blob: 27379a48a1ccdc5e2762a1b24510a243274e1c29 [file] [log] [blame]
/* -----------------------------------------------------------------------
sysv.S - Copyright (c) 2017 Anthony Green
- Copyright (c) 2013 The Written Word, Inc.
- Copyright (c) 1996,1998,2001-2003,2005,2008,2010 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 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__
#ifndef _MSC_VER
#define LIBFFI_ASM
#include <fficonfig.h>
#include <ffi.h>
#include "internal.h"
#define C2(X, Y) X ## Y
#define C1(X, Y) C2(X, Y)
#ifdef __USER_LABEL_PREFIX__
# define C(X) C1(__USER_LABEL_PREFIX__, X)
#else
# define C(X) X
#endif
#ifdef X86_DARWIN
# define L(X) C1(L, X)
#else
# define L(X) C1(.L, X)
#endif
#ifdef __ELF__
# define ENDF(X) .type X,@function; .size X, . - X
#else
# define ENDF(X)
#endif
/* Handle win32 fastcall name mangling. */
#ifdef X86_WIN32
# define ffi_call_i386 @ffi_call_i386@8
# define ffi_closure_inner @ffi_closure_inner@8
#else
# define ffi_call_i386 C(ffi_call_i386)
# define ffi_closure_inner C(ffi_closure_inner)
#endif
/* This macro allows the safe creation of jump tables without an
actual table. The entry points into the table are all 8 bytes.
The use of ORG asserts that we're at the correct location. */
/* ??? The clang assembler doesn't handle .org with symbolic expressions. */
#if defined(__clang__) || defined(__APPLE__) || (defined (__sun__) && defined(__svr4__))
# define E(BASE, X) .balign 8
#else
# define E(BASE, X) .balign 8; .org BASE + X * 8
#endif
.text
.balign 16
.globl ffi_call_i386
FFI_HIDDEN(ffi_call_i386)
/* This is declared as
void ffi_call_i386(struct call_frame *frame, char *argp)
__attribute__((fastcall));
Thus the arguments are present in
ecx: frame
edx: argp
*/
ffi_call_i386:
L(UW0):
# cfi_startproc
#if !HAVE_FASTCALL
movl 4(%esp), %ecx
movl 8(%esp), %edx
#endif
movl (%esp), %eax /* move the return address */
movl %ebp, (%ecx) /* store %ebp into local frame */
movl %eax, 4(%ecx) /* store retaddr into local frame */
/* New stack frame based off ebp. 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-4, so from the
perspective of the unwind info, it hasn't moved. */
movl %ecx, %ebp
L(UW1):
# cfi_def_cfa(%ebp, 8)
# cfi_rel_offset(%ebp, 0)
movl %edx, %esp /* set outgoing argument stack */
movl 20+R_EAX*4(%ebp), %eax /* set register arguments */
movl 20+R_EDX*4(%ebp), %edx
movl 20+R_ECX*4(%ebp), %ecx
call *8(%ebp)
movl 12(%ebp), %ecx /* load return type code */
movl %ebx, 8(%ebp) /* preserve %ebx */
L(UW2):
# cfi_rel_offset(%ebx, 8)
andl $X86_RET_TYPE_MASK, %ecx
#ifdef __PIC__
call C(__x86.get_pc_thunk.bx)
L(pc1):
leal L(store_table)-L(pc1)(%ebx, %ecx, 8), %ebx
#else
leal L(store_table)(,%ecx, 8), %ebx
#endif
movl 16(%ebp), %ecx /* load result address */
jmp *%ebx
.balign 8
L(store_table):
E(L(store_table), X86_RET_FLOAT)
fstps (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_DOUBLE)
fstpl (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_LDOUBLE)
fstpt (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_SINT8)
movsbl %al, %eax
