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| author | Rayson Ho <rho@redhat.com> | 2011-02-23 11:30:55 -0800 |
|---|---|---|
| committer | Roland McGrath <roland@hack.frob.com> | 2012-05-25 13:41:04 -0700 |
| commit | 17557282082870c7168d4bd9f386523c8c60d729 (patch) | |
| tree | a2ed9e2b99370cd94b402aad75097a8315e084f8 /nptl | |
| parent | 5acf7263d52992ce4144e0a3b3644985b9e792b4 (diff) | |
| download | glibc-17557282082870c7168d4bd9f386523c8c60d729.tar.gz glibc-17557282082870c7168d4bd9f386523c8c60d729.tar.xz glibc-17557282082870c7168d4bd9f386523c8c60d729.zip | |
i386 port of the pthread SystemTap probes
Diffstat (limited to 'nptl')
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 \ |