[ctypes-commit] ctypes/source/libffi/src/sparc ffi.c,NONE,1.1.2.1 ffitarget.h,NONE,1.1.2.1 v8.S,NONE
Brought to you by:
theller
Menu
▾
▴
[ctypes-commit] ctypes/source/libffi/src/sparc ffi.c,NONE,1.1.2.1 ffitarget.h,NONE,1.1.2.1 v8.S,NONE,1.1.2.1 v9.S,NONE,1.1.2.1
|
From: Thomas H. <th...@us...> - 2006-01-31 19:44:51
|
Update of /cvsroot/ctypes/ctypes/source/libffi/src/sparc In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14582/source/libffi/src/sparc Added Files: Tag: branch_1_0 ffi.c ffitarget.h v8.S v9.S Log Message: Integrated a patch from Hye-Shik Chang (perky). He wrote (http://mail.python.org/pipermail/python-dev/2006-January/060199.html): I did some work to make ctypes+libffi compacter and liberal. http://openlook.org/svnpublic/ctypes-compactffi/ (snv) I removed sources/gcc and put sources/libffi copied from gcc 4.0.2. And removed all automake-related build processes and integrated them info setup.py. There's still aclocal.m4 in sources/libffi. But it is just identical to libffi's acinclude.m4 which looks liberal. --- NEW FILE: v9.S --- /* ----------------------------------------------------------------------- v9.S - Copyright (c) 2000, 2003, 2004 Red Hat, Inc. SPARC 64-bit 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> #ifdef SPARC64 /* Only compile this in for 64bit builds, because otherwise the object file will have inproper architecture due to used instructions. */ #define STACKFRAME 128 /* Minimum stack framesize for SPARC */ #define STACK_BIAS 2047 #define ARGS (128) /* Offset of register area in frame */ .text .align 8 .globl ffi_call_v9 .globl _ffi_call_v9 ffi_call_v9: _ffi_call_v9: .LLFB1: save %sp, -STACKFRAME, %sp .LLCFI0: sub %sp, %i2, %sp ! alloca() space in stack for frame to set up add %sp, STACKFRAME+STACK_BIAS, %l0 ! %l0 has start of ! frame to set up mov %l0, %o0 ! call routine to set up frame call %i0 mov %i1, %o1 ! (delay) brz,pt %o0, 1f ldx [%l0+ARGS], %o0 ! call foreign function ldd [%l0+ARGS], %f0 ldd [%l0+ARGS+8], %f2 ldd [%l0+ARGS+16], %f4 ldd [%l0+ARGS+24], %f6 ldd [%l0+ARGS+32], %f8 ldd [%l0+ARGS+40], %f10 ldd [%l0+ARGS+48], %f12 ldd [%l0+ARGS+56], %f14 ldd [%l0+ARGS+64], %f16 ldd [%l0+ARGS+72], %f18 ldd [%l0+ARGS+80], %f20 ldd [%l0+ARGS+88], %f22 ldd [%l0+ARGS+96], %f24 ldd [%l0+ARGS+104], %f26 ldd [%l0+ARGS+112], %f28 ldd [%l0+ARGS+120], %f30 1: ldx [%l0+ARGS+8], %o1 ldx [%l0+ARGS+16], %o2 ldx [%l0+ARGS+24], %o3 ldx [%l0+ARGS+32], %o4 ldx [%l0+ARGS+40], %o5 call %i5 sub %l0, STACK_BIAS, %sp ! (delay) switch to frame ! If the return value pointer is NULL, assume no return value. brz,pn %i4, done nop cmp %i3, FFI_TYPE_INT be,a,pt %icc, done stx %o0, [%i4+0] ! (delay) cmp %i3, FFI_TYPE_FLOAT be,a,pn %icc, done st %f0, [%i4+0] ! (delay) cmp %i3, FFI_TYPE_DOUBLE be,a,pn %icc, done std %f0, [%i4+0] ! (delay) cmp %i3, FFI_TYPE_STRUCT be,pn %icc, dostruct cmp %i3, FFI_TYPE_LONGDOUBLE bne,pt %icc, done nop std %f0, [%i4+0] std %f2, [%i4+8] done: ret restore dostruct: /* This will not work correctly for unions. */ stx %o0, [%i4+0] stx %o1, [%i4+8] stx %o2, [%i4+16] stx %o3, [%i4+24] std %f0, [%i4+32] std %f2, [%i4+40] std %f4, [%i4+48] std %f6, [%i4+56] ret restore .LLFE1: .ffi_call_v9_end: .size ffi_call_v9,.ffi_call_v9_end-ffi_call_v9 #undef STACKFRAME #define STACKFRAME 336 /* 16*8 register window + 6*8 args backing store + 20*8 locals */ #define FP %fp+STACK_BIAS /* ffi_closure_v9(...) Receives the closure argument in %g1. */ .text .align 8 .globl ffi_closure_v9 ffi_closure_v9: .LLFB2: save %sp, -STACKFRAME, %sp .LLCFI1: ! Store all of the potential argument registers in va_list format. stx %i0, [FP+128+0] stx %i1, [FP+128+8] stx %i2, [FP+128+16] stx %i3, [FP+128+24] stx %i4, [FP+128+32] stx %i5, [FP+128+40] ! Store possible floating point argument registers too. std %f0, [FP-128] std %f2, [FP-120] std %f4, [FP-112] std %f6, [FP-104] std %f8, [FP-96] std %f10, [FP-88] std %f12, [FP-80] std %f14, [FP-72] std %f16, [FP-64] std %f18, [FP-56] std %f20, [FP-48] std %f22, [FP-40] std %f24, [FP-32] std %f26, [FP-24] std %f28, [FP-16] std %f30, [FP-8] ! Call ffi_closure_sparc_inner to do the bulk of the work. mov %g1, %o0 add %fp, STACK_BIAS-160, %o1 add %fp, STACK_BIAS+128, %o2 call ffi_closure_sparc_inner_v9 add %fp, STACK_BIAS-128, %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,pn %icc, done1 cmp %o0, FFI_TYPE_INT be,pn %icc, integer cmp %o0, FFI_TYPE_FLOAT be,a,pn %icc, done1 ld [FP-160], %f0 cmp %o0, FFI_TYPE_DOUBLE be,a,pn %icc, done1 ldd [FP-160], %f0 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE cmp %o0, FFI_TYPE_LONGDOUBLE be,a,pn %icc, longdouble1 ldd [FP-160], %f0 #endif ! FFI_TYPE_STRUCT ldx [FP-152], %i1 ldx [FP-144], %i2 ldx [FP-136], %i3 ldd [FP-160], %f0 ldd [FP-152], %f2 ldd [FP-144], %f4 ldd [FP-136], %f6 integer: ldx [FP-160], %i0 done1: ret restore #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE longdouble1: ldd [FP-152], %f2 ret restore #endif .LLFE2: .ffi_closure_v9_end: .size ffi_closure_v9,.ffi_closure_v9_end-ffi_closure_v9 #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 0x78 ! sleb128 -8; 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 0xff,0xf ! uleb128 0x7ff .align 8 .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 8 .xword .LLFB1 .uaxword .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 8 .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 8 .xword .LLFB2 .uaxword .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 8 .LLEFDE2: #endif --- NEW FILE: ffitarget.h --- /* -----------------------------------------------------------------*-C-*- ffitarget.h - Copyright (c) 1996-2003 Red Hat, Inc. Target configuration macros for SPARC. 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. ----------------------------------------------------------------------- */ #ifndef LIBFFI_TARGET_H #define LIBFFI_TARGET_H /* ---- System specific configurations ----------------------------------- */ #if defined(__arch64__) || defined(__sparcv9) #define SPARC64 #endif #ifndef LIBFFI_ASM typedef unsigned long ffi_arg; typedef signed long ffi_sarg; typedef enum ffi_abi { FFI_FIRST_ABI = 0, FFI_V8, FFI_V8PLUS, FFI_V9, #ifdef SPARC64 FFI_DEFAULT_ABI = FFI_V9, #else FFI_DEFAULT_ABI = FFI_V8, #endif FFI_LAST_ABI = FFI_DEFAULT_ABI + 1 } ffi_abi; #endif /* ---- Definitions for closures ----------------------------------------- */ #define FFI_CLOSURES 1 #define FFI_NATIVE_RAW_API 0 #ifdef SPARC64 #define FFI_TRAMPOLINE_SIZE 24 #else #define FFI_TRAMPOLINE_SIZE 16 #endif #endif --- NEW FILE: ffi.c --- /* ----------------------------------------------------------------------- ffi.c - Copyright (c) 1996, 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. ----------------------------------------------------------------------- */ #include <ffi.h> #include <ffi_common.h> #include <stdlib.h> /* ffi_prep_args is called by the assembly routine once stack space has been allocated for the function's arguments */ void ffi_prep_args_v8(char *stack, extended_cif *ecif) { int i; void **p_argv; char *argp; ffi_type **p_arg; /* Skip 16 words for the window save area */ argp = stack + 16*sizeof(int); /* This should only really be done when we are returning a structure, however, it's faster just to do it all the time... if ( ecif->cif->rtype->type == FFI_TYPE_STRUCT ) */ *(int *) argp = (long)ecif->rvalue; /* And 1 word for the structure return value. */ argp += sizeof(int); #ifdef USING_PURIFY /* Purify will probably complain in our assembly routine, unless we zero out this memory. */ ((int*)argp)[0] = 0; ((int*)argp)[1] = 0; ((int*)argp)[2] = 0; ((int*)argp)[3] = 0; ((int*)argp)[4] = 0; ((int*)argp)[5] = 0; #endif p_argv = ecif->avalue; for (i = ecif->cif->nargs, p_arg = ecif->cif->arg_types; i; i--, p_arg++) { size_t z; if ((*p_arg)->type == FFI_TYPE_STRUCT #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE || (*p_arg)->type == FFI_TYPE_LONGDOUBLE #endif ) { *(unsigned int *) argp = (unsigned long)(* p_argv); z = sizeof(int); } else { z = (*p_arg)->size; if (z < sizeof(int)) { z = sizeof(int); switch ((*p_arg)->type) { case FFI_TYPE_SINT8: *(signed int *) argp = *(SINT8 *)(* p_argv); break; case FFI_TYPE_UINT8: *(unsigned int *) argp = *(UINT8 *)(* p_argv); break; case FFI_TYPE_SINT16: *(signed int *) argp = *(SINT16 *)(* p_argv); break; case FFI_TYPE_UINT16: *(unsigned int *) argp = *(UINT16 *)(* p_argv); break; default: FFI_ASSERT(0); } } else { memcpy(argp, *p_argv, z); } } p_argv++; argp += z; } return; } int ffi_prep_args_v9(char *stack, extended_cif *ecif) { int i, ret = 0; int tmp; void **p_argv; char *argp; ffi_type **p_arg; tmp = 0; /* Skip 16 words for the window save area */ argp = stack + 16*sizeof(long long); #ifdef USING_PURIFY /* Purify will probably complain in our assembly routine, unless we zero out this memory. */ ((long long*)argp)[0] = 0; ((long long*)argp)[1] = 0; ((long long*)argp)[2] = 0; ((long long*)argp)[3] = 0; ((long long*)argp)[4] = 0; ((long long*)argp)[5] = 0; #endif p_argv = ecif->avalue; if (ecif->cif->rtype->type == FFI_TYPE_STRUCT && ecif->cif->rtype->size > 32) { *(unsigned long long *) argp = (unsigned long)ecif->rvalue; argp += sizeof(long long); tmp = 1; } for (i = 0, p_arg = ecif->cif->arg_types; i < ecif->cif->nargs; i++, p_arg++) { size_t z; z = (*p_arg)->size; switch ((*p_arg)->type) { case FFI_TYPE_STRUCT: if (z > 16) { /* For structures larger than 16 bytes we pass reference. */ *(unsigned long long *) argp = (unsigned long)* p_argv; argp += sizeof(long long); tmp++; p_argv++; continue; } /* FALLTHROUGH */ case FFI_TYPE_FLOAT: case FFI_TYPE_DOUBLE: #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE case FFI_TYPE_LONGDOUBLE: #endif ret = 1; /* We should promote into FP regs as well as integer. */ break; } if (z < sizeof(long long)) { switch ((*p_arg)->type) { case FFI_TYPE_SINT8: *(signed long long *) argp = *(SINT8 *)(* p_argv); break; case FFI_TYPE_UINT8: *(unsigned long long *) argp = *(UINT8 *)(* p_argv); break; case FFI_TYPE_SINT16: *(signed long long *) argp = *(SINT16 *)(* p_argv); break; case FFI_TYPE_UINT16: *(unsigned long long *) argp = *(UINT16 *)(* p_argv); break; case FFI_TYPE_SINT32: *(signed long long *) argp = *(SINT32 *)(* p_argv); break; case FFI_TYPE_UINT32: *(unsigned long long *) argp = *(UINT32 *)(* p_argv); break; case FFI_TYPE_FLOAT: *(float *) (argp + 4) = *(FLOAT32 *)(* p_argv); /* Right justify */ break; case FFI_TYPE_STRUCT: memcpy(argp, *p_argv, z); break; default: FFI_ASSERT(0); } z = sizeof(long long); tmp++; } else if (z == sizeof(long long)) { memcpy(argp, *p_argv, z); z = sizeof(long long); tmp++; } else { if ((tmp & 1) && (*p_arg)->alignment > 8) { tmp++; argp += sizeof(long long); } memcpy(argp, *p_argv, z); z = 2 * sizeof(long long); tmp += 2; } p_argv++; argp += z; } return ret; } /* Perform machine dependent cif processing */ ffi_status ffi_prep_cif_machdep(ffi_cif *cif) { int wordsize; if (cif->abi != FFI_V9) { wordsize = 4; /* If we are returning a struct, this will already have been added. Otherwise we need to add it because it's always got to be there! */ if (cif->rtype->type != FFI_TYPE_STRUCT) cif->bytes += wordsize; /* sparc call frames require that space is allocated for 6 args, even if they aren't used. Make that space if necessary. */ if (cif->bytes < 4*6+4) cif->bytes = 4*6+4; } else { wordsize = 8; /* sparc call frames require that space is allocated for 6 args, even if they aren't used. Make that space if necessary. */ if (cif->bytes < 8*6) cif->bytes = 8*6; } /* Adjust cif->bytes. to include 16 words for the window save area, and maybe the struct/union return pointer area, */ cif->bytes += 16 * wordsize; /* The stack must be 2 word aligned, so round bytes up appropriately. */ cif->bytes = ALIGN(cif->bytes, 2 * wordsize); /* Set the return type flag */ switch (cif->rtype->type) { case FFI_TYPE_VOID: case FFI_TYPE_FLOAT: case FFI_TYPE_DOUBLE: #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE case FFI_TYPE_LONGDOUBLE: #endif cif->flags = cif->rtype->type; break; case FFI_TYPE_STRUCT: if (cif->abi == FFI_V9 && cif->rtype->size > 32) cif->flags = FFI_TYPE_VOID; else cif->flags = FFI_TYPE_STRUCT; break; case FFI_TYPE_SINT64: case FFI_TYPE_UINT64: if (cif->abi != FFI_V9) { cif->flags = FFI_TYPE_SINT64; break; } /* FALLTHROUGH */ default: cif->flags = FFI_TYPE_INT; break; } return FFI_OK; } int ffi_v9_layout_struct(ffi_type *arg, int off, char *ret, char *intg, char *flt) { ffi_type **ptr = &arg->elements[0]; while (*ptr != NULL) { if (off & ((*ptr)->alignment - 1)) off = ALIGN(off, (*ptr)->alignment); switch ((*ptr)->type) { case FFI_TYPE_STRUCT: off = ffi_v9_layout_struct(*ptr, off, ret, intg, flt); off = ALIGN(off, FFI_SIZEOF_ARG); break; case FFI_TYPE_FLOAT: case FFI_TYPE_DOUBLE: #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE case FFI_TYPE_LONGDOUBLE: #endif memmove(ret + off, flt + off, (*ptr)->size); off += (*ptr)->size; break; default: memmove(ret + off, intg + off, (*ptr)->size); off += (*ptr)->size; break; } ptr++; } return off; } #ifdef SPARC64 extern int ffi_call_v9(void *, extended_cif *, unsigned, unsigned, unsigned *, void (*fn)()); #else extern int ffi_call_v8(void *, extended_cif *, unsigned, unsigned, unsigned *, void (*fn)()); #endif void ffi_call(ffi_cif *cif, void (*fn)(), void *rvalue, void **avalue) { extended_cif ecif; void *rval = rvalue; ecif.cif = cif; ecif.avalue = avalue; /* If the return value is a struct and we don't have a return */ /* value address then we need to make one */ ecif.rvalue = rvalue; if (cif->rtype->type == FFI_TYPE_STRUCT) { if (cif->rtype->size <= 32) rval = alloca(64); else { rval = NULL; if (rvalue == NULL) ecif.rvalue = alloca(cif->rtype->size); } } switch (cif->abi) { case FFI_V8: #ifdef SPARC64 /* We don't yet support calling 32bit code from 64bit */ FFI_ASSERT(0); #else ffi_call_v8(ffi_prep_args_v8, &ecif, cif->bytes, cif->flags, rvalue, fn); #endif break; case FFI_V9: #ifdef SPARC64 ffi_call_v9(ffi_prep_args_v9, &ecif, cif->bytes, cif->flags, rval, fn); if (rvalue && rval && cif->rtype->type == FFI_TYPE_STRUCT) ffi_v9_layout_struct(cif->rtype, 0, (char *)rvalue, (char *)rval, ((char *)rval)+32); #else /* And vice versa */ FFI_ASSERT(0); #endif break; default: FFI_ASSERT(0); break; } } #ifdef SPARC64 extern void ffi_closure_v9(void); #else extern void ffi_closure_v8(void); #endif ffi_status ffi_prep_closure (ffi_closure* closure, ffi_cif* cif, void (*fun)(ffi_cif*, void*, void**, void*), void *user_data) { unsigned int *tramp = (unsigned int *) &closure->tramp[0]; unsigned long fn; #ifdef SPARC64 /* Trampoline address is equal to the closure address. We take advantage of that to reduce the trampoline size by 8 bytes. */ FFI_ASSERT (cif->abi == FFI_V9); fn = (unsigned long) ffi_closure_v9; tramp[0] = 0x83414000; /* rd %pc, %g1 */ tramp[1] = 0xca586010; /* ldx [%g1+16], %g5 */ tramp[2] = 0x81c14000; /* jmp %g5 */ tramp[3] = 0x01000000; /* nop */ *((unsigned long *) &tramp[4]) = fn; #else unsigned long ctx = (unsigned long) closure; FFI_ASSERT (cif->abi == FFI_V8); fn = (unsigned long) ffi_closure_v8; tramp[0] = 0x03000000 | fn >> 10; /* sethi %hi(fn), %g1 */ tramp[1] = 0x05000000 | ctx >> 10; /* sethi %hi(ctx), %g2 */ tramp[2] = 0x81c06000 | (fn & 0x3ff); /* jmp %g1+%lo(fn) */ tramp[3] = 0x8410a000 | (ctx & 0x3ff);/* or %g2, %lo(ctx) */ #endif closure->cif = cif; closure->fun = fun; closure->user_data = user_data; /* Flush the Icache. FIXME: alignment isn't certain, assume 8 bytes */ #ifdef SPARC64 asm volatile ("flush %0" : : "r" (closure) : "memory"); asm volatile ("flush %0" : : "r" (((char *) closure) + 8) : "memory"); #else asm volatile ("iflush %0" : : "r" (closure) : "memory"); asm volatile ("iflush %0" : : "r" (((char *) closure) + 8) : "memory"); #endif return FFI_OK; } int ffi_closure_sparc_inner_v8(ffi_closure *closure, void *rvalue, unsigned long *gpr, unsigned long *scratch) { ffi_cif *cif; ffi_type **arg_types; void **avalue; int i, argn; cif = closure->cif; arg_types = cif->arg_types; avalue = alloca(cif->nargs * sizeof(void *)); /* Copy the caller's structure return address so that the closure returns the data directly to the caller. */ if (cif->flags == FFI_TYPE_STRUCT #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE || cif->flags == FFI_TYPE_LONGDOUBLE #endif ) rvalue = (void *) gpr[0]; /* Always