libffi/src/x86/darwin64.S - gcc - Git at Google

 /* -----------------------------------------------------------------------
    darwin64.S - Copyright (c) 2006 Free Software Foundation, Inc.
 	        Copyright (c) 2008 Red Hat, Inc.
    derived from unix64.S

    x86-64 Foreign Function Interface for Darwin.

    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 AUTHOR 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.
    ----------------------------------------------------------------------- */

 #ifdef __x86_64__
 #define LIBFFI_ASM
 #include <fficonfig.h>
 #include <ffi.h>

 	.file "darwin64.S"
 .text

 /* ffi_call_unix64 (void *args, unsigned long bytes, unsigned flags,
 		    void *raddr, void (*fnaddr)(void));

    Bit o trickiness here -- ARGS+BYTES is the base of the stack frame
    for this function.  This has been allocated by ffi_call.  We also
    deallocate some of the stack that has been alloca'd.  */

 	.align	3
 	.globl	_ffi_call_unix64

 _ffi_call_unix64:
 LUW0:
 	movq	(%rsp), %r10		/* Load return address.  */
 	leaq	(%rdi, %rsi), %rax	/* Find local stack base.  */
 	movq	%rdx, (%rax)		/* Save flags.  */
 	movq	%rcx, 8(%rax)		/* Save raddr.  */
 	movq	%rbp, 16(%rax)		/* Save old frame pointer.  */
 	movq	%r10, 24(%rax)		/* Relocate return address.  */
 	movq	%rax, %rbp		/* Finalize local stack frame.  */
 LUW1:
 	movq	%rdi, %r10		/* Save a copy of the register area. */
 	movq	%r8, %r11		/* Save a copy of the target fn.  */
 	movl	%r9d, %eax		/* Set number of SSE registers.  */

 	/* Load up all argument registers.  */
 	movq	(%r10), %rdi
 	movq	8(%r10), %rsi
 	movq	16(%r10), %rdx
 	movq	24(%r10), %rcx
 	movq	32(%r10), %r8
 	movq	40(%r10), %r9
 	testl	%eax, %eax
 	jnz	Lload_sse
 Lret_from_load_sse:

 	/* Deallocate the reg arg area.  */
 	leaq	176(%r10), %rsp

 	/* Call the user function.  */
 	call	*%r11

 	/* Deallocate stack arg area; local stack frame in redzone.  */
 	leaq	24(%rbp), %rsp

 	movq	0(%rbp), %rcx		/* Reload flags.  */
 	movq	8(%rbp), %rdi		/* Reload raddr.  */
 	movq	16(%rbp), %rbp		/* Reload old frame pointer.  */
 LUW2:

 	/* The first byte of the flags contains the FFI_TYPE.  */
 	movzbl	%cl, %r10d
 	leaq	Lstore_table(%rip), %r11
 	movslq	(%r11, %r10, 4), %r10
 	addq	%r11, %r10
 	jmp	*%r10

 Lstore_table:
 	.long	Lst_void-Lstore_table		/* FFI_TYPE_VOID */
 	.long	Lst_sint32-Lstore_table		/* FFI_TYPE_INT */
 	.long	Lst_float-Lstore_table		/* FFI_TYPE_FLOAT */
 	.long	Lst_double-Lstore_table		/* FFI_TYPE_DOUBLE */
 	.long	Lst_ldouble-Lstore_table	/* FFI_TYPE_LONGDOUBLE */
 	.long	Lst_uint8-Lstore_table		/* FFI_TYPE_UINT8 */
 	.long	Lst_sint8-Lstore_table		/* FFI_TYPE_SINT8 */
 	.long	Lst_uint16-Lstore_table		/* FFI_TYPE_UINT16 */
 	.long	Lst_sint16-Lstore_table		/* FFI_TYPE_SINT16 */
 	.long	Lst_uint32-Lstore_table		/* FFI_TYPE_UINT32 */
 	.long	Lst_sint32-Lstore_table		/* FFI_TYPE_SINT32 */
 	.long	Lst_int64-Lstore_table		/* FFI_TYPE_UINT64 */
 	.long	Lst_int64-Lstore_table		/* FFI_TYPE_SINT64 */
 	.long	Lst_struct-Lstore_table		/* FFI_TYPE_STRUCT */
 	.long	Lst_int64-Lstore_table		/* FFI_TYPE_POINTER */

