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libffi/src/x86/win32.S
T
Josh Triplett b5fed60194 Fix ABI on 32-bit non-Windows x86: go back to trampoline size 10 
The trampoline size is part of the ABI, so it cannot change.  Move the
logic from the stdcall and thiscall trampolines to the functions they
call, to reduce them both to 10 bytes.

This drops the previously added support for raw THISCALL closures on
non-Windows.  (Non-raw THISCALL closures still work.)
2014-04-05 17:33:42 -07:00

1275 lines
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/* -----------------------------------------------------------------------
win32.S - Copyright (c) 1996, 1998, 2001, 2002, 2009 Red Hat, Inc.
Copyright (c) 2001 John Beniton
Copyright (c) 2002 Ranjit Mathew
Copyright (c) 2009 Daniel Witte
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 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.
-----------------------------------------------------------------------
*/
#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>
#define CIF_ABI_OFFSET 0
#define CIF_BYTES_OFFSET 16
#ifdef _MSC_VER
#define CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) AND NOT 3)
.386
.MODEL FLAT, C
EXTRN ffi_closure_SYSV_inner:NEAR
_TEXT SEGMENT
ffi_call_win32 PROC NEAR,
ffi_prep_args : NEAR PTR DWORD,
ecif : NEAR PTR DWORD,
cif_abi : DWORD,
cif_bytes : DWORD,
cif_flags : DWORD,
rvalue : NEAR PTR DWORD,
fn : NEAR PTR DWORD
;; Make room for all of the new args.
mov ecx, cif_bytes
sub esp, ecx
mov eax, esp
;; Place all of the ffi_prep_args in position
push ecif
push eax
call ffi_prep_args
;; Return stack to previous state and call the function
add esp, 8
;; Handle thiscall and fastcall
cmp cif_abi, 3 ;; FFI_THISCALL
jz do_thiscall
cmp cif_abi, 4 ;; FFI_FASTCALL
jnz do_stdcall
mov ecx, DWORD PTR [esp]
mov edx, DWORD PTR [esp+4]
add esp, 8
jmp do_stdcall
do_thiscall:
mov ecx, DWORD PTR [esp]
add esp, 4
do_stdcall:
call fn
;; cdecl: we restore esp in the epilogue, so there's no need to
;; remove the space we pushed for the args.
;; stdcall: the callee has already cleaned the stack.
;; Load ecx with the return type code
mov ecx, cif_flags
;; If the return value pointer is NULL, assume no return value.
cmp rvalue, 0
jne ca_jumptable
;; Even if there is no space for the return value, we are
;; obliged to handle floating-point values.
cmp ecx, FFI_TYPE_FLOAT
jne ca_epilogue
fstp st(0)
jmp ca_epilogue
ca_jumptable:
jmp [ca_jumpdata + 4 * ecx]
ca_jumpdata:
;; Do not insert anything here between label and jump table.
dd offset ca_epilogue ;; FFI_TYPE_VOID
dd offset ca_retint ;; FFI_TYPE_INT
dd offset ca_retfloat ;; FFI_TYPE_FLOAT
dd offset ca_retdouble ;; FFI_TYPE_DOUBLE
dd offset ca_retlongdouble ;; FFI_TYPE_LONGDOUBLE
dd offset ca_retuint8 ;; FFI_TYPE_UINT8
dd offset ca_retsint8 ;; FFI_TYPE_SINT8
dd offset ca_retuint16 ;; FFI_TYPE_UINT16
dd offset ca_retsint16 ;; FFI_TYPE_SINT16
dd offset ca_retint ;; FFI_TYPE_UINT32
dd offset ca_retint ;; FFI_TYPE_SINT32
dd offset ca_retint64 ;; FFI_TYPE_UINT64
dd offset ca_retint64 ;; FFI_TYPE_SINT64
dd offset ca_epilogue ;; FFI_TYPE_STRUCT
dd offset ca_retint ;; FFI_TYPE_POINTER
dd offset ca_retstruct1b ;; FFI_TYPE_SMALL_STRUCT_1B
dd offset ca_retstruct2b ;; FFI_TYPE_SMALL_STRUCT_2B
dd offset ca_retint ;; FFI_TYPE_SMALL_STRUCT_4B
dd offset ca_epilogue ;; FFI_TYPE_MS_STRUCT
/* Sign/zero extend as appropriate. */
ca_retuint8:
movzx eax, al
jmp ca_retint
ca_retsint8:
movsx eax, al
jmp ca_retint
ca_retuint16:
movzx eax, ax
jmp ca_retint
ca_retsint16:
movsx eax, ax
jmp ca_retint
ca_retint:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
mov [ecx + 0], eax
jmp ca_epilogue
ca_retint64:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
mov [ecx + 0], eax
mov [ecx + 4], edx
jmp ca_epilogue
ca_retfloat:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
fstp DWORD PTR [ecx]
jmp ca_epilogue
ca_retdouble:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
fstp QWORD PTR [ecx]
jmp ca_epilogue
ca_retlongdouble:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
fstp TBYTE PTR [ecx]
jmp ca_epilogue
ca_retstruct1b:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
mov [ecx + 0], al
jmp ca_epilogue
ca_retstruct2b:
;; Load %ecx with the pointer to storage for the return value
mov ecx, rvalue
mov [ecx + 0], ax
jmp ca_epilogue
ca_epilogue:
;; Epilogue code is autogenerated.
