diff options
| author | Peter Collingbourne <pcc@google.com> | 2026-03-04 22:06:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-25 13:08:26 +0300 |
| commit | 955387df028de9ff70962217ec9d7b1b4e7fb26e (patch) | |
| tree | e4f3132d74597c4556a19ec9089f95ad800a28ef /tools | |
| parent | 9937423c6647e076c542addd5e6bf7269041f423 (diff) | |
| download | linux-955387df028de9ff70962217ec9d7b1b4e7fb26e.tar.xz | |
perf disasm: Fix off-by-one bug in outside check
[ Upstream commit b3ce769203a99d6f3c6d6269ec09232a8c5da422 ]
If a branch target points to one past the end of a function, the branch
should be treated as a branch to another function.
This can happen e.g. with a tail call to a function that is laid out
immediately after the caller.
Fixes: 751b1783da784299 ("perf annotate: Mark jumps to outher functions with the call arrow")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Peter Collingbourne <pcc@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://linux-review.googlesource.com/id/Ide471112e82d68177e0faf08ca411d9fcf0a7bdf
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/disasm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c index 2dc93199ac25..8a6f450c6f8e 100644 --- a/tools/perf/util/disasm.c +++ b/tools/perf/util/disasm.c @@ -408,7 +408,7 @@ static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_s start = map__unmap_ip(map, sym->start); end = map__unmap_ip(map, sym->end); - ops->target.outside = target.addr < start || target.addr > end; + ops->target.outside = target.addr < start || target.addr >= end; /* * FIXME: things like this in _cpp_lex_token (gcc's cc1 program): |