/* Copyright (C) 2003, 2004, 2005, 2006 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>#ifndef __ASSEMBLER__# include <nptl/pthreadP.h>#endif#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt# define _IMM12 #-12# define _IMM16 #-16# define _IMP16 #16# undef PSEUDO# define PSEUDO(name, syscall_name, args) \  .text; \  ENTRY (name); \  .Lpseudo_start: \    SINGLE_THREAD_P; \    bf .Lpseudo_cancel; \    .type __##syscall_name##_nocancel,@function; \    .globl __##syscall_name##_nocancel; \    __##syscall_name##_nocancel: \    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; \    .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \ .Lpseudo_cancel: \    sts.l pr,@-r15; \    cfi_adjust_cfa_offset (4); \    cfi_rel_offset (pr, 0); \    add _IMM16,r15; \    cfi_adjust_cfa_offset (16); \    SAVE_ARGS_##args; \    CENABLE; \    LOAD_ARGS_##args; \    add _IMP16,r15; \    cfi_adjust_cfa_offset (-16); \    lds.l @r15+,pr; \    cfi_adjust_cfa_offset (-4); \    cfi_restore (pr); \    DO_CALL(syscall_name, args); \    SYSCALL_INST_PAD; \    sts.l pr,@-r15; \    cfi_adjust_cfa_offset (4); \    cfi_rel_offset (pr, 0); \    mov.l r0,@-r15; \    cfi_adjust_cfa_offset (4); \    cfi_rel_offset (r0, 0); \    CDISABLE; \    mov.l @r15+,r0; \    cfi_adjust_cfa_offset (-4); \    lds.l @r15+,pr; \    cfi_adjust_cfa_offset (-4); \    cfi_restore (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); cfi_offset (r4,-4)# define SAVE_ARGS_2	SAVE_ARGS_1; mov.l r5,@(4,r15); cfi_offset (r5,-8)# define SAVE_ARGS_3	SAVE_ARGS_2; mov.l r6,@(8,r15); cfi_offset (r6,-12)# define SAVE_ARGS_4	SAVE_ARGS_3; mov.l r7,@(12,r15); cfi_offset (r7,-16)# 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# elif !defined NOT_IN_libc#  define __local_enable_asynccancel	__libc_enable_asynccancel#  define __local_disable_asynccancel	__libc_disable_asynccancel# elif defined IS_IN_librt#  define __local_enable_asynccancel	__librt_enable_asynccancel#  define __local_disable_asynccancel	__librt_disable_asynccancel# else#  error Unsupported library# endif# define CENABLE \	mov.l 1f,r0; \	bsrf r0; \	 nop; \     0: bra 2f; \	 mov r0,r2; \	.align 2; \     1: .long __local_enable_asynccancel - 0b; \     2:# define CDISABLE \	mov.l 1f,r0; \	bsrf r0; \	 mov r2,r4; \     0: bra 2f; \	 nop; \	.align 2; \     1: .long __local_disable_asynccancel - 0b; \     2:# ifndef __ASSEMBLER__#  define SINGLE_THREAD_P \  __builtin_expect (THREAD_GETMEM (THREAD_SELF, \				   header.multiple_threads) == 0, 1)# else#  define SINGLE_THREAD_P \	stc gbr,r0; \	mov.w 0f,r1; \	sub r1,r0; \	mov.l @(MULTIPLE_THREADS_OFFSET,r0),r0; \	bra 1f; \	 tst r0,r0; \     0: .word TLS_PRE_TCB_SIZE; \     1:# endif#elif !defined __ASSEMBLER__# define SINGLE_THREAD_P (1)# define NO_CANCELLATION 1#endif#ifndef __ASSEMBLER__# define RTLD_SINGLE_THREAD_P \  __builtin_expect (THREAD_GETMEM (THREAD_SELF, \				   header.multiple_threads) == 0, 1)#endif