diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/i386')
63 files changed, 5235 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h new file mode 100644 index 000000000..4d1c9450b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/pthreadtypes.h @@ -0,0 +1,160 @@ +/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _BITS_PTHREADTYPES_H +#define _BITS_PTHREADTYPES_H 1 + +#define __SIZEOF_PTHREAD_ATTR_T 36 +#define __SIZEOF_PTHREAD_MUTEX_T 24 +#define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +#define __SIZEOF_PTHREAD_COND_T 48 +#define __SIZEOF_PTHREAD_COND_COMPAT_T 12 +#define __SIZEOF_PTHREAD_CONDATTR_T 4 +#define __SIZEOF_PTHREAD_RWLOCK_T 32 +#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +#define __SIZEOF_PTHREAD_BARRIER_T 20 +#define __SIZEOF_PTHREAD_BARRIERATTR_T 4 + + +/* Thread identifiers. The structure of the attribute type is not + exposed on purpose. */ +typedef unsigned long int pthread_t; + + +typedef union +{ + char __size[__SIZEOF_PTHREAD_ATTR_T]; + long int __align; +} pthread_attr_t; + + +/* Data structures for mutex handling. The structure of the attribute + type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __count; + int __owner; + /* KIND must stay at this position in the structure to maintain + binary compatibility. */ + int __kind; + unsigned int __nusers; + int __spins; + } __data; + char __size[__SIZEOF_PTHREAD_MUTEX_T]; + long int __align; +} pthread_mutex_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; + long int __align; +} pthread_mutexattr_t; + + +/* Data structure for conditional variable handling. The structure of + the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __futex; + __extension__ unsigned long long int __total_seq; + __extension__ unsigned long long int __wakeup_seq; + __extension__ unsigned long long int __woken_seq; + void *__mutex; + unsigned int __nwaiters; + unsigned int __broadcast_seq; + } __data; + char __size[__SIZEOF_PTHREAD_COND_T]; + __extension__ long long int __align; +} pthread_cond_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_CONDATTR_T]; + long int __align; +} pthread_condattr_t; + + +/* Keys for thread-specific data */ +typedef unsigned int pthread_key_t; + + +/* Once-only execution */ +typedef int pthread_once_t; + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Data structure for read-write lock variable handling. The + structure of the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __nr_readers; + unsigned int __readers_wakeup; + unsigned int __writer_wakeup; + unsigned int __nr_readers_queued; + unsigned int __nr_writers_queued; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned int __flags; + int __writer; + } __data; + char __size[__SIZEOF_PTHREAD_RWLOCK_T]; + long int __align; +} pthread_rwlock_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; + long int __align; +} pthread_rwlockattr_t; +#endif + + +#ifdef __USE_XOPEN2K +/* POSIX spinlock data type. */ +typedef volatile int pthread_spinlock_t; + + +/* POSIX barriers data type. The structure of the type is + deliberately not exposed. */ +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIER_T]; + long int __align; +} pthread_barrier_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; + int __align; +} pthread_barrierattr_t; +#endif + + +/* Extra attributes for the cleanup functions. */ +#define __cleanup_fct_attribute __attribute ((regparm (1))) + +#endif /* bits/pthreadtypes.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/semaphore.h new file mode 100644 index 000000000..e6c5d845c --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/bits/semaphore.h @@ -0,0 +1,39 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SEMAPHORE_H +# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." +#endif + + +#define __SIZEOF_SEM_T 16 + + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) 0) + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX (2147483647) + + +typedef union +{ + char __size[__SIZEOF_SEM_T]; + long int __align; +} sem_t; diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S new file mode 100644 index 000000000..95c17f18e --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S @@ -0,0 +1,2 @@ +#define RESET_PID +#include <sysdeps/unix/sysv/linux/i386/clone.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c new file mode 100644 index 000000000..37e3d9499 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c @@ -0,0 +1,49 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* The "thread register" gets initialized from a segment descriptor. + Initialize such a descriptor first. */ +#define PREPARE_CREATE \ + union user_desc_init desc; \ + \ + /* Describe the thread-local storage segment. */ \ + \ + /* The 'entry_number' field. The first three bits of the segment \ + register value select the GDT, ignore them. We get the index \ + from the value of the %gs register in the current thread. */ \ + desc.vals[0] = TLS_GET_GS () >> 3; \ + /* The 'base_addr' field. Pointer to the TCB. */ \ + desc.vals[1] = (unsigned long int) pd; \ + /* The 'limit' field. We use 4GB which is 0xfffff pages. */ \ + desc.vals[2] = 0xfffff; \ + /* Collapsed value of the bitfield: \ + .seg_32bit = 1 \ + .contents = 0 \ + .read_exec_only = 0 \ + .limit_in_pages = 1 \ + .seg_not_present = 0 \ + .useable = 1 */ \ + desc.vals[3] = 0x51 + +/* Value passed to 'clone' for initialization of the thread register. */ +#define TLS_VALUE &desc.desc + + +/* Get the real implementation. */ +#include <nptl/sysdeps/pthread/createthread.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h new file mode 100644 index 000000000..109ffd1cf --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/dl-sysdep.h @@ -0,0 +1,64 @@ +/* System-specific settings for dynamic linker code. IA-32 version. + Copyright (C) 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _DL_SYSDEP_H +#define _DL_SYSDEP_H 1 + +/* This macro must be defined to either 0 or 1. + + If 1, then an errno global variable hidden in ld.so will work right with + all the errno-using libc code compiled for ld.so, and there is never a + need to share the errno location with libc. This is appropriate only if + all the libc functions that ld.so uses are called without PLT and always + get the versions linked into ld.so rather than the libc ones. */ + +#ifdef IS_IN_rtld +# define RTLD_PRIVATE_ERRNO 1 +#else +# define RTLD_PRIVATE_ERRNO 0 +#endif + +/* Traditionally system calls have been made using int $0x80. A + second method was introduced which, if possible, will use the + sysenter/syscall instructions. To signal the presence and where to + find the code the kernel passes an AT_SYSINFO value in the + auxiliary vector to the application. + sysenter/syscall is not useful on i386 through i586, but the dynamic + linker and dl code in libc.a has to be able to load i686 compiled + libraries. */ +#define NEED_DL_SYSINFO 1 +#undef USE_DL_SYSINFO + +#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__ +extern void _dl_sysinfo_int80 (void) attribute_hidden; +# define DL_SYSINFO_DEFAULT (uintptr_t) _dl_sysinfo_int80 +# define DL_SYSINFO_IMPLEMENTATION \ + asm (".text\n\t" \ + ".type _dl_sysinfo_int80,@function\n\t" \ + ".hidden _dl_sysinfo_int80\n\t" \ + CFI_STARTPROC "\n" \ + "_dl_sysinfo_int80:\n\t" \ + "int $0x80;\n\t" \ + "ret;\n\t" \ + CFI_ENDPROC "\n" \ + ".size _dl_sysinfo_int80,.-_dl_sysinfo_int80\n\t" \ + ".previous;"); +#endif + +#endif /* dl-sysdep.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/fork.c new file mode 100644 index 000000000..813e5299a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/fork.c @@ -0,0 +1,31 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sched.h> +#include <signal.h> +#include <sysdep.h> +#include <tls.h> + + +#define ARCH_FORK() \ + INLINE_SYSCALL (clone, 5, \ + CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \ + NULL, NULL, &THREAD_SELF->tid) + +#include "../fork.c" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S new file mode 100644 index 000000000..223b11108 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S @@ -0,0 +1,30 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* In libc.so we do not unconditionally use the lock prefix. Only if + the application is using threads. */ +#ifndef UP +# define LOCK \ + cmpl $0, %gs:MULTIPLE_THREADS_OFFSET; \ + je,pt 0f; \ + lock; \ +0: +#endif + +#include "lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S new file mode 100644 index 000000000..dc65b709a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S @@ -0,0 +1,285 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <pthread-errnos.h> + + .text + +#ifndef LOCK +# ifdef UP +# define LOCK +# else +# define LOCK lock +# endif +#endif + +#define SYS_gettimeofday __NR_gettimeofday +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + + + .globl __lll_mutex_lock_wait + .type __lll_mutex_lock_wait,@function + .hidden __lll_mutex_lock_wait + .align 16 +__lll_mutex_lock_wait: + pushl %edx + pushl %ebx + pushl %esi + + movl $2, %edx + movl %ecx, %ebx + xorl %esi, %esi /* No timeout. */ + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + + cmpl %edx, %eax /* NB: %edx == 2 */ + jne 2f + +1: movl $SYS_futex, %eax + ENTER_KERNEL + +2: movl %edx, %eax + xchgl %eax, (%ebx) /* NB: lock is implied */ + + testl %eax, %eax + jnz,pn 1b + + popl %esi + popl %ebx + popl %edx + ret + .size __lll_mutex_lock_wait,.-__lll_mutex_lock_wait + + +#ifdef NOT_IN_libc + .globl __lll_mutex_timedlock_wait + .type __lll_mutex_timedlock_wait,@function + .hidden __lll_mutex_timedlock_wait + .align 16 +__lll_mutex_timedlock_wait: + /* Check for a valid timeout value. */ + cmpl $1000000000, 4(%edx) + jae 3f + + pushl %edi + pushl %esi + pushl %ebx + pushl %ebp + + /* Stack frame for the timespec and timeval structs. */ + subl $8, %esp + + movl %ecx, %ebp + movl %edx, %edi + +1: + /* Get current time. */ + movl %esp, %ebx + xorl %ecx, %ecx + movl $SYS_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 4f + addl $1000000000, %edx + subl $1, %ecx +4: testl %ecx, %ecx + js 5f /* Time is already up. */ + + /* Store relative timeout. */ + movl %ecx, (%esp) + movl %edx, 4(%esp) + + movl %ebp, %ebx + + movl $1, %eax + movl $2, %edx + LOCK + cmpxchgl %edx, (%ebx) + + testl %eax, %eax + je 8f + + /* Futex call. */ + movl %esp, %esi + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl $SYS_futex, %eax + ENTER_KERNEL + movl %eax, %ecx + +8: /* NB: %edx == 2 */ + xorl %eax, %eax + LOCK + cmpxchgl %edx, (%ebx) + + jnz 7f + +6: addl $8, %esp + popl %ebp + popl %ebx + popl %esi + popl %edi + ret + + /* Check whether the time expired. */ +7: cmpl $-ETIMEDOUT, %ecx + je 5f + + /* Make sure the current holder knows we are going to sleep. */ + movl %edx, %eax + xchgl %eax, (%ebx) + testl %eax, %eax + jz 6b + jmp 1b + +3: movl $EINVAL, %eax + ret + +5: movl $ETIMEDOUT, %eax + jmp 6b + .size __lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait +#endif + + +#ifdef NOT_IN_libc + .globl lll_unlock_wake_cb + .type lll_unlock_wake_cb,@function + .hidden lll_unlock_wake_cb + .align 16 +lll_unlock_wake_cb: + pushl %ebx + pushl %ecx + pushl %edx + + movl 20(%esp), %ebx + LOCK + subl $1, (%ebx) + je 1f + + movl $FUTEX_WAKE, %ecx + movl $1, %edx /* Wake one thread. */ + movl $SYS_futex, %eax + movl $0, (%ebx) + ENTER_KERNEL + +1: popl %edx + popl %ecx + popl %ebx + ret + .size lll_unlock_wake_cb,.