diff options
| author | Stefano Sanfilippo <[email protected]> | 2016-10-13 03:59:42 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2016-10-24 11:07:40 -0300 |
| commit | 6760d77b708571b925e2dd2b61f847cbee6e0f21 (patch) | |
| tree | 3a694adb15c01e4a9a0e4822e310dbcdfb0f957d | |
| parent | 086f9f3d7897d8081b18b949caa631b937c5891e (diff) | |
perf jit: Check JITHEADER_VERSION
Check the version number when opening a jitdump file. Accept older
versions, but not newer ones.
Signed-off-by: Stefano Sanfilippo <[email protected]>
Signed-off-by: Ross McIlroy <[email protected]>
Reviewed-by: Stephane Eranian <[email protected]>
Cc: Anton Blanchard <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/util/jitdump.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c index 6a2688da3c4a..c9a941ef0f6d 100644 --- a/tools/perf/util/jitdump.c +++ b/tools/perf/util/jitdump.c @@ -180,6 +180,12 @@ jit_open(struct jit_buf_desc *jd, const char *name) header.elf_mach, jd->use_arch_timestamp); + if (header.version > JITHEADER_VERSION) { + pr_err("wrong jitdump version %u, expected " STR(JITHEADER_VERSION), + header.version); + goto error; + } + if (header.flags & JITDUMP_FLAGS_RESERVED) { pr_err("jitdump file contains invalid or unsupported flags 0x%llx\n", (unsigned long long)header.flags & JITDUMP_FLAGS_RESERVED); |