summaryrefslogtreecommitdiff
path: root/tools/perf
diff options
context:
space:
mode:
authorIan Rogers <irogers@google.com>2023-12-07 04:16:49 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-12-20 20:53:20 +0300
commitec49230cf6dda70437bf878281566dd82af9affa (patch)
treec86636e6cc5339feb08d44fcd65e8133612f1e02 /tools/perf
parent8d5847a61723b4dbb3da3b356925c4928ed14de2 (diff)
downloadlinux-ec49230cf6dda70437bf878281566dd82af9affa.tar.xz
perf debug: Expose debug file
Some dumping call backs need to be passed a FILE*. Expose debug file via an accessor API for a consistent way to do this. Catch the unlikely failure of it not being set. Switch two cases where stderr was being used instead of debug_file. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@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: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Colin Ian King <colin.i.king@gmail.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: German Gomez <german.gomez@arm.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Li Dong <lidong@vivo.com> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Ming Wang <wangming01@loongson.cn> Cc: Nick Terrell <terrelln@fb.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Vincent Whitchurch <vincent.whitchurch@axis.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: Yang Jihong <yangjihong1@huawei.com> Link: https://lore.kernel.org/r/20231207011722.1220634-16-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/debug.c22
-rw-r--r--tools/perf/util/debug.h1
2 files changed, 16 insertions, 7 deletions
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 88378c4c5dd9..e282b4ceb4d2 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -38,12 +38,21 @@ bool dump_trace = false, quiet = false;
int debug_ordered_events;
static int redirect_to_stderr;
int debug_data_convert;
-static FILE *debug_file;
+static FILE *_debug_file;
bool debug_display_time;
+FILE *debug_file(void)
+{
+ if (!_debug_file) {
+ pr_warning_once("debug_file not set");
+ debug_set_file(stderr);
+ }
+ return _debug_file;
+}
+
void debug_set_file(FILE *file)
{
- debug_file = file;
+ _debug_file = file;
}
void debug_set_display_time(bool set)
@@ -78,8 +87,8 @@ int veprintf(int level, int var, const char *fmt, va_list args)
if (use_browser >= 1 && !redirect_to_stderr) {
ui_helpline__vshow(fmt, args);
} else {
- ret = fprintf_time(debug_file);
- ret += vfprintf(debug_file, fmt, args);
+ ret = fprintf_time(debug_file());
+ ret += vfprintf(debug_file(), fmt, args);
}
}
@@ -107,9 +116,8 @@ static int veprintf_time(u64 t, const char *fmt, va_list args)
nsecs -= secs * NSEC_PER_SEC;
usecs = nsecs / NSEC_PER_USEC;
- ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ",
- secs, usecs);
- ret += vfprintf(stderr, fmt, args);
+ ret = fprintf(debug_file(), "[%13" PRIu64 ".%06" PRIu64 "] ", secs, usecs);
+ ret += vfprintf(debug_file(), fmt, args);
return ret;
}
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index f99468a7f681..de8870980d44 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -77,6 +77,7 @@ int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __printf(4, 5)
int veprintf(int level, int var, const char *fmt, va_list args);
int perf_debug_option(const char *str);
+FILE *debug_file(void);
void debug_set_file(FILE *file);
void debug_set_display_time(bool set);
void perf_debug_setup(void);