-lll_unlock_wake_cb +#endif + + + .globl __lll_mutex_unlock_wake + .type __lll_mutex_unlock_wake,@function + .hidden __lll_mutex_unlock_wake + .align 16 +__lll_mutex_unlock_wake: + pushl %ebx + pushl %ecx + pushl %edx + + movl %eax, %ebx + movl $0, (%eax) + movl $FUTEX_WAKE, %ecx + movl $1, %edx /* Wake one thread. */ + movl $SYS_futex, %eax + ENTER_KERNEL + + popl %edx + popl %ecx + popl %ebx + ret + .size __lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake + + +#ifdef NOT_IN_libc + .globl __lll_timedwait_tid + .type __lll_timedwait_tid,@function + .hidden __lll_timedwait_tid + .align 16 +__lll_timedwait_tid: + pushl %edi + pushl %esi + pushl %ebx + pushl %ebp + + movl %eax, %ebp + movl %edx, %edi + subl $8, %esp + + /* Get current time. */ +2: movl %esp, %ebx + xorl %ecx, %ecx + movl $SYS_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 5f + addl $1000000000, %edx + subl $1, %ecx +5: testl %ecx, %ecx + js 6f /* Time is already up. */ + + movl %ecx, (%esp) /* Store relative timeout. */ + movl %edx, 4(%esp) + + movl (%ebp), %edx + testl %edx, %edx + jz 4f + + movl %esp, %esi + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl %ebp, %ebx + movl $SYS_futex, %eax + ENTER_KERNEL + + cmpl $0, (%ebx) + jne 1f +4: xorl %eax, %eax + +3: addl $8, %esp + popl %ebp + popl %ebx + popl %esi + popl %edi + ret + +1: cmpl $-ETIMEDOUT, %eax + jne 2b +6: movl $ETIMEDOUT, %eax + jmp 3b + .size __lll_timedwait_tid,.-__lll_timedwait_tid +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S new file mode 100644 index 000000000..114284c44 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S @@ -0,0 +1,163 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelbarrier.h> + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl pthread_barrier_wait + .type pthread_barrier_wait,@function + .align 16 +pthread_barrier_wait: + pushl %ebx + + movl 8(%esp), %ebx + + /* Get the mutex. */ + movl $1, %edx + xorl %eax, %eax + LOCK + cmpxchgl %edx, MUTEX(%ebx) + jnz 1f + + /* One less waiter. If this was the last one needed wake + everybody. */ +2: subl $1, LEFT(%ebx) + je 3f + + /* There are more threads to come. */ + pushl %esi + +#if CURR_EVENT == 0 + movl (%ebx), %edx +#else + movl CURR_EVENT(%ebx), %edx +#endif + + /* Release the mutex. */ + LOCK + subl $1, MUTEX(%ebx) + jne 6f + + /* Wait for the remaining threads. The call will return immediately + if the CURR_EVENT memory has meanwhile been changed. */ +7: xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + xorl %esi, %esi +8: movl $SYS_futex, %eax + ENTER_KERNEL + + /* Don't return on spurious wakeups. The syscall does not change + any register except %eax so there is no need to reload any of + them. */ +#if CURR_EVENT == 0 + cmpl %edx, (%ebx) +#else + cmpl %edx, CURR_EVENT(%ebx) +#endif + je,pn 8b + + /* Increment LEFT. If this brings the count back to the + initial count unlock the object. */ + movl $1, %edx + movl INIT_COUNT(%ebx), %ecx + LOCK + xaddl %edx, LEFT(%ebx) + subl $1, %ecx + cmpl %ecx, %edx + jne,pt 10f + + /* Release the mutex. We cannot release the lock before + waking the waiting threads since otherwise a new thread might + arrive and gets waken up, too. */ + LOCK + subl $1, MUTEX(%ebx) + jne 9f + + /* Note: %esi is still zero. */ +10: movl %esi, %eax /* != PTHREAD_BARRIER_SERIAL_THREAD */ + + popl %esi + popl %ebx + ret + + /* The necessary number of threads arrived. */ +3: +#if CURR_EVENT == 0 + addl $1, (%ebx) +#else + addl $1, CURR_EVENT(%ebx) +#endif + + /* Wake up all waiters. The count is a signed number in the kernel + so 0x7fffffff is the highest value. */ + movl $0x7fffffff, %edx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + ENTER_KERNEL + + /* Increment LEFT. If this brings the count back to the + initial count unlock the object. */ + movl $1, %edx + movl INIT_COUNT(%ebx), %ecx + LOCK + xaddl %edx, LEFT(%ebx) + subl $1, %ecx + cmpl %ecx, %edx + jne,pt 5f + + /* Release the mutex. We cannot release the lock before + waking the waiting threads since otherwise a new thread might + arrive and gets waken up, too. */ + LOCK + subl $1, MUTEX(%ebx) + jne 4f + +5: orl $-1, %eax /* == PTHREAD_BARRIER_SERIAL_THREAD */ + + popl %ebx + ret + +1: leal MUTEX(%ebx), %ecx + call __lll_mutex_lock_wait + jmp 2b + +4: leal MUTEX(%ebx), %eax + call __lll_mutex_unlock_wake + jmp 5b + +6: leal MUTEX(%ebx), %eax + call __lll_mutex_unlock_wake + jmp 7b + +9: leal MUTEX(%ebx), %eax + call __lll_mutex_unlock_wake + jmp 10b + .size pthread_barrier_wait,.-pthread_barrier_wait diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S new file mode 100644 index 000000000..5471c1c92 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S @@ -0,0 +1,164 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <lowlevelcond.h> +#include <kernel-features.h> + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 +#define FUTEX_REQUEUE 3 +#define FUTEX_CMP_REQUEUE 4 + +#define EINVAL 22 + + + .text + + /* int pthread_cond_broadcast (pthread_cond_t *cond) */ + .globl __pthread_cond_broadcast + .type __pthread_cond_broadcast, @function + .align 16 +__pthread_cond_broadcast: + + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + + movl 20(%esp), %ebx + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 1f + +2: addl $cond_futex, %ebx + movl total_seq+4-cond_futex(%ebx), %eax + movl total_seq-cond_futex(%ebx), %ebp + cmpl wakeup_seq+4-cond_futex(%ebx), %eax + ja 3f + jb 4f + cmpl wakeup_seq-cond_futex(%ebx), %ebp + jna 4f + + /* Cause all currently waiting threads to recognize they are + woken up. */ +3: movl %ebp, wakeup_seq-cond_futex(%ebx) + movl %eax, wakeup_seq-cond_futex+4(%ebx) + movl %ebp, woken_seq-cond_futex(%ebx) + movl %eax, woken_seq-cond_futex+4(%ebx) + addl %ebp, %ebp + addl $1, broadcast_seq-cond_futex(%ebx) + movl %ebp, (%ebx) + + /* Get the address of the mutex used. */ + movl dep_mutex-cond_futex(%ebx), %edi + + /* Unlock. */ + LOCK + subl $1, cond_lock-cond_futex(%ebx) + jne 7f + + /* Don't use requeue for pshared condvars. */ +8: cmpl $-1, %edi + je 9f + + /* Wake up all threads. */ + movl $FUTEX_CMP_REQUEUE, %ecx + movl $SYS_futex, %eax + movl $0x7fffffff, %esi + movl $1, %edx + /* Get the address of the futex involved. */ +# if MUTEX_FUTEX != 0 + addl $MUTEX_FUTEX, %edi +# endif +/* FIXME: Until Ingo fixes 4G/4G vDSO, 6 arg syscalls are broken for sysenter. + ENTER_KERNEL */ + int $0x80 + + /* For any kind of error, which mainly is EAGAIN, we try again + with WAKE. The general test also covers running on old + kernels. */ + cmpl $0xfffff001, %eax + jae 9f + +10: xorl %eax, %eax + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + .align 16 + /* Unlock. */ +4: LOCK + subl $1, cond_lock-cond_futex(%ebx) + jne 5f + +6: xorl %eax, %eax + popl %ebp + popl %edi + popl %esi + popl %ebx + ret + + /* Initial locking failed. */ +1: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + + /* Unlock in loop requires waekup. */ +5: leal cond_lock-cond_futex(%ebx), %eax + call __lll_mutex_unlock_wake + jmp 6b + + /* Unlock in loop requires waekup. */ +7: leal cond_lock-cond_futex(%ebx), %eax + call __lll_mutex_unlock_wake + jmp 8b + +9: /* The futex requeue functionality is not available. */ + movl $0x7fffffff, %edx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + ENTER_KERNEL + jmp 10b + .size __pthread_cond_broadcast, .-__pthread_cond_broadcast +versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast, + GLIBC_2_3_2) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S new file mode 100644 index 000000000..3c5a1db59 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S @@ -0,0 +1,114 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <lowlevelcond.h> +#include <kernel-features.h> + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 +#define FUTEX_REQUEUE 3 + +#define EINVAL 22 + + + .text + + /* int pthread_cond_signal (pthread_cond_t *cond) */ + .globl __pthread_cond_signal + .type __pthread_cond_signal, @function + .align 16 +__pthread_cond_signal: + + pushl %ebx + pushl %edi + + movl 12(%esp), %edi + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%edi) +#else + cmpxchgl %edx, cond_lock(%edi) +#endif + jnz 1f + +2: leal cond_futex(%edi), %ebx + movl total_seq+4(%edi), %eax + movl total_seq(%edi), %ecx + cmpl wakeup_seq+4(%edi), %eax +#if cond_lock != 0 + /* Must use leal to preserve the flags. */ + leal cond_lock(%edi), %edi +#endif + ja 3f + jb 4f + cmpl wakeup_seq-cond_futex(%ebx), %ecx + jbe 4f + + /* Bump the wakeup number. */ +3: addl $1, wakeup_seq-cond_futex(%ebx) + adcl $0, wakeup_seq-cond_futex+4(%ebx) + addl $1, (%ebx) + + /* Wake up one thread. */ + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + movl $1, %edx + ENTER_KERNEL + + /* Unlock. Note that at this point %edi always points to + cond_lock. */ +4: LOCK + subl $1, (%edi) + jne 5f + +6: xorl %eax, %eax + popl %edi + popl %ebx + ret + + /* Initial locking failed. */ +1: +#if cond_lock == 0 + movl %edi, %ecx +#else + leal cond_lock(%edi), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + + /* Unlock in loop requires wakeup. */ +5: movl %edi, %eax + call __lll_mutex_unlock_wake + jmp 6b + .size __pthread_cond_signal, .-__pthread_cond_signal +versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, + GLIBC_2_3_2) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S new file mode 100644 index 000000000..699c2cb22 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S @@ -0,0 +1,637 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <lowlevelcond.h> +#include <pthread-errnos.h> + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + +#define SYS_gettimeofday __NR_gettimeofday +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + + + .text + +/* int pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, + const struct timespec *abstime) */ + .globl __pthread_cond_timedwait + .type __pthread_cond_timedwait, @function + .align 16 +__pthread_cond_timedwait: +.LSTARTCODE: + pushl %ebp +.Lpush_ebp: + pushl %edi +.Lpush_edi: + pushl %esi +.Lpush_esi: + pushl %ebx +.Lpush_ebx: + + movl 20(%esp), %ebx + movl 28(%esp), %ebp + + cmpl $1000000000, 4(%ebp) + movl $EINVAL, %eax + jae 18f + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 1f + + /* Store the reference to the mutex. If there is already a + different value in there this is a bad user bug. */ +2: cmpl $-1, dep_mutex(%ebx) + movl 24(%esp), %eax + je 17f + movl %eax, dep_mutex(%ebx) + + /* Unlock the mutex. */ +17: xorl %edx, %edx + call __pthread_mutex_unlock_usercnt + + testl %eax, %eax + jne 16f + + addl $1, total_seq(%ebx) + adcl $0, total_seq+4(%ebx) + addl $1, cond_futex(%ebx) + addl $(1 << clock_bits), cond_nwaiters(%ebx) + +#define FRAME_SIZE 24 + subl $FRAME_SIZE, %esp +.Lsubl: + + /* Get and store current wakeup_seq value. */ + movl wakeup_seq(%ebx), %edi + movl wakeup_seq+4(%ebx), %edx + movl broadcast_seq(%ebx), %eax + movl %edi, 12(%esp) + movl %edx, 16(%esp) + movl %eax, 20(%esp) + + /* Get the current time. */ +8: movl %ebx, %edx +#ifdef __NR_clock_gettime + /* Get the clock number. */ + movl cond_nwaiters(%ebx), %ebx + andl $((1 << clock_bits) - 1), %ebx + /* Only clocks 0 and 1 are allowed so far. Both are handled in the + kernel. */ + leal 4(%esp), %ecx + movl $__NR_clock_gettime, %eax + ENTER_KERNEL +# ifndef __ASSUME_POSIX_TIMERS + cmpl $-ENOSYS, %eax + je 19f +# endif + movl %edx, %ebx + + /* Compute relative timeout. */ + movl (%ebp), %ecx + movl 4(%ebp), %edx + subl 4(%esp), %ecx + subl 8(%esp), %edx +#else + /* Get the current time. */ + leal 4(%esp), %ebx + xorl %ecx, %ecx + movl $SYS_gettimeofday, %eax + ENTER_KERNEL + movl %edx, %ebx + + /* Compute relative timeout. */ + movl 8(%esp), %eax + movl $1000, %edx + mul %edx /* Milli seconds to nano seconds. */ + movl (%ebp), %ecx + movl 4(%ebp), %edx + subl 4(%esp), %ecx + subl %eax, %edx +#endif + jns 12f + addl $1000000000, %edx + subl $1, %ecx +12: testl %ecx, %ecx + movl $-ETIMEDOUT, %esi + js 6f + + /* Store relative timeout. */ +21: movl %ecx, 4(%esp) + movl %edx, 8(%esp) + + movl cond_futex(%ebx), %edi + + /* Unlock. */ + LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 3f + +.LcleanupSTART: +4: call __pthread_enable_asynccancel + movl %eax, (%esp) + + leal 4(%esp), %esi + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl %edi, %edx + addl $cond_futex, %ebx +.Ladd_cond_futex: + movl $SYS_futex, %eax + ENTER_KERNEL + subl $cond_futex, %ebx +.Lsub_cond_futex: + movl %eax, %esi + + movl (%esp), %eax + call __pthread_disable_asynccancel +.LcleanupEND: + + /* Lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 5f + +6: movl broadcast_seq(%ebx), %eax + cmpl 20(%esp), %eax + jne 23f + + movl woken_seq(%ebx), %eax + movl woken_seq+4(%ebx), %ecx + + movl wakeup_seq(%ebx), %edi + movl wakeup_seq+4(%ebx), %edx + + cmpl 16(%esp), %edx + jne 7f + cmpl 12(%esp), %edi + je 15f + +7: cmpl %ecx, %edx + jne 9f + cmp %eax, %edi + jne 9f + +15: cmpl $-ETIMEDOUT, %esi + jne 8b + + addl $1, wakeup_seq(%ebx) + adcl $0, wakeup_seq+4(%ebx) + addl $1, cond_futex(%ebx) + movl $ETIMEDOUT, %esi + jmp 14f + +23: xorl %esi, %esi + jmp 24f + +9: xorl %esi, %esi +14: addl $1, woken_seq(%ebx) + adcl $0, woken_seq+4(%ebx) + +24: subl $(1 << clock_bits), cond_nwaiters(%ebx) + + /* Wake up a thread which wants to destroy the condvar object. */ + movl total_seq(%ebx), %eax + andl total_seq+4(%ebx), %eax + cmpl $0xffffffff, %eax + jne 25f + movl cond_nwaiters(%ebx), %eax + andl $~((1 << clock_bits) - 1), %eax + jne 25f + + addl $cond_nwaiters, %ebx + movl $SYS_futex, %eax + movl $FUTEX_WAKE, %ecx + movl $1, %edx + ENTER_KERNEL + subl $cond_nwaiters, %ebx + +25: LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 10f + + /* Remove cancellation handler. */ +11: movl 24+FRAME_SIZE(%esp), %eax + call __pthread_mutex_cond_lock + addl $FRAME_SIZE, %esp +.Laddl: + + /* We return the result of the mutex_lock operation if it failed. */ + testl %eax, %eax +#ifdef HAVE_CMOV + cmovel %esi, %eax +#else + jne 22f + movl %esi, %eax +22: +#endif + +18: popl %ebx +.Lpop_ebx: + popl %esi +.Lpop_esi: + popl %edi +.Lpop_edi: + popl %ebp +.Lpop_ebp: + + ret + + /* Initial locking failed. */ +1: +.LSbl1: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + + /* Unlock in loop requires wakeup. */ +3: +.LSbl2: +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 4b + + /* Locking in loop failed. */ +5: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 6b + + /* Unlock after loop requires wakeup. */ +10: +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + + /* The initial unlocking of the mutex failed. */ +16: +.LSbl3: + LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 18b + + movl %eax, %esi +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + + movl %esi, %eax + jmp 18b + +#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS + /* clock_gettime not available. */ +.LSbl4: +19: leal 4(%esp), %ebx + xorl %ecx, %ecx + movl $SYS_gettimeofday, %eax + ENTER_KERNEL + movl %edx, %ebx + + /* Compute relative timeout. */ + movl 8(%esp), %eax + movl $1000, %edx + mul %edx /* Milli seconds to nano seconds. */ + movl (%ebp), %ecx + movl 4(%ebp), %edx + subl 4(%esp), %ecx + subl %eax, %edx + jns 20f + addl $1000000000, %edx + subl $1, %ecx +20: testl %ecx, %ecx + movl $-ETIMEDOUT, %esi + js 6b + jmp 21b +#endif + .size __pthread_cond_timedwait, .-__pthread_cond_timedwait +versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, + GLIBC_2_3_2) + + + .type __condvar_tw_cleanup2, @function +__condvar_tw_cleanup2: + subl $cond_futex, %ebx +.LSbl5: + .size __condvar_tw_cleanup2, .-__condvar_tw_cleanup2 + .type __condvar_tw_cleanup, @function +__condvar_tw_cleanup: + movl %eax, %esi + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jz 1f + +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + +1: movl broadcast_seq(%ebx), %eax + cmpl 20(%esp), %eax + jne 3f + + addl $1, wakeup_seq(%ebx) + adcl $0, wakeup_seq+4(%ebx) + + addl $1, cond_futex(%ebx) + + addl $1, woken_seq(%ebx) + adcl $0, woken_seq+4(%ebx) + +3: subl $(1 << clock_bits), cond_nwaiters(%ebx) + + /* Wake up a thread which wants to destroy the condvar object. */ + xorl %edi, %edi + movl total_seq(%ebx), %eax + andl total_seq+4(%ebx), %eax + cmpl $0xffffffff, %eax + jne 4f + movl cond_nwaiters(%ebx), %eax + andl $~((1 << clock_bits) - 1), %eax + jne 4f + + addl $cond_nwaiters, %ebx + movl $SYS_futex, %eax + movl $FUTEX_WAKE, %ecx + movl $1, %edx + ENTER_KERNEL + subl $cond_nwaiters, %ebx + movl $1, %edi + +4: LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + je 2f + +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + + /* Wake up all waiters to make sure no signal gets lost. */ +2: testl %edi, %edi + jnz 5f + addl $cond_futex, %ebx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + movl $0x7fffffff, %edx + ENTER_KERNEL + +5: movl 24+FRAME_SIZE(%esp), %eax + call __pthread_mutex_cond_lock + + movl %esi, (%esp) +.LcallUR: + call _Unwind_Resume + hlt +.LENDCODE: + .size __condvar_tw_cleanup, .-__condvar_tw_cleanup + + + .section .gcc_except_table,"a",@progbits +.LexceptSTART: + .byte 0xff # @LPStart format (omit) + .byte 0xff # @TType format (omit) + .byte 0x0b # call-site format + # DW_EH_PE_sdata4 + .uleb128 .Lcstend-.Lcstbegin +.Lcstbegin: + .long .LcleanupSTART-.LSTARTCODE + .long .Ladd_cond_futex-.LcleanupSTART + .long __condvar_tw_cleanup-.LSTARTCODE + .uleb128 0 + .long .Ladd_cond_futex-.LSTARTCODE + .long .Lsub_cond_futex-.Ladd_cond_futex + .long __condvar_tw_cleanup2-.LSTARTCODE + .uleb128 0 + .long .Lsub_cond_futex-.LSTARTCODE + .long .LcleanupEND-.Lsub_cond_futex + .long __condvar_tw_cleanup-.LSTARTCODE + .uleb128 0 + .long .LcallUR-.LSTARTCODE + .long .LENDCODE-.LcallUR + .long 0 + .uleb128 0 +.Lcstend: + + + .section .eh_frame,"a",@progbits +.LSTARTFRAME: + .long L(ENDCIE)-L(STARTCIE) # Length of the CIE. +.LSTARTCIE: + .long 0 # CIE ID. + .byte 1 # Version number. +#ifdef SHARED + .string "zPLR" # NUL-terminated augmentation + # string. +#else + .string "zPL" # NUL-terminated augmentation + # string. +#endif + .uleb128 1 # Code alignment factor. + .sleb128 -4 # Data alignment factor. + .byte 8 # Return address register + # column. +#ifdef SHARED + .uleb128 7 # Augmentation value length. + .byte 0x9b # Personality: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4 + # + DW_EH_PE_indirect + .long DW.ref.__gcc_personality_v0-. + .byte 0x1b # LSDA Encoding: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4. + .byte 0x1b # FDE Encoding: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4. +#else + .uleb128 6 # Augmentation value length. + .byte 0x0 # Personality: absolute + .long __gcc_personality_v0 + .byte 0x0 # LSDA Encoding: absolute +#endif + .byte 0x0c # DW_CFA_def_cfa + .uleb128 4 + .uleb128 4 + .byte 0x88 # DW_CFA_offset, column 0x8 + .uleb128 1 + .align 4 +.LENDCIE: + + .long .LENDFDE-.LSTARTFDE # Length of the FDE. +.LSTARTFDE: + .long .LSTARTFDE-.LSTARTFRAME # CIE pointer. +#ifdef SHARED + .long .LSTARTCODE-. # PC-relative start address + # of the code +#else + .long .LSTARTCODE # Start address of the code. +#endif + .long .LENDCODE-.LSTARTCODE # Length of the code. + .uleb128 4 # Augmentation size +#ifdef SHARED + .long .LexceptSTART-. +#else + .long .LexceptSTART +#endif + .byte 0x40+.Lpush_ebp-.LSTARTCODE # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 8 + .byte 0x85 # DW_CFA_offset %ebp + .uleb128 2 + .byte 0x40+ .Lpush_edi-.Lpush_ebp # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 12 + .byte 0x87 # DW_CFA_offset %edi + .uleb128 3 + .byte 0x40+.Lpush_esi-.Lpush_edi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0x86 # DW_CFA_offset %esi + .uleb128 4 + .byte 0x40+.Lpush_ebx-.Lpush_esi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20 + .byte 0x83 # DW_CFA_offset %ebx + .uleb128 5 + .byte 2 # DW_CFA_advance_loc1 + .byte .Lsubl-.Lpush_ebx + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20+FRAME_SIZE + .byte 3 # DW_CFA_advance_loc2 + .2byte .Laddl-.Lsubl + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20 + .byte 0x40+.Lpop_ebx-.Laddl # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0xc3 # DW_CFA_restore %ebx + .byte 0x40+.Lpop_esi-.Lpop_ebx # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 12 + .byte 0xc6 # DW_CFA_restore %esi + .byte 0x40+.Lpop_edi-.Lpop_esi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 8 + .byte 0xc7 # DW_CFA_restore %edi + .byte 0x40+.Lpop_ebp-.Lpop_edi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 4 + .byte 0xc5 # DW_CFA_restore %ebp + .byte 0x40+.LSbl1-.Lpop_edi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20 + .byte 0x40+.LSbl2-.LSbl1 # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20+FRAME_SIZE + .byte 0x85 # DW_CFA_offset %ebp + .uleb128 2 + .byte 0x87 # DW_CFA_offset %edi + .uleb128 3 + .byte 0x86 # DW_CFA_offset %esi + .uleb128 4 + .byte 0x83 # DW_CFA_offset %ebx + .uleb128 5 + .byte 0x40+.LSbl3-.LSbl2 # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20 +#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS + .byte 0x40+.LSbl4-.LSbl3 # DW_CFA_advance_loc+N +#else + .byte 4 # DW_CFA_advance_loc4 + .long .LSbl5-.LSbl3 +#endif + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 20+FRAME_SIZE + .align 4 +.LENDFDE: + +#ifdef SHARED + .hidden DW.ref.__gcc_personality_v0 + .weak DW.ref.__gcc_personality_v0 + .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits + .align 4 + .type DW.ref.__gcc_personality_v0, @object + .size DW.ref.__gcc_personality_v0, 4 +DW.ref.__gcc_personality_v0: + .long __gcc_personality_v0 +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S new file mode 100644 index 000000000..d28278515 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -0,0 +1,523 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <lowlevelcond.h> +#include <tcb-offsets.h> + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + + + .text + +/* int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) */ + .globl __pthread_cond_wait + .type __pthread_cond_wait, @function + .align 16 +__pthread_cond_wait: +.LSTARTCODE: + + pushl %edi +.Lpush_edi: + pushl %esi +.Lpush_esi: + pushl %ebx +.Lpush_ebx: + + xorl %esi, %esi + movl 16(%esp), %ebx + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 1f + + /* Store the reference to the mutex. If there is already a + different value in there this is a bad user bug. */ +2: cmpl $-1, dep_mutex(%ebx) + movl 20(%esp), %eax + je 15f + movl %eax, dep_mutex(%ebx) + + /* Unlock the mutex. */ +15: xorl %edx, %edx + call __pthread_mutex_unlock_usercnt + + testl %eax, %eax + jne 12f + + addl $1, total_seq(%ebx) + adcl $0, total_seq+4(%ebx) + addl $1, cond_futex(%ebx) + addl $(1 << clock_bits), cond_nwaiters(%ebx) + +#define FRAME_SIZE 16 + subl $FRAME_SIZE, %esp +.Lsubl: + + /* Get and store current wakeup_seq value. */ + movl wakeup_seq(%ebx), %edi + movl wakeup_seq+4(%ebx), %edx + movl broadcast_seq(%ebx), %eax + movl %edi, 4(%esp) + movl %edx, 8(%esp) + movl %eax, 12(%esp) + +8: movl cond_futex(%ebx), %edi + + /* Unlock. */ + LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 3f + +.LcleanupSTART: +4: call __pthread_enable_asynccancel + movl %eax, (%esp) + + movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl %edi, %edx + addl $cond_futex, %ebx +.Ladd_cond_futex: + movl $SYS_futex, %eax + ENTER_KERNEL + subl $cond_futex, %ebx +.Lsub_cond_futex: + + movl (%esp), %eax + call __pthread_disable_asynccancel +.LcleanupEND: + + /* Lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jnz 