remove gc

1 files changed, 0 insertions, 581 deletions

diff --git a/gc/mach_dep.c b/gc/mach_dep.c
deleted file mode 100644
index 4a66d5d..0000000
--- a/gc/mach_dep.c
+++ /dev/null
@@ -1,581 +0,0 @@
-/* 
- * Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
- * Copyright (c) 1991-1994 by Xerox Corporation.  All rights reserved.
- *
- * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
- *
- * Permission is hereby granted to use or copy this program
- * for any purpose,  provided the above notices are retained on all copies.
- * Permission to modify the code and to distribute modified code is granted,
- * provided the above notices are retained, and a notice that the code was
- * modified is included with the above copyright notice.
- */
-/* Boehm, November 17, 1995 12:13 pm PST */
-# include "private/gc_priv.h"
-# include <stdio.h>
-# include <setjmp.h>
-# if defined(OS2) || defined(CX_UX)
-#   define _setjmp(b) setjmp(b)
-#   define _longjmp(b,v) longjmp(b,v)
-# endif
-# ifdef AMIGA
-#   ifndef __GNUC__
-#     include <dos.h>
-#   else
-#     include <machine/reg.h>
-#   endif
-# endif
-
-#if defined(__MWERKS__) && !defined(POWERPC)
-
-asm static void PushMacRegisters()
-{
-    sub.w   #4,sp                   // reserve space for one parameter.
-    move.l  a2,(sp)
-    jsr		GC_push_one
-    move.l  a3,(sp)
-    jsr		GC_push_one
-    move.l  a4,(sp)
-    jsr		GC_push_one
-#   if !__option(a6frames)
-	// <pcb> perhaps a6 should be pushed if stack frames are not being used.    
-  	move.l	a6,(sp)
-  	jsr		GC_push_one
-#   endif
-	// skip a5 (globals), a6 (frame pointer), and a7 (stack pointer)
-    move.l  d2,(sp)
-    jsr		GC_push_one
-    move.l  d3,(sp)
-    jsr		GC_push_one
-    move.l  d4,(sp)
-    jsr		GC_push_one
-    move.l  d5,(sp)
-    jsr		GC_push_one
-    move.l  d6,(sp)
-    jsr		GC_push_one
-    move.l  d7,(sp)
-    jsr		GC_push_one
-    add.w   #4,sp                   // fix stack.
-    rts
-}
-
-#endif /* __MWERKS__ */
-
-# if defined(SPARC) || defined(IA64)
-    /* Value returned from register flushing routine; either sp (SPARC) */
-    /* or ar.bsp (IA64)							*/
-    word GC_save_regs_ret_val;
-# endif
-
-/* Routine to mark from registers that are preserved by the C compiler. */
-/* This must be ported to every new architecture.  There is a generic   */
-/* version at the end, that is likely, but not guaranteed to work       */
-/* on your architecture.  Run the test_setjmp program to see whether    */
-/* there is any chance it will work.                                    */
-
-#ifndef USE_GENERIC_PUSH_REGS
-void GC_push_regs()
-{
-#       ifdef RT
-	  register long TMP_SP; /* must be bound to r11 */
-#       endif
-
-#       ifdef VAX
-	  /* VAX - generic code below does not work under 4.2 */
-	  /* r1 through r5 are caller save, and therefore     */
-	  /* on the stack or dead.                            */
-	  asm("pushl r11");     asm("calls $1,_GC_push_one");
-	  asm("pushl r10"); 	asm("calls $1,_GC_push_one");
-	  asm("pushl r9");	asm("calls $1,_GC_push_one");
-	  asm("pushl r8");	asm("calls $1,_GC_push_one");
-	  asm("pushl r7");	asm("calls $1,_GC_push_one");
-	  asm("pushl r6");	asm("calls $1,_GC_push_one");
-#       endif
-#       if defined(M68K) && (defined(SUNOS4) || defined(NEXT))
-	/*  M68K SUNOS - could be replaced by generic code */
-	  /* a0, a1 and d1 are caller save          */
-	  /*  and therefore are on stack or dead.   */
-	
-	  asm("subqw #0x4,sp");		/* allocate word on top of stack */
-
-	  asm("movl a2,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl a3,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl a4,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl a5,sp@");	asm("jbsr _GC_push_one");
