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Re: libffi merge

From: Andrew Haley <aph at redhat dot com>
To: libffi-discuss at sourceware dot org, gcc-patches <gcc-patches at gcc dot gnu dot org>, Java Patch List <java-patches at gcc dot gnu dot org>
Date: Tue, 09 Jun 2009 16:23:35 +0100
Subject: Re: libffi merge
References: <4A255CF4.7030203@redhat.com> <4A265860.2050207@redhat.com> <4A26646A.80300@moxielogic.com> <4A26D4AC.8080507@redhat.com> <4A26DC78.6010508@redhat.com> <4A27A347.7070009@redhat.com> <4A27A508.2000409@redhat.com> <4A27A87F.2000405@redhat.com> <4A27C08D.9070801@moxielogic.com> <4A27C2B9.9050105@redhat.com> <4A27D82F.1030507@gmail.com> <4A27E2E4.2090902@redhat.com> <4A27EB15.9090804@redhat.com> <4A27F07F.4030608@redhat.com> <4A27F4BB.2070902@gmail.com> <4A27FE69.8020109@redhat.com> <4A290E5D.4020004@gmail.com> <4A291543.4030105@redhat.com> <4A291783.2030602@redhat.com> <4A291FF9.9060105@redhat.com> <4A2E364D.5010602@redhat.com>

x86/freebsd.S somehow got lost.

Andrew.


2009-06-09  Andrew Haley  <aph@redhat.com>

        * src/x86/freebsd.S: Add missing file.