ret
ffi_call_win32 ENDP
ffi_closure_THISCALL PROC NEAR
;; Insert the register argument on the stack as the first argument
xchg DWORD PTR [esp+4], ecx
xchg DWORD PTR [esp], ecx
push ecx
jmp ffi_closure_STDCALL
ffi_closure_THISCALL ENDP
ffi_closure_SYSV PROC NEAR FORCEFRAME
;; the ffi_closure ctx is passed in eax by the trampoline.
sub esp, 40
lea edx, [ebp - 24]
mov [ebp - 12], edx ;; resp
lea edx, [ebp + 8]
stub::
mov [esp + 8], edx ;; args
lea edx, [ebp - 12]
mov [esp + 4], edx ;; &resp
mov [esp], eax ;; closure
call ffi_closure_SYSV_inner
mov ecx, [ebp - 12]
cs_jumptable:
jmp [cs_jumpdata + 4 * eax]
cs_jumpdata:
;; Do not insert anything here between the label and jump table.
dd offset cs_epilogue ;; FFI_TYPE_VOID
dd offset cs_retint ;; FFI_TYPE_INT
dd offset cs_retfloat ;; FFI_TYPE_FLOAT
dd offset cs_retdouble ;; FFI_TYPE_DOUBLE
dd offset cs_retlongdouble ;; FFI_TYPE_LONGDOUBLE
dd offset cs_retuint8 ;; FFI_TYPE_UINT8
dd offset cs_retsint8 ;; FFI_TYPE_SINT8
dd offset cs_retuint16 ;; FFI_TYPE_UINT16
dd offset cs_retsint16 ;; FFI_TYPE_SINT16
dd offset cs_retint ;; FFI_TYPE_UINT32
dd offset cs_retint ;; FFI_TYPE_SINT32
dd offset cs_retint64 ;; FFI_TYPE_UINT64
dd offset cs_retint64 ;; FFI_TYPE_SINT64
dd offset cs_retstruct ;; FFI_TYPE_STRUCT
dd offset cs_retint ;; FFI_TYPE_POINTER
dd offset cs_retsint8 ;; FFI_TYPE_SMALL_STRUCT_1B
dd offset cs_retsint16 ;; FFI_TYPE_SMALL_STRUCT_2B
dd offset cs_retint ;; FFI_TYPE_SMALL_STRUCT_4B
dd offset cs_retmsstruct ;; FFI_TYPE_MS_STRUCT
cs_retuint8:
movzx eax, BYTE PTR [ecx]
jmp cs_epilogue
cs_retsint8:
movsx eax, BYTE PTR [ecx]
jmp cs_epilogue
cs_retuint16:
movzx eax, WORD PTR [ecx]
jmp cs_epilogue
cs_retsint16:
movsx eax, WORD PTR [ecx]
jmp cs_epilogue
cs_retint:
mov eax, [ecx]
jmp cs_epilogue
cs_retint64:
mov eax, [ecx + 0]
mov edx, [ecx + 4]
jmp cs_epilogue
cs_retfloat:
fld DWORD PTR [ecx]
jmp cs_epilogue
cs_retdouble:
fld QWORD PTR [ecx]
jmp cs_epilogue
cs_retlongdouble:
fld TBYTE PTR [ecx]
jmp cs_epilogue
cs_retstruct:
;; Caller expects us to pop struct return value pointer hidden arg.
;; Epilogue code is autogenerated.
ret 4
cs_retmsstruct:
;; Caller expects us to return a pointer to the real return value.
mov eax, ecx
;; Caller doesn't expects us to pop struct return value pointer hidden arg.
jmp cs_epilogue
cs_epilogue:
;; Epilogue code is autogenerated.
ret
ffi_closure_SYSV ENDP
#if !FFI_NO_RAW_API
#define RAW_CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) AND NOT 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
ffi_closure_raw_THISCALL PROC NEAR USES esi FORCEFRAME
sub esp, 36
mov esi, [eax + RAW_CLOSURE_CIF_OFFSET] ;; closure->cif
mov edx, [eax + RAW_CLOSURE_USER_DATA_OFFSET] ;; closure->user_data
mov [esp + 12], edx
lea edx, [ebp + 12]
jmp stubraw
ffi_closure_raw_THISCALL ENDP
ffi_closure_raw_SYSV PROC NEAR USES esi FORCEFRAME
;; the ffi_closure ctx is passed in eax by the trampoline.
sub esp, 40
mov esi, [eax + RAW_CLOSURE_CIF_OFFSET] ;; closure->cif
mov edx, [eax + RAW_CLOSURE_USER_DATA_OFFSET] ;; closure->user_data
mov [esp + 12], edx ;; user_data
lea edx, [ebp + 8]
stubraw::
mov [esp + 8], edx ;; raw_args
lea edx, [ebp - 24]
mov [esp + 4], edx ;; &res
mov [esp], esi ;; cif
call DWORD PTR [eax + RAW_CLOSURE_FUN_OFFSET] ;; closure->fun
mov eax, [esi + CIF_FLAGS_OFFSET] ;; cif->flags
lea ecx, [ebp - 24]
cr_jumptable:
jmp [cr_jumpdata + 4 * eax]
cr_jumpdata:
;; Do not insert anything here between the label and jump table.
dd offset cr_epilogue ;; FFI_TYPE_VOID
dd offset cr_retint ;; FFI_TYPE_INT
dd offset cr_retfloat ;; FFI_TYPE_FLOAT
dd offset cr_retdouble ;; FFI_TYPE_DOUBLE
dd offset cr_retlongdouble ;; FFI_TYPE_LONGDOUBLE
dd offset cr_retuint8 ;; FFI_TYPE_UINT8
dd offset cr_retsint8 ;; FFI_TYPE_SINT8
dd offset cr_retuint16 ;; FFI_TYPE_UINT16
dd offset cr_retsint16 ;; FFI_TYPE_SINT16
dd offset cr_retint ;; FFI_TYPE_UINT32
dd offset cr_retint ;; FFI_TYPE_SINT32
dd offset cr_retint64 ;; FFI_TYPE_UINT64
dd offset cr_retint64 ;; FFI_TYPE_SINT64
dd offset cr_epilogue ;; FFI_TYPE_STRUCT
dd offset cr_retint ;; FFI_TYPE_POINTER
dd offset cr_retsint8 ;; FFI_TYPE_SMALL_STRUCT_1B
dd offset cr_retsint16 ;; FFI_TYPE_SMALL_STRUCT_2B
dd offset cr_retint ;; FFI_TYPE_SMALL_STRUCT_4B
dd offset cr_epilogue ;; FFI_TYPE_MS_STRUCT
cr_retuint8:
movzx eax, BYTE PTR [ecx]
jmp cr_epilogue
cr_retsint8:
movsx eax, BYTE PTR [ecx]
jmp cr_epilogue
cr_retuint16:
movzx eax, WORD PTR [ecx]
jmp cr_epilogue
cr_retsint16:
movsx eax, WORD PTR [ecx]
jmp cr_epilogue
cr_retint:
mov eax, [ecx]
jmp cr_epilogue
cr_retint64:
mov eax, [ecx + 0]
mov edx, [ecx + 4]
jmp cr_epilogue
cr_retfloat:
fld DWORD PTR [ecx]
jmp cr_epilogue
cr_retdouble:
fld QWORD PTR [ecx]
jmp cr_epilogue
cr_retlongdouble:
fld TBYTE PTR [ecx]
jmp cr_epilogue
cr_epilogue:
;; Epilogue code is autogenerated.
ret
ffi_closure_raw_SYSV ENDP
#endif /* !FFI_NO_RAW_API */
ffi_closure_STDCALL PROC NEAR FORCEFRAME
;; the ffi_closure ctx is passed in eax by the trampoline.
sub esp, 40
lea edx, [ebp - 24]
mov [ebp - 12], edx ;; resp
lea edx, [ebp + 12] ;; account for stub return address on stack
mov [esp + 8], edx ;; args
lea edx, [ebp - 12]
mov [esp + 4], edx ;; &resp
mov [esp], eax ;; closure
call ffi_closure_SYSV_inner
mov ecx, [ebp - 12]
cd_jumptable:
jmp [cd_jumpdata + 4 * eax]
cd_jumpdata:
;; Do not insert anything here between the label and jump table.
