Commit-ID: 49af9e93adfa11d50435aa079299a765843532fc
Gitweb: http://git.kernel.org/tip/49af9e93adfa11d50435aa079299a765843532fc
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 12 Sep 2013 12:18:56 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 9 Oct 2013 11:11:21 -0300
perf trace: Beautify eventfd2 'flags' arg
61.168 ( 0.004 ms): 24267 eventfd2(flags: CLOEXEC|NONBLOCK) = 9
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-3hg8eajdzil077501c8f5jkw@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-trace.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c400fbe..8a09ba3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -13,6 +13,7 @@
#include <libaudit.h>
#include <stdlib.h>
+#include <sys/eventfd.h>
#include <sys/mman.h>
#include <linux/futex.h>
@@ -456,6 +457,32 @@ static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
#define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
+static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
+ struct syscall_arg *arg)
+{
+ int printed = 0, flags = arg->val;
+
+ if (flags == 0)
+ return scnprintf(bf, size, "NONE");
+#define P_FLAG(n) \
+ if (flags & EFD_##n) { \
+ printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
+ flags &= ~EFD_##n; \
+ }
+
+ P_FLAG(SEMAPHORE);
+ P_FLAG(CLOEXEC);
+ P_FLAG(NONBLOCK);
+#undef P_FLAG
+
+ if (flags)
+ printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+ return printed;
+}
+
+#define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
+
static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
{
int sig = arg->val;
@@ -516,6 +543,8 @@ static struct syscall_fmt {
{ .name = "brk", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
{ .name = "connect", .errmsg = true, },
+ { .name = "eventfd2", .errmsg = true,
+ .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
{ .name = "fcntl", .errmsg = true,
.arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
.arg_parm = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
--
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