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authorHe Kuang <hekuang@huawei.com>2016-05-19 13:47:37 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-05-20 16:43:58 +0200
commita706670900073d236938d539d1109338d64b47bb (patch)
treef443923e3e27b3c9b667ea284f409be52a72be4e /tools/perf/util/symbol.c
parentperf trace: Only auto set call-graph to "dwarf" when syscalls are being traced (diff)
downloadlinux-a706670900073d236938d539d1109338d64b47bb.tar.xz
linux-a706670900073d236938d539d1109338d64b47bb.zip
perf tools: Set buildid dir under symfs when --symfs is provided
This patch moves the reference of buildid dir to 'symfs/.debug' and skips the local buildid dir when '--symfs' is given, so that every single file opened by perf is relative to symfs directory now. Signed-off-by: He Kuang <hekuang@huawei.com> Acked-by: David Ahern <dsahern@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1463658462-85131-2-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/symbol.c')
-rw-r--r--tools/perf/util/symbol.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 2252b545ff43..20f9cb32b703 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2033,3 +2033,26 @@ void symbol__exit(void)
symbol_conf.sym_list = symbol_conf.dso_list = symbol_conf.comm_list = NULL;
symbol_conf.initialized = false;
}
+
+int symbol__config_symfs(const struct option *opt __maybe_unused,
+ const char *dir, int unset __maybe_unused)
+{
+ char *bf = NULL;
+ int ret;
+
+ symbol_conf.symfs = strdup(dir);
+ if (symbol_conf.symfs == NULL)
+ return -ENOMEM;
+
+ /* skip the locally configured cache if a symfs is given, and
+ * config buildid dir to symfs/.debug
+ */
+ ret = asprintf(&bf, "%s/%s", dir, ".debug");
+ if (ret < 0)
+ return -ENOMEM;
+
+ set_buildid_dir(bf);
+
+ free(bf);
+ return 0;
+}