dd offset cd_epilogue ;; FFI_TYPE_VOID
dd offset cd_retint ;; FFI_TYPE_INT
dd offset cd_retfloat ;; FFI_TYPE_FLOAT
dd offset cd_retdouble ;; FFI_TYPE_DOUBLE
dd offset cd_retlongdouble ;; FFI_TYPE_LONGDOUBLE
dd offset cd_retuint8 ;; FFI_TYPE_UINT8
dd offset cd_retsint8 ;; FFI_TYPE_SINT8
dd offset cd_retuint16 ;; FFI_TYPE_UINT16
dd offset cd_retsint16 ;; FFI_TYPE_SINT16
dd offset cd_retint ;; FFI_TYPE_UINT32
dd offset cd_retint ;; FFI_TYPE_SINT32
dd offset cd_retint64 ;; FFI_TYPE_UINT64
dd offset cd_retint64 ;; FFI_TYPE_SINT64
dd offset cd_epilogue ;; FFI_TYPE_STRUCT
dd offset cd_retint ;; FFI_TYPE_POINTER
dd offset cd_retsint8 ;; FFI_TYPE_SMALL_STRUCT_1B
dd offset cd_retsint16 ;; FFI_TYPE_SMALL_STRUCT_2B
dd offset cd_retint ;; FFI_TYPE_SMALL_STRUCT_4B
cd_retuint8:
movzx eax, BYTE PTR [ecx]
jmp cd_epilogue
cd_retsint8:
movsx eax, BYTE PTR [ecx]
jmp cd_epilogue
cd_retuint16:
movzx eax, WORD PTR [ecx]
jmp cd_epilogue
cd_retsint16:
movsx eax, WORD PTR [ecx]
jmp cd_epilogue
cd_retint:
mov eax, [ecx]
jmp cd_epilogue
cd_retint64:
mov eax, [ecx + 0]
mov edx, [ecx + 4]
jmp cd_epilogue
cd_retfloat:
fld DWORD PTR [ecx]
jmp cd_epilogue
cd_retdouble:
fld QWORD PTR [ecx]
jmp cd_epilogue
cd_retlongdouble:
fld TBYTE PTR [ecx]
jmp cd_epilogue
cd_epilogue:
mov esp, ebp
pop ebp
pop ecx
mov ecx, DWORD PTR [ecx + (CLOSURE_CIF_OFFSET-10)]
cmp DWORD PTR [ecx + CIF_ABI_OFFSET], 3
mov ecx, DWORD PTR [ecx + CIF_BYTES_OFFSET]
jne cd_not_thiscall
add ecx, 4
cd_not_thiscall:
pop edx
add esp, ecx
jmp edx
ffi_closure_STDCALL ENDP
_TEXT ENDS
END
#else
#define CLOSURE_CIF_OFFSET ((FFI_TRAMPOLINE_SIZE + 3) & ~3)
#if defined(SYMBOL_UNDERSCORE)
#define USCORE_SYMBOL(x) _##x
#else
#define USCORE_SYMBOL(x) x
#endif
.text
# This assumes we are using gas.
.balign 16
FFI_HIDDEN(ffi_call_win32)
.globl USCORE_SYMBOL(ffi_call_win32)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_call_win32; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_call_win32):
.LFB1:
pushl %ebp
.LCFI0:
movl %esp,%ebp
.LCFI1:
# Make room for all of the new args.
movl 20(%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
# Handle fastcall and thiscall
cmpl $3, 16(%ebp) # FFI_THISCALL
jz .do_thiscall
cmpl $4, 16(%ebp) # FFI_FASTCALL
jnz .do_fncall
movl (%esp), %ecx
movl 4(%esp), %edx
addl $8, %esp
jmp .do_fncall
.do_thiscall:
movl (%esp), %ecx
addl $4, %esp
.do_fncall:
# FIXME: Align the stack to a 128-bit boundary to avoid
# potential performance hits.
call *32(%ebp)
# stdcall functions pop arguments off the stack themselves
# Load %ecx with the return type code
movl 24(%ebp),%ecx
# If the return value pointer is NULL, assume no return value.
cmpl $0,28(%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 .Lnoretval
fstp %st(0)
jmp .Lepilogue
0:
call 1f
# Do not insert anything here between the call and the jump table.
.Lstore_table:
.long .Lnoretval-.Lstore_table /* FFI_TYPE_VOID */
.long .Lretint-.Lstore_table /* FFI_TYPE_INT */
.long .Lretfloat-.Lstore_table /* FFI_TYPE_FLOAT */
.long .Lretdouble-.Lstore_table /* FFI_TYPE_DOUBLE */
.long .Lretlongdouble-.Lstore_table /* FFI_TYPE_LONGDOUBLE */
.long .Lretuint8-.Lstore_table /* FFI_TYPE_UINT8 */
.long .Lretsint8-.Lstore_table /* FFI_TYPE_SINT8 */
.long .Lretuint16-.Lstore_table /* FFI_TYPE_UINT16 */
.long .Lretsint16-.Lstore_table /* FFI_TYPE_SINT16 */
.long .Lretint-.Lstore_table /* FFI_TYPE_UINT32 */
.long .Lretint-.Lstore_table /* FFI_TYPE_SINT32 */
.long .Lretint64-.Lstore_table /* FFI_TYPE_UINT64 */
.long .Lretint64-.Lstore_table /* FFI_TYPE_SINT64 */
.long .Lretstruct-.Lstore_table /* FFI_TYPE_STRUCT */
.long .Lretint-.Lstore_table /* FFI_TYPE_POINTER */
.long .Lretstruct1b-.Lstore_table /* FFI_TYPE_SMALL_STRUCT_1B */
.long .Lretstruct2b-.Lstore_table /* FFI_TYPE_SMALL_STRUCT_2B */
.long .Lretstruct4b-.Lstore_table /* FFI_TYPE_SMALL_STRUCT_4B */
.long .Lretstruct-.Lstore_table /* FFI_TYPE_MS_STRUCT */
1:
shl $2, %ecx
add (%esp),%ecx
mov (%ecx),%ecx
add (%esp),%ecx
add $4, %esp
jmp *%ecx
/* Sign/zero extend as appropriate. */
.Lretsint8:
movsbl %al, %eax
jmp .Lretint
.Lretsint16:
movswl %ax, %eax
jmp .Lretint
.Lretuint8:
movzbl %al, %eax
jmp .Lretint
.Lretuint16:
movzwl %ax, %eax
jmp .Lretint
.Lretint:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
movl %eax,0(%ecx)
jmp .Lepilogue
.Lretfloat:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
fstps (%ecx)
jmp .Lepilogue
.Lretdouble:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
fstpl (%ecx)
jmp .Lepilogue
.Lretlongdouble:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
fstpt (%ecx)
jmp .Lepilogue
.Lretint64:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
movl %eax,0(%ecx)
movl %edx,4(%ecx)
jmp .Lepilogue
.Lretstruct1b:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
movb %al,0(%ecx)
jmp .Lepilogue
.Lretstruct2b:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
movw %ax,0(%ecx)
jmp .Lepilogue
.Lretstruct4b:
# Load %ecx with the pointer to storage for the return value
movl 28(%ebp),%ecx
movl %eax,0(%ecx)
jmp .Lepilogue
.Lretstruct:
# Nothing to do!
.Lnoretval:
.Lepilogue:
movl %ebp,%esp
popl %ebp
ret
.ffi_call_win32_end:
.balign 16
FFI_HIDDEN(ffi_closure_THISCALL)
.globl USCORE_SYMBOL(ffi_closure_THISCALL)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_closure_THISCALL; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_closure_THISCALL):
/* Insert the register argument on the stack as the first argument */
xchg %ecx, 4(%esp)
xchg %ecx, (%esp)
push %ecx
jmp .ffi_closure_STDCALL_internal
.LFE1:
# This assumes we are using gas.
.balign 16
FFI_HIDDEN(ffi_closure_SYSV)
#if defined(X86_WIN32)
.globl USCORE_SYMBOL(ffi_closure_SYSV)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_closure_SYSV; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_closure_SYSV):
#endif
.LFB3:
pushl %ebp
.LCFI4:
movl %esp, %ebp
.LCFI5:
subl $40, %esp
leal -24(%ebp), %edx
movl %edx, -12(%ebp) /* resp */
leal 8(%ebp), %edx
movl %edx, 4(%esp) /* args = __builtin_dwarf_cfa () */
leal -12(%ebp), %edx
movl %edx, (%esp) /* &resp */
#if defined(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE) || !defined(__PIC__)
call USCORE_SYMBOL(ffi_closure_SYSV_inner)
#elif defined(X86_DARWIN)
calll L_ffi_closure_SYSV_inner$stub
#else
movl %ebx, 8(%esp)
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
0:
call 1f
# Do not insert anything here between the call and the jump table.
.Lcls_store_table:
.long .Lcls_noretval-.Lcls_store_table /* FFI_TYPE_VOID */
.long .Lcls_retint-.Lcls_store_table /* FFI_TYPE_INT */
.long .Lcls_retfloat-.Lcls_store_table /* FFI_TYPE_FLOAT */
.long .Lcls_retdouble-.Lcls_store_table /* FFI_TYPE_DOUBLE */
.long .Lcls_retldouble-.Lcls_store_table /* FFI_TYPE_LONGDOUBLE */
.long .Lcls_retuint8-.Lcls_store_table /* FFI_TYPE_UINT8 */
.long .Lcls_retsint8-.Lcls_store_table /* FFI_TYPE_SINT8 */
.long .Lcls_retuint16-.Lcls_store_table /* FFI_TYPE_UINT16 */
.long .Lcls_retsint16-.Lcls_store_table /* FFI_TYPE_SINT16 */
.long .Lcls_retint-.Lcls_store_table /* FFI_TYPE_UINT32 */
.long .Lcls_retint-.Lcls_store_table /* FFI_TYPE_SINT32 */
.long .Lcls_retllong-.Lcls_store_table /* FFI_TYPE_UINT64 */
.long .Lcls_retllong-.Lcls_store_table /* FFI_TYPE_SINT64 */
.long .Lcls_retstruct-.Lcls_store_table /* FFI_TYPE_STRUCT */
.long .Lcls_retint-.Lcls_store_table /* FFI_TYPE_POINTER */
.long .Lcls_retstruct1-.Lcls_store_table /* FFI_TYPE_SMALL_STRUCT_1B */
.long .Lcls_retstruct2-.Lcls_store_table /* FFI_TYPE_SMALL_STRUCT_2B */
.long .Lcls_retstruct4-.Lcls_store_table /* FFI_TYPE_SMALL_STRUCT_4B */
.long .Lcls_retmsstruct-.Lcls_store_table /* FFI_TYPE_MS_STRUCT */
1:
shl $2, %eax
add (%esp),%eax
mov (%eax),%eax
add (%esp),%eax
add $4, %esp
jmp *%eax
/* Sign/zero extend as appropriate. */
.Lcls_retsint8:
movsbl (%ecx), %eax
jmp .Lcls_epilogue
.Lcls_retsint16:
movswl (%ecx), %eax
jmp .Lcls_epilogue
.Lcls_retuint8:
movzbl (%ecx), %eax
jmp .Lcls_epilogue
.Lcls_retuint16:
movzwl (%ecx), %eax
jmp .Lcls_epilogue
.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_retstruct4:
movl (%ecx), %eax
jmp .Lcls_epilogue
.Lcls_retstruct:
