OpenXM_contrib2/asir2000/gc/mach_dep.c - diff

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Diff for /OpenXM_contrib2/asir2000/gc/mach_dep.c between version 1.4 and 1.7

version 1.4, 2001/04/20 07:39:19

version 1.7, 2003/06/24 05:11:33

Line 74 asm static void PushMacRegisters()

/* on your architecture. Run the test_setjmp program to see whether */

/* there is any chance it will work. */

#ifndef USE_GENERIC_PUSH_REGS

#if !defined(USE_GENERIC_PUSH_REGS) && !defined(USE_ASM_PUSH_REGS)

#undef HAVE_PUSH_REGS

void GC_push_regs()

{

# ifdef RT

# endif

# if defined(MIPS) && defined(LINUX)

/* I'm not sure whether this has actually been tested. */

# define call_push(x) asm("move $4," x ";"); asm("jal GC_push_one")

call_push("$2");

call_push("$3");

call_push("$16");

call_push("$17");

call_push("$18");

call_push("$19");

call_push("$20");

call_push("$21");

call_push("$22");

call_push("$23");

call_push("$30");

# undef call_push

# endif /* MIPS && LINUX */

# ifdef VAX

/* VAX - generic code below does not work under 4.2 */

/* r1 through r5 are caller save, and therefore */

Line 108 void GC_push_regs()

Line 92 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# endif

# if defined(M68K) && (defined(SUNOS4) || defined(NEXT))

/* M68K SUNOS - could be replaced by generic code */

Line 130 void GC_push_regs()

Line 115 void GC_push_regs()

asm("movl d7,sp@"); asm("jbsr _GC_push_one");

asm("addqw #0x4,sp"); /* put stack back where it was */

# define HAVE_PUSH_REGS

# endif

# if defined(M68K) && defined(HP)

Line 152 void GC_push_regs()

Line 138 void GC_push_regs()

asm("mov.l %d7,(%sp)"); asm("jsr _GC_push_one");

asm("addq.w &0x4,%sp"); /* put stack back where it was */

# define HAVE_PUSH_REGS

# endif /* M68K HP */

# if defined(M68K) && defined(AMIGA)

Line 175 void GC_push_regs()

Line 162 void GC_push_regs()

asm("mov.l %d7,(%sp)"); asm("jsr _GC_push_one");

asm("addq.w &0x4,%sp"); /* put stack back where it was */

# define HAVE_PUSH_REGS

# else /* !__GNUC__ */

GC_push_one(getreg(REG_A2));

GC_push_one(getreg(REG_A3));

Line 191 void GC_push_regs()

Line 179 void GC_push_regs()

GC_push_one(getreg(REG_D5));

GC_push_one(getreg(REG_D6));

GC_push_one(getreg(REG_D7));

# define HAVE_PUSH_REGS

# endif /* !__GNUC__ */

# endif /* AMIGA */

Line 213 void GC_push_regs()

Line 202 void GC_push_regs()

PushMacReg(d7);

add.w #4,sp ; fix stack.

}

# define HAVE_PUSH_REGS

# undef PushMacReg

# endif /* THINK_C */

# if defined(__MWERKS__)

PushMacRegisters();

# define HAVE_PUSH_REGS

# endif /* __MWERKS__ */

# endif /* MACOS */

Line 228 void GC_push_regs()

Line 219 void GC_push_regs()

&& !(defined(NETBSD) && defined(__ELF__)) \

&& !(defined(OPENBSD) && defined(__ELF__)) \

&& !(defined(BEOS) && defined(__ELF__)) \

&& !defined(DOS4GW)

&& !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 */

Line 239 void GC_push_regs()

Line 230 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# 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(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. */

Line 259 void GC_push_regs()

Line 253 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# endif

# if ( defined(I386) && defined(BEOS) && defined(__ELF__) )

Line 270 void GC_push_regs()

Line 265 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# endif

# if defined(I386) && defined(MSWIN32) && !defined(__MINGW32__) \

Line 296 void GC_push_regs()

Line 292 void GC_push_regs()

__asm push edi

__asm call GC_push_one

__asm add esp,4

# define HAVE_PUSH_REGS

# endif

# if defined(I386) && (defined(SVR4) || defined(SCO) || defined(SCO_ELF))

Line 307 void GC_push_regs()