mov %eax, (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_SINT16)
movswl %ax, %eax
mov %eax, (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_UINT8)
movzbl %al, %eax
mov %eax, (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_UINT16)
movzwl %ax, %eax
mov %eax, (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_INT64)
movl %edx, 4(%ecx)
/* fallthru */
E(L(store_table), X86_RET_INT32)
movl %eax, (%ecx)
/* fallthru */
E(L(store_table), X86_RET_VOID)
L(e1):
movl 8(%ebp), %ebx
movl %ebp, %esp
popl %ebp
L(UW3):
# cfi_remember_state
# cfi_def_cfa(%esp, 4)
# cfi_restore(%ebx)
# cfi_restore(%ebp)
ret
L(UW4):
# cfi_restore_state
E(L(store_table), X86_RET_STRUCTPOP)
jmp L(e1)
E(L(store_table), X86_RET_STRUCTARG)
jmp L(e1)
E(L(store_table), X86_RET_STRUCT_1B)
movb %al, (%ecx)
jmp L(e1)
E(L(store_table), X86_RET_STRUCT_2B)
movw %ax, (%ecx)
jmp L(e1)
/* Fill out the table so that bad values are predictable. */
E(L(store_table), X86_RET_UNUSED14)
ud2
E(L(store_table), X86_RET_UNUSED15)
ud2
L(UW5):
# cfi_endproc
ENDF(ffi_call_i386)
/* The inner helper is declared as
void ffi_closure_inner(struct closure_frame *frame, char *argp)
__attribute_((fastcall))
Thus the arguments are placed in
ecx: frame
edx: argp
*/
/* Macros to help setting up the closure_data structure. */
#if HAVE_FASTCALL
# define closure_FS (40 + 4)
# define closure_CF 0
#else
# define closure_FS (8 + 40 + 12)
# define closure_CF 8
#endif
#define FFI_CLOSURE_SAVE_REGS \
movl %eax, closure_CF+16+R_EAX*4(%esp); \
movl %edx, closure_CF+16+R_EDX*4(%esp); \
movl %ecx, closure_CF+16+R_ECX*4(%esp)
#define FFI_CLOSURE_COPY_TRAMP_DATA \
movl FFI_TRAMPOLINE_SIZE(%eax), %edx; /* copy cif */ \
movl FFI_TRAMPOLINE_SIZE+4(%eax), %ecx; /* copy fun */ \
movl FFI_TRAMPOLINE_SIZE+8(%eax), %eax; /* copy user_data */ \
movl %edx, closure_CF+28(%esp); \
movl %ecx, closure_CF+32(%esp); \
movl %eax, closure_CF+36(%esp)
#if HAVE_FASTCALL
# define FFI_CLOSURE_PREP_CALL \
movl %esp, %ecx; /* load closure_data */ \
leal closure_FS+4(%esp), %edx; /* load incoming stack */
#else
# define FFI_CLOSURE_PREP_CALL \
leal closure_CF(%esp), %ecx; /* load closure_data */ \
leal closure_FS+4(%esp), %edx; /* load incoming stack */ \
movl %ecx, (%esp); \
movl %edx, 4(%esp)
#endif
#define FFI_CLOSURE_CALL_INNER(UWN) \
call ffi_closure_inner
#define FFI_CLOSURE_MASK_AND_JUMP(N, UW) \
andl $X86_RET_TYPE_MASK, %eax; \
leal L(C1(load_table,N))(, %eax, 8), %edx; \
movl closure_CF(%esp), %eax; /* optimiztic load */ \
jmp *%edx
#ifdef __PIC__
# if defined X86_DARWIN || defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
# undef FFI_CLOSURE_MASK_AND_JUMP
# define FFI_CLOSURE_MASK_AND_JUMP(N, UW) \
andl $X86_RET_TYPE_MASK, %eax; \
call C(__x86.get_pc_thunk.dx); \
L(C1(pc,N)): \
leal L(C1(load_table,N))-L(C1(pc,N))(%edx, %eax, 8), %edx; \
movl closure_CF(%esp), %eax; /* optimiztic load */ \
jmp *%edx
# else
# define FFI_CLOSURE_CALL_INNER_SAVE_EBX
# undef FFI_CLOSURE_CALL_INNER
# define FFI_CLOSURE_CALL_INNER(UWN) \
movl %ebx, 40(%esp); /* save ebx */ \
L(C1(UW,UWN)): \
/* cfi_rel_offset(%ebx, 40); */ \
call C(__x86.get_pc_thunk.bx); /* load got register */ \
