[thirdparty/gcc.git] / boehm-gc / sparc_netbsd_mach_dep.s

!	SPARCompiler 3.0 and later apparently no longer handles
!	asm outside functions.  So we need a separate .s file
!	This is only set up for SunOS 4.
!	Assumes this is called before the stack contents are
!	examined.

#include "machine/asm.h"

	.seg 	"text"
	.globl	_C_LABEL(GC_save_regs_in_stack)
	.globl 	_C_LABEL(GC_push_regs)
_C_LABEL(GC_save_regs_in_stack):
_C_LABEL(GC_push_regs):
	ta	0x3   ! ST_FLUSH_WINDOWS
	mov	%sp,%o0
	retl
	nop
	
	.globl	_C_LABEL(GC_clear_stack_inner)
_C_LABEL(GC_clear_stack_inner):
	mov	%sp,%o2		! Save sp
	add	%sp,-8,%o3	! p = sp-8
	clr	%g1		! [g0,g1] = 0
	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.
loop:
	std	%g0,[%o3]	! *(long long *)p = 0
	cmp	%o3,%o1
	bgu	loop		! if (p > limit) goto loop
	add	%o3,-8,%o3	! p -= 8 (delay slot)
	retl
	mov	%o2,%sp		! Restore sp., delay slot
Commit	Line	Data
f54d4287 BM	1	! SPARCompiler 3.0 and later apparently no longer handles
	2	! asm outside functions. So we need a separate .s file
	3	! This is only set up for SunOS 4.
	4	! Assumes this is called before the stack contents are
	5	! examined.
	6
	7	#include "machine/asm.h"
	8
	9	.seg "text"
	10	.globl _C_LABEL(GC_save_regs_in_stack)
	11	.globl _C_LABEL(GC_push_regs)
	12	_C_LABEL(GC_save_regs_in_stack):
	13	_C_LABEL(GC_push_regs):
	14	ta 0x3 ! ST_FLUSH_WINDOWS
	15	mov %sp,%o0
	16	retl
	17	nop
	18
	19	.globl _C_LABEL(GC_clear_stack_inner)
	20	_C_LABEL(GC_clear_stack_inner):
	21	mov %sp,%o2 ! Save sp
	22	add %sp,-8,%o3 ! p = sp-8
	23	clr %g1 ! [g0,g1] = 0
	24	add %o1,-0x60,%sp ! Move sp out of the way,
	25	! so that traps still work.
	26	! Includes some extra words
	27	! so we can be sloppy below.
	28	loop:
	29	std %g0,[%o3] ! (long long )p = 0
	30	cmp %o3,%o1
	31	bgu loop ! if (p > limit) goto loop
	32	add %o3,-8,%o3 ! p -= 8 (delay slot)
	33	retl
	34	mov %o2,%sp ! Restore sp., delay slot