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#if defined(__ppc64__)
#define MODE_CHOICE(x, y) y
#else
#define MODE_CHOICE(x, y) x
#endif
 
#define machine_choice  MODE_CHOICE(ppc7400,ppc64)
 
; Define some pseudo-opcodes for size-independent load & store of GPRs ...
#define lgu             MODE_CHOICE(lwzu, ldu)
#define lg              MODE_CHOICE(lwz,ld)
#define sg              MODE_CHOICE(stw,std)
#define sgu             MODE_CHOICE(stwu,stdu)
 
; ... and the size of GPRs and their storage indicator.
#define GPR_BYTES       MODE_CHOICE(4,8)
#define LOG2_GPR_BYTES  MODE_CHOICE(2,3)        /* log2(GPR_BYTES) */
#define g_long          MODE_CHOICE(long, quad) /* usage is ".g_long" */
 
; From the ABI doc: "Mac OS X ABI Function Call Guide" Version 2009-02-04.
#define LINKAGE_SIZE    MODE_CHOICE(24,48)
#define PARAM_AREA      MODE_CHOICE(32,64)
#define SAVED_LR_OFFSET MODE_CHOICE(8,16)       /* save position for lr */
 
; The whole stack frame **MUST** be 16byte-aligned.
#define SAVE_SIZE (LINKAGE_SIZE+PARAM_AREA)
 
#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
; We no longer need the pic symbol stub for Darwin >= 9.
#define BLGCP1  _GC_push_one
#undef WANT_STUB
#else
#define BLGCP1  L_GC_push_one$stub
#define WANT_STUB
#endif
 
        .machine machine_choice
 
; GC_push_regs function. Under some optimization levels GCC will clobber
; some of the non-volatile registers before we get a chance to save them
; therefore, this cannot be inline asm.
 
.text
        .align LOG2_GPR_BYTES
        .globl _GC_push_regs
_GC_push_regs:
 
    ; Prolog
        mflr r0
        sg r0,SAVED_LR_OFFSET(r1)
        sgu r1,-SAVE_SIZE(r1)
 
L_body:
    ; 'Push' r13-r31
        mr r3,r13
        bl BLGCP1
        mr r3,r14
        bl BLGCP1
        mr r3,r15
        bl BLGCP1
        mr r3,r16
        bl BLGCP1
        mr r3,r17
        bl BLGCP1
        mr r3,r18
        bl BLGCP1
        mr r3,r19
        bl BLGCP1
        mr r3,r20
        bl BLGCP1
        mr r3,r21
        bl BLGCP1
        mr r3,r22
        bl BLGCP1
        mr r3,r23
        bl BLGCP1
        mr r3,r24
        bl BLGCP1
        mr r3,r25
        bl BLGCP1
        mr r3,r26
        bl BLGCP1
        mr r3,r27
        bl BLGCP1
        mr r3,r28
        bl BLGCP1
        mr r3,r29
        bl BLGCP1
        mr r3,r30
        bl BLGCP1
        mr r3,r31
        bl BLGCP1
 
L_epilog:
    ; Epilog
        lg r0,SAVE_SIZE+SAVED_LR_OFFSET(r1)
        addi r1,r1,SAVE_SIZE
        mtlr r0
 
    ; Return
        blr
LFE0:
 
; eh frames, for those that want 'em.
 
#define EH_DATA_ALIGN_FACT MODE_CHOICE(0x7c,0x78)
#define EH_FRAME_OFFSET MODE_CHOICE(0x40,0x70)
 
        .section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
EH_frame1:
        .set L$set$0,LECIE1-LSCIE1
        .long L$set$0    ; Length of Common Information Entry
LSCIE1:
        .long   0        ; CIE Identifier Tag
        .byte   0x1     ; CIE Version
        .ascii "zR\0"   ; CIE Augmentation
        .byte   0x1     ; uleb128 0x1; CIE Code Alignment Factor
        .byte   EH_DATA_ALIGN_FACT      ; sleb128 -4/-8; CIE Data Alignment Factor
        .byte   0x41    ; CIE RA Column
        .byte   0x1     ; uleb128 0x1; Augmentation size
        .byte   0x10    ; FDE Encoding (pcrel)
        .byte   0xc     ; DW_CFA_def_cfa
        .byte   0x1     ; uleb128 0x1
        .byte   0        ; uleb128 0
        .align  LOG2_GPR_BYTES
LECIE1:
 
