/* Motorola MCore specific support for 32-bit ELF
- Copyright 1994, 1995, 1999, 2000, 2001, 2002
+ Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
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. */
+Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
/* This file is based on a preliminary RCE ELF ABI. The
information may not match the final RCE ELF ABI. */
#include "elf/mcore.h"
#include <assert.h>
-#define USE_RELA /* Only USE_REL is actually significant, but this is
- here are a reminder... */
+/* RELA relocs are used here... */
static void mcore_elf_howto_init
PARAMS ((void));
static reloc_howto_type * mcore_elf_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
static void mcore_elf_info_to_howto
- PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
-static boolean mcore_elf_set_private_flags
+ PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+static bfd_boolean mcore_elf_set_private_flags
PARAMS ((bfd *, flagword));
-static boolean mcore_elf_merge_private_bfd_data
+static bfd_boolean mcore_elf_merge_private_bfd_data
PARAMS ((bfd *, bfd *));
static bfd_reloc_status_type mcore_elf_unsupported_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static boolean mcore_elf_relocate_section
+static bfd_boolean mcore_elf_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
static asection * mcore_elf_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 mcore_elf_gc_sweep_hook
+static bfd_boolean mcore_elf_gc_sweep_hook
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
-static boolean mcore_elf_check_relocs
+static bfd_boolean mcore_elf_check_relocs
PARAMS ((bfd *, struct bfd_link_info *, asection *,
const Elf_Internal_Rela *));
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
NULL, /* special_function */
"R_MCORE_NONE", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* A standard 32 bit relocation. */
HOWTO (R_MCORE_ADDR32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "ADDR32", /* name *//* For compatability with coff/pe port. */
- false, /* partial_inplace */
+ "ADDR32", /* name *//* For compatibility with coff/pe port. */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
Should not appear in object files. */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_elf_unsupported_reloc, /* special_function */
"R_MCORE_PCRELIMM8BY4",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
Span 2k instructions == 4k bytes.
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCRELIMM11BY2",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */
HOWTO (R_MCORE_PCRELIMM4BY2, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
4, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
mcore_elf_unsupported_reloc,/* special_function */
"R_MCORE_PCRELIMM4BY2",/* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* 32-bit pc-relative. Eventually this will help support PIC code. */
HOWTO (R_MCORE_PCREL32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCREL32", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0xffffffff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* Like PCRELIMM11BY2, this relocation indicates that there is a
'jsri' at the specified address. There is a separate relocation
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
11, /* bitsize */
- true, /* pc_relative */
+ TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MCORE_PCRELJSR_IMM11BY2", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0x0, /* src_mask */
0x7ff, /* dst_mask */
- true), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
/* GNU extension to record C++ vtable hierarchy */
HOWTO (R_MCORE_GNU_VTINHERIT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
NULL, /* special_function */
"R_MCORE_GNU_VTINHERIT", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
/* GNU extension to record C++ vtable member usage */
HOWTO (R_MCORE_GNU_VTENTRY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
"R_MCORE_GNU_VTENTRY", /* name */
- false, /* partial_inplace */
+ FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
- false), /* pcrel_offset */
+ FALSE), /* pcrel_offset */
HOWTO (R_MCORE_RELATIVE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
- false, /* pc_relative */
+ FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