 	.text
 	.align	3
 Lst_void:
 	ret
 	.align	3
 Lst_uint8:
 	movzbq	%al, %rax
 	movq	%rax, (%rdi)
 	ret
 	.align	3
 Lst_sint8:
 	movsbq	%al, %rax
 	movq	%rax, (%rdi)
 	ret
 	.align	3
 Lst_uint16:
 	movzwq	%ax, %rax
 	movq	%rax, (%rdi)
 	.align	3
 Lst_sint16:
 	movswq	%ax, %rax
 	movq	%rax, (%rdi)
 	ret
 	.align	3
 Lst_uint32:
 	movl	%eax, %eax
 	movq	%rax, (%rdi)
 	.align	3
 Lst_sint32:
 	cltq
 	movq	%rax, (%rdi)
 	ret
 	.align	3
 Lst_int64:
 	movq	%rax, (%rdi)
 	ret
 	.align	3
 Lst_float:
 	movss	%xmm0, (%rdi)
 	ret
 	.align	3
 Lst_double:
 	movsd	%xmm0, (%rdi)
 	ret
 Lst_ldouble:
 	fstpt	(%rdi)
 	ret
 	.align	3
 Lst_struct:
 	leaq	-20(%rsp), %rsi		/* Scratch area in redzone.  */

 	/* We have to locate the values now, and since we don't want to
 	   write too much data into the user's return value, we spill the
 	   value to a 16 byte scratch area first.  Bits 8, 9, and 10
 	   control where the values are located.  Only one of the three
 	   bits will be set; see ffi_prep_cif_machdep for the pattern.  */
 	movd	%xmm0, %r10
 	movd	%xmm1, %r11
 	testl	$0x100, %ecx
 	cmovnz	%rax, %rdx
 	cmovnz	%r10, %rax
 	testl	$0x200, %ecx
 	cmovnz	%r10, %rdx
 	testl	$0x400, %ecx
 	cmovnz	%r10, %rax
 	cmovnz	%r11, %rdx
 	movq	%rax, (%rsi)
 	movq	%rdx, 8(%rsi)

 	/* Bits 12-31 contain the true size of the structure.  Copy from
 	   the scratch area to the true destination.  */
 	shrl	$12, %ecx
 	rep movsb
 	ret

 	/* Many times we can avoid loading any SSE registers at all.
 	   It's not worth an indirect jump to load the exact set of
 	   SSE registers needed; zero or all is a good compromise.  */
 	.align	3
 LUW3:
 Lload_sse:
 	movdqa	48(%r10), %xmm0
 	movdqa	64(%r10), %xmm1
 	movdqa	80(%r10), %xmm2
 	movdqa	96(%r10), %xmm3
 	movdqa	112(%r10), %xmm4
 	movdqa	128(%r10), %xmm5
 	movdqa	144(%r10), %xmm6
 	movdqa	160(%r10), %xmm7
 	jmp	Lret_from_load_sse

 LUW4:
 	.align	3
 	.globl	_ffi_closure_unix64

 _ffi_closure_unix64:
 LUW5:
 	/* The carry flag is set by the trampoline iff SSE registers
 	   are used.  Don't clobber it before the branch instruction.  */
 	leaq    -200(%rsp), %rsp
 LUW6:
 	movq	%rdi, (%rsp)
 	movq    %rsi, 8(%rsp)
 	movq    %rdx, 16(%rsp)
 	movq    %rcx, 24(%rsp)
 	movq    %r8, 32(%rsp)
 	movq    %r9, 40(%rsp)
 	jc      Lsave_sse
 Lret_from_save_sse:

 	movq	%r10, %rdi
 	leaq	176(%rsp), %rsi
 	movq	%rsp, %rdx
 	leaq	208(%rsp), %rcx
 	call	_ffi_closure_unix64_inner

