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authorAndi Kleen <ak@linux.intel.com>2014-03-03 07:06:11 -0800
committerAndi Kleen <ak@linux.intel.com>2014-06-13 13:16:06 -0700
commitb7aa8caacee9ec707835ee48d14ab46bfdbae4e9 (patch)
tree823ee7f3238c8e4ad474df0a94edcd1dd7098f82 /sysdeps/unix/sysv/linux/i386
parent8491ed6d70b60e4c75cdcfde10ae759898547b08 (diff)
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Remove x86 assembler rwlock code
With the recent tuning the C version of rwlocks is basically the same performance as the x86 assembler version for uncontended locks (with a a few cycles near the run-to-run variability). For others it should not matter anyways. So remove the assembler code and use the C version like other architectures.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
-rw-r--r--sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S192
-rw-r--r--sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S243
-rw-r--r--sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S236
-rw-r--r--sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S151
-rw-r--r--sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S183
-rw-r--r--sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S19
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S20
-rw-r--r--sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S19
15 files changed, 0 insertions, 1196 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
deleted file mode 100644
index a81bc06d7c..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S
+++ /dev/null
@@ -1,192 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <pthread-errnos.h>
-#include <kernel-features.h>
-
-#include <stap-probe.h>
-
- .text
-
- .globl __pthread_rwlock_rdlock
- .type __pthread_rwlock_rdlock,@function
- .align 16
-__pthread_rwlock_rdlock:
- cfi_startproc
- pushl %esi
- cfi_adjust_cfa_offset(4)
- pushl %ebx
- cfi_adjust_cfa_offset(4)
- cfi_offset(%esi, -8)
- cfi_offset(%ebx, -12)
-
- xorl %esi, %esi
- movl 12(%esp), %ebx
-
- LIBC_PROBE (rdlock_entry, 1, %ebx)
-
- /* Get the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebx)
-#else
- cmpxchgl %edx, MUTEX(%ebx)
-#endif
- jnz 1f
-
-2: movl WRITER(%ebx), %eax
- testl %eax, %eax
- jne 14f
- cmpl $0, WRITERS_QUEUED(%ebx)
- je 5f
- cmpb $0, FLAGS(%ebx)
- je 5f
-
-3: addl $1, READERS_QUEUED(%ebx)
- je 4f
-
- movl READERS_WAKEUP(%ebx), %edx
-
- LOCK
-#if MUTEX == 0
- subl $1, (%ebx)
-#else
- subl $1, MUTEX(%ebx)
-#endif
- jne 10f
-
-11:
-#ifdef __ASSUME_PRIVATE_FUTEX
- movzbl PSHARED(%ebx), %ecx
- xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %ecx
-#else
- movzbl PSHARED(%ebx), %ecx
-# if FUTEX_WAIT != 0
- orl $FUTEX_WAIT, %ecx
-# endif
- xorl %gs:PRIVATE_FUTEX, %ecx
-#endif
- addl $READERS_WAKEUP, %ebx
- movl $SYS_futex, %eax
- ENTER_KERNEL
-
- subl $READERS_WAKEUP, %ebx
-
- /* Reget the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebx)
-#else
- cmpxchgl %edx, MUTEX(%ebx)
-#endif
- jnz 12f
-
-13: subl $1, READERS_QUEUED(%ebx)
- jmp 2b
-
-5: xorl %edx, %edx
- addl $1, NR_READERS(%ebx)
- je 8f
-9: LOCK
-#if MUTEX == 0
- subl $1, (%ebx)
-#else
- subl $1, MUTEX(%ebx)
-#endif
- jne 6f
-7:
-
- movl %edx, %eax
- popl %ebx
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebx)
- popl %esi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%esi)
- ret
-
- cfi_adjust_cfa_offset(8)
- cfi_offset(%esi, -8)
- cfi_offset(%ebx, -12)
-1:
-#if MUTEX == 0
- movl %ebx, %edx
-#else
- leal MUTEX(%ebx), %edx
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_lock_wait
- jmp 2b
-
-14: cmpl %gs:TID, %eax
- jne 3b
- /* Deadlock detected. */
- movl $EDEADLK, %edx
- jmp 9b
-
-6:
-#if MUTEX == 0
- movl %ebx, %eax
-#else
- leal MUTEX(%ebx), %eax
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_unlock_wake
- jmp 7b
-
- /* Overflow. */
-8: subl $1, NR_READERS(%ebx)
- movl $EAGAIN, %edx
- jmp 9b
-
- /* Overflow. */
-4: subl $1, READERS_QUEUED(%ebx)
- movl $EAGAIN, %edx
- jmp 9b
-
-10:
-#if MUTEX == 0
- movl %ebx, %eax
-#else
- leal MUTEX(%ebx), %eax
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_unlock_wake
- jmp 11b
-
-12:
-#if MUTEX == 0
- movl %ebx, %edx
-#else
- leal MUTEX(%ebx), %edx
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_lock_wait
- jmp 13b
- cfi_endproc
- .size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock
-
-strong_alias (__pthread_rwlock_rdlock, pthread_rwlock_rdlock)
-hidden_def (__pthread_rwlock_rdlock)
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
deleted file mode 100644
index bc1001ce9c..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S
+++ /dev/null
@@ -1,243 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <pthread-errnos.h>
-#include <kernel-features.h>
-
-
- .text
-
- .globl pthread_rwlock_timedrdlock
- .type pthread_rwlock_timedrdlock,@function
- .align 16
-pthread_rwlock_timedrdlock:
- cfi_startproc
- pushl %esi
- cfi_adjust_cfa_offset(4)
- pushl %edi
- cfi_adjust_cfa_offset(4)
- pushl %ebx
- cfi_adjust_cfa_offset(4)
- pushl %ebp
- cfi_adjust_cfa_offset(4)
- cfi_offset(%esi, -8)
- cfi_offset(%edi, -12)
- cfi_offset(%ebx, -16)
- cfi_offset(%ebp, -20)
- subl $8, %esp
- cfi_adjust_cfa_offset(8)
-
- movl 28(%esp), %ebp
- movl 32(%esp), %edi
-
- /* Get the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebp)
-#else
- cmpxchgl %edx, MUTEX(%ebp)
-#endif
- jnz 1f
-
-2: movl WRITER(%ebp), %eax
- testl %eax, %eax
- jne 14f
- cmpl $0, WRITERS_QUEUED(%ebp)
- je 5f
- cmpb $0, FLAGS(%ebp)
- je 5f
-
- /* Check the value of the timeout parameter. */
-3: cmpl $1000000000, 4(%edi)
- jae 19f
-
- addl $1, READERS_QUEUED(%ebp)
- je 4f
-
- movl READERS_WAKEUP(%ebp), %esi
-
- LOCK
-#if MUTEX == 0
- subl $1, (%ebp)
-#else
- subl $1, MUTEX(%ebp)
-#endif
- jne 10f
-
- /* Get current time. */
-11: movl %esp, %ebx
- xorl %ecx, %ecx
- movl $__NR_gettimeofday, %eax
- ENTER_KERNEL
-
- /* Compute relative timeout. */
- movl 4(%esp), %eax
- movl $1000, %edx
- mul %edx /* Milli seconds to nano seconds. */
- movl (%edi), %ecx
- movl 4(%edi), %edx
- subl (%esp), %ecx
- subl %eax, %edx
- jns 15f
- addl $1000000000, %edx
- subl $1, %ecx
-15: testl %ecx, %ecx
- js 16f /* Time is already up. */
-
- /* Futex call. */
- movl %ecx, (%esp) /* Store relative timeout. */
- movl %edx, 4(%esp)
-
- movl %esi, %edx
-#ifdef __ASSUME_PRIVATE_FUTEX
- movzbl PSHARED(%ebp), %ecx
- xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %ecx
-#else
- movzbl PSHARED(%ebp), %ecx
-# if FUTEX_WAIT != 0
- orl $FUTEX_WAIT, %ecx
-# endif
- xorl %gs:PRIVATE_FUTEX, %ecx
-#endif
- movl %esp, %esi
- leal READERS_WAKEUP(%ebp), %ebx
- movl $SYS_futex, %eax
- ENTER_KERNEL
- movl %eax, %esi
-17:
-
