diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2016-04-28 03:37:14 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-28 09:58:58 -0300 |
| commit | 909b0360ae358f212f526e171ea4ef433b1b4103 (patch) | |
| tree | 7c88d58c92e289b1f2676837cc28339a3d8ff6c8 /tools/perf/util/probe-finder.c | |
| parent | 81d64f46d41c428474c64e5c59e5458b7f50d9fd (diff) | |
perf probe: Use strbuf for making strings
Replace many fixed-length char array with strbuf to stringify
perf_probe_event and probe_trace_event etc.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20160427183713.23446.97377.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-finder.c')
| -rw-r--r-- | tools/perf/util/probe-finder.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index b3bd0fba0237..9f688758b000 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -553,7 +553,7 @@ static int convert_variable(Dwarf_Die *vr_die, struct probe_finder *pf) static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf) { Dwarf_Die vr_die; - char buf[32], *ptr; + char *buf, *ptr; int ret = 0; /* Copy raw parameters */ @@ -563,13 +563,13 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf) if (pf->pvar->name) pf->tvar->name = strdup(pf->pvar->name); else { - ret = synthesize_perf_probe_arg(pf->pvar, buf, 32); - if (ret < 0) - return ret; + buf = synthesize_perf_probe_arg(pf->pvar); + if (!buf) + return -ENOMEM; ptr = strchr(buf, ':'); /* Change type separator to _ */ if (ptr) *ptr = '_'; - pf->tvar->name = strdup(buf); + pf->tvar->name = buf; } if (pf->tvar->name == NULL) return -ENOMEM; @@ -1334,8 +1334,8 @@ static int collect_variables_cb(Dwarf_Die *die_mem, void *data) if (ret2 == 0) { strlist__add(vl->vars, strbuf_detach(&buf, NULL)); - } - strbuf_release(&buf); + } else + strbuf_release(&buf); } } |