diff options
| author | Peter Collingbourne <pcc@google.com> | 2026-03-03 15:00:54 -0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2026-03-04 18:05:18 -0800 |
| commit | b1718b0367ba31e8db273e3896ebd1707bcbe59e (patch) | |
| tree | d2e579a32704677a5e59d918378436a6b3d75055 | |
| parent | 6910944bf0b92fea63d5a7aeed69e4b9c14fd01b (diff) | |
perf annotate: Specify llvm features="+all" for aarch64
This is consistent with what llvm-objdump does (see [1]) and allows
the LLVM disassembler to disassemble instructions not in the base
instruction set.
[1] https://reviews.llvm.org/D127741
Link: https://linux-review.googlesource.com/id/I52e4fef18d2e12b45f875231fa9d3efff2538fd4
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | tools/perf/util/llvm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/util/llvm.c b/tools/perf/util/llvm.c index 0d126d233c01..a0deb742a733 100644 --- a/tools/perf/util/llvm.c +++ b/tools/perf/util/llvm.c @@ -153,11 +153,17 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, /*get_op_info=*/NULL, symbol_lookup_callback); } else { char triplet[64]; + const char *features = NULL; scnprintf(triplet, sizeof(triplet), "%s-linux-gnu", args->arch->name); - disasm = LLVMCreateDisasm(triplet, &storage, /*tag_type=*/0, - /*get_op_info=*/NULL, symbol_lookup_callback); + if (args->arch->id.e_machine == EM_AARCH64) + features = "+all"; + disasm = LLVMCreateDisasmCPUFeatures(triplet, /*cpu=*/"", + features, &storage, + /*tag_type=*/0, + /*get_op_info=*/NULL, + symbol_lookup_callback); } if (disasm == NULL) |