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-rw-r--r--tools/perf/util/callchain.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 8d9db454f1a9..9a42382b3921 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -25,6 +25,84 @@
__thread struct callchain_cursor callchain_cursor;
+int
+parse_callchain_report_opt(const char *arg)
+{
+ char *tok, *tok2;
+ char *endptr;
+
+ symbol_conf.use_callchain = true;
+
+ if (!arg)
+ return 0;
+
+ tok = strtok((char *)arg, ",");
+ if (!tok)
+ return -1;
+
+ /* get the output mode */
+ if (!strncmp(tok, "graph", strlen(arg))) {
+ callchain_param.mode = CHAIN_GRAPH_ABS;
+
+ } else if (!strncmp(tok, "flat", strlen(arg))) {
+ callchain_param.mode = CHAIN_FLAT;
+ } else if (!strncmp(tok, "fractal", strlen(arg))) {
+ callchain_param.mode = CHAIN_GRAPH_REL;
+ } else if (!strncmp(tok, "none", strlen(arg))) {
+ callchain_param.mode = CHAIN_NONE;
+ symbol_conf.use_callchain = false;
+ return 0;
+ } else {
+ return -1;
+ }
+
+ /* get the min percentage */
+ tok = strtok(NULL, ",");
+ if (!tok)
+ goto setup;
+
+ callchain_param.min_percent = strtod(tok, &endptr);
+ if (tok == endptr)
+ return -1;
+
+ /* get the print limit */
+ tok2 = strtok(NULL, ",");
+ if (!tok2)
+ goto setup;
+
+ if (tok2[0] != 'c') {
+ callchain_param.print_limit = strtoul(tok2, &endptr, 0);
+ tok2 = strtok(NULL, ",");
+ if (!tok2)
+ goto setup;
+ }
+
+ /* get the call chain order */
+ if (!strncmp(tok2, "caller", strlen("caller")))
+ callchain_param.order = ORDER_CALLER;
+ else if (!strncmp(tok2, "callee", strlen("callee")))
+ callchain_param.order = ORDER_CALLEE;
+ else
+ return -1;
+
+ /* Get the sort key */
+ tok2 = strtok(NULL, ",");
+ if (!tok2)
+ goto setup;
+ if (!strncmp(tok2, "function", strlen("function")))
+ callchain_param.key = CCKEY_FUNCTION;
+ else if (!strncmp(tok2, "address", strlen("address")))
+ callchain_param.key = CCKEY_ADDRESS;
+ else
+ return -1;
+setup:
+ if (callchain_register_param(&callchain_param) < 0) {
+ pr_err("Can't register callchain params\n");
+ return -1;
+ }
+ return 0;
+}
+
static void
rb_insert_callchain(struct rb_root *root, struct callchain_node *chain,
enum chain_mode mode)