From: Arnaldo Carvalho de Melo <a...@redhat.com>
[root@zoo ~]# perf trace -e mmap,mprotect sleep 1
0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags:
PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000
1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE,
fd: 3, off: 0 ) = 0xa609f000
1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ,
flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000
1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE
) = 0
1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE,
flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000
1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE,
flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000
1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags:
PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000
1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags:
PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000
1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ
) = 0
1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ
) = 0
1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ
) = 0
1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags:
PRIVATE, fd: 3, off: 0) = 0x9fcac000
[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, 40 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 81c20a6..034152c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -50,6 +50,44 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf,
size_t size, unsigned l
#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
+static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
unsigned long arg)
+{
+ int printed = 0, flags = arg;
+
+#define P_MMAP_FLAG(n) \
+ if (flags & MAP_##n) { \
+ printed += scnprintf(bf + printed, size - printed, "%s%s",
printed ? "|" : "", #n); \
+ flags &= ~MAP_##n; \
+ }
+
+ P_MMAP_FLAG(SHARED);
+ P_MMAP_FLAG(PRIVATE);
+ P_MMAP_FLAG(32BIT);
+ P_MMAP_FLAG(ANONYMOUS);
+ P_MMAP_FLAG(DENYWRITE);
+ P_MMAP_FLAG(EXECUTABLE);
+ P_MMAP_FLAG(FILE);
+ P_MMAP_FLAG(FIXED);
+ P_MMAP_FLAG(GROWSDOWN);
+ P_MMAP_FLAG(HUGETLB);
+ P_MMAP_FLAG(LOCKED);
+ P_MMAP_FLAG(NONBLOCK);
+ P_MMAP_FLAG(NORESERVE);
+ P_MMAP_FLAG(POPULATE);
+ P_MMAP_FLAG(STACK);
+#ifdef MAP_UNINITIALIZED
+ P_MMAP_FLAG(UNINITIALIZED);
+#endif
+#undef P_MMAP_FLAG
+
+ if (flags)
+ printed += scnprintf(bf + printed, size - printed, "%s%#x",
printed ? "|" : "", flags);
+
+ return printed;
+}
+
+#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
+
static struct syscall_fmt {
const char *name;
const char *alias;
@@ -72,7 +110,8 @@ static struct syscall_fmt {
{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
{ .name = "mmap", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */
- [2] = SCA_MMAP_PROT, /* prot */ }, },
+ [2] = SCA_MMAP_PROT, /* prot */
+ [3] = SCA_MMAP_FLAGS, /* flags */ }, },
{ .name = "mprotect", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* start */
[2] = SCA_MMAP_PROT, /* prot */ }, },
--
1.8.1.4
--
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