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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-28 12:55:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-28 12:55:55 -0700 |
| commit | c4a227d89f758e582fd167bb15245f2704de99ef (patch) | |
| tree | f5b6e0091e6543c14d1cd7cf1f93e097a96bbd64 /tools/perf/util/event.c | |
| parent | 87367a0b71a5188e34a913c05673b5078f71a64d (diff) | |
| parent | f506b3dc0ec454a16d40cab9ee5d75435b39dc50 (diff) | |
| download | blackbird-op-linux-c4a227d89f758e582fd167bb15245f2704de99ef.tar.gz blackbird-op-linux-c4a227d89f758e582fd167bb15245f2704de99ef.zip | |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (25 commits)
perf: Fix SIGIO handling
perf top: Don't stop if no kernel symtab is found
perf top: Handle kptr_restrict
perf top: Remove unused macro
perf events: initialize fd array to -1 instead of 0
perf tools: Make sure kptr_restrict warnings fit 80 col terms
perf tools: Fix build on older systems
perf symbols: Handle /proc/sys/kernel/kptr_restrict
perf: Remove duplicate headers
ftrace: Add internal recursive checks
tracing: Update btrfs's tracepoints to use u64 interface
tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine
ftrace: Set ops->flag to enabled even on static function tracing
tracing: Have event with function tracer check error return
ftrace: Have ftrace_startup() return failure code
jump_label: Check entries limit in __jump_label_update
ftrace/recordmcount: Avoid STT_FUNC symbols as base on ARM
scripts/tags.sh: Add magic for trace-events for etags too
scripts/tags.sh: Fix ctags for DEFINE_EVENT()
x86/ftrace: Fix compiler warning in ftrace.c
...
Diffstat (limited to 'tools/perf/util/event.c')
| -rw-r--r-- | tools/perf/util/event.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 6635fcd11ca5..0fe9adf76379 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -553,9 +553,18 @@ static int perf_event__process_kernel_mmap(union perf_event *event, goto out_problem; perf_event__set_kernel_mmap_len(event, machine->vmlinux_maps); - perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, - symbol_name, - event->mmap.pgoff); + + /* + * Avoid using a zero address (kptr_restrict) for the ref reloc + * symbol. Effectively having zero here means that at record + * time /proc/sys/kernel/kptr_restrict was non zero. + */ + if (event->mmap.pgoff != 0) { + perf_session__set_kallsyms_ref_reloc_sym(machine->vmlinux_maps, + symbol_name, + event->mmap.pgoff); + } + if (machine__is_default_guest(machine)) { /* * preload dso of guest kernel and modules |