5f + +6: movl broadcast_seq(%ebx), %eax + cmpl 12(%esp), %eax + jne 16f + + movl woken_seq(%ebx), %eax + movl woken_seq+4(%ebx), %ecx + + movl wakeup_seq(%ebx), %edi + movl wakeup_seq+4(%ebx), %edx + + cmpl 8(%esp), %edx + jne 7f + cmpl 4(%esp), %edi + je 8b + +7: cmpl %ecx, %edx + jne 9f + cmp %eax, %edi + je 8b + +9: addl $1, woken_seq(%ebx) + adcl $0, woken_seq+4(%ebx) + + /* Unlock */ +16: subl $(1 << clock_bits), cond_nwaiters(%ebx) + + /* Wake up a thread which wants to destroy the condvar object. */ + movl total_seq(%ebx), %eax + andl total_seq+4(%ebx), %eax + cmpl $0xffffffff, %eax + jne 17f + movl cond_nwaiters(%ebx), %eax + andl $~((1 << clock_bits) - 1), %eax + jne 17f + + addl $cond_nwaiters, %ebx + movl $SYS_futex, %eax + movl $FUTEX_WAKE, %ecx + movl $1, %edx + ENTER_KERNEL + subl $cond_nwaiters, %ebx + +17: LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 10f + +11: movl 20+FRAME_SIZE(%esp), %eax + call __pthread_mutex_cond_lock + addl $FRAME_SIZE, %esp +.Laddl: + +14: popl %ebx +.Lpop_ebx: + popl %esi +.Lpop_esi: + popl %edi +.Lpop_edi: + + /* We return the result of the mutex_lock operation. */ + ret + + /* Initial locking failed. */ +1: +.LSbl1: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + + /* Unlock in loop requires waekup. */ +3: +.LSbl2: +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 4b + + /* Locking in loop failed. */ +5: +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 6b + + /* Unlock after loop requires wakeup. */ +10: +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + + /* The initial unlocking of the mutex failed. */ +12: +.LSbl3: + LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + jne 14b + + movl %eax, %esi +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + + movl %esi, %eax + jmp 14b + .size __pthread_cond_wait, .-__pthread_cond_wait +versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, + GLIBC_2_3_2) + + + .type __condvar_w_cleanup2, @function +__condvar_w_cleanup2: + subl $cond_futex, %ebx + .size __condvar_w_cleanup2, .-__condvar_w_cleanup2 +.LSbl4: + .type __condvar_w_cleanup, @function +__condvar_w_cleanup: + movl %eax, %esi + + /* Get internal lock. */ + movl $1, %edx + xorl %eax, %eax + LOCK +#if cond_lock == 0 + cmpxchgl %edx, (%ebx) +#else + cmpxchgl %edx, cond_lock(%ebx) +#endif + jz 1f + +#if cond_lock == 0 + movl %ebx, %ecx +#else + leal cond_lock(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + +1: movl broadcast_seq(%ebx), %eax + cmpl 12(%esp), %eax + jne 3f + + addl $1, wakeup_seq(%ebx) + adcl $0, wakeup_seq+4(%ebx) + + addl $1, cond_futex(%ebx) + + addl $1, woken_seq(%ebx) + adcl $0, woken_seq+4(%ebx) + +3: subl $(1 << clock_bits), cond_nwaiters(%ebx) + + /* Wake up a thread which wants to destroy the condvar object. */ + xorl %edi, %edi + movl total_seq(%ebx), %eax + andl total_seq+4(%ebx), %eax + cmpl $0xffffffff, %eax + jne 4f + movl cond_nwaiters(%ebx), %eax + andl $~((1 << clock_bits) - 1), %eax + jne 4f + + addl $cond_nwaiters, %ebx + movl $SYS_futex, %eax + movl $FUTEX_WAKE, %ecx + movl $1, %edx + ENTER_KERNEL + subl $cond_nwaiters, %ebx + movl $1, %edi + +4: LOCK +#if cond_lock == 0 + subl $1, (%ebx) +#else + subl $1, cond_lock(%ebx) +#endif + je 2f + +#if cond_lock == 0 + movl %ebx, %eax +#else + leal cond_lock(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + + /* Wake up all waiters to make sure no signal gets lost. */ +2: testl %edi, %edi + jnz 5f + addl $cond_futex, %ebx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + movl $0x7fffffff, %edx + ENTER_KERNEL + +5: movl 20+FRAME_SIZE(%esp), %eax + call __pthread_mutex_cond_lock + + movl %esi, (%esp) +.LcallUR: + call _Unwind_Resume + hlt +.LENDCODE: + .size __condvar_w_cleanup, .-__condvar_w_cleanup + + + .section .gcc_except_table,"a",@progbits +.LexceptSTART: + .byte 0xff # @LPStart format (omit) + .byte 0xff # @TType format (omit) + .byte 0x0b # call-site format + # DW_EH_PE_sdata4 + .uleb128 .Lcstend-.Lcstbegin +.Lcstbegin: + .long .LcleanupSTART-.LSTARTCODE + .long .Ladd_cond_futex-.LcleanupSTART + .long __condvar_w_cleanup-.LSTARTCODE + .uleb128 0 + .long .Ladd_cond_futex-.LSTARTCODE + .long .Lsub_cond_futex-.Ladd_cond_futex + .long __condvar_w_cleanup2-.LSTARTCODE + .uleb128 0 + .long .Lsub_cond_futex-.LSTARTCODE + .long .LcleanupEND-.Lsub_cond_futex + .long __condvar_w_cleanup-.LSTARTCODE + .uleb128 0 + .long .LcallUR-.LSTARTCODE + .long .LENDCODE-.LcallUR + .long 0 + .uleb128 0 +.Lcstend: + + .section .eh_frame,"a",@progbits +.LSTARTFRAME: + .long L(ENDCIE)-L(STARTCIE) # Length of the CIE. +.LSTARTCIE: + .long 0 # CIE ID. + .byte 1 # Version number. +#ifdef SHARED + .string "zPLR" # NUL-terminated augmentation + # string. +#else + .string "zPL" # NUL-terminated augmentation + # string. +#endif + .uleb128 1 # Code alignment factor. + .sleb128 -4 # Data alignment factor. + .byte 8 # Return address register + # column. +#ifdef SHARED + .uleb128 7 # Augmentation value length. + .byte 0x9b # Personality: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4 + # + DW_EH_PE_indirect + .long DW.ref.__gcc_personality_v0-. + .byte 0x1b # LSDA Encoding: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4. + .byte 0x1b # FDE Encoding: DW_EH_PE_pcrel + # + DW_EH_PE_sdata4. +#else + .uleb128 6 # Augmentation value length. + .byte 0x0 # Personality: absolute + .long __gcc_personality_v0 + .byte 0x0 # LSDA Encoding: absolute +#endif + .byte 0x0c # DW_CFA_def_cfa + .uleb128 4 + .uleb128 4 + .byte 0x88 # DW_CFA_offset, column 0x8 + .uleb128 1 + .align 4 +.LENDCIE: + + .long .LENDFDE-.LSTARTFDE # Length of the FDE. +.LSTARTFDE: + .long .LSTARTFDE-.LSTARTFRAME # CIE pointer. +#ifdef SHARED + .long .LSTARTCODE-. # PC-relative start address + # of the code. +#else + .long .LSTARTCODE # Start address of the code. +#endif + .long .LENDCODE-.LSTARTCODE # Length of the code. + .uleb128 4 # Augmentation size +#ifdef SHARED + .long .LexceptSTART-. +#else + .long .LexceptSTART +#endif + .byte 0x40+.Lpush_edi-.LSTARTCODE # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 8 + .byte 0x87 # DW_CFA_offset %edi + .uleb128 2 + .byte 0x40+.Lpush_esi-.Lpush_edi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 12 + .byte 0x86 # DW_CFA_offset %esi + .uleb128 3 + .byte 0x40+.Lpush_ebx-.Lpush_esi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0x83 # DW_CFA_offset %ebx + .uleb128 4 + .byte 2 # DW_CFA_advance_loc1 + .byte .Lsubl-.Lpush_ebx + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16+FRAME_SIZE + .byte 2 # DW_CFA_advance_loc1 + .byte .Laddl-.Lsubl + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0x40+ .Lpop_ebx-.Laddl # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 12 + .byte 0xc3 # DW_CFA_restore %ebx + .byte 0x40+.Lpop_esi-.Lpop_ebx # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 8 + .byte 0xc6 # DW_CFA_restore %esi + .byte 0x40+.Lpop_edi-.Lpop_esi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 4 + .byte 0xc7 # DW_CFA_restore %edi + .byte 0x40+.LSbl1-.Lpop_edi # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0x87 # DW_CFA_offset %edi + .uleb128 2 + .byte 0x86 # DW_CFA_offset %esi + .uleb128 3 + .byte 0x83 # DW_CFA_offset %ebx + .uleb128 4 + .byte 0x40+.LSbl2-.LSbl1 # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16+FRAME_SIZE + .byte 0x40+.LSbl3-.LSbl2 # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16 + .byte 0x40+.LSbl4-.LSbl3 # DW_CFA_advance_loc+N + .byte 14 # DW_CFA_def_cfa_offset + .uleb128 16+FRAME_SIZE + .align 4 +.LENDFDE: + + +#ifdef PIC + .section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits + .globl __i686.get_pc_thunk.cx + .hidden __i686.get_pc_thunk.cx + .type __i686.get_pc_thunk.cx,@function +__i686.get_pc_thunk.cx: + movl (%esp), %ecx; + ret + .size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx +#endif + +#ifdef SHARED + .hidden DW.ref.__gcc_personality_v0 + .weak DW.ref.__gcc_personality_v0 + .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits + .align 4 + .type DW.ref.__gcc_personality_v0, @object + .size DW.ref.__gcc_personality_v0, 4 +DW.ref.__gcc_personality_v0: + .long __gcc_personality_v0 +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S new file mode 100644 index 000000000..db0639d21 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S @@ -0,0 +1,175 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelrwlock.h> +#include <pthread-errnos.h> + + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl __pthread_rwlock_rdlock + .type __pthread_rwlock_rdlock,@function + .align 16 +__pthread_rwlock_rdlock: + pushl %esi + pushl %ebx + + xorl %esi, %esi + movl 12(%esp), %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 + cmpl $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: addl $READERS_WAKEUP, %ebx + movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */ + 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 %ecx, %ecx + 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 %ecx, %eax + popl %ebx + popl %esi + ret + +1: +#if MUTEX == 0 + movl %ebx, %ecx +#else + leal MUTEX(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + +14: cmpl %gs:TID, %eax + jne 3b + /* Deadlock detected. */ + movl $EDEADLK, %ecx + jmp 9b + +6: +#if MUTEX == 0 + movl %ebx, %eax +#else + leal MUTEX(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 7b + + /* Overflow. */ +8: subl $1, NR_READERS(%ebx) + movl $EAGAIN, %ecx + jmp 9b + + /* Overflow. */ +4: subl $1, READERS_QUEUED(%ebx) + movl $EAGAIN, %ecx + jmp 9b + +10: +#if MUTEX == 0 + movl %ebx, %eax +#else + leal MUTEX(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + +12: +#if MUTEX == 0 + movl %ebx, %ecx +#else + leal MUTEX(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 13b + .size __pthread_rwlock_rdlock,.-__pthread_rwlock_rdlock + + .globl pthread_rwlock_rdlock +pthread_rwlock_rdlock = __pthread_rwlock_rdlock + + .globl __pthread_rwlock_rdlock_internal +__pthread_rwlock_rdlock_internal = __pthread_rwlock_rdlock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S new file mode 100644 index 000000000..eb5665b43 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S @@ -0,0 +1,215 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelrwlock.h> +#include <pthread-errnos.h> + + +#define SYS_gettimeofday __NR_gettimeofday +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl pthread_rwlock_timedrdlock + .type pthread_rwlock_timedrdlock,@function + .align 16 +pthread_rwlock_timedrdlock: + pushl %esi + pushl %edi + pushl %ebx + pushl %ebp + subl $8, %esp + + 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 + cmpl $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 $SYS_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 + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl %esp, %esi + leal READERS_WAKEUP(%ebp), %ebx + movl $SYS_futex, %eax + ENTER_KERNEL + movl %eax, %ecx +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, %ecx + jne 2b + +18: movl $ETIMEDOUT, %ecx + jmp 9f + + +5: xorl %ecx, %ecx + 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 %ecx, %eax + + addl $8, %esp + popl %ebp + popl %ebx + popl %edi + popl %esi + ret + +1: +#if MUTEX == 0 + movl %ebp, %ecx +#else + leal MUTEX(%ebp), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + +14: cmpl %gs:TID, %eax + jne 3b + movl $EDEADLK, %ecx + jmp 9b + +6: +#if MUTEX == 0 + movl %ebp, %eax +#else + leal MUTEX(%ebp), %eax +#endif + call __lll_mutex_unlock_wake + jmp 7b + + /* Overflow. */ +8: subl $1, NR_READERS(%ebp) + movl $EAGAIN, %ecx + jmp 9b + + /* Overflow. */ +4: subl $1, READERS_QUEUED(%ebp) + movl $EAGAIN, %ecx + jmp 9b + +10: +#if MUTEX == 0 + movl %ebp, %eax +#else + leal MUTEX(%ebp), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + +12: +#if MUTEX == 0 + movl %ebp, %ecx +#else + leal MUTEX(%ebp), %ecx +#endif + call __lll_mutex_lock_wait + jmp 13b + +16: movl $-ETIMEDOUT, %ecx + jmp 17b + +19: movl $EINVAL, %ecx + jmp 9b + .size pthread_rwlock_timedrdlock,.