Searched refs:trace_fd (Results 1 – 6 of 6) sorted by relevance
| /linux-5.19.10/tools/perf/ |
| D | builtin-ftrace.c | 566 int trace_fd; in __cmd_ftrace() local
611 trace_fd = open(trace_file, O_RDONLY); in __cmd_ftrace()
615 if (trace_fd < 0) { in __cmd_ftrace()
620 fcntl(trace_fd, F_SETFL, O_NONBLOCK); in __cmd_ftrace()
621 pollfd.fd = trace_fd; in __cmd_ftrace()
648 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
668 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
676 close(trace_fd); in __cmd_ftrace()
878 int trace_fd; in __cmd_latency() local
898 trace_fd = prepare_func_latency(ftrace); in __cmd_latency()
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| D | builtin-record.c | 272 static int record__aio_write(struct aiocb *cblock, int trace_fd, in record__aio_write() argument
277 cblock->aio_fildes = trace_fd; in record__aio_write()
432 int trace_fd = rec->session->data->file.fd; in record__aio_push() local
447 ret = record__aio_write(&(map->aio.cblocks[idx]), trace_fd, aio.data, aio.size, *off); in record__aio_push()
466 static off_t record__aio_get_pos(int trace_fd) in record__aio_get_pos() argument
468 return lseek(trace_fd, 0, SEEK_CUR); in record__aio_get_pos()
471 static void record__aio_set_pos(int trace_fd, off_t pos) in record__aio_set_pos() argument
473 lseek(trace_fd, pos, SEEK_SET); in record__aio_set_pos()
522 static off_t record__aio_get_pos(int trace_fd __maybe_unused) in record__aio_get_pos()
527 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-5.19.10/tools/testing/selftests/bpf/ |
| D | trace_helpers.c | 131 int trace_fd; in read_trace_pipe() local
133 trace_fd = open(DEBUGFS "trace_pipe", O_RDONLY, 0); in read_trace_pipe()
134 if (trace_fd < 0) in read_trace_pipe()
141 sz = read(trace_fd, buf, sizeof(buf) - 1); in read_trace_pipe()
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| /linux-5.19.10/samples/bpf/ |
| D | hbm.c | 76 int trace_fd; in read_trace_pipe2() local
80 trace_fd = open(DEBUGFS "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()
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| /linux-5.19.10/tools/tracing/latency/ |
| D | latency-collector.c | 1139 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()
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| /linux-5.19.10/Documentation/trace/ |
| D | ftrace.rst | 555 if (trace_fd < 0)
562 write(trace_fd, buf, n);
567 trace_fd = open("trace_marker", WR_ONLY);
2314 int trace_fd;
2318 trace_fd = open(tracing_file("tracing_on"), O_WRONLY);
2321 write(trace_fd, "0", 1);
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