addl $C(_GLOBAL_OFFSET_TABLE_), %ebx; \
call ffi_closure_inner@PLT
# undef FFI_CLOSURE_MASK_AND_JUMP
# define FFI_CLOSURE_MASK_AND_JUMP(N, UWN) \
andl $X86_RET_TYPE_MASK, %eax; \
leal L(C1(load_table,N))@GOTOFF(%ebx, %eax, 8), %edx; \
movl 40(%esp), %ebx; /* restore ebx */ \
L(C1(UW,UWN)): \
/* cfi_restore(%ebx); */ \
movl closure_CF(%esp), %eax; /* optimiztic load */ \
jmp *%edx
# endif /* DARWIN || HIDDEN */
#endif /* __PIC__ */
.balign 16
.globl C(ffi_go_closure_EAX)
FFI_HIDDEN(C(ffi_go_closure_EAX))
C(ffi_go_closure_EAX):
L(UW6):
# cfi_startproc
subl $closure_FS, %esp
L(UW7):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
movl 4(%eax), %edx /* copy cif */
movl 8(%eax), %ecx /* copy fun */
movl %edx, closure_CF+28(%esp)
movl %ecx, closure_CF+32(%esp)
movl %eax, closure_CF+36(%esp) /* closure is user_data */
jmp L(do_closure_i386)
L(UW8):
# cfi_endproc
ENDF(C(ffi_go_closure_EAX))
.balign 16
.globl C(ffi_go_closure_ECX)
FFI_HIDDEN(C(ffi_go_closure_ECX))
C(ffi_go_closure_ECX):
L(UW9):
# cfi_startproc
subl $closure_FS, %esp
L(UW10):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
movl 4(%ecx), %edx /* copy cif */
movl 8(%ecx), %eax /* copy fun */
movl %edx, closure_CF+28(%esp)
movl %eax, closure_CF+32(%esp)
movl %ecx, closure_CF+36(%esp) /* closure is user_data */
jmp L(do_closure_i386)
L(UW11):
# cfi_endproc
ENDF(C(ffi_go_closure_ECX))
/* The closure entry points are reached from the ffi_closure trampoline.
On entry, %eax contains the address of the ffi_closure. */
.balign 16
.globl C(ffi_closure_i386)
FFI_HIDDEN(C(ffi_closure_i386))
C(ffi_closure_i386):
L(UW12):
# cfi_startproc
subl $closure_FS, %esp
L(UW13):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
FFI_CLOSURE_COPY_TRAMP_DATA
/* Entry point from preceeding Go closures. */
L(do_closure_i386):
FFI_CLOSURE_PREP_CALL
FFI_CLOSURE_CALL_INNER(14)
FFI_CLOSURE_MASK_AND_JUMP(2, 15)
.balign 8
L(load_table2):
E(L(load_table2), X86_RET_FLOAT)
flds closure_CF(%esp)
jmp L(e2)
E(L(load_table2), X86_RET_DOUBLE)
fldl closure_CF(%esp)
jmp L(e2)
E(L(load_table2), X86_RET_LDOUBLE)
fldt closure_CF(%esp)
jmp L(e2)
E(L(load_table2), X86_RET_SINT8)
movsbl %al, %eax
jmp L(e2)
E(L(load_table2), X86_RET_SINT16)
movswl %ax, %eax
jmp L(e2)
E(L(load_table2), X86_RET_UINT8)
movzbl %al, %eax
jmp L(e2)
E(L(load_table2), X86_RET_UINT16)
movzwl %ax, %eax
jmp L(e2)
E(L(load_table2), X86_RET_INT64)
movl closure_CF+4(%esp), %edx
jmp L(e2)
E(L(load_table2), X86_RET_INT32)
nop
/* fallthru */
E(L(load_table2), X86_RET_VOID)
L(e2):
addl $closure_FS, %esp
L(UW16):
# cfi_adjust_cfa_offset(-closure_FS)
ret
L(UW17):
# cfi_adjust_cfa_offset(closure_FS)
E(L(load_table2), X86_RET_STRUCTPOP)
addl $closure_FS, %esp
L(UW18):
# cfi_adjust_cfa_offset(-closure_FS)
ret $4
L(UW19):
# cfi_adjust_cfa_offset(closure_FS)
E(L(load_table2), X86_RET_STRUCTARG)
jmp L(e2)
E(L(load_table2), X86_RET_STRUCT_1B)
movzbl %al, %eax
jmp L(e2)
E(L(load_table2), X86_RET_STRUCT_2B)
movzwl %ax, %eax
jmp L(e2)
/* Fill out the table so that bad values are predictable. */
E(L(load_table2), X86_RET_UNUSED14)