-	  /* Skip frame pointer and stack pointer */
-	  asm("movl d1,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d2,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d3,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d4,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d5,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d6,sp@");	asm("jbsr _GC_push_one");
-	  asm("movl d7,sp@");	asm("jbsr _GC_push_one");
-
-	  asm("addqw #0x4,sp");		/* put stack back where it was	*/
-#       endif
-
-#       if defined(M68K) && defined(HP)
-	/*  M68K HP - could be replaced by generic code */
-	  /* a0, a1 and d1 are caller save.  */
-	
-	  asm("subq.w &0x4,%sp");	/* allocate word on top of stack */
-
-	  asm("mov.l %a2,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a3,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a4,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a5,(%sp)"); asm("jsr _GC_push_one");
-	  /* Skip frame pointer and stack pointer */
-	  asm("mov.l %d1,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d2,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d3,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d4,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d5,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d6,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d7,(%sp)"); asm("jsr _GC_push_one");
-
-	  asm("addq.w &0x4,%sp");	/* put stack back where it was	*/
-#       endif /* M68K HP */
-
-#	if defined(M68K) && defined(AMIGA)
- 	 /*  AMIGA - could be replaced by generic code 			*/
- 	 /* a0, a1, d0 and d1 are caller save */
-
-#        ifdef __GNUC__
-	  asm("subq.w &0x4,%sp");	/* allocate word on top of stack */
-
-	  asm("mov.l %a2,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a3,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a4,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a5,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %a6,(%sp)"); asm("jsr _GC_push_one");
-	  /* Skip frame pointer and stack pointer */
-	  asm("mov.l %d2,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d3,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d4,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d5,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d6,(%sp)"); asm("jsr _GC_push_one");
-	  asm("mov.l %d7,(%sp)"); asm("jsr _GC_push_one");
-
-	  asm("addq.w &0x4,%sp");	/* put stack back where it was	*/
-#        else /* !__GNUC__ */
-	  GC_push_one(getreg(REG_A2));
-	  GC_push_one(getreg(REG_A3));
-#         ifndef __SASC
-	      /* Can probably be changed to #if 0 -Kjetil M. (a4=globals)*/
-	    GC_push_one(getreg(REG_A4));
-#	  endif
-	  GC_push_one(getreg(REG_A5));
-	  GC_push_one(getreg(REG_A6));
-	  /* Skip stack pointer */
-	  GC_push_one(getreg(REG_D2));
-	  GC_push_one(getreg(REG_D3));
-	  GC_push_one(getreg(REG_D4));
-	  GC_push_one(getreg(REG_D5));
-	  GC_push_one(getreg(REG_D6));
-	  GC_push_one(getreg(REG_D7));
-#	 endif /* !__GNUC__ */
-#       endif /* AMIGA */
-
-#	if defined(M68K) && defined(MACOS)
-#	if defined(THINK_C)
-#         define PushMacReg(reg) \
-              move.l  reg,(sp) \
-              jsr             GC_push_one
-	  asm {
-              sub.w   #4,sp                   ; reserve space for one parameter.
-              PushMacReg(a2);
-              PushMacReg(a3);
-              PushMacReg(a4);
-              ; skip a5 (globals), a6 (frame pointer), and a7 (stack pointer)
-              PushMacReg(d2);
-              PushMacReg(d3);
-              PushMacReg(d4);
-              PushMacReg(d5);
-              PushMacReg(d6);
-              PushMacReg(d7);
-              add.w   #4,sp                   ; fix stack.
