text: /* 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
  