d3b59a38bc
Separating test__open_syscall_event test from the builtin-test into open-syscall object. Adding util object under tests directory to gather help functions common to more tests. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1352508412-16914-3-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
30 lines
518 B
C
30 lines
518 B
C
#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "tests.h"
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#include "debugfs.h"
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int trace_event__id(const char *evname)
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{
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char *filename;
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int err = -1, fd;
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if (asprintf(&filename,
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"%s/syscalls/%s/id",
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tracing_events_path, evname) < 0)
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return -1;
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fd = open(filename, O_RDONLY);
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if (fd >= 0) {
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char id[16];
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if (read(fd, id, sizeof(id)) > 0)
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err = atoi(id);
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close(fd);
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}
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free(filename);
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return err;
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}
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