Index: src/x86/freebsd.S
===================================================================
--- src/x86/freebsd.S	(revision 0)
+++ src/x86/freebsd.S	(revision 0)
@@ -0,0 +1,458 @@
+/* -----------------------------------------------------------------------
+   freebsd.S - Copyright (c) 1996, 1998, 2001, 2002, 2003, 2005  Red Hat, Inc.
+	       Copyright (c) 2008  BjÃ¶rn KÃ¶nig
+	
+   X86 Foreign Function Interface for FreeBSD
+
+   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 THE AUTHORS OR COPYRIGHT
+   HOLDERS 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
+        .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)
+
+	/* Load %ecx with the return type code  */
+	movl  20(%ebp),%ecx	
+
+	/* Protect %esi.  We're going to pop it in the epilogue.  */
+	pushl %esi
+
+	/* If the return value pointer is NULL, assume no return value.  */
+	cmpl  $0,24(%ebp)
+	jne  0f
+
+	/* 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
+
+0:
+	call  1f
+
+.Lstore_table:
+	.long	noretval-.Lstore_table	/* FFI_TYPE_VOID */
+	.long	retint-.Lstore_table	/* FFI_TYPE_INT */
+	.long	retfloat-.Lstore_table	/* FFI_TYPE_FLOAT */
+	.long	retdouble-.Lstore_table	/* FFI_TYPE_DOUBLE */
+	.long	retlongdouble-.Lstore_table	/* FFI_TYPE_LONGDOUBLE */
+	.long	retuint8-.Lstore_table	/* FFI_TYPE_UINT8 */
+	.long	retsint8-.Lstore_table	/* FFI_TYPE_SINT8 */
+	.long	retuint16-.Lstore_table	/* FFI_TYPE_UINT16 */
+	.long	retsint16-.Lstore_table	/* FFI_TYPE_SINT16 */
+	.long	retint-.Lstore_table	/* FFI_TYPE_UINT32 */
+	.long	retint-.Lstore_table	/* FFI_TYPE_SINT32 */
+	.long	retint64-.Lstore_table	/* FFI_TYPE_UINT64 */
+	.long	retint64-.Lstore_table	/* FFI_TYPE_SINT64 */
+	.long	retstruct-.Lstore_table	/* FFI_TYPE_STRUCT */
+	.long	retint-.Lstore_table	/* FFI_TYPE_POINTER */
+	.long   retstruct1b-.Lstore_table	/* FFI_TYPE_SMALL_STRUCT_1B */
+	.long   retstruct2b-.Lstore_table	/* FFI_TYPE_SMALL_STRUCT_2B */
+
+1:
+	pop  %esi
+	add  (%esi, %ecx, 4), %esi
+	jmp  *%esi
+
+	/* Sign/zero extend as appropriate.  */
+retsint8:
+	movsbl  %al, %eax
+	jmp  retint
+
+retsint16:
+	movswl  %ax, %eax
+	jmp  retint
+
+retuint8:
+	movzbl  %al, %eax
+	jmp  retint
+
+retuint16:
+	movzwl  %ax, %eax
+	jmp  retint
+
+retfloat:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx	
+	fstps (%ecx)
+	jmp   epilogue
+
+retdouble:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx	
+	fstpl (%ecx)
+	jmp   epilogue
+
+retlongdouble:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx	
+	fstpt (%ecx)
+	jmp   epilogue
+	
+retint64:	
+	/* 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:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx
+	movb  %al,0(%ecx)
+	jmp   epilogue
+
+retstruct2b:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx
+	movw  %ax,0(%ecx)
+	jmp   epilogue
+
+retint:
+	/* Load %ecx with the pointer to storage for the return value  */
+	movl  24(%ebp),%ecx	
+	movl  %eax,0(%ecx)
+
+retstruct:
+	/* Nothing to do!  */
+
+noretval:
+epilogue:
+        popl %esi
+        movl %ebp,%esp
+        popl %ebp
+        ret
+.LFE1:
+.ffi_call_SYSV_end:
+        .size    ffi_call_SYSV,.ffi_call_SYSV_end-ffi_call_SYSV
+
+	.align	4
+FFI_HIDDEN (ffi_closure_SYSV)
+.globl ffi_closure_SYSV
+	.type	ffi_closure_SYSV, @function
+
+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 */
+#if defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE || !defined __PIC__
+	call	ffi_closure_SYSV_inner
+#else
+	movl	%ebx, 8(%esp)
+.LCFI7:
+	call	1f
+1:	popl	%ebx
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
+	call	ffi_closure_SYSV_inner@PLT
+	movl	8(%esp), %ebx
+#endif
+	movl	-12(%ebp), %ecx
+	cmpl	$FFI_TYPE_INT, %eax
+	je	.Lcls_retint
+
+	/* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
+	   FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32.  */
+	cmpl	$FFI_TYPE_UINT64, %eax
+	jge	0f
+	cmpl	$FFI_TYPE_UINT8, %eax
+	jge	.Lcls_retint
+	
+0:	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_SMALL_STRUCT_1B, %eax
+	je	.Lcls_retstruct1b
+	cmpl	$FFI_TYPE_SMALL_STRUCT_2B, %eax
+	je	.Lcls_retstruct2b
+	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_retstruct1b:
+	movsbl	(%ecx), %eax
+	jmp	.Lcls_epilogue
+.Lcls_retstruct2b:
+	movswl	(%ecx), %eax
+	jmp	.Lcls_epilogue
+.Lcls_retstruct:
+	movl	%ebp, %esp
+	popl	%ebp
+	ret	$4
+.LFE2:
+	.size	ffi_closure_SYSV, .-ffi_closure_SYSV
+
+#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
+	.type	ffi_closure_raw_SYSV, @function
+
+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
+
+	/* Handle FFI_TYPE_UINT8, FFI_TYPE_SINT8, FFI_TYPE_UINT16,
+	   FFI_TYPE_SINT16, FFI_TYPE_UINT32, FFI_TYPE_SINT32.  */
+	cmpl	$FFI_TYPE_UINT64, %eax
+	jge	0f
+	cmpl	$FFI_TYPE_UINT8, %eax
+	jge	.Lrcls_retint
+0:
+	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:
+	.size	ffi_closure_raw_SYSV, .-ffi_closure_raw_SYSV
+#endif
+
+	.section	.eh_frame,EH_FRAME_FLAGS,@progbits
+.Lframe1:
+	.long	.LECIE1-.LSCIE1	/* Length of Common Information Entry */
+.LSCIE1:
+	.long	0x0	/* CIE Identifier Tag */
+	.byte	0x1	/* CIE Version */
+#ifdef __PIC__
+	.ascii "zR\0"	/* CIE Augmentation */
+#else
+	.ascii "\0"	/* CIE Augmentation */
+#endif
+	.byte	0x1	/* .uleb128 0x1; CIE Code Alignment Factor */
+	.byte	0x7c	/* .sleb128 -4; CIE Data Alignment Factor */
+	.byte	0x8	/* CIE RA Column */
+#ifdef __PIC__
+	.byte	0x1	/* .uleb128 0x1; Augmentation size */
+	.byte	0x1b	/* FDE Encoding (pcrel sdata4) */
+#endif
+	.byte	0xc	/* DW_CFA_def_cfa */
+	.byte	0x4	/* .uleb128 0x4 */
+	.byte	0x4	/* .uleb128 0x4 */
+	.byte	0x88	/* DW_CFA_offset, column 0x8 */
+	.byte	0x1	/* .uleb128 0x1 */
+	.align 4
+.LECIE1:
+.LSFDE1:
+	.long	.LEFDE1-.LASFDE1	/* FDE Length */
+.LASFDE1:
+	.long	.LASFDE1-.Lframe1	/* FDE CIE offset */
+#ifdef __PIC__
+	.long	.LFB1-.	/* FDE initial location */
+#else
+	.long	.LFB1	/* FDE initial location */
+#endif
+	.long	.LFE1-.LFB1	/* FDE address range */
+#ifdef __PIC__
+	.byte	0x0	/* .uleb128 0x0; Augmentation size */
+#endif
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI0-.LFB1
+	.byte	0xe	/* DW_CFA_def_cfa_offset */
+	.byte	0x8	/* .uleb128 0x8 */
+	.byte	0x85	/* DW_CFA_offset, column 0x5 */
+	.byte	0x2	/* .uleb128 0x2 */
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI1-.LCFI0
+	.byte	0xd	/* DW_CFA_def_cfa_register */
+	.byte	0x5	/* .uleb128 0x5 */
+	.align 4
+.LEFDE1:
+.LSFDE2:
+	.long	.LEFDE2-.LASFDE2	/* FDE Length */
+.LASFDE2:
+	.long	.LASFDE2-.Lframe1	/* FDE CIE offset */
+#ifdef __PIC__
+	.long	.LFB2-.	/* FDE initial location */
+#else
+	.long	.LFB2
+#endif
+	.long	.LFE2-.LFB2	/* FDE address range */
+#ifdef __PIC__
+	.byte	0x0	/* .uleb128 0x0; Augmentation size */
+#endif
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI2-.LFB2
+	.byte	0xe	/* DW_CFA_def_cfa_offset */
+	.byte	0x8	/* .uleb128 0x8 */
+	.byte	0x85	/* DW_CFA_offset, column 0x5 */
+	.byte	0x2	/* .uleb128 0x2 */
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI3-.LCFI2
+	.byte	0xd	/* DW_CFA_def_cfa_register */
+	.byte	0x5	/* .uleb128 0x5 */
+#if !defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE && defined __PIC__
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI7-.LCFI3
+	.byte	0x83	/* DW_CFA_offset, column 0x3 */
+	.byte	0xa	/* .uleb128 0xa */
+#endif
+	.align 4
+.LEFDE2:
+
+#if !FFI_NO_RAW_API
+
+.LSFDE3:
+	.long	.LEFDE3-.LASFDE3	/* FDE Length */
+.LASFDE3:
+	.long	.LASFDE3-.Lframe1	/* FDE CIE offset */
+#ifdef __PIC__
+	.long	.LFB3-.	/* FDE initial location */
+#else
+	.long	.LFB3
+#endif
+	.long	.LFE3-.LFB3	/* FDE address range */
+#ifdef __PIC__
+	.byte	0x0	/* .uleb128 0x0; Augmentation size */
+#endif
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI4-.LFB3
+	.byte	0xe	/* DW_CFA_def_cfa_offset */
+	.byte	0x8	/* .uleb128 0x8 */
+	.byte	0x85	/* DW_CFA_offset, column 0x5 */
+	.byte	0x2	/* .uleb128 0x2 */
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI5-.LCFI4
+	.byte	0xd	/* DW_CFA_def_cfa_register */
+	.byte	0x5	/* .uleb128 0x5 */
+	.byte	0x4	/* DW_CFA_advance_loc4 */
+	.long	.LCFI6-.LCFI5
+	.byte	0x86	/* DW_CFA_offset, column 0x6 */
+	.byte	0x3	/* .uleb128 0x3 */
+	.align 4
+.LEFDE3:
+
+#endif
+
+#endif /* ifndef __x86_64__ */

References:
- libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Anthony Green
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Anthony Green
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Anthony Green
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Dave Korn
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Dave Korn
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Dave Korn
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley
- Re: libffi merge
  - From: Andrew Haley

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