/* -----------------------------------------------------------------------
   sysv.S - Copyright (c) 1996, 1998, 2001, 2002, 2003, 2005  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.
   ----------------------------------------------------------------------- */

#ifndef __x86_64__

#define LIBFFI_ASM	
#include <fficonfig.h>
#include <ffi.h>

.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   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)
	jmp   epilogue
	
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:
	cmpl  $FFI_TYPE_STRUCT,%ecx
        jne   noretval
	/* Nothing to do!  */
        addl $4,%esp
        popl %ebp
        ret

noretval:
epilogue:
        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	$40, %esp
	leal	-24(%ebp), %edx
	movl	%edx, -12(%ebp)	/* resp */
	leal	8(%ebp), %edx
	movl	%edx, 4(%esp)	/* args = __builtin_dwarf_cfa () */
	leal	-12(%ebp), %edx
	movl	%edx, (%esp)	/* &resp */
	movl	%ebx, 8(%esp)
.LCFI7:
	call	L_ffi_closure_SYSV_inner$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__ */