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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-15 16:01:42 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-10-15 16:01:42 -0300 |
| commit | 97c2a7806f691f4124914623baa54223416a8cef (patch) | |
| tree | 2bd4ba52c66d8a144945f258bf14c54c6fffa541 /tools/perf/builtin-trace.c | |
| parent | f19a85c68cb4d5bb90c587d9390e1ce2716d6160 (diff) | |
| download | linux-97c2a7806f691f4124914623baa54223416a8cef.tar.gz linux-97c2a7806f691f4124914623baa54223416a8cef.tar.xz | |
libbeauty: Add a strarray__scnprintf_suffix() method
In some cases, like with x86 IRQ vectors, the common part in names is at
the end, so a suffix, add a scnprintf function for that.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-agxbj6es2ke3rehwt4gkdw23@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 907eaf316f5b..58bbe85d4166 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -423,6 +423,20 @@ out_delete: ({ struct syscall_tp *fields = evsel->priv; \ fields->name.pointer(&fields->name, sample); }) +size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val) +{ + int idx = val - sa->offset; + + if (idx < 0 || idx >= sa->nr_entries || sa->entries[idx] == NULL) { + size_t printed = scnprintf(bf, size, intfmt, val); + if (show_suffix) + printed += scnprintf(bf + printed, size - printed, " /* %s??? */", sa->prefix); + return printed; + } + + return scnprintf(bf, size, "%s%s", sa->entries[idx], show_suffix ? sa->prefix : ""); +} + size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val) { int idx = val - sa->offset; |