aix_closure.S: Reorganize 64-bit code to match linux64_closure.S.
* src/powerpc/aix_closure.S: Reorganize 64-bit code to match
linux64_closure.S.
From-SVN: r155001
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David Edelsohn
David Edelsohn
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b75caae698
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2f2d73866b
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@ -1,3 +1,8 @@
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2009-12-04 David Edelsohn <edelsohn@gnu.org>
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* src/powerpc/aix_closure.S: Reorganize 64-bit code to match
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linux64_closure.S.
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2009-12-04 Uros Bizjak <ubizjak@gmail.com>
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PR libffi/41908
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@ -99,9 +99,23 @@ ffi_closure_ASM:
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.llong .ffi_closure_ASM, TOC[tc0], 0
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.csect .text[PR]
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.ffi_closure_ASM:
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/* we want to build up an area for the parameters passed */
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/* in registers (both floating point and integer) */
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/* we store gpr 3 to gpr 10 (aligned to 4)
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in the parents outgoing area */
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std r3, 48+(0*8)(r1)
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std r4, 48+(1*8)(r1)
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std r5, 48+(2*8)(r1)
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std r6, 48+(3*8)(r1)
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mflr r0
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std r7, 48+(4*8)(r1)
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std r8, 48+(5*8)(r1)
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std r9, 48+(6*8)(r1)
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std r10, 48+(7*8)(r1)
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std r0, 16(r1) /* save the return address */
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mflr r0 /* extract return address */
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std r0,16(r1) /* save the return address */
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/* 48 Bytes (Linkage Area) */
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/* 64 Bytes (params) */
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@ -110,23 +124,9 @@ ffi_closure_ASM:
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/* 8 Bytes (alignment) */
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/* 240 Bytes */
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stdu r1,-240(r1) /* skip over caller save area
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stdu r1, -240(r1) /* skip over caller save area
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keep stack aligned to 16 */
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/* we want to build up an area for the parameters passed */
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/* in registers (both floating point and integer) */
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/* we store gpr 3 to gpr 10 (aligned to 4)
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in the parents outgoing area */
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std r3, 288+(0*8)(r1)
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std r4, 288+(1*8)(r1)
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std r5, 288+(2*8)(r1)
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std r6, 288+(3*8)(r1)
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std r7, 288+(4*8)(r1)
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std r8, 288+(5*8)(r1)
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std r9, 288+(6*8)(r1)
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std r10, 288+(7*8)(r1)
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/* next save fpr 1 to fpr 13 (aligned to 8) */
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stfd f1, 128+(0*8)(r1)
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stfd f2, 128+(1*8)(r1)
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@ -144,16 +144,16 @@ ffi_closure_ASM:
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/* set up registers for the routine that actually does the work */
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/* get the context pointer from the trampoline */
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mr r3,r11
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mr r3, r11
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/* now load up the pointer to the result storage */
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addi r4,r1,112
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addi r4, r1, 112
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/* now load up the pointer to the saved gpr registers */
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addi r5,r1,288
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addi r5, r1, 288
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/* now load up the pointer to the saved fpr registers */
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addi r6,r1,128
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addi r6, r1, 128
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/* make the call */
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bl .ffi_closure_helper_DARWIN
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@ -165,88 +165,107 @@ ffi_closure_ASM:
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/* look up the proper starting point in table */
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/* by using return type as offset */
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addi r5,r1,112 /* get pointer to results area */
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ld r4,LC..60(2) /* get address of jump table */
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sldi r3,r3,2 /* now multiply return type by 4 */
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lwzx r3,r4,r3 /* get the contents of that table value */
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ld r4, LC..60(2) /* get address of jump table */
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sldi r3, r3, 4 /* now multiply return type by 16 */
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ld r0, 240+16(r1) /* load return address */
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add r3,r3,r4 /* add contents of table to table address */
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mtctr r3
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bctr /* jump to it */
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/* Each fragment must be exactly 16 bytes long (4 instructions).