-	  }
-#	  undef PushMacReg
-#	endif /* THINK_C */
-#	if defined(__MWERKS__)
-	  PushMacRegisters();
-#	endif	/* __MWERKS__ */
-#   endif	/* MACOS */
-
-#       if defined(I386) &&!defined(OS2) &&!defined(SVR4) \
-	&& (defined(__MINGW32__) || !defined(MSWIN32)) \
-	&& !defined(SCO) && !defined(SCO_ELF) \
- 	&& !(defined(LINUX) && defined(__ELF__)) \
-	&& !(defined(FREEBSD) && defined(__ELF__)) \
-	&& !(defined(NETBSD) && defined(__ELF__)) \
-	&& !(defined(OPENBSD) && defined(__ELF__)) \
-	&& !(defined(BEOS) && defined(__ELF__)) \
-	&& !defined(DOS4GW) && !defined(HURD)
-	/* I386 code, generic code does not appear to work */
-	/* It does appear to work under OS2, and asms dont */
-	/* This is used for some 38g UNIX variants and for CYGWIN32 */
-	  asm("pushl %eax");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ecx");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %edx");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ebp");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %esi");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %edi");  asm("call _GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ebx");  asm("call _GC_push_one"); asm("addl $4,%esp");
-#       endif
-
-#	if ( defined(I386) && defined(LINUX) && defined(__ELF__) ) \
-	|| ( defined(I386) && defined(FREEBSD) && defined(__ELF__) ) \
-	|| ( defined(I386) && defined(NETBSD) && defined(__ELF__) ) \
-	|| ( defined(I386) && defined(OPENBSD) && defined(__ELF__) ) \
-	|| ( defined(I386) && defined(HURD) && defined(__ELF__) ) \
-	|| ( defined(I386) && defined(DGUX) )
-
-	/* This is modified for Linux with ELF (Note: _ELF_ only) */
-	/* This section handles FreeBSD with ELF. */
-	/* Eax is caller-save and dead here.  Other caller-save 	*/
-	/* registers could also be skipped.  We assume there are no	*/
-	/* pointers in MMX registers, etc.				*/
-	/* We combine instructions in a single asm to prevent gcc from 	*/
-	/* inserting code in the middle.				*/
-	  asm("pushl %ecx; call GC_push_one; addl $4,%esp");
-	  asm("pushl %edx; call GC_push_one; addl $4,%esp");
-	  asm("pushl %ebp; call GC_push_one; addl $4,%esp");
-	  asm("pushl %esi; call GC_push_one; addl $4,%esp");
-	  asm("pushl %edi; call GC_push_one; addl $4,%esp");
-	  asm("pushl %ebx; call GC_push_one; addl $4,%esp");
-#	endif
-
-#	if ( defined(I386) && defined(BEOS) && defined(__ELF__) )
-	/* As far as I can understand from				*/
-	/* http://www.beunited.org/articles/jbq/nasm.shtml,		*/
-	/* only ebp, esi, edi and ebx are not scratch. How MMX 		*/
-	/* etc. registers should be treated, I have no idea. 		*/
-	  asm("pushl %ebp; call GC_push_one; addl $4,%esp");
-	  asm("pushl %esi; call GC_push_one; addl $4,%esp");
-	  asm("pushl %edi; call GC_push_one; addl $4,%esp");
-	  asm("pushl %ebx; call GC_push_one; addl $4,%esp");
-#       endif
-
-#       if defined(I386) && defined(MSWIN32) && !defined(__MINGW32__) \
-	   && !defined(USE_GENERIC)
-	/* I386 code, Microsoft variant		*/
-	  __asm  push eax
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push ebx
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push ecx
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push edx
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push ebp
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push esi
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-	  __asm  push edi
-	  __asm  call GC_push_one
-	  __asm  add esp,4
-#       endif
-
-#       if defined(I386) && (defined(SVR4) || defined(SCO) || defined(SCO_ELF))
