version 1.3, 2000/12/01 09:26:11 |
version 1.4, 2001/04/20 07:39:19 |
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* modified is included with the above copyright notice. |
* modified is included with the above copyright notice. |
*/ |
*/ |
/* Boehm, November 17, 1995 12:13 pm PST */ |
/* Boehm, November 17, 1995 12:13 pm PST */ |
# include "gc_priv.h" |
# include "private/gc_priv.h" |
# include <stdio.h> |
# include <stdio.h> |
# include <setjmp.h> |
# include <setjmp.h> |
# if defined(OS2) || defined(CX_UX) |
# if defined(OS2) || defined(CX_UX) |
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# endif |
# endif |
# ifdef AMIGA |
# ifdef AMIGA |
# ifndef __GNUC__ |
# ifndef __GNUC__ |
# include <dos/dos.h> |
# include <dos.h> |
# else |
# else |
# include <machine/reg.h> |
# include <machine/reg.h> |
# endif |
# endif |
Line 178 void GC_push_regs() |
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Line 178 void GC_push_regs() |
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# else /* !__GNUC__ */ |
# else /* !__GNUC__ */ |
GC_push_one(getreg(REG_A2)); |
GC_push_one(getreg(REG_A2)); |
GC_push_one(getreg(REG_A3)); |
GC_push_one(getreg(REG_A3)); |
GC_push_one(getreg(REG_A4)); |
# ifndef __SASC |
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/* Can probably be changed to #if 0 -Kjetil M. (a4=globals)*/ |
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GC_push_one(getreg(REG_A4)); |
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# endif |
GC_push_one(getreg(REG_A5)); |
GC_push_one(getreg(REG_A5)); |
GC_push_one(getreg(REG_A6)); |
GC_push_one(getreg(REG_A6)); |
/* Skip stack pointer */ |
/* Skip stack pointer */ |
Line 220 void GC_push_regs() |
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Line 223 void GC_push_regs() |
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# if defined(I386) &&!defined(OS2) &&!defined(SVR4) \ |
# if defined(I386) &&!defined(OS2) &&!defined(SVR4) \ |
&& (defined(__MINGW32__) || !defined(MSWIN32)) \ |
&& (defined(__MINGW32__) || !defined(MSWIN32)) \ |
&& !defined(SCO) && !defined(SCO_ELF) \ |
&& !defined(SCO) && !defined(SCO_ELF) \ |
&& !(defined(LINUX) && defined(__ELF__)) \ |
&& !(defined(LINUX) && defined(__ELF__)) \ |
&& !(defined(FREEBSD) && defined(__ELF__)) \ |
&& !(defined(FREEBSD) && defined(__ELF__)) \ |
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&& !(defined(NETBSD) && defined(__ELF__)) \ |
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&& !(defined(OPENBSD) && defined(__ELF__)) \ |
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&& !(defined(BEOS) && defined(__ELF__)) \ |
&& !defined(DOS4GW) |
&& !defined(DOS4GW) |
/* I386 code, generic code does not appear to work */ |
/* I386 code, generic code does not appear to work */ |
/* It does appear to work under OS2, and asms dont */ |
/* It does appear to work under OS2, and asms dont */ |
Line 236 void GC_push_regs() |
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Line 242 void GC_push_regs() |
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# endif |
# endif |
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# if ( defined(I386) && defined(LINUX) && defined(__ELF__) ) \ |
# if ( defined(I386) && defined(LINUX) && defined(__ELF__) ) \ |
|| ( defined(I386) && defined(FREEBSD) && defined(__ELF__) ) |
|| ( defined(I386) && defined(FREEBSD) && defined(__ELF__) ) \ |
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|| ( defined(I386) && defined(NETBSD) && defined(__ELF__) ) \ |
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|| ( defined(I386) && defined(OPENBSD) && defined(__ELF__) ) |
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/* This is modified for Linux with ELF (Note: _ELF_ only) */ |
/* This is modified for Linux with ELF (Note: _ELF_ only) */ |
/* This section handles FreeBSD with ELF. */ |
/* This section handles FreeBSD with ELF. */ |
Line 253 void GC_push_regs() |
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Line 261 void GC_push_regs() |
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asm("pushl %ebx; call GC_push_one; addl $4,%esp"); |
asm("pushl %ebx; call GC_push_one; addl $4,%esp"); |
# endif |
# endif |
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# if ( defined(I386) && defined(BEOS) && defined(__ELF__) ) |
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/* As far as I can understand from */ |
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/* http://www.beunited.org/articles/jbq/nasm.shtml, */ |
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/* only ebp, esi, edi and ebx are not scratch. How MMX */ |
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/* etc. registers should be treated, I have no idea. */ |
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asm("pushl %ebp; call GC_push_one; addl $4,%esp"); |
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asm("pushl %esi; call GC_push_one; addl $4,%esp"); |
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asm("pushl %edi; call GC_push_one; addl $4,%esp"); |
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asm("pushl %ebx; call GC_push_one; addl $4,%esp"); |
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# endif |
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# if defined(I386) && defined(MSWIN32) && !defined(__MINGW32__) \ |
# if defined(I386) && defined(MSWIN32) && !defined(__MINGW32__) \ |
&& !defined(USE_GENERIC) |
&& !defined(USE_GENERIC) |
/* I386 code, Microsoft variant */ |
/* I386 code, Microsoft variant */ |
Line 402 ptr_t cold_gc_frame; |
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Line 421 ptr_t cold_gc_frame; |
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for (; (char *)i < lim; i++) { |
for (; (char *)i < lim; i++) { |
*i = 0; |
*i = 0; |
} |
} |
