/* look up the proper starting point in table */
/* by using return type as offset */
- ld r4, LC..60(2) /* get address of jump table */
- sldi r3, r3, 4 /* now multiply return type by 16 */
- ld r0, 240+16(r1) /* load return address */
- add r3,r3,r4 /* add contents of table to table address */
- mtctr r3
+ ld r4, LC..60(2) /* get address of jump table */
+ sldi r3, r3, 4 /* now multiply return type by 16 */
+ ld r0, 240+16(r1) /* load return address */
+ add r3, r3, r4 /* add contents of table to table address */
+ mtctr r3
bctr /* jump to it */
/* Each fragment must be exactly 16 bytes long (4 instructions).
.long .ffi_closure_ASM, TOC[tc0], 0
.csect .text[PR]
.ffi_closure_ASM:
+/* we want to build up an area for the parameters passed */
+/* in registers (both floating point and integer) */
+
+ /* we store gpr 3 to gpr 10 (aligned to 4)
+ in the parents outgoing area */
+ stw r3, 24+(0*4)(r1)
+ stw r4, 24+(1*4)(r1)
+ stw r5, 24+(2*4)(r1)
+ stw r6, 24+(3*4)(r1)
+ mflr r0
- mflr r0 /* extract return address */
- stw r0, 8(r1) /* save the return address */
+ stw r7, 24+(4*4)(r1)
+ stw r8, 24+(5*4)(r1)
+ stw r9, 24+(6*4)(r1)
+ stw r10, 24+(7*4)(r1)
+ stw r0, 8(r1)
/* 24 Bytes (Linkage Area) */
/* 32 Bytes (params) */
- /* 104 Bytes (13*8 from FPR) */
/* 16 Bytes (result) */
+ /* 104 Bytes (13*8 from FPR) */
/* 176 Bytes */
- stwu r1,-176(r1) /* skip over caller save area
- keep stack aligned to 16 */
-
-/* we want to build up an area for the parameters passed */
-/* in registers (both floating point and integer) */
-
- /* we store gpr 3 to gpr 10 (aligned to 4)
- in the parents outgoing area */
- stw r3, 200(r1)
- stw r4, 204(r1)
- stw r5, 208(r1)
- stw r6, 212(r1)
- stw r7, 216(r1)
- stw r8, 220(r1)
- stw r9, 224(r1)
- stw r10, 228(r1)
+ stwu r1, -176(r1) /* skip over caller save area
+ keep stack aligned to 16 */
/* next save fpr 1 to fpr 13 (aligned to 8) */
- stfd f1, 56(r1)
- stfd f2, 64(r1)
- stfd f3, 72(r1)
- stfd f4, 80(r1)
- stfd f5, 88(r1)
- stfd f6, 96(r1)
- stfd f7, 104(r1)
- stfd f8, 112(r1)
- stfd f9, 120(r1)
- stfd f10, 128(r1)
- stfd f11, 136(r1)
- stfd f12, 144(r1)
- stfd f13, 152(r1)
+ stfd f1, 72+(0*8)(r1)
+ stfd f2, 72+(1*8)(r1)
+ stfd f3, 72+(2*8)(r1)
+ stfd f4, 72+(3*8)(r1)
+ stfd f5, 72+(4*8)(r1)
+ stfd f6, 72+(5*8)(r1)
+ stfd f7, 72+(6*8)(r1)
+ stfd f8, 72+(7*8)(r1)
+ stfd f9, 72+(8*8)(r1)
+ stfd f10, 72+(9*8)(r1)
+ stfd f11, 72+(10*8)(r1)
+ stfd f12, 72+(11*8)(r1)
+ stfd f13, 72+(12*8)(r1)
/* set up registers for the routine that actually does the work */
/* get the context pointer from the trampoline */
- mr r3,r11
+ mr r3, r11
/* now load up the pointer to the result storage */
- addi r4,r1,160
+ addi r4, r1, 56
/* now load up the pointer to the saved gpr registers */
- addi r5,r1,200
+ addi r5, r1, 200
/* now load up the pointer to the saved fpr registers */
- addi r6,r1,56
+ addi r6, r1, 72
/* make the call */
bl .ffi_closure_helper_DARWIN
/* look up the proper starting point in table */
/* by using return type as offset */
- addi r5,r1,160 /* get pointer to results area */
- lwz r4,LC..60(2) /* get address of jump table */
- slwi r3,r3,2 /* now multiply return type by 4 */
- lwzx r3,r4,r3 /* get the contents of that table value */
- add r3,r3,r4 /* add contents of table to table address */
- mtctr r3
+ lwz r4, LC..60(2) /* get address of jump table */
+ slwi r3, r3, 4 /* now multiply return type by 4 */
+ lwz r0, 176+8(r1) /* load return address */
+ lwzx r3, r4, r3 /* get the contents of that table value */
+ mtctr r3
bctr /* jump to it */
+/* Each fragment must be exactly 16 bytes long (4 instructions).