 	/* Deallocate stack frame early; return value is now in redzone.  */
 	addq	$200, %rsp
 LUW7:

 	/* The first byte of the return value contains the FFI_TYPE.  */
 	movzbl	%al, %r10d
 	leaq	Lload_table(%rip), %r11
 	movslq	(%r11, %r10, 4), %r10
 	addq	%r11, %r10
 	jmp	*%r10

 Lload_table:
 	.long	Lld_void-Lload_table		/* FFI_TYPE_VOID */
 	.long	Lld_int32-Lload_table		/* FFI_TYPE_INT */
 	.long	Lld_float-Lload_table		/* FFI_TYPE_FLOAT */
 	.long	Lld_double-Lload_table		/* FFI_TYPE_DOUBLE */
 	.long	Lld_ldouble-Lload_table		/* FFI_TYPE_LONGDOUBLE */
 	.long	Lld_int8-Lload_table		/* FFI_TYPE_UINT8 */
 	.long	Lld_int8-Lload_table		/* FFI_TYPE_SINT8 */
 	.long	Lld_int16-Lload_table		/* FFI_TYPE_UINT16 */
 	.long	Lld_int16-Lload_table		/* FFI_TYPE_SINT16 */
 	.long	Lld_int32-Lload_table		/* FFI_TYPE_UINT32 */
 	.long	Lld_int32-Lload_table		/* FFI_TYPE_SINT32 */
 	.long	Lld_int64-Lload_table		/* FFI_TYPE_UINT64 */
 	.long	Lld_int64-Lload_table		/* FFI_TYPE_SINT64 */
 	.long	Lld_struct-Lload_table		/* FFI_TYPE_STRUCT */
 	.long	Lld_int64-Lload_table		/* FFI_TYPE_POINTER */

 	.text
 	.align	3
 Lld_void:
 	ret
 	.align	3
 Lld_int8:
 	movzbl	-24(%rsp), %eax
 	ret
 	.align	3
 Lld_int16:
 	movzwl	-24(%rsp), %eax
 	ret
 	.align	3
 Lld_int32:
 	movl	-24(%rsp), %eax
 	ret
 	.align	3
 Lld_int64:
 	movq	-24(%rsp), %rax
 	ret
 	.align	3
 Lld_float:
 	movss	-24(%rsp), %xmm0
 	ret
 	.align	3
 Lld_double:
 	movsd	-24(%rsp), %xmm0
 	ret
 	.align	3
 Lld_ldouble:
 	fldt	-24(%rsp)
 	ret
 	.align	3
 Lld_struct:
 	/* There are four possibilities here, %rax/%rdx, %xmm0/%rax,
 	   %rax/%xmm0, %xmm0/%xmm1.  We collapse two by always loading
 	   both rdx and xmm1 with the second word.  For the remaining,
 	   bit 8 set means xmm0 gets the second word, and bit 9 means
 	   that rax gets the second word.  */
 	movq	-24(%rsp), %rcx
 	movq	-16(%rsp), %rdx
 	movq	-16(%rsp), %xmm1
 	testl	$0x100, %eax
 	cmovnz	%rdx, %rcx
 	movd	%rcx, %xmm0
 	testl	$0x200, %eax
 	movq	-24(%rsp), %rax
 	cmovnz	%rdx, %rax
 	ret

 	/* See the comment above Lload_sse; the same logic applies here.  */
 	.align	3
 LUW8:
 Lsave_sse:
 	movdqa	%xmm0, 48(%rsp)
 	movdqa	%xmm1, 64(%rsp)
 	movdqa	%xmm2, 80(%rsp)
 	movdqa	%xmm3, 96(%rsp)
 	movdqa	%xmm4, 112(%rsp)
 	movdqa	%xmm5, 128(%rsp)
 	movdqa	%xmm6, 144(%rsp)
 	movdqa	%xmm7, 160(%rsp)
 	jmp	Lret_from_save_sse

 LUW9:
 .section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
 EH_frame1:
 	.set	L$set$0,LECIE1-LSCIE1		/* CIE Length */
 	.long	L$set$0
 LSCIE1:
 	.long	0x0		/* CIE Identifier Tag */
 	.byte	0x1		/* CIE Version */
 	.ascii	"zR\0"		/* CIE Augmentation */
 	.byte	0x1		/* uleb128 0x1; CIE Code Alignment Factor */
 	.byte	0x78		/* sleb128 -8; CIE Data Alignment Factor */
 	.byte	0x10		/* CIE RA Column */
 	.byte	0x1		/* uleb128 0x1; Augmentation size */
 	.byte	0x10		/* FDE Encoding (pcrel sdata4) */
 	.byte	0xc		/* DW_CFA_def_cfa, %rsp offset 8 */
 	.byte	0x7		/* uleb128 0x7 */
 	.byte	0x8		/* uleb128 0x8 */
 	.byte	0x90		/* DW_CFA_offset, column 0x10 */
 	.byte	0x1
 	.align	3
 LECIE1:
 	.globl _ffi_call_unix64.eh
 _ffi_call_unix64.eh:
 LSFDE1:
 	.set	L$set$1,LEFDE1-LASFDE1	/* FDE Length */
 	.long	L$set$1
 LASFDE1:
 	.long	LASFDE1-EH_frame1	/* FDE CIE offset */
 	.quad	LUW0-.			/* FDE initial location */
 	.set	L$set$2,LUW4-LUW0	/* FDE address range */
 	.quad	L$set$2
 	.byte	0x0			/* Augmentation size */
 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$3,LUW1-LUW0
 	.long	L$set$3

 	/* New stack frame based off rbp.  This is a itty bit of unwind
 	   trickery in that the CFA *has* changed.  There is no easy way
 	   to describe it correctly on entry to the function.  Fortunately,
 	   it doesn't matter too much since at all points we can correctly
 	   unwind back to ffi_call.  Note that the location to which we
 	   moved the return address is (the new) CFA-8, so from the
 	   perspective of the unwind info, it hasn't moved.  */
 	.byte	0xc			/* DW_CFA_def_cfa, %rbp offset 32 */
 	.byte	0x6
 	.byte	0x20
 	.byte	0x80+6			/* DW_CFA_offset, %rbp offset 2*-8 */
 	.byte	0x2
 	.byte	0xa			/* DW_CFA_remember_state */

 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$4,LUW2-LUW1
 	.long	L$set$4
 	.byte	0xc			/* DW_CFA_def_cfa, %rsp offset 8 */
 	.byte	0x7
 	.byte	0x8
 	.byte	0xc0+6			/* DW_CFA_restore, %rbp */

 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$5,LUW3-LUW2
 	.long	L$set$5
 	.byte	0xb			/* DW_CFA_restore_state */

 	.align	3
 LEFDE1:
 	.globl _ffi_closure_unix64.eh
 _ffi_closure_unix64.eh:
 LSFDE3:
 	.set	L$set$6,LEFDE3-LASFDE3	/* FDE Length */
 	.long	L$set$6
 LASFDE3:
 	.long	LASFDE3-EH_frame1	/* FDE CIE offset */
 	.quad	LUW5-.			/* FDE initial location */
 	.set	L$set$7,LUW9-LUW5	/* FDE address range */
 	.quad	L$set$7
 	.byte	0x0			/* Augmentation size */

