diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2012-05-08 11:35:37 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-05-08 11:35:37 -0600 |
| commit | 7b96c686223a5c902d6a59c7d178f3904f0ab757 (patch) | |
| tree | fe328ed56ad3719de3cfebad72ef74e34f1ed92b /tools/perf/builtin-report.c | |
| parent | f141ed65f256ec036c7fba604da6b7c448096ef9 (diff) | |
| parent | d48b97b403d23f6df0b990cee652bdf9a52337a3 (diff) | |
| download | olio-linux-3.10-7b96c686223a5c902d6a59c7d178f3904f0ab757.tar.xz olio-linux-3.10-7b96c686223a5c902d6a59c7d178f3904f0ab757.zip | |
Merge tag 'v3.4-rc6' into gpio/next
Linux 3.4-rc6
Diffstat (limited to 'tools/perf/builtin-report.c')
| -rw-r--r-- | tools/perf/builtin-report.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 2e317438980..cdae9b2db1c 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -374,16 +374,23 @@ static int __cmd_report(struct perf_report *rep) (kernel_map->dso->hit && (kernel_kmap->ref_reloc_sym == NULL || kernel_kmap->ref_reloc_sym->addr == 0))) { - const struct dso *kdso = kernel_map->dso; + const char *desc = + "As no suitable kallsyms nor vmlinux was found, kernel samples\n" + "can't be resolved."; + + if (kernel_map) { + const struct dso *kdso = kernel_map->dso; + if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { + desc = "If some relocation was applied (e.g. " + "kexec) symbols may be misresolved."; + } + } ui__warning( "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" "Samples in kernel modules can't be resolved as well.\n\n", - RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION]) ? -"As no suitable kallsyms nor vmlinux was found, kernel samples\n" -"can't be resolved." : -"If some relocation was applied (e.g. kexec) symbols may be misresolved."); + desc); } if (dump_trace) { |