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perf trace beauty fcntl: Augment the return of F_DUPFD(_CLOEXEC)

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Using the existing 'fd' beautifier, now we can see the path for the just
dup'ed fd:

 18031.338 ( 0.009 ms): gnome-terminal/2472 fcntl(fd: 55, cmd: DUPFD_CLOEXEC) = 56</memfd:gdk-wayland (deleted)>

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-z0ggo126p2eobfwnjw9z16tw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-07-14 15:24:19 -03:00
parent fc65eb8213
commit 07a0572439
1 changed files with 5 additions and 1 deletions
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6
tools/perf/trace/beauty/fcntl.c
View file

@ -30,6 +30,10 @@ size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_ar
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd);
goto mask_arg;
}
if (arg->val == F_DUPFD_CLOEXEC || arg->val == F_DUPFD) {
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd);
goto out;
}
/*
* Some commands ignore the third fcntl argument, "arg", so mask it
*/
@ -38,7 +42,7 @@ size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_ar
mask_arg:
arg->mask |= (1 << 2);
}
out:
return syscall_arg__scnprintf_strarrays(bf, size, arg);
}