NULL, /* special_function */
"R_MCORE_RELATIVE", /* name */
- true, /* partial_inplace */
+ TRUE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
- false) /* pcrel_offset */
+ FALSE) /* pcrel_offset */
};
#ifndef NUM_ELEM
mcore_elf_info_to_howto (abfd, cache_ptr, dst)
bfd * abfd ATTRIBUTE_UNUSED;
arelent * cache_ptr;
- Elf32_Internal_Rela * dst;
+ Elf_Internal_Rela * dst;
{
if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
mcore_elf_howto_init ();
}
/* Function to set whether a module needs the -mrelocatable bit set. */
-static boolean
+static bfd_boolean
mcore_elf_set_private_flags (abfd, flags)
bfd * abfd;
flagword flags;
|| elf_elfheader (abfd)->e_flags == flags);
elf_elfheader (abfd)->e_flags = flags;
- elf_flags_init (abfd) = true;
- return true;
+ elf_flags_init (abfd) = TRUE;
+ return TRUE;
}
/* Merge backend specific data from an object file to the output
object file when linking. */
-static boolean
+static bfd_boolean
mcore_elf_merge_private_bfd_data (ibfd, obfd)
bfd * ibfd;
bfd * obfd;
/* Check if we have the same endianess */
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
- return false;
+ return FALSE;
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
- return true;
+ return TRUE;
new_flags = elf_elfheader (ibfd)->e_flags;
old_flags = elf_elfheader (obfd)->e_flags;
if (! elf_flags_init (obfd)) /* First call, no flags set */
{
- elf_flags_init (obfd) = true;
+ elf_flags_init (obfd) = TRUE;
elf_elfheader (obfd)->e_flags = new_flags;
}
else if (new_flags == old_flags) /* Compatible flags are ok */
/* FIXME */
}
- return true;
+ return TRUE;
}
\f
/* Don't pretend we can deal with unsupported relocs. */
{
BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
- _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
- bfd_archive_filename (abfd),
+ _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ abfd,
reloc_entry->howto->name,
reloc_entry->howto->type);
This function is responsible for adjust the section contents as
necessary, and (if using Rela relocs and generating a
- relocateable output file) adjusting the reloc addend as
+ relocatable output file) adjusting the reloc addend as
necessary.
This function does not have to worry about setting the reloc
The global hash table entry for the global symbols can be found
via elf_sym_hashes (input_bfd).
- When generating relocateable output, this function must handle
+ When generating relocatable output, this function must handle
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
going to be the section symbol corresponding to the output
section, which means that the addend must be adjusted
accordingly. */
-static boolean
+static bfd_boolean
mcore_elf_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, local_syms, local_sections)
+ contents, relocs, local_syms, local_sections)
bfd * output_bfd;
struct bfd_link_info * info;
bfd * input_bfd;
Elf_Internal_Sym * local_syms;
asection ** local_sections;
{
- Elf_Internal_Shdr * symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
struct elf_link_hash_entry ** sym_hashes = elf_sym_hashes (input_bfd);
- Elf_Internal_Rela * rel = relocs;
- Elf_Internal_Rela * relend = relocs + input_section->reloc_count;
- boolean ret = true;
+ Elf_Internal_Rela * rel = relocs;
+ Elf_Internal_Rela * relend = relocs + input_section->reloc_count;
+ bfd_boolean ret = TRUE;
#ifdef DEBUG
- fprintf (stderr,
- "mcore_elf_relocate_section called for %s section %s, %ld relocations%s\n",
- bfd_archive_filename (input_bfd),
- bfd_section_name(input_bfd, input_section),
- (long) input_section->reloc_count,
- (info->relocateable) ? " (relocatable)" : "");
+ _bfd_error_handler
+ ("mcore_elf_relocate_section called for %B section %A, %ld relocations%s",
+ input_bfd,
+ input_section,
+ (long) input_section->reloc_count,
+ (info->relocatable) ? " (relocatable)" : "");
#endif
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
if (! mcore_elf_howto_table [R_MCORE_PCRELIMM8BY4]) /* Initialize howto table if needed */
mcore_elf_howto_init ();
if ((unsigned) r_type >= (unsigned) R_MCORE_max
|| ! mcore_elf_howto_table [(int)r_type])
{
- _bfd_error_handler (_("%s: Unknown relocation type %d\n"),
- bfd_archive_filename (input_bfd),
- (int) r_type);
