version 1.5, 2002/07/24 07:46:19 |
version 1.6, 2002/07/24 08:00:10 |
Line 81 void GC_push_regs() |
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Line 81 void GC_push_regs() |
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register long TMP_SP; /* must be bound to r11 */ |
register long TMP_SP; /* must be bound to r11 */ |
# endif |
# endif |
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# if defined(MIPS) && defined(LINUX) |
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/* I'm not sure whether this has actually been tested. */ |
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# define call_push(x) asm("move $4," x ";"); asm("jal GC_push_one") |
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call_push("$2"); |
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call_push("$3"); |
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call_push("$16"); |
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call_push("$17"); |
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call_push("$18"); |
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call_push("$19"); |
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call_push("$20"); |
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call_push("$21"); |
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call_push("$22"); |
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call_push("$23"); |
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call_push("$30"); |
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# undef call_push |
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# endif /* MIPS && LINUX */ |
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# ifdef VAX |
# ifdef VAX |
/* VAX - generic code below does not work under 4.2 */ |
/* VAX - generic code below does not work under 4.2 */ |
/* r1 through r5 are caller save, and therefore */ |
/* r1 through r5 are caller save, and therefore */ |
Line 228 void GC_push_regs() |
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Line 211 void GC_push_regs() |
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&& !(defined(NETBSD) && defined(__ELF__)) \ |
&& !(defined(NETBSD) && defined(__ELF__)) \ |
&& !(defined(OPENBSD) && defined(__ELF__)) \ |
&& !(defined(OPENBSD) && defined(__ELF__)) \ |
&& !(defined(BEOS) && defined(__ELF__)) \ |
&& !(defined(BEOS) && defined(__ELF__)) \ |
&& !defined(DOS4GW) |
&& !defined(DOS4GW) && !defined(HURD) |
/* 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 */ |
/* This is used for some 38g UNIX variants and for CYGWIN32 */ |
/* This is used for some 38g UNIX variants and for CYGWIN32 */ |
Line 244 void GC_push_regs() |
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Line 227 void GC_push_regs() |
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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__) ) \ |
|| ( defined(I386) && defined(NETBSD) && defined(__ELF__) ) \ |
|| ( defined(I386) && defined(NETBSD) && defined(__ELF__) ) \ |
|| ( defined(I386) && defined(OPENBSD) && defined(__ELF__) ) |
|| ( defined(I386) && defined(OPENBSD) && defined(__ELF__) ) \ |
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|| ( defined(I386) && defined(HURD) && defined(__ELF__) ) \ |
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|| ( defined(I386) && defined(DGUX) ) |
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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 391 void GC_push_regs() |
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Line 376 void GC_push_regs() |
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# endif |
# endif |
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/* other machines... */ |
/* other machines... */ |
# if !(defined M68K) && !(defined VAX) && !(defined RT) |
# if !defined(M68K) && !defined(VAX) && !defined(RT) |
# if !(defined SPARC) && !(defined I386) && !(defined NS32K) |
# if !defined(SPARC) && !defined(I386) && !defined(NS32K) |
# if !defined(POWERPC) && !defined(UTS4) |
# if !defined(POWERPC) && !defined(UTS4) |
# if !defined(PJ) && !(defined(MIPS) && defined(LINUX)) |
# if !defined(PJ) && !(defined(MIPS) && defined(LINUX)) |
--> bad news <-- |
--> bad news <-- |
Line 407 void GC_push_regs() |
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Line 392 void GC_push_regs() |
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void GC_generic_push_regs(cold_gc_frame) |
void GC_generic_push_regs(cold_gc_frame) |
ptr_t cold_gc_frame; |
ptr_t cold_gc_frame; |
{ |
{ |
/* Generic code */ |
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/* The idea is due to Parag Patel at HP. */ |
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/* We're not sure whether he would like */ |
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/* to be he acknowledged for it or not. */ |
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{ |
{ |
static jmp_buf regs; |
# ifdef HAVE_BUILTIN_UNWIND_INIT |
register word * i = (word *) regs; |
/* This was suggested by Richard Henderson as the way to */ |
register ptr_t lim = (ptr_t)(regs) + (sizeof regs); |
/* force callee-save registers and register windows onto */ |
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/* the stack. */ |
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__builtin_unwind_init(); |
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# else /* !HAVE_BUILTIN_UNWIND_INIT */ |
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/* Generic code */ |
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/* The idea is due to Parag Patel at HP. */ |
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/* We're not sure whether he would like */ |
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/* to be he acknowledged for it or not. */ |
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jmp_buf regs; |
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register word * i = (word *) regs; |
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register ptr_t lim = (ptr_t)(regs) + (sizeof regs); |
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/* Setjmp on Sun 3s doesn't clear all of the buffer. */ |
/* Setjmp doesn't always clear all of the buffer. */ |
/* That tends to preserve garbage. Clear it. */ |
/* That tends to preserve garbage. Clear it. */ |
for (; (char *)i < lim; i++) { |
for (; (char *)i < lim; i++) { |
*i = 0; |
*i = 0; |
} |
} |
# if defined(POWERPC) || defined(MSWIN32) || defined(MSWINCE) \ |
# if defined(POWERPC) || defined(MSWIN32) || defined(MSWINCE) \ |
|| defined(UTS4) || defined(LINUX) |
|| defined(UTS4) || defined(LINUX) || defined(EWS4800) |
(void) setjmp(regs); |
(void) setjmp(regs); |
# else |
# else |
(void) _setjmp(regs); |
(void) _setjmp(regs); |
# endif |
# endif |
# if defined(SPARC) || defined(IA64) |
# endif /* !HAVE_BUILTIN_UNWIND_INIT */ |
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# if (defined(SPARC) && !defined(HAVE_BUILTIN_UNWIND_INIT)) \ |
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|| defined(IA64) |
/* On a register window machine, we need to save register */ |
/* On a register window machine, we need to save register */ |
/* contents on the stack for this to work. The setjmp */ |
/* contents on the stack for this to work. The setjmp */ |
/* is probably not needed on SPARC, since pointers are */ |
/* is probably not needed on SPARC, since pointers are */ |
Line 438 ptr_t cold_gc_frame; |
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Line 431 ptr_t cold_gc_frame; |
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word GC_save_regs_in_stack(); |
word GC_save_regs_in_stack(); |
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GC_save_regs_ret_val = GC_save_regs_in_stack(); |
GC_save_regs_ret_val = GC_save_regs_in_stack(); |
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/* On IA64 gcc, could use __builtin_ia64_flushrs() and */ |
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/* __builtin_ia64_flushrs(). The latter will be done */ |
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/* implicitly by __builtin_unwind_init() for gcc3.0.1 */ |
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/* and later. */ |
} |
} |
# endif |
# endif |
GC_push_current_stack(cold_gc_frame); |
GC_push_current_stack(cold_gc_frame); |
Line 479 ptr_t cold_gc_frame; |
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Line 476 ptr_t cold_gc_frame; |
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/* On IA64, we also need to flush register windows. But they end */ |
/* On IA64, we also need to flush register windows. But they end */ |
/* 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 |
/* We now implement this as a separate assembly file, since inline */ |
# ifdef __GNUC__ |
/* assembly code here doesn't work with either the Intel or HP */ |
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/* compilers. */ |
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# if 0 |
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# ifdef LINUX |
asm(" .text"); |
asm(" .text"); |
asm(" .psr abi64"); |
asm(" .psr abi64"); |
asm(" .psr lsb"); |
asm(" .psr lsb"); |
Line 497 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"); |
# else |
# endif /* LINUX */ |
void GC_save_regs_in_stack() { |
# if 0 /* Other alternatives that don't work on HP/UX */ |
asm(" flushrs"); |
word GC_save_regs_in_stack() { |
asm(" ;;"); |
# if USE_BUILTINS |
asm(" mov r8=ar.bsp"); |
__builtin_ia64_flushrs(); |
asm(" br.ret.sptk.few rp"); |
return __builtin_ia64_bsp(); |
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# else |
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# ifdef HPUX |
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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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# else |
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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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# endif |
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# endif |
} |
} |
# endif |
# endif |
# endif |
# endif |
Line 511 ptr_t cold_gc_frame; |
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Line 524 ptr_t cold_gc_frame; |
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/* returns arg. Stack clearing is crucial on SPARC, so we supply */ |
/* returns arg. Stack clearing is crucial on SPARC, so we supply */ |
/* an assembly version that's more careful. Assumes limit is hotter */ |
/* an assembly version that's more careful. Assumes limit is hotter */ |
/* than sp, and limit is 8 byte aligned. */ |
/* than sp, and limit is 8 byte aligned. */ |
#if defined(ASM_CLEAR_CODE) && !defined(THREADS) |
#if defined(ASM_CLEAR_CODE) |
#ifndef SPARC |
#ifndef SPARC |
--> fix it |
--> fix it |
#endif |
#endif |