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/sysv.S | 191 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 191 insertions(+) create mode 100644 libffi/src/powerpc/sysv.S (limited to 'libffi/src/powerpc/sysv.S') diff --git a/libffi/src/powerpc/sysv.S b/libffi/src/powerpc/sysv.S new file mode 100644 index 0000000..a7aaa3f --- /dev/null +++ b/libffi/src/powerpc/sysv.S @@ -0,0 +1,191 @@ +/* ----------------------------------------------------------------------- + sysv.h - Copyright (c) 1998 Geoffrey Keating + + PowerPC Assembly glue. + + $Id: sysv.S,v 1.1.1.1 1998/11/29 16:48:16 green Exp $ + + 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 +#include + +#ifndef __powerpc64__ + .globl ffi_prep_args_SYSV +ENTRY(ffi_call_SYSV) +.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) +.LCFI1: + stw %r29,-12(%r8) +.LCFI2: + stw %r30, -8(%r8) +.LCFI3: + stw %r31, -4(%r8) +.LCFI4: + stw %r9, 4(%r8) +.LCFI5: + + /* Save arguments over call... */ + mr %r31,%r5 /* flags, */ + mr %r30,%r6 /* rvalue, */ + mr %r29,%r7 /* function address, */ + mr %r28,%r8 /* our AP. */ +.LCFI6: + + /* Call ffi_prep_args_SYSV. */ + mr %r4,%r1 + bl JUMPTARGET(ffi_prep_args_SYSV) + + /* 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. */ + lwz %r3,-16-(8*4)(%r28) + lwz %r4,-16-(7*4)(%r28) + lwz %r5,-16-(6*4)(%r28) + lwz %r6,-16-(5*4)(%r28) + bf- 5,1f + nop + lwz %r7,-16-(4*4)(%r28) + lwz %r8,-16-(3*4)(%r28) + lwz %r9,-16-(2*4)(%r28) + lwz %r10,-16-(1*4)(%r28) + nop +1: + + /* Load all the FP registers. */ + bf- 6,2f + lfd %f1,-16-(8*4)-(8*8)(%r28) + lfd %f2,-16-(8*4)-(7*8)(%r28) + lfd %f3,-16-(8*4)-(6*8)(%r28) + lfd %f4,-16-(8*4)-(5*8)(%r28) + nop + lfd %f5,-16-(8*4)-(4*8)(%r28) + lfd %f6,-16-(8*4)-(3*8)(%r28) + lfd %f7,-16-(8*4)-(2*8)(%r28) + lfd %f8,-16-(8*4)-(1*8)(%r28) +2: + + /* 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, 4(%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_SYSV) + + .section ".eh_frame",EH_FRAME_FLAGS,@progbits +.Lframe1: + .4byte .LECIE1-.LSCIE1 /* Length of Common Information Entry */ +.LSCIE1: + .4byte 0x0 /* CIE Identifier Tag */ + .byte 0x1 /* CIE Version */ +#if defined _RELOCATABLE || defined __PIC__ + .ascii "zR\0" /* CIE Augmentation */ +#else + .ascii "\0" /* CIE Augmentation */ +#endif + .uleb128 0x1 /* CIE Code Alignment Factor */ + .sleb128 -4 /* CIE Data Alignment Factor */ + .byte 0x41 /* CIE RA Column */ +#if defined _RELOCATABLE || defined __PIC__ + .uleb128 0x1 /* Augmentation size */ + .byte 0x1b /* FDE Encoding (pcrel sdata4) */ +#endif + .byte 0xc /* DW_CFA_def_cfa */ + .uleb128 0x1 + .uleb128 0x0 + .align 2 +.LECIE1: +.LSFDE1: + .4byte .LEFDE1-.LASFDE1 /* FDE Length */ +.LASFDE1: + .4byte .LASFDE1-.Lframe1 /* FDE CIE offset */ +#if defined _RELOCATABLE || defined __PIC__ + .4byte .LFB1-. /* FDE initial location */ +#else + .4byte .LFB1 /* FDE initial location */ +#endif + .4byte .LFE1-.LFB1 /* FDE address range */ +#if defined _RELOCATABLE || defined __PIC__ + .uleb128 0x0 /* Augmentation size */ +#endif + .byte 0x4 /* DW_CFA_advance_loc4 */ + .4byte .LCFI0-.LFB1 + .byte 0xd /* DW_CFA_def_cfa_register */ + .uleb128 0x08 + .byte 0x4 /* DW_CFA_advance_loc4 */ + .4byte .LCFI5-.LCFI0 + .byte 0x2f /* DW_CFA_GNU_negative_offset_extended */ + .uleb128 0x41 + .uleb128 0x1 + .byte 0x9f /* DW_CFA_offset, column 0x1f */ + .uleb128 0x1 + .byte 0x9e /* DW_CFA_offset, column 0x1e */ + .uleb128 0x2 + .byte 0x9d /* DW_CFA_offset, column 0x1d */ + .uleb128 0x3 + .byte 0x9c /* DW_CFA_offset, column 0x1c */ + .uleb128 0x4 + .byte 0x4 /* DW_CFA_advance_loc4 */ + .4byte .LCFI6-.LCFI5 + .byte 0xd /* DW_CFA_def_cfa_register */ + .uleb128 0x1c + .align 2 +.LEFDE1: +#endif -- cgit v1.2.3