-pthread_rwlock_timedrdlock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S new file mode 100644 index 000000000..d9db77ba0 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S @@ -0,0 +1,208 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelrwlock.h> +#include <pthread-errnos.h> + + +#define SYS_gettimeofday __NR_gettimeofday +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl pthread_rwlock_timedwrlock + .type pthread_rwlock_timedwrlock,@function + .align 16 +pthread_rwlock_timedwrlock: + pushl %esi + pushl %edi + pushl %ebx + pushl %ebp + subl $8, %esp + + 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 $SYS_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 + xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl %esp, %esi + leal WRITERS_WAKEUP(%ebp), %ebx + movl $SYS_futex, %eax + ENTER_KERNEL + movl %eax, %ecx +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, %ecx + jne 2b + +18: movl $ETIMEDOUT, %ecx + jmp 9f + + +5: xorl %ecx, %ecx + 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 %ecx, %eax + + addl $8, %esp + popl %ebp + popl %ebx + popl %edi + popl %esi + ret + +1: +#if MUTEX == 0 + movl %ebp, %ecx +#else + leal MUTEX(%ebp), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + +14: cmpl %gs:TID, %eax + jne 3b +20: movl $EDEADLK, %ecx + jmp 9b + +6: +#if MUTEX == 0 + movl %ebp, %eax +#else + leal MUTEX(%ebp), %eax +#endif + call __lll_mutex_unlock_wake + jmp 7b + + /* Overflow. */ +4: subl $1, WRITERS_QUEUED(%ebp) + movl $EAGAIN, %ecx + jmp 9b + +10: +#if MUTEX == 0 + movl %ebp, %eax +#else + leal MUTEX(%ebp), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + +12: +#if MUTEX == 0 + movl %ebp, %ecx +#else + leal MUTEX(%ebp), %ecx +#endif + call __lll_mutex_lock_wait + jmp 13b + +16: movl $-ETIMEDOUT, %ecx + jmp 17b + +19: movl $EINVAL, %ecx + jmp 9b + .size pthread_rwlock_timedwrlock,.-pthread_rwlock_timedwrlock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S new file mode 100644 index 000000000..64aac3255 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S @@ -0,0 +1,141 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelrwlock.h> + + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl __pthread_rwlock_unlock + .type __pthread_rwlock_unlock,@function + .align 16 +__pthread_rwlock_unlock: + pushl %ebx + pushl %edi + + 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, %ecx + leal WRITERS_WAKEUP(%edi), %ebx + movl %ecx, %edx + 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: movl $SYS_futex, %eax + ENTER_KERNEL + + xorl %eax, %eax + popl %edi + popl %ebx + ret + + .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, %ecx +#else + leal MUTEX(%edx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + +3: +#if MUTEX == 0 + movl %edi, %eax +#else + leal MUTEX(%edx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 4b + +7: +#if MUTEX == 0 + movl %edi, %eax +#else + leal MUTEX(%edx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 8b + + .size __pthread_rwlock_unlock,.-__pthread_rwlock_unlock + + .globl pthread_rwlock_unlock +pthread_rwlock_unlock = __pthread_rwlock_unlock + + .globl __pthread_rwlock_unlock_internal +__pthread_rwlock_unlock_internal = __pthread_rwlock_unlock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S new file mode 100644 index 000000000..ea9cc170d --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S @@ -0,0 +1,166 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <lowlevelrwlock.h> +#include <pthread-errnos.h> + + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + + + .text + + .globl __pthread_rwlock_wrlock + .type __pthread_rwlock_wrlock,@function + .align 16 +__pthread_rwlock_wrlock: + pushl %esi + pushl %ebx + + xorl %esi, %esi + movl 12(%esp), %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: addl $WRITERS_WAKEUP, %ebx + movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */ + 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 %ecx, %ecx + 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 %ecx, %eax + popl %ebx + popl %esi + ret + +1: +#if MUTEX == 0 + movl %ebx, %ecx +#else + leal MUTEX(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 2b + +14: cmpl %gs:TID , %eax + jne 3b + movl $EDEADLK, %ecx + jmp 9b + +6: +#if MUTEX == 0 + movl %ebx, %eax +#else + leal MUTEX(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 7b + +4: subl $1, WRITERS_QUEUED(%ebx) + movl $EAGAIN, %ecx + jmp 9b + +10: +#if MUTEX == 0 + movl %ebx, %eax +#else + leal MUTEX(%ebx), %eax +#endif + call __lll_mutex_unlock_wake + jmp 11b + +12: +#if MUTEX == 0 + movl %ebx, %ecx +#else + leal MUTEX(%ebx), %ecx +#endif + call __lll_mutex_lock_wait + jmp 13b + .size __pthread_rwlock_wrlock,.-__pthread_rwlock_wrlock + + .globl pthread_rwlock_wrlock +pthread_rwlock_wrlock = __pthread_rwlock_wrlock + + .globl __pthread_rwlock_wrlock_internal +__pthread_rwlock_wrlock_internal = __pthread_rwlock_wrlock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S new file mode 100644 index 000000000..71e96d222 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S @@ -0,0 +1,102 @@ +/* Copyright (C) 2002, 2003, 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <pthread-errnos.h> + +#ifndef UP +# define LOCK lock +#else +# define +#endif + +#define SYS_futex 240 +#define FUTEX_WAKE 1 + + + .text + + .globl __new_sem_post + .type __new_sem_post,@function + .align 16 +__new_sem_post: + pushl %ebx + + movl 8(%esp), %ebx + movl $1, %edx + LOCK + xaddl %edx, (%ebx) + + movl $SYS_futex, %eax + movl $FUTEX_WAKE, %ecx + addl $1, %edx + ENTER_KERNEL + + testl %eax, %eax + js 1f + + xorl %eax, %eax + popl %ebx + ret + +1: +#ifdef PIC + call __i686.get_pc_thunk.bx +#else + movl $4f, %ebx +4: +#endif + addl $_GLOBAL_OFFSET_TABLE_, %ebx +#if USE___THREAD +# ifdef NO_TLS_DIRECT_SEG_REFS + movl errno@gotntpoff(%ebx), %edx + addl %gs:0, %edx + movl $EINVAL, (%edx) +# else + movl errno@gotntpoff(%ebx), %edx + movl $EINVAL, %gs:(%edx) +# endif +#else + call __errno_location@plt + movl $EINVAL, (%eax) +#endif + + orl $-1, %eax + popl %ebx + ret + .size __new_sem_post,.-__new_sem_post + versioned_symbol(libpthread, __new_sem_post, sem_post, GLIBC_2_1) +#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) + .global __old_sem_post +__old_sem_post = __new_sem_post + compat_symbol(libpthread, __old_sem_post, sem_post, GLIBC_2_0) +#endif + + +#ifdef PIC + .section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits + .globl __i686.get_pc_thunk.bx + .hidden __i686.get_pc_thunk.bx + .type __i686.get_pc_thunk.bx,@function +__i686.get_pc_thunk.bx: + movl (%esp), %ebx; + ret + .size __i686.get_pc_thunk.bx,.-__i686.get_pc_thunk.bx +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S new file mode 100644 index 000000000..318b53a87 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S @@ -0,0 +1,195 @@ +/* Copyright (C) 2002, 2003, 2004, 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <pthread-errnos.h> + +#ifndef UP +# define LOCK lock +#else +# define +#endif + +#define SYS_gettimeofday __NR_gettimeofday +#define SYS_futex 240 +#define FUTEX_WAKE 1 + + + .text + + .globl sem_timedwait + .type sem_timedwait,@function + .align 16 + cfi_startproc +sem_timedwait: + /* First check for cancellation. */ + movl %gs:CANCELHANDLING, %eax + andl $0xfffffff9, %eax + cmpl $8, %eax + je 10f + + movl 4(%esp), %ecx + + movl (%ecx), %eax +2: testl %eax, %eax + je,pn 1f + + leal -1(%eax), %edx + LOCK + cmpxchgl %edx, (%ecx) + jne,pn 2b + + xorl %eax, %eax + ret + + /* Check whether the timeout value is valid. */ +1: pushl %esi + cfi_adjust_cfa_offset(4) + pushl %edi + cfi_adjust_cfa_offset(4) + pushl %ebx + cfi_adjust_cfa_offset(4) + subl $12, %esp + cfi_adjust_cfa_offset(12) + + movl 32(%esp), %edi + cfi_offset(7, -12) /* %edi */ + + /* Check for invalid nanosecond field. */ + cmpl $1000000000, 4(%edi) + movl $EINVAL, %esi + cfi_offset(6, -8) /* %esi */ + jae 6f + + cfi_offset(3, -16) /* %ebx */ +7: call __pthread_enable_asynccancel + movl %eax, 8(%esp) + + xorl %ecx, %ecx + movl %esp, %ebx + movl %ecx, %edx + movl $SYS_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 5f + addl $1000000000, %edx + subl $1, %ecx +5: testl %ecx, %ecx + movl $ETIMEDOUT, %esi + js 6f /* Time is already up. */ + + movl %ecx, (%esp) /* Store relative timeout. */ + movl %edx, 4(%esp) + movl 28(%esp), %ebx + xorl %ecx, %ecx + movl %esp, %esi + movl $SYS_futex, %eax + xorl %edx, %edx + ENTER_KERNEL + movl %eax, %esi + + movl 8(%esp), %eax + call __pthread_disable_asynccancel + + testl %esi, %esi + je,pt 9f + cmpl $-EWOULDBLOCK, %esi + jne 3f + +9: movl (%ebx), %eax +8: testl %eax, %eax + je 7b + + leal -1(%eax), %ecx + LOCK + cmpxchgl %ecx, (%ebx) + jne,pn 8b + + addl $12, %esp + cfi_adjust_cfa_offset(-12) + xorl %eax, %eax + popl %ebx + cfi_adjust_cfa_offset(-4) + cfi_restore(3) + popl %edi + cfi_adjust_cfa_offset(-4) + cfi_restore(7) + popl %esi + cfi_adjust_cfa_offset(-4) + cfi_restore(6) + ret + + cfi_adjust_cfa_offset(24) + cfi_offset(6, -8) /* %esi */ + cfi_offset(7, -12) /* %edi */ + cfi_offset(3, -16) /* %ebx */ +3: negl %esi +6: +#ifdef PIC + call __i686.get_pc_thunk.bx +#else + movl $4f, %ebx +4: +#endif + addl $_GLOBAL_OFFSET_TABLE_, %ebx +#if USE___THREAD +# ifdef NO_TLS_DIRECT_SEG_REFS + movl errno@gotntpoff(%ebx), %edx + addl %gs:0, %edx + movl %esi, (%edx) +# else + movl errno@gotntpoff(%ebx), %edx + movl %esi, %gs:(%edx) +# endif +#else + call __errno_location@plt + movl %esi, (%eax) +#endif + + addl $12, %esp + cfi_adjust_cfa_offset(-12) + orl $-1, %eax + popl %ebx + cfi_adjust_cfa_offset(-4) + cfi_restore(3) + popl %edi + cfi_adjust_cfa_offset(-4) + cfi_restore(7) + popl %esi + cfi_adjust_cfa_offset(-4) + cfi_restore(6) + ret + +10: /* Canceled. */ + movl $0xffffffff, %gs:RESULT + LOCK + orl $0x10, %gs:CANCELHANDLING + movl %gs:CLEANUP_JMP_BUF, %eax + jmp HIDDEN_JUMPTARGET (__pthread_unwind) + cfi_endproc + .size sem_timedwait,.-sem_timedwait diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S new file mode 100644 index 000000000..d36a1088f --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S @@ -0,0 +1,90 @@ +/* Copyright (C) 2002, 2003, 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <pthread-errnos.h> + +#ifndef UP +# define LOCK lock +#else +# define +#endif + + .text + + .globl __new_sem_trywait + .type __new_sem_trywait,@function + .align 16 +__new_sem_trywait: + movl 4(%esp), %ecx + + movl (%ecx), %eax +2: testl %eax, %eax + jz 1f + + leal -1(%eax), %edx + LOCK + cmpxchgl %edx, (%ecx) + jne,pn 2b + xorl %eax, %eax + ret + +1: +#ifdef PIC + call __i686.get_pc_thunk.cx +#else + movl $3f, %ecx +3: +#endif + addl $_GLOBAL_OFFSET_TABLE_, %ecx +#if USE___THREAD +# ifdef NO_TLS_DIRECT_SEG_REFS + movl errno@gotntpoff(%ecx), %edx + addl %gs:0, %edx + movl $EAGAIN, (%edx) +# else + movl errno@gotntpoff(%ecx), %edx + movl $EAGAIN, %gs:(%edx) +# endif +#else + call __errno_location@plt + movl $EAGAIN, (%eax) +#endif + orl $-1, %eax + ret + .size __new_sem_trywait,.