Line 304 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# endif

# ifdef NS32K

Line 315 void GC_push_regs()

Line 313 void GC_push_regs()

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");

# define HAVE_PUSH_REGS

# endif

# if defined(SPARC)

{

GC_save_regs_ret_val = GC_save_regs_in_stack();

word GC_save_regs_in_stack();

# define HAVE_PUSH_REGS

GC_save_regs_ret_val = GC_save_regs_in_stack();

}

# endif

# ifdef RT

Line 338 void GC_push_regs()

Line 334 void GC_push_regs()

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);

# define HAVE_PUSH_REGS

# endif

# if defined(M68K) && defined(SYSV)

Line 361 void GC_push_regs()

Line 358 void GC_push_regs()

asm("movl %d7,%sp@"); asm("jbsr GC_push_one");

asm("addqw #0x4,%sp"); /* put stack back where it was */

# define HAVE_PUSH_REGS

# else /* !__GNUC__*/

asm("subq.w &0x4,%sp"); /* allocate word on top of stack */

Line 378 void GC_push_regs()

Line 376 void GC_push_regs()

asm("mov.l %d7,(%sp)"); asm("jsr GC_push_one");

asm("addq.w &0x4,%sp"); /* put stack back where it was */

# define HAVE_PUSH_REGS

# endif /* !__GNUC__ */

# endif /* M68K/SYSV */

Line 387 void GC_push_regs()

Line 386 void GC_push_regs()

extern int *__libc_stack_end;

GC_push_all_stack (sp, __libc_stack_end);

# define HAVE_PUSH_REGS

/* Isn't this redundant with the code to push the stack? */

}

# endif

/* other machines... */

# if !(defined M68K) && !(defined VAX) && !(defined RT)

# if !defined(HAVE_PUSH_REGS)

# if !(defined SPARC) && !(defined I386) && !(defined NS32K)

--> We just generated an empty GC_push_regs, which

# if !defined(POWERPC) && !defined(UTS4)

--> is almost certainly broken. Try defining

# if !defined(PJ) && !(defined(MIPS) && defined(LINUX))

--> USE_GENERIC_PUSH_REGS instead.

--> bad news <--

# endif

}

#endif /* !USE_GENERIC_PUSH_REGS */

#endif /* !USE_GENERIC_PUSH_REGS && !USE_ASM_PUSH_REGS */

#if defined(USE_GENERIC_PUSH_REGS)

void GC_generic_push_regs(cold_gc_frame)

ptr_t cold_gc_frame;

{

/* 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. */

{

static jmp_buf regs;

# 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;

/* 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. */

for (; (char *)i < lim; i++) {

*i = 0;

}

# if defined(POWERPC) || defined(MSWIN32) || defined(MSWINCE) \

|| defined(UTS4) || defined(LINUX)

|| defined(UTS4) || defined(LINUX) || defined(EWS4800)

(void) setjmp(regs);

# else

(void) _setjmp(regs);

# endif

# if defined(SPARC) || defined(IA64)

# 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 */

Line 435 ptr_t cold_gc_frame;

Line 440 ptr_t cold_gc_frame;

/* 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);

Line 449 ptr_t cold_gc_frame;

Line 456 ptr_t cold_gc_frame;

/* the stack. Return sp. */

# ifdef SPARC

asm(" .seg \"text\"");

# ifdef SVR4

# if defined(SVR4) || defined(NETBSD)

asm(" .globl GC_save_regs_in_stack");

asm("GC_save_regs_in_stack:");

asm(" .type GC_save_regs_in_stack,#function");

Line 479 ptr_t cold_gc_frame;

Line 486 ptr_t cold_gc_frame;

/* 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. */

# 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 */

/* compilers. */

# if 0

# ifdef LINUX

asm(" .text");

asm(" .psr abi64");

asm(" .psr lsb");

Line 497 ptr_t cold_gc_frame;

Line 507 ptr_t cold_gc_frame;

asm(" mov r8=ar.bsp");

asm(" br.ret.sptk.few rp");

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();

# 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

Line 511 ptr_t cold_gc_frame;

Line 534 ptr_t cold_gc_frame;

/* 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) && !defined(THREADS)

#if defined(ASM_CLEAR_CODE)

#ifndef SPARC

--> fix it

#endif

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