/* ** This file has been pre-processed with DynASM. ** http://luajit.org/dynasm.html ** DynASM version 1.3.0, DynASM x86 version 1.3.0 ** DO NOT EDIT! The original file is in "call_x86.dasc". */ #if DASM_VERSION != 10300 #error "Version mismatch between DynASM and included encoding engine" #endif /* vim: ts=4 sw=4 sts=4 et tw=78 * Portions copyright (c) 2015-present, Facebook, Inc. All rights reserved. * Portions copyright (c) 2011 James R. McKaskill. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */ static const unsigned char build_actionlist[1915] = { 139,141,233,255,139,141,233,139,149,233,255,137,132,253,36,233,255,137,132, 253,36,233,137,148,253,36,233,255,221.0,133,233,255,217.0,133,233,255,252, 243.0,15.0,126,133,233,255,252,243.0,15.0,90,133,233,255,221.0,156,253,36, 233,255,217.0,156,253,36,233,255,102.0,15.0,214,132,253,36,233,255,252,242.0, 15.0,90,192,102.0,15.0,214,132,253,36,233,255,252,242.0,15.0,90,192,102.0, 15.0,126,132,253,36,233,255,85,137,229,87,129.0,252,236,239,255,137,77,252, 248,137,85,252,244,255,191,237,255,199.0,68,36,8,237,199.0,68,36,4,237,137, 60,36,232,251,1,0,255,199.0,68,36,8,237,199.0,68,36,4,252,255,252,255.0,252, 255.0,252,255.0,137,60,36,232,251,1,0,255,199.0,68,36,8,237,199.0,68,36,4, 237,137,60,36,232,251,1,0,199.0,68,36,8,237,199.0,68,36,4,252,255,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,1,255,137,8,199.0,68,36,4,252,254, 252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,2,255,199.0,68,36,8,237, 199.0,68,36,4,0,0.0,0.0,0.0,137,60,36,232,251,1,1,255,137,8,137,80,4,255, 137,8,255,102.0,15.0,214,0,255,217.0,24,255,217.0,88,4,255,221.0,24,255,221.0, 88,8,255,221.0,92,36,4,137,60,36,232,251,1,3,255,15.0,182,201,137,76,36,4, 137,60,36,232,251,1,4,255,15.0,182,201,255,15.0,190,201,255,137,76,36,4,137, 60,36,232,251,1,5,255,15.0,183,201,255,15.0,191,201,255,137,76,36,4,137,60, 36,232,251,1,6,255,199.0,68,36,12,0,0.0,0.0,0.0,199.0,68,36,8,237,199.0,68, 36,4,237,137,60,36,232,251,1,7,255,199.0,68,36,8,237,199.0,68,36,4,252,254, 252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,0,199.0,68,36,12,237,199.0, 68,36,8,252,255,252,255.0,252,255.0,252,255.0,199.0,68,36,4,252,254,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,8,137,68,36,32,199.0,68,36,4,252, 252,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,9,139,68,36,32,255, 199.0,68,36,8,237,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,137, 60,36,232,251,1,0,199.0,68,36,12,237,199.0,68,36,8,252,255,252,255.0,252, 255.0,252,255.0,199.0,68,36,4,252,254,252,255.0,252,255.0,252,255.0,137,60, 36,232,251,1,10,137,68,36,32,199.0,68,36,4,252,252,252,255.0,252,255.0,252, 255.0,137,60,36,232,251,1,9,139,68,36,32,255,199.0,68,36,4,252,254,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,9,255,199.0,68,36,4,252,255,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,11,255,199.0,68,36,4,252,255,252, 255.0,252,255.0,252,255.0,137,60,36,232,251,1,12,255,137,68,36,32,199.0,68, 36,4,252,253,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,9,139,68,36, 32,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232, 251,1,13,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36, 232,251,1,14,255,137,68,36,32,137,84,36,36,199.0,68,36,4,252,253,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,9,139,68,36,32,139,84,36,36,255,199.0, 68,36,4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,15,137, 68,36,32,199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,137,60,36,232, 251,1,9,139,68,36,32,255,199.0,68,36,4,252,255,252,255.0,252,255.0,252,255.0, 137,60,36,232,251,1,16,255,221.0,92,36,32,199.0,68,36,4,252,253,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,9,221.0,68,36,32,255,199.0,68,36, 