-	/* I386 code, SVR4 variant, generic code does not appear to work */
-	  asm("pushl %eax");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ebx");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ecx");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %edx");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %ebp");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %esi");  asm("call GC_push_one"); asm("addl $4,%esp");
-	  asm("pushl %edi");  asm("call GC_push_one"); asm("addl $4,%esp");
-#       endif
-
-#       ifdef NS32K
-	  asm ("movd r3, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
-	  asm ("movd r4, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
-	  asm ("movd r5, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
-	  asm ("movd r6, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
-	  asm ("movd r7, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
-#       endif
-
-#       if defined(SPARC)
-	  {
-	      word GC_save_regs_in_stack();
-	      
-	      GC_save_regs_ret_val = GC_save_regs_in_stack();
-	  }
-#       endif
-
-#	ifdef RT
-	    GC_push_one(TMP_SP);    /* GC_push_one from r11 */
-
-	    asm("cas r11, r6, r0"); GC_push_one(TMP_SP);	/* r6 */
-	    asm("cas r11, r7, r0"); GC_push_one(TMP_SP);	/* through */
-	    asm("cas r11, r8, r0"); GC_push_one(TMP_SP);	/* r10 */
-	    asm("cas r11, r9, r0"); GC_push_one(TMP_SP);
-	    asm("cas r11, r10, r0"); GC_push_one(TMP_SP);
-
-	    asm("cas r11, r12, r0"); GC_push_one(TMP_SP); /* r12 */
-	    asm("cas r11, r13, r0"); GC_push_one(TMP_SP); /* through */
-	    asm("cas r11, r14, r0"); GC_push_one(TMP_SP); /* r15 */
-	    asm("cas r11, r15, r0"); GC_push_one(TMP_SP);
-#       endif
-
-#       if defined(M68K) && defined(SYSV)
-  	/*  Once again similar to SUN and HP, though setjmp appears to work.
-  		--Parag
-  	 */
-#        ifdef __GNUC__
-  	  asm("subqw #0x4,%sp");	/* allocate word on top of stack */
-  
-  	  asm("movl %a2,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %a3,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %a4,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %a5,%sp@");	asm("jbsr GC_push_one");
-  	  /* Skip frame pointer and stack pointer */
-  	  asm("movl %d1,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d2,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d3,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d4,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d5,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d6,%sp@");	asm("jbsr GC_push_one");
-  	  asm("movl %d7,%sp@");	asm("jbsr GC_push_one");
-  
-  	  asm("addqw #0x4,%sp");	/* put stack back where it was	*/
-#        else /* !__GNUC__*/
-  	  asm("subq.w &0x4,%sp");	/* allocate word on top of stack */
-  
-  	  asm("mov.l %a2,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %a3,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %a4,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %a5,(%sp)"); asm("jsr GC_push_one");
-  	  /* Skip frame pointer and stack pointer */
-  	  asm("mov.l %d1,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %d2,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %d3,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %d4,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %d5,(%sp)"); asm("jsr GC_push_one");
-   	  asm("mov.l %d6,(%sp)"); asm("jsr GC_push_one");
-  	  asm("mov.l %d7,(%sp)"); asm("jsr GC_push_one");
-  
-  	  asm("addq.w &0x4,%sp");	/* put stack back where it was	*/
-#        endif /* !__GNUC__ */
-#       endif /* M68K/SYSV */
-
-#     if defined(PJ)
-	{