-__new_sem_trywait + versioned_symbol(libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1) +#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) + .global __old_sem_trywait +__old_sem_trywait = __new_sem_trywait + compat_symbol(libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0) +#endif + + +#ifdef PIC + .section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits + .globl __i686.get_pc_thunk.cx + .hidden __i686.get_pc_thunk.cx + .type __i686.get_pc_thunk.cx,@function +__i686.get_pc_thunk.cx: + movl (%esp), %ecx; + ret + .size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S new file mode 100644 index 000000000..1605b69b6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S @@ -0,0 +1,139 @@ +/* Copyright (C) 2002, 2003, 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <shlib-compat.h> +#include <pthread-errnos.h> + +#ifndef UP +# define LOCK lock +#else +# define +#endif + +#define SYS_futex 240 +#define FUTEX_WAKE 1 + + + .text + + .globl __new_sem_wait + .type __new_sem_wait,@function + .align 16 + cfi_startproc +__new_sem_wait: + /* First check for cancellation. */ + movl %gs:CANCELHANDLING, %eax + andl $0xfffffff9, %eax + cmpl $8, %eax + je 5f + + pushl %ebx + cfi_adjust_cfa_offset(4) + pushl %esi + cfi_adjust_cfa_offset(4) + subl $4, %esp + cfi_adjust_cfa_offset(4) + + movl 16(%esp), %ebx + cfi_offset(3, -8) /* %ebx */ + + cfi_offset(6, -12) /* %esi */ +3: movl (%ebx), %eax +2: testl %eax, %eax + je,pn 1f + + leal -1(%eax), %edx + LOCK + cmpxchgl %edx, (%ebx) + jne,pn 2b + xorl %eax, %eax + + movl 4(%esp), %esi + cfi_restore(6) + movl 8(%esp), %ebx + cfi_restore(3) + addl $12, %esp + cfi_adjust_cfa_offset(-12) + ret + + cfi_adjust_cfa_offset(8) + cfi_offset(3, -8) /* %ebx */ + cfi_offset(6, -12) /* %esi */ +1: call __pthread_enable_asynccancel + movl %eax, (%esp) + + xorl %esi, %esi + movl $SYS_futex, %eax + movl %esi, %ecx + movl %esi, %edx + ENTER_KERNEL + movl %eax, %esi + + movl (%esp), %eax + call __pthread_disable_asynccancel + + testl %esi, %esi + je 3b + cmpl $-EWOULDBLOCK, %esi + je 3b + negl %esi +#ifdef PIC + call __i686.get_pc_thunk.bx +#else + movl $4f, %ebx +4: +#endif + addl $_GLOBAL_OFFSET_TABLE_, %ebx +#if USE___THREAD +# ifdef NO_TLS_DIRECT_SEG_REFS + movl errno@gotntpoff(%ebx), %edx + addl %gs:0, %edx + movl %esi, (%edx) +# else + movl errno@gotntpoff(%ebx), %edx + movl %esi, %gs:(%edx) +# endif +#else + call __errno_location@plt + movl %esi, (%eax) +#endif + orl $-1, %eax + movl 4(%esp), %esi + cfi_restore(6) + movl 8(%esp), %ebx + cfi_restore(3) + addl $12, %esp + cfi_adjust_cfa_offset(-12) + ret + +5: /* Canceled. */ + movl $0xffffffff, %gs:RESULT + LOCK + orl $0x10, %gs:CANCELHANDLING + movl %gs:CLEANUP_JMP_BUF, %eax + jmp HIDDEN_JUMPTARGET (__pthread_unwind) + cfi_endproc + .size __new_sem_wait,.-__new_sem_wait + versioned_symbol(libpthread, __new_sem_wait, sem_wait, GLIBC_2_1) +#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1) + .global __old_sem_wait +__old_sem_wait = __new_sem_wait + compat_symbol(libpthread, __old_sem_wait, sem_wait, GLIBC_2_0) +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevellock.S new file mode 100644 index 000000000..f567c1d6d --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/libc-lowlevellock.S @@ -0,0 +1 @@ +#include "../i486/libc-lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevellock.S new file mode 100644 index 000000000..e60dea89e --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/lowlevellock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_barrier_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_barrier_wait.S new file mode 100644 index 000000000..6d20b9a95 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_barrier_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_barrier_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_broadcast.S new file mode 100644 index 000000000..5e1024eab --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_broadcast.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_broadcast.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_signal.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_signal.S new file mode 100644 index 000000000..da4e8cbab --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_signal.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_signal.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_timedwait.S new file mode 100644 index 000000000..c0131555b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_timedwait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_timedwait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_wait.S new file mode 100644 index 000000000..9b57fbaca --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_cond_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S new file mode 100644 index 000000000..da2bc4704 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_rdlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_rdlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S new file mode 100644 index 000000000..0f2ec168b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedrdlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_timedrdlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S new file mode 100644 index 000000000..26501590a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_timedwrlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_timedwrlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S new file mode 100644 index 000000000..5515e4895 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_unlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_unlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S new file mode 100644 index 000000000..04ac275f6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/pthread_rwlock_wrlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_wrlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_post.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_post.S new file mode 100644 index 000000000..7317e1582 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_post.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_post.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_timedwait.S new file mode 100644 index 000000000..f34539d56 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_timedwait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_timedwait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_trywait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_trywait.S new file mode 100644 index 000000000..64145c2e3 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_trywait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_trywait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_wait.S new file mode 100644 index 000000000..b3d462125 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i586/sem_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h new file mode 100644 index 000000000..b7771318a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/dl-sysdep.h @@ -0,0 +1,61 @@ +/* System-specific settings for dynamic linker code. IA-32 version. + Copyright (C) 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _DL_SYSDEP_H +#define _DL_SYSDEP_H 1 + +/* This macro must be defined to either 0 or 1. + + If 1, then an errno global variable hidden in ld.so will work right with + all the errno-using libc code compiled for ld.so, and there is never a + need to share the errno location with libc. This is appropriate only if + all the libc functions that ld.so uses are called without PLT and always + get the versions linked into ld.so rather than the libc ones. */ + +#ifdef IS_IN_rtld +# define RTLD_PRIVATE_ERRNO 1 +#else +# define RTLD_PRIVATE_ERRNO 0 +#endif + +/* Traditionally system calls have been made using int $0x80. A + second method was introduced which, if possible, will use the + sysenter/syscall instructions. To signal the presence and where to + find the code the kernel passes an AT_SYSINFO value in the + auxiliary vector to the application. */ +#define NEED_DL_SYSINFO 1 +#define USE_DL_SYSINFO 1 + +#if defined NEED_DL_SYSINFO && !defined __ASSEMBLER__ +extern void _dl_sysinfo_int80 (void) attribute_hidden; +# define DL_SYSINFO_DEFAULT (uintptr_t) _dl_sysinfo_int80 +# define DL_SYSINFO_IMPLEMENTATION \ + asm (".text\n\t" \ + ".type _dl_sysinfo_int80,@function\n\t" \ + ".hidden _dl_sysinfo_int80\n" \ + CFI_STARTPROC "\n" \ + "_dl_sysinfo_int80:\n\t" \ + "int $0x80;\n\t" \ + "ret;\n\t" \ + CFI_ENDPROC "\n" \ + ".size _dl_sysinfo_int80,.-_dl_sysinfo_int80\n\t" \ + ".previous"); +#endif + +#endif /* dl-sysdep.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevellock.S new file mode 100644 index 000000000..f567c1d6d --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/libc-lowlevellock.S @@ -0,0 +1 @@ +#include "../i486/libc-lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevellock.S new file mode 100644 index 000000000..e60dea89e --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/lowlevellock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/lowlevellock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_barrier_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_barrier_wait.S new file mode 100644 index 000000000..6d20b9a95 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_barrier_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_barrier_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_broadcast.S new file mode 100644 index 000000000..5e1024eab --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_broadcast.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_broadcast.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_signal.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_signal.S new file mode 100644 index 000000000..da4e8cbab --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_signal.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_signal.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_timedwait.S new file mode 100644 index 000000000..07d481f37 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_timedwait.S @@ -0,0 +1,21 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define HAVE_CMOV 1 +#include "../i486/pthread_cond_timedwait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_wait.S new file mode 100644 index 000000000..9b57fbaca --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_cond_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_cond_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S new file mode 100644 index 000000000..da2bc4704 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_rdlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_rdlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S new file mode 100644 index 000000000..0f2ec168b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedrdlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_timedrdlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S new file mode 100644 index 000000000..26501590a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_timedwrlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_timedwrlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S new file mode 100644 index 000000000..0894f0546 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_unlock.S @@ -0,0 +1,21 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define HAVE_CMOV 1 +#include "../i486/pthread_rwlock_unlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S new file mode 100644 index 000000000..04ac275f6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/pthread_rwlock_wrlock.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/pthread_rwlock_wrlock.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_post.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_post.S new file mode 100644 index 000000000..7317e1582 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_post.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_post.