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Unified Diff: bfd/mach-o-i386.c

Issue 11969036: Merge GDB 7.5.1 (Closed) Base URL: http://git.chromium.org/native_client/nacl-gdb.git@master
Patch Set: Created 7 years, 11 months ago
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Index: bfd/mach-o-i386.c
diff --git a/bfd/mach-o-i386.c b/bfd/mach-o-i386.c
index 11915604b32b324675a93654626ef1568220541a..e7688abfc78a074139127ae1518688ebfdee4713 100644
--- a/bfd/mach-o-i386.c
+++ b/bfd/mach-o-i386.c
@@ -63,6 +63,7 @@ bfd_mach_o_i386_mkobject (bfd *abfd)
static reloc_howto_type i386_howto_table[]=
{
+ /* 0 */
HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
complain_overflow_bitfield,
NULL, "32",
@@ -79,6 +80,7 @@ static reloc_howto_type i386_howto_table[]=
complain_overflow_bitfield,
NULL, "DISP32",
FALSE, 0xffffffff, 0xffffffff, TRUE),
+ /* 4 */
HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
complain_overflow_bitfield,
NULL, "DISP16",
@@ -87,10 +89,27 @@ static reloc_howto_type i386_howto_table[]=
complain_overflow_bitfield,
NULL, "SECTDIFF_32",
FALSE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 2, 32, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "LSECTDIFF_32",
+ FALSE, 0xffffffff, 0xffffffff, FALSE),
HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
complain_overflow_bitfield,
NULL, "PAIR_32",
FALSE, 0xffffffff, 0xffffffff, FALSE),
+ /* 8 */
+ HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "SECTDIFF_16",
+ FALSE, 0xffff, 0xffff, FALSE),
+ HOWTO(BFD_RELOC_MACH_O_LOCAL_SECTDIFF, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "LSECTDIFF_16",
+ FALSE, 0xffff, 0xffff, FALSE),
+ HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "PAIR_16",
+ FALSE, 0xffff, 0xffff, FALSE),
};
static bfd_boolean
@@ -101,17 +120,43 @@ bfd_mach_o_i386_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
switch (reloc->r_type)
{
case BFD_MACH_O_GENERIC_RELOC_PAIR:
- if (reloc->r_length != 2)
- return FALSE;
- res->howto = &i386_howto_table[6];
- res->address = res[-1].address;
- return TRUE;
+ if (reloc->r_length == 2)
+ {
+ res->howto = &i386_howto_table[7];
+ res->address = res[-1].address;
+ return TRUE;
+ }
+ else if (reloc->r_length == 1)
+ {
+ res->howto = &i386_howto_table[10];
+ res->address = res[-1].address;
+ return TRUE;
+ }
+ return FALSE;
case BFD_MACH_O_GENERIC_RELOC_SECTDIFF:
+ if (reloc->r_length == 2)
+ {
+ res->howto = &i386_howto_table[5];
+ return TRUE;
+ }
+ else if (reloc->r_length == 1)
+ {
+ res->howto = &i386_howto_table[8];
+ return TRUE;
+ }
+ return FALSE;
case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF:
- if (reloc->r_length != 2)
- return FALSE;
- res->howto = &i386_howto_table[5];
- return TRUE;
+ if (reloc->r_length == 2)
+ {
+ res->howto = &i386_howto_table[6];
+ return TRUE;
+ }
+ else if (reloc->r_length == 1)
+ {
+ res->howto = &i386_howto_table[9];
+ return TRUE;
+ }
+ return FALSE;
default:
return FALSE;
}
@@ -178,20 +223,26 @@ bfd_mach_o_i386_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
rinfo->r_scattered = 1;
rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF;
rinfo->r_pcrel = 0;
- rinfo->r_length = 2;
+ rinfo->r_length = rel->howto->size;
rinfo->r_extern = 0;
- rinfo->r_value = (*rel->sym_ptr_ptr)->value
- + (*rel->sym_ptr_ptr)->section->vma;
+ rinfo->r_value = rel->addend;
+ break;
+ case BFD_RELOC_MACH_O_LOCAL_SECTDIFF:
+ rinfo->r_scattered = 1;
+ rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF;
+ rinfo->r_pcrel = 0;
+ rinfo->r_length = rel->howto->size;
+ rinfo->r_extern = 0;
+ rinfo->r_value = rel->addend;
break;
case BFD_RELOC_MACH_O_PAIR:
rinfo->r_address = 0;
rinfo->r_scattered = 1;
rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR;
rinfo->r_pcrel = 0;
- rinfo->r_length = 2;
+ rinfo->r_length = rel->howto->size;
rinfo->r_extern = 0;
- rinfo->r_value = (*rel->sym_ptr_ptr)->value
- + (*rel->sym_ptr_ptr)->section->vma;
+ rinfo->r_value = rel->addend;
break;
default:
return FALSE;
@@ -280,10 +331,66 @@ bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
return FALSE;
}
+static const mach_o_section_name_xlat text_section_names_xlat[] =
+ {
+ { ".symbol_stub", "__symbol_stub",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
+ 0},
+ { ".picsymbol_stub", "__picsymbol_stub",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS,
+ 0},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+static const mach_o_section_name_xlat data_section_names_xlat[] =
+ {
+ /* The first two are recognized by i386, but not emitted for x86 by
+ modern GCC. */
+ { ".non_lazy_symbol_pointer", "__nl_symbol_ptr",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer", "__la_symbol_ptr",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer2", "__la_sym_ptr2",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { ".lazy_symbol_pointer3", "__la_sym_ptr3",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+static const mach_o_section_name_xlat import_section_names_xlat[] =
+ {
+ { ".picsymbol_stub3", "__jump_table",
+ SEC_CODE | SEC_LOAD, BFD_MACH_O_S_SYMBOL_STUBS,
+ BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
+ | BFD_MACH_O_S_SELF_MODIFYING_CODE,
+ 6},
+ { ".non_lazy_symbol_pointer_x86", "__pointers",
+ SEC_DATA | SEC_LOAD, BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS,
+ BFD_MACH_O_S_ATTR_NONE, 2},
+ { NULL, NULL, 0, 0, 0, 0}
+ };
+
+const mach_o_segment_name_xlat mach_o_i386_segsec_names_xlat[] =
+ {
+ { "__TEXT", text_section_names_xlat },
+ { "__DATA", data_section_names_xlat },
+ { "__IMPORT", import_section_names_xlat },
+ { NULL, NULL }
+ };
+
#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread
+#define bfd_mach_o_tgt_seg_table mach_o_i386_segsec_names_xlat
+#define bfd_mach_o_section_type_valid_for_tgt NULL
+
#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup
#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup
@@ -292,4 +399,5 @@ bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
#define TARGET_ARCHITECTURE bfd_arch_i386
#define TARGET_BIG_ENDIAN 0
#define TARGET_ARCHIVE 0
+#define TARGET_PRIORITY 0
#include "mach-o-target.c"
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