4,252,255,252,255.0,252,255.0,252,255.0,137,60,36,232,251,1,17,137,68,36, 32,137,84,36,36,199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,137,60, 36,232,251,1,9,139,68,36,32,139,84,36,36,255,199.0,68,36,4,252,255,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,18,102.0,15.0,214,68,36,32,102.0, 15.0,214,76,36,40,199.0,68,36,4,252,253,252,255.0,252,255.0,252,255.0,137, 60,36,232,251,1,9,252,243.0,15.0,126,68,36,32,252,243.0,15.0,126,76,36,40, 255,139,141,233,199.0,68,36,8,252,255,252,255.0,252,255.0,252,255.0,137,124, 36,4,137,12,36,232,251,1,18,131.0,252,236,4,199.0,68,36,4,252,253,252,255.0, 252,255.0,252,255.0,137,60,36,232,251,1,9,255,139,125,252,252,137,252,236, 93,194,236,255,85,137,229,87,86,139,189,233,131.0,252,236,16,137,60,36,232, 251,1,19,137,198,129.0,252,248,239,255,15.0,141,244,248.0,102,184,0,0.0,199.0, 68,36,4,237,137,60,36,232,251,1,20,248,2,15.0,142,244,247.0,102,184,0,0.0, 199.0,68,36,4,237,137,60,36,232,251,1,20,255,15.0,141,244,247.0,102,184,0, 0.0,199.0,68,36,4,237,137,60,36,232,251,1,20,255,248,1,255,193.0,224,4,41, 196,129.0,252,236,239,255,199.0,68,36,8,237,199.0,68,36,4,0,0.0,0.0,0.0,137, 60,36,232,251,1,1,131.0,252,236,16,255,199.0,68,36,12,237,199.0,68,36,8,237, 199.0,68,36,4,237,137,60,36,232,251,1,8,255,199.0,68,36,12,237,199.0,68,36, 8,237,199.0,68,36,4,237,137,60,36,232,251,1,21,255,199.0,68,36,12,237,199.0, 68,36,8,237,199.0,68,36,4,237,137,60,36,232,251,1,10,255,199.0,68,36,4,237, 137,60,36,232,251,1,12,255,15.0,182,192,255,15.0,190,192,255,15.0,183,192, 255,15.0,191,192,255,199.0,68,36,4,237,137,60,36,232,251,1,12,131.0,252,248, 0,15.0,149.0,208,15.0,182,192,255,199.0,68,36,4,237,137,60,36,232,251,1,11, 255,199.0,68,36,4,237,137,60,36,232,251,1,15,255,199.0,68,36,4,237,137,60, 36,232,251,1,13,255,199.0,68,36,4,237,137,60,36,232,251,1,14,255,199.0,68, 36,4,237,137,60,36,232,251,1,16,255,199.0,68,36,4,237,137,60,36,232,251,1, 18,255,252,243.0,15.0,126,193,255,141,132,253,36,233,131.0,252,236,4,199.0, 68,36,8,237,137,124,36,4,137,4,36,232,251,1,18,255,199.0,68,36,4,237,137, 60,36,232,251,1,17,255,199.0,68,36,4,237,137,60,36,232,251,1,17,137,4,36, 217.0,4,36,255,137,20,36,217.0,4,36,255,137,224,129.0,192,239,137,68,36,12, 137,116,36,8,199.0,68,36,4,237,137,60,36,232,251,1,22,255,185,237,139,1,137, 4,36,232,251,1,23,255,131.0,196,32,255,139,148,253,36,233,255,139,12,36,255, 129.0,196,239,255,232,251,1,24,131.0,252,236,48,255,137,68,36,32,232,251, 1,25,185,237,137,1,199.0,68,36,8,237,199.0,68,36,4,237,137,60,36,232,251, 1,1,139,76,36,32,137,8,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252, 137,252,236,93,195,255,137,68,36,32,232,251,1,25,185,237,137,1,139,68,36, 32,137,68,36,4,137,60,36,232,251,1,26,184,1,0.0,0.0,0.0,139,117,252,248,139, 125,252,252,137,252,236,93,195,255,137,84,36,36,137,68,36,32,232,251,1,25, 185,237,137,1,199.0,68,36,8,237,199.0,68,36,4,0,0.0,0.0,0.0,137,60,36,232, 251,1,1,139,76,36,36,139,84,36,32,137,72,4,137,16,184,1,0.0,0.0,0.0,139,117, 252,248,139,125,252,252,137,252,236,93,195,255,137,68,36,32,137,84,36,36, 232,251,1,25,185,237,137,1,199.0,68,36,8,237,199.0,68,36,4,237,137,60,36, 232,251,1,1,139,76,36,32,137,8,139,76,36,36,137,72,4,184,1,0.0,0.0,0.0,139, 117,252,248,139,125,252,252,137,252,236,93,195,255,131.0,252,236,4,232,251, 1,25,185,237,137,1,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137, 252,236,93,195,255,232,251,1,25,185,237,137,1,184,0,0.0,0.0,0.0,139,117,252, 248,139,125,252,252,137,252,236,93,195,255,15.0,182,192,137,68,36,32,232, 251,1,25,185,237,137,1,139,68,36,32,137,68,36,4,137,60,36,232,251,1,4,184, 