From: Arnaldo Carvalho de Melo <a...@redhat.com>
[root@zoo ~]# perf trace -e mmap,mprotect sleep 1
0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34,
fd: 4294967295, off: 0) = 0xd62ae000
1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3,
off: 0 ) = 0xd628f000
1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ,
flags: 2050, fd: 3, off: 0) = 0xc1600000
1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE
) = 0
1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE,
flags: 2066, fd: 3, off: 1757184) = 0xc19ad000
1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE,
flags: 50, fd: 4294967295, off: 0) = 0xc19b3000
1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34,
fd: 4294967295, off: 0) = 0xd628e000
1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34,
fd: 4294967295, off: 0) = 0xd628c000
1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ
) = 0
1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ
) = 0
1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ
) = 0
2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd:
3, off: 0 ) = 0xcfe9c000
[root@zoo ~]#
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Mike Galbraith <efa...@gmx.de>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616gg...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
tools/perf/builtin-trace.c | 41 ++++++++++++++++++++++++++++++++++++++---
1 file 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, },
--
1.8.1.4
--
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