perf trace: Add beautifier for madvise behaviour/advice parm
[root@zoo ~]# perf trace -e madvise -a
35299.631 ( 0.019 ms): 19553 madvise(start: 0x7f5b101d4000, len_in: 4063232, behavior: DONTNEED ) = 0
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.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-a3twa1ia5sxt0hsxqika4efq@git.kernel.org
[ ifdef DO(NT)?DUMP to fix build on f16, from David Ahern ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 034152c..b72afc7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -88,6 +88,43 @@
#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
+static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size, unsigned long arg)
+{
+ int behavior = arg;
+
+ switch (behavior) {
+#define P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
+ P_MADV_BHV(NORMAL);
+ P_MADV_BHV(RANDOM);
+ P_MADV_BHV(SEQUENTIAL);
+ P_MADV_BHV(WILLNEED);
+ P_MADV_BHV(DONTNEED);
+ P_MADV_BHV(REMOVE);
+ P_MADV_BHV(DONTFORK);
+ P_MADV_BHV(DOFORK);
+ P_MADV_BHV(HWPOISON);
+#ifdef MADV_SOFT_OFFLINE
+ P_MADV_BHV(SOFT_OFFLINE);
+#endif
+ P_MADV_BHV(MERGEABLE);
+ P_MADV_BHV(UNMERGEABLE);
+ P_MADV_BHV(HUGEPAGE);
+ P_MADV_BHV(NOHUGEPAGE);
+#ifdef MADV_DONTDUMP
+ P_MADV_BHV(DONTDUMP);
+#endif
+#ifdef MADV_DODUMP
+ P_MADV_BHV(DODUMP);
+#endif
+#undef P_MADV_PHV
+ default: break;
+ }
+
+ return scnprintf(bf, size, "%#x", behavior);
+}
+
+#define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
+
static struct syscall_fmt {
const char *name;
const char *alias;
@@ -108,6 +145,9 @@
{ .name = "ioctl", .errmsg = true,
.arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
+ { .name = "madvise", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_HEX, /* start */
+ [2] = SCA_MADV_BHV, /* behavior */ }, },
{ .name = "mmap", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */
[2] = SCA_MMAP_PROT, /* prot */