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Searched refs:trace_fd (Results 1 – 5 of 5) sorted by relevance

/linux/tools/perf/
H A Dbuiltin-ftrace.c742 int trace_fd; in __cmd_ftrace() local
778 trace_fd = open(trace_file, O_RDONLY); in __cmd_ftrace()
782 if (trace_fd < 0) { in __cmd_ftrace()
787 fcntl(trace_fd, F_SETFL, O_NONBLOCK); in __cmd_ftrace()
788 pollfd.fd = trace_fd; in __cmd_ftrace()
815 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
837 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
845 close(trace_fd); in __cmd_ftrace()
1126 int trace_fd; in __cmd_latency() local
1134 trace_fd = prepare_func_latency(ftrace); in __cmd_latency()
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H A Dbuiltin-record.c292 static int record__aio_write(struct aiocb *cblock, int trace_fd, in record__aio_write() argument
297 cblock->aio_fildes = trace_fd; in record__aio_write()
456 int trace_fd = rec->session->data->file.fd; in record__aio_push() local
471 ret = record__aio_write(&(map->aio.cblocks[idx]), trace_fd, aio.data, aio.size, *off); in record__aio_push()
490 static off_t record__aio_get_pos(int trace_fd) in record__aio_get_pos() argument
492 return lseek(trace_fd, 0, SEEK_CUR); in record__aio_get_pos()
495 static void record__aio_set_pos(int trace_fd, off_t pos) in record__aio_set_pos() argument
497 lseek(trace_fd, pos, SEEK_SET); in record__aio_set_pos()
546 static off_t record__aio_get_pos(int trace_fd __maybe_unused) in record__aio_get_pos()
551 static void record__aio_set_pos(int trace_fd __maybe_unused, off_t pos __maybe_unused) in record__aio_set_pos()
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/linux/samples/bpf/
H A Dhbm.c76 int trace_fd; in read_trace_pipe2() local
80 trace_fd = open(TRACEFS "trace_pipe", O_RDONLY, 0); in read_trace_pipe2()
81 if (trace_fd < 0) { in read_trace_pipe2()
98 sz = read(trace_fd, buf, sizeof(buf) - 1); in read_trace_pipe2()
/linux/tools/tracing/latency/
H A Dlatency-collector.c1139 int trace_fd; in print_tracefile() local
1152 trace_fd = open(debug_tracefile, O_RDONLY); in print_tracefile()
1154 if (trace_fd < 0) { in print_tracefile()
1195 bytes = read(trace_fd, p, bufspace); in print_tracefile()
1200 if (unlikely(close(trace_fd) != 0)) in print_tracefile()
1211 if (unlikely(close(trace_fd) != 0)) in print_tracefile()
/linux/Documentation/trace/
H A Dftrace.rst630 if (trace_fd < 0)
637 write(trace_fd, buf, n);
642 trace_fd = open("trace_marker", O_WRONLY);
2440 int trace_fd;
2444 trace_fd = open(tracing_file("tracing_on"), O_WRONLY);
2447 write(trace_fd, "0", 1);