ud2
E(L(load_table2), X86_RET_UNUSED15)
ud2
L(UW20):
# cfi_endproc
ENDF(C(ffi_closure_i386))
.balign 16
.globl C(ffi_go_closure_STDCALL)
FFI_HIDDEN(C(ffi_go_closure_STDCALL))
C(ffi_go_closure_STDCALL):
L(UW21):
# cfi_startproc
subl $closure_FS, %esp
L(UW22):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
movl 4(%ecx), %edx /* copy cif */
movl 8(%ecx), %eax /* copy fun */
movl %edx, closure_CF+28(%esp)
movl %eax, closure_CF+32(%esp)
movl %ecx, closure_CF+36(%esp) /* closure is user_data */
jmp L(do_closure_STDCALL)
L(UW23):
# cfi_endproc
ENDF(C(ffi_go_closure_STDCALL))
/* For REGISTER, we have no available parameter registers, and so we
enter here having pushed the closure onto the stack. */
.balign 16
.globl C(ffi_closure_REGISTER)
FFI_HIDDEN(C(ffi_closure_REGISTER))
C(ffi_closure_REGISTER):
L(UW24):
# cfi_startproc
# cfi_def_cfa(%esp, 8)
# cfi_offset(%eip, -8)
subl $closure_FS-4, %esp
L(UW25):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
movl closure_FS-4(%esp), %ecx /* load retaddr */
movl closure_FS(%esp), %eax /* load closure */
movl %ecx, closure_FS(%esp) /* move retaddr */
jmp L(do_closure_REGISTER)
L(UW26):
# cfi_endproc
ENDF(C(ffi_closure_REGISTER))
/* For STDCALL (and others), we need to pop N bytes of arguments off
the stack following the closure. The amount needing to be popped
is returned to us from ffi_closure_inner. */
.balign 16
.globl C(ffi_closure_STDCALL)
FFI_HIDDEN(C(ffi_closure_STDCALL))
C(ffi_closure_STDCALL):
L(UW27):
# cfi_startproc
subl $closure_FS, %esp
L(UW28):
# cfi_def_cfa_offset(closure_FS + 4)
FFI_CLOSURE_SAVE_REGS
/* Entry point from ffi_closure_REGISTER. */
L(do_closure_REGISTER):
FFI_CLOSURE_COPY_TRAMP_DATA
/* Entry point from preceeding Go closure. */
L(do_closure_STDCALL):
FFI_CLOSURE_PREP_CALL
FFI_CLOSURE_CALL_INNER(29)
movl %eax, %ecx
shrl $X86_RET_POP_SHIFT, %ecx /* isolate pop count */
leal closure_FS(%esp, %ecx), %ecx /* compute popped esp */
movl closure_FS(%esp), %edx /* move return address */
movl %edx, (%ecx)
/* From this point on, the value of %esp upon return is %ecx+4,
and we've copied the return address to %ecx to make return easy.
There's no point in representing this in the unwind info, as
there is always a window between the mov and the ret which
will be wrong from one point of view or another. */
FFI_CLOSURE_MASK_AND_JUMP(3, 30)
.balign 8
L(load_table3):
E(L(load_table3), X86_RET_FLOAT)
flds closure_CF(%esp)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_DOUBLE)
fldl closure_CF(%esp)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_LDOUBLE)
fldt closure_CF(%esp)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_SINT8)
movsbl %al, %eax
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_SINT16)
movswl %ax, %eax
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_UINT8)
movzbl %al, %eax
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_UINT16)
movzwl %ax, %eax
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_INT64)
movl closure_CF+4(%esp), %edx
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_INT32)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_VOID)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_STRUCTPOP)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_STRUCTARG)
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_STRUCT_1B)
movzbl %al, %eax
movl %ecx, %esp
ret
E(L(load_table3), X86_RET_STRUCT_2B)
movzwl %ax, %eax
movl %ecx, %esp
ret
/* Fill out the table so that bad values are predictable. */
E(L(load_table3), X86_RET_UNUSED14)
ud2
E(L(load_table3), X86_RET_UNUSED15)
ud2
L(UW31):
# cfi_endproc
ENDF(C(ffi_closure_STDCALL))
#if !FFI_NO_RAW_API
#define raw_closure_S_FS (16+16+12)
.balign 16
.globl C(ffi_closure_raw_SYSV)
FFI_HIDDEN(C(ffi_closure_raw_SYSV))
C(ffi_closure_raw_SYSV):
L(UW32):
# cfi_startproc
subl $raw_closure_S_FS, %esp
L(UW33):
# cfi_def_cfa_offset(raw_closure_S_FS + 4)
movl %ebx, raw_closure_S_FS-4(%esp)
L(UW34):
# cfi_rel_offset(%ebx, raw_closure_S_FS-4)
movl FFI_TRAMPOLINE_SIZE+8(%eax), %edx /* load cl->user_data */
movl %edx, 12(%esp)
leal raw_closure_S_FS+4(%esp), %edx /* load raw_args */
movl %edx, 8(%esp)
leal 16(%esp), %edx /* load &res */
movl %edx, 4(%esp)
movl FFI_TRAMPOLINE_SIZE(%eax), %ebx /* load cl->cif */
movl %ebx, (%esp)
call *FFI_TRAMPOLINE_SIZE+4(%eax) /* call cl->fun */
movl 20(%ebx), %eax /* load cif->flags */
andl $X86_RET_TYPE_MASK, %eax
#ifdef __PIC__
call C(__x86.get_pc_thunk.bx)
L(pc4):
leal L(load_table4)-L(pc4)(%ebx, %eax, 8), %ecx
#else
leal L(load_table4)(,%eax, 8), %ecx
#endif
movl raw_closure_S_FS-4(%esp), %ebx
L(UW35):
# cfi_restore(%ebx)
movl 16(%esp), %eax /* Optimistic load */
jmp *%ecx
.balign 8
L(load_table4):
E(L(load_table4), X86_RET_FLOAT)
flds 16(%esp)
jmp L(e4)
E(L(load_table4), X86_RET_DOUBLE)
fldl 16(%esp)
jmp L(e4)
E(L(load_table4), X86_RET_LDOUBLE)
fldt 16(%esp)
jmp L(e4)
E(L(load_table4), X86_RET_SINT8)
movsbl %al, %eax
jmp L(e4)
E(L(load_table4), X86_RET_SINT16)
movswl %ax, %eax
jmp L(e4)
E(L(load_table4), X86_RET_UINT8)
movzbl %al, %eax
jmp L(e4)
E(L(load_table4), X86_RET_UINT16)
movzwl %ax, %eax
jmp L(e4)
E(L(load_table4), X86_RET_INT64)
movl 16+4(%esp), %edx
jmp L(e4)
E(L(load_table4), X86_RET_INT32)
nop
/* fallthru */
E(L(load_table4), X86_RET_VOID)
L(e4):
addl $raw_closure_S_FS, %esp
L(UW36):
# cfi_adjust_cfa_offset(-raw_closure_S_FS)
ret
L(UW37):
# cfi_adjust_cfa_offset(raw_closure_S_FS)
E(L(load_table4), X86_RET_STRUCTPOP)
addl $raw_closure_S_FS, %esp
L(UW38):
# cfi_adjust_cfa_offset(-raw_closure_S_FS)
ret $4
L(UW39):
# cfi_adjust_cfa_offset(raw_closure_S_FS)
E(L(load_table4), X86_RET_STRUCTARG)
jmp L(e4)
E(L(load_table4), X86_RET_STRUCT_1B)
movzbl %al, %eax
jmp L(e4)
E(L(load_table4), X86_RET_STRUCT_2B)
movzwl %ax, %eax
jmp L(e4)
/* Fill out the table so that bad values are predictable. */
E(L(load_table4), X86_RET_UNUSED14)
ud2
E(L(load_table4), X86_RET_UNUSED15)
ud2
L(UW40):
# cfi_endproc
ENDF(C(ffi_closure_raw_SYSV))
#define raw_closure_T_FS (16+16+8)
.balign 16
.globl C(ffi_closure_raw_THISCALL)
FFI_HIDDEN(C(ffi_closure_raw_THISCALL))
C(ffi_closure_raw_THISCALL):
L(UW41):
# cfi_startproc
/* Rearrange the stack such that %ecx is the first argument.