+ Align to 16 byte boundary for cache and dispatch efficiency. */
+ .align 4
+
L..60:
- .long L..44-L..60 /* FFI_TYPE_VOID */
- .long L..50-L..60 /* FFI_TYPE_INT */
- .long L..47-L..60 /* FFI_TYPE_FLOAT */
- .long L..46-L..60 /* FFI_TYPE_DOUBLE */
- .long L..45-L..60 /* FFI_TYPE_LONGDOUBLE */
- .long L..56-L..60 /* FFI_TYPE_UINT8 */
- .long L..55-L..60 /* FFI_TYPE_SINT8 */
- .long L..58-L..60 /* FFI_TYPE_UINT16 */
- .long L..57-L..60 /* FFI_TYPE_SINT16 */
- .long L..50-L..60 /* FFI_TYPE_UINT32 */
- .long L..50-L..60 /* FFI_TYPE_SINT32 */
- .long L..48-L..60 /* FFI_TYPE_UINT64 */
- .long L..48-L..60 /* FFI_TYPE_SINT64 */
- .long L..44-L..60 /* FFI_TYPE_STRUCT */
- .long L..50-L..60 /* FFI_TYPE_POINTER */
-
-
-/* case long double */
-L..45:
- lfd f1,0(r5)
- lfd f2,8(r5)
- b L..44
-
-/* case double */
-L..46:
- lfd f1,0(r5)
- b L..44
-
-/* case float */
-L..47:
- lfs f1,0(r5)
- b L..44
-
-/* case long long */
-L..48:
- lwz r3,0(r5)
- lwz r4,4(r5)
- b L..44
-
-/* case default / int32 / pointer */
-L..50:
- lwz r3,0(r5)
- b L..44
-
-/* case signed int8 */
-L..55:
- lbz r3,3(r5)
- extsb r3,r3
- b L..44
-
-/* case unsigned int8 */
-L..56:
- lbz r3,3(r5)
- b L..44
-
-/* case signed int16 */
-L..57:
- lha r3,2(r5)
- b L..44
-
-/* case unsigned int16 */
-L..58:
- lhz r3,2(r5)
-
-/* case void / done */
-L..44:
- addi r1,r1,176 /* restore stack pointer */
- lwz r0,8(r1) /* get return address */
- mtlr r0 /* reset link register */
+/* case FFI_TYPE_VOID */
+ mtlr r0
+ addi r1, r1, 176
+ blr
+ nop
+
+/* case FFI_TYPE_INT */
+ lwz r3, 56+0(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_FLOAT */
+ lfs f1, 56+0(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_DOUBLE */
+ lfd f1, 56+0(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_LONGDOUBLE */
+ lfd f1, 56+0(r1)
+ mtlr r0
+ lfd f2, 56+8(r1)
+ b L..finish
+
+/* case FFI_TYPE_UINT8 */
+ lbz r3, 56+3(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_SINT8 */
+ lbz r3, 56+3(r1)
+ mtlr r0
+ extsb r3, r3
+ b L..finish
+
+/* case FFI_TYPE_UINT16 */
+ lhz r3, 56+2(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_SINT16 */
+ lha r3, 56+2(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_UINT32 */
+ lwz r3, 56+0(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_SINT32 */
+ lwz r3, 56+0(r1)
+ mtlr r0
+ addi r1, r1, 176
+ blr
+
+/* case FFI_TYPE_UINT64 */
+ lwz r3, 56+0(r1)
+ mtlr r0
+ lwz r4, 56+4(r1)
+ b L..finish
+
+/* case FFI_TYPE_SINT64 */
+ lwz r3, 56+0(r1)
+ mtlr r0
+ lwz r4, 56+4(r1)
+ b L..finish
+
+/* case FFI_TYPE_STRUCT */
+ mtlr r0
+ addi r1, r1, 176
+ blr
+ nop
+
+/* case FFI_TYPE_POINTER */
+ lwz r3, 56+0(r1)
+ mtlr r0
+L..finish:
+ addi r1, r1, 176
blr
#endif
/* END(ffi_closure_ASM) */
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