- /* Reget the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebp)
-#else
- cmpxchgl %edx, MUTEX(%ebp)
-#endif
- jnz 12f
-
-13: subl $1, READERS_QUEUED(%ebp)
- cmpl $-ETIMEDOUT, %esi
- jne 2b
-
-18: movl $ETIMEDOUT, %edx
- jmp 9f
-
-
-5: xorl %edx, %edx
- addl $1, NR_READERS(%ebp)
- je 8f
-9: LOCK
-#if MUTEX == 0
- subl $1, (%ebp)
-#else
- subl $1, MUTEX(%ebp)
-#endif
- jne 6f
-
-7: movl %edx, %eax
-
- addl $8, %esp
- cfi_adjust_cfa_offset(-8)
- popl %ebp
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebp)
- popl %ebx
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebx)
- popl %edi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%edi)
- popl %esi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%esi)
- ret
-
- cfi_adjust_cfa_offset(24)
- cfi_offset(%esi, -8)
- cfi_offset(%edi, -12)
- cfi_offset(%ebx, -16)
- cfi_offset(%ebp, -20)
-1:
-#if MUTEX == 0
- movl %ebp, %edx
-#else
- leal MUTEX(%ebp), %edx
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_lock_wait
- jmp 2b
-
-14: cmpl %gs:TID, %eax
- jne 3b
- movl $EDEADLK, %edx
- jmp 9b
-
-6:
-#if MUTEX == 0
- movl %ebp, %eax
-#else
- leal MUTEX(%ebp), %eax
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_unlock_wake
- jmp 7b
-
- /* Overflow. */
-8: subl $1, NR_READERS(%ebp)
- movl $EAGAIN, %edx
- jmp 9b
-
- /* Overflow. */
-4: subl $1, READERS_QUEUED(%ebp)
- movl $EAGAIN, %edx
- jmp 9b
-
-10:
-#if MUTEX == 0
- movl %ebp, %eax
-#else
- leal MUTEX(%ebp), %eax
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_unlock_wake
- jmp 11b
-
-12:
-#if MUTEX == 0
- movl %ebp, %edx
-#else
- leal MUTEX(%ebp), %edx
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_lock_wait
- jmp 13b
-
-16: movl $-ETIMEDOUT, %esi
- jmp 17b
-
-19: movl $EINVAL, %edx
- jmp 9b
- cfi_endproc
- .size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
deleted file mode 100644
index 9abba58ca8..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S
+++ /dev/null
@@ -1,236 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <pthread-errnos.h>
-#include <kernel-features.h>
-
-
- .text
-
- .globl pthread_rwlock_timedwrlock
- .type pthread_rwlock_timedwrlock,@function
- .align 16
-pthread_rwlock_timedwrlock:
- cfi_startproc
- pushl %esi
- cfi_adjust_cfa_offset(4)
- pushl %edi
- cfi_adjust_cfa_offset(4)
- pushl %ebx
- cfi_adjust_cfa_offset(4)
- pushl %ebp
- cfi_adjust_cfa_offset(4)
- cfi_offset(%esi, -8)
- cfi_offset(%edi, -12)
- cfi_offset(%ebx, -16)
- cfi_offset(%ebp, -20)
- subl $8, %esp
- cfi_adjust_cfa_offset(8)
-
- movl 28(%esp), %ebp
- movl 32(%esp), %edi
-
- /* Get the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebp)
-#else
- cmpxchgl %edx, MUTEX(%ebp)
-#endif
- jnz 1f
-
-2: movl WRITER(%ebp), %eax
- testl %eax, %eax
- jne 14f
- cmpl $0, NR_READERS(%ebp)
- je 5f
-
- /* Check the value of the timeout parameter. */
-3: cmpl $1000000000, 4(%edi)
- jae 19f
-
- addl $1, WRITERS_QUEUED(%ebp)
- je 4f
-
- movl WRITERS_WAKEUP(%ebp), %esi
-
- LOCK
-#if MUTEX == 0
- subl $1, (%ebp)
-#else
- subl $1, MUTEX(%ebp)
-#endif
- jne 10f
-
- /* Get current time. */
-11: movl %esp, %ebx
- xorl %ecx, %ecx
- movl $__NR_gettimeofday, %eax
- ENTER_KERNEL
-
- /* Compute relative timeout. */
- movl 4(%esp), %eax
- movl $1000, %edx
- mul %edx /* Milli seconds to nano seconds. */
- movl (%edi), %ecx
- movl 4(%edi), %edx
- subl (%esp), %ecx