        .globl _GC_push_regs.eh
_GC_push_regs.eh:
LSFDE1:
        .set L$set$1,LEFDE1-LASFDE1
        .long L$set$1   ; FDE Length
LASFDE1:
        .long   LASFDE1-EH_frame1       ; FDE CIE offset
        .g_long _GC_push_regs-. ; FDE initial location
        .set L$set$2,LFE0-_GC_push_regs
        .g_long L$set$2 ; FDE address range
        .byte   0        ; uleb128 0; Augmentation size
        .byte   0x4     ; DW_CFA_advance_loc4
        .set L$set$3,L_body-_GC_push_regs
        .long L$set$3
        .byte   0xe     ; DW_CFA_def_cfa_offset
        .byte   EH_FRAME_OFFSET ; uleb128 0x40/0x70
        .byte   0x11    ; DW_CFA_offset_extended_sf
        .byte   0x41    ; uleb128 0x41
        .byte   0x7e    ; sleb128 -2
        .byte   0x4     ; DW_CFA_advance_loc4
        .set L$set$4,L_epilog-L_body
        .long L$set$4
        .byte   0xe     ; DW_CFA_def_cfa_offset
        .byte   0        ; uleb128 0
        .align  LOG2_GPR_BYTES
LEFDE1:
 
        .data
#ifdef WANT_STUB
; PIC stub stuff, generated by GCC
 
        .section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32
        .align LOG2_GPR_BYTES
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$_GC_push_one)
        mtlr r0
        lgu r12,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)(r11)
        mtctr r12
        bctr
 
        .data
        .lazy_symbol_pointer
L_GC_push_one$lazy_ptr:
        .indirect_symbol _GC_push_one
        .g_long dyld_stub_binding_helper
#endif

