default_set_arch_mach (abfd, bfd_arch_iq2000,
elf32_iq2000_machine (abfd));
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