diff options
Diffstat (limited to 'js/src/ctypes/libffi/src/x86/sysv.S')
| -rw-r--r-- | js/src/ctypes/libffi/src/x86/sysv.S | 1129 |
1 files changed, 1129 insertions, 0 deletions
diff --git a/js/src/ctypes/libffi/src/x86/sysv.S b/js/src/ctypes/libffi/src/x86/sysv.S new file mode 100644 index 0000000000..b73492795d --- /dev/null +++ b/js/src/ctypes/libffi/src/x86/sysv.S @@ -0,0 +1,1129 @@ +/* ----------------------------------------------------------------------- + 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. + ----------------------------------------------------------------------- */ + +#ifdef __i386__ +#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,__text,coalesced,pure_instructions; \ + .weak_definition X; \ + FFI_HIDDEN(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 */ + +#ifdef _WIN32 + .def @feat.00; + .scl 3; + .type 0; + .endef + .globl @feat.00 +@feat.00 = 1 +#endif + +#ifdef __APPLE__ + .subsections_via_symbols + .section __LD,__compact_unwind,regular,debug + + /* compact unwind for ffi_call_i386 */ + .long C(ffi_call_i386) + .set L1,L(UW5)-L(UW0) + .long L1 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_go_closure_EAX */ + .long C(ffi_go_closure_EAX) + .set L2,L(UW8)-L(UW6) + .long L2 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_go_closure_ECX */ + .long C(ffi_go_closure_ECX) + .set L3,L(UW11)-L(UW9) + .long L3 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_closure_i386 */ + .long C(ffi_closure_i386) + .set L4,L(UW20)-L(UW12) + .long L4 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_go_closure_STDCALL */ + .long C(ffi_go_closure_STDCALL) + .set L5,L(UW23)-L(UW21) + .long L5 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_closure_REGISTER */ + .long C(ffi_closure_REGISTER) + .set L6,L(UW26)-L(UW24) + .long L6 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_closure_STDCALL */ + .long C(ffi_closure_STDCALL) + .set L7,L(UW31)-L(UW27) + .long L7 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_closure_raw_SYSV */ + .long C(ffi_closure_raw_SYSV) + .set L8,L(UW40)-L(UW32) + .long L8 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 + + /* compact unwind for ffi_closure_raw_THISCALL */ + .long C(ffi_closure_raw_THISCALL) + .set L9,L(UW52)-L(UW41) + .long L9 + .long 0x04000000 /* use dwarf unwind info */ + .long 0 + .long 0 +#endif /* __APPLE__ */ + +#endif /* ifndef _MSC_VER */ +#endif /* ifdef __i386__ */ + +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif |