Searched refs:trace_fd (Results 1 – 3 of 3) sorted by relevance
| /Linux-v4.19/tools/perf/ |
| D | builtin-ftrace.c | 279 int trace_fd; in __cmd_ftrace() local
343 trace_fd = open(trace_file, O_RDONLY); in __cmd_ftrace()
347 if (trace_fd < 0) { in __cmd_ftrace()
352 fcntl(trace_fd, F_SETFL, O_NONBLOCK); in __cmd_ftrace()
353 pollfd.fd = trace_fd; in __cmd_ftrace()
367 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
379 int n = read(trace_fd, buf, sizeof(buf)); in __cmd_ftrace()
387 close(trace_fd); in __cmd_ftrace()
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| /Linux-v4.19/samples/bpf/ |
| D | bpf_load.c | 655 int trace_fd; in read_trace_pipe() local
657 trace_fd = open(DEBUGFS "trace_pipe", O_RDONLY, 0); in read_trace_pipe()
658 if (trace_fd < 0) in read_trace_pipe()
665 sz = read(trace_fd, buf, sizeof(buf)); in read_trace_pipe()
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| /Linux-v4.19/Documentation/trace/ |
| D | ftrace.rst | 501 if (trace_fd < 0)
508 write(trace_fd, buf, n);
513 trace_fd = open("trace_marker", WR_ONLY);
2149 int trace_fd;
2153 trace_fd = open(tracing_file("tracing_on"), O_WRONLY);
2156 write(trace_fd, "0", 1);
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