From 181d8ded82d49d0133d9d6fd1631d9816c970bfa Mon Sep 17 00:00:00 2001 From: Matthias Benkard Date: Sat, 26 Jan 2008 12:06:34 +0100 Subject: Import libffi from PyObjC 1.3.7. darcs-hash:129bccb59266f997deac9b0353aea2d2d4049f92 --- libffi/src/powerpc/darwin.S | 225 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 225 insertions(+) create mode 100644 libffi/src/powerpc/darwin.S (limited to 'libffi/src/powerpc/darwin.S') diff --git a/libffi/src/powerpc/darwin.S b/libffi/src/powerpc/darwin.S new file mode 100644 index 0000000..2233d8a --- /dev/null +++ b/libffi/src/powerpc/darwin.S @@ -0,0 +1,225 @@ +#ifdef __ppc__ +/* ----------------------------------------------------------------------- + darwin.S - Copyright (c) 2000 John Hornkvist + + PowerPC Assembly glue. + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + ``Software''), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR + OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + ----------------------------------------------------------------------- */ + +#define LIBFFI_ASM +#include +#include +#define JUMPTARGET(name) name +#define L(x) x +.text + .align 2 +.globl _ffi_prep_args + +.text + .align 2 +.globl _ffi_call_DARWIN +.text + .align 2 +_ffi_call_DARWIN: +LFB0: + mr r12,r8 /* We only need r12 until the call, + so it doesn't have to be saved... */ +LFB1: + /* Save the old stack pointer as AP. */ + mr r8,r1 +LCFI0: + /* Allocate the stack space we need. */ + stwux r1,r1,r4 + + /* Save registers we use. */ + mflr r9 + + stw r28,-16(r8) + stw r29,-12(r8) + stw r30, -8(r8) + stw r31, -4(r8) + + stw r9, 8(r8) + stw r2, 20(r1) +LCFI1: + + /* Save arguments over call... */ + mr r31,r5 /* flags, */ + mr r30,r6 /* rvalue, */ + mr r29,r7 /* function address, */ + mr r28,r8 /* our AP. */ +LCFI2: + /* Call ffi_prep_args. */ + mr r4,r1 + li r9,0 + + mtctr r12 // r12 holds address of _ffi_prep_args + bctrl + lwz r2,20(r1) + + /* Now do the call. + Set up cr1 with bits 4-7 of the flags. */ + mtcrf 0x40,r31 + /* Get the address to call into CTR. */ + mtctr r29 + /* Load all those argument registers. + We have set up a nice stack frame, just load it into registers. */ + lwz r3, 20+(1*4)(r1) + lwz r4, 20+(2*4)(r1) + lwz r5, 20+(3*4)(r1) + lwz r6, 20+(4*4)(r1) + nop + lwz r7, 20+(5*4)(r1) + lwz r8, 20+(6*4)(r1) + lwz r9, 20+(7*4)(r1) + lwz r10,20+(8*4)(r1) + +L1: + /* Load all the FP registers. */ + bf 6,L2 // 2f + 0x18 + lfd f1,-16-(13*8)(r28) + lfd f2,-16-(12*8)(r28) + lfd f3,-16-(11*8)(r28) + lfd f4,-16-(10*8)(r28) + nop + lfd f5,-16-(9*8)(r28) + lfd f6,-16-(8*8)(r28) + lfd f7,-16-(7*8)(r28) + lfd f8,-16-(6*8)(r28) + nop + lfd f9,-16-(5*8)(r28) + lfd f10,-16-(4*8)(r28) + lfd f11,-16-(3*8)(r28) + lfd f12,-16-(2*8)(r28) + nop + lfd f13,-16-(1*8)(r28) + +L2: + mr r12,r29 /* Put the target address in r12 as specified. */ + mtctr r12 + nop + nop + /* Make the call. */ + bctrl + + /* Now, deal with the return value. */ + mtcrf 0x01,r31 + + bt 30,L(done_return_value) + bt 29,L(fp_return_value) + stw r3,0(r30) + bf 28,L(done_return_value) + stw r4,4(r30) + + /* Fall through... */ + +L(done_return_value): + /* Restore the registers we used and return. */ + lwz r9, 8(r28) + lwz r31, -4(r28) + mtlr r9 + lwz r30, -8(r28) + lwz r29,-12(r28) + lwz r28,-16(r28) + lwz r1,0(r1) + blr + +L(fp_return_value): + bf 28,L(float_return_value) + stfd f1,0(r30) + b L(done_return_value) +L(float_return_value): + stfs f1,0(r30) + b L(done_return_value) +LFE1: +/* END(_ffi_call_DARWIN) */ + +/* Provide a null definition of _ffi_call_AIX. */ +.text + .align 2 +.globl _ffi_call_AIX +.text + .align 2 +_ffi_call_AIX: + blr +/* END(_ffi_call_AIX) */ + +.data +.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms +EH_frame1: + .set L$set$0,LECIE1-LSCIE1 + .long L$set$0 ; Length of Common Information Entry +LSCIE1: + .long 0x0 ; CIE Identifier Tag + .byte 0x1 ; CIE Version + .ascii "zR\0" ; CIE Augmentation + .byte 0x1 ; uleb128 0x1; CIE Code Alignment Factor + .byte 0x7c ; sleb128 -4; CIE Data Alignment Factor + .byte 0x41 ; CIE RA Column + .byte 0x1 ; uleb128 0x1; Augmentation size + .byte 0x90 ; FDE Encoding (indirect pcrel) + .byte 0xc ; DW_CFA_def_cfa + .byte 0x1 ; uleb128 0x1 + .byte 0x0 ; uleb128 0x0 + .align 2 +LECIE1: +.globl _ffi_call_DARWIN.eh +_ffi_call_DARWIN.eh: +LSFDE1: + .set L$set$1,LEFDE1-LASFDE1 + .long L$set$1 ; FDE Length +LASFDE1: + .long LASFDE1-EH_frame1 ; FDE CIE offset + .long LLFB0$non_lazy_ptr-. ; FDE initial location + .set L$set$3,LFE1-LFB0 + .long L$set$3 ; FDE address range + .byte 0x0 ; uleb128 0x0; Augmentation size + .byte 0x4 ; DW_CFA_advance_loc4 + .set L$set$4,LCFI0-LFB1 + .long L$set$4 + .byte 0xd ; DW_CFA_def_cfa_register + .byte 0x08 ; uleb128 0x08 + .byte 0x4 ; DW_CFA_advance_loc4 + .set L$set$5,LCFI1-LCFI0 + .long L$set$5 + .byte 0x11 ; DW_CFA_offset_extended_sf + .byte 0x41 ; uleb128 0x41 + .byte 0x7e ; sleb128 -2 + .byte 0x9f ; DW_CFA_offset, column 0x1f + .byte 0x1 ; uleb128 0x1 + .byte 0x9e ; DW_CFA_offset, column 0x1e + .byte 0x2 ; uleb128 0x2 + .byte 0x9d ; DW_CFA_offset, column 0x1d + .byte 0x3 ; uleb128 0x3 + .byte 0x9c ; DW_CFA_offset, column 0x1c + .byte 0x4 ; uleb128 0x4 + .byte 0x4 ; DW_CFA_advance_loc4 + .set L$set$6,LCFI2-LCFI1 + .long L$set$6 + .byte 0xd ; DW_CFA_def_cfa_register + .byte 0x1c ; uleb128 0x1c + .align 2 +LEFDE1: +.data + .align 2 +LLFB0$non_lazy_ptr: + .long LFB0 +#endif -- cgit v1.2.3