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- /* 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 <pthread-errnos.h>
- #include <tls.h>
- #ifndef UP
- # define LOCK lock
- #else
- # define
- #endif
- #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
- weak_alias(__new_sem_post, sem_post)
- #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
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