i386 port of the pthread SystemTap probes

9 files changed, 46 insertions, 12 deletions

diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 9b63c5365d..a488ccb37d 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,4 +1,17 @@
 2012-05-25  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.
+
+2012-05-25  Rayson Ho  <rho@redhat.com>
 	    Roland McGrath  <roland@hack.frob.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 fe6d4b678a..7c3212cb68 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2004,2006,2007,2009,2010 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -21,6 +21,8 @@
 #include <kernel-features.h>
 #include <lowlevellock.h>
 
+#include <stap-probe.h>
+
 	.text
 
 #ifdef __ASSUME_PRIVATE_FUTEX
@@ -90,7 +92,8 @@ __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 71a668686f..99f9bc901a 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
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002,2003,2004,2006,2007,2009 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -23,6 +23,7 @@
 #include <kernel-features.h>
 #include <pthread-pi-defines.h>
 #include <pthread-errnos.h>
+#include <stap-probe.h>
 
 	.text
 
@@ -48,6 +49,8 @@ __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 2af611aedc..e204805a93 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
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2005,2007,2009,2010 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -23,7 +23,7 @@
 #include <kernel-features.h>
 #include <pthread-pi-defines.h>
 #include <pthread-errnos.h>
-
+#include <stap-probe.h>
 
 	.text
 
@@ -44,6 +44,8 @@ __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 ff3da370dc..8170ab321b 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
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2004,2006-2007,2009,2010 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -23,7 +23,7 @@
 #include <pthread-errnos.h>
 #include <pthread-pi-defines.h>
 #include <kernel-features.h>
-
+#include <stap-probe.h>
 
 	.text
 
@@ -60,6 +60,8 @@ __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 1d7e75105d..2ae7af2613 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
@@ -1,5 +1,4 @@
-/* Copyright (C) 2002-2004,2006-2007,2009,2010,2012
-   Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -25,6 +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_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 156fce868d..ebbe809715 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
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -22,6 +22,7 @@
 #include <pthread-errnos.h>
 #include <kernel-features.h>
 
+#include <stap-probe.h>
 
 	.text
 
@@ -40,6 +41,8 @@ __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 3994b06c03..d30e93a2dc 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
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -22,6 +22,7 @@
 #include <pthread-errnos.h>
 #include <kernel-features.h>
 
+#include <stap-probe.h>
 
 	.text
 
@@ -40,6 +41,8 @@ __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 497d4739bb..3d805ff433 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2004, 2006-2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -19,6 +19,8 @@
 #ifndef _LOWLEVELLOCK_H
 #define _LOWLEVELLOCK_H	1
 
+#include <stap-probe.h>
+
 #ifndef __ASSEMBLER__
 # include <time.h>
 # include <sys/param.h>
@@ -225,6 +227,7 @@ 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					      \