1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137,252,236,93,195,255,137, 68,36,32,232,251,1,25,185,237,137,1,139,68,36,32,137,68,36,4,137,60,36,232, 251,1,5,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137,252,236,93, 195,255,137,68,36,32,232,251,1,25,185,237,137,1,139,68,36,32,137,68,36,4, 137,60,36,232,251,1,6,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137, 252,236,93,195,255,221.0,92,36,4,232,251,1,25,185,237,137,1,137,60,36,232, 251,1,3,184,1,0.0,0.0,0.0,139,117,252,248,139,125,252,252,137,252,236,93, 195,255 }; static const char *const globnames[] = { (const char *)0 }; static const char *const extnames[] = { "lua_rawgeti", "push_cdata", "lua_remove", "lua_pushnumber", "lua_pushboolean", "push_int", "push_uint", "lua_callk", "check_typed_pointer", "lua_settop", "check_enum", "check_uint32", "check_int32", "check_uint64", "check_int64", "check_uintptr", "check_double", "check_complex_float", "check_complex_double", "lua_gettop", "luaL_error", "check_typed_cfunction", "unpack_varargs_stack", "SetLastError", "FUNCTION", "GetLastError", "lua_pushinteger", (const char *)0 }; #if defined _WIN64 || defined __amd64__ #define JUMP_SIZE 14 #else #define JUMP_SIZE 4 #endif #define MIN_BRANCH INT32_MIN #define MAX_BRANCH INT32_MAX #define BRANCH_OFF 4 static void compile_extern_jump(struct jit* jit, lua_State* L, cfunction func, uint8_t* code) { /* The jump code is the function pointer followed by a stub to call the * function pointer. The stub exists in 64 bit so we can jump to functions * with an offset greater than 2 GB. * * Note we have to manually set this up since there are commands buffered * in the jit state and dynasm doesn't support rip relative addressing. * * eg on 64 bit: * 0-8: function ptr * 8-14: jmp aword [rip-14] * * for 32 bit we only set the function ptr as it can always fit in a 32 * bit displacement */ #if defined _WIN64 || defined __amd64__ *(cfunction*) code = func; code[8] = 0xFF; /* FF /4 operand for jmp */ code[9] = 0x25; /* RIP displacement */ *(int32_t*) &code[10] = -14; #else *(cfunction*) code = func; #endif } void compile_globals(struct jit* jit, lua_State* L) { struct jit* Dst = jit; int* perr = &jit->last_errno; dasm_setup(Dst, build_actionlist); /* Note: since the return code uses EBP to reset the stack pointer, we * don't have to track the amount of stack space used. It also means we * can handle stdcall and cdecl with the same code. */ /* Note the various call_* functions want 32 bytes of 16 byte aligned * stack */ compile(Dst, L, NULL, LUA_NOREF); } int x86_return_size(lua_State* L, int usr, const struct ctype* ct) { int ret = 0; const struct ctype* mt; if (ct->calling_convention != C_CALL) { size_t i; size_t argn = lua_rawlen(L, usr); for (i = 1; i <= argn; i++) { lua_rawgeti(L, usr, (int) i); mt = (const struct ctype*) lua_touserdata(L, -1); if (mt->pointers || mt->is_reference) { ret += sizeof(void*); } else { switch (mt->type) { case DOUBLE_TYPE: case COMPLEX_FLOAT_TYPE: case INT64_TYPE: ret += 8; break; case COMPLEX_DOUBLE_TYPE: ret += 16; break; case INTPTR_TYPE: ret += sizeof(intptr_t); break; case FUNCTION_PTR_TYPE: ret += sizeof(cfunction); break; case BOOL_TYPE: case FLOAT_TYPE: case INT8_TYPE: case INT16_TYPE: case INT32_TYPE: case ENUM_TYPE: ret += 4; break; default: return luaL_error(L, "NYI - argument type"); } } lua_pop(L, 1); } } #if !defined _WIN64 && !defined __amd64__ lua_rawgeti(L, usr, 0); mt = (const struct ctype*) lua_touserdata(L, -1); if (!mt->pointers && !mt->is_reference && mt->type == COMPLEX_DOUBLE_TYPE) { ret += sizeof(void*); } lua_pop(L, 1); #endif return ret; } #ifdef _WIN64 #define MAX_REGISTERS(ct) 4 /* rcx, rdx, r8, r9 */ #elif defined __amd64__ #define MAX_INT_REGISTERS(ct) 6 /* rdi, rsi, rdx, rcx, r8, r9 */ #define MAX_FLOAT_REGISTERS(ct) 8 /* xmm0-7 */ #else #define MAX_INT_REGISTERS(ct) ((ct)->calling_convention == FAST_CALL ? 