- subl %eax, %edx
- jns 15f
- addl $1000000000, %edx
- subl $1, %ecx
-15: testl %ecx, %ecx
- js 16f /* Time is already up. */
-
- /* Futex call. */
- movl %ecx, (%esp) /* Store relative timeout. */
- movl %edx, 4(%esp)
-
- movl %esi, %edx
-#ifdef __ASSUME_PRIVATE_FUTEX
- movzbl PSHARED(%ebp), %ecx
- xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %ecx
-#else
- movzbl PSHARED(%ebp), %ecx
-# if FUTEX_WAIT != 0
- orl $FUTEX_WAIT, %ecx
-# endif
- xorl %gs:PRIVATE_FUTEX, %ecx
-#endif
- movl %esp, %esi
- leal WRITERS_WAKEUP(%ebp), %ebx
- movl $SYS_futex, %eax
- ENTER_KERNEL
- movl %eax, %esi
-17:
-
- /* Reget the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebp)
-#else
- cmpxchgl %edx, MUTEX(%ebp)
-#endif
- jnz 12f
-
-13: subl $1, WRITERS_QUEUED(%ebp)
- cmpl $-ETIMEDOUT, %esi
- jne 2b
-
-18: movl $ETIMEDOUT, %edx
- jmp 9f
-
-
-5: xorl %edx, %edx
- movl %gs:TID, %eax
- movl %eax, WRITER(%ebp)
-9: LOCK
-#if MUTEX == 0
- subl $1, (%ebp)
-#else
- subl $1, MUTEX(%ebp)
-#endif
- jne 6f
-
-7: movl %edx, %eax
-
- addl $8, %esp
- cfi_adjust_cfa_offset(-8)
- popl %ebp
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebp)
- popl %ebx
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebx)
- popl %edi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%edi)
- popl %esi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%esi)
- ret
-
- cfi_adjust_cfa_offset(24)
- cfi_offset(%esi, -8)
- cfi_offset(%edi, -12)
- cfi_offset(%ebx, -16)
- cfi_offset(%ebp, -20)
-1:
-#if MUTEX == 0
- movl %ebp, %edx
-#else
- leal MUTEX(%ebp), %edx
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_lock_wait
- jmp 2b
-
-14: cmpl %gs:TID, %eax
- jne 3b
-20: movl $EDEADLK, %edx
- jmp 9b
-
-6:
-#if MUTEX == 0
- movl %ebp, %eax
-#else
- leal MUTEX(%ebp), %eax
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_unlock_wake
- jmp 7b
-
- /* Overflow. */
-4: subl $1, WRITERS_QUEUED(%ebp)
- movl $EAGAIN, %edx
- jmp 9b
-
-10:
-#if MUTEX == 0
- movl %ebp, %eax
-#else
- leal MUTEX(%ebp), %eax
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_unlock_wake
- jmp 11b
-
-12:
-#if MUTEX == 0
- movl %ebp, %edx
-#else
- leal MUTEX(%ebp), %edx
-#endif
- movzbl PSHARED(%ebp), %ecx
- call __lll_lock_wait
- jmp 13b
-
-16: movl $-ETIMEDOUT, %esi
- jmp 17b
-
-19: movl $EINVAL, %edx
- jmp 9b
- cfi_endproc
- .size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
deleted file mode 100644
index 738c067780..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S
+++ /dev/null
@@ -1,151 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <kernel-features.h>
-
-
- .text
-
- .globl __pthread_rwlock_unlock
- .type __pthread_rwlock_unlock,@function
- .align 16
-__pthread_rwlock_unlock:
- cfi_startproc
- pushl %ebx
- cfi_adjust_cfa_offset(4)
- pushl %edi
- cfi_adjust_cfa_offset(4)
- cfi_offset(%ebx, -8)
- cfi_offset(%edi, -12)
-
- movl 12(%esp), %edi
-
- /* Get the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%edi)
-#else
- cmpxchgl %edx, MUTEX(%edi)
-#endif
- jnz 1f
-
-2: cmpl $0, WRITER(%edi)
- jne 5f
- subl $1, NR_READERS(%edi)
- jnz 6f
-
-5: movl $0, WRITER(%edi)
-
- movl $1, %edx
- leal WRITERS_WAKEUP(%edi), %ebx
- cmpl $0, WRITERS_QUEUED(%edi)
- jne 0f
-
- /* If also no readers waiting nothing to do. */
- cmpl $0, READERS_QUEUED(%edi)
- je 6f
-
- movl $0x7fffffff, %edx
- leal READERS_WAKEUP(%edi), %ebx
