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-rw-r--r--contrib/binutils/bfd/elf32-ppc.c98
1 files changed, 54 insertions, 44 deletions
diff --git a/contrib/binutils/bfd/elf32-ppc.c b/contrib/binutils/bfd/elf32-ppc.c
index be6cfab..31d9e0c 100644
--- a/contrib/binutils/bfd/elf32-ppc.c
+++ b/contrib/binutils/bfd/elf32-ppc.c
@@ -1,5 +1,5 @@
/* PowerPC-specific support for 32-bit ELF
- Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Written by Ian Lance Taylor, Cygnus Support.
@@ -49,6 +49,8 @@ static boolean ppc_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
static int ppc_elf_additional_program_headers PARAMS ((bfd *));
static boolean ppc_elf_modify_segment_map PARAMS ((bfd *));
+static asection *ppc_elf_create_got
+ PARAMS ((bfd *, struct bfd_link_info *));
static boolean ppc_elf_create_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
@@ -679,20 +681,20 @@ static reloc_howto_type ppc_elf_howto_raw[] = {
0xffff, /* dst_mask */
false), /* pcrel_offset */
- /* 32-bit section relative relocation. */
+ /* 16-bit section relative relocation. */
HOWTO (R_PPC_SECTOFF, /* type */
0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- true, /* pc_relative */
+ 1, /* size (0 = byte, 1 = short, 2 = long) */
+ 16, /* bitsize */
+ false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_PPC_SECTOFF", /* name */
false, /* partial_inplace */
0, /* src_mask */
- 0, /* dst_mask */
- true), /* pcrel_offset */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
/* 16-bit lower half section relative relocation. */
HOWTO (R_PPC_SECTOFF_LO, /* type */
@@ -1295,7 +1297,7 @@ ppc_elf_reloc_type_lookup (abfd, code)
case BFD_RELOC_HI16_PLTOFF: ppc_reloc = R_PPC_PLT16_HI; break;
case BFD_RELOC_HI16_S_PLTOFF: ppc_reloc = R_PPC_PLT16_HA; break;
case BFD_RELOC_GPREL16: ppc_reloc = R_PPC_SDAREL16; break;
- case BFD_RELOC_32_BASEREL: ppc_reloc = R_PPC_SECTOFF; break;
+ case BFD_RELOC_16_BASEREL: ppc_reloc = R_PPC_SECTOFF; break;
case BFD_RELOC_LO16_BASEREL: ppc_reloc = R_PPC_SECTOFF_LO; break;
case BFD_RELOC_HI16_BASEREL: ppc_reloc = R_PPC_SECTOFF_HI; break;
case BFD_RELOC_HI16_S_BASEREL: ppc_reloc = R_PPC_SECTOFF_HA; break;
@@ -1632,6 +1634,30 @@ ppc_elf_modify_segment_map (abfd)
return true;
}
+/* The powerpc .got has a blrl instruction in it. Mark it executable. */
+
+static asection *
+ppc_elf_create_got (abfd, info)
+ bfd *abfd;
+ struct bfd_link_info *info;
+{
+ register asection *s;
+ flagword flags;
+
+ if (!_bfd_elf_create_got_section (abfd, info))
+ return NULL;
+
+ s = bfd_get_section_by_name (abfd, ".got");
+ if (s == NULL)
+ abort ();
+
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_LINKER_CREATED);
+ if (!bfd_set_section_flags (abfd, s, flags))
+ return NULL;
+ return s;
+}
+
/* We have to create .dynsbss and .rela.sbss here so that they get mapped
to output sections (just like _bfd_elf_create_dynamic_sections has
to create .dynbss and .rela.bss). */
@@ -1644,6 +1670,9 @@ ppc_elf_create_dynamic_sections (abfd, info)
register asection *s;
flagword flags;
+ if (!ppc_elf_create_got (abfd, info))
+ return false;
+
if (!_bfd_elf_create_dynamic_sections (abfd, info))
return false;
@@ -1663,7 +1692,13 @@ ppc_elf_create_dynamic_sections (abfd, info)
|| ! bfd_set_section_alignment (abfd, s, 2))
return false;
}
- return true;
+
+ s = bfd_get_section_by_name (abfd, ".plt");
+ if (s == NULL)
+ abort ();
+
+ flags = SEC_ALLOC | SEC_CODE | SEC_IN_MEMORY | SEC_LINKER_CREATED;
+ return bfd_set_section_flags (abfd, s, flags);
}
/* Adjust a symbol defined by a dynamic object and referenced by a
@@ -2119,10 +2154,9 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
{
if (dynobj == NULL)
elf_hash_table (info)->dynobj = dynobj = abfd;
- if (! _bfd_elf_create_got_section (dynobj, info))
+ sgot = ppc_elf_create_got (dynobj, info);
+ if (sgot == NULL)
return false;
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
}
}
@@ -2139,10 +2173,9 @@ ppc_elf_check_relocs (abfd, info, sec, relocs)
{
if (dynobj == NULL)
elf_hash_table (info)->dynobj = dynobj = abfd;
- if (! _bfd_elf_create_got_section (dynobj, info))
+ sgot = ppc_elf_create_got (dynobj, info);
+ if (sgot == NULL)
return false;
- sgot = bfd_get_section_by_name (dynobj, ".got");
- BFD_ASSERT (sgot != NULL);
}
if (srelgot == NULL
@@ -2542,7 +2575,8 @@ ppc_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
{
if (sym->st_shndx == SHN_COMMON
&& !info->relocateable
- && sym->st_size <= elf_gp_size (abfd))
+ && sym->st_size <= elf_gp_size (abfd)
+ && info->hash->creator->flavour == bfd_target_elf_flavour)
{
/* Common symbols less than or equal to -G nn bytes are automatically
put into .sdata. */
@@ -2895,6 +2929,9 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
(info->relocateable) ? " (relocatable)" : "");
#endif
+ if (info->relocateable)
+ return true;
+
if (!ppc_elf_howto_table[R_PPC_ADDR32])
/* Initialize howto table if needed. */
ppc_elf_howto_init ();
@@ -2939,34 +2976,6 @@ ppc_elf_relocate_section (output_bfd, info, input_bfd, input_section,
howto = ppc_elf_howto_table[(int) r_type];
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 ((unsigned) ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- sec = local_sections[r_symndx];
- addend = rel->r_addend += sec->output_offset + sym->st_value;
- }
- }
-
-#ifdef DEBUG
- fprintf (stderr, "\ttype = %s (%d), symbol index = %ld, offset = %ld, addend = %ld\n",
- howto->name,
- (int) r_type,
- r_symndx,
- (long) offset,
- (long) addend);
-#endif
- continue;
- }
-
- /* This is a final link. */
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
@@ -3780,6 +3789,7 @@ ppc_elf_grok_psinfo (abfd, note)
#define elf_backend_can_refcount 1
#define elf_backend_got_header_size 12
#define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE
+#define elf_backend_rela_normal 1
#define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data
#define bfd_elf32_bfd_relax_section ppc_elf_relax_section
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