2 /* ecx, edx */ : 0) #define MAX_FLOAT_REGISTERS(ct) 0 #endif struct reg_alloc { #ifdef _WIN64 int regs; int is_float[4]; int is_int[4]; #else int floats; int ints; #endif int off; }; #ifdef _WIN64 #define REGISTER_STACK_SPACE(ct) (4*8) #elif defined __amd64__ #define REGISTER_STACK_SPACE(ct) (14*8) #else #define REGISTER_STACK_SPACE(ct) ALIGN_UP(((ct)->calling_convention == FAST_CALL ? 2*4 : 0), 15) #endif /* Fastcall: * Uses ecx, edx as first two int registers * Everything else on stack (include 64bit ints) * No overflow stack space * Pops the stack before returning * Returns int in eax, float in ST0 * We use the same register allocation logic as posix x64 with 2 int regs and 0 float regs */ static void get_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64) { /* grab the register from the shadow space */ #ifdef _WIN64 if (reg->regs < MAX_REGISTERS(ct)) { dasm_put(Dst, 0, 16 + 8*reg->regs); reg->regs++; } #elif __amd64__ if (reg->ints < MAX_INT_REGISTERS(ct)) { dasm_put(Dst, 0, - 80 - 8*reg->ints); reg->ints++; } #else if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) { dasm_put(Dst, 0, - 8 - 4*reg->ints); reg->ints++; } #endif else if (is_int64) { dasm_put(Dst, 4, reg->off, reg->off + 4); reg->off += 8; } else { dasm_put(Dst, 0, reg->off); #if defined __amd64__ || defined _WIN64 /* The parameters to a function on stack are always 8 byte aligned. */ reg->off += 8; #else reg->off += 4; #endif } } static void add_int(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_int64) { #ifdef _WIN64 if (reg->regs < MAX_REGISTERS(ct)) { dasm_put(Dst, 11, 32 + 8*(reg->regs)); reg->is_int[reg->regs++] = 1; } #elif __amd64__ if (reg->ints < MAX_INT_REGISTERS(ct)) { dasm_put(Dst, 11, 32 + 8*reg->ints); reg->ints++; } #else if (!is_int64 && reg->ints < MAX_INT_REGISTERS(ct)) { dasm_put(Dst, 11, 32 + 4*reg->ints); reg->ints++; } #endif else { #if defined _WIN64 || defined __amd64__ if (reg->off % 8 != 0) { reg->off += 8 - (reg->off % 8); } #endif if (is_int64) { dasm_put(Dst, 17, reg->off, reg->off + 4); reg->off += 8; } else { dasm_put(Dst, 11, reg->off); reg->off += 4; } } } static void get_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double) { #if !defined _WIN64 && !defined __amd64__ assert(MAX_FLOAT_REGISTERS(ct) == 0); if (is_double) { dasm_put(Dst, 28, reg->off); reg->off += 8; } else { dasm_put(Dst, 32, reg->off); reg->off += 4; } #else int off; #ifdef _WIN64 if (reg->regs < MAX_REGISTERS(ct)) { off = -16 - 8*reg->regs; reg->regs++; } #else if (reg->floats < MAX_FLOAT_REGISTERS(ct)) { off = -16 - 8*reg->floats; reg->floats++; } #endif else { off = reg->off; reg->off += is_double ? 8 : 4; } if (is_double) { dasm_put(Dst, 36, off); } else { dasm_put(Dst, 43, off); } #endif } static void add_float(Dst_DECL, const struct ctype* ct, struct reg_alloc* reg, int is_double) { #if !defined _WIN64 && !defined __amd64__ assert(MAX_FLOAT_REGISTERS(ct) == 0); if (is_double) { dasm_put(Dst, 50, reg->off); reg->off += 8; } else { dasm_put(Dst, 56, reg->off); reg->off += 4; } #else #ifdef _WIN64 if (reg->regs < MAX_REGISTERS(ct)) { if (is_double) { dasm_put(Dst, 62, 32 + 8*(reg->regs)); } else { dasm_put(Dst, 70, 32 + 8*(reg->regs)); } reg->is_float[reg->regs++] = 1; } #else if (reg->floats < MAX_FLOAT_REGISTERS(ct)) { if (is_double) { dasm_put(Dst, 62, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats)); } else { dasm_put(Dst, 70, 32 + 8*(MAX_INT_REGISTERS(ct) + reg->floats)); } reg->floats++; } #endif