# Caller expects us to pop struct return value pointer hidden arg.
movl %ebp, %esp
popl %ebp
ret $0x4
.Lcls_retmsstruct:
# Caller expects us to return a pointer to the real return value.
mov %ecx, %eax
# Caller doesn't expects us to pop struct return value pointer hidden arg.
jmp .Lcls_epilogue
.Lcls_noretval:
.Lcls_epilogue:
movl %ebp, %esp
popl %ebp
ret
.ffi_closure_SYSV_end:
.LFE3:
#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
#ifdef X86_WIN32
.balign 16
FFI_HIDDEN(ffi_closure_raw_THISCALL)
.globl USCORE_SYMBOL(ffi_closure_raw_THISCALL)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_closure_raw_THISCALL; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_closure_raw_THISCALL):
pushl %ebp
movl %esp, %ebp
pushl %esi
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 12(%ebp), %edx /* __builtin_dwarf_cfa () */
jmp .stubraw
#endif /* X86_WIN32 */
# This assumes we are using gas.
.balign 16
#if defined(X86_WIN32)
.globl USCORE_SYMBOL(ffi_closure_raw_SYSV)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_closure_raw_SYSV; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_closure_raw_SYSV):
#endif /* defined(X86_WIN32) */
.LFB4:
pushl %ebp
.LCFI6:
movl %esp, %ebp
.LCFI7:
pushl %esi
.LCFI8:
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 () */
.stubraw:
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 */
0:
call 1f
# Do not insert anything here between the call and the jump table.
.Lrcls_store_table:
.long .Lrcls_noretval-.Lrcls_store_table /* FFI_TYPE_VOID */
.long .Lrcls_retint-.Lrcls_store_table /* FFI_TYPE_INT */
.long .Lrcls_retfloat-.Lrcls_store_table /* FFI_TYPE_FLOAT */
.long .Lrcls_retdouble-.Lrcls_store_table /* FFI_TYPE_DOUBLE */
.long .Lrcls_retldouble-.Lrcls_store_table /* FFI_TYPE_LONGDOUBLE */
.long .Lrcls_retuint8-.Lrcls_store_table /* FFI_TYPE_UINT8 */
.long .Lrcls_retsint8-.Lrcls_store_table /* FFI_TYPE_SINT8 */
.long .Lrcls_retuint16-.Lrcls_store_table /* FFI_TYPE_UINT16 */
.long .Lrcls_retsint16-.Lrcls_store_table /* FFI_TYPE_SINT16 */
.long .Lrcls_retint-.Lrcls_store_table /* FFI_TYPE_UINT32 */
.long .Lrcls_retint-.Lrcls_store_table /* FFI_TYPE_SINT32 */
.long .Lrcls_retllong-.Lrcls_store_table /* FFI_TYPE_UINT64 */
.long .Lrcls_retllong-.Lrcls_store_table /* FFI_TYPE_SINT64 */
.long .Lrcls_retstruct-.Lrcls_store_table /* FFI_TYPE_STRUCT */
.long .Lrcls_retint-.Lrcls_store_table /* FFI_TYPE_POINTER */
.long .Lrcls_retstruct1-.Lrcls_store_table /* FFI_TYPE_SMALL_STRUCT_1B */
.long .Lrcls_retstruct2-.Lrcls_store_table /* FFI_TYPE_SMALL_STRUCT_2B */
.long .Lrcls_retstruct4-.Lrcls_store_table /* FFI_TYPE_SMALL_STRUCT_4B */
.long .Lrcls_retstruct-.Lrcls_store_table /* FFI_TYPE_MS_STRUCT */
1:
shl $2, %eax
add (%esp),%eax
mov (%eax),%eax
add (%esp),%eax
add $4, %esp
jmp *%eax
/* Sign/zero extend as appropriate. */
.Lrcls_retsint8:
movsbl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retsint16:
movswl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retuint8:
movzbl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retuint16:
movzwl -24(%ebp), %eax
jmp .Lrcls_epilogue
.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
.Lrcls_retstruct1:
movsbl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retstruct2:
movswl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retstruct4:
movl -24(%ebp), %eax
jmp .Lrcls_epilogue
.Lrcls_retstruct:
# Nothing to do!
.Lrcls_noretval:
.Lrcls_epilogue:
addl $36, %esp
popl %esi
popl %ebp
ret
.ffi_closure_raw_SYSV_end:
.LFE4:
#endif /* !FFI_NO_RAW_API */
# This assumes we are using gas.
.balign 16
FFI_HIDDEN(ffi_closure_STDCALL)
.globl USCORE_SYMBOL(ffi_closure_STDCALL)
#if defined(X86_WIN32) && !defined(__OS2__)
.def _ffi_closure_STDCALL; .scl 2; .type 32; .endef
#endif
USCORE_SYMBOL(ffi_closure_STDCALL):
.ffi_closure_STDCALL_internal:
.LFB5:
pushl %ebp
.LCFI9:
movl %esp, %ebp
.LCFI10:
subl $40, %esp
leal -24(%ebp), %edx
movl %edx, -12(%ebp) /* resp */
leal 12(%ebp), %edx /* account for stub return address on stack */
movl %edx, 4(%esp) /* args */
leal -12(%ebp), %edx
movl %edx, (%esp) /* &resp */
#if defined(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE) || !defined(__PIC__)
call USCORE_SYMBOL(ffi_closure_SYSV_inner)
#elif defined(X86_DARWIN)
calll L_ffi_closure_SYSV_inner$stub
#else
movl %ebx, 8(%esp)
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
0:
call 1f
# Do not insert anything here between the call and the jump table.
.Lscls_store_table:
.long .Lscls_noretval-.Lscls_store_table /* FFI_TYPE_VOID */
.long .Lscls_retint-.Lscls_store_table /* FFI_TYPE_INT */
.long .Lscls_retfloat-.Lscls_store_table /* FFI_TYPE_FLOAT */
.long .Lscls_retdouble-.Lscls_store_table /* FFI_TYPE_DOUBLE */
.long .Lscls_retldouble-.Lscls_store_table /* FFI_TYPE_LONGDOUBLE */
.long .Lscls_retuint8-.Lscls_store_table /* FFI_TYPE_UINT8 */
.long .Lscls_retsint8-.Lscls_store_table /* FFI_TYPE_SINT8 */
.long .Lscls_retuint16-.Lscls_store_table /* FFI_TYPE_UINT16 */
.long .Lscls_retsint16-.Lscls_store_table /* FFI_TYPE_SINT16 */
.long .Lscls_retint-.Lscls_store_table /* FFI_TYPE_UINT32 */
.long .Lscls_retint-.Lscls_store_table /* FFI_TYPE_SINT32 */
.long .Lscls_retllong-.Lscls_store_table /* FFI_TYPE_UINT64 */
.long .Lscls_retllong-.Lscls_store_table /* FFI_TYPE_SINT64 */
.long .Lscls_retstruct-.Lscls_store_table /* FFI_TYPE_STRUCT */
.long .Lscls_retint-.Lscls_store_table /* FFI_TYPE_POINTER */
.long .Lscls_retstruct1-.Lscls_store_table /* FFI_TYPE_SMALL_STRUCT_1B */
.long .Lscls_retstruct2-.Lscls_store_table /* FFI_TYPE_SMALL_STRUCT_2B */
.long .Lscls_retstruct4-.Lscls_store_table /* FFI_TYPE_SMALL_STRUCT_4B */
1:
shl $2, %eax
add (%esp),%eax
mov (%eax),%eax
add (%esp),%eax
add $4, %esp
jmp *%eax
/* Sign/zero extend as appropriate. */
.Lscls_retsint8:
movsbl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retsint16:
movswl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retuint8:
movzbl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retuint16:
movzwl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retint:
movl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retfloat:
flds (%ecx)
jmp .Lscls_epilogue
.Lscls_retdouble:
fldl (%ecx)
jmp .Lscls_epilogue
.Lscls_retldouble:
fldt (%ecx)
jmp .Lscls_epilogue
.Lscls_retllong:
movl (%ecx), %eax
movl 4(%ecx), %edx
jmp .Lscls_epilogue
.Lscls_retstruct1:
movsbl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retstruct2:
movswl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retstruct4:
movl (%ecx), %eax
jmp .Lscls_epilogue
.Lscls_retstruct:
# Nothing to do!
.Lscls_noretval:
.Lscls_epilogue:
movl %ebp, %esp
popl %ebp
popl %ecx
movl (CLOSURE_CIF_OFFSET-10)(%ecx), %ecx
cmpl $3, CIF_ABI_OFFSET(%ecx) /* FFI_THISCALL */
movl CIF_BYTES_OFFSET(%ecx), %ecx
jne 1f
addl $4, %ecx
1: popl %edx
addl %ecx, %esp
jmp *%edx
.ffi_closure_STDCALL_end:
.LFE5:
#if defined(X86_DARWIN)
.section __IMPORT,__jump_table,symbol_stubs,self_modifying_code+pure_instructions,5
L_ffi_closure_SYSV_inner$stub:
.indirect_symbol _ffi_closure_SYSV_inner
hlt ; hlt ; hlt ; hlt ; hlt
#endif
#if defined(X86_WIN32) && !defined(__OS2__)
.section .eh_frame,"w"
#endif
.Lframe1:
.LSCIE1:
.long .LECIE1-.LASCIE1 /* Length of Common Information Entry */
.LASCIE1:
.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 CFA = r4 + 4 = 4(%esp) */
