diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2024-10-11 19:08:50 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2024-12-02 12:24:29 +0100 |
| commit | c3cb6c158c64dc39838208d51dcd06d1990b371d (patch) | |
| tree | 9ef9e5ed45de26f53bc839aeaac057ff04ce1b93 /tools/objtool/include | |
| parent | e7e0eb53c2f0f68fe2577472ce2802a4efd9d7ce (diff) | |
objtool: Allow arch code to discover jump table size
In preparation for adding support for annotated jump tables, where
ELF relocations and symbols are used to describe the locations of jump
tables in the executable, refactor the jump table discovery logic so the
table size can be returned from arch_find_switch_table().
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20241011170847.334429-12-ardb+git@google.com
Diffstat (limited to 'tools/objtool/include')
| -rw-r--r-- | tools/objtool/include/objtool/check.h | 5 | ||||
| -rw-r--r-- | tools/objtool/include/objtool/special.h | 3 |
2 files changed, 6 insertions, 2 deletions
diff --git a/tools/objtool/include/objtool/check.h b/tools/objtool/include/objtool/check.h index daa46f1f0965..e1cd13cd28a3 100644 --- a/tools/objtool/include/objtool/check.h +++ b/tools/objtool/include/objtool/check.h @@ -71,7 +71,10 @@ struct instruction { struct instruction *first_jump_src; union { struct symbol *_call_dest; - struct reloc *_jump_table; + struct { + struct reloc *_jump_table; + unsigned long _jump_table_size; + }; }; struct alternative *alts; struct symbol *sym; diff --git a/tools/objtool/include/objtool/special.h b/tools/objtool/include/objtool/special.h index 86d4af9c5aa9..e7ee7ffccefd 100644 --- a/tools/objtool/include/objtool/special.h +++ b/tools/objtool/include/objtool/special.h @@ -38,5 +38,6 @@ bool arch_support_alt_relocation(struct special_alt *special_alt, struct instruction *insn, struct reloc *reloc); struct reloc *arch_find_switch_table(struct objtool_file *file, - struct instruction *insn); + struct instruction *insn, + unsigned long *table_size); #endif /* _SPECIAL_H */ |