else if (is_double) { dasm_put(Dst, 62, reg->off); reg->off += 8; } else { dasm_put(Dst, 83, reg->off); reg->off += 4; } #endif } #if defined _WIN64 || defined __amd64__ #define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 1) #define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 1) #else #define add_pointer(jit, ct, reg) add_int(jit, ct, reg, 0) #define get_pointer(jit, ct, reg) get_int(jit, ct, reg, 0) #endif cfunction compile_callback(lua_State* L, int fidx, int ct_usr, const struct ctype* ct) { int i, nargs; cfunction* pf; struct ctype ct2 = *ct; const struct ctype* mt; struct reg_alloc reg; int num_upvals = 0; int top = lua_gettop(L); struct jit* Dst = get_jit(L); int ref; int hidden_arg_off = 0; ct_usr = lua_absindex(L, ct_usr); fidx = lua_absindex(L, fidx); assert(lua_isnil(L, fidx) || lua_isfunction(L, fidx)); memset(®, 0, sizeof(reg)); #ifdef _WIN64 reg.off = 16 + REGISTER_STACK_SPACE(ct); /* stack registers are above the shadow space */ #elif __amd64__ reg.off = 16; #else reg.off = 8; #endif dasm_setup(Dst, build_actionlist); // add a table to store ctype and function upvalues // callback_set assumes the first value is the lua function nargs = (int) lua_rawlen(L, ct_usr); lua_newtable(L); lua_pushvalue(L, -1); ref = luaL_ref(L, LUA_REGISTRYINDEX); if (ct->has_var_arg) { luaL_error(L, "can't create callbacks with varargs"); } // setup a stack frame to hold args for the call into lua_call dasm_put(Dst, 96, 4 + 16 + 32 + REGISTER_STACK_SPACE(ct)); if (ct->calling_convention == FAST_CALL) { dasm_put(Dst, 105); } // hardcode the lua_State* value into the assembly dasm_put(Dst, 114, L); /* get the upval table */ dasm_put(Dst, 117, ref, LUA_REGISTRYINDEX); /* get the lua function */ lua_pushvalue(L, fidx); lua_rawseti(L, -2, ++num_upvals); assert(num_upvals == CALLBACK_FUNC_USR_IDX); dasm_put(Dst, 135, num_upvals); #if !defined _WIN64 && !defined __amd64__ lua_rawgeti(L, ct_usr, 0); mt = (const struct ctype*) lua_touserdata(L, -1); if (!mt->pointers && !mt->is_reference && mt->type == COMPLEX_DOUBLE_TYPE) { hidden_arg_off = reg.off; reg.off += sizeof(void*); } lua_pop(L, 1); #else (void) hidden_arg_off; #endif for (i = 1; i <= nargs; i++) { lua_rawgeti(L, ct_usr, i); mt = (const struct ctype*) lua_touserdata(L, -1); if (mt->pointers || mt->is_reference) { lua_getuservalue(L, -1); lua_rawseti(L, -3, ++num_upvals); /* usr value */ lua_rawseti(L, -2, ++num_upvals); /* mt */ /* on the lua stack in the callback: * upval tbl, lua func, i-1 args */ dasm_put(Dst, 160, num_upvals-1, -i-1, mt); get_pointer(Dst, ct, ®); dasm_put(Dst, 202); } else { switch (mt->type) { case INT64_TYPE: lua_getuservalue(L, -1); lua_rawseti(L, -3, ++num_upvals); /* mt */ lua_pop(L, 1); dasm_put(Dst, 224, mt); get_int(Dst, ct, ®, 1); dasm_put(Dst, 245); break; case INTPTR_TYPE: lua_getuservalue(L, -1); lua_rawseti(L, -3, ++num_upvals); /* mt */ lua_pop(L, 1); dasm_put(Dst, 224, mt); get_pointer(Dst, ct, ®); dasm_put(Dst, 251); break; case COMPLEX_FLOAT_TYPE: lua_pop(L, 1); #if defined _WIN64 || defined __amd64__ /* complex floats are two floats packed into a double */ dasm_put(Dst, 224, mt); get_float(Dst, ct, ®, 1); dasm_put(Dst, 254); #else /* complex floats are real followed by imag on the stack */ dasm_put(Dst, 224, mt); get_float(Dst, ct, ®, 0); dasm_put(Dst, 259); get_float(Dst, ct, ®, 0); dasm_put(Dst, 262); #endif break; case COMPLEX_DOUBLE_TYPE: lua_pop(L, 1); dasm_put(Dst, 224, mt); /* real */ get_float(Dst, ct, ®, 1); dasm_put(Dst, 266); /* imag */ get_float(Dst, ct, ®, 1); dasm_put(Dst, 269); break; case FLOAT_TYPE: case DOUBLE_TYPE: lua_pop(L, 1); get_float(Dst, ct, ®, mt->type == DOUBLE_TYPE); dasm_put(Dst, 273); break; case BOOL_TYPE: lua_pop(L, 1); get_int(Dst, ct, ®, 0); dasm_put(Dst, 285); break; case INT8_TYPE: lua_pop(L, 1); get_int(Dst, ct, ®, 0); if (mt->is_unsigned) { dasm_put(Dst, 300); } else { dasm_put(Dst, 304); } dasm_put(Dst, 308); break; case INT16_TYPE: lua_pop(L, 1); get_int(Dst, ct, ®, 0); if (mt->is_unsigned) { dasm_put(Dst, 320); } else { dasm_put(Dst, 324); } dasm_put(Dst, 308); break; case ENUM_TYPE: case INT32_TYPE: lua_pop(L, 1); get_int(Dst, ct, ®, 0); if (mt->is_unsigned) { dasm_put(Dst, 328); } else { dasm_put(Dst, 308); } break; default: luaL_error(L, "NYI: callback arg type"); } } } lua_rawgeti(L, ct_usr, 0); mt = (const struct ctype*) lua_touserdata(L, -1); dasm_put(Dst, 340, (mt->pointers || mt->is_reference || mt->type != VOID_TYPE) ? 1 : 0, nargs); // Unpack the return argument if not "void", also clean-up the lua stack // to remove the return argument and bind table. Use lua_settop rather // than lua_pop as lua_pop is implemented as a macro. if (mt->pointers || mt->is_reference) { lua_getuservalue(L, -1); lua_rawseti(L, -3, ++num_upvals); /* usr value */ lua_rawseti(L, -2, ++num_upvals); /* mt */ dasm_put(Dst, 366, num_upvals-1, mt); } else { switch (mt->type) { case ENUM_TYPE: lua_getuservalue(L, -1); lua_rawseti(L, -3, ++num_upvals); /* usr value */ lua_rawseti(L, -2, ++num_upvals); /* mt */ dasm_put(Dst, 454, num_upvals-1, mt); break; case VOID_TYPE: lua_pop(L, 1); dasm_put(Dst, 542); break; case BOOL_TYPE: case INT8_TYPE: case INT16_TYPE: case INT32_TYPE: lua_pop(L, 1); if (mt->is_unsigned) { dasm_put(Dst, 562); } else { dasm_put(Dst, 582); } dasm_put(Dst, 602); break; case INT64_TYPE: lua_pop(L, 1); if (mt->is_unsigned) { dasm_put(Dst, 630); } else { dasm_put(Dst, 650); } dasm_put(Dst, 670); break; case INTPTR_TYPE: lua_pop(L, 1); dasm_put(Dst, 706); break; case FLOAT_TYPE: case DOUBLE_TYPE: lua_pop(L, 1); dasm_put(Dst, 753); if (mt->type == FLOAT_TYPE) { } else { } dasm_put(Dst, 773); break; case COMPLEX_FLOAT_TYPE: lua_pop(L, 1); #if !defined HAVE_COMPLEX luaL_error(L, "ffi lib compiled without complex number support"); #endif /* on 64 bit complex floats are two floats packed into a double, * on 32 bit returned complex floats use eax and edx */ dasm_put(Dst, 801); break; case COMPLEX_DOUBLE_TYPE: lua_pop(L, 1); #if !defined HAVE_COMPLEX luaL_error(L, "ffi lib compiled without complex number support"); #endif /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit * there is a hidden first parameter that points to 16 bytes where * the returned arg is stored which is popped by the called * function */ #if defined _WIN64 || defined __amd64__ dasm_put(Dst, 856); #else dasm_put(Dst, 921, hidden_arg_off); #endif break; default: luaL_error(L, "NYI: callback return type"); } } dasm_put(Dst, 971, x86_return_size(L, ct_usr, ct)); lua_pop(L, 1); /* upval table - already in registry */ assert(lua_gettop(L) == top); ct2.is_jitted = 1; pf = (cfunction*) push_cdata(L, ct_usr, &ct2); *pf = compile(Dst, L, NULL, ref); assert(lua_gettop(L) == top + 1); return *pf; } void compile_function(lua_State* L, cfunction func, int ct_usr, const struct ctype* ct) { size_t i, nargs; int num_upvals; const struct ctype* mbr_ct; struct jit* Dst = get_jit(L); struct reg_alloc reg; void* p; int top = lua_gettop(L); int* perr = &Dst->last_errno; ct_usr = lua_absindex(L, ct_usr); memset(®, 0, sizeof(reg)); reg.off = 32 + REGISTER_STACK_SPACE(ct); dasm_setup(Dst, build_actionlist); p = push_cdata(L, ct_usr, ct); *(cfunction*) p = func; num_upvals = 1; nargs = lua_rawlen(L, ct_usr); if (ct->calling_convention != C_CALL && ct->has_var_arg) { luaL_error(L, "vararg