 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$8,LUW6-LUW5
 	.long	L$set$8
 	.byte	0xe			/* DW_CFA_def_cfa_offset */
 	.byte	208,1			/* uleb128 208 */
 	.byte	0xa			/* DW_CFA_remember_state */

 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$9,LUW7-LUW6
 	.long	L$set$9
 	.byte	0xe			/* DW_CFA_def_cfa_offset */
 	.byte	0x8

 	.byte	0x4			/* DW_CFA_advance_loc4 */
 	.set	L$set$10,LUW8-LUW7
 	.long	L$set$10
 	.byte	0xb			/* DW_CFA_restore_state */

 	.align	3
 LEFDE3:
 	.subsections_via_symbols

 #endif /* __x86_64__ */
	/* -----------------------------------------------------------------------
	darwin64.S - Copyright (c) 2006 Free Software Foundation, Inc.
	Copyright (c) 2008 Red Hat, Inc.
	derived from unix64.S

	x86-64 Foreign Function Interface for Darwin.

	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 AUTHOR 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.
	----------------------------------------------------------------------- */

	#ifdef __x86_64__
	#define LIBFFI_ASM
	#include <fficonfig.h>
	#include <ffi.h>

	.file "darwin64.S"
	.text

	/* ffi_call_unix64 (void *args, unsigned long bytes, unsigned flags,
	void raddr, void (fnaddr)(void));

	Bit o trickiness here -- ARGS+BYTES is the base of the stack frame
	for this function. This has been allocated by ffi_call. We also
	deallocate some of the stack that has been alloca'd. */

	.align 3
	.globl _ffi_call_unix64

	_ffi_call_unix64:
	LUW0:
	movq (%rsp), %r10 /* Load return address. */
	leaq (%rdi, %rsi), %rax /* Find local stack base. */
	movq %rdx, (%rax) /* Save flags. */
	movq %rcx, 8(%rax) /* Save raddr. */
	movq %rbp, 16(%rax) /* Save old frame pointer. */
	movq %r10, 24(%rax) /* Relocate return address. */
	movq %rax, %rbp /* Finalize local stack frame. */
	LUW1:
	movq %rdi, %r10 /* Save a copy of the register area. */
	movq %r8, %r11 /* Save a copy of the target fn. */
	movl %r9d, %eax /* Set number of SSE registers. */

	/* Load up all argument registers. */
	movq (%r10), %rdi
	movq 8(%r10), %rsi
	movq 16(%r10), %rdx
	movq 24(%r10), %rcx
	movq 32(%r10), %r8
	movq 40(%r10), %r9
	testl %eax, %eax
	jnz Lload_sse
	Lret_from_load_sse:

	/* Deallocate the reg arg area. */
	leaq 176(%r10), %rsp

	/* Call the user function. */
	call *%r11

	/* Deallocate stack arg area; local stack frame in redzone. */
	leaq 24(%rbp), %rsp

	movq 0(%rbp), %rcx /* Reload flags. */
	movq 8(%rbp), %rdi /* Reload raddr. */
	movq 16(%rbp), %rbp /* Reload old frame pointer. */
	LUW2:

	/* The first byte of the flags contains the FFI_TYPE. */
	movzbl %cl, %r10d
	leaq Lstore_table(%rip), %r11
	movslq (%r11, %r10, 4), %r10
	addq %r11, %r10
	jmp *%r10

