* sysdeps/unix/sysv/linux/x86_64/sem_post.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: New file.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: New file.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Fix error value in
unused code.
2003-03-10 Ulrich Drepper <drepper@redhat.com>
+ * sysdeps/unix/sysv/linux/x86_64/sem_post.S: New file.
+ * sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: New file.
+ * sysdeps/unix/sysv/linux/x86_64/sem_wait.S: New file.
+ * sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: New file.
+
+ * sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Fix error value in
+ unused code.
+
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: New file
* sysdeps/unix/sysv/linux/Makefile (gen-as-const-headers): Add
#define SYS_futex 240
#define FUTEX_WAKE 1
-#define EAGAIN 11
#define EINVAL 22
movl $EINVAL, (%edx)
#else
call __errno_location@plt
- movl $EAGAIN, (%eax)
+ movl $EINVAL, (%eax)
#endif
orl $-1, %eax
--- /dev/null
+/* 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 <shlib-compat.h>
+
+#ifndef UP
+# define LOCK lock
+#else
+# define
+#endif
+
+#define SYS_futex 202
+#define FUTEX_WAKE 1
+
+#define EINVAL 22
+
+
+ .text
+
+ .globl __new_sem_post
+ .type __new_sem_post,@function
+ .align 16
+__new_sem_post:
+ movl $1, %edx
+ LOCK
+ xaddl %edx, (%ebx)
+
+ movq $SYS_futex, %rax
+ movq $FUTEX_WAKE, %rsi
+ incl %edx
+ syscall
+
+ testq %rax, %rax
+ js 1f
+
+ xorl %eax, %eax
+ retq
+
+1:
+#if USE___THREAD
+ movq errno@gottpoff(%rip), %rdx
+ movl $EINVAL, %fs:(%rdx)
+#else
+ call __errno_location@plt
+ movl $EINVAL, (%rax)
+#endif
+
+ orl $-1, %eax
+ retq
+ .size __new_sem_post,.-__new_sem_post
+ .symver __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
+ .symver __old_sem_post, sem_post@GLIBC_2.0
+#endif
--- /dev/null
+/* 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 <shlib-compat.h>
+
+#ifndef UP
+# define LOCK lock
+#else
+# define
+#endif
+
+#define SYS_gettimeofday __NR_gettimeofday
+#define SYS_futex 202
+
+#define EWOULDBLOCK 11
+#define EINVAL 22
+#define ETIMEDOUT 110
+
+
+ .text
+
+ .globl sem_timedwait
+ .type sem_timedwait,@function
+ .align 16
+sem_timedwait:
+ movl (%rdi), %eax
+2: testl %eax, %eax
+ je 1f
+
+ leal -1(%eax), %edx
+ LOCK
+ cmpxchgl %edx, (%rdi)
+ jne 2b
+
+ xorl %eax, %eax
+ ret
+
+ /* Check whether the timeout value is valid. */
+1: subq $16, %rsp
+
+ movq %rsp, %r10
+ movq %rdi, %r8
+ movq %rsi, %r9
+
+ /* Check for invalid nanosecond field. */
+ cmpq $1000000000, 4(%r9)
+ movl $EINVAL, %eax
+ jae 6f
+
+7: xorl %rsi, %rsi
+ movq %rsp, %rdi
+ movq $SYS_gettimeofday, %rax
+ syscall
+
+ /* Compute relative timeout. */
+ movq 8(%rsp), %eax
+ movq $1000, %rdi
+ mul %rdi /* Milli seconds to nano seconds. */
+ movq (%r9), %rdi
+ movq 8(%r9), %rdi
+ subq (%rsp), %rdi
+ subq %rax, %rdi
+ jns 5f
+ addq $1000000000, %rsi
+ decq %rdi
+5: testq %rdi, %rdi
+ movl $ETIMEDOUT, %eax
+ js 6f /* Time is already up. */
+
+ movl %rdi, (%rsp) /* Store relative timeout. */
+ movl %rsi, 8(%rsp)
+
+ movq %r8, %rdi
+ xorq %rsi, %rsi
+ movq $SYS_futex, %rax
+ xorl %edx, %edx
+ syscall
+
+ testq %rax, %rax
+ je 9f
+ cmpq $-EWOULDBLOCK, %rax
+ jne 3f
+
+9: movl (%rdi), %eax
+8: testl %eax, %eax
+ je 7b
+
+ leal -1(%eax), %ecx
+ LOCK
+ cmpxchgl %ecx, (%rdi)
+ jne 8b
+
+ addq $16, %rsp
+ xorl %eax, %eax
+ retq
+
+3: negq %eax
+6:
+#if USE___THREAD
+ movq errno@gottpoff(%rip), %rdx
+ movl %eax, %fs:(%rdx)
+#else
+ movl %eax, %edx
+ call __errno_location@plt
+ movl %edx, (%rax)
+#endif
+
+ addq $16, %rsp
+ orl $-1, %eax
+ retq
+ .size sem_timedwait,.-sem_timedwait
--- /dev/null
+/* 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 <shlib-compat.h>
+
+#ifndef UP
+# define LOCK lock
+#else
+# define
+#endif
+
+#define SYS_futex 202
+#define FUTEX_WAKE 1
+
+#define EAGAIN 11
+
+
+ .text
+
+ .globl __new_sem_trywait
+ .type __new_sem_trywait,@function
+ .align 16
+__new_sem_trywait:
+ movl (%rdi), %eax
+2: testl %eax, %eax
+ jz 1f
+
+ leal -1(%eax), %edx
+ LOCK
+ cmpxchgl %edx, (%rdi)
+ jne 2b
+
+ xorl %eax, %eax
+ retq
+
+1:
+#if USE___THREAD
+ movq errno@gottpoff(%rip), %rdx
+ movl $EAGAIN, %fs:(%rdx)
+#else
+ call __errno_location@plt
+ movl $EAGAIN, (%rax)
+#endif
+ orl $-1, %eax
+ retq
+ .size __new_sem_trywait,.-__new_sem_trywait
+ .symver __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
+ .symver __old_sem_trywait, sem_trywait@GLIBC_2.0
+#endif
--- /dev/null
+/* 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 <shlib-compat.h>
+
+#ifndef UP
+# define LOCK lock
+#else
+# define
+#endif
+
+#define SYS_futex 202
+
+#define EWOULDBLOCK 11
+
+
+ .text
+
+ .globl __new_sem_wait
+ .type __new_sem_wait,@function
+ .align 16
+__new_sem_wait:
+3: movl (%rdi), %eax
+2: testl %eax, %eax
+ je 1f
+
+ leal -1(%eax), %edx
+ LOCK
+ cmpxchgl %edx, (%rdi)
+ jne 2b
+ xorl %eax, %eax
+
+ retq
+
+1: xorq %r10, %r10
+ movq $SYS_futex, %rax
+ movq %r10, %rsi
+ movq %r10, %rdx
+ syscall
+
+ testq %rax, %rax
+ je 3b
+ cmpq $-EWOULDBLOCK, %rax
+ je 3b
+ negq %rax
+#if USE___THREAD
+ movq errno@gottpoff(%rip), %rdx
+ movl %eax, %fs:(%rdx)
+#else
+ movl %eax, %edx
+ call __errno_location@plt
+ movl %edx, (%rax)
+#endif
+ orl $-1, %eax
+ retq
+ .size __new_sem_wait,.-__new_sem_wait
+ .symver __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
+ .symver __old_sem_wait, sem_wait@GLIBC_2.0
+#endif
projects / platform / upstream / linaro-glibc.git / commitdiff