1 files changed, 40 insertions, 0 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 034152c7e974..b72afc73f9a7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -88,6 +88,43 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, unsigned
 
 #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 @@ static struct syscall_fmt {
         { .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 */