diff options
| author | Ian Rogers <irogers@google.com> | 2025-03-19 08:07:33 +0300 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-03-21 08:58:02 +0300 |
| commit | afffec6f032926f70fc9f43f5d07cdfa09a0a184 (patch) | |
| tree | 1fb478d7a3cb75845ec6b57ae62aaa5d760b056a /tools/perf/util/symbol-elf.c | |
| parent | 5c2938fe789c1876a35a1fbc24da3800b33adf26 (diff) | |
| download | linux-afffec6f032926f70fc9f43f5d07cdfa09a0a184.tar.xz | |
perf dso: Add support for reading the e_machine type for a dso
For ELF file dsos read the e_machine from the ELF header. For kernel
types assume the e_machine matches the perf tool. In other cases
return EM_NONE.
When reading from the ELF header use DSO__SWAP that may need
dso->needs_swap initializing. Factor out dso__swap_init to allow this.
Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Link: https://lore.kernel.org/r/20250319050741.269828-7-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/util/symbol-elf.c')
| -rw-r--r-- | tools/perf/util/symbol-elf.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index 3fa92697c457..fbf6d0f73af9 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -1174,33 +1174,6 @@ out: #endif -static int dso__swap_init(struct dso *dso, unsigned char eidata) -{ - static unsigned int const endian = 1; - - dso__set_needs_swap(dso, DSO_SWAP__NO); - - switch (eidata) { - case ELFDATA2LSB: - /* We are big endian, DSO is little endian. */ - if (*(unsigned char const *)&endian != 1) - dso__set_needs_swap(dso, DSO_SWAP__YES); - break; - - case ELFDATA2MSB: - /* We are little endian, DSO is big endian. */ - if (*(unsigned char const *)&endian != 0) - dso__set_needs_swap(dso, DSO_SWAP__YES); - break; - - default: - pr_err("unrecognized DSO data encoding %d\n", eidata); - return -EINVAL; - } - - return 0; -} - bool symsrc__possibly_runtime(struct symsrc *ss) { return ss->dynsym || ss->opdsec; |