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Diffstat (limited to 'libffi.old/src/x86/win32.S')
| -rw-r--r-- | libffi.old/src/x86/win32.S | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/libffi.old/src/x86/win32.S b/libffi.old/src/x86/win32.S deleted file mode 100644 index bc2812c..0000000 --- a/libffi.old/src/x86/win32.S +++ /dev/null @@ -1,259 +0,0 @@ -/* ----------------------------------------------------------------------- - win32.S - Copyright (c) 1996, 1998, 2001, 2002 Red Hat, Inc. - Copyright (c) 2001 John Beniton - Copyright (c) 2002 Ranjit Mathew - - - 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 <fficonfig.h> -#include <ffi.h> - -.text - -.globl ffi_prep_args - - # This assumes we are using gas. - .balign 16 -.globl _ffi_call_SYSV - -_ffi_call_SYSV: - pushl %ebp - movl %esp,%ebp - - # 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 - - # FIXME: Align the stack to a 128-bit boundary to avoid - # potential performance hits. - - 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 retstruct1b - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movl %eax,0(%ecx) - movl %edx,4(%ecx) - -retstruct1b: - cmpl $FFI_TYPE_SINT8,%ecx - jne retstruct2b - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movb %al,0(%ecx) - jmp epilogue - -retstruct2b: - cmpl $FFI_TYPE_SINT16,%ecx - jne retstruct - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movw %ax,0(%ecx) - jmp epilogue - -retstruct: - # Nothing to do! - -noretval: -epilogue: - movl %ebp,%esp - popl %ebp - ret - -.ffi_call_SYSV_end: - - # This assumes we are using gas. - .balign 16 -.globl _ffi_call_STDCALL - -_ffi_call_STDCALL: - pushl %ebp - movl %esp,%ebp - - # 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 - - # FIXME: Align the stack to a 128-bit boundary to avoid - # potential performance hits. - - call *28(%ebp) - - # stdcall functions pop arguments off the stack themselves - - # 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 sc_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 sc_noretval - fstp %st(0) - - jmp sc_epilogue - -sc_retint: - cmpl $FFI_TYPE_INT,%ecx - jne sc_retfloat - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movl %eax,0(%ecx) - jmp sc_epilogue - -sc_retfloat: - cmpl $FFI_TYPE_FLOAT,%ecx - jne sc_retdouble - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - fstps (%ecx) - jmp sc_epilogue - -sc_retdouble: - cmpl $FFI_TYPE_DOUBLE,%ecx - jne sc_retlongdouble - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - fstpl (%ecx) - jmp sc_epilogue - -sc_retlongdouble: - cmpl $FFI_TYPE_LONGDOUBLE,%ecx - jne sc_retint64 - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - fstpt (%ecx) - jmp sc_epilogue - -sc_retint64: - cmpl $FFI_TYPE_SINT64,%ecx - jne sc_retstruct1b - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movl %eax,0(%ecx) - movl %edx,4(%ecx) - -sc_retstruct1b: - cmpl $FFI_TYPE_SINT8,%ecx - jne sc_retstruct2b - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movb %al,0(%ecx) - jmp sc_epilogue - -sc_retstruct2b: - cmpl $FFI_TYPE_SINT16,%ecx - jne sc_retstruct - # Load %ecx with the pointer to storage for the return value - movl 24(%ebp),%ecx - movw %ax,0(%ecx) - jmp sc_epilogue - -sc_retstruct: - # Nothing to do! - -sc_noretval: -sc_epilogue: - movl %ebp,%esp - popl %ebp - ret - -.ffi_call_STDCALL_end: |