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| author |   Stefano Sanfilippo <ssanfilippo@chromium.org> | 2016-10-13 03:59:42 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-24 11:07:40 -0300 |
| commit | 6760d77b708571b925e2dd2b61f847cbee6e0f21 (patch) | |
| tree | 3a694adb15c01e4a9a0e4822e310dbcdfb0f957d /tools/perf/util/jitdump.c | |
| parent | perf jit: Generate .eh_frame/.eh_frame_hdr in DSO (diff) | |
| download | linux-dev-6760d77b708571b925e2dd2b61f847cbee6e0f21.tar.xz linux-dev-6760d77b708571b925e2dd2b61f847cbee6e0f21.zip | |
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 <ssanfilippo@chromium.org>
Signed-off-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Stephane Eranian <eranian@google.com>
Cc: Anton Blanchard <anton@ozlabs.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1476356383-30100-9-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/jitdump.c')
| -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); |