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GNU C Library master sources branch, roland/systemtap, updated. glibc-2.13-35-g789867d


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The branch, roland/systemtap has been updated
       via  789867dfcd2015d07bcaf1fc11b8b8b5f35b4b69 (commit)
      from  502fc5c35f7a825f41d69a21a0a88fe8edb067a6 (commit)

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- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=789867dfcd2015d07bcaf1fc11b8b8b5f35b4b69

commit 789867dfcd2015d07bcaf1fc11b8b8b5f35b4b69
Author: Rayson Ho <rho@redhat.com>
Date:   Wed Feb 23 11:30:55 2011 -0800

    i386 port of the pthread SystemTap probes

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 337b26b..fbdd83b 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,16 @@
+2011-02-22  Rayson Ho  <rho@redhat.com>
+
+	* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Low-level SystemTap
+	probes for i386.
+	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S: Likewise.
+	* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S: Likewise.
+
 2011-02-09  Rayson Ho  <rho@redhat.com>
 
 	* DESIGN-systemtap-probes.txt: New file.
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
index 2198ccf..92437f0 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
@@ -22,6 +22,8 @@
 #include <kernel-features.h>
 #include <lowlevellock.h>
 
+#include <stap-probe.h>
+
 	.text
 
 #ifdef __ASSUME_PRIVATE_FUTEX
@@ -91,7 +93,8 @@ __lll_lock_wait_private:
 	cmpl	%edx, %eax	/* NB:	 %edx == 2 */
 	jne 2f
 
-1:	movl	$SYS_futex, %eax
+1:	LIBC_PROBE (lll_lock_wait_private, 1, %ebx)
+	movl	$SYS_futex, %eax
 	ENTER_KERNEL
 
 2:	movl	%edx, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
index a7ca78f..e9c6a63 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S
@@ -24,6 +24,7 @@
 #include <kernel-features.h>
 #include <pthread-pi-defines.h>
 #include <pthread-errnos.h>
+#include <stap-probe.h>
 
 	.text
 
@@ -49,6 +50,8 @@ __pthread_cond_broadcast:
 
 	movl	20(%esp), %ebx
 
+	LIBC_PROBE (cond_broadcast, 1, %edx)
+
 	/* Get internal lock.  */
 	movl	$1, %edx
 	xorl	%eax, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
index 05cda25..96b5928 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S
@@ -24,7 +24,7 @@
 #include <kernel-features.h>
 #include <pthread-pi-defines.h>
 #include <pthread-errnos.h>
-
+#include <stap-probe.h>
 
 	.text
 
@@ -45,6 +45,8 @@ __pthread_cond_signal:
 
 	movl	12(%esp), %edi
 
+	LIBC_PROBE (cond_signal, 1, %edi)
+
 	/* Get internal lock.  */
 	movl	$1, %edx
 	xorl	%eax, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
index dee73f0..3762abc 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
@@ -24,7 +24,7 @@
 #include <pthread-errnos.h>
 #include <pthread-pi-defines.h>
 #include <kernel-features.h>
-
+#include <stap-probe.h>
 
 	.text
 
@@ -61,6 +61,8 @@ __pthread_cond_timedwait:
 	movl	20(%esp), %ebx
 	movl	28(%esp), %ebp
 
+	LIBC_PROBE (cond_timedwait, 3, %ebx, 24(%esp), %ebp)
+
 	cmpl	$1000000000, 4(%ebp)
 	movl	$EINVAL, %eax
 	jae	18f
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
index 53970d7..2185cf6 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S
@@ -25,6 +25,7 @@
 #include <pthread-errnos.h>
 #include <pthread-pi-defines.h>
 #include <kernel-features.h>
+#include <stap-probe.h>
 
 
 	.text
@@ -61,6 +62,8 @@ __pthread_cond_wait:
 	xorl	%esi, %esi
 	movl	20(%esp), %ebx
 
+	LIBC_PROBE (cond_wait, 2, 24(%esp), %ebx)
+
 	/* Get internal lock.  */
 	movl	$1, %edx
 	xorl	%eax, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
index 4e5f0c5..050266e 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
@@ -23,6 +23,7 @@
 #include <pthread-errnos.h>
 #include <kernel-features.h>
 
+#include <stap-probe.h>
 
 	.text
 
@@ -41,6 +42,8 @@ __pthread_rwlock_rdlock:
 	xorl	%esi, %esi
 	movl	12(%esp), %ebx
 
+	LIBC_PROBE (rdlock_entry, 1, %ebx)
+
 	/* Get the lock.  */
 	movl	$1, %edx
 	xorl	%eax, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
index 1007364..3ff0ac3 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
@@ -23,6 +23,7 @@
 #include <pthread-errnos.h>
 #include <kernel-features.h>
 
+#include <stap-probe.h>
 
 	.text
 
@@ -41,6 +42,8 @@ __pthread_rwlock_wrlock:
 	xorl	%esi, %esi
 	movl	12(%esp), %ebx
 
+	LIBC_PROBE (wrlock_entry, 1, %ebx)
+
 	/* Get the lock.  */
 	movl	$1, %edx
 	xorl	%eax, %eax
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
index 4bb585a..34e28bd 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -20,6 +20,8 @@
 #ifndef _LOWLEVELLOCK_H
 #define _LOWLEVELLOCK_H	1
 
+#include <stap-probe.h>
+
 #ifndef __ASSEMBLER__
 # include <time.h>
 # include <sys/param.h>
@@ -226,6 +228,7 @@ LLL_STUB_UNWIND_INFO_END
   do {									      \
     int __ignore;							      \
     register __typeof (nr) _nr asm ("edx") = (nr);			      \
+    LIBC_PROBE (lll_futex_wake, 3, futex, nr, private);                       \
     __asm __volatile (LLL_EBX_LOAD					      \
 		      LLL_ENTER_KERNEL					      \
 		      LLL_EBX_LOAD					      \

-----------------------------------------------------------------------

Summary of changes:
 nptl/ChangeLog                                     |   13 +++++++++++++
 .../unix/sysv/linux/i386/i486/lowlevellock.S       |    5 ++++-
 .../sysv/linux/i386/i486/pthread_cond_broadcast.S  |    3 +++
 .../sysv/linux/i386/i486/pthread_cond_signal.S     |    4 +++-
 .../sysv/linux/i386/i486/pthread_cond_timedwait.S  |    4 +++-
 .../unix/sysv/linux/i386/i486/pthread_cond_wait.S  |    3 +++
 .../sysv/linux/i386/i486/pthread_rwlock_rdlock.S   |    3 +++
 .../sysv/linux/i386/i486/pthread_rwlock_wrlock.S   |    3 +++
 nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h   |    3 +++
 9 files changed, 38 insertions(+), 3 deletions(-)


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