-/* Morpho Technologies MS1 specific support for 32-bit ELF
- Copyright 2001, 2002, 2003, 2004, 2005
+/* Morpho Technologies MT specific support for 32-bit ELF
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012
Free Software Foundation, Inc.
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/mt.h"
/* Prototypes. */
-static reloc_howto_type * ms1_reloc_type_lookup
+static reloc_howto_type * mt_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
-static void ms1_info_to_howto_rela
+static void mt_info_to_howto_rela
(bfd *, arelent *, Elf_Internal_Rela *);
-static bfd_reloc_status_type ms1_elf_relocate_hi16
+static bfd_reloc_status_type mt_elf_relocate_hi16
(bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma);
-static bfd_reloc_status_type ms1_final_link_relocate
+static bfd_reloc_status_type mt_final_link_relocate
(reloc_howto_type *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, bfd_vma);
-static bfd_boolean ms1_elf_relocate_section
+static bfd_boolean mt_elf_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
/* Relocation tables. */
-static reloc_howto_type ms1_elf_howto_table [] =
+static reloc_howto_type mt_elf_howto_table [] =
{
/* This reloc does nothing. */
- HOWTO (R_MS1_NONE, /* type */
+ HOWTO (R_MT_NONE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_NONE", /* name */
+ "R_MT_NONE", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16 bit absolute relocation. */
- HOWTO (R_MS1_16, /* type */
+ HOWTO (R_MT_16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_16", /* name */
+ "R_MT_16", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit absolute relocation. */
- HOWTO (R_MS1_32, /* type */
+ HOWTO (R_MT_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_32", /* name */
+ "R_MT_32", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit pc-relative relocation. */
- HOWTO (R_MS1_32_PCREL, /* type */
+ HOWTO (R_MT_32_PCREL, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_32_PCREL", /* name */
+ "R_MT_32_PCREL", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* A 16 bit pc-relative relocation. */
- HOWTO (R_MS1_PC16, /* type */
+ HOWTO (R_MT_PC16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_PC16", /* name */
+ "R_MT_PC16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* high 16 bits of symbol value. */
- HOWTO (R_MS1_HI16, /* type */
+ HOWTO (R_MT_HI16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_HI16", /* name */
+ "R_MT_HI16", /* name */
FALSE, /* partial_inplace */
0xffff0000, /* src_mask */
0xffff0000, /* dst_mask */
FALSE), /* pcrel_offset */
/* Low 16 bits of symbol value. */
- HOWTO (R_MS1_LO16, /* type */
+ HOWTO (R_MT_LO16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
- "R_MS1_LO16", /* name */
+ "R_MT_LO16", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
};
-/* Map BFD reloc types to MS1 ELF reloc types. */
+/* Map BFD reloc types to MT ELF reloc types. */
static reloc_howto_type *
-ms1_reloc_type_lookup
+mt_reloc_type_lookup
(bfd * abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
- /* Note that the ms1_elf_howto_table is indxed by the R_
+ /* Note that the mt_elf_howto_table is indxed by the R_
constants. Thus, the order that the howto records appear in the
table *must* match the order of the relocation types defined in
- include/elf/ms1.h. */
+ include/elf/mt.h. */
switch (code)
{
case BFD_RELOC_NONE:
- return &ms1_elf_howto_table[ (int) R_MS1_NONE];
+ return &mt_elf_howto_table[ (int) R_MT_NONE];
case BFD_RELOC_16:
- return &ms1_elf_howto_table[ (int) R_MS1_16];
+ return &mt_elf_howto_table[ (int) R_MT_16];
case BFD_RELOC_32:
- return &ms1_elf_howto_table[ (int) R_MS1_32];
+ return &mt_elf_howto_table[ (int) R_MT_32];
case BFD_RELOC_32_PCREL:
- return &ms1_elf_howto_table[ (int) R_MS1_32_PCREL];
+ return &mt_elf_howto_table[ (int) R_MT_32_PCREL];
case BFD_RELOC_16_PCREL:
- return &ms1_elf_howto_table[ (int) R_MS1_PC16];
+ return &mt_elf_howto_table[ (int) R_MT_PC16];
case BFD_RELOC_HI16:
- return &ms1_elf_howto_table[ (int) R_MS1_HI16];
+ return &mt_elf_howto_table[ (int) R_MT_HI16];
case BFD_RELOC_LO16:
- return &ms1_elf_howto_table[ (int) R_MS1_LO16];
+ return &mt_elf_howto_table[ (int) R_MT_LO16];
default:
/* Pacify gcc -Wall. */
return NULL;
}
+static reloc_howto_type *
+mt_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (mt_elf_howto_table) / sizeof (mt_elf_howto_table[0]);
+ i++)
+ if (mt_elf_howto_table[i].name != NULL
+ && strcasecmp (mt_elf_howto_table[i].name, r_name) == 0)
+ return &mt_elf_howto_table[i];
+
+ return NULL;
+}
+
bfd_reloc_status_type
-ms1_elf_relocate_hi16
+mt_elf_relocate_hi16
(bfd * input_bfd,
Elf_Internal_Rela * relhi,
bfd_byte * contents,
/* XXX: The following code is the result of a cut&paste. This unfortunate
practice is very widespread in the various target back-end files. */
-/* Set the howto pointer for a MS1 ELF reloc. */
+/* Set the howto pointer for a MT ELF reloc. */
static void
-ms1_info_to_howto_rela
+mt_info_to_howto_rela
(bfd * abfd ATTRIBUTE_UNUSED,
arelent * cache_ptr,
Elf_Internal_Rela * dst)
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
- cache_ptr->howto = & ms1_elf_howto_table [r_type];
+ cache_ptr->howto = & mt_elf_howto_table [r_type];
}
/* Perform a single relocation. By default we use the standard BFD
routines. */
static bfd_reloc_status_type
-ms1_final_link_relocate
+mt_final_link_relocate
(reloc_howto_type * howto,
bfd * input_bfd,
asection * input_section,
relocation, rel->r_addend);
}
-/* Relocate a MS1 ELF section.
+/* Relocate a MT ELF section.
There is some attempt to make this function usable for many architectures,
both USE_REL and USE_RELA ['twould be nice if such a critter existed],
if only to serve as a learning tool.
accordingly. */
static bfd_boolean
-ms1_elf_relocate_section
+mt_elf_relocate_section
(bfd * output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info,
bfd * input_bfd,
r_symndx = ELF32_R_SYM (rel->r_info);
- /* This is a final link. */
- howto = ms1_elf_howto_table + ELF32_R_TYPE (rel->r_info);
+ howto = mt_elf_howto_table + ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
name = h->root.root.string;
}
+ if (sec != NULL && discarded_section (sec))
+ RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
+ rel, 1, relend, howto, 0, contents);
- /* Finally, the sole MS1-specific part. */
+ if (info->relocatable)
+ continue;
+
+ /* Finally, the sole MT-specific part. */
switch (r_type)
{
- case R_MS1_HI16:
- r = ms1_elf_relocate_hi16 (input_bfd, rel, contents, relocation);
+ case R_MT_HI16:
+ r = mt_elf_relocate_hi16 (input_bfd, rel, contents, relocation);
break;
default:
- r = ms1_final_link_relocate (howto, input_bfd, input_section,
+ r = mt_final_link_relocate (howto, input_bfd, input_section,
contents, rel, relocation);
break;
}
return TRUE;
