diff options
| author | Alexandre Chartre <alexandre.chartre@oracle.com> | 2025-11-21 10:53:23 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-11-21 15:30:11 +0100 |
| commit | d490aa21973fe66ec35ad825c19f88ac7f7abb27 (patch) | |
| tree | 9d4b97f57ea2b3c5834f2ce41531657d93f7d03a /tools/objtool/include | |
| parent | 26a453fb5637907a538d6ea5ef23651142811e15 (diff) | |
objtool: Identify the different types of alternatives
Alternative code, including jump table and exception table, is represented
with the same struct alternative structure. But there is no obvious way to
identify whether the struct represents alternative instructions, a jump
table or an exception table.
So add a type to struct alternative to clearly identify the type of
alternative.
Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://patch.msgid.link/20251121095340.464045-14-alexandre.chartre@oracle.com
Diffstat (limited to 'tools/objtool/include')
| -rw-r--r-- | tools/objtool/include/objtool/check.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/objtool/include/objtool/check.h b/tools/objtool/include/objtool/check.h index fde958683485..cbf4af58e29b 100644 --- a/tools/objtool/include/objtool/check.h +++ b/tools/objtool/include/objtool/check.h @@ -38,6 +38,18 @@ struct alt_group { bool ignore; }; +enum alternative_type { + ALT_TYPE_INSTRUCTIONS, + ALT_TYPE_JUMP_TABLE, + ALT_TYPE_EX_TABLE, +}; + +struct alternative { + struct alternative *next; + struct instruction *insn; + enum alternative_type type; +}; + #define INSN_CHUNK_BITS 8 #define INSN_CHUNK_SIZE (1 << INSN_CHUNK_BITS) #define INSN_CHUNK_MAX (INSN_CHUNK_SIZE - 1) |