+++ /dev/null
-/* -----------------------------------------------------------------------
- sysv.S - Copyright (c) 1996, 1998, 2001 Cygnus Solutions
-
- 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.
- ----------------------------------------------------------------------- */
-
-#define LIBFFI_ASM
-#include <ffi.h>
-
-.text
-
-.globl ffi_prep_args
-
- .align 4
-.globl ffi_call_SYSV
- .type ffi_call_SYSV,@function
-
-ffi_call_SYSV:
-.LFB1:
- pushl %ebp
-.LCFI0:
- movl %esp,%ebp
-.LCFI1:
- /* 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 */
- pushl 12(%ebp)
- pushl %eax
- call *8(%ebp)
-
- /* Return stack to previous state and call the function */
- addl $8,%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 retint
-
- /* Even if there is no space for the return value, we are
- obliged to handle floating-point values. */
- cmpl $FFI_TYPE_FLOAT,%ecx
- jne noretval
- fstp %st(0)
-
- jmp epilogue
-
-retint:
- cmpl $FFI_TYPE_INT,%ecx
- jne retfloat
- /* Load %ecx with the pointer to storage for the return value */
- movl 24(%ebp),%ecx
- movl %eax,0(%ecx)
- jmp epilogue
-
-retfloat:
- cmpl $FFI_TYPE_FLOAT,%ecx
- jne retdouble
- /* Load %ecx with the pointer to storage for the return value */
- movl 24(%ebp),%ecx
- fstps (%ecx)
- jmp epilogue
-
-retdouble:
- cmpl $FFI_TYPE_DOUBLE,%ecx
- jne retlongdouble
- /* Load %ecx with the pointer to storage for the return value */
- movl 24(%ebp),%ecx
- fstpl (%ecx)
- jmp epilogue
-
-retlongdouble:
- cmpl $FFI_TYPE_LONGDOUBLE,%ecx
- jne retint64
- /* Load %ecx with the pointer to storage for the return value */
- movl 24(%ebp),%ecx
- fstpt (%ecx)
- jmp epilogue
-
-retint64:
- cmpl $FFI_TYPE_SINT64,%ecx
- jne retstruct
- /* Load %ecx with the pointer to storage for the return value */
- movl 24(%ebp),%ecx
- movl %eax,0(%ecx)
- movl %edx,4(%ecx)
-
-retstruct:
- /* Nothing to do! */
-
-noretval:
-epilogue:
- movl %ebp,%esp
- popl %ebp
- ret
-.LFE1:
-.ffi_call_SYSV_end:
- .size ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
-
-.section .eh_frame,"aw",@progbits
-__FRAME_BEGIN__:
- .4byte .LLCIE1
-.LSCIE1:
- .4byte 0x0
- .byte 0x1
- .byte 0x0
- .byte 0x1
- .byte 0x7c
- .byte 0x8
- .byte 0xc
- .byte 0x4
- .byte 0x4
- .byte 0x88
- .byte 0x1
- .align 4
-.LECIE1:
- .set .LLCIE1,.LECIE1-.LSCIE1
- .4byte .LLFDE1
-.LSFDE1:
- .4byte .LSFDE1-__FRAME_BEGIN__
- .4byte .LFB1
- .4byte .LFE1-.LFB1
- .byte 0x4
- .4byte .LCFI0-.LFB1
- .byte 0xe
- .byte 0x8
- .byte 0x85
- .byte 0x2
- .byte 0x4
- .4byte .LCFI1-.LCFI0
- .byte 0xd
- .byte 0x5
- .align 4
-.LEFDE1:
- .set .LLFDE1,.LEFDE1-.LSFDE1
projects / msp430-gcc.git / blobdiff