diff options
| author | Ian Rogers <irogers@google.com> | 2022-11-29 22:29:33 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-12-14 11:16:12 -0300 |
| commit | 5b7a29fb0b7d67e5d40cd6557e073afb6a7466ab (patch) | |
| tree | 596052d95fbed2a5cfc19c266ab74f9108578c58 /tools/perf/util/trace-event-info.c | |
| parent | fce9a619145181ca6a41253f7de3df56b1e4ad59 (diff) | |
perf util: Add host_is_bigendian to util.h
Avoid libtraceevent dependency for tep_is_bigendian or trace-event.h
dependency for bigendian. Add a new host_is_bigendian to util.h, using
the compiler defined __BYTE_ORDER__ when available.
Committer notes:
Added:
#else /* !__BYTE_ORDER__ */
On that nested #ifdef block, as per Namhyung's suggestion.
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: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20221130062935.2219247-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/trace-event-info.c')
| -rw-r--r-- | tools/perf/util/trace-event-info.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 892c323b4ac9..c24b3a15e319 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -26,6 +26,7 @@ #include <api/fs/tracing_path.h> #include "evsel.h" #include "debug.h" +#include "util.h" #define VERSION "0.6" #define MAX_EVENT_LENGTH 512 @@ -38,15 +39,6 @@ struct tracepoint_path { struct tracepoint_path *next; }; -int bigendian(void) -{ - unsigned char str[] = { 0x1, 0x2, 0x3, 0x4, 0x0, 0x0, 0x0, 0x0}; - unsigned int *ptr; - - ptr = (unsigned int *)(void *)str; - return *ptr == 0x01020304; -} - /* unfortunately, you can not stat debugfs or proc files for size */ static int record_file(const char *file, ssize_t hdr_sz) { @@ -79,7 +71,7 @@ static int record_file(const char *file, ssize_t hdr_sz) /* ugh, handle big-endian hdr_size == 4 */ sizep = (char*)&size; - if (bigendian()) + if (host_is_bigendian()) sizep += sizeof(u64) - hdr_sz; if (hdr_sz && pwrite(output_fd, sizep, hdr_sz, hdr_pos) < 0) { @@ -564,7 +556,7 @@ static int tracing_data_header(void) return -1; /* save endian */ - if (bigendian()) + if (host_is_bigendian()) buf[0] = 1; else buf[0] = 0; |