# define _longjmp(b,v) longjmp(b,v)
# endif
# ifdef AMIGA
-# include <dos.h>
+# ifndef __GNUC__
+# include <dos/dos.h>
+# else
+# include <machine/reg.h>
+# endif
# endif
#if defined(__MWERKS__) && !defined(POWERPC)
#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
+
+# 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 */
asm("addq.w &0x4,%sp"); /* put stack back where it was */
# endif /* M68K HP */
-# ifdef AMIGA
- /* AMIGA - could be replaced by generic code */
- /* a0, a1, d0 and d1 are caller save */
+# 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));
GC_push_one(getreg(REG_A4));
GC_push_one(getreg(REG_D5));
GC_push_one(getreg(REG_D6));
GC_push_one(getreg(REG_D7));
-# endif
+# endif /* !__GNUC__ */
+# endif /* AMIGA */
# if defined(M68K) && defined(MACOS)
# if defined(THINK_C)
# endif /* __MWERKS__ */
# endif /* MACOS */
-# if defined(I386) &&!defined(OS2) &&!defined(SVR4) &&!defined(MSWIN32) \
- && !defined(SCO) && !defined(SCO_ELF) && !(defined(LINUX) \
- && defined(__ELF__)) && !defined(DOS4GW) && !defined(FREEBSD)
+# 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(DOS4GW)
/* 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 %ebx"); asm("call _GC_push_one"); asm("addl $4,%esp");
# endif
-# if defined(I386) && (defined(LINUX) || defined(FREEBSD)) && defined(__ELF__)
- /* This is modified for Linux/FreeBSD with ELF (Note: _ELF_ only) */
- 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");
+# if ( defined(I386) && defined(LINUX) && defined(__ELF__) ) \
+ || ( defined(I386) && defined(FREEBSD) && defined(__ELF__) )
+
+ /* 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(MSWIN32) && !defined(USE_GENERIC)
+# if defined(I386) && defined(MSWIN32) && !defined(__MINGW32__) \
+ && !defined(USE_GENERIC)
/* I386 code, Microsoft variant */
__asm push eax
__asm call GC_push_one
asm ("movd r7, tos"); asm ("bsr ?_GC_push_one"); asm ("adjspb $-4");
# endif
-# ifdef SPARC
+# if defined(SPARC)
{
word GC_save_regs_in_stack();
- /* generic code will not work */
- (void)GC_save_regs_in_stack();
+ GC_save_regs_ret_val = GC_save_regs_in_stack();
}
# endif
# 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(HP_PA) || defined(M88K) || defined(POWERPC) || (defined(I386) && (defined(OS2) || defined(USE_GENERIC))) || defined(UTS4)
+#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 */
for (; (char *)i < lim; i++) {
*i = 0;
}
-# if defined(POWERPC) || defined(MSWIN32) || defined(UTS4)
+# if defined(POWERPC) || defined(MSWIN32) || defined(UTS4) || defined(LINUX)
(void) setjmp(regs);
# else
(void) _setjmp(regs);
# endif
- GC_push_all_stack((ptr_t)regs, lim);
+# if defined(SPARC) || 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();
+ }
+# endif
+ GC_push_current_stack(cold_gc_frame);
}
-# endif
-# 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(HP_PA) && !defined(M88K) && !defined(POWERPC)
-# if !defined(UTS4) && !defined(PJ)
- --> bad news <--
-# endif
-# endif
-# endif
-# endif
}
+#endif /* USE_GENERIC_PUSH_REGS */
/* On register window machines, we need a way to force registers into */
/* the stack. Return sp. */
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(" mov %sp,%o0");
asm(" retl");
- asm(" nop");
+ 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
# 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. */
+# ifdef IA64
+ 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
/* GC_clear_stack_inner(arg, limit) clears stack area up to limit and */
/* returns arg. Stack clearing is crucial on SPARC, so we supply */
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 %o3,-8,%o3"); /* p -= 8 (delay slot) */
asm("retl");
asm("mov %o2,%sp"); /* Restore sp., delay slot */
+#endif
/* First argument = %o0 = return value */
# ifdef SVR4
asm(" .GC_clear_stack_inner_end:");
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