#ifdef __i386__ /* ----------------------------------------------------------------------- darwin.S - Copyright (c) 1996, 1998, 2001, 2002, 2003 Red Hat, Inc. X86 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. ----------------------------------------------------------------------- */ /* * This file is based on sysv.S and then hacked up by Ronald who hasn't done * assembly programming in 8 years. */ #ifndef __x86_64__ #define LIBFFI_ASM #include #include #ifdef PyObjC_STRICT_DEBUGGING /* XXX: Debugging of stack alignment, to be removed */ #define ASSERT_STACK_ALIGNED movdqa -16(%esp), %xmm0 #else #define ASSERT_STACK_ALIGNED #endif .text .globl _ffi_prep_args .align 4 .globl _ffi_call_SYSV _ffi_call_SYSV: LFB1: pushl %ebp LCFI0: movl %esp,%ebp LCFI1: subl $8,%esp /* Make room for all of the new args. */ movl 16(%ebp),%ecx subl %ecx,%esp movl %esp,%eax /* Place all of the ffi_prep_args in position */ subl $8,%esp pushl 12(%ebp) pushl %eax call *8(%ebp) /* Return stack to previous state and call the function */ addl $16,%esp call *28(%ebp) /* Remove the space we pushed for the args */ movl 16(%ebp),%ecx addl %ecx,%esp /* Load %ecx with the return type code */ movl 20(%ebp),%ecx /* If the return value pointer is NULL, assume no return value. */ cmpl $0,24(%ebp) jne Lretint /* Even if there is no space for the return value, we are obliged to handle floating-point values. */ cmpl $FFI_TYPE_FLOAT,%ecx jne Lnoretval fstp %st(0) jmp Lepilogue Lretint: cmpl $FFI_TYPE_INT,%ecx jne Lretfloat /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx movl %eax,0(%ecx) jmp Lepilogue Lretfloat: cmpl $FFI_TYPE_FLOAT,%ecx jne Lretdouble /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx fstps (%ecx) jmp Lepilogue Lretdouble: cmpl $FFI_TYPE_DOUBLE,%ecx jne Lretlongdouble /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx fstpl (%ecx) jmp Lepilogue Lretlongdouble: cmpl $FFI_TYPE_LONGDOUBLE,%ecx jne Lretint64 /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx fstpt (%ecx) jmp Lepilogue Lretint64: cmpl $FFI_TYPE_SINT64,%ecx jne Lretstruct1b /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx movl %eax,0(%ecx) movl %edx,4(%ecx) jmp Lepilogue Lretstruct1b: cmpl $FFI_TYPE_SINT8,%ecx jne Lretstruct2b /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx movb %al,0(%ecx) jmp Lepilogue Lretstruct2b: cmpl $FFI_TYPE_SINT16,%ecx jne Lretstruct /* Load %ecx with the pointer to storage for the return value */ movl 24(%ebp),%ecx movw %ax,0(%ecx) jmp Lepilogue Lretstruct: cmpl $FFI_TYPE_STRUCT,%ecx jne Lnoretval /* Nothing to do! */ addl $4,%esp popl %ebp ret Lnoretval: Lepilogue: addl $8,%esp movl %ebp,%esp popl %ebp ret LFE1: .ffi_call_SYSV_end: .align 4 FFI_HIDDEN (ffi_closure_SYSV) .globl _ffi_closure_SYSV _ffi_closure_SYSV: LFB2: pushl %ebp LCFI2: movl %esp, %ebp LCFI3: subl $56, %esp leal -40(%ebp), %edx movl %edx, -12(%ebp) /* resp */ leal 8(%ebp), %edx movl %edx, 4(%esp) /* args = __builtin_dwarf_cfa () */ leal -12(%ebp), %edx movl %edx, (%esp) /* &resp */ movl %ebx, 8(%esp) LCFI7: call L_ffi_closure_SYSV_inner$stub movl 8(%esp), %ebx movl -12(%ebp), %ecx cmpl $FFI_TYPE_INT, %eax je Lcls_retint cmpl $FFI_TYPE_FLOAT, %eax je Lcls_retfloat cmpl $FFI_TYPE_DOUBLE, %eax je Lcls_retdouble cmpl $FFI_TYPE_LONGDOUBLE, %eax je Lcls_retldouble cmpl $FFI_TYPE_SINT64, %eax je Lcls_retllong cmpl $FFI_TYPE_SINT8, %eax je Lcls_retstruct1 cmpl $FFI_TYPE_SINT16, %eax je Lcls_retstruct2 cmpl $FFI_TYPE_STRUCT, %eax je Lcls_retstruct Lcls_epilogue: movl %ebp, %esp popl %ebp ret Lcls_retint: movl (%ecx), %eax jmp Lcls_epilogue