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executable file 96 lines (86 sloc) 2.525 kB
.text
.set linkageArea,24
.set params,4
.set alignment,4
.set spaceToSave,linkageArea+params+alignment
.set spaceToSave8,spaceToSave+8
; Mark from machine registers that are saved by C compiler
.globl _GC_push_regs
_GC_push_regs:
; PROLOG
mflr r0 ; get return address
stw r0,8(r1) ; save return address
stwu r1,-spaceToSave(r1) ; skip over caller save area
;
mr r3,r2 ; mark from r2. Well Im not really sure
; that this is necessary or even the right
; thing to do - at least it doesnt harm...
; According to Apples docs it points to
; the direct data area, whatever that is...
bl L_GC_push_one$stub
mr r3,r13 ; mark from r13-r31
bl L_GC_push_one$stub
mr r3,r14
bl L_GC_push_one$stub
mr r3,r15
bl L_GC_push_one$stub
mr r3,r16
bl L_GC_push_one$stub
mr r3,r17
bl L_GC_push_one$stub
mr r3,r18
bl L_GC_push_one$stub
mr r3,r19
bl L_GC_push_one$stub
mr r3,r20
bl L_GC_push_one$stub
mr r3,r21
bl L_GC_push_one$stub
mr r3,r22
bl L_GC_push_one$stub
mr r3,r23
bl L_GC_push_one$stub
mr r3,r24
bl L_GC_push_one$stub
mr r3,r25
bl L_GC_push_one$stub
mr r3,r26
bl L_GC_push_one$stub
mr r3,r27
bl L_GC_push_one$stub
mr r3,r28
bl L_GC_push_one$stub
mr r3,r29
bl L_GC_push_one$stub
mr r3,r30
bl L_GC_push_one$stub
mr r3,r31
bl L_GC_push_one$stub
; EPILOG
lwz r0,spaceToSave8(r1) ; get return address back
mtlr r0 ; reset link register
addic r1,r1,spaceToSave ; restore stack pointer
blr
.data
.picsymbol_stub
L_GC_push_one$stub:
.indirect_symbol _GC_push_one
mflr r0
bcl 20,31,L0$_GC_push_one
L0$_GC_push_one:
mflr r11
addis r11,r11,ha16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)
mtlr r0
lwz r12,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)(r11)
mtctr r12
addi r11,r11,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)
bctr
.data
.lazy_symbol_pointer
L_GC_push_one$lazy_ptr:
.indirect_symbol _GC_push_one
.long dyld_stub_binding_helper
.non_lazy_symbol_pointer
L_GC_push_one$non_lazy_ptr:
.indirect_symbol _GC_push_one
.long 0
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