	Lstore_table:
	.long Lst_void-Lstore_table /* FFI_TYPE_VOID */
	.long Lst_sint32-Lstore_table /* FFI_TYPE_INT */
	.long Lst_float-Lstore_table /* FFI_TYPE_FLOAT */
	.long Lst_double-Lstore_table /* FFI_TYPE_DOUBLE */
	.long Lst_ldouble-Lstore_table /* FFI_TYPE_LONGDOUBLE */
	.long Lst_uint8-Lstore_table /* FFI_TYPE_UINT8 */
	.long Lst_sint8-Lstore_table /* FFI_TYPE_SINT8 */
	.long Lst_uint16-Lstore_table /* FFI_TYPE_UINT16 */
	.long Lst_sint16-Lstore_table /* FFI_TYPE_SINT16 */
	.long Lst_uint32-Lstore_table /* FFI_TYPE_UINT32 */
	.long Lst_sint32-Lstore_table /* FFI_TYPE_SINT32 */
	.long Lst_int64-Lstore_table /* FFI_TYPE_UINT64 */
	.long Lst_int64-Lstore_table /* FFI_TYPE_SINT64 */
	.long Lst_struct-Lstore_table /* FFI_TYPE_STRUCT */
	.long Lst_int64-Lstore_table /* FFI_TYPE_POINTER */

	.text
	.align 3
	Lst_void:
	ret
	.align 3
	Lst_uint8:
	movzbq %al, %rax
	movq %rax, (%rdi)
	ret
	.align 3
	Lst_sint8:
	movsbq %al, %rax
	movq %rax, (%rdi)
	ret
	.align 3
	Lst_uint16:
	movzwq %ax, %rax
	movq %rax, (%rdi)
	.align 3
	Lst_sint16:
	movswq %ax, %rax
	movq %rax, (%rdi)
	ret
	.align 3
	Lst_uint32:
	movl %eax, %eax
	movq %rax, (%rdi)
	.align 3
	Lst_sint32:
	cltq
	movq %rax, (%rdi)
	ret
	.align 3
	Lst_int64:
	movq %rax, (%rdi)
	ret
	.align 3
	Lst_float:
	movss %xmm0, (%rdi)
	ret
	.align 3
	Lst_double:
	movsd %xmm0, (%rdi)
	ret
	Lst_ldouble:
	fstpt (%rdi)
	ret
	.align 3
	Lst_struct:
	leaq -20(%rsp), %rsi /* Scratch area in redzone. */

	/* We have to locate the values now, and since we don't want to
	write too much data into the user's return value, we spill the
	value to a 16 byte scratch area first. Bits 8, 9, and 10
	control where the values are located. Only one of the three
	bits will be set; see ffi_prep_cif_machdep for the pattern. */
	movd %xmm0, %r10
	movd %xmm1, %r11
	testl $0x100, %ecx
	cmovnz %rax, %rdx
	cmovnz %r10, %rax
	testl $0x200, %ecx
	cmovnz %r10, %rdx
	testl $0x400, %ecx
	cmovnz %r10, %rax
	cmovnz %r11, %rdx
	movq %rax, (%rsi)
	movq %rdx, 8(%rsi)

	/* Bits 12-31 contain the true size of the structure. Copy from
	the scratch area to the true destination. */
	shrl $12, %ecx
	rep movsb
	ret

	/* Many times we can avoid loading any SSE registers at all.
	It's not worth an indirect jump to load the exact set of
	SSE registers needed; zero or all is a good compromise. */
	.align 3
	LUW3:
	Lload_sse:
	movdqa 48(%r10), %xmm0
	movdqa 64(%r10), %xmm1
	movdqa 80(%r10), %xmm2
	movdqa 96(%r10), %xmm3
	movdqa 112(%r10), %xmm4
	movdqa 128(%r10), %xmm5
	movdqa 144(%r10), %xmm6
	movdqa 160(%r10), %xmm7
	jmp Lret_from_load_sse

	LUW4:
	.align 3
	.globl _ffi_closure_unix64

	_ffi_closure_unix64:
	LUW5:
	/* The carry flag is set by the trampoline iff SSE registers
	are used. Don't clobber it before the branch instruction. */
	leaq -200(%rsp), %rsp
	LUW6:
	movq %rdi, (%rsp)
	movq %rsi, 8(%rsp)
	movq %rdx, 16(%rsp)
	movq %rcx, 24(%rsp)
	movq %r8, 32(%rsp)
	movq %r9, 40(%rsp)
	jc Lsave_sse
	Lret_from_save_sse:

	movq %r10, %rdi
	leaq 176(%rsp), %rsi
	movq %rsp, %rdx
	leaq 208(%rsp), %rcx
	call _ffi_closure_unix64_inner

