diff options
Diffstat (limited to 'bfd/elf64-x86-64.c')
| -rw-r--r-- | bfd/elf64-x86-64.c | 78 |
1 files changed, 77 insertions, 1 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index e0e6c16..6d92c79 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -6896,8 +6896,80 @@ elf_x86_64_relocs_compatible (const bfd_target *input, && _bfd_elf_relocs_compatible (input, output)); } +/* Parse x86-64 GNU properties. */ + +static enum elf_property_kind +elf_x86_64_parse_gnu_properties (bfd *abfd, unsigned int type, + bfd_byte *ptr, unsigned int datasz) +{ + elf_property *prop; + + switch (type) + { + case GNU_PROPERTY_X86_ISA_1_USED: + case GNU_PROPERTY_X86_ISA_1_NEEDED: + if (datasz != 4) + { + _bfd_error_handler + ((type == GNU_PROPERTY_X86_ISA_1_USED + ? _("error: %B: <corrupt x86 ISA used size: 0x%x>\n") + : _("error: %B: <corrupt x86 ISA needed size: 0x%x>\n")), + abfd, datasz); + return property_corrupt; + } + prop = _bfd_elf_get_property (abfd, type, datasz); + prop->u.number = bfd_h_get_32 (abfd, ptr); + prop->pr_kind = property_number; + break; + + default: + return property_ignored; + } + + return property_number; +} + +/* Merge x86-64 GNU property BPROP with APROP. If APROP isn't NULL, + return TRUE if APROP is updated. Otherwise, return TRUE if BPROP + should be merged with ABFD. */ + +static bfd_boolean +elf_x86_64_merge_gnu_properties (bfd *abfd ATTRIBUTE_UNUSED, + elf_property *aprop, + elf_property *bprop) +{ + unsigned int number; + bfd_boolean updated = FALSE; + unsigned int pr_type = aprop != NULL ? aprop->pr_type : bprop->pr_type; + + switch (pr_type) + { + case GNU_PROPERTY_X86_ISA_1_USED: + case GNU_PROPERTY_X86_ISA_1_NEEDED: + if (aprop != NULL && bprop != NULL) + { + number = aprop->u.number; + aprop->u.number = number | bprop->u.number; + updated = number != (unsigned int) aprop->u.number; + } + else + { + /* Return TRUE if APROP is NULL to indicate that BPROP should + be added to ABFD. */ + updated = aprop == NULL; + } + break; + + default: + /* Never should happen. */ + abort (); + } + + return updated; +} + static const struct bfd_elf_special_section - elf_x86_64_special_sections[]= +elf_x86_64_special_sections[]= { { STRING_COMMA_LEN (".gnu.linkonce.lb"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_X86_64_LARGE}, { STRING_COMMA_LEN (".gnu.linkonce.lr"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_X86_64_LARGE}, @@ -6988,6 +7060,10 @@ static const struct bfd_elf_special_section ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) #define elf_backend_fixup_symbol \ elf_x86_64_fixup_symbol +#define elf_backend_parse_gnu_properties \ + elf_x86_64_parse_gnu_properties +#define elf_backend_merge_gnu_properties \ + elf_x86_64_merge_gnu_properties #include "elf64-target.h" |