From 07a0572439450e2631f90d595965c379de105bab Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 14 Jul 2017 15:24:19 -0300 Subject: [PATCH] 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 Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-z0ggo126p2eobfwnjw9z16tw@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/trace/beauty/fcntl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tools/perf/trace/beauty/fcntl.c b/tools/perf/trace/beauty/fcntl.c index 9de80a7eddfa..254ae435780d 100644 --- a/tools/perf/trace/beauty/fcntl.c +++ b/tools/perf/trace/beauty/fcntl.c @@ -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); } -- 2.20.1