	/* Deallocate stack frame early; return value is now in redzone. */
	addq $200, %rsp
	LUW7:

	/* The first byte of the return value contains the FFI_TYPE. */
	movzbl %al, %r10d
	leaq Lload_table(%rip), %r11
	movslq (%r11, %r10, 4), %r10
	addq %r11, %r10
	jmp *%r10

	Lload_table:
	.long Lld_void-Lload_table /* FFI_TYPE_VOID */
	.long Lld_int32-Lload_table /* FFI_TYPE_INT */
	.long Lld_float-Lload_table /* FFI_TYPE_FLOAT */
	.long Lld_double-Lload_table /* FFI_TYPE_DOUBLE */
	.long Lld_ldouble-Lload_table /* FFI_TYPE_LONGDOUBLE */
	.long Lld_int8-Lload_table /* FFI_TYPE_UINT8 */
	.long Lld_int8-Lload_table /* FFI_TYPE_SINT8 */
	.long Lld_int16-Lload_table /* FFI_TYPE_UINT16 */
	.long Lld_int16-Lload_table /* FFI_TYPE_SINT16 */
	.long Lld_int32-Lload_table /* FFI_TYPE_UINT32 */
	.long Lld_int32-Lload_table /* FFI_TYPE_SINT32 */
	.long Lld_int64-Lload_table /* FFI_TYPE_UINT64 */
	.long Lld_int64-Lload_table /* FFI_TYPE_SINT64 */
	.long Lld_struct-Lload_table /* FFI_TYPE_STRUCT */
	.long Lld_int64-Lload_table /* FFI_TYPE_POINTER */

	.text
	.align 3
	Lld_void:
	ret
	.align 3
	Lld_int8:
	movzbl -24(%rsp), %eax
	ret
	.align 3
	Lld_int16:
	movzwl -24(%rsp), %eax
	ret
	.align 3
	Lld_int32:
	movl -24(%rsp), %eax
	ret
	.align 3
	Lld_int64:
	movq -24(%rsp), %rax
	ret
	.align 3
	Lld_float:
	movss -24(%rsp), %xmm0
	ret
	.align 3
	Lld_double:
	movsd -24(%rsp), %xmm0
	ret
	.align 3
	Lld_ldouble:
	fldt -24(%rsp)
	ret
	.align 3
	Lld_struct:
	/* There are four possibilities here, %rax/%rdx, %xmm0/%rax,
	%rax/%xmm0, %xmm0/%xmm1. We collapse two by always loading
	both rdx and xmm1 with the second word. For the remaining,
	bit 8 set means xmm0 gets the second word, and bit 9 means
	that rax gets the second word. */
	movq -24(%rsp), %rcx
	movq -16(%rsp), %rdx
	movq -16(%rsp), %xmm1
	testl $0x100, %eax
	cmovnz %rdx, %rcx
	movd %rcx, %xmm0
	testl $0x200, %eax
	movq -24(%rsp), %rax
	cmovnz %rdx, %rax
	ret

	/* See the comment above Lload_sse; the same logic applies here. */
	.align 3
	LUW8:
	Lsave_sse:
	movdqa %xmm0, 48(%rsp)
	movdqa %xmm1, 64(%rsp)
	movdqa %xmm2, 80(%rsp)
	movdqa %xmm3, 96(%rsp)
	movdqa %xmm4, 112(%rsp)
	movdqa %xmm5, 128(%rsp)
	movdqa %xmm6, 144(%rsp)
	movdqa %xmm7, 160(%rsp)
	jmp Lret_from_save_sse

	LUW9:
	.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
	EH_frame1:
	.set L$set$0,LECIE1-LSCIE1 /* CIE Length */
	.long L$set$0
	LSCIE1:
	.long 0x0 /* CIE Identifier Tag */
	.byte 0x1 /* CIE Version */
	.ascii "zR\0" /* CIE Augmentation */
	.byte 0x1 /* uleb128 0x1; CIE Code Alignment Factor */
	.byte 0x78 /* sleb128 -8; CIE Data Alignment Factor */
	.byte 0x10 /* CIE RA Column */
	.byte 0x1 /* uleb128 0x1; Augmentation size */
	.byte 0x10 /* FDE Encoding (pcrel sdata4) */
	.byte 0xc /* DW_CFA_def_cfa, %rsp offset 8 */
	.byte 0x7 /* uleb128 0x7 */
	.byte 0x8 /* uleb128 0x8 */
	.byte 0x90 /* DW_CFA_offset, column 0x10 */
	.byte 0x1
	.align 3
	LECIE1:
	.globl _ffi_call_unix64.eh
	_ffi_call_unix64.eh:
	LSFDE1:
	.set L$set$1,LEFDE1-LASFDE1 /* FDE Length */
	.long L$set$1
	LASFDE1:
	.long LASFDE1-EH_frame1 /* FDE CIE offset */
	.quad LUW0-. /* FDE initial location */
	.set L$set$2,LUW4-LUW0 /* FDE address range */
	.quad L$set$2
	.byte 0x0 /* Augmentation size */
	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$3,LUW1-LUW0
	.long L$set$3

	/* New stack frame based off rbp. This is a itty bit of unwind
	trickery in that the CFA has changed. There is no easy way
	to describe it correctly on entry to the function. Fortunately,
	it doesn't matter too much since at all points we can correctly
	unwind back to ffi_call. Note that the location to which we
	moved the return address is (the new) CFA-8, so from the
	perspective of the unwind info, it hasn't moved. */
	.byte 0xc /* DW_CFA_def_cfa, %rbp offset 32 */
	.byte 0x6
	.byte 0x20
	.byte 0x80+6 /* DW_CFA_offset, %rbp offset 2-8 /
	.byte 0x2
	.byte 0xa /* DW_CFA_remember_state */

	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$4,LUW2-LUW1
	.long L$set$4
	.byte 0xc /* DW_CFA_def_cfa, %rsp offset 8 */
	.byte 0x7
	.byte 0x8
	.byte 0xc0+6 /* DW_CFA_restore, %rbp */

	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$5,LUW3-LUW2
	.long L$set$5
	.byte 0xb /* DW_CFA_restore_state */

	.align 3
	LEFDE1:
	.globl _ffi_closure_unix64.eh
	_ffi_closure_unix64.eh:
	LSFDE3:
	.set L$set$6,LEFDE3-LASFDE3 /* FDE Length */
	.long L$set$6
	LASFDE3:
	.long LASFDE3-EH_frame1 /* FDE CIE offset */
	.quad LUW5-. /* FDE initial location */
	.set L$set$7,LUW9-LUW5 /* FDE address range */
	.quad L$set$7
	.byte 0x0 /* Augmentation size */

	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$8,LUW6-LUW5
	.long L$set$8
	.byte 0xe /* DW_CFA_def_cfa_offset */
	.byte 208,1 /* uleb128 208 */
	.byte 0xa /* DW_CFA_remember_state */

	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$9,LUW7-LUW6
	.long L$set$9
	.byte 0xe /* DW_CFA_def_cfa_offset */
	.byte 0x8

	.byte 0x4 /* DW_CFA_advance_loc4 */
	.set L$set$10,LUW8-LUW7
	.long L$set$10
	.byte 0xb /* DW_CFA_restore_state */

	.align 3
	LEFDE3:
	.subsections_via_symbols

	#endif /* __x86_64__ */