summaryrefslogtreecommitdiffstats
path: root/tools/perf
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2013-08-20 17:44:42 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-08-26 17:26:00 -0300
commitae685380b9a1ffe5e1935852ec11f0aa38b1d77b (patch)
tree2c2d6968730003c8808970d3fc1950c3c73d8996 /tools/perf
parentbeccb2b54a39ca5e49a7aa2912faa33617a45cc1 (diff)
downloadop-kernel-dev-ae685380b9a1ffe5e1935852ec11f0aa38b1d77b.zip
op-kernel-dev-ae685380b9a1ffe5e1935852ec11f0aa38b1d77b.tar.gz
perf trace: Add beautifier for mmap prot parm
[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.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-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-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, },
OpenPOWER on IntegriCloud