skip the structure return address. */ argn = 1; /* Grab the addresses of the arguments from the stack frame. */ for (i = 0; i < cif->nargs; i++) { if (arg_types[i]->type == FFI_TYPE_STRUCT #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE || arg_types[i]->type == FFI_TYPE_LONGDOUBLE #endif ) { /* Straight copy of invisible reference. */ avalue[i] = (void *)gpr[argn++]; } else if ((arg_types[i]->type == FFI_TYPE_DOUBLE || arg_types[i]->type == FFI_TYPE_SINT64 || arg_types[i]->type == FFI_TYPE_UINT64) /* gpr is 8-byte aligned. */ && (argn % 2) != 0) { /* Align on a 8-byte boundary. */ scratch[0] = gpr[argn]; scratch[1] = gpr[argn+1]; avalue[i] = scratch; scratch -= 2; argn += 2; } else { /* Always right-justify. */ argn += ALIGN(arg_types[i]->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG; avalue[i] = ((char *) &gpr[argn]) - arg_types[i]->size; } } /* Invoke the closure. */ (closure->fun) (cif, rvalue, avalue, closure->user_data); /* Tell ffi_closure_sparc how to perform return type promotions. */ return cif->rtype->type; } int ffi_closure_sparc_inner_v9(ffi_closure *closure, void *rvalue, unsigned long *gpr, double *fpr) { ffi_cif *cif; ffi_type **arg_types; void **avalue; int i, argn, fp_slot_max; cif = closure->cif; arg_types = cif->arg_types; avalue = alloca(cif->nargs * sizeof(void *)); /* Copy the caller's structure return address so that the closure returns the data directly to the caller. */ if (cif->flags == FFI_TYPE_VOID && cif->rtype->type == FFI_TYPE_STRUCT) { rvalue = (void *) gpr[0]; /* Skip the structure return address. */ argn = 1; } else argn = 0; fp_slot_max = 16 - argn; /* Grab the addresses of the arguments from the stack frame. */ for (i = 0; i < cif->nargs; i++) { if (arg_types[i]->type == FFI_TYPE_STRUCT) { if (arg_types[i]->size > 16) { /* Straight copy of invisible reference. */ avalue[i] = (void *)gpr[argn++]; } else { /* Left-justify. */ ffi_v9_layout_struct(arg_types[i], 0, (char *) &gpr[argn], (char *) &gpr[argn], (char *) &fpr[argn]); avalue[i] = &gpr[argn]; argn += ALIGN(arg_types[i]->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG; } } else { /* Right-justify. */ argn += ALIGN(arg_types[i]->size, FFI_SIZEOF_ARG) / FFI_SIZEOF_ARG; if (i < fp_slot_max && (arg_types[i]->type == FFI_TYPE_FLOAT || arg_types[i]->type == FFI_TYPE_DOUBLE #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE || arg_types[i]->type == FFI_TYPE_LONGDOUBLE #endif )) avalue[i] = ((char *) &fpr[argn]) - arg_types[i]->size; else avalue[i] = ((char *) &gpr[argn]) - arg_types[i]->size; } } /* Invoke the closure. */ (closure->fun) (cif, rvalue, avalue, closure->user_data); /* Tell ffi_closure_sparc how to perform return type promotions. */ return cif->rtype->type; } --- NEW FILE: v8.S --- /* ----------------------------------------------------------------------- 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_SINT64 be longlong cmp %i3, FFI_TYPE_DOUBLE bne done nop st %f0, [%i4+0] st %f1, [%i4+4] done: ret restore longlong: st %o0, [%i4+0] 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 integer 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 ! FFI_TYPE_SINT64 ! FFI_TYPE_UINT64 ld [%fp-4], %i1 integer: 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: |