+ _bfd_error_handler (_("%B: Unknown relocation type %d\n"),
+ input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
- ret = false;
+ ret = FALSE;
continue;
}
/* Complain about known relocation that are not yet supported. */
if (howto->special_function == mcore_elf_unsupported_reloc)
{
- _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
- bfd_archive_filename (input_bfd),
+ _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"),
+ input_bfd,
howto->name,
(int)r_type);
bfd_set_error (bfd_error_bad_value);
- ret = false;
+ ret = FALSE;
continue;
}
{
sym = local_syms + r_symndx;
sec = local_sections [r_symndx];
- relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
addend = rel->r_addend;
}
else
{
- h = sym_hashes [r_symndx - symtab_hdr->sh_info];
- if ( h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- {
- sec = h->root.u.def.section;
- relocation = (h->root.u.def.value
- + sec->output_section->vma
- + sec->output_offset);
- }
- else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else if (info->shared
- && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- relocation = 0;
- else
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd,
- input_section, rel->r_offset, true)))
- return false;
+ bfd_boolean unresolved_reloc, warned;
- ret = false;
- continue;
- }
+ RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
+ r_symndx, symtab_hdr, sym_hashes,
+ h, sec, relocation,
+ unresolved_reloc, warned);
}
switch (r_type)
if (r != bfd_reloc_ok)
{
- ret = false;
+ ret = FALSE;
switch (r)
{
const char * name;
if (h != NULL)
- name = h->root.root.string;
+ name = NULL;
else
{
name = bfd_elf_string_from_elf_section
}
(*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section,
- offset);
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, offset);
}
break;
}
relocation. */
static asection *
-mcore_elf_gc_mark_hook (abfd, info, rel, h, sym)
- bfd * abfd;
+mcore_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;
}
}
else
- {
- 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 entry reference counts for the section being removed. */
-static boolean
+static bfd_boolean
mcore_elf_gc_sweep_hook (abfd, info, sec, relocs)
- bfd * abfd ATTRIBUTE_UNUSED;
- struct bfd_link_info * info ATTRIBUTE_UNUSED;
- asection * sec ATTRIBUTE_UNUSED;
+ bfd * abfd ATTRIBUTE_UNUSED;
+ struct bfd_link_info * info ATTRIBUTE_UNUSED;
+ asection * sec ATTRIBUTE_UNUSED;
const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
{
- return true;
+ return TRUE;
}
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
-static boolean
+static bfd_boolean
mcore_elf_check_relocs (abfd, info, sec, relocs)
bfd * abfd;
struct bfd_link_info * info;
asection * sec;
const Elf_Internal_Rela * relocs;
{
- Elf_Internal_Shdr * symtab_hdr;
+ Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
struct elf_link_hash_entry ** sym_hashes_end;
- const Elf_Internal_Rela * rel;
- const Elf_Internal_Rela * rel_end;
+ const Elf_Internal_Rela * rel;
+ const Elf_Internal_Rela * rel_end;
- if (info->relocateable)
- return true;
+ if (info->relocatable)
+ return TRUE;
symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
case R_MCORE_GNU_VTINHERIT:
- if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return false;
+ 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. */
case R_MCORE_GNU_VTENTRY:
- if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return false;
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
break;
}
}
- return true;
+ return TRUE;
}
+static struct bfd_elf_special_section const mcore_elf_special_sections[]=
+{
+ { ".ctors", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { ".dtors", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
+ { NULL, 0, 0, 0, 0 }
+};
+
#define TARGET_BIG_SYM bfd_elf32_mcore_big_vec
#define TARGET_BIG_NAME "elf32-mcore-big"
#define TARGET_LITTLE_SYM bfd_elf32_mcore_little_vec
#define elf_backend_gc_mark_hook mcore_elf_gc_mark_hook
#define elf_backend_gc_sweep_hook mcore_elf_gc_sweep_hook
#define elf_backend_check_relocs mcore_elf_check_relocs
+#define elf_backend_special_sections mcore_elf_special_sections
#define elf_backend_can_gc_sections 1
#define elf_backend_rela_normal 1
projects / deliverable / binutils-gdb.git / blobdiff