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Subject[PATCH 056/161] perf trace: Use strarray for ltrace's whence arg
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

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-5f9jhbq8my4ojarhtlygveox@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 40 +++++++++++++---------------------------
1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 386ca2058ee7..7cb60526a6f1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -72,31 +72,6 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,

#define SCA_HEX syscall_arg__scnprintf_hex

-static size_t syscall_arg__scnprintf_whence(char *bf, size_t size,
- struct syscall_arg *arg)
-{
- int whence = arg->val;
-
- switch (whence) {
-#define P_WHENCE(n) case SEEK_##n: return scnprintf(bf, size, #n)
- P_WHENCE(SET);
- P_WHENCE(CUR);
- P_WHENCE(END);
-#ifdef SEEK_DATA
- P_WHENCE(DATA);
-#endif
-#ifdef SEEK_HOLE
- P_WHENCE(HOLE);
-#endif
-#undef P_WHENCE
- default: break;
- }
-
- return scnprintf(bf, size, "%#x", whence);
-}
-
-#define SCA_WHENCE syscall_arg__scnprintf_whence
-
static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
struct syscall_arg *arg)
{
@@ -254,10 +229,20 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc
return printed;
}

+#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
+
static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
static DEFINE_STRARRAY(itimers);

-#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
+static const char *whences[] = { "SET", "CUR", "END",
+#ifdef SEEK_DATA
+"DATA",
+#endif
+#ifdef SEEK_HOLE
+"HOLE",
+#endif
+};
+static DEFINE_STRARRAY(whences);

static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
struct syscall_arg *arg)
@@ -340,7 +325,8 @@ static struct syscall_fmt {
{ .name = "ioctl", .errmsg = true,
.arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
{ .name = "lseek", .errmsg = true,
- .arg_scnprintf = { [2] = SCA_WHENCE, /* whence */ }, },
+ .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ },
+ .arg_parm = { [2] = &strarray__whences, /* whence */ }, },
{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
{ .name = "madvise", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* start */
--
1.8.1.4


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