mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-25 13:29:35 +08:00
67 lines
1.8 KiB
ArmAsm
67 lines
1.8 KiB
ArmAsm
.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 I'm not really sure
|
|
; that this is necessary or even the right
|
|
; thing to do - at least it doesn't harm...
|
|
; According to Apple's docs it points to
|
|
; the direct data area, whatever that is...
|
|
bl _GC_push_one
|
|
mr r3,r13 ; mark from r13-r31
|
|
bl _GC_push_one
|
|
mr r3,r14
|
|
bl _GC_push_one
|
|
mr r3,r15
|
|
bl _GC_push_one
|
|
mr r3,r16
|
|
bl _GC_push_one
|
|
mr r3,r17
|
|
bl _GC_push_one
|
|
mr r3,r18
|
|
bl _GC_push_one
|
|
mr r3,r19
|
|
bl _GC_push_one
|
|
mr r3,r20
|
|
bl _GC_push_one
|
|
mr r3,r21
|
|
bl _GC_push_one
|
|
mr r3,r22
|
|
bl _GC_push_one
|
|
mr r3,r23
|
|
bl _GC_push_one
|
|
mr r3,r24
|
|
bl _GC_push_one
|
|
mr r3,r25
|
|
bl _GC_push_one
|
|
mr r3,r26
|
|
bl _GC_push_one
|
|
mr r3,r27
|
|
bl _GC_push_one
|
|
mr r3,r28
|
|
bl _GC_push_one
|
|
mr r3,r29
|
|
bl _GC_push_one
|
|
mr r3,r30
|
|
bl _GC_push_one
|
|
mr r3,r31
|
|
bl _GC_push_one
|
|
; EPILOG
|
|
lwz r0,spaceToSave8(r1) ; get return address back
|
|
mtlr r0 ; reset link register
|
|
addic r1,r1,spaceToSave ; restore stack pointer
|
|
blr
|