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--- Libc/Libc-391/ppc/sys/fork.s
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved.
- *
- * File: libc/ppc/sys/fork.s
- *
- * HISTORY
- * 18-Nov-92 Ben Fathi (benf@next.com)
- * Created from M88K sources
- *
- * 11-Jan-92 Peter King (king@next.com)
- * Created from M68K sources
- */
-
-/* We use mode-independent "g" opcodes such as "srgi". These expand
- * into word operations when targeting __ppc__, and into doubleword
- * operations when targeting __ppc64__.
- */
-#include <architecture/ppc/mode_independent_asm.h>
-
-#include "SYS.h"
-
-
-MI_ENTRY_POINT(_fork)
- MI_PUSH_STACK_FRAME
-
- MI_CALL_EXTERNAL(__cthread_fork_prepare)
-
-#if defined(__DYNAMIC__)
- .cstring
-LC1:
- .ascii "__dyld_fork_prepare\0"
- .text
- .align 2
- mflr r0
- bcl 20,31,1f
-1: mflr r3
- mtlr r0
- addis r3,r3,ha16(LC1-1b)
- addi r3,r3,lo16(LC1-1b)
- addi r4,r1,SF_LOCAL1
- bl __dyld_func_lookup
- lg r3,SF_LOCAL1(r1)
- mtspr ctr,r3
- bctrl
-#endif
-
- li r0,SYS_fork
- sc // do the fork
- b Lbotch // error return
-
- cmpwi r4,0 // parent (r4==0) or child (r4==1) ?
- beq Lparent // parent, since r4==0
-
-
-/* Here if we are the child. */
-
-#if defined(__DYNAMIC__)
- .cstring
-LC3:
- .ascii "__dyld_fork_child\0"
- .text
- .align 2
- mflr r0
- bcl 20,31,1f
-1: mflr r3
- mtlr r0
- addis r3,r3,ha16(LC3-1b)
- addi r3,r3,lo16(LC3-1b)
- addi r4,r1,SF_LOCAL1
- bl __dyld_func_lookup
- lg r3,SF_LOCAL1(r1)
- mtspr ctr,r3
- bctrl
-#endif
-
- li r9,0
- MI_GET_ADDRESS(r8,__current_pid)
- stw r9,0(r8) // clear cached pid in child
-
- MI_CALL_EXTERNAL(__cthread_fork_child)
-
-#if defined(__DYNAMIC__)
- .cstring
-LC4:
- .ascii "__dyld_fork_child_final\0"
- .text
- .align 2
- mflr r0
- bcl 20,31,1f
-1: mflr r3
- mtlr r0
- addis r3,r3,ha16(LC4-1b)
- addi r3,r3,lo16(LC4-1b)
- addi r4,r1,SF_LOCAL1
- bl __dyld_func_lookup
- lg r3,SF_LOCAL1(r1)
- mtspr ctr,r3
- bctrl
-#endif
-
- li r3,0 // flag for "we are the child"
- b Lreturn
-
-
-/* Here if we are the parent, with:
- * r3 = child's pid
- */
-Lparent:
- stg r3,SF_LOCAL2(r1) // save child pid in stack
-
-#if defined(__DYNAMIC__)
- mflr r0
- bcl 20,31,1f
-1: mflr r3
- mtlr r0
- addis r3,r3,ha16(LC2-1b)
- addi r3,r3,lo16(LC2-1b)
- addi r4,r1,SF_LOCAL1
- bl __dyld_func_lookup
- lg r3,SF_LOCAL1(r1)
- mtspr ctr,r3
- bctrl
-#endif
-
- b Lparent_return // clean up and return child's pid
-
-
-/* Here if the fork() syscall failed. We're still the parent. */
-
-Lbotch:
-
-#if defined(__DYNAMIC__)
- .cstring
-LC2:
- .ascii "__dyld_fork_parent\0"
- .text
- .align 2
- stg r3,SF_LOCAL2(r1) // save error return in stack
- mflr r0
- bcl 20,31,1f
-1: mflr r3
- mtlr r0
- addis r3,r3,ha16(LC2-1b)
- addi r3,r3,lo16(LC2-1b)
- addi r4,r1,SF_LOCAL1
- bl __dyld_func_lookup
- lg r3,SF_LOCAL1(r1)
- mtspr ctr,r3
- bctrl
- lg r3,SF_LOCAL2(r1) // restore error code
-#endif
-
- MI_CALL_EXTERNAL(cerror)
- li r3,-1 // get an error return code
- stg r3,SF_LOCAL2(r1) // save return code in stack
-
- /*
- * We use cthread_fork_parent() to clean up after a fork error
- * (unlock cthreads and mailloc packages) so the parent
- * process can Malloc() after fork() errors without
- * deadlocking.
- */
-
-Lparent_return:
- MI_CALL_EXTERNAL(__cthread_fork_parent)
- lg r3,SF_LOCAL2(r1) // return -1 on error, child's pid on success
-
-Lreturn:
- MI_POP_STACK_FRAME_AND_RETURN
-