# if defined(POWERPC) || defined(MSWIN32) || defined(UTS4) || defined(LINUX) |
# if defined(POWERPC) || defined(MSWIN32) || defined(MSWINCE) \ |
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|| defined(UTS4) || defined(LINUX) |
(void) setjmp(regs); |
(void) setjmp(regs); |
# else |
# else |
(void) _setjmp(regs); |
(void) _setjmp(regs); |
Line 437 ptr_t cold_gc_frame; |
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Line 457 ptr_t cold_gc_frame; |
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asm(" .globl _GC_save_regs_in_stack"); |
asm(" .globl _GC_save_regs_in_stack"); |
asm("_GC_save_regs_in_stack:"); |
asm("_GC_save_regs_in_stack:"); |
# endif |
# endif |
asm(" ta 0x3 ! ST_FLUSH_WINDOWS"); |
# if defined(__arch64__) || defined(__sparcv9) |
asm(" mov %sp,%o0"); |
asm(" save %sp,-128,%sp"); |
asm(" retl"); |
asm(" flushw"); |
asm(" nop"); |
asm(" ret"); |
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asm(" restore %sp,2047+128,%o0"); |
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# else |
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asm(" ta 0x3 ! ST_FLUSH_WINDOWS"); |
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asm(" retl"); |
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asm(" mov %sp,%o0"); |
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# endif |
# ifdef SVR4 |
# ifdef SVR4 |
asm(" .GC_save_regs_in_stack_end:"); |
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"); |
asm(" .size GC_save_regs_in_stack,.GC_save_regs_in_stack_end-GC_save_regs_in_stack"); |
Line 454 ptr_t cold_gc_frame; |
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Line 480 ptr_t cold_gc_frame; |
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/* up on the other side of the stack segment. */ |
/* up on the other side of the stack segment. */ |
/* Returns the backing store pointer for the register stack. */ |
/* Returns the backing store pointer for the register stack. */ |
# ifdef IA64 |
# ifdef IA64 |
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# ifdef __GNUC__ |
asm(" .text"); |
asm(" .text"); |
asm(" .psr abi64"); |
asm(" .psr abi64"); |
asm(" .psr lsb"); |
asm(" .psr lsb"); |
Line 470 ptr_t cold_gc_frame; |
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Line 497 ptr_t cold_gc_frame; |
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asm(" mov r8=ar.bsp"); |
asm(" mov r8=ar.bsp"); |
asm(" br.ret.sptk.few rp"); |
asm(" br.ret.sptk.few rp"); |
asm(" .endp GC_save_regs_in_stack"); |
asm(" .endp GC_save_regs_in_stack"); |
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# else |
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void GC_save_regs_in_stack() { |
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asm(" flushrs"); |
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asm(" ;;"); |
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asm(" mov r8=ar.bsp"); |
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asm(" br.ret.sptk.few rp"); |
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} |
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# endif |
# endif |
# endif |
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/* GC_clear_stack_inner(arg, limit) clears stack area up to limit and */ |
/* GC_clear_stack_inner(arg, limit) clears stack area up to limit and */ |
Line 488 ptr_t cold_gc_frame; |
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Line 523 ptr_t cold_gc_frame; |
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asm("GC_clear_stack_inner:"); |
asm("GC_clear_stack_inner:"); |
asm(".type GC_save_regs_in_stack,#function"); |
asm(".type GC_save_regs_in_stack,#function"); |
# endif |
# endif |
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#if defined(__arch64__) || defined(__sparcv9) |
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asm("mov %sp,%o2"); /* Save sp */ |
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asm("add %sp,2047-8,%o3"); /* p = sp+bias-8 */ |
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asm("add %o1,-2047-192,%sp"); /* Move sp out of the way, */ |
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/* so that traps still work. */ |
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/* Includes some extra words */ |
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/* so we can be sloppy below. */ |
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asm("loop:"); |
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asm("stx %g0,[%o3]"); /* *(long *)p = 0 */ |
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asm("cmp %o3,%o1"); |
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asm("bgu,pt %xcc, loop"); /* if (p > limit) goto loop */ |
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asm("add %o3,-8,%o3"); /* p -= 8 (delay slot) */ |
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asm("retl"); |
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asm("mov %o2,%sp"); /* Restore sp., delay slot */ |
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#else |
asm("mov %sp,%o2"); /* Save sp */ |
asm("mov %sp,%o2"); /* Save sp */ |
asm("add %sp,-8,%o3"); /* p = sp-8 */ |
asm("add %sp,-8,%o3"); /* p = sp-8 */ |
asm("clr %g1"); /* [g0,g1] = 0 */ |
asm("clr %g1"); /* [g0,g1] = 0 */ |
Line 502 ptr_t cold_gc_frame; |
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Line 552 ptr_t cold_gc_frame; |
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asm("add %o3,-8,%o3"); /* p -= 8 (delay slot) */ |
asm("add %o3,-8,%o3"); /* p -= 8 (delay slot) */ |
asm("retl"); |
asm("retl"); |
asm("mov %o2,%sp"); /* Restore sp., delay slot */ |
asm("mov %o2,%sp"); /* Restore sp., delay slot */ |
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#endif /* old SPARC */ |
/* First argument = %o0 = return value */ |
/* First argument = %o0 = return value */ |
# ifdef SVR4 |
# ifdef SVR4 |
asm(" .GC_clear_stack_inner_end:"); |
asm(" .GC_clear_stack_inner_end:"); |