Line No.	Rev	Author	Line
1	721	jeremybenn	`#if defined(__ppc64__)`
2			`#define MODE_CHOICE(x, y) y`
3			`#else`
4			`#define MODE_CHOICE(x, y) x`
5			`#endif`
6
7			`#define machine_choice MODE_CHOICE(ppc7400,ppc64)`
8
9			`; Define some pseudo-opcodes for size-independent load & store of GPRs ...`
10			`#define lgu MODE_CHOICE(lwzu, ldu)`
11			`#define lg MODE_CHOICE(lwz,ld)`
12			`#define sg MODE_CHOICE(stw,std)`
13			`#define sgu MODE_CHOICE(stwu,stdu)`
14
15			`; ... and the size of GPRs and their storage indicator.`
16			`#define GPR_BYTES MODE_CHOICE(4,8)`
17			`#define LOG2_GPR_BYTES MODE_CHOICE(2,3) /* log2(GPR_BYTES) */`
18			`#define g_long MODE_CHOICE(long, quad) /* usage is ".g_long" */`
19
20			`; From the ABI doc: "Mac OS X ABI Function Call Guide" Version 2009-02-04.`
21			`#define LINKAGE_SIZE MODE_CHOICE(24,48)`
22			`#define PARAM_AREA MODE_CHOICE(32,64)`
23			`#define SAVED_LR_OFFSET MODE_CHOICE(8,16) /* save position for lr */`
24
25			`; The whole stack frame MUST be 16byte-aligned.`
26			`#define SAVE_SIZE (LINKAGE_SIZE+PARAM_AREA)`
27
28			`#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050`
29			`; We no longer need the pic symbol stub for Darwin >= 9.`
30			`#define BLGCP1 _GC_push_one`
31			`#undef WANT_STUB`
32			`#else`
33			`#define BLGCP1 L_GC_push_one$stub`
34			`#define WANT_STUB`
35			`#endif`
36
37			`.machine machine_choice`
38
39			`; GC_push_regs function. Under some optimization levels GCC will clobber`
40			`; some of the non-volatile registers before we get a chance to save them`
41			`; therefore, this cannot be inline asm.`
42
43			`.text`
44			`.align LOG2_GPR_BYTES`
45			`.globl _GC_push_regs`
46			`_GC_push_regs:`
47
48			`; Prolog`
49			`mflr r0`
50			`sg r0,SAVED_LR_OFFSET(r1)`
51			`sgu r1,-SAVE_SIZE(r1)`
52
53			`L_body:`
54			`; 'Push' r13-r31`
55			`mr r3,r13`
56			`bl BLGCP1`
57			`mr r3,r14`
58			`bl BLGCP1`
59			`mr r3,r15`
60			`bl BLGCP1`
61			`mr r3,r16`
62			`bl BLGCP1`
63			`mr r3,r17`
64			`bl BLGCP1`
65			`mr r3,r18`
66			`bl BLGCP1`
67			`mr r3,r19`
68			`bl BLGCP1`
69			`mr r3,r20`
70			`bl BLGCP1`
71			`mr r3,r21`
72			`bl BLGCP1`
73			`mr r3,r22`
74			`bl BLGCP1`
75			`mr r3,r23`
76			`bl BLGCP1`
77			`mr r3,r24`
78			`bl BLGCP1`
79			`mr r3,r25`
80			`bl BLGCP1`
81			`mr r3,r26`
82			`bl BLGCP1`
83			`mr r3,r27`
84			`bl BLGCP1`
85			`mr r3,r28`
86			`bl BLGCP1`
87			`mr r3,r29`
88			`bl BLGCP1`
89			`mr r3,r30`
90			`bl BLGCP1`
91			`mr r3,r31`
92			`bl BLGCP1`
93
94			`L_epilog:`
95			`; Epilog`
96			`lg r0,SAVE_SIZE+SAVED_LR_OFFSET(r1)`
97			`addi r1,r1,SAVE_SIZE`
98			`mtlr r0`
99
100			`; Return`
101			`blr`
102			`LFE0:`
103
104			`; eh frames, for those that want 'em.`
105
106			`#define EH_DATA_ALIGN_FACT MODE_CHOICE(0x7c,0x78)`
107			`#define EH_FRAME_OFFSET MODE_CHOICE(0x40,0x70)`
108
109			`.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support`
110			`EH_frame1:`
111			`.set L$set$0,LECIE1-LSCIE1`
112			`.long L$set$0 ; Length of Common Information Entry`
113			`LSCIE1:`
114			`.long 0 ; CIE Identifier Tag`
115			`.byte 0x1 ; CIE Version`
116			`.ascii "zR\0" ; CIE Augmentation`
117			`.byte 0x1 ; uleb128 0x1; CIE Code Alignment Factor`
118			`.byte EH_DATA_ALIGN_FACT ; sleb128 -4/-8; CIE Data Alignment Factor`
119			`.byte 0x41 ; CIE RA Column`
120			`.byte 0x1 ; uleb128 0x1; Augmentation size`
121			`.byte 0x10 ; FDE Encoding (pcrel)`
122			`.byte 0xc ; DW_CFA_def_cfa`
123			`.byte 0x1 ; uleb128 0x1`
124			`.byte 0 ; uleb128 0`
125			`.align LOG2_GPR_BYTES`
126			`LECIE1:`
127
128			`.globl _GC_push_regs.eh`
129			`_GC_push_regs.eh:`
130			`LSFDE1:`
131			`.set L$set$1,LEFDE1-LASFDE1`
132			`.long L$set$1 ; FDE Length`
133			`LASFDE1:`
134			`.long LASFDE1-EH_frame1 ; FDE CIE offset`
135			`.g_long _GC_push_regs-. ; FDE initial location`
136			`.set L$set$2,LFE0-_GC_push_regs`
137			`.g_long L$set$2 ; FDE address range`
138			`.byte 0 ; uleb128 0; Augmentation size`
139			`.byte 0x4 ; DW_CFA_advance_loc4`
140			`.set L$set$3,L_body-_GC_push_regs`
141			`.long L$set$3`
142			`.byte 0xe ; DW_CFA_def_cfa_offset`
143			`.byte EH_FRAME_OFFSET ; uleb128 0x40/0x70`
144			`.byte 0x11 ; DW_CFA_offset_extended_sf`
145			`.byte 0x41 ; uleb128 0x41`
146			`.byte 0x7e ; sleb128 -2`
147			`.byte 0x4 ; DW_CFA_advance_loc4`
148			`.set L$set$4,L_epilog-L_body`
149			`.long L$set$4`
150			`.byte 0xe ; DW_CFA_def_cfa_offset`
151			`.byte 0 ; uleb128 0`
152			`.align LOG2_GPR_BYTES`
153			`LEFDE1:`
154
155			`.data`
156			`#ifdef WANT_STUB`
157			`; PIC stub stuff, generated by GCC`
158
159			`.section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32`
160			`.align LOG2_GPR_BYTES`
161			`L_GC_push_one$stub:`
162			`.indirect_symbol _GC_push_one`
163			`mflr r0`
164			`bcl 20,31,L0$_GC_push_one`
165			`L0$_GC_push_one:`
166			`mflr r11`
167			`addis r11,r11,ha16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)`
168			`mtlr r0`
169			`lgu r12,lo16(L_GC_push_one$lazy_ptr-L0$_GC_push_one)(r11)`
170			`mtctr r12`
171			`bctr`
172
173			`.data`
174			`.lazy_symbol_pointer`
175			`L_GC_push_one$lazy_ptr:`
176			`.indirect_symbol _GC_push_one`
177			`.g_long dyld_stub_binding_helper`
178			`#endif`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [boehm-gc/] [powerpc_darwin_mach_dep.s] - Blame information for rev 838