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Commit 49af9e93 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf trace: Beautify eventfd2 'flags' arg 

 61.168 ( 0.004 ms): 24267 eventfd2(flags: CLOEXEC|NONBLOCK) = 9

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3hg8eajdzil077501c8f5jkw@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent b2cc99fd

tools/perf/builtin-trace.c

+29 −0
Original line number Original line Diff line number Diff line
@@ -13,6 +13,7 @@ 




#include <libaudit.h>

#include <libaudit.h>

#include <stdlib.h>

#include <stdlib.h>

#include <sys/eventfd.h>

#include <sys/mman.h>

#include <sys/mman.h>

#include <linux/futex.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

#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)

static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)

{

{

	int sig = arg->val;

	int sig = arg->val;
@@ -516,6 +543,8 @@ static struct syscall_fmt { 
	{ .name	    = "brk",	    .hexret = true,

	{ .name	    = "brk",	    .hexret = true,

	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },

	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },

	{ .name	    = "connect",    .errmsg = true, },

	{ .name	    = "connect",    .errmsg = true, },

	{ .name	    = "eventfd2",   .errmsg = true,

	  .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },

	{ .name	    = "fcntl",	    .errmsg = true,

	{ .name	    = "fcntl",	    .errmsg = true,

	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },

	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },

	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },

	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },