diff options
Diffstat (limited to 'gcc-4.4.3/libffi/src/sparc/v8.S')
| -rw-r--r-- | gcc-4.4.3/libffi/src/sparc/v8.S | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/gcc-4.4.3/libffi/src/sparc/v8.S b/gcc-4.4.3/libffi/src/sparc/v8.S new file mode 100644 index 000000000..38307599b --- /dev/null +++ b/gcc-4.4.3/libffi/src/sparc/v8.S @@ -0,0 +1,312 @@ +/* ----------------------------------------------------------------------- + v8.S - Copyright (c) 1996, 1997, 2003, 2004 Red Hat, Inc. + + SPARC Foreign Function Interface + + 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 CYGNUS SOLUTIONS 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 <fficonfig.h> +#include <ffi.h> + +#define STACKFRAME 96 /* Minimum stack framesize for SPARC */ +#define ARGS (64+4) /* Offset of register area in frame */ + +.text + .align 8 +.globl ffi_call_v8 +.globl _ffi_call_v8 + +ffi_call_v8: +_ffi_call_v8: +.LLFB1: + save %sp, -STACKFRAME, %sp +.LLCFI0: + + sub %sp, %i2, %sp ! alloca() space in stack for frame to set up + add %sp, STACKFRAME, %l0 ! %l0 has start of + ! frame to set up + + mov %l0, %o0 ! call routine to set up frame + call %i0 + mov %i1, %o1 ! (delay) + + ld [%l0+ARGS], %o0 ! call foreign function + ld [%l0+ARGS+4], %o1 + ld [%l0+ARGS+8], %o2 + ld [%l0+ARGS+12], %o3 + ld [%l0+ARGS+16], %o4 + ld [%l0+ARGS+20], %o5 + call %i5 + mov %l0, %sp ! (delay) switch to frame + nop ! STRUCT returning functions skip 12 instead of 8 bytes + + ! If the return value pointer is NULL, assume no return value. + tst %i4 + bz done + nop + + cmp %i3, FFI_TYPE_INT + be,a done + st %o0, [%i4] ! (delay) + + cmp %i3, FFI_TYPE_FLOAT + be,a done + st %f0, [%i4+0] ! (delay) + + cmp %i3, FFI_TYPE_DOUBLE + be,a double + st %f0, [%i4+0] ! (delay) + + cmp %i3, FFI_TYPE_SINT8 + be,a sint8 + sll %o0, 24, %o0 ! (delay) + + cmp %i3, FFI_TYPE_UINT8 + be,a uint8 + sll %o0, 24, %o0 ! (delay) + + cmp %i3, FFI_TYPE_SINT16 + be,a sint16 + sll %o0, 16, %o0 ! (delay) + + cmp %i3, FFI_TYPE_UINT16 + be,a uint16 + sll %o0, 16, %o0 ! (delay) + + cmp %i3, FFI_TYPE_SINT64 + be,a longlong + st %o0, [%i4+0] ! (delay) +done: + ret + restore + +double: + st %f1, [%i4+4] + ret + restore + +sint8: + sra %o0, 24, %o0 + st %o0, [%i4+0] + ret + restore + +uint8: + srl %o0, 24, %o0 + st %o0, [%i4+0] + ret + restore + +sint16: + sra %o0, 16, %o0 + st %o0, [%i4+0] + ret + restore + +uint16: + srl %o0, 16, %o0 + st %o0, [%i4+0] + ret + restore + +longlong: + st %o1, [%i4+4] + ret + restore +.LLFE1: + +.ffi_call_v8_end: + .size ffi_call_v8,.ffi_call_v8_end-ffi_call_v8 + + +#undef STACKFRAME +#define STACKFRAME 104 /* 16*4 register window + + 1*4 struct return + + 6*4 args backing store + + 3*4 locals */ + +/* ffi_closure_v8(...) + + Receives the closure argument in %g2. */ + + .text + .align 8 + .globl ffi_closure_v8 + +ffi_closure_v8: +#ifdef HAVE_AS_REGISTER_PSEUDO_OP + .register %g2, #scratch +#endif +.LLFB2: + ! Reserve frame space for all arguments in case + ! we need to align them on a 8-byte boundary. + ld [%g2+FFI_TRAMPOLINE_SIZE], %g1 + ld [%g1+4], %g1 + sll %g1, 3, %g1 + add %g1, STACKFRAME, %g1 + ! %g1 == STACKFRAME + 8*nargs + neg %g1 + save %sp, %g1, %sp +.LLCFI1: + + ! Store all of the potential