-
-0: addl $1, (%ebx)
- LOCK
-#if MUTEX == 0
- subl $1, (%edi)
-#else
- subl $1, MUTEX(%edi)
-#endif
- jne 7f
-
-8:
-#ifdef __ASSUME_PRIVATE_FUTEX
- movzbl PSHARED(%edi), %ecx
- xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAKE, %ecx
-#else
- movzbl PSHARED(%edi), %ecx
- orl $FUTEX_WAKE, %ecx
- xorl %gs:PRIVATE_FUTEX, %ecx
-#endif
- movl $SYS_futex, %eax
- ENTER_KERNEL
-
- xorl %eax, %eax
- popl %edi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%edi)
- popl %ebx
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebx)
- ret
-
- cfi_adjust_cfa_offset(8)
- cfi_offset(%ebx, -8)
- cfi_offset(%edi, -12)
- .align 16
-6: LOCK
-#if MUTEX == 0
- subl $1, (%edi)
-#else
- subl $1, MUTEX(%edi)
-#endif
- jne 3f
-
-4: xorl %eax, %eax
- popl %edi
- popl %ebx
- ret
-
-1:
-#if MUTEX == 0
- movl %edi, %edx
-#else
- leal MUTEX(%edi), %edx
-#endif
- movzbl PSHARED(%edi), %ecx
- call __lll_lock_wait
- jmp 2b
-
-3:
-#if MUTEX == 0
- movl %edi, %eax
-#else
- leal MUTEX(%edi), %eax
-#endif
- movzbl PSHARED(%edi), %ecx
- call __lll_unlock_wake
- jmp 4b
-
-7:
-#if MUTEX == 0
- movl %edi, %eax
-#else
- leal MUTEX(%edi), %eax
-#endif
- movzbl PSHARED(%edi), %ecx
- call __lll_unlock_wake
- jmp 8b
- cfi_endproc
- .size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock
-
-strong_alias (__pthread_rwlock_unlock, pthread_rwlock_unlock)
-hidden_def (__pthread_rwlock_unlock)
diff --git a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
deleted file mode 100644
index 8345cae1ea..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S
+++ /dev/null
@@ -1,183 +0,0 @@
-/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <lowlevellock.h>
-#include <lowlevelrwlock.h>
-#include <pthread-errnos.h>
-#include <kernel-features.h>
-
-#include <stap-probe.h>
-
- .text
-
- .globl __pthread_rwlock_wrlock
- .type __pthread_rwlock_wrlock,@function
- .align 16
-__pthread_rwlock_wrlock:
- cfi_startproc
- pushl %esi
- cfi_adjust_cfa_offset(4)
- pushl %ebx
- cfi_adjust_cfa_offset(4)
- cfi_offset(%esi, -8)
- cfi_offset(%ebx, -12)
-
- xorl %esi, %esi
- movl 12(%esp), %ebx
-
- LIBC_PROBE (wrlock_entry, 1, %ebx)
-
- /* Get the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebx)
-#else
- cmpxchgl %edx, MUTEX(%ebx)
-#endif
- jnz 1f
-
-2: movl WRITER(%ebx), %eax
- testl %eax, %eax
- jne 14f
- cmpl $0, NR_READERS(%ebx)
- je 5f
-
-3: addl $1, WRITERS_QUEUED(%ebx)
- je 4f
-
- movl WRITERS_WAKEUP(%ebx), %edx
-
- LOCK
-#if MUTEX == 0
- subl $1, (%ebx)
-#else
- subl $1, MUTEX(%ebx)
-#endif
- jne 10f
-
-11:
-#ifdef __ASSUME_PRIVATE_FUTEX
- movzbl PSHARED(%ebx), %ecx
- xorl $FUTEX_PRIVATE_FLAG|FUTEX_WAIT, %ecx
-#else
- movzbl PSHARED(%ebx), %ecx
-# if FUTEX_WAIT != 0
- orl $FUTEX_WAIT, %ecx
-# endif
- xorl %gs:PRIVATE_FUTEX, %ecx
-#endif
- addl $WRITERS_WAKEUP, %ebx
- movl $SYS_futex, %eax
- ENTER_KERNEL
-
- subl $WRITERS_WAKEUP, %ebx
-
- /* Reget the lock. */
- movl $1, %edx
- xorl %eax, %eax
- LOCK
-#if MUTEX == 0
- cmpxchgl %edx, (%ebx)
-#else
- cmpxchgl %edx, MUTEX(%ebx)
-#endif
- jnz 12f
-
-13: subl $1, WRITERS_QUEUED(%ebx)
- jmp 2b
-
-5: xorl %edx, %edx
- movl %gs:TID, %eax
- movl %eax, WRITER(%ebx)
-9: LOCK
-#if MUTEX == 0
- subl $1, (%ebx)
-#else
- subl $1, MUTEX(%ebx)
-#endif
- jne 6f
-7:
-
- movl %edx, %eax
- popl %ebx
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%ebx)