}
-/* Return the section that should be marked against GC for a given
- relocation. */
-
-static asection *
-ms1_elf_gc_mark_hook
- (asection * sec,
- struct bfd_link_info * info ATTRIBUTE_UNUSED,
- Elf_Internal_Rela * rel ATTRIBUTE_UNUSED,
- struct elf_link_hash_entry * h,
- Elf_Internal_Sym * sym)
-{
- if (h != NULL)
- {
- 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;
-
- default:
- break;
- }
- }
- else
- {
- if (!(elf_bad_symtab (sec->owner)
- && 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 (sec->owner, sym->st_shndx);
- }
-
- return NULL;
-}
-
-/* Update the got entry reference counts for the section being
- removed. */
-
-static bfd_boolean
-ms1_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;
-}
-
/* 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 bfd_boolean
-ms1_elf_check_relocs
+mt_elf_check_relocs
(bfd * abfd,
struct bfd_link_info * info,
asection * sec,
{
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;
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);
- if (!elf_bad_symtab (abfd))
- sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
/* Return the MACH for an e_flags value. */
static int
-elf32_ms1_machine (bfd *abfd)
+elf32_mt_machine (bfd *abfd)
{
- switch (elf_elfheader (abfd)->e_flags & EF_MS1_CPU_MASK)
+ switch (elf_elfheader (abfd)->e_flags & EF_MT_CPU_MASK)
{
- case EF_MS1_CPU_MRISC: return bfd_mach_ms1;
- case EF_MS1_CPU_MRISC2: return bfd_mach_mrisc2;
- case EF_MS1_CPU_MS2: return bfd_mach_ms2;
+ case EF_MT_CPU_MRISC: return bfd_mach_ms1;
+ case EF_MT_CPU_MRISC2: return bfd_mach_mrisc2;
+ case EF_MT_CPU_MS2: return bfd_mach_ms2;
}
return bfd_mach_ms1;
}
static bfd_boolean
-ms1_elf_object_p (bfd * abfd)
+mt_elf_object_p (bfd * abfd)
{
- bfd_default_set_arch_mach (abfd, bfd_arch_ms1, elf32_ms1_machine (abfd));
+ bfd_default_set_arch_mach (abfd, bfd_arch_mt, elf32_mt_machine (abfd));
return TRUE;
}
/* Function to set the ELF flag bits. */
static bfd_boolean
-ms1_elf_set_private_flags (bfd * abfd,
+mt_elf_set_private_flags (bfd * abfd,
flagword flags)
{
elf_elfheader (abfd)->e_flags = flags;
}
static bfd_boolean
-ms1_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd)
+mt_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)
elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
elf_flags_init (obfd) = TRUE;
+
+ /* Copy object attributes. */
+ _bfd_elf_copy_obj_attributes (ibfd, obfd);
+
return TRUE;
}
object file when linking. */
static bfd_boolean
-ms1_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
+mt_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
{
flagword old_flags, new_flags;
- bfd_boolean error = FALSE;
+ bfd_boolean ok = TRUE;
- /* Check if we have the same endianess. */
+ /* Check if we have the same endianness. */
if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
return FALSE;
- /* If they're not both ms1, then merging is meaningless, so just
+ /* If they're not both mt, then merging is meaningless, so just
don't do it. */
- if (strcmp (ibfd->arch_info->arch_name, "ms1") != 0)
+ if (strcmp (ibfd->arch_info->arch_name, "mt") != 0)
return TRUE;
- if (strcmp (obfd->arch_info->arch_name, "ms1") != 0)
+ if (strcmp (obfd->arch_info->arch_name, "mt") != 0)
return TRUE;
new_flags = elf_elfheader (ibfd)->e_flags;
old_flags = new_flags;
elf_flags_init (obfd) = TRUE;
}
- else if ((new_flags & EF_MS1_CPU_MASK) != (old_flags & EF_MS1_CPU_MASK))
