You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

65 lines
2.6 KiB

diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c
--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c 2012-12-25 08:32:13.000000000 +0530
+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/lowlevellock.c 2014-09-05 21:50:56.982975803 +0530
@@ -21,11 +21,13 @@
#include <sysdep.h>
#include <lowlevellock.h>
#include <sys/time.h>
+#include <stap-probe.h>
void
__lll_lock_wait_private (int *futex)
{
+ LIBC_PROBE (lll_lock_wait_private, 1, futex);
if (*futex == 2)
lll_futex_wait (futex, 2, LLL_PRIVATE);
@@ -39,6 +42,7 @@ __lll_lock_wait_private (int *futex)
void
__lll_lock_wait (int *futex, int private)
{
+ LIBC_PROBE (lll_lock_wait, 2, futex, FUTEX_WAIT | private);
if (*futex == 2)
lll_futex_wait (futex, 2, private);
diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h 2012-12-25 08:32:13.000000000 +0530
+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h 2014-09-05 21:51:58.722483631 +0530
@@ -19,6 +19,8 @@
#ifndef _LOWLEVELLOCK_H
#define _LOWLEVELLOCK_H 1
+#include <stap-probe.h>
+
#include <time.h>
#include <sys/param.h>
#include <bits/pthreadtypes.h>
@@ -106,6 +108,7 @@
INTERNAL_SYSCALL_DECL (__err); \
long int __ret; \
\
+ LIBC_PROBE (lll_futex_wake, 3, futexp, nr, private); \
__ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
__lll_private_flag (FUTEX_WAKE, private), \
(nr), 0); \
diff -pruN glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
--- glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h 2012-12-25 08:32:13.000000000 +0530
+++ glibc-2.17-c758a686/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h 2014-09-05 21:51:58.722483631 +0530
@@ -19,6 +19,8 @@
#ifndef _LOWLEVELLOCK_H
#define _LOWLEVELLOCK_H 1
+#include <stap-probe.h>
+
#include <time.h>
#include <sys/param.h>
#include <bits/pthreadtypes.h>
@@ -122,6 +124,7 @@
register unsigned long int __r4 asm ("4") = (unsigned long int) (nr); \
register unsigned long int __result asm ("2"); \
\
+ LIBC_PROBE (lll_futex_wake, 3, futex, nr, private); \
__asm __volatile ("svc %b1" \
: "=d" (__result) \
: "i" (SYS_futex), "0" (__r2), "d" (__r3), "d" (__r4) \