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-rw-r--r--tools/perf/builtin-trace.c41
1 files changed, 38 insertions, 3 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 60ee811..81c20a6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -11,6 +11,7 @@
#include <libaudit.h>
#include <stdlib.h>
+#include <sys/mman.h>
static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long arg)
{
@@ -19,6 +20,36 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long ar
#define SCA_HEX syscall_arg__scnprintf_hex
+static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, unsigned long arg)
+{
+ int printed = 0, prot = arg;
+
+ if (prot == PROT_NONE)
+ return scnprintf(bf, size, "NONE");
+#define P_MMAP_PROT(n) \
+ if (prot & PROT_##n) { \
+ printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
+ prot &= ~PROT_##n; \
+ }
+
+ P_MMAP_PROT(EXEC);
+ P_MMAP_PROT(READ);
+ P_MMAP_PROT(WRITE);
+#ifdef PROT_SEM
+ P_MMAP_PROT(SEM);
+#endif
+ P_MMAP_PROT(GROWSDOWN);
+ P_MMAP_PROT(GROWSUP);
+#undef P_MMAP_PROT
+
+ if (prot)
+ printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
+
+ return printed;
+}
+
+#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
+
static struct syscall_fmt {
const char *name;
const char *alias;
@@ -40,10 +71,14 @@ static struct syscall_fmt {
.arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
{ .name = "mmap", .hexret = true,
- .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
+ .arg_scnprintf = { [0] = SCA_HEX, /* addr */
+ [2] = SCA_MMAP_PROT, /* prot */ }, },
{ .name = "mprotect", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
- { .name = "mremap", .hexret = true, },
+ .arg_scnprintf = { [0] = SCA_HEX, /* start */
+ [2] = SCA_MMAP_PROT, /* prot */ }, },
+ { .name = "mremap", .hexret = true,
+ .arg_scnprintf = { [0] = SCA_HEX, /* addr */
+ [4] = SCA_HEX, /* new_addr */ }, },
{ .name = "munmap", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
{ .name = "open", .errmsg = true, },
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