diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 8cd7cd2274836f9b2725d1b54e80feb78d12f863..27fa3a3435779da75dd15f07ce07e49ccfdd3947 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -391,6 +391,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, #define EVSEL__PRINT_ONELINE (1<<4) #define EVSEL__PRINT_SRCLINE (1<<5) #define EVSEL__PRINT_UNKNOWN_AS_ADDR (1<<6) +#define EVSEL__PRINT_CALLCHAIN_ARROW (1<<7) struct callchain_cursor; diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c index ccb602397b60b043572c02f8b21c5919999257f2..53bb614feafb0a4d27b135abbca5e721d23ee4d5 100644 --- a/tools/perf/util/evsel_fprintf.c +++ b/tools/perf/util/evsel_fprintf.c @@ -108,7 +108,9 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, int print_oneline = print_opts & EVSEL__PRINT_ONELINE; int print_srcline = print_opts & EVSEL__PRINT_SRCLINE; int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR; + int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW; char s = print_oneline ? ' ' : '\t'; + bool first = true; if (sample->callchain) { struct addr_location node_al; @@ -124,6 +126,9 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " "); + if (print_arrow && !first) + printed += fprintf(fp, " <-"); + if (print_ip) printed += fprintf(fp, "%c%16" PRIx64, s, node->ip); @@ -158,6 +163,7 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, printed += fprintf(fp, "\n"); callchain_cursor_advance(cursor); + first = false; } }