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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-21 17:07:17 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-21 17:07:17 (GMT) |
commit | 401c58fcbbf570e7e4a8ee0e21ffd829deb4de0b (patch) | |
tree | 6c61f2d3288f0f299e41e70b79bf91b99ae27764 /tools/perf/util/probe-finder.c | |
parent | 7b08d618a232aa3bfc538cf1eccd9ce0c239bf03 (diff) | |
parent | cf230918cda19532e4a5cc4f0d5c82fa7e5e94f6 (diff) | |
download | linux-401c58fcbbf570e7e4a8ee0e21ffd829deb4de0b.tar.xz |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"This is larger than usual: the main reason are the ARM symbol lookup
speedups that came in late and were hard to resist.
There's also a kprobes fix and various tooling fixes, plus the minimal
re-enablement of the mmap2 support interface"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
x86/kprobes: Fix build errors and blacklist context_track_user
perf tests: Add test for closing dso objects on EMFILE error
perf tests: Add test for caching dso file descriptors
perf tests: Allow reuse of test_file function
perf tests: Spawn child for each test
perf tools: Add dso__data_* interface descriptons
perf tools: Allow to close dso fd in case of open failure
perf tools: Add file size check and factor dso__data_read_offset
perf tools: Cache dso data file descriptor
perf tools: Add global count of opened dso objects
perf tools: Add global list of opened dso objects
perf tools: Add data_fd into dso object
perf tools: Separate dso data related variables
perf tools: Cache register accesses for unwind processing
perf record: Fix to honor user freq/interval properly
perf timechart: Reflow documentation
perf probe: Improve error messages in --line option
perf probe: Improve an error message of perf probe --vars mode
perf probe: Show error code and description in verbose mode
perf probe: Improve error message for unknown member of data structure
...
Diffstat (limited to 'tools/perf/util/probe-finder.c')
-rw-r--r-- | tools/perf/util/probe-finder.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 9d8eb26..98e3047 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -573,14 +573,13 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf) if (!die_find_variable_at(sc_die, pf->pvar->var, pf->addr, &vr_die)) { /* Search again in global variables */ if (!die_find_variable_at(&pf->cu_die, pf->pvar->var, 0, &vr_die)) + pr_warning("Failed to find '%s' in this function.\n", + pf->pvar->var); ret = -ENOENT; } if (ret >= 0) ret = convert_variable(&vr_die, pf); - if (ret < 0) - pr_warning("Failed to find '%s' in this function.\n", - pf->pvar->var); return ret; } @@ -1281,7 +1280,11 @@ out: return ret; } -/* Find available variables at given probe point */ +/* + * Find available variables at given probe point + * Return the number of found probe points. Return 0 if there is no + * matched probe point. Return <0 if an error occurs. + */ int debuginfo__find_available_vars_at(struct debuginfo *dbg, struct perf_probe_event *pev, struct variable_list **vls, |