* [tip:perf/core] perf trace: Beautify access 'mode' arg
@ 2013-10-15 5:21 tip-bot for Arnaldo Carvalho de Melo
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From: tip-bot for Arnaldo Carvalho de Melo @ 2013-10-15 5:21 UTC (permalink / raw)
To: linux-tip-commits
Cc: linux-kernel, eranian, paulus, acme, hpa, mingo, peterz, efault,
jolsa, fweisbec, adrian.hunter, dsahern, tglx
Commit-ID: 511089994e33c9dbfe2c6e1fb2fb00b5e53866e8
Gitweb: http://git.kernel.org/tip/511089994e33c9dbfe2c6e1fb2fb00b5e53866e8
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Wed, 4 Sep 2013 11:42:27 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 9 Oct 2013 11:10:35 -0300
perf trace: Beautify access 'mode' arg
Removing the _OK suffix and using RWX when all three bits are set, for
instance.
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-ypaz9k43lyqy94679feqnv8x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 30 +++++++++++++++++++++++++++++-
1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2b19aef..7aa6bca 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -312,6 +312,33 @@ static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
#define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
+static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
+ struct syscall_arg *arg)
+{
+ size_t printed = 0;
+ int mode = arg->val;
+
+ if (mode == F_OK) /* 0 */
+ return scnprintf(bf, size, "F");
+#define P_MODE(n) \
+ if (mode & n##_OK) { \
+ printed += scnprintf(bf + printed, size - printed, "%s", #n); \
+ mode &= ~n##_OK; \
+ }
+
+ P_MODE(R);
+ P_MODE(W);
+ P_MODE(X);
+#undef P_MODE
+
+ if (mode)
+ printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
+
+ return printed;
+}
+
+#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
+
static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
struct syscall_arg *arg)
{
@@ -422,7 +449,8 @@ static struct syscall_fmt {
bool timeout;
bool hexret;
} syscall_fmts[] = {
- { .name = "access", .errmsg = true, },
+ { .name = "access", .errmsg = true,
+ .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, },
{ .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
{ .name = "brk", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
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