diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/s390/s390-32')
3 files changed, 297 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c new file mode 100644 index 0000000000..40d4d50c32 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c @@ -0,0 +1,154 @@ +/* Special .init and .fini section support for S/390. + 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. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The Lesser General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + 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; see the file COPYING.LIB. If not, + write to the Free Software Foundation, 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* This file is compiled into assembly code which is then munged by a sed + script into two files: crti.s and crtn.s. + + * crti.s puts a function prologue at the beginning of the + .init and .fini sections and defines global symbols for + those addresses, so they can be called as functions. + + * crtn.s puts the corresponding function epilogues + in the .init and .fini sections. */ + +__asm__ ("\ +\n\ +#include \"defs.h\"\n\ +\n\ +/*@HEADER_ENDS*/\n\ +\n\ +/*@TESTS_BEGIN*/\n\ +\n\ +/*@TESTS_END*/\n\ +\n\ +/*@_init_PROLOG_BEGINS*/\n\ +\n\ + .section .init\n\ +#NO_APP\n\ + .align 4\n\ +.globl _init\n\ + .type _init,@function\n\ +_init:\n\ +# leaf function 0\n\ +# automatics 0\n\ +# outgoing args 0\n\ +# need frame pointer 0\n\ +# call alloca 0\n\ +# has varargs 0\n\ +# incoming args (stack) 0\n\ +# function length 36\n\ + STM 6,15,24(15)\n\ + BRAS 13,.LTN1_0\n\ +.LT1_0:\n\ +.LC13:\n\ + .long __pthread_initialize_minimal_internal-.LT1_0\n\ +.LC14:\n\ + .long __gmon_start__@GOT\n\ +.LC15:\n\ + .long _GLOBAL_OFFSET_TABLE_-.LT1_0\n\ +.LTN1_0:\n\ + LR 1,15\n\ + AHI 15,-96\n\ + ST 1,0(15)\n\ + L 12,.LC15-.LT1_0(13)\n\ + AR 12,13\n\ + L 1,.LC13-.LT1_0(13)\n\ + LA 1,0(1,13)\n\ + BASR 14,1\n\ + L 1,.LC14-.LT1_0(13)\n\ + L 1,0(1,12)\n\ + LTR 1,1\n\ + JE .L22\n\ + BASR 14,1\n\ +.L22:\n\ +#APP\n\ + .align 4,0x07\n\ + END_INIT\n\ +\n\ +/*@_init_PROLOG_ENDS*/\n\ +\n\ +/*@_init_EPILOG_BEGINS*/\n\ + .align 4\n\ + .section .init\n\ +#NO_APP\n\ + .align 4\n\ + L 4,152(15)\n\ + LM 6,15,120(15)\n\ + BR 4\n\ +#APP\n\ + END_INIT\n\ +\n\ +/*@_init_EPILOG_ENDS*/\n\ +\n\ +/*@_fini_PROLOG_BEGINS*/\n\ + .section .fini\n\ +#NO_APP\n\ + .align 4\n\ +.globl _fini\n\ + .type _fini,@function\n\ +_fini:\n\ +# leaf function 0\n\ +# automatics 0\n\ +# outgoing args 0\n\ +# need frame pointer 0\n\ +# call alloca 0\n\ +# has varargs 0\n\ +# incoming args (stack) 0\n\ +# function length 30\n\ + STM 6,15,24(15)\n\ + BRAS 13,.LTN2_0\n\ +.LT2_0:\n\ +.LC17:\n\ + .long _GLOBAL_OFFSET_TABLE_-.LT2_0\n\ +.LTN2_0:\n\ + LR 1,15\n\ + AHI 15,-96\n\ + ST 1,0(15)\n\ + L 12,.LC17-.LT2_0(13)\n\ + AR 12,13\n\ +#APP\n\ + .align 4,0x07\n\ + END_FINI\n\ +\n\ +/*@_fini_PROLOG_ENDS*/\n\ +\n\ +/*@_fini_EPILOG_BEGINS*/\n\ + .align 4\n\ + .section .fini\n\ +#NO_APP\n\ + .align 4\n\ + L 4,152(15)\n\ + LM 6,15,120(15)\n\ + BR 4\n\ +#APP\n\ + END_FINI\n\ +\n\ +/*@_fini_EPILOG_ENDS*/\n\ +\n\ +/*@TRAILER_BEGINS*/\ +"); diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-vfork.S b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-vfork.S new file mode 100644 index 0000000000..67a5bc6613 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/pt-vfork.S @@ -0,0 +1,44 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.ibm.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> +#define _ERRNO_H 1 +#include <bits/errno.h> +#include <kernel-features.h> +#include <bits/wordsize.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) + /* Do vfork system call. */ + svc SYS_ify (vfork) + + /* Check for error. */ + lhi %r4,-4095 + clr %r2,%r4 + jnl SYSCALL_ERROR_LABEL + + /* Normal return. */ + br %r14 +PSEUDO_END(__vfork) + +weak_alias (__vfork, vfork) diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h new file mode 100644 index 0000000000..7704bf2b82 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h @@ -0,0 +1,99 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jakub@redhat.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> +#include <tls.h> +#ifndef __ASSEMBLER__ +# include <nptl/pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ +L(pseudo_cancel): \ + STM_##args \ + stm %r12,%r15,48(%r15); \ + lr %r14,%r15; \ + ahi %r15,-96; \ + st %r14,0(%r15); \ + basr %r13,0; \ +0: l %r1,1f-0b(%r13); \ + bas %r14,0(%r1,%r13); \ + lr %r0,%r2; \ + LM_##args \ + DO_CALL(syscall_name, args); \ + l %r1,2f-0b(%r13); \ + lr %r12,%r2; \ + lr %r2,%r0; \ + bas %r14,0(%r1,%r13); \ + lr %r2,%r12; \ + lm %r12,%r15,48+96(%r15); \ + j L(pseudo_check); \ +1: .long CENABLE-0b; \ +2: .long CDISABLE-0b; \ +ENTRY(name) \ + SINGLE_THREAD_P(%r1) \ + jne L(pseudo_cancel); \ + DO_CALL(syscall_name, args); \ +L(pseudo_check): \ + lhi %r4,-4095; \ + clr %r2,%r4; \ + jnl SYSCALL_ERROR_LABEL; \ +L(pseudo_end): + +# ifdef IS_IN_libpthread +# define CENABLE __pthread_enable_asynccancel +# define CDISABLE __pthread_disable_asynccancel +# else +# define CENABLE __libc_enable_asynccancel +# define CDISABLE __libc_disable_asynccancel +# endif + +#define STM_0 /* Nothing */ +#define STM_1 st %r2,8(%r15); +#define STM_2 stm %r2,%r3,8(%r15); +#define STM_3 stm %r2,%r4,8(%r15); +#define STM_4 stm %r2,%r5,8(%r15); +#define STM_5 stm %r2,%r5,8(%r15); + +#define LM_0 /* Nothing */ +#define LM_1 l %r2,8+96(%r15); +#define LM_2 lm %r2,%r3,8+96(%r15); +#define LM_3 lm %r2,%r4,8+96(%r15); +#define LM_4 lm %r2,%r5,8+96(%r15); +#define LM_5 lm %r2,%r5,8+96(%r15); + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.data.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P(reg) \ + ear reg,%a0; \ + icm reg,15,MULTIPLE_THREADS_OFFSET(reg); +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif |