From cccc549ced940c85039c8ce263c8bb571f244afd Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 31 Jan 2006 05:05:15 +0000 Subject: initial import of latest linuxthreads --- .../sysdeps/unix/sysv/linux/i386/CVS/Entries | 4 + .../sysdeps/unix/sysv/linux/i386/CVS/Entries.Log | 2 + .../sysdeps/unix/sysv/linux/i386/CVS/Repository | 1 + .../sysdeps/unix/sysv/linux/i386/CVS/Root | 1 + .../sysdeps/unix/sysv/linux/i386/sysdep-cancel.h | 188 +++++++++++++++++++++ .../sysdeps/unix/sysv/linux/i386/vfork.S | 95 +++++++++++ 6 files changed, 291 insertions(+) create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries.Log create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Repository create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Root create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h create mode 100644 libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S (limited to 'libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386') diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries new file mode 100644 index 000000000..54bfb2bf4 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries @@ -0,0 +1,4 @@ +/sysdep-cancel.h/1.13/Tue Nov 15 14:20:47 2005// +/vfork.S/1.4/Tue Nov 15 14:20:47 2005// +/dl-sysdep.h/-1.2/Wed Nov 16 20:05:14 2005// +D diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries.Log b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries.Log new file mode 100644 index 000000000..bc1536e2e --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Entries.Log @@ -0,0 +1,2 @@ +A D/bits//// +R D/bits//// diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Repository b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Repository new file mode 100644 index 000000000..33e9cbc64 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Repository @@ -0,0 +1 @@ +ports/linuxthreads/sysdeps/unix/sysv/linux/i386 diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Root b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Root new file mode 100644 index 000000000..ca45c5d4d --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/CVS/Root @@ -0,0 +1 @@ +:pserver:anoncvs@sources.redhat.com:/cvs/glibc diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h new file mode 100644 index 000000000..c8be0fdd3 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h @@ -0,0 +1,188 @@ +/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek , 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 +#include +#include +#ifndef __ASSEMBLER__ +# include +#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/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S new file mode 100644 index 000000000..c7a120d23 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/i386/vfork.S @@ -0,0 +1,95 @@ +/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab . + + 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 +#define _ERRNO_H 1 +#include +#include + +/* 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) -- cgit v1.2.3