This means moving the return address. */
popl %edx
L(UW42):
# cfi_def_cfa_offset(0)
# cfi_register(%eip, %edx)
pushl %ecx
L(UW43):
# cfi_adjust_cfa_offset(4)
pushl %edx
L(UW44):
# cfi_adjust_cfa_offset(4)
# cfi_rel_offset(%eip, 0)
subl $raw_closure_T_FS, %esp
L(UW45):
# cfi_adjust_cfa_offset(raw_closure_T_FS)
movl %ebx, raw_closure_T_FS-4(%esp)
L(UW46):
# cfi_rel_offset(%ebx, raw_closure_T_FS-4)
movl FFI_TRAMPOLINE_SIZE+8(%eax), %edx /* load cl->user_data */
movl %edx, 12(%esp)
leal raw_closure_T_FS+4(%esp), %edx /* load raw_args */
movl %edx, 8(%esp)
leal 16(%esp), %edx /* load &res */
movl %edx, 4(%esp)
movl FFI_TRAMPOLINE_SIZE(%eax), %ebx /* load cl->cif */
movl %ebx, (%esp)
call *FFI_TRAMPOLINE_SIZE+4(%eax) /* call cl->fun */
movl 20(%ebx), %eax /* load cif->flags */
andl $X86_RET_TYPE_MASK, %eax
#ifdef __PIC__
call C(__x86.get_pc_thunk.bx)
L(pc5):
leal L(load_table5)-L(pc5)(%ebx, %eax, 8), %ecx
#else
leal L(load_table5)(,%eax, 8), %ecx
#endif
movl raw_closure_T_FS-4(%esp), %ebx
L(UW47):
# cfi_restore(%ebx)
movl 16(%esp), %eax /* Optimistic load */
jmp *%ecx
.balign 8
L(load_table5):
E(L(load_table5), X86_RET_FLOAT)
flds 16(%esp)
jmp L(e5)
E(L(load_table5), X86_RET_DOUBLE)
fldl 16(%esp)
jmp L(e5)
E(L(load_table5), X86_RET_LDOUBLE)
fldt 16(%esp)
jmp L(e5)
E(L(load_table5), X86_RET_SINT8)
movsbl %al, %eax
jmp L(e5)
E(L(load_table5), X86_RET_SINT16)
movswl %ax, %eax
jmp L(e5)
E(L(load_table5), X86_RET_UINT8)
movzbl %al, %eax
jmp L(e5)
E(L(load_table5), X86_RET_UINT16)
movzwl %ax, %eax
jmp L(e5)
E(L(load_table5), X86_RET_INT64)
movl 16+4(%esp), %edx
jmp L(e5)
E(L(load_table5), X86_RET_INT32)
nop
/* fallthru */
E(L(load_table5), X86_RET_VOID)
L(e5):
addl $raw_closure_T_FS, %esp
L(UW48):
# cfi_adjust_cfa_offset(-raw_closure_T_FS)
/* Remove the extra %ecx argument we pushed. */
ret $4
L(UW49):
# cfi_adjust_cfa_offset(raw_closure_T_FS)
E(L(load_table5), X86_RET_STRUCTPOP)
addl $raw_closure_T_FS, %esp
L(UW50):
# cfi_adjust_cfa_offset(-raw_closure_T_FS)
ret $8
L(UW51):
# cfi_adjust_cfa_offset(raw_closure_T_FS)
E(L(load_table5), X86_RET_STRUCTARG)
jmp L(e5)
E(L(load_table5), X86_RET_STRUCT_1B)
movzbl %al, %eax
jmp L(e5)
E(L(load_table5), X86_RET_STRUCT_2B)
movzwl %ax, %eax
jmp L(e5)
/* Fill out the table so that bad values are predictable. */
E(L(load_table5), X86_RET_UNUSED14)
ud2
E(L(load_table5), X86_RET_UNUSED15)
ud2
L(UW52):
# cfi_endproc
ENDF(C(ffi_closure_raw_THISCALL))
#endif /* !FFI_NO_RAW_API */
#ifdef X86_DARWIN
# define COMDAT(X) \
.section __TEXT,__textcoal_nt,coalesced,pure_instructions; \
.weak_definition X; \
.private_extern X
#elif defined __ELF__ && !(defined(__sun__) && defined(__svr4__))
# define COMDAT(X) \
.section .text.X,"axG",@progbits,X,comdat; \
.globl X; \
FFI_HIDDEN(X)
#else
# define COMDAT(X)
#endif
#if defined(__PIC__)
COMDAT(C(__x86.get_pc_thunk.bx))
C(__x86.get_pc_thunk.bx):
movl (%esp), %ebx
ret
ENDF(C(__x86.get_pc_thunk.bx))
# if defined X86_DARWIN || defined HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
COMDAT(C(__x86.get_pc_thunk.dx))
C(__x86.get_pc_thunk.dx):
movl (%esp), %edx
ret
ENDF(C(__x86.get_pc_thunk.dx))
#endif /* DARWIN || HIDDEN */
#endif /* __PIC__ */
/* Sadly, OSX cctools-as doesn't understand .cfi directives at all. */
#ifdef __APPLE__
.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
EHFrame0:
#elif defined(X86_WIN32)
.section .eh_frame,"r"
#elif defined(HAVE_AS_X86_64_UNWIND_SECTION_TYPE)