is only allowed with the c calling convention"); } dasm_put(Dst, 982, 8, nargs); if (!ct->has_var_arg) { dasm_put(Dst, 1008, (ptrdiff_t)("too few arguments"), (ptrdiff_t)("too many arguments")); } else { dasm_put(Dst, 1051, (ptrdiff_t)("too few arguments")); } dasm_put(Dst, 1072); /* no need to zero extend eax returned by lua_gettop to rax as x86-64 * preguarentees that the upper 32 bits will be zero */ dasm_put(Dst, 1075, 32 + REGISTER_STACK_SPACE(ct)); #if !defined _WIN64 && !defined __amd64__ /* Returned complex doubles require a hidden first parameter where the * data is stored, which is popped by the calling code. */ lua_rawgeti(L, ct_usr, 0); mbr_ct = (const struct ctype*) lua_touserdata(L, -1); if (!mbr_ct->pointers && !mbr_ct->is_reference && mbr_ct->type == COMPLEX_DOUBLE_TYPE) { /* we can allocate more space for arguments as long as no add_* * function has been called yet, mbr_ct will be added as an upvalue in * the return processing later */ dasm_put(Dst, 1085, mbr_ct); add_pointer(Dst, ct, ®); } lua_pop(L, 1); #endif for (i = 1; i <= nargs; i++) { lua_rawgeti(L, ct_usr, (int) i); mbr_ct = (const struct ctype*) lua_touserdata(L, -1); if (mbr_ct->pointers || mbr_ct->is_reference) { lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1110, mbr_ct, lua_upvalueindex(num_upvals), i); add_pointer(Dst, ct, ®); } else { switch (mbr_ct->type) { case FUNCTION_PTR_TYPE: lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1133, mbr_ct, lua_upvalueindex(num_upvals), i); add_pointer(Dst, ct, ®); break; case ENUM_TYPE: lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1156, mbr_ct, lua_upvalueindex(num_upvals), i); add_int(Dst, ct, ®, 0); break; case INT8_TYPE: dasm_put(Dst, 1179, i); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1192); } else { dasm_put(Dst, 1196); } add_int(Dst, ct, ®, 0); lua_pop(L, 1); break; case INT16_TYPE: dasm_put(Dst, 1179, i); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1200); } else { dasm_put(Dst, 1204); } add_int(Dst, ct, ®, 0); lua_pop(L, 1); break; case BOOL_TYPE: dasm_put(Dst, 1208, i); add_int(Dst, ct, ®, 0); lua_pop(L, 1); break; case INT32_TYPE: if (mbr_ct->is_unsigned) { dasm_put(Dst, 1231, i); } else { dasm_put(Dst, 1179, i); } add_int(Dst, ct, ®, 0); lua_pop(L, 1); break; case INTPTR_TYPE: dasm_put(Dst, 1244, i); add_pointer(Dst, ct, ®); lua_pop(L, 1); break; case INT64_TYPE: if (mbr_ct->is_unsigned) { dasm_put(Dst, 1257, i); } else { dasm_put(Dst, 1270, i); } add_int(Dst, ct, ®, 1); lua_pop(L, 1); break; case DOUBLE_TYPE: dasm_put(Dst, 1283, i); add_float(Dst, ct, ®, 1); lua_pop(L, 1); break; case COMPLEX_DOUBLE_TYPE: /* on 64 bit, returned complex doubles use xmm0, xmm1, on 32 bit * there is a hidden first parameter that points to 16 bytes where * the returned arg is stored (this is popped by the called * function) */ #if defined _WIN64 || defined __amd64__ dasm_put(Dst, 1296, i); add_float(Dst, ct, ®, 1); dasm_put(Dst, 1309); add_float(Dst, ct, ®, 1); #else dasm_put(Dst, 1315, reg.off, i); reg.off += 16; #endif lua_pop(L, 1); break; case FLOAT_TYPE: dasm_put(Dst, 1283, i); add_float(Dst, ct, ®, 0); lua_pop(L, 1); break; case COMPLEX_FLOAT_TYPE: #if defined _WIN64 || defined __amd64__ dasm_put(Dst, 1341, i); /* complex floats are two floats packed into a double */ add_float(Dst, ct, ®, 1); #else /* returned complex floats use eax and edx */ dasm_put(Dst, 1354, i); add_float(Dst, ct, ®, 0); dasm_put(Dst, 1373); add_float(Dst, ct, ®, 0); #endif lua_pop(L, 1); break; default: luaL_error(L, "NYI: call arg type"); } } } if (ct->has_var_arg) { #ifdef _WIN64 if (reg.regs < MAX_REGISTERS(ct)) { assert(reg.regs == nargs); } else { } for (i = nargs; i < MAX_REGISTERS(ct); i++) { reg.is_int[i] = reg.is_float[i] = 1; } reg.regs = MAX_REGISTERS(ct); #elif defined __amd64__ if (reg.floats < MAX_FLOAT_REGISTERS(ct)) { } if (reg.ints < MAX_INT_REGISTERS(ct)) { } reg.floats = MAX_FLOAT_REGISTERS(ct); reg.ints = MAX_INT_REGISTERS(ct); #else dasm_put(Dst, 1380, reg.off, nargs+1); #endif } dasm_put(Dst, 1406, perr); /* remove the stack space to call local functions */ dasm_put(Dst, 1418); #ifdef _WIN64 switch (reg.regs) { case 4: if (reg.is_float[3]) { } if (reg.is_int[3]) { } case 3: if (reg.is_float[2]) { } if (reg.is_int[2]) { } case 2: if (reg.is_float[1]) { } if (reg.is_int[1]) { } case 1: if (reg.is_float[0]) { } if (reg.is_int[0]) { } case 0: break; } /* don't remove the space for the registers as we need 32 bytes of register overflow space */ assert(REGISTER_STACK_SPACE(ct) == 32); #elif defined __amd64__ switch (reg.floats) { case 8: case 7: case 6: case 5: case 4: case 3: case 2: case 1: case 0: break; } switch (reg.ints) { case 6: case 5: case 4: case 3: case 2: case 1: case 0: break; } #else if (ct->calling_convention == FAST_CALL) { switch (reg.ints) { case 2: dasm_put(Dst, 1422, 4); case 1: dasm_put(Dst, 1428); case 0: break; } dasm_put(Dst, 1432, REGISTER_STACK_SPACE(ct)); } #endif #ifdef __amd64__ if (ct->has_var_arg) { /* al stores an upper limit on the number of float register, note that * its allowed to be more than the actual number of float registers used as * long as its 0-8 */ } #endif dasm_put(Dst, 1436); /* note on windows X86 the stack may be only aligned to 4 (stdcall will * have popped a multiple of 4 bytes), but we don't need 16 byte alignment on * that platform */ lua_rawgeti(L, ct_usr, 0); mbr_ct = (const struct ctype*) lua_touserdata(L, -1); if (mbr_ct->pointers || mbr_ct->is_reference || mbr_ct->type == INTPTR_TYPE) { lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1445, perr, mbr_ct, lua_upvalueindex(num_upvals)); } else { switch (mbr_ct->type) { case FUNCTION_PTR_TYPE: lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1445, perr, mbr_ct, lua_upvalueindex(num_upvals)); break; case INT64_TYPE: #if LUA_VERSION_NUM == 503 lua_pop(L, 1); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1499, perr); } else { dasm_put(Dst, 1499, perr); } #else num_upvals++; dasm_put(Dst, 1545, perr, mbr_ct); #endif break; case COMPLEX_FLOAT_TYPE: lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1613, perr, mbr_ct, lua_upvalueindex(num_upvals)); break; case COMPLEX_DOUBLE_TYPE: lua_getuservalue(L, -1); num_upvals += 2; dasm_put(Dst, 1678, perr); break; case VOID_TYPE: lua_pop(L, 1); dasm_put(Dst, 1709, perr); break; case BOOL_TYPE: lua_pop(L, 1); dasm_put(Dst, 1736, perr); break; case INT8_TYPE: lua_pop(L, 1); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1192); } else { dasm_put(Dst, 1196); } dasm_put(Dst, 1785, perr); break; case INT16_TYPE: lua_pop(L, 1); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1200); } else { dasm_put(Dst, 1204); } dasm_put(Dst, 1785, perr); break; case INT32_TYPE: case ENUM_TYPE: lua_pop(L, 1); if (mbr_ct->is_unsigned) { dasm_put(Dst, 1831, perr); } else { dasm_put(Dst, 1785, perr); } break; case FLOAT_TYPE: lua_pop(L, 1); dasm_put(Dst, 1877, perr); break; case DOUBLE_TYPE: lua_pop(L, 1); dasm_put(Dst, 1877, perr); break; default: luaL_error(L, "NYI: call return type"); } } assert(lua_gettop(L) == top + num_upvals); { cfunction f = compile(Dst, L, func, LUA_NOREF); /* add a callback as an upval so that the jitted code gets cleaned up when * the function gets gc'd */ push_callback(L, f, func); lua_pushcclosure(L, (lua_CFunction) f, num_upvals+1); } }