Commit 07a05724 authored Jul 14, 2017 by Arnaldo Carvalho de Melo

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

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>

parent fc65eb82

tools/perf/trace/beauty/fcntl.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}