diff options
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux')
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h | 19 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S | 57 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile (renamed from linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile) | 0 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h | 102 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S | 57 |
5 files changed, 229 insertions, 6 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h index 5f3709f742..38e472d2ba 100644 --- a/linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h +++ b/linuxthreads/sysdeps/unix/sysv/linux/arm/sysdep-cancel.h @@ -27,6 +27,7 @@ # undef PSEUDO_RET # define PSEUDO_RET \ ldrcc pc, [sp], $4; \ + ldr lr, [sp], $4; \ b PLTJMP(SYSCALL_ERROR) # undef PSEUDO @@ -34,7 +35,7 @@ .section ".text"; \ PSEUDO_PROLOGUE; \ ENTRY (name) \ - SINGLE_THREAD_P; \ + SINGLE_THREAD_P_INT; \ bne .Lpseudo_cancel; \ DO_CALL (syscall_name, args); \ cmn r0, $4096; \ @@ -74,7 +75,7 @@ # define UNDOC2ARGS_4 # define DOCARGS_5 stmfd sp!, {r0-r3} -# define UNDOCARGS_5 str r4, [sp, #-4]!; ldmfd sp, {r0-r4} +# define UNDOCARGS_5 ldmfd sp, {r0-r3}; str r4, [sp, #-4]!; ldr r4, [sp, #24] # define UNDOC2ARGS_5 ldr r4, [sp], #20 # ifdef IS_IN_libpthread @@ -92,10 +93,11 @@ extern int __local_multiple_threads attribute_hidden; # define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) # else # if !defined PIC -# define SINGLE_THREAD_P \ +# define SINGLE_THREAD_P_INT \ ldr ip, =__local_multiple_threads; \ ldr ip, [ip]; \ teq ip, #0; +# define SINGLE_THREAD_P SINGLE_THREAD_P_INT # define MAYBE_SAVE_LR \ str lr, [sp, $-4]!; # define PSEUDO_RET_MOV \ @@ -103,14 +105,19 @@ extern int __local_multiple_threads attribute_hidden; b PLTJMP(SYSCALL_ERROR) # define PSEUDO_PROLOGUE # else -# define SINGLE_THREAD_P \ - str lr, [sp, $-4]!; \ +# define SINGLE_THREAD_P_PIC(reg) \ ldr ip, 1b; \ - ldr lr, 2b; \ + ldr reg, 2b; \ 3: \ add ip, pc, ip; \ ldr ip, [ip, lr]; \ teq ip, #0; +# define SINGLE_THREAD_P_INT \ + str lr, [sp, $-4]!; \ + SINGLE_THREAD_P_PIC(lr) +# define SINGLE_THREAD_P \ + SINGLE_THREAD_P_INT; \ + ldr lr, [sp], $4 # define PSEUDO_PROLOGUE \ 1: .word _GLOBAL_OFFSET_TABLE_ - 3f - 8; \ 2: .word __local_multiple_threads(GOTOFF); diff --git a/linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S new file mode 100644 index 0000000000..6092bd9fd4 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/arm/vfork.S @@ -0,0 +1,57 @@ +/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Philip Blundell <philb@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> + +/* Clone the calling process, but without copying the whole address +pace. + 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 +rocess, + and the process ID of the new process to the old process. */ + + PSEUDO_PROLOGUE + +ENTRY (__vfork) + +#ifdef __NR_vfork + SINGLE_THREAD_P + bne HIDDEN_JUMPTARGET (__fork) + swi __NR_vfork + cmn a1, #4096 + RETINSTR(movcc, pc, lr) + + /* Check if vfork syscall is known at all. */ + ldr a2, =-ENOSYS + teq a1, a2 + bne PLTJMP(C_SYMBOL_NAME(__syscall_error)) +#endif + + /* If we don't have vfork, fork is close enough. */ + swi __NR_fork + cmn a1, #4096 + RETINSTR(movcc, pc, lr) + b PLTJMP(C_SYMBOL_NAME(__syscall_error)) + +PSEUDO_END (__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile index e98c9bd866..e98c9bd866 100644 --- a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/Makefile +++ b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile diff --git a/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h new file mode 100644 index 0000000000..58257a17b2 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h @@ -0,0 +1,102 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.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> +#ifndef __ASSEMBLER__ +# include <linuxthreads/internals.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + SINGLE_THREAD_P; \ + bne- .Lpseudo_cancel; \ + DO_CALL (SYS_ify (syscall_name)); \ + PSEUDO_RET; \ + .Lpseudo_cancel: \ + stdu 1,-128(1); \ + mflr 9; \ + std 9,128+16(1); \ + DOCARGS_##args; /* save syscall args around CENABLE. */ \ + CENABLE; \ + std 3,72(1); /* store CENABLE return value (MASK). */ \ + UNDOCARGS_##args; /* restore syscall args. */ \ + DO_CALL (SYS_ify (syscall_name)); \ + mfcr 0; /* save CR/R3 around CDISABLE. */ \ + std 3,64(1); \ + std 0,8(1); \ + ld 3,72(1); /* pass MASK to CDISABLE. */ \ + CDISABLE; \ + ld 9,128+16(1); \ + ld 0,8(1); /* restore CR/R3. */ \ + ld 3,64(1); \ + mtlr 9; \ + mtcr 0; \ + addi 1,1,128; + +# define DOCARGS_0 +# define UNDOCARGS_0 + +# define DOCARGS_1 std 3,80(1); DOCARGS_0 +# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0 + +# define DOCARGS_2 std 4,88(1); DOCARGS_1 +# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1 + +# define DOCARGS_3 std 5,96(1); DOCARGS_2 +# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2 + +# define DOCARGS_4 std 6,104(1); DOCARGS_3 +# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3 + +# define DOCARGS_5 std 7,112(1); DOCARGS_4 +# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4 + +# define DOCARGS_6 std 8,120(1); DOCARGS_5 +# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5 + +# ifdef IS_IN_libpthread +# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# define __local_multiple_threads __pthread_multiple_threads +# else +# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# define __local_multiple_threads __libc_multiple_threads +# endif + +# ifndef __ASSEMBLER__ +extern int __local_multiple_threads attribute_hidden; +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) +# else +# define SINGLE_THREAD_P \ + ld 10,__local_multiple_threads@got(2); \ + ld 10,0(10); \ + cmpdi 10,0 +# 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/sh/vfork.S b/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S new file mode 100644 index 0000000000..f796e31088 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/sh/vfork.S @@ -0,0 +1,57 @@ +/* Copyright (C) 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. */ + +#include <sysdep-cancel.h> +#define _ERRNO_H 1 +#include <bits/errno.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) + SINGLE_THREAD_P + bf .Lhidden_fork + + mov.w .L1, r3 + trapa #0x10 + mov r0, r1 + mov #-12, r2 + shad r2, r1 + not r1, r1 // r1=0 means r0 = -1 to -4095 + tst r1, r1 // i.e. error in linux + bf .Lpseudo_end + SYSCALL_ERROR_HANDLER +.Lpseudo_end: + rts + nop +.L1: .word __NR_vfork + +.Lhidden_fork: + mov.l .L2, r1 + braf r1 + nop +1: + .align 2 +.L2: .long HIDDEN_JUMPTARGET(__fork)-1b + +PSEUDO_END (__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) |