-	    register int * sp asm ("optop");
-	    extern int *__libc_stack_end;
-
-	    GC_push_all_stack (sp, __libc_stack_end);
-        }
-#     endif
-
-      /* other machines... */
-#       if !defined(M68K) && !defined(VAX) && !defined(RT) 
-#	if !defined(SPARC) && !defined(I386) && !defined(NS32K)
-#	if !defined(POWERPC) && !defined(UTS4) 
-#       if !defined(PJ) && !(defined(MIPS) && defined(LINUX))
-	    --> bad news <--
-#	endif
-#       endif
-#       endif
-#       endif
-}
-#endif /* !USE_GENERIC_PUSH_REGS */
-
-#if defined(USE_GENERIC_PUSH_REGS)
-void GC_generic_push_regs(cold_gc_frame)
-ptr_t cold_gc_frame;
-{
-	{
-#	    ifdef HAVE_BUILTIN_UNWIND_INIT
-	      /* This was suggested by Richard Henderson as the way to	*/
-	      /* force callee-save registers and register windows onto	*/
-	      /* the stack.						*/
-	      __builtin_unwind_init();
-#	    else /* !HAVE_BUILTIN_UNWIND_INIT */
-	      /* Generic code                          */
-	      /* The idea is due to Parag Patel at HP. */
-	      /* We're not sure whether he would like  */
-	      /* to be he acknowledged for it or not.  */
-	      jmp_buf regs;
-	      register word * i = (word *) regs;
-	      register ptr_t lim = (ptr_t)(regs) + (sizeof regs);
-
-	      /* Setjmp doesn't always clear all of the buffer.		*/
-	      /* That tends to preserve garbage.  Clear it.   		*/
-		for (; (char *)i < lim; i++) {
-		    *i = 0;
-		}
-#	      if defined(POWERPC) || defined(MSWIN32) || defined(MSWINCE) \
-                || defined(UTS4) || defined(LINUX) || defined(EWS4800)
-		  (void) setjmp(regs);
-#	      else
-	          (void) _setjmp(regs);
-#	      endif
-#	    endif /* !HAVE_BUILTIN_UNWIND_INIT */
-#           if (defined(SPARC) && !defined(HAVE_BUILTIN_UNWIND_INIT)) \
-		|| defined(IA64)
-	      /* On a register window machine, we need to save register	*/
-	      /* contents on the stack for this to work.  The setjmp	*/
-	      /* is probably not needed on SPARC, since pointers are	*/
-	      /* only stored in windowed or scratch registers.  It is	*/
-	      /* needed on IA64, since some non-windowed registers are	*/
-	      /* preserved.						*/
-	      {
-	        word GC_save_regs_in_stack();
-	      
-	        GC_save_regs_ret_val = GC_save_regs_in_stack();
-		/* On IA64 gcc, could use __builtin_ia64_flushrs() and	*/
-		/* __builtin_ia64_flushrs().  The latter will be done	*/
-		/* implicitly by __builtin_unwind_init() for gcc3.0.1	*/
-		/* and later.						*/
-	      }
-#           endif
-	    GC_push_current_stack(cold_gc_frame);
-	}
-}
-#endif /* USE_GENERIC_PUSH_REGS */
-
-/* On register window machines, we need a way to force registers into 	*/
-/* the stack.	Return sp.						*/
-# ifdef SPARC
-    asm("	.seg 	\"text\"");
-#   ifdef SVR4
-      asm("	.globl	GC_save_regs_in_stack");
-      asm("GC_save_regs_in_stack:");
-      asm("	.type GC_save_regs_in_stack,#function");
-#   else
-      asm("	.globl	_GC_save_regs_in_stack");
-      asm("_GC_save_regs_in_stack:");
-#   endif
-#   if defined(__arch64__) || defined(__sparcv9)
-      asm("	save	%sp,-128,%sp");
-      asm("	flushw");
-      asm("	ret");
-      asm("	restore %sp,2047+128,%o0");
-#   else
-      asm("	ta	0x3   ! ST_FLUSH_WINDOWS");
-      asm("	retl");
-      asm("	mov	%sp,%o0");
-#   endif
-#   ifdef SVR4
-      asm("	.GC_save_regs_in_stack_end:");
-      asm("	.size GC_save_regs_in_stack,.GC_save_regs_in_stack_end-GC_save_regs_in_stack");
-#   endif
-#   ifdef LINT
-	word GC_save_regs_in_stack() { return(0 /* sp really */);}
-#   endif