.byte 0x4 /* .uleb128 0x4 */
.byte 0x4 /* .uleb128 0x4 */
.byte 0x88 /* DW_CFA_offset, column 0x8 %eip at CFA + 1 * -4 */
.byte 0x1 /* .uleb128 0x1 */
.align 4
.LECIE1:
.LSFDE1:
.long .LEFDE1-.LASFDE1 /* FDE Length */
.LASFDE1:
.long .LASFDE1-.Lframe1 /* FDE CIE offset */
#if defined __PIC__ && defined HAVE_AS_X86_PCREL
.long .LFB1-. /* FDE initial location */
#else
.long .LFB1
#endif
.long .LFE1-.LFB1 /* FDE address range */
#ifdef __PIC__
.byte 0x0 /* .uleb128 0x0; Augmentation size */
#endif
/* DW_CFA_xxx CFI instructions go here. */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI0-.LFB1
.byte 0xe /* DW_CFA_def_cfa_offset CFA = r4 + 8 = 8(%esp) */
.byte 0x8 /* .uleb128 0x8 */
.byte 0x85 /* DW_CFA_offset, column 0x5 %ebp at CFA + 2 * -4 */
.byte 0x2 /* .uleb128 0x2 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI1-.LCFI0
.byte 0xd /* DW_CFA_def_cfa_register CFA = r5 = %ebp */
.byte 0x5 /* .uleb128 0x5 */
/* End of DW_CFA_xxx CFI instructions. */
.align 4
.LEFDE1:
.LSFDE3:
.long .LEFDE3-.LASFDE3 /* FDE Length */
.LASFDE3:
.long .LASFDE3-.Lframe1 /* FDE CIE offset */
#if defined __PIC__ && defined HAVE_AS_X86_PCREL
.long .LFB3-. /* FDE initial location */
#else
.long .LFB3
#endif
.long .LFE3-.LFB3 /* FDE address range */
#ifdef __PIC__
.byte 0x0 /* .uleb128 0x0; Augmentation size */
#endif
/* DW_CFA_xxx CFI instructions go here. */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI4-.LFB3
.byte 0xe /* DW_CFA_def_cfa_offset CFA = r4 + 8 = 8(%esp) */
.byte 0x8 /* .uleb128 0x8 */
.byte 0x85 /* DW_CFA_offset, column 0x5 %ebp at CFA + 2 * -4 */
.byte 0x2 /* .uleb128 0x2 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI5-.LCFI4
.byte 0xd /* DW_CFA_def_cfa_register CFA = r5 = %ebp */
.byte 0x5 /* .uleb128 0x5 */
/* End of DW_CFA_xxx CFI instructions. */
.align 4
.LEFDE3:
#if !FFI_NO_RAW_API
.LSFDE4:
.long .LEFDE4-.LASFDE4 /* FDE Length */
.LASFDE4:
.long .LASFDE4-.Lframe1 /* FDE CIE offset */
#if defined __PIC__ && defined HAVE_AS_X86_PCREL
.long .LFB4-. /* FDE initial location */
#else
.long .LFB4
#endif
.long .LFE4-.LFB4 /* FDE address range */
#ifdef __PIC__
.byte 0x0 /* .uleb128 0x0; Augmentation size */
#endif
/* DW_CFA_xxx CFI instructions go here. */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI6-.LFB4
.byte 0xe /* DW_CFA_def_cfa_offset CFA = r4 + 8 = 8(%esp) */
.byte 0x8 /* .uleb128 0x8 */
.byte 0x85 /* DW_CFA_offset, column 0x5 %ebp at CFA + 2 * -4 */
.byte 0x2 /* .uleb128 0x2 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI7-.LCFI6
.byte 0xd /* DW_CFA_def_cfa_register CFA = r5 = %ebp */
.byte 0x5 /* .uleb128 0x5 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI8-.LCFI7
.byte 0x86 /* DW_CFA_offset, column 0x6 %esi at CFA + 3 * -4 */
.byte 0x3 /* .uleb128 0x3 */
/* End of DW_CFA_xxx CFI instructions. */
.align 4
.LEFDE4:
#endif /* !FFI_NO_RAW_API */
.LSFDE5:
.long .LEFDE5-.LASFDE5 /* FDE Length */
.LASFDE5:
.long .LASFDE5-.Lframe1 /* FDE CIE offset */
#if defined __PIC__ && defined HAVE_AS_X86_PCREL
.long .LFB5-. /* FDE initial location */
#else
.long .LFB5
#endif
.long .LFE5-.LFB5 /* FDE address range */
#ifdef __PIC__
.byte 0x0 /* .uleb128 0x0; Augmentation size */
#endif
/* DW_CFA_xxx CFI instructions go here. */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI9-.LFB5
.byte 0xe /* DW_CFA_def_cfa_offset CFA = r4 + 8 = 8(%esp) */
.byte 0x8 /* .uleb128 0x8 */
.byte 0x85 /* DW_CFA_offset, column 0x5 %ebp at CFA + 2 * -4 */
.byte 0x2 /* .uleb128 0x2 */
.byte 0x4 /* DW_CFA_advance_loc4 */
.long .LCFI10-.LCFI9
.byte 0xd /* DW_CFA_def_cfa_register CFA = r5 = %ebp */
.byte 0x5 /* .uleb128 0x5 */
/* End of DW_CFA_xxx CFI instructions. */
.align 4
.LEFDE5:
#endif /* !_MSC_VER */
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