From 0df50e0b0e0f315c0d5e2ce8556aafe1403b4a4b Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 12 Dec 2018 13:47:40 -0300 Subject: [PATCH] perf trace: Avoid using raw_syscalls in duplicity with eBPF augmentation So when we do something like: # perf trace -e open*,augmented_raw_syscalls.o We need to set trace->trace_syscalls because there is logic that use that when mixing strace-like output with other events, such as scheduler tracepoints, but with that set we ended up having multiple raw_syscalls:sys_{enter,exit} setup, which garbled the output, so check if trace->augmented_raw_syscalls is set and avoid the two extra tracepoints. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: https://lkml.kernel.org/n/tip-kjmnbrlgu0c38co1ye8egbsb@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-trace.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 76e4fa04d824..f9eb5bc4fefb 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -2721,11 +2721,13 @@ static int trace__run(struct trace *trace, int argc, const char **argv) trace->live = true; - if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) - goto out_error_raw_syscalls; + if (!trace->raw_augmented_syscalls) { + if (trace->trace_syscalls && trace__add_syscall_newtp(trace)) + goto out_error_raw_syscalls; - if (trace->trace_syscalls) - trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); + if (trace->trace_syscalls) + trace->vfs_getname = perf_evlist__add_vfs_getname(evlist); + } if ((trace->trace_pgfaults & TRACE_PFMAJ)) { pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ); @@ -2825,8 +2827,10 @@ static int trace__run(struct trace *trace, int argc, const char **argv) if (err < 0) goto out_errno; - pr_debug("event qualifier tracepoint filter: %s\n", - trace->syscalls.events.sys_exit->filter); + if (trace->syscalls.events.sys_exit) { + pr_debug("event qualifier tracepoint filter: %s\n", + trace->syscalls.events.sys_exit->filter); + } } err = perf_evlist__apply_filters(evlist, &evsel); -- GitLab