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_timedwait.S new file mode 100644 index 000000000..f34539d56 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_timedwait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_timedwait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_trywait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_trywait.S new file mode 100644 index 000000000..64145c2e3 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_trywait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_trywait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_wait.S new file mode 100644 index 000000000..b3d462125 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i686/sem_wait.S @@ -0,0 +1,20 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "../i486/sem_wait.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h new file mode 100644 index 000000000..b86f11c9b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h @@ -0,0 +1,374 @@ +/* Copyright (C) 2002, 2003, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _LOWLEVELLOCK_H +#define _LOWLEVELLOCK_H 1 + +#include <time.h> +#include <sys/param.h> +#include <bits/pthreadtypes.h> + +#ifndef LOCK_INSTR +# ifdef UP +# define LOCK_INSTR /* nothing */ +# else +# define LOCK_INSTR "lock;" +# endif +#endif + +#define SYS_futex 240 +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 + + +/* Initializer for compatibility lock. */ +#define LLL_MUTEX_LOCK_INITIALIZER (0) +#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED (1) +#define LLL_MUTEX_LOCK_INITIALIZER_WAITERS (2) + + +#ifdef PIC +# define LLL_EBX_LOAD "xchgl %2, %%ebx\n" +# define LLL_EBX_REG "D" +#else +# define LLL_EBX_LOAD +# define LLL_EBX_REG "b" +#endif + +#ifdef I386_USE_SYSENTER +# ifdef SHARED +# define LLL_ENTER_KERNEL "call *%%gs:%P6\n\t" +# else +# define LLL_ENTER_KERNEL "call *_dl_sysinfo\n\t" +# endif +#else +# define LLL_ENTER_KERNEL "int $0x80\n\t" +#endif + +/* Delay in spinlock loop. */ +#define BUSY_WAIT_NOP asm ("rep; nop") + + +#define lll_futex_wait(futex, val) \ + do { \ + int __ignore; \ + register __typeof (val) _val asm ("edx") = (val); \ + __asm __volatile (LLL_EBX_LOAD \ + LLL_ENTER_KERNEL \ + LLL_EBX_LOAD \ + : "=a" (__ignore) \ + : "0" (SYS_futex), LLL_EBX_REG (futex), "S" (0), \ + "c" (FUTEX_WAIT), "d" (_val), \ + "i" (offsetof (tcbhead_t, sysinfo))); \ + } while (0) + + +#define lll_futex_wake(futex, nr) \ + do { \ + int __ignore; \ + register __typeof (nr) _nr asm ("edx") = (nr); \ + __asm __volatile (LLL_EBX_LOAD \ + LLL_ENTER_KERNEL \ + LLL_EBX_LOAD \ + : "=a" (__ignore) \ + : "0" (SYS_futex), LLL_EBX_REG (futex), \ + "c" (FUTEX_WAKE), "d" (_nr), \ + "i" (0) /* phony, to align next arg's number */, \ + "i" (offsetof (tcbhead_t, sysinfo))); \ + } while (0) + + +/* Does not preserve %eax and %ecx. */ +extern int __lll_mutex_lock_wait (int val, int *__futex) + __attribute ((regparm (2))) attribute_hidden; +/* Does not preserve %eax, %ecx, and %edx. */ +extern int __lll_mutex_timedlock_wait (int val, int *__futex, + const struct timespec *abstime) + __attribute ((regparm (3))) attribute_hidden; +/* Preserves all registers but %eax. */ +extern int __lll_mutex_unlock_wake (int *__futex) + __attribute ((regparm (1))) attribute_hidden; + + +/* NB: in the lll_mutex_trylock macro we simply return the value in %eax + after the cmpxchg instruction. In case the operation succeded this + value is zero. In case the operation failed, the cmpxchg instruction + has loaded the current value of the memory work which is guaranteed + to be nonzero. */ +#define lll_mutex_trylock(futex) \ + ({ int ret; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + : "=a" (ret), "=m" (futex) \ + : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ + "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "memory"); \ + ret; }) + + +#define lll_mutex_cond_trylock(futex) \ + ({ int ret; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + : "=a" (ret), "=m" (futex) \ + : "r" (LLL_MUTEX_LOCK_INITIALIZER_WAITERS), \ + "m" (futex), "0" (LLL_MUTEX_LOCK_INITIALIZER) \ + : "memory"); \ + ret; }) + + +#define lll_mutex_lock(futex) \ + (void) ({ int ignore1, ignore2; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ + "jnz _L_mutex_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_lock_%=,@function\n" \ + "_L_mutex_lock_%=:\n\t" \ + "leal %2, %%ecx\n\t" \ + "call __lll_mutex_lock_wait\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_lock_%=,.-_L_mutex_lock_%=\n" \ + ".previous\n" \ + "1:" \ + : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ + : "0" (0), "1" (1), "m" (futex) \ + : "memory"); }) + + +/* Special version of lll_mutex_lock which causes the unlock function to + always wakeup waiters. */ +#define lll_mutex_cond_lock(futex) \ + (void) ({ int ignore1, ignore2; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ + "jnz _L_mutex_cond_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_cond_lock_%=,@function\n" \ + "_L_mutex_cond_lock_%=:\n\t" \ + "leal %2, %%ecx\n\t" \ + "call __lll_mutex_lock_wait\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_cond_lock_%=,.-_L_mutex_cond_lock_%=\n" \ + ".previous\n" \ + "1:" \ + : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ + : "0" (0), "1" (2), "m" (futex) \ + : "memory"); }) + + +#define lll_mutex_timedlock(futex, timeout) \ + ({ int result, ignore1, ignore2; \ + __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ + "jnz _L_mutex_timedlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_timedlock_%=,@function\n" \ + "_L_mutex_timedlock_%=:\n\t" \ + "leal %3, %%ecx\n\t" \ + "movl %7, %%edx\n\t" \ + "call __lll_mutex_timedlock_wait\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_timedlock_%=,.-_L_mutex_timedlock_%=\n"\ + ".previous\n" \ + "1:" \ + : "=a" (result), "=c" (ignore1), "=&d" (ignore2), \ + "=m" (futex) \ + : "0" (0), "1" (1), "m" (futex), "m" (timeout) \ + : "memory"); \ + result; }) + + +#define lll_mutex_unlock(futex) \ + (void) ({ int ignore; \ + __asm __volatile (LOCK_INSTR "subl $1,%0\n\t" \ + "jne _L_mutex_unlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_unlock_%=,@function\n" \ + "_L_mutex_unlock_%=:\n\t" \ + "leal %0, %%eax\n\t" \ + "call __lll_mutex_unlock_wake\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_unlock_%=,.-_L_mutex_unlock_%=\n" \ + ".previous\n" \ + "1:" \ + : "=m" (futex), "=&a" (ignore) \ + : "m" (futex) \ + : "memory"); }) + + +#define lll_mutex_islocked(futex) \ + (futex != 0) + + +/* We have a separate internal lock implementation which is not tied + to binary compatibility. */ + +/* Type for lock object. */ +typedef int lll_lock_t; + +/* Initializers for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) + + +extern int __lll_lock_wait (int val, int *__futex) + __attribute ((regparm (2))) attribute_hidden; +extern int __lll_unlock_wake (int *__futex) + __attribute ((regparm (1))) attribute_hidden; +extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; + + +/* The states of a lock are: + 0 - untaken + 1 - taken by one user + 2 - taken by more users */ + + +#if defined NOT_IN_libc || defined UP +# define lll_trylock(futex) lll_mutex_trylock (futex) +# define lll_lock(futex) lll_mutex_lock (futex) +# define lll_unlock(futex) lll_mutex_unlock (futex) +#else +/* Special versions of the macros for use in libc itself. They avoid + the lock prefix when the thread library is not used. + + XXX In future we might even want to avoid it on UP machines. */ +# include <tls.h> + +# define lll_trylock(futex) \ + ({ unsigned char ret; \ + __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \ + "je,pt 0f\n\t" \ + "lock\n" \ + "0:\tcmpxchgl %2, %1; setne %0" \ + : "=a" (ret), "=m" (futex) \ + : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ + "0" (LLL_MUTEX_LOCK_INITIALIZER), \ + "i" (offsetof (tcbhead_t, multiple_threads)) \ + : "memory"); \ + ret; }) + + +# define lll_lock(futex) \ + (void) ({ int ignore1, ignore2; \ + __asm __volatile ("cmpl $0, %%gs:%P6\n\t" \ + "je,pt 0f\n\t" \ + "lock\n" \ + "0:\tcmpxchgl %1, %2\n\t" \ + "jnz _L_mutex_lock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_lock_%=,@function\n" \ + "_L_mutex_lock_%=:\n\t" \ + "leal %2, %%ecx\n\t" \ + "call __lll_mutex_lock_wait\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_lock_%=,.-_L_mutex_lock_%=\n" \ + ".previous\n" \ + "1:" \ + : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ + : "0" (0), "1" (1), "m" (futex), \ + "i" (offsetof (tcbhead_t, multiple_threads)) \ + : "memory"); }) + + +# define lll_unlock(futex) \ + (void) ({ int ignore; \ + __asm __volatile ("cmpl $0, %%gs:%P3\n\t" \ + "je,pt 0f\n\t" \ + "lock\n" \ + "0:\tsubl $1,%0\n\t" \ + "jne _L_mutex_unlock_%=\n\t" \ + ".subsection 1\n\t" \ + ".type _L_mutex_unlock_%=,@function\n" \ + "_L_mutex_unlock_%=:\n\t" \ + "leal %0, %%eax\n\t" \ + "call __lll_mutex_unlock_wake\n\t" \ + "jmp 1f\n\t" \ + ".size _L_mutex_unlock_%=,.-_L_mutex_unlock_%=\n" \ + ".previous\n" \ + "1:" \ + : "=m" (futex), "=&a" (ignore) \ + : "m" (futex), \ + "i" (offsetof (tcbhead_t, multiple_threads)) \ + : "memory"); }) +#endif + + +#define lll_islocked(futex) \ + (futex != LLL_LOCK_INITIALIZER) + + +/* The kernel notifies a process with uses CLONE_CLEARTID via futex + wakeup when the clone terminates. The memory location contains the + thread ID while the clone is running and is reset to zero + afterwards. + + The macro parameter must not have any side effect. */ +#define lll_wait_tid(tid) \ + do { \ + int __ignore; \ + register __typeof (tid) _tid asm ("edx") = (tid); \ + if (_tid != 0) \ + __asm __volatile (LLL_EBX_LOAD \ + "1:\tmovl %1, %%eax\n\t" \ + LLL_ENTER_KERNEL \ + "cmpl $0, (%%ebx)\n\t" \ + "jne,pn 1b\n\t" \ + LLL_EBX_LOAD \ + : "=&a" (__ignore) \ + : "i" (SYS_futex), LLL_EBX_REG (&tid), "S" (0), \ + "c" (FUTEX_WAIT), "d" (_tid), \ + "i" (offsetof (tcbhead_t, sysinfo))); \ + } while (0) + +extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime) + __attribute__ ((regparm (2))) attribute_hidden; +#define lll_timedwait_tid(tid, abstime) \ + ({ \ + int __result = 0; \ + if (tid != 0) \ + { \ + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) \ + __result = EINVAL; \ + else \ + __result = __lll_timedwait_tid (&tid, abstime); \ + } \ + __result; }) + + +/* Conditional variable handling. */ + +extern void __lll_cond_wait (pthread_cond_t *cond) + __attribute ((regparm (1))) attribute_hidden; +extern int __lll_cond_timedwait (pthread_cond_t *cond, + const struct timespec *abstime) + __attribute ((regparm (2))) attribute_hidden; +extern void __lll_cond_wake (pthread_cond_t *cond) + __attribute ((regparm (1))) attribute_hidden; +extern void __lll_cond_broadcast (pthread_cond_t *cond) + __attribute ((regparm (1))) attribute_hidden; + + +#define lll_cond_wait(cond) \ + __lll_cond_wait (cond) +#define lll_cond_timedwait(cond, abstime) \ + __lll_cond_timedwait (cond, abstime) +#define lll_cond_wake(cond) \ + __lll_cond_wake (cond) +#define lll_cond_broadcast(cond) \ + __lll_cond_broadcast (cond) + + +#endif /* lowlevellock.