- popl %esi
- cfi_adjust_cfa_offset(-4)
- cfi_restore(%esi)
- ret
-
- cfi_adjust_cfa_offset(8)
- cfi_offset(%esi, -8)
- cfi_offset(%ebx, -12)
-1:
-#if MUTEX == 0
- movl %ebx, %edx
-#else
- leal MUTEX(%ebx), %edx
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_lock_wait
- jmp 2b
-
-14: cmpl %gs:TID , %eax
- jne 3b
- movl $EDEADLK, %edx
- jmp 9b
-
-6:
-#if MUTEX == 0
- movl %ebx, %eax
-#else
- leal MUTEX(%ebx), %eax
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_unlock_wake
- jmp 7b
-
-4: subl $1, WRITERS_QUEUED(%ebx)
- movl $EAGAIN, %edx
- jmp 9b
-
-10:
-#if MUTEX == 0
- movl %ebx, %eax
-#else
- leal MUTEX(%ebx), %eax
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_unlock_wake
- jmp 11b
-
-12:
-#if MUTEX == 0
- movl %ebx, %edx
-#else
- leal MUTEX(%ebx), %edx
-#endif
- movzbl PSHARED(%ebx), %ecx
- call __lll_lock_wait
- jmp 13b
- cfi_endproc
- .size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock
-
-strong_alias (__pthread_rwlock_wrlock, pthread_rwlock_wrlock)
-hidden_def (__pthread_rwlock_wrlock)
diff --git a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S b/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S
deleted file mode 100644
index 85127c7824..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_rdlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S b/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S
deleted file mode 100644
index 5a843e5986..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_timedrdlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S b/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S
deleted file mode 100644
index a8ca4cf51a..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_timedwrlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S b/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S
deleted file mode 100644
index 8018c8fa98..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_unlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S b/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S
deleted file mode 100644
index 0b4cfa8637..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_wrlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S b/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S
deleted file mode 100644
index 85127c7824..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_rdlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S b/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S
deleted file mode 100644
index 5a843e5986..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_timedrdlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S b/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S
deleted file mode 100644
index a8ca4cf51a..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_timedwrlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S b/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S
deleted file mode 100644
index e52344b66a..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#define HAVE_CMOV 1
-#include "../i486/pthread_rwlock_unlock.S"
diff --git a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S b/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S
deleted file mode 100644
index 0b4cfa8637..0000000000
--- a/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "../i486/pthread_rwlock_wrlock.S"