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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>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-10-15 16:01:42 -03:00
parent f19a85c68c
commit 97c2a7806f
2 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
tools/perf/builtin-trace.c
View File

@ -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;

1
tools/perf/trace/beauty/beauty.h
View File

@ -28,6 +28,7 @@ struct strarray {
}
size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_prefix, int val);
size_t strarray__scnprintf_suffix(struct strarray *sa, char *bf, size_t size, const char *intfmt, bool show_suffix, int val);
size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, bool show_prefix, unsigned long flags);
bool strarray__strtoul(struct strarray *sa, char *bf, size_t size, u64 *ret);