Lcls_retfloat: flds (%ecx) jmp Lcls_epilogue Lcls_retdouble: fldl (%ecx) jmp Lcls_epilogue Lcls_retldouble: fldt (%ecx) jmp Lcls_epilogue Lcls_retllong: movl (%ecx), %eax movl 4(%ecx), %edx jmp Lcls_epilogue Lcls_retstruct1: movsbl (%ecx), %eax jmp Lcls_epilogue Lcls_retstruct2: movswl (%ecx), %eax jmp Lcls_epilogue Lcls_retstruct: lea -8(%ebp),%esp movl %ebp, %esp popl %ebp ret $4 LFE2: #if !FFI_NO_RAW_API #define RAW_CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) & ~3) #define RAW_CLOSURE_FUN_OFFSET (RAW_CLOSURE_CIF_OFFSET + 4) #define RAW_CLOSURE_USER_DATA_OFFSET (RAW_CLOSURE_FUN_OFFSET + 4) #define CIF_FLAGS_OFFSET 20 .align 4 FFI_HIDDEN (ffi_closure_raw_SYSV) .globl _ffi_closure_raw_SYSV _ffi_closure_raw_SYSV: LFB3: pushl %ebp LCFI4: movl %esp, %ebp LCFI5: pushl %esi LCFI6: subl $36, %esp movl RAW_CLOSURE_CIF_OFFSET(%eax), %esi /* closure->cif */ movl RAW_CLOSURE_USER_DATA_OFFSET(%eax), %edx /* closure->user_data */ movl %edx, 12(%esp) /* user_data */ leal 8(%ebp), %edx /* __builtin_dwarf_cfa () */ movl %edx, 8(%esp) /* raw_args */ leal -24(%ebp), %edx movl %edx, 4(%esp) /* &res */ movl %esi, (%esp) /* cif */ call *RAW_CLOSURE_FUN_OFFSET(%eax) /* closure->fun */ movl CIF_FLAGS_OFFSET(%esi), %eax /* rtype */ cmpl $FFI_TYPE_INT, %eax je Lrcls_retint cmpl $FFI_TYPE_FLOAT, %eax je Lrcls_retfloat cmpl $FFI_TYPE_DOUBLE, %eax je Lrcls_retdouble cmpl $FFI_TYPE_LONGDOUBLE, %eax je Lrcls_retldouble cmpl $FFI_TYPE_SINT64, %eax je Lrcls_retllong Lrcls_epilogue: addl $36, %esp popl %esi popl %ebp ret Lrcls_retint: movl -24(%ebp), %eax jmp Lrcls_epilogue Lrcls_retfloat: flds -24(%ebp) jmp Lrcls_epilogue Lrcls_retdouble: fldl -24(%ebp) jmp Lrcls_epilogue Lrcls_retldouble: fldt -24(%ebp) jmp Lrcls_epilogue Lrcls_retllong: movl -24(%ebp), %eax movl -20(%ebp), %edx jmp Lrcls_epilogue LFE3: #endif .section __IMPORT,__jump_table,symbol_stubs,self_modifying_code+pure_instructions,5 L_ffi_closure_SYSV_inner$stub: .indirect_symbol _ffi_closure_SYSV_inner hlt ; hlt ; hlt ; hlt ; hlt .section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support EH_frame1: .set L$set$0,LECIE1-LSCIE1 .long L$set$0 LSCIE1: .long 0x0 .byte 0x1 .ascii "zR\0" .byte 0x1 .byte 0x7c .byte 0x8 .byte 0x1 .byte 0x10 .byte 0xc .byte 0x5 .byte 0x4 .byte 0x88 .byte 0x1 .align 2 LECIE1: .globl _ffi_call_SYSV.eh _ffi_call_SYSV.eh: LSFDE1: .set L$set$1,LEFDE1-LASFDE1 .long L$set$1 LASFDE1: .long LASFDE1-EH_frame1 .long LFB1-. .set L$set$2,LFE1-LFB1 .long L$set$2 .byte 0x0 .byte 0x4 .set L$set$3,LCFI0-LFB1 .long L$set$3 .byte 0xe .byte 0x8 .byte 0x84 .byte 0x2 .byte 0x4 .set L$set$4,LCFI1-LCFI0 .long L$set$4 .byte 0xd .byte 0x4 .align 2 LEFDE1: .globl _ffi_closure_SYSV.eh _ffi_closure_SYSV.eh: LSFDE2: .set L$set$5,LEFDE2-LASFDE2 .long L$set$5 LASFDE2: .long LASFDE2-EH_frame1 .long LFB2-. .set L$set$6,LFE2-LFB2 .long L$set$6 .byte 0x0 .byte 0x4 .set L$set$7,LCFI2-LFB2 .long L$set$7 .byte 0xe .byte 0x8 .byte 0x84 .byte 0x2 .byte 0x4 .set L$set$8,LCFI3-LCFI2 .long L$set$8 .byte 0xd .byte 0x4 .align 2 LEFDE2: #if !FFI_NO_RAW_API .globl _ffi_closure_raw_SYSV.eh _ffi_closure_raw_SYSV.eh: LSFDE3: .set L$set$10,LEFDE3-LASFDE3 .long L$set$10 LASFDE3: .long LASFDE3-EH_frame1 .long LFB3-. .set L$set$11,LFE3-LFB3 .long L$set$11 .byte 0x0 .byte 0x4 .set L$set$12,LCFI4-LFB3 .long L$set$12 .byte 0xe .byte 0x8 .byte 0x84 .byte 0x2 .byte 0x4 .set L$set$13,LCFI5-LCFI4 .long L$set$13 .byte 0xd .byte 0x4 .byte 0x4 .set L$set$14,LCFI6-LCFI5 .long L$set$14 .byte 0x85 .byte 0x3 .align 2 LEFDE3: #endif #endif /* ifndef __x86_64__ */ #endif /* defined __i386__ */