-# endif
-
-/* On IA64, we also need to flush register windows.  But they end	*/
-/* up on the other side of the stack segment.				*/
-/* Returns the backing store pointer for the register stack.		*/
-/* We now implement this as a separate assembly file, since inline	*/
-/* assembly code here doesn't work with either the Intel or HP 		*/
-/* compilers.								*/
-# if 0
-#   ifdef LINUX
-	asm("        .text");
-	asm("        .psr abi64");
-	asm("        .psr lsb");
-	asm("        .lsb");
-	asm("");
-	asm("        .text");
-	asm("        .align 16");
-	asm("        .global GC_save_regs_in_stack");
-	asm("        .proc GC_save_regs_in_stack");
-	asm("GC_save_regs_in_stack:");
-	asm("        .body");
-	asm("        flushrs");
-	asm("        ;;");
-	asm("        mov r8=ar.bsp");
-	asm("        br.ret.sptk.few rp");
-	asm("        .endp GC_save_regs_in_stack");
-#   endif /* LINUX */
-#   if 0 /* Other alternatives that don't work on HP/UX */
-	word GC_save_regs_in_stack() {
-#	  if USE_BUILTINS
-	    __builtin_ia64_flushrs();
-	    return __builtin_ia64_bsp();
-#	  else
-#	    ifdef HPUX
-	      _asm("        flushrs");
-	      _asm("        ;;");
-	      _asm("        mov r8=ar.bsp");
-	      _asm("        br.ret.sptk.few rp");
-#	    else
-	      asm("        flushrs");
-	      asm("        ;;");
-	      asm("        mov r8=ar.bsp");
-	      asm("        br.ret.sptk.few rp");
-#	    endif
-#	  endif
-	}
-#   endif
-# endif
-
-/* GC_clear_stack_inner(arg, limit) clears stack area up to limit and	*/
-/* returns arg.  Stack clearing is crucial on SPARC, so we supply	*/
-/* an assembly version that's more careful.  Assumes limit is hotter	*/
-/* than sp, and limit is 8 byte aligned.				*/
-#if defined(ASM_CLEAR_CODE)
-#ifndef SPARC
-	--> fix it
-#endif
-# ifdef SUNOS4
-    asm(".globl _GC_clear_stack_inner");
-    asm("_GC_clear_stack_inner:");
-# else
-    asm(".globl GC_clear_stack_inner");
-    asm("GC_clear_stack_inner:");
-    asm(".type GC_save_regs_in_stack,#function");
-# endif
-#if defined(__arch64__) || defined(__sparcv9)
-  asm("mov %sp,%o2");		/* Save sp			*/
-  asm("add %sp,2047-8,%o3");	/* p = sp+bias-8		*/
-  asm("add %o1,-2047-192,%sp");	/* Move sp out of the way,	*/
-  				/* so that traps still work.	*/
-  				/* Includes some extra words	*/
-  				/* so we can be sloppy below.	*/
-  asm("loop:");
-  asm("stx %g0,[%o3]");		/* *(long *)p = 0		*/
-  asm("cmp %o3,%o1");
-  asm("bgu,pt %xcc, loop");	/* if (p > limit) goto loop	*/
-    asm("add %o3,-8,%o3");	/* p -= 8 (delay slot) */
-  asm("retl");
-    asm("mov %o2,%sp");		/* Restore sp., delay slot	*/
-#else
-  asm("mov %sp,%o2");		/* Save sp	*/
-  asm("add %sp,-8,%o3");	/* p = sp-8	*/
-  asm("clr %g1");		/* [g0,g1] = 0	*/
-  asm("add %o1,-0x60,%sp");	/* Move sp out of the way,	*/
-  				/* so that traps still work.	*/
-  				/* Includes some extra words	*/
-  				/* so we can be sloppy below.	*/
-  asm("loop:");
-  asm("std %g0,[%o3]");		/* *(long long *)p = 0	*/
-  asm("cmp %o3,%o1");
-  asm("bgu loop	");		/* if (p > limit) goto loop	*/
-    asm("add %o3,-8,%o3");	/* p -= 8 (delay slot) */
-  asm("retl");
-    asm("mov %o2,%sp");		/* Restore sp., delay slot	*/
-#endif /* old SPARC */
-  /* First argument = %o0 = return value */
-#   ifdef SVR4
-      asm("	.GC_clear_stack_inner_end:");
-      asm("	.size GC_clear_stack_inner,.GC_clear_stack_inner_end-GC_clear_stack_inner");
-#   endif
-  
-# ifdef LINT
-    /*ARGSUSED*/
-    ptr_t GC_clear_stack_inner(arg, limit)
-    ptr_t arg; word limit;
-    { return(arg); }
-# endif
-#endif