diff options
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux/i386')
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h | 64 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h | 188 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S | 95 |
3 files changed, 0 insertions, 347 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h deleted file mode 100644 index 5355310ccd..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/dl-sysdep.h +++ /dev/null @@ -1,64 +0,0 @@ -/* 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" \ - 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/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h deleted file mode 100644 index c8be0fdd39..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h +++ /dev/null @@ -1,188 +0,0 @@ -/* 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> -#include <pt-machine.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.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) \ - SINGLE_THREAD_P; \ - jne L(pseudo_cancel); \ - DO_CALL (syscall_name, args); \ - cmpl $-4095, %eax; \ - jae SYSCALL_ERROR_LABEL; \ - ret; \ - L(pseudo_cancel): \ - CENABLE \ - SAVE_OLDTYPE_##args \ - PUSHCARGS_##args \ - DOCARGS_##args \ - movl $SYS_ify (syscall_name), %eax; \ - int $0x80 \ - 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 IS_IN_librt -# ifdef PIC -# define CENABLE pushl %ebx; \ - call __i686.get_pc_thunk.bx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ - call __librt_enable_asynccancel@PLT; \ - popl %ebx; -# define CDISABLE pushl %ebx; \ - call __i686.get_pc_thunk.bx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ - call __librt_disable_asynccancel@PLT; \ - popl %ebx; -# else -# define CENABLE call __librt_enable_asynccancel; -# define CDISABLE call __librt_disable_asynccancel -# endif -# else -# define CENABLE call __libc_enable_asynccancel; -# define CDISABLE call __libc_disable_asynccancel -# 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 - -#if !defined NOT_IN_libc -# define __local_multiple_threads __libc_multiple_threads -#elif defined IS_IN_libpthread -# define __local_multiple_threads __pthread_multiple_threads -#else -# define __local_multiple_threads __librt_multiple_threads -#endif - -# ifndef __ASSEMBLER__ -# if defined FLOATING_STACKS && USE___THREAD && defined PIC -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -extern int __local_multiple_threads -# if !defined NOT_IN_libc || defined IS_IN_libpthread - attribute_hidden; -# else - ; -# endif -# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) -# endif -# else -# if !defined PIC -# define SINGLE_THREAD_P cmpl $0, __local_multiple_threads -# elif defined FLOATING_STACKS && USE___THREAD -# define SINGLE_THREAD_P cmpl $0, %gs:MULTIPLE_THREADS_OFFSET -# else -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# define __SINGLE_THREAD_CMP cmpl $0, __local_multiple_threads@GOTOFF(%ecx) -# else -# define __SINGLE_THREAD_CMP \ - movl __local_multiple_threads@GOT(%ecx), %ecx;\ - cmpl $0, (%ecx) -# endif -# if !defined HAVE_HIDDEN || !USE___THREAD -# define SINGLE_THREAD_P \ - SETUP_PIC_REG (cx); \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - __SINGLE_THREAD_CMP -# else -# define SINGLE_THREAD_P \ - call __i686.get_pc_thunk.cx; \ - addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ - __SINGLE_THREAD_CMP -# endif -# endif -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S deleted file mode 100644 index c7a120d239..0000000000 --- a/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S +++ /dev/null @@ -1,95 +0,0 @@ -/* Copyright (C) 1999, 2002, 2003 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-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <kernel-features.h> - -/* 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) - -#ifdef __NR_vfork - -# ifdef SHARED -# if !defined HAVE_HIDDEN || !USE___THREAD - SETUP_PIC_REG (cx) -# else - call __i686.get_pc_thunk.cx -# endif - addl $_GLOBAL_OFFSET_TABLE_, %ecx - cmpl $0, __libc_pthread_functions@GOTOFF(%ecx) -# else - .weak pthread_create - movl $pthread_create, %eax - testl %eax, %eax -# endif - jne HIDDEN_JUMPTARGET (__fork) - - /* Pop the return PC value into ECX. */ - popl %ecx - - /* Stuff the syscall number in EAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - int $0x80 - - /* 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 - /* Branch forward if it failed. */ -# ifdef __ASSUME_VFORK_SYSCALL - jae SYSCALL_ERROR_LABEL -.Lpseudo_end: -# else - jae .Lerror -# endif - - ret - -# ifndef __ASSUME_VFORK_SYSCALL -.Lerror: - /* Check if vfork syscall is known at all. */ - cmpl $-ENOSYS, %eax - jne SYSCALL_ERROR_LABEL -# endif -#endif - -#ifndef __ASSUME_VFORK_SYSCALL - /* If we don't have vfork, fork is close enough. */ - - movl $SYS_ify (fork), %eax - int $0x80 - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL -.Lpseudo_end: - ret -#elif !defined __NR_vfork -# error "__NR_vfork not available and __ASSUME_VFORK_SYSCALL defined" -#endif -PSEUDO_END (__vfork) -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) |