mirror of git://gcc.gnu.org/git/gcc.git
68 lines
1.7 KiB
ArmAsm
68 lines
1.7 KiB
ArmAsm
! SPARCompiler 3.0 and later apparently no longer handles
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! asm outside functions. So we need a separate .s file
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! This is only set up for SunOS 5, not SunOS 4.
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! Assumes this is called before the stack contents are
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! examined.
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.seg "text"
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.globl GC_save_regs_in_stack
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.globl GC_push_regs
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GC_save_regs_in_stack:
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GC_push_regs:
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#if defined(__arch64__) || defined(__sparcv9)
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save %sp,-128,%sp
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flushw
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ret
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restore %sp,2047+128,%o0
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#else /* 32 bit SPARC */
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ta 0x3 ! ST_FLUSH_WINDOWS
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mov %sp,%o0
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retl
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nop
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#endif /* 32 bit SPARC */
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.GC_save_regs_in_stack_end:
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.size GC_save_regs_in_stack,.GC_save_regs_in_stack_end-GC_save_regs_in_stack
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.globl GC_clear_stack_inner
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GC_clear_stack_inner:
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#if defined(__arch64__) || defined(__sparcv9)
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mov %sp,%o2 ! Save sp
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add %sp,2047-8,%o3 ! p = sp+bias-8
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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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loop:
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stx %g0,[%o3] ! *(long *)p = 0
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cmp %o3,%o1
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bgu,pt %xcc, loop ! if (p > limit) goto loop
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add %o3,-8,%o3 ! p -= 8 (delay slot)
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retl
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mov %o2,%sp ! Restore sp., delay slot
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#else /* 32 bit SPARC */
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mov %sp,%o2 ! Save sp
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add %sp,-8,%o3 ! p = sp-8
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clr %g1 ! [g0,g1] = 0
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add %o1,-0x60,%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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loop:
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std %g0,[%o3] ! *(long long *)p = 0
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cmp %o3,%o1
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bgu loop ! if (p > limit) goto loop
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add %o3,-8,%o3 ! p -= 8 (delay slot)
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retl
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mov %o2,%sp ! Restore sp., delay slot
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#endif /* 32 bit SPARC */
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.GC_clear_stack_inner_end:
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.size GC_clear_stack_inner,.GC_clear_stack_inner_end-GC_clear_stack_inner
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