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h new file mode 100644 index 000000000..cc3282fbd --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h @@ -0,0 +1,75 @@ +/* Uncancelable versions of cancelable interfaces. Linux/NPTL version. + Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> + +#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt +extern int __open_nocancel (const char *, int, ...) attribute_hidden; +extern int __close_nocancel (int) attribute_hidden; +extern int __read_nocancel (int, void *, size_t) attribute_hidden; +extern int __write_nocancel (int, const void *, size_t) attribute_hidden; +extern pid_t __waitpid_nocancel (pid_t, int *, int) attribute_hidden; +#else +#define __open_nocancel(name, ...) __open (name, __VA_ARGS__) +#define __close_nocancel(fd) __close (fd) +#define __read_nocancel(fd, buf, len) __read (fd, buf, len) +#define __write_nocancel(fd, buf, len) __write (fd, buf, len) +#define __waitpid_nocancel(pid, stat_loc, options) \ + __waitpid (pid, stat_loc, options) +#endif + +/* Uncancelable open. */ +#define open_not_cancel(name, flags, mode) \ + __open_nocancel (name, flags, mode) +#define open_not_cancel_2(name, flags) \ + __open_nocancel (name, flags) + +/* Uncancelable close. */ +#define close_not_cancel(fd) \ + __close_nocancel (fd) +#define close_not_cancel_no_status(fd) \ + (void) ({ INTERNAL_SYSCALL_DECL (err); \ + INTERNAL_SYSCALL (close, err, 1, (fd)); }) + +/* Uncancelable read. */ +#define read_not_cancel(fd, buf, n) \ + __read_nocancel (fd, buf, n) + +/* Uncancelable write. */ +#define write_not_cancel(fd, buf, n) \ + __write_nocancel (fd, buf, n) + +/* Uncancelable writev. */ +#define writev_not_cancel_no_status(fd, iov, n) \ + (void) ({ INTERNAL_SYSCALL_DECL (err); \ + INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); }) + +/* Uncancelable fcntl. */ +#define fcntl_not_cancel(fd, cmd, val) \ + __fcntl_nocancel (fd, cmd, val) + +/* Uncancelable waitpid. */ +#ifdef __NR_waitpid +# define waitpid_not_cancel(pid, stat_loc, options) \ + __waitpid_nocancel (pid, stat_loc, options) +#else +# define waitpid_not_cancel(pid, stat_loc, options) \ + INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL) +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S new file mode 100644 index 000000000..24f5a1d29 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S @@ -0,0 +1,68 @@ +/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab <schwab@gnu.org>. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <kernel-features.h> +#include <tcb-offsets.h> + +/* Save the PID value. */ +#define SAVE_PID \ + movl %gs:PID, %edx; \ + movl %edx, %eax; \ + negl %eax; \ + movl %eax, %gs:PID + +/* Restore the old PID value in the parent. */ +#define RESTORE_PID \ + testl %eax, %eax; \ + je 1f; \ + movl %edx, %gs:PID; \ +1: + +/* Clone the calling process, but without copying the whole address space. + The calling process is suspended until the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ + +ENTRY (__vfork) + /* Pop the return PC value into ECX. */ + popl %ecx + + SAVE_PID + + /* Stuff the syscall number in EAX and enter into the kernel. */ + movl $SYS_ify (vfork), %eax + int $0x80 + + RESTORE_PID + + /* Jump to the return PC. Don't jump directly since this + disturbs the branch target cache. Instead push the return + address back on the stack. */ + pushl %ecx + + cmpl $-4095, %eax + jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ +.Lpseudo_end: + ret +PSEUDO_END (__vfork) + +weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S new file mode 100644 index 000000000..312933c5e --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S @@ -0,0 +1,182 @@ +/* Copyright (C) 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <unwindbuf.h> +#include <sysdep.h> + +#ifndef UP +# define LOCK lock +#else +# define LOCK +#endif + +#define SYS_futex 240 +#define FUTEX_WAKE 1 + + .comm __fork_generation, 4, 4 + + .text + + + .globl __pthread_once + .type __pthread_once,@function + .align 16 + cfi_startproc +__pthread_once: + movl 4(%esp), %ecx + testl $2, (%ecx) + jz 1f + xorl %eax, %eax + ret + +1: pushl %ebx + cfi_adjust_cfa_offset (4) + cfi_rel_offset (3, 0) + pushl %esi + cfi_adjust_cfa_offset (4) + cfi_rel_offset (6, 0) + movl %ecx, %ebx + xorl %esi, %esi + + /* Not yet initialized or initialization in progress. + Get the fork generation counter now. */ +6: movl (%ebx), %eax +#ifdef PIC + call __i686.get_pc_thunk.cx + addl $_GLOBAL_OFFSET_TABLE_, %ecx +#endif + +5: movl %eax, %edx + + testl $2, %eax + jnz 4f + + andl $3, %edx +#ifdef PIC + orl __fork_generation@GOTOFF(%ecx), %edx +#else + orl __fork_generation, %edx +#endif + orl $1, %edx + + LOCK + cmpxchgl %edx, (%ebx) + jnz 5b + + /* Check whether another thread already runs the initializer. */ + testl $1, %eax + jz 3f /* No -> do it. */ + + /* Check whether the initializer execution was interrupted + by a fork. */ + xorl %edx, %eax + testl $0xfffffffc, %eax + jnz 3f /* Different for generation -> run initializer. */ + + /* Somebody else got here first. Wait. */ + movl %esi, %ecx /* movl $FUTEX_WAIT, %ecx */ + movl $SYS_futex, %eax + ENTER_KERNEL + jmp 6b + +3: /* Call the initializer function after setting up the + cancellation handler. Note that it is not possible here + to use the unwind-based cleanup handling. This would require + that the user-provided function and all the code it calls + is compiled with exceptions. Unfortunately this cannot be + guaranteed. */ + subl $UNWINDBUFSIZE+8, %esp + cfi_adjust_cfa_offset (UNWINDBUFSIZE+8) + movl %ecx, %ebx /* PIC register value. */ + + leal 8+UWJMPBUF(%esp), %eax + movl $0, 4(%esp) + movl %eax, (%esp) + call __sigsetjmp@PLT + testl %eax, %eax + jne 7f + + leal 8(%esp), %eax + call HIDDEN_JUMPTARGET(__pthread_register_cancel) + + /* Call the user-provided initialization function. */ + call *24+UNWINDBUFSIZE(%esp) + + /* Pop the cleanup handler. */ + leal 8(%esp), %eax + call HIDDEN_JUMPTARGET(__pthread_unregister_cancel) + addl $UNWINDBUFSIZE+8, %esp + cfi_adjust_cfa_offset (-UNWINDBUFSIZE-8) + + /* Sucessful run of the initializer. Signal that we are done. */ + movl 12(%esp), %ebx + LOCK + addl $1, (%ebx) + + /* Wake up all other threads. */ + movl $0x7fffffff, %edx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + ENTER_KERNEL + +4: popl %esi + cfi_adjust_cfa_offset (-4) + cfi_restore (6) + popl %ebx + cfi_adjust_cfa_offset (-4) + cfi_restore (3) + xorl %eax, %eax + ret + +7: /* __sigsetjmp returned for the second time. */ + movl 20+UNWINDBUFSIZE(%esp), %ebx + cfi_adjust_cfa_offset (UNWINDBUFSIZE+16) + cfi_offset (3, -8) + cfi_offset (6, -12) + movl $0, (%ebx) + + movl $0x7fffffff, %edx + movl $FUTEX_WAKE, %ecx + movl $SYS_futex, %eax + ENTER_KERNEL + + leal 8(%esp), %eax + call HIDDEN_JUMPTARGET (__pthread_unwind_next) + /* NOTREACHED */ + hlt + cfi_endproc + .size __pthread_once,.-__pthread_once + + .globl __pthread_once_internal +__pthread_once_internal = __pthread_once + + .globl pthread_once +pthread_once = __pthread_once + + +#ifdef PIC + .section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits + .globl __i686.get_pc_thunk.cx + .hidden __i686.get_pc_thunk.cx + .type __i686.get_pc_thunk.cx,@function +__i686.get_pc_thunk.cx: + movl (%esp), %ecx; + ret + .size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c new file mode 100644 index 000000000..80c0b5216 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c @@ -0,0 +1 @@ +#include <nptl/sysdeps/i386/pthread_spin_init.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S new file mode 100644 index 000000000..41c71f348 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S @@ -0,0 +1 @@ +#include <nptl/sysdeps/i386/pthread_spin_unlock.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h new file mode 100644 index 000000000..147f5c847 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h @@ -0,0 +1,139 @@ +/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <tls.h> +#ifndef __ASSEMBLER__ +# include <nptl/pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + cmpl $0, %gs:MULTIPLE_THREADS_OFFSET; \ + jne L(pseudo_cancel); \ + .type __##syscall_name##_nocancel,@function; \ + .globl __##syscall_name##_nocancel; \ + __##syscall_name##_nocancel: \ + DO_CALL (syscall_name, args); \ + cmpl $-4095, %eax; \ + jae SYSCALL_ERROR_LABEL; \ + ret; \ + .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ + L(pseudo_cancel): \ + CENABLE \ + SAVE_OLDTYPE_##args \ + PUSHCARGS_##args \ + DOCARGS_##args \ + movl $SYS_ify (syscall_name), %eax; \ + ENTER_KERNEL; \ + POPCARGS_##args; \ + POPSTATE_##args \ + cmpl $-4095, %eax; \ + jae SYSCALL_ERROR_LABEL; \ + L(pseudo_end): + +# define SAVE_OLDTYPE_0 movl %eax, %ecx; +# define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0 +# define SAVE_OLDTYPE_2 pushl %eax; cfi_adjust_cfa_offset (4); +# define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2 +# define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2 +# define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2 + +# define PUSHCARGS_0 /* No arguments to push. */ +# define DOCARGS_0 /* No arguments to frob. */ +# define POPCARGS_0 /* No arguments to pop. */ +# define _PUSHCARGS_0 /* No arguments to push. */ +# define _POPCARGS_0 /* No arguments to pop. */ + +# define PUSHCARGS_1 movl %ebx, %edx; cfi_register (ebx, edx); PUSHCARGS_0 +# define DOCARGS_1 _DOARGS_1 (4) +# define POPCARGS_1 POPCARGS_0; movl %edx, %ebx; cfi_restore (ebx); +# define _PUSHCARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (ebx, 0); _PUSHCARGS_0 +# define _POPCARGS_1 _POPCARGS_0; popl %ebx; \ + cfi_adjust_cfa_offset (-4); cfi_restore (ebx); + +# define PUSHCARGS_2 PUSHCARGS_1 +# define DOCARGS_2 _DOARGS_2 (12) +# define POPCARGS_2 POPCARGS_1 +# define _PUSHCARGS_2 _PUSHCARGS_1 +# define _POPCARGS_2 _POPCARGS_1 + +# define PUSHCARGS_3 _PUSHCARGS_2 +# define DOCARGS_3 _DOARGS_3 (20) +# define POPCARGS_3 _POPCARGS_3 +# define _PUSHCARGS_3 _PUSHCARGS_2 +# define _POPCARGS_3 _POPCARGS_2 + +# define PUSHCARGS_4 _PUSHCARGS_4 +# define DOCARGS_4 _DOARGS_4 (28) +# define POPCARGS_4 _POPCARGS_4 +# define _PUSHCARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (esi, 0); _PUSHCARGS_3 +# define _POPCARGS_4 _POPCARGS_3; popl %esi; \ + cfi_adjust_cfa_offset (-4); cfi_restore (esi); + +# define PUSHCARGS_5 _PUSHCARGS_5 +# define DOCARGS_5 _DOARGS_5 (36) +# define POPCARGS_5 _POPCARGS_5 +# define _PUSHCARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (edi, 0); _PUSHCARGS_4 +# define _POPCARGS_5 _POPCARGS_4; popl %edi; \ + cfi_adjust_cfa_offset (-4); cfi_restore (edi); + +# ifdef IS_IN_libpthread +# define CENABLE call __pthread_enable_asynccancel; +# define CDISABLE call __pthread_disable_asynccancel +# elif !defined NOT_IN_libc +# define CENABLE call __libc_enable_asynccancel; +# define CDISABLE call __libc_disable_asynccancel +# elif defined IS_IN_librt +# define CENABLE call __librt_enable_asynccancel; +# define CDISABLE call __librt_disable_asynccancel +# else +# error Unsupported library +# endif +# define POPSTATE_0 \ + pushl %eax; cfi_adjust_cfa_offset (4); movl %ecx, %eax; \ + CDISABLE; popl %eax; cfi_adjust_cfa_offset (-4); +# define POPSTATE_1 POPSTATE_0 +# define POPSTATE_2 xchgl (%esp), %eax; CDISABLE; popl %eax; \ + cfi_adjust_cfa_offset (-4); +# define POPSTATE_3 POPSTATE_2 +# define POPSTATE_4 POPSTATE_3 +# define POPSTATE_5 POPSTATE_4 + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET +# endif + +#elif !defined __ASSEMBLER__ + +# define SINGLE_THREAD_P (1) +# define NO_CANCELLATION 1 + +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S new file mode 100644 index 000000000..52336102c --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S @@ -0,0 +1,38 @@ +/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <tcb-offsets.h> + +/* Save the PID value. */ +#define SAVE_PID \ + movl %gs:PID, %edx; \ + movl %edx, %eax; \ + negl %eax; \ + jne 1f; \ + movl $0x80000000, %eax; \ +1: movl %eax, %gs:PID + +/* Restore the old PID value in the parent. */ +#define RESTORE_PID \ + testl %eax, %eax; \ + je 1f; \ + movl %edx, %gs:PID; \ +1: + + +#include <sysdeps/unix/sysv/linux/i386/vfork.S> |