.section .eh_frame,EH_FRAME_FLAGS,@unwind
#else
.section .eh_frame,EH_FRAME_FLAGS,@progbits
#endif
#ifdef HAVE_AS_X86_PCREL
# define PCREL(X) X - .
#else
# define PCREL(X) X@rel
#endif
/* Simplify advancing between labels. Assume DW_CFA_advance_loc1 fits. */
#define ADV(N, P) .byte 2, L(N)-L(P)
.balign 4
L(CIE):
.set L(set0),L(ECIE)-L(SCIE)
.long L(set0) /* CIE Length */
L(SCIE):
.long 0 /* CIE Identifier Tag */
.byte 1 /* CIE Version */
.ascii "zR\0" /* CIE Augmentation */
.byte 1 /* CIE Code Alignment Factor */
.byte 0x7c /* CIE Data Alignment Factor */
.byte 0x8 /* CIE RA Column */
.byte 1 /* Augmentation size */
.byte 0x1b /* FDE Encoding (pcrel sdata4) */
.byte 0xc, 4, 4 /* DW_CFA_def_cfa, %esp offset 4 */
.byte 0x80+8, 1 /* DW_CFA_offset, %eip offset 1*-4 */
.balign 4
L(ECIE):
.set L(set1),L(EFDE1)-L(SFDE1)
.long L(set1) /* FDE Length */
L(SFDE1):
.long L(SFDE1)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW0)) /* Initial location */
.long L(UW5)-L(UW0) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW1, UW0)
.byte 0xc, 5, 8 /* DW_CFA_def_cfa, %ebp 8 */
.byte 0x80+5, 2 /* DW_CFA_offset, %ebp 2*-4 */
ADV(UW2, UW1)
.byte 0x80+3, 0 /* DW_CFA_offset, %ebx 0*-4 */
ADV(UW3, UW2)
.byte 0xa /* DW_CFA_remember_state */
.byte 0xc, 4, 4 /* DW_CFA_def_cfa, %esp 4 */
.byte 0xc0+3 /* DW_CFA_restore, %ebx */
.byte 0xc0+5 /* DW_CFA_restore, %ebp */
ADV(UW4, UW3)
.byte 0xb /* DW_CFA_restore_state */
.balign 4
L(EFDE1):
.set L(set2),L(EFDE2)-L(SFDE2)
.long L(set2) /* FDE Length */
L(SFDE2):
.long L(SFDE2)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW6)) /* Initial location */
.long L(UW8)-L(UW6) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW7, UW6)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE2):
.set L(set3),L(EFDE3)-L(SFDE3)
.long L(set3) /* FDE Length */
L(SFDE3):
.long L(SFDE3)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW9)) /* Initial location */
.long L(UW11)-L(UW9) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW10, UW9)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE3):
.set L(set4),L(EFDE4)-L(SFDE4)
.long L(set4) /* FDE Length */
L(SFDE4):
.long L(SFDE4)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW12)) /* Initial location */
.long L(UW20)-L(UW12) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW13, UW12)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
#ifdef FFI_CLOSURE_CALL_INNER_SAVE_EBX
ADV(UW14, UW13)
.byte 0x80+3, (40-(closure_FS+4))/-4 /* DW_CFA_offset %ebx */
ADV(UW15, UW14)
.byte 0xc0+3 /* DW_CFA_restore %ebx */
ADV(UW16, UW15)
#else
ADV(UW16, UW13)
#endif
.byte 0xe, 4 /* DW_CFA_def_cfa_offset */
ADV(UW17, UW16)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
ADV(UW18, UW17)
.byte 0xe, 4 /* DW_CFA_def_cfa_offset */
ADV(UW19, UW18)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE4):
.set L(set5),L(EFDE5)-L(SFDE5)
.long L(set5) /* FDE Length */
L(SFDE5):
.long L(SFDE5)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW21)) /* Initial location */
.long L(UW23)-L(UW21) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW22, UW21)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE5):
.set L(set6),L(EFDE6)-L(SFDE6)
.long L(set6) /* FDE Length */
L(SFDE6):
.long L(SFDE6)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW24)) /* Initial location */
.long L(UW26)-L(UW24) /* Address range */
.byte 0 /* Augmentation size */
.byte 0xe, 8 /* DW_CFA_def_cfa_offset */
.byte 0x80+8, 2 /* DW_CFA_offset %eip, 2*-4 */
ADV(UW25, UW24)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE6):
.set L(set7),L(EFDE7)-L(SFDE7)
.long L(set7) /* FDE Length */
L(SFDE7):
.long L(SFDE7)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW27)) /* Initial location */
.long L(UW31)-L(UW27) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW28, UW27)
.byte 0xe, closure_FS+4 /* DW_CFA_def_cfa_offset */
#ifdef FFI_CLOSURE_CALL_INNER_SAVE_EBX
ADV(UW29, UW28)
.byte 0x80+3, (40-(closure_FS+4))/-4 /* DW_CFA_offset %ebx */
ADV(UW30, UW29)
.byte 0xc0+3 /* DW_CFA_restore %ebx */
#endif
.balign 4
L(EFDE7):
#if !FFI_NO_RAW_API
.set L(set8),L(EFDE8)-L(SFDE8)
.long L(set8) /* FDE Length */
L(SFDE8):
.long L(SFDE8)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW32)) /* Initial location */
.long L(UW40)-L(UW32) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW33, UW32)
.byte 0xe, raw_closure_S_FS+4 /* DW_CFA_def_cfa_offset */
ADV(UW34, UW33)
.byte 0x80+3, 2 /* DW_CFA_offset %ebx 2*-4 */
ADV(UW35, UW34)
.byte 0xc0+3 /* DW_CFA_restore %ebx */
ADV(UW36, UW35)
.byte 0xe, 4 /* DW_CFA_def_cfa_offset */
ADV(UW37, UW36)
.byte 0xe, raw_closure_S_FS+4 /* DW_CFA_def_cfa_offset */
ADV(UW38, UW37)
.byte 0xe, 4 /* DW_CFA_def_cfa_offset */
ADV(UW39, UW38)
.byte 0xe, raw_closure_S_FS+4 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE8):
.set L(set9),L(EFDE9)-L(SFDE9)
.long L(set9) /* FDE Length */
L(SFDE9):
.long L(SFDE9)-L(CIE) /* FDE CIE offset */
.long PCREL(L(UW41)) /* Initial location */
.long L(UW52)-L(UW41) /* Address range */
.byte 0 /* Augmentation size */
ADV(UW42, UW41)
.byte 0xe, 0 /* DW_CFA_def_cfa_offset */
.byte 0x9, 8, 2 /* DW_CFA_register %eip, %edx */
ADV(UW43, UW42)
.byte 0xe, 4 /* DW_CFA_def_cfa_offset */
ADV(UW44, UW43)
.byte 0xe, 8 /* DW_CFA_def_cfa_offset */
.byte 0x80+8, 2 /* DW_CFA_offset %eip 2*-4 */
ADV(UW45, UW44)
.byte 0xe, raw_closure_T_FS+8 /* DW_CFA_def_cfa_offset */
ADV(UW46, UW45)
.byte 0x80+3, 3 /* DW_CFA_offset %ebx 3*-4 */
ADV(UW47, UW46)
.byte 0xc0+3 /* DW_CFA_restore %ebx */
ADV(UW48, UW47)
.byte 0xe, 8 /* DW_CFA_def_cfa_offset */
ADV(UW49, UW48)
.byte 0xe, raw_closure_T_FS+8 /* DW_CFA_def_cfa_offset */
ADV(UW50, UW49)
.byte 0xe, 8 /* DW_CFA_def_cfa_offset */
ADV(UW51, UW50)
.byte 0xe, raw_closure_T_FS+8 /* DW_CFA_def_cfa_offset */
.balign 4
L(EFDE9):
#endif /* !FFI_NO_RAW_API */
#endif /* ifndef _MSC_VER */
#endif /* ifndef __x86_64__ */
#if defined __ELF__ && defined __linux__
.section .note.GNU-stack,"",@progbits
#endif