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| author | Alan Modra <amodra@gmail.com> | 2026-01-03 13:51:21 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2026-01-04 13:14:22 +1030 |
| commit | ef6aff2be44b172a874df036c7d270301b47005a (patch) | |
| tree | 8377b27f2c95bf4c06f5e9b846f990e3374451e2 /gdb/python/python.c | |
| parent | 39d685b15e4ad7cf11c1d7a5cb032191c909405a (diff) | |
| download | binutils-ef6aff2be44b172a874df036c7d270301b47005a.zip binutils-ef6aff2be44b172a874df036c7d270301b47005a.tar.gz binutils-ef6aff2be44b172a874df036c7d270301b47005a.tar.bz2 | |
ELF OSABI matching
Currently a binutils ELF target with ELF_OSABI defined to something
other than the default ELFOSABI_NONE will only accept object files
with e_ident[EI_OSABI] having the value ELF_OSABI. An ELF target with
ELF_OSABI as ELFOSABI_NONE will match any e_ident[EI_OSABI] value, and
typically that target's object files will have ELFOSABI_NONE or one
other value in e_ident[EI_OSABI]. Given an object file with that
"other value" we'd like to be able to choose the correct target but
currently have no way to do so. This patch is a step towards
implementing better target matching.
It does so by adding an ELF_OSABI_EXACT to the target description,
setting that true for all targets that currently define ELF_OSABI, and
testing the new flag for exact matching. This will allow a future
patch to define ELF_OSABI without forcing exact matching but giving a
hint as to the best target match.
Some other tweaks are done as shown by the changelog below but no
user functional changes should be seen with this patch.
* elf-bfd.h (struct elf_backend_data): Add osabi_exact.
* elf.c (_bfd_elf_final_write_processing): Only set e_ident
from elf_osabi when osabi_exact.
* elfcode.h (elf_object_p): Test osabi_exact to reject
mismatching e_ident. Remove unnecessary EM_NONE test.
* elfcore.h (elf_core_file_p): Likewise.
* elfxx-target.h (ELF_OSABI_EXACT): Provide default of 0,
and init elfNN_bed.
(elf_match_priority): Handle ELF_OSABI_EXACT.
* elf32-arm.c (ELF_OSABI_EXACT): Define and undef along with
ELF_OSABI.
* elf32-hppa.c: Likewise.
* elf32-i386.c: Likewise.
* elf32-mips.c: Likewise.
* elf32-ppc.c: Likewise.
* elf32-tic6x.c: Likewise.
* elf32-visium.c: Likewise.
* elf64-alpha.c: Likewise.
* elf64-hppa.c: Likewise.
* elf64-ia64-vms.c: Likewise.
* elf64-mips.c: Likewise.
* elf64-ppc.c: Likewise.
* elf64-sparc.c: Likewise.
* elf64-x86-64.c: Likewise.
* elfn32-mips.c: Likewise.
* elfnn-ia64.c: Likewise.
* elf32-msp430.c: Likewise. Don't define ELF_OSABI to
ELFOSABI_NONE.
Diffstat (limited to 'gdb/python/python.c')
0 files changed, 0 insertions, 0 deletions