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Align to 16 byte boundary for cache and dispatch efficiency. */
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.align 4
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L..60:
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.long L..44-L..60 /* FFI_TYPE_VOID */
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.long L..51-L..60 /* FFI_TYPE_INT */
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.long L..47-L..60 /* FFI_TYPE_FLOAT */
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.long L..46-L..60 /* FFI_TYPE_DOUBLE */
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.long L..45-L..60 /* FFI_TYPE_LONGDOUBLE */
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.long L..56-L..60 /* FFI_TYPE_UINT8 */
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.long L..55-L..60 /* FFI_TYPE_SINT8 */
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.long L..58-L..60 /* FFI_TYPE_UINT16 */
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.long L..57-L..60 /* FFI_TYPE_SINT16 */
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.long L..50-L..60 /* FFI_TYPE_UINT32 */
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.long L..51-L..60 /* FFI_TYPE_SINT32 */
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.long L..48-L..60 /* FFI_TYPE_UINT64 */
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.long L..48-L..60 /* FFI_TYPE_SINT64 */
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.long L..44-L..60 /* FFI_TYPE_STRUCT */
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.long L..48-L..60 /* FFI_TYPE_POINTER */
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/* case FFI_TYPE_VOID */
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mtlr r0
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addi r1, r1, 240
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blr
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nop
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/* case FFI_TYPE_INT */
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lwa r3, 112+4(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case long double */
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L..45:
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lfd f1,0(r5)
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lfd f2,8(r5)
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b L..44
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/* case FFI_TYPE_FLOAT */
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lfs f1, 112+0(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case double */
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L..46:
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lfd f1,0(r5)
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b L..44
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/* case FFI_TYPE_DOUBLE */
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lfd f1, 112+0(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case float */
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L..47:
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lfs f1,0(r5)
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b L..44
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/* case FFI_TYPE_LONGDOUBLE */
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lfd f1, 112+0(r1)
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mtlr r0
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lfd f2, 112+8(r1)
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b L..finish
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/* case long long / pointer */
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L..48:
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ld r3,0(r5)
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b L..44
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/* case FFI_TYPE_UINT8 */
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lbz r3, 112+7(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case uint32 */
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L..50:
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lwz r3,4(r5)
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b L..44
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/* case FFI_TYPE_SINT8 */
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lbz r3, 112+7(r1)
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mtlr r0
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extsb r3, r3
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b L..finish
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/* case int / sint32 */
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L..51:
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lwa r3,4(r5)
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b L..44
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/* case FFI_TYPE_UINT16 */
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lhz r3, 112+6(r1)
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mtlr r0
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L..finish:
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addi r1, r1, 240
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blr
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/* case signed int8 */
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L..55:
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lbz r3,7(r5)
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extsb r3,r3
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b L..44
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/* case FFI_TYPE_SINT16 */
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lha r3, 112+6(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case unsigned int8 */
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L..56:
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lbz r3,7(r5)
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b L..44
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/* case FFI_TYPE_UINT32 */
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lwz r3, 112+4(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case signed int16 */
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L..57:
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lha r3,6(r5)
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b L..44
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/* case FFI_TYPE_SINT32 */
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lwa r3, 112+4(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case unsigned int16 */
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L..58:
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lhz r3,6(r5)
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/* case FFI_TYPE_UINT64 */
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ld r3, 112+0(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case void / done */
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L..44:
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addi r1,r1,240 /* restore stack pointer */
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ld r0,16(r1) /* get return address */
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mtlr r0 /* reset link register */
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/* case FFI_TYPE_SINT64 */
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ld r3, 112+0(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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/* case FFI_TYPE_STRUCT */
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mtlr r0
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addi r1, r1, 240
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blr
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nop
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/* case FFI_TYPE_POINTER */
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ld r3, 112+0(r1)
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mtlr r0
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addi r1, r1, 240
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blr
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#else /* ! __64BIT__ */
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