boehm-gc/powerpc_macosx_mach_dep.s

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   2 .text
   3
   4     .set   linkageArea,24
   5     .set   params,4
   6     .set   alignment,4
   7
   8     .set   spaceToSave,linkageArea+params+alignment
   9     .set   spaceToSave8,spaceToSave+8
  10
  11 ; Mark from machine registers that are saved by C compiler
  12     .globl  _GC_push_regs
  13 _GC_push_regs:
  14     ; PROLOG
  15     mflr    r0          ; get return address
  16     stw     r0,8(r1)    ; save return address
  17     stwu    r1,-spaceToSave(r1)   ; skip over caller save area
  18     ;
  19     mr      r3,r2         ; mark from r2. Well Im not really sure
  20                           ; that this is necessary or even the right
  21                           ; thing to do - at least it doesnt harm...
  22                           ; According to Apples docs it points to
  23                           ; the direct data area, whatever that is...
  24     bl      L_GC_push_one$stub
  25     mr      r3,r13        ; mark from r13-r31
  26     bl      L_GC_push_one$stub
  27     mr      r3,r14
  28     bl      L_GC_push_one$stub
  29     mr      r3,r15
  30     bl      L_GC_push_one$stub
  31     mr      r3,r16
  32     bl      L_GC_push_one$stub
  33     mr      r3,r17
  34     bl      L_GC_push_one$stub
  35     mr      r3,r18
  36     bl      L_GC_push_one$stub
  37     mr      r3,r19
  38     bl      L_GC_push_one$stub
  39     mr      r3,r20
  40     bl      L_GC_push_one$stub
  41     mr      r3,r21
  42     bl      L_GC_push_one$stub
  43     mr      r3,r22
  44     bl      L_GC_push_one$stub
  45     mr      r3,r23
  46     bl      L_GC_push_one$stub
  47     mr      r3,r24
  48     bl      L_GC_push_one$stub
  49     mr      r3,r25
  50     bl      L_GC_push_one$stub
  51     mr      r3,r26
  52     bl      L_GC_push_one$stub
  53     mr      r3,r27
  54     bl      L_GC_push_one$stub
  55     mr      r3,r28
  56     bl      L_GC_push_one$stub
  57     mr      r3,r29
  58     bl      L_GC_push_one$stub
  59     mr      r3,r30
  60     bl      L_GC_push_one$stub
  61     mr      r3,r31
  62     bl      L_GC_push_one$stub
  63     ; EPILOG
  64     lwz     r0,spaceToSave8(r1)   ; get return address back
  65     mtlr    r0    ; reset link register
  66     addic   r1,r1,spaceToSave   ; restore stack pointer
  67     blr
  68
  69 .data
  70 .picsymbol_stub
  71 L_GC_push_one$stub:
  72         .indirect_symbol _GC_push_one
  73         mflr r0
  74         bcl 20,31,L0$_GC_push_one
  75 L0$_GC_push_one:
  76         mflr r11
  77         addis r11,r11,ha16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)
  78         mtlr r0
  79         lwz r12,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)(r11)
  80         mtctr r12
  81         addi r11,r11,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)
  82         bctr
  83 .data
  84 .lazy_symbol_pointer
  85 L_GC_push_one$lazy_ptr:
  86         .indirect_symbol _GC_push_one
  87         .long dyld_stub_binding_helper
  88 .non_lazy_symbol_pointer
  89 L_GC_push_one$non_lazy_ptr:
  90         .indirect_symbol _GC_push_one
  91         .long 0
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