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| author | Namhyung Kim <namhyung@kernel.org> | 2023-12-12 08:05:46 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-12-14 23:08:53 +0100 |
| commit | 4fb54994b2360ab5029ee3a959161f6fe6bbb349 (patch) | |
| tree | b5b04e85703c802d4e4e56c35b130077f94a6e8c /tools | |
| parent | perf unwind-libdw: Handle JIT-generated DSOs properly (diff) | |
| download | linux-4fb54994b2360ab5029ee3a959161f6fe6bbb349.tar.xz linux-4fb54994b2360ab5029ee3a959161f6fe6bbb349.zip | |
perf unwind-libunwind: Fix base address for .eh_frame
The base address of a DSO mapping should start at the start of the file.
Usually DSOs are mapped from the pgoff 0 so it doesn't matter when it
uses the start of the map address.
But generated DSOs for JIT codes doesn't start from the 0 so it should
subtract the offset to calculate the .eh_frame table offsets correctly.
Fixes: dc2cf4ca866f5715 ("perf unwind: Fix segbase for ld.lld linked objects")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Fangrui Song <maskray@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Pablo Galindo <pablogsal@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20231212070547.612536-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/unwind-libunwind-local.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c index c0641882fd2f..5e5c3395a499 100644 --- a/tools/perf/util/unwind-libunwind-local.c +++ b/tools/perf/util/unwind-libunwind-local.c @@ -327,7 +327,7 @@ static int read_unwind_spec_eh_frame(struct dso *dso, struct unwind_info *ui, maps__for_each_entry(thread__maps(ui->thread), map_node) { struct map *map = map_node->map; - u64 start = map__start(map); + u64 start = map__start(map) - map__pgoff(map); if (map__dso(map) == dso && start < base_addr) base_addr = start; |