+ else if ((new_flags & EF_MT_CPU_MASK) != (old_flags & EF_MT_CPU_MASK))
{
/* CPU has changed. This is invalid, because MRISC, MRISC2 and
MS2 are not subsets of each other. */
- error = 1;
-
- /* FIXME:However, until the compiler is multilibbed, preventing
- mixing breaks the build. So we allow merging and use the
- greater CPU value. This is of course unsafe. */
- error = 0;
- if ((new_flags & EF_MS1_CPU_MASK) > (old_flags & EF_MS1_CPU_MASK))
- old_flags = ((old_flags & ~EF_MS1_CPU_MASK)
- | (new_flags & EF_MS1_CPU_MASK));
+ ok = FALSE;
}
- if (!error)
+
+ if (ok)
{
obfd->arch_info = ibfd->arch_info;
elf_elfheader (obfd)->e_flags = old_flags;
}
- return !error;
+ return ok;
}
static bfd_boolean
-ms1_elf_print_private_bfd_data (bfd * abfd, void * ptr)
+mt_elf_print_private_bfd_data (bfd * abfd, void * ptr)
{
FILE * file = (FILE *) ptr;
flagword flags;
_bfd_elf_print_private_bfd_data (abfd, ptr);
flags = elf_elfheader (abfd)->e_flags;
- fprintf (file, _("private flags = 0x%lx:"), (long)flags);
+ fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
- switch (flags & EF_MS1_CPU_MASK)
+ switch (flags & EF_MT_CPU_MASK)
{
default:
- case EF_MS1_CPU_MRISC: fprintf (file, " ms1-16-002"); break;
- case EF_MS1_CPU_MRISC2: fprintf (file, " ms1-16-003"); break;
- case EF_MS1_CPU_MS2: fprintf (file, " ms2"); break;
+ case EF_MT_CPU_MRISC: fprintf (file, " ms1-16-002"); break;
+ case EF_MT_CPU_MRISC2: fprintf (file, " ms1-16-003"); break;
+ case EF_MT_CPU_MS2: fprintf (file, " ms2"); break;
}
fputc ('\n', file);
}
\f
-#define TARGET_BIG_SYM bfd_elf32_ms1_vec
-#define TARGET_BIG_NAME "elf32-ms1"
+#define TARGET_BIG_SYM bfd_elf32_mt_vec
+#define TARGET_BIG_NAME "elf32-mt"
-#define ELF_ARCH bfd_arch_ms1
-#define ELF_MACHINE_CODE EM_MS1
-#define ELF_MAXPAGESIZE 1 /* No pages on the MS1. */
+#define ELF_ARCH bfd_arch_mt
+#define ELF_MACHINE_CODE EM_MT
+#define ELF_MAXPAGESIZE 1 /* No pages on the MT. */
#define elf_info_to_howto_rel NULL
-#define elf_info_to_howto ms1_info_to_howto_rela
+#define elf_info_to_howto mt_info_to_howto_rela
-#define elf_backend_relocate_section ms1_elf_relocate_section
+#define elf_backend_relocate_section mt_elf_relocate_section
-#define bfd_elf32_bfd_reloc_type_lookup ms1_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_type_lookup mt_reloc_type_lookup
+#define bfd_elf32_bfd_reloc_name_lookup mt_reloc_name_lookup
-#define elf_backend_gc_mark_hook ms1_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook ms1_elf_gc_sweep_hook
-#define elf_backend_check_relocs ms1_elf_check_relocs
-#define elf_backend_object_p ms1_elf_object_p
+#define elf_backend_check_relocs mt_elf_check_relocs
+#define elf_backend_object_p mt_elf_object_p
#define elf_backend_rela_normal 1
#define elf_backend_can_gc_sections 1
-#define bfd_elf32_bfd_set_private_flags ms1_elf_set_private_flags
-#define bfd_elf32_bfd_copy_private_bfd_data ms1_elf_copy_private_bfd_data
-#define bfd_elf32_bfd_merge_private_bfd_data ms1_elf_merge_private_bfd_data
-#define bfd_elf32_bfd_print_private_bfd_data ms1_elf_print_private_bfd_data
+#define bfd_elf32_bfd_set_private_flags mt_elf_set_private_flags
+#define bfd_elf32_bfd_copy_private_bfd_data mt_elf_copy_private_bfd_data
+#define bfd_elf32_bfd_merge_private_bfd_data mt_elf_merge_private_bfd_data
+#define bfd_elf32_bfd_print_private_bfd_data mt_elf_print_private_bfd_data
#include "elf32-target.h"