argument registers in va_list format. + st %i0, [%fp+68+0] + st %i1, [%fp+68+4] + st %i2, [%fp+68+8] + st %i3, [%fp+68+12] + st %i4, [%fp+68+16] + st %i5, [%fp+68+20] + + ! Call ffi_closure_sparc_inner to do the bulk of the work. + mov %g2, %o0 + add %fp, -8, %o1 + add %fp, 64, %o2 + call ffi_closure_sparc_inner_v8 + add %fp, -16, %o3 + + ! Load up the return value in the proper type. + ! See ffi_prep_cif_machdep for the list of cases. + cmp %o0, FFI_TYPE_VOID + be done1 + + cmp %o0, FFI_TYPE_INT + be done1 + ld [%fp-8], %i0 + + cmp %o0, FFI_TYPE_FLOAT + be,a done1 + ld [%fp-8], %f0 + + cmp %o0, FFI_TYPE_DOUBLE + be,a done1 + ldd [%fp-8], %f0 + +#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE + cmp %o0, FFI_TYPE_LONGDOUBLE + be done2 +#endif + + cmp %o0, FFI_TYPE_STRUCT + be done2 + + cmp %o0, FFI_TYPE_SINT64 + be,a done1 + ldd [%fp-8], %i0 + + ld [%fp-8], %i0 +done1: + jmp %i7+8 + restore +done2: + ! Skip 'unimp'. + jmp %i7+12 + restore +.LLFE2: + +.ffi_closure_v8_end: + .size ffi_closure_v8,.ffi_closure_v8_end-ffi_closure_v8 + +#ifdef SPARC64 +#define WS 8 +#define nword xword +#define uanword uaxword +#else +#define WS 4 +#define nword long +#define uanword uaword +#endif + +#ifdef HAVE_RO_EH_FRAME + .section ".eh_frame",#alloc +#else + .section ".eh_frame",#alloc,#write +#endif +.LLframe1: + .uaword .LLECIE1-.LLSCIE1 ! Length of Common Information Entry +.LLSCIE1: + .uaword 0x0 ! CIE Identifier Tag + .byte 0x1 ! CIE Version + .ascii "zR\0" ! CIE Augmentation + .byte 0x1 ! uleb128 0x1; CIE Code Alignment Factor + .byte 0x80-WS ! sleb128 -WS; CIE Data Alignment Factor + .byte 0xf ! CIE RA Column + .byte 0x1 ! uleb128 0x1; Augmentation size +#ifdef HAVE_AS_SPARC_UA_PCREL + .byte 0x1b ! FDE Encoding (pcrel sdata4) +#else + .byte 0x50 ! FDE Encoding (aligned absolute) +#endif + .byte 0xc ! DW_CFA_def_cfa + .byte 0xe ! uleb128 0xe + .byte 0x0 ! uleb128 0x0 + .align WS +.LLECIE1: +.LLSFDE1: + .uaword .LLEFDE1-.LLASFDE1 ! FDE Length +.LLASFDE1: + .uaword .LLASFDE1-.LLframe1 ! FDE CIE offset +#ifdef HAVE_AS_SPARC_UA_PCREL + .uaword %r_disp32(.LLFB1) + .uaword .LLFE1-.LLFB1 ! FDE address range +#else + .align WS + .nword .LLFB1 + .uanword .LLFE1-.LLFB1 ! FDE address range +#endif + .byte 0x0 ! uleb128 0x0; Augmentation size + .byte 0x4 ! DW_CFA_advance_loc4 + .uaword .LLCFI0-.LLFB1 + .byte 0xd ! DW_CFA_def_cfa_register + .byte 0x1e ! uleb128 0x1e + .byte 0x2d ! DW_CFA_GNU_window_save + .byte 0x9 ! DW_CFA_register + .byte 0xf ! uleb128 0xf + .byte 0x1f ! uleb128 0x1f + .align WS +.LLEFDE1: +.LLSFDE2: + .uaword .LLEFDE2-.LLASFDE2 ! FDE Length +.LLASFDE2: + .uaword .LLASFDE2-.LLframe1 ! FDE CIE offset +#ifdef HAVE_AS_SPARC_UA_PCREL + .uaword %r_disp32(.LLFB2) + .uaword .LLFE2-.LLFB2 ! FDE address range +#else + .align WS + .nword .LLFB2 + .uanword .LLFE2-.LLFB2 ! FDE address range +#endif + .byte 0x0 ! uleb128 0x0; Augmentation size + .byte 0x4 ! DW_CFA_advance_loc4 + .uaword .LLCFI1-.LLFB2 + .byte 0xd ! DW_CFA_def_cfa_register + .byte 0x1e ! uleb128 0x1e + .byte 0x2d ! DW_CFA_GNU_window_save + .byte 0x9 ! DW_CFA_register + .byte 0xf ! uleb128 0xf + .byte 0x1f ! uleb128 0x1f + .align WS +.LLEFDE2: + +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif |