diff options
Diffstat (limited to 'linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h')
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h new file mode 100644 index 0000000000..b357eb4e88 --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/sh/sysdep-cancel.h @@ -0,0 +1,163 @@ +/* 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.h> +#include <tls.h> +#include <pt-machine.h> +#ifndef __ASSEMBLER__ +# include <linuxthreads/internals.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# define _IMM12 #-12 +# define _IMM16 #-16 +# define _IMP16 #16 +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name); \ + SINGLE_THREAD_P; \ + bf .Lpseudo_cancel; \ + DO_CALL (syscall_name, args); \ + mov r0,r1; \ + mov _IMM12,r2; \ + shad r2,r1; \ + not r1,r1; \ + tst r1,r1; \ + bt .Lsyscall_error; \ + bra .Lpseudo_end; \ + nop; \ + .Lpseudo_cancel: \ + sts.l pr,@-r15; \ + add _IMM16,r15; \ + SAVE_ARGS_##args; \ + CENABLE; \ + LOAD_ARGS_##args; \ + add _IMP16,r15; \ + lds.l @r15+,pr; \ + DO_CALL(syscall_name, args); \ + sts.l pr,@-r15; \ + mov.l r0,@-r15; \ + CDISABLE; \ + mov.l @r15+,r0; \ + lds.l @r15+,pr; \ + mov r0,r1; \ + mov _IMM12,r2; \ + shad r2,r1; \ + not r1,r1; \ + tst r1,r1; \ + bf .Lpseudo_end; \ + .Lsyscall_error: \ + SYSCALL_ERROR_HANDLER; \ + .Lpseudo_end: + +# undef PSEUDO_END +# define PSEUDO_END(sym) \ + END (sym) + +# define SAVE_ARGS_0 /* Nothing. */ +# define SAVE_ARGS_1 SAVE_ARGS_0; mov.l r4,@(0,r15) +# define SAVE_ARGS_2 SAVE_ARGS_1; mov.l r5,@(4,r15) +# define SAVE_ARGS_3 SAVE_ARGS_2; mov.l r6,@(8,r15) +# define SAVE_ARGS_4 SAVE_ARGS_3; mov.l r7,@(12,r15) +# define SAVE_ARGS_5 SAVE_ARGS_4 +# define SAVE_ARGS_6 SAVE_ARGS_5 + +# define LOAD_ARGS_0 /* Nothing. */ +# define LOAD_ARGS_1 LOAD_ARGS_0; mov.l @(0,r15),r4 +# define LOAD_ARGS_2 LOAD_ARGS_1; mov.l @(4,r15),r5 +# define LOAD_ARGS_3 LOAD_ARGS_2; mov.l @(8,r15),r6 +# define LOAD_ARGS_4 LOAD_ARGS_3; mov.l @(12,r15),r7 +# define LOAD_ARGS_5 LOAD_ARGS_4 +# define LOAD_ARGS_6 LOAD_ARGS_5 + +# ifdef IS_IN_libpthread +# define __local_enable_asynccancel __pthread_enable_asynccancel +# define __local_disable_asynccancel __pthread_disable_asynccancel +# define __local_multiple_threads __pthread_multiple_threads +# else +# define __local_enable_asynccancel __libc_enable_asynccancel +# define __local_disable_asynccancel __libc_disable_asynccancel +# define __local_multiple_threads __libc_multiple_threads +# endif + +# define CENABLE \ + mov.l 1f,r0; \ + bsrf r0; \ + nop; \ + 0: bra 2f; \ + nop; \ + .align 2; \ + 1: .long __local_enable_asynccancel - 0b; \ + 2: +# define CDISABLE \ + mov.l 1f,r0; \ + bsrf r0; \ + nop; \ + 0: bra 2f; \ + nop; \ + .align 2; \ + 1: .long __local_disable_asynccancel - 0b; \ + 2: + +# 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 attribute_hidden; +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) +# endif +# else +# if !defined PIC +# define SINGLE_THREAD_P \ + mov.l 1f,r0; \ + bra 2f; \ + tst r0,r0; \ + .align 2; \ + 1: .long __local_multiple_threads; \ + 2: +# elif defined FLOATING_STACKS && USE___THREAD +# define SINGLE_THREAD_P \ + mov.l @(MULTIPLE_THREADS_OFFSET,gbr),r0; tst r0,r0 +# else +# define SINGLE_THREAD_P \ + mov r12,r2; \ + mov.l 0f,r12; \ + mova 0f,r0; \ + add r0,r12; \ + mov.l 1f,r0; \ + mov.l @(r0,r12),r0; \ + mov r2,r12; \ + bra 2f; \ + tst r0,r0; \ + .align 2; \ + 0: .long _GLOBAL_OFFSET_TABLE_; \ + 1: .long __local_multiple_threads@GOTOFF; \ + 2: +# endif +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif |