/* * Copyright (C) 2019 Intel Corporation. All rights reserved. * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception */ #include "wasm_interp.h" #include "bh_log.h" #include "wasm_runtime.h" #include "wasm_opcode.h" #include "wasm_loader.h" #include "../common/wasm_exec_env.h" typedef int32 CellType_I32; typedef int64 CellType_I64; typedef float32 CellType_F32; typedef float64 CellType_F64; #define BR_TABLE_TMP_BUF_LEN 32 /* 64-bit Memory accessors. */ #if WASM_CPU_SUPPORTS_UNALIGNED_64BIT_ACCESS != 0 #define PUT_I64_TO_ADDR(addr, value) do { \ *(int64*)(addr) = (int64)(value); \ } while (0) #define PUT_F64_TO_ADDR(addr, value) do { \ *(float64*)(addr) = (float64)(value); \ } while (0) #define GET_I64_FROM_ADDR(addr) (*(int64*)(addr)) #define GET_F64_FROM_ADDR(addr) (*(float64*)(addr)) /* For STORE opcodes */ #define STORE_I64 PUT_I64_TO_ADDR #define STORE_U32(addr, value) do { \ *(uint32*)(addr) = (uint32)(value); \ } while (0) #define STORE_U16(addr, value) do { \ *(uint16*)(addr) = (uint16)(value); \ } while (0) /* For LOAD opcodes */ #define LOAD_I64(addr) (*(int64*)(addr)) #define LOAD_F64(addr) (*(float64*)(addr)) #define LOAD_I32(addr) (*(int32*)(addr)) #define LOAD_U32(addr) (*(uint32*)(addr)) #define LOAD_I16(addr) (*(int16*)(addr)) #define LOAD_U16(addr) (*(uint16*)(addr)) #else /* WASM_CPU_SUPPORTS_UNALIGNED_64BIT_ACCESS != 0 */ #define PUT_I64_TO_ADDR(addr, value) do { \ union { int64 val; uint32 parts[2]; } u; \ u.val = (int64)(value); \ (addr)[0] = u.parts[0]; \ (addr)[1] = u.parts[1]; \ } while (0) #define PUT_F64_TO_ADDR(addr, value) do { \ union { float64 val; uint32 parts[2]; } u; \ u.val = (value); \ (addr)[0] = u.parts[0]; \ (addr)[1] = u.parts[1]; \ } while (0) static inline int64 GET_I64_FROM_ADDR(uint32 *addr) { union { int64 val; uint32 parts[2]; } u; u.parts[0] = addr[0]; u.parts[1] = addr[1]; return u.val; } static inline float64 GET_F64_FROM_ADDR (uint32 *addr) { union { float64 val; uint32 parts[2]; } u; u.parts[0] = addr[0]; u.parts[1] = addr[1]; return u.val; } /* For STORE opcodes */ #define STORE_I64(addr, value) do { \ uintptr_t addr1 = (uintptr_t)(addr); \ union { int64 val; uint32 u32[2]; \ uint16 u16[4]; uint8 u8[8]; } u; \ if ((addr1 & (uintptr_t)7) == 0) \ *(int64*)(addr) = (int64)(value); \ else { \ u.val = (int64)(value); \ if ((addr1 & (uintptr_t)3) == 0) { \ ((uint32*)(addr))[0] = u.u32[0]; \ ((uint32*)(addr))[1] = u.u32[1]; \ } \ else if ((addr1 & (uintptr_t)1) == 0) { \ ((uint16*)(addr))[0] = u.u16[0]; \ ((uint16*)(addr))[1] = u.u16[1]; \ ((uint16*)(addr))[2] = u.u16[2]; \ ((uint16*)(addr))[3] = u.u16[3]; \ } \ else { \ int32 t; \ for (t = 0; t < 8; t++) \ ((uint8*)(addr))[t] = u.u8[t]; \ } \ } \ } while (0) #define STORE_U32(addr, value) do { \ uintptr_t addr1 = (uintptr_t)(addr); \ union { uint32 val; \ uint16 u16[2]; uint8 u8[4]; } u; \ if ((addr1 & (uintptr_t)3) == 0) \ *(uint32*)(addr) = (uint32)(value); \ else { \ u.val = (uint32)(value); \ if ((addr1 & (uintptr_t)1) == 0) { \ ((uint16*)(addr))[0] = u.u16[0]; \ ((uint16*)(addr))[1] = u.u16[1]; \ } \ else { \ ((uint8*)(addr))[0] = u.u8[0]; \ ((uint8*)(addr))[1] = u.u8[1]; \ ((uint8*)(addr))[2] = u.u8[2]; \ ((uint8*)(addr))[3] = u.u8[3]; \ } \ } \ } while (0) #define STORE_U16(addr, value) do { \ union { uint16 val; uint8 u8[2]; } u; \ u.val = (uint16)(value); \ ((uint8*)(addr))[0] = u.u8[0]; \ ((uint8*)(addr))[1] = u.u8[1]; \ } while (0) /* For LOAD opcodes */ static inline int64 LOAD_I64(void *addr) { uintptr_t addr1 = (uintptr_t)addr; union { int64 val; uint32 u32[2]; uint16 u16[4]; uint8 u8[8]; } u; if ((addr1 & (uintptr_t)7) == 0) return *(int64*)addr; if ((addr1 & (uintptr_t)3) == 0) { u.u32[0] = ((uint32*)addr)[0]; u.u32[1] = ((uint32*)addr)[1]; } else if ((addr1 & (uintptr_t)1) == 0) { u.u16[0] = ((uint16*)addr)[0]; u.u16[1] = ((uint16*)addr)[1]; u.u16[2] = ((uint16*)addr)[2]; u.u16[3] = ((uint16*)addr)[3]; } else { int32 t; for (t = 0; t < 8; t++) u.u8[t] = ((uint8*)addr)[t]; } return u.val; } static inline float64 LOAD_F64(void *addr) { uintptr_t addr1 = (uintptr_t)addr; union { float64 val; uint32 u32[2]; uint16 u16[4]; uint8 u8[8]; } u; if ((addr1 & (uintptr_t)7) == 0) return *(float64*)addr; if ((addr1 & (uintptr_t)3) == 0) { u.u32[0] = ((uint32*)addr)[0]; u.u32[1] = ((uint32*)addr)[1]; } else if ((addr1 & (uintptr_t)1) == 0) { u.u16[0] = ((uint16*)addr)[0]; u.u16[1] = ((uint16*)addr)[1]; u.u16[2] = ((uint16*)addr)[2]; u.u16[3] = ((uint16*)addr)[3]; } else { int32 t; for (t = 0; t < 8; t++) u.u8[t] = ((uint8*)addr)[t]; } return u.val; } static inline int32 LOAD_I32(void *addr) { uintptr_t addr1 = (uintptr_t)addr; union { int32 val; uint16 u16[2]; uint8 u8[4]; } u; if ((addr1 & (uintptr_t)3) == 0) return *(int32*)addr; if ((addr1 & (uintptr_t)1) == 0) { u.u16[0] = ((uint16*)addr)[0]; u.u16[1] = ((uint16*)addr)[1]; } else { u.u8[0] = ((uint8*)addr)[0]; u.u8[1] = ((uint8*)addr)[1]; u.u8[2] = ((uint8*)addr)[2]; u.u8[3] = ((uint8*)addr)[3]; } return u.val; } static inline int16 LOAD_I16(void *addr) { union { int16 val; uint8 u8[2]; } u; u.u8[0] = ((uint8*)addr)[0]; u.u8[1] = ((uint8*)addr)[1]; return u.val; } #define LOAD_U32(addr) ((uint32)LOAD_I32(addr)) #define LOAD_U16(addr) ((uint16)LOAD_I16(addr)) #endif /* WASM_CPU_SUPPORTS_UNALIGNED_64BIT_ACCESS != 0 */ #define CHECK_MEMORY_OVERFLOW(bytes) do { \ int32 offset1 = (int32)(offset + addr); \ uint64 offset2 = (uint64)(uint32)(offset1 - heap_base_offset); \ /* if (flags != 2) \ LOG_VERBOSE("unaligned load/store, flag: %d.\n", flags); */ \ if (offset2 + LOAD_SIZE[opcode - WASM_OP_I32_LOAD] <= total_mem_size) \ /* If offset1 is in valid range, maddr must also be in valid range, \ no need to check it again. */ \ maddr = memory->memory_data + offset1; \ else \ goto out_of_bounds; \ } while (0) static inline uint32 rotl32(uint32 n, uint32 c) { const uint32 mask = (31); c = c % 32; c &= mask; return (n<>( (-c)&mask )); } static inline uint32 rotr32(uint32 n, uint32 c) { const uint32 mask = (31); c = c % 32; c &= mask; return (n>>c) | (n<<( (-c)&mask )); } static inline uint64 rotl64(uint64 n, uint64 c) { const uint64 mask = (63); c = c % 64; c &= mask; return (n<>( (-c)&mask )); } static inline uint64 rotr64(uint64 n, uint64 c) { const uint64 mask = (63); c = c % 64; c &= mask; return (n>>c) | (n<<( (-c)&mask )); } static inline double wa_fmax(double a, double b) { double c = fmax(a, b); if (c==0 && a==b) return signbit(a) ? b : a; return c; } static inline double wa_fmin(double a, double b) { double c = fmin(a, b); if (c==0 && a==b) return signbit(a) ? a : b; return c; } static inline uint32 clz32(uint32 type) { uint32 num = 0; if (type == 0) return 32; while (!(type & 0x80000000)) { num++; type <<= 1; } return num; } static inline uint32 clz64(uint64 type) { uint32 num = 0; if (type == 0) return 64; while (!(type & 0x8000000000000000LL)) { num++; type <<= 1; } return num; } static inline uint32 ctz32(uint32 type) { uint32 num = 0; if (type == 0) return 32; while (!(type & 1)) { num++; type >>= 1; } return num; } static inline uint32 ctz64(uint64 type) { uint32 num = 0; if (type == 0) return 64; while (!(type & 1)) { num++; type >>= 1; } return num; } static inline uint32 popcount32(uint32 u) { uint32 ret = 0; while (u) { u = (u & (u - 1)); ret++; } return ret; } static inline uint32 popcount64(uint64 u) { uint32 ret = 0; while (u) { u = (u & (u - 1)); ret++; } return ret; } static uint64 read_leb(const uint8 *buf, uint32 *p_offset, uint32 maxbits, bool sign) { uint64 result = 0; uint32 shift = 0; uint32 bcnt = 0; uint64 byte; while (true) { byte = buf[*p_offset]; *p_offset += 1; result |= ((byte & 0x7f) << shift); shift += 7; if ((byte & 0x80) == 0) { break; } bcnt += 1; } if (sign && (shift < maxbits) && (byte & 0x40)) { /* Sign extend */ result |= - ((uint64)1 << shift); } return result; } #define PUSH_I32(value) do { \ *(int32*)frame_sp++ = (int32)(value); \ } while (0) #define PUSH_F32(value) do { \ *(float32*)frame_sp++ = (float32)(value); \ } while (0) #define PUSH_I64(value) do { \ PUT_I64_TO_ADDR(frame_sp, value); \ frame_sp += 2; \ } while (0) #define PUSH_F64(value) do { \ PUT_F64_TO_ADDR(frame_sp, value); \ frame_sp += 2; \ } while (0) #define PUSH_CSP(type, ret_type, _target_addr) do { \ bh_assert(frame_csp < frame->csp_boundary); \ frame_csp->block_type = type; \ frame_csp->return_type = ret_type; \ frame_csp->target_addr = _target_addr; \ frame_csp->frame_sp = frame_sp; \ frame_csp++; \ } while (0) #define POP_I32() (--frame_sp, *(int32*)frame_sp) #define POP_F32() (--frame_sp, *(float32*)frame_sp) #define POP_I64() (frame_sp -= 2, GET_I64_FROM_ADDR(frame_sp)) #define POP_F64() (frame_sp -= 2, GET_F64_FROM_ADDR(frame_sp)) #define POP_CSP_CHECK_OVERFLOW(n) do { \ bh_assert(frame_csp - n >= frame->csp_bottom); \ } while (0) #define POP_CSP() do { \ POP_CSP_CHECK_OVERFLOW(1); \ --frame_csp; \ } while (0) #define POP_CSP_N(n) do { \ uint32 *frame_sp_old = frame_sp; \ POP_CSP_CHECK_OVERFLOW(n + 1); \ frame_csp -= n; \ frame_ip = (frame_csp - 1)->target_addr; \ /* copy return value of block */ \ frame_sp = (frame_csp - 1)->frame_sp; \ switch ((frame_csp - 1)->return_type) { \ case VALUE_TYPE_I32: \ case VALUE_TYPE_F32: \ PUSH_I32(*(frame_sp_old - 1)); \ break; \ case VALUE_TYPE_I64: \ case VALUE_TYPE_F64: \ PUSH_I64(GET_I64_FROM_ADDR(frame_sp_old - 2)); \ break; \ } \ } while (0) /* Pop the given number of elements from the given frame's stack. */ #define POP(N) do { \ int n = (N); \ frame_sp -= n; \ } while (0) #define SYNC_ALL_TO_FRAME() do { \ frame->sp = frame_sp; \ frame->ip = frame_ip; \ frame->csp = frame_csp; \ } while (0) #define UPDATE_ALL_FROM_FRAME() do { \ frame_sp = frame->sp; \ frame_ip = frame->ip; \ frame_csp = frame->csp; \ } while (0) #define read_leb_int64(p, p_end, res) do { \ uint8 _val = *p; \ if (!(_val & 0x80)) { \ res = (int64)_val; \ if (_val & 0x40) \ /* sign extend */ \ res |= 0xFFFFFFFFFFFFFF80LL; \ p++; \ break; \ } \ uint32 _off = 0; \ res = (int64)read_leb(p, &_off, 64, true); \ p += _off; \ } while (0) #define read_leb_uint32(p, p_end, res) do { \ uint8 _val = *p; \ if (!(_val & 0x80)) { \ res = _val; \ p++; \ break; \ } \ uint32 _off = 0; \ res = (uint32)read_leb(p, &_off, 32, false); \ p += _off; \ } while (0) #define read_leb_int32(p, p_end, res) do { \ uint8 _val = *p; \ if (!(_val & 0x80)) { \ res = (int32)_val; \ if (_val & 0x40) \ /* sign extend */ \ res |= 0xFFFFFF80; \ p++; \ break; \ } \ uint32 _off = 0; \ res = (int32)read_leb(p, &_off, 32, true); \ p += _off; \ } while (0) #if WASM_ENABLE_LABELS_AS_VALUES == 0 #define RECOVER_FRAME_IP_END() \ frame_ip_end = wasm_get_func_code_end(cur_func) #else #define RECOVER_FRAME_IP_END() (void)0 #endif #define RECOVER_CONTEXT(new_frame) do { \ frame = (new_frame); \ cur_func = frame->function; \ prev_frame = frame->prev_frame; \ frame_ip = frame->ip; \ RECOVER_FRAME_IP_END(); \ frame_lp = frame->lp; \ frame_sp = frame->sp; \ frame_csp = frame->csp; \ } while (0) #if WASM_ENABLE_LABELS_AS_VALUES != 0 #define GET_OPCODE() opcode = *(frame_ip - 1); #else #define GET_OPCODE() (void)0 #endif #define DEF_OP_I_CONST(ctype, src_op_type) do { \ ctype cval; \ read_leb_##ctype(frame_ip, frame_ip_end, cval); \ PUSH_##src_op_type(cval); \ } while (0) #define DEF_OP_EQZ(src_op_type) do { \ int32 val; \ val = POP_##src_op_type() == 0; \ PUSH_I32(val); \ } while (0) #define DEF_OP_CMP(src_type, src_op_type, cond) do { \ uint32 res; \ src_type val1, val2; \ val2 = (src_type)POP_##src_op_type(); \ val1 = (src_type)POP_##src_op_type(); \ res = val1 cond val2; \ PUSH_I32(res); \ } while (0) #define DEF_OP_BIT_COUNT(src_type, src_op_type, operation) do { \ src_type val1, val2; \ val1 = (src_type)POP_##src_op_type(); \ val2 = (src_type)operation(val1); \ PUSH_##src_op_type(val2); \ } while (0) #define DEF_OP_NUMERIC(src_type1, src_type2, src_op_type, operation) do { \ frame_sp -= sizeof(src_type2)/sizeof(uint32); \ *(src_type1*)(frame_sp - sizeof(src_type1)/sizeof(uint32)) operation##= \ *(src_type2*)(frame_sp); \ } while (0) #if WASM_CPU_SUPPORTS_UNALIGNED_64BIT_ACCESS != 0 #define DEF_OP_NUMERIC_64 DEF_OP_NUMERIC #else #define DEF_OP_NUMERIC_64(src_type1, src_type2, src_op_type, operation) do {\ src_type1 val1; \ src_type2 val2; \ frame_sp -= 2; \ val1 = (src_type1)GET_##src_op_type##_FROM_ADDR(frame_sp - 2); \ val2 = (src_type2)GET_##src_op_type##_FROM_ADDR(frame_sp); \ val1 operation##= val2; \ PUT_##src_op_type##_TO_ADDR(frame_sp - 2, val1); \ } while (0) #endif #define DEF_OP_NUMERIC2(src_type1, src_type2, src_op_type, operation) do { \ frame_sp -= sizeof(src_type2)/sizeof(uint32); \ *(src_type1*)(frame_sp - sizeof(src_type1)/sizeof(uint32)) operation##= \ (*(src_type2*)(frame_sp) % 32); \ } while (0) #define DEF_OP_NUMERIC2_64(src_type1, src_type2, src_op_type, operation) do { \ src_type1 val1; \ src_type2 val2; \ frame_sp -= 2; \ val1 = (src_type1)GET_##src_op_type##_FROM_ADDR(frame_sp - 2); \ val2 = (src_type2)GET_##src_op_type##_FROM_ADDR(frame_sp); \ val1 operation##= (val2 % 64); \ PUT_##src_op_type##_TO_ADDR(frame_sp - 2, val1); \ } while (0) #define DEF_OP_MATH(src_type, src_op_type, method) do { \ src_type val; \ val = POP_##src_op_type(); \ PUSH_##src_op_type(method(val)); \ } while (0) #define TRUNC_FUNCTION(func_name, src_type, dst_type, signed_type) \ static dst_type \ func_name(src_type src_value, src_type src_min, src_type src_max, \ dst_type dst_min, dst_type dst_max, bool is_sign) \ { \ dst_type dst_value = 0; \ if (!isnan(src_value)) { \ if (src_value <= src_min) \ dst_value = dst_min; \ else if (src_value >= src_max) \ dst_value = dst_max; \ else { \ if (is_sign) \ dst_value = (dst_type)(signed_type)src_value; \ else \ dst_value = (dst_type)src_value; \ } \ } \ return dst_value; \ } TRUNC_FUNCTION(trunc_f32_to_i32, float32, uint32, int32) TRUNC_FUNCTION(trunc_f32_to_i64, float32, uint64, int64) TRUNC_FUNCTION(trunc_f64_to_i32, float64, uint32, int32) TRUNC_FUNCTION(trunc_f64_to_i64, float64, uint64, int64) static bool trunc_f32_to_int(WASMModuleInstance *module, uint32 *frame_sp, float32 src_min, float32 src_max, bool saturating, bool is_i32, bool is_sign) { float32 src_value = POP_F32(); uint64 dst_value_i64; uint32 dst_value_i32; if (!saturating) { if (isnan(src_value)) { wasm_set_exception(module, "invalid conversion to integer"); return true; } else if (src_value <= src_min || src_value >= src_max) { wasm_set_exception(module, "integer overflow"); return true; } } if (is_i32) { uint32 dst_min = is_sign ? INT32_MIN : 0; uint32 dst_max = is_sign ? INT32_MAX : UINT32_MAX; dst_value_i32 = trunc_f32_to_i32(src_value, src_min, src_max, dst_min, dst_max, is_sign); PUSH_I32(dst_value_i32); } else { uint64 dst_min = is_sign ? INT64_MIN : 0; uint64 dst_max = is_sign ? INT64_MAX : UINT64_MAX; dst_value_i64 = trunc_f32_to_i64(src_value, src_min, src_max, dst_min, dst_max, is_sign); PUSH_I64(dst_value_i64); } return false; } static bool trunc_f64_to_int(WASMModuleInstance *module, uint32 *frame_sp, float64 src_min, float64 src_max, bool saturating, bool is_i32, bool is_sign) { float64 src_value = POP_F64(); uint64 dst_value_i64; uint32 dst_value_i32; if (!saturating) { if (isnan(src_value)) { wasm_set_exception(module, "invalid conversion to integer"); return true; } else if (src_value <= src_min || src_value >= src_max) { wasm_set_exception(module, "integer overflow"); return true; } } if (is_i32) { uint32 dst_min = is_sign ? INT32_MIN : 0; uint32 dst_max = is_sign ? INT32_MAX : UINT32_MAX; dst_value_i32 = trunc_f64_to_i32(src_value, src_min, src_max, dst_min, dst_max, is_sign); PUSH_I32(dst_value_i32); } else { uint64 dst_min = is_sign ? INT64_MIN : 0; uint64 dst_max = is_sign ? INT64_MAX : UINT64_MAX; dst_value_i64 = trunc_f64_to_i64(src_value, src_min, src_max, dst_min, dst_max, is_sign); PUSH_I64(dst_value_i64); } return false; } #define DEF_OP_TRUNC_F32(min, max, is_i32, is_sign) do { \ if (trunc_f32_to_int(module, frame_sp, min, max, \ false, is_i32, is_sign)) \ goto got_exception; \ } while (0) #define DEF_OP_TRUNC_F64(min, max, is_i32, is_sign) do { \ if (trunc_f64_to_int(module, frame_sp, min, max, \ false, is_i32, is_sign)) \ goto got_exception; \ } while (0) #define DEF_OP_TRUNC_SAT_F32(min, max, is_i32, is_sign) do { \ (void)trunc_f32_to_int(module, frame_sp, min, max, \ true, is_i32, is_sign); \ } while (0) #define DEF_OP_TRUNC_SAT_F64(min, max, is_i32, is_sign) do { \ (void)trunc_f64_to_int(module, frame_sp, min, max, \ true, is_i32, is_sign); \ } while (0) #define DEF_OP_CONVERT(dst_type, dst_op_type, \ src_type, src_op_type) do { \ dst_type value = (dst_type)(src_type)POP_##src_op_type(); \ PUSH_##dst_op_type(value); \ } while (0) #define GET_LOCAL_INDEX_TYPE_AND_OFFSET() do { \ uint32 param_count = cur_func->param_count; \ read_leb_uint32(frame_ip, frame_ip_end, local_idx); \ bh_assert(local_idx < param_count + cur_func->local_count); \ local_offset = cur_func->local_offsets[local_idx]; \ if (local_idx < param_count) \ local_type = cur_func->param_types[local_idx]; \ else \ local_type = cur_func->local_types[local_idx - param_count]; \ } while (0) static inline int32 sign_ext_8_32(int8 val) { if (val & 0x80) return (int32)val | (int32)0xffffff00; return val; } static inline int32 sign_ext_16_32(int16 val) { if (val & 0x8000) return (int32)val | (int32)0xffff0000; return val; } static inline int64 sign_ext_8_64(int8 val) { if (val & 0x80) return (int64)val | (int64)0xffffffffffffff00; return val; } static inline int64 sign_ext_16_64(int16 val) { if (val & 0x8000) return (int64)val | (int64)0xffffffffffff0000; return val; } static inline int64 sign_ext_32_64(int32 val) { if (val & (int32)0x80000000) return (int64)val | (int64)0xffffffff00000000; return val; } static inline void word_copy(uint32 *dest, uint32 *src, unsigned num) { for (; num > 0; num--) *dest++ = *src++; } static inline WASMInterpFrame* ALLOC_FRAME(WASMExecEnv *exec_env, uint32 size, WASMInterpFrame *prev_frame) { WASMInterpFrame *frame = wasm_exec_env_alloc_wasm_frame(exec_env, size); if (frame) frame->prev_frame = prev_frame; else { wasm_set_exception((WASMModuleInstance*)exec_env->module_inst, "WASM interp failed: stack overflow."); } return frame; } static inline void FREE_FRAME(WASMExecEnv *exec_env, WASMInterpFrame *frame) { wasm_exec_env_free_wasm_frame(exec_env, frame); } static void wasm_interp_call_func_native(WASMModuleInstance *module_inst, WASMExecEnv *exec_env, WASMFunctionInstance *cur_func, WASMInterpFrame *prev_frame) { WASMFunctionImport *func_import = cur_func->u.func_import; unsigned local_cell_num = 2; WASMInterpFrame *frame; uint32 argv_ret[2]; char buf[128]; bool ret; if (!(frame = ALLOC_FRAME(exec_env, wasm_interp_interp_frame_size(local_cell_num), prev_frame))) return; frame->function = cur_func; frame->ip = NULL; frame->sp = frame->lp + local_cell_num; wasm_exec_env_set_cur_frame(exec_env, frame); if (!func_import->func_ptr_linked) { snprintf(buf, sizeof(buf), "fail to call unlinked import function (%s, %s)", func_import->module_name, func_import->field_name); wasm_set_exception(module_inst, buf); return; } if (!func_import->call_conv_raw) { ret = wasm_runtime_invoke_native(exec_env, func_import->func_ptr_linked, func_import->func_type, func_import->signature, func_import->attachment, frame->lp, cur_func->param_cell_num, argv_ret); } else { ret = wasm_runtime_invoke_native_raw(exec_env, func_import->func_ptr_linked, func_import->func_type, func_import->signature, func_import->attachment, frame->lp, cur_func->param_cell_num, argv_ret); } if (!ret) return; if (cur_func->ret_cell_num == 1) { prev_frame->sp[0] = argv_ret[0]; prev_frame->sp++; } else if (cur_func->ret_cell_num == 2) { prev_frame->sp[0] = argv_ret[0]; prev_frame->sp[1] = argv_ret[1]; prev_frame->sp += 2; } FREE_FRAME(exec_env, frame); wasm_exec_env_set_cur_frame(exec_env, prev_frame); } #if WASM_ENABLE_LABELS_AS_VALUES != 0 #define HANDLE_OP(opcode) HANDLE_##opcode #define FETCH_OPCODE_AND_DISPATCH() goto *handle_table[*frame_ip++] #define HANDLE_OP_END() FETCH_OPCODE_AND_DISPATCH() #else /* else of WASM_ENABLE_LABELS_AS_VALUES */ #define HANDLE_OP(opcode) case opcode #define HANDLE_OP_END() continue #endif /* end of WASM_ENABLE_LABELS_AS_VALUES */ static void wasm_interp_call_func_bytecode(WASMModuleInstance *module, WASMExecEnv *exec_env, WASMFunctionInstance *cur_func, WASMInterpFrame *prev_frame) { WASMMemoryInstance *memory = module->default_memory; int32 heap_base_offset = memory ? memory->heap_base_offset : 0; uint32 num_bytes_per_page = memory ? memory->num_bytes_per_page : 0; uint32 total_mem_size = memory ? num_bytes_per_page * memory->cur_page_count - heap_base_offset : 0; uint8 *global_data = module->global_data; WASMTableInstance *table = module->default_table; WASMGlobalInstance *globals = module->globals; uint8 opcode_IMPDEP = WASM_OP_IMPDEP; WASMInterpFrame *frame = NULL; /* Points to this special opcode so as to jump to the call_method_from_entry. */ register uint8 *frame_ip = &opcode_IMPDEP; /* cache of frame->ip */ register uint32 *frame_lp = NULL; /* cache of frame->lp */ register uint32 *frame_sp = NULL; /* cache of frame->sp */ WASMBranchBlock *frame_csp = NULL; WASMGlobalInstance *global; BlockAddr *cache_items; uint8 *frame_ip_end = frame_ip + 1; uint8 opcode, block_ret_type; uint32 *depths = NULL; uint32 depth_buf[BR_TABLE_TMP_BUF_LEN]; uint32 i, depth, cond, count, fidx, tidx, frame_size = 0; uint64 all_cell_num = 0; int32 didx, val; uint8 *else_addr, *end_addr, *maddr = NULL; uint32 local_idx, local_offset, global_idx; uint8 local_type, *global_addr; uint32 cache_index; #if WASM_ENABLE_LABELS_AS_VALUES != 0 #define HANDLE_OPCODE(op) &&HANDLE_##op DEFINE_GOTO_TABLE (const void *, handle_table); #undef HANDLE_OPCODE #endif /* Size of memory load. This starts with the first memory load operator at opcode 0x28 */ uint32 LOAD_SIZE[] = { 4, 8, 4, 8, 1, 1, 2, 2, 1, 1, 2, 2, 4, 4, /* loads */ 4, 8, 4, 8, 1, 2, 1, 2, 4 }; /* stores */ #if WASM_ENABLE_LABELS_AS_VALUES == 0 while (frame_ip < frame_ip_end) { opcode = *frame_ip++; switch (opcode) { #else FETCH_OPCODE_AND_DISPATCH (); #endif /* control instructions */ HANDLE_OP (WASM_OP_UNREACHABLE): wasm_set_exception(module, "unreachable"); goto got_exception; HANDLE_OP (WASM_OP_NOP): HANDLE_OP_END (); HANDLE_OP (WASM_OP_BLOCK): block_ret_type = *frame_ip++; cache_index = ((uintptr_t)frame_ip) & (uintptr_t)(BLOCK_ADDR_CACHE_SIZE - 1); cache_items = exec_env->block_addr_cache[cache_index]; if (cache_items[0].start_addr == frame_ip) { end_addr = cache_items[0].end_addr; } else if (cache_items[1].start_addr == frame_ip) { end_addr = cache_items[1].end_addr; } else if (!wasm_loader_find_block_addr((BlockAddr*)exec_env->block_addr_cache, frame_ip, (uint8*)-1, BLOCK_TYPE_BLOCK, &else_addr, &end_addr, NULL, 0)) { wasm_set_exception(module, "find block address failed"); goto got_exception; } PUSH_CSP(BLOCK_TYPE_BLOCK, block_ret_type, end_addr); HANDLE_OP_END (); HANDLE_OP (WASM_OP_LOOP): block_ret_type = *frame_ip++; PUSH_CSP(BLOCK_TYPE_LOOP, block_ret_type, frame_ip); HANDLE_OP_END (); HANDLE_OP (WASM_OP_IF): block_ret_type = *frame_ip++; cache_index = ((uintptr_t)frame_ip) & (uintptr_t)(BLOCK_ADDR_CACHE_SIZE - 1); cache_items = exec_env->block_addr_cache[cache_index]; if (cache_items[0].start_addr == frame_ip) { else_addr = cache_items[0].else_addr; end_addr = cache_items[0].end_addr; } else if (cache_items[1].start_addr == frame_ip) { else_addr = cache_items[1].else_addr; end_addr = cache_items[1].end_addr; } else if (!wasm_loader_find_block_addr((BlockAddr*)exec_env->block_addr_cache, frame_ip, (uint8*)-1, BLOCK_TYPE_IF, &else_addr, &end_addr, NULL, 0)) { wasm_set_exception(module, "find block address failed"); goto got_exception; } cond = (uint32)POP_I32(); PUSH_CSP(BLOCK_TYPE_IF, block_ret_type, end_addr); /* condition of the if branch is false, else condition is met */ if (cond == 0) { /* if there is no else branch, go to the end addr */ if (else_addr == NULL) { POP_CSP(); frame_ip = end_addr + 1; } /* if there is an else branch, go to the else addr */ else frame_ip = else_addr + 1; } HANDLE_OP_END (); HANDLE_OP (WASM_OP_ELSE): /* comes from the if branch in WASM_OP_IF */ frame_ip = (frame_csp - 1)->target_addr; HANDLE_OP_END (); HANDLE_OP (WASM_OP_END): if (frame_csp > frame->csp_bottom + 1) { POP_CSP(); } else { /* end of function, treat as WASM_OP_RETURN */ frame_sp -= cur_func->ret_cell_num; for (i = 0; i < cur_func->ret_cell_num; i++) { *prev_frame->sp++ = frame_sp[i]; } goto return_func; } HANDLE_OP_END (); HANDLE_OP (WASM_OP_BR): read_leb_uint32(frame_ip, frame_ip_end, depth); POP_CSP_N(depth); HANDLE_OP_END (); HANDLE_OP (WASM_OP_BR_IF): read_leb_uint32(frame_ip, frame_ip_end, depth); cond = (uint32)POP_I32(); if (cond) POP_CSP_N(depth); HANDLE_OP_END (); HANDLE_OP (WASM_OP_BR_TABLE): read_leb_uint32(frame_ip, frame_ip_end, count); if (count <= BR_TABLE_TMP_BUF_LEN) depths = depth_buf; else { uint64 total_size = sizeof(uint32) * (uint64)count; if (total_size >= UINT32_MAX || !(depths = wasm_runtime_malloc((uint32)total_size))) { wasm_set_exception(module, "WASM interp failed: allocate memory failed."); goto got_exception; } } for (i = 0; i < count; i++) { read_leb_uint32(frame_ip, frame_ip_end, depths[i]); } read_leb_uint32(frame_ip, frame_ip_end, depth); didx = POP_I32(); if (didx >= 0 && (uint32)didx < count) { depth = depths[didx]; } if (depths != depth_buf) { wasm_runtime_free(depths); depths = NULL; } POP_CSP_N(depth); HANDLE_OP_END (); HANDLE_OP (WASM_OP_RETURN): frame_sp -= cur_func->ret_cell_num; for (i = 0; i < cur_func->ret_cell_num; i++) { *prev_frame->sp++ = frame_sp[i]; } goto return_func; HANDLE_OP (WASM_OP_CALL): read_leb_uint32(frame_ip, frame_ip_end, fidx); bh_assert(fidx < module->function_count); cur_func = module->functions + fidx; goto call_func_from_interp; HANDLE_OP (WASM_OP_CALL_INDIRECT): { WASMType *cur_type, *cur_func_type; read_leb_uint32(frame_ip, frame_ip_end, tidx); if (tidx >= module->module->type_count) { wasm_set_exception(module, "type index is overflow"); goto got_exception; } cur_type = module->module->types[tidx]; /* to skip 0x00 here */ frame_ip++; val = POP_I32(); if (val < 0 || val >= (int32)table->cur_size) { wasm_set_exception(module, "undefined element"); goto got_exception; } fidx = ((uint32*)table->base_addr)[val]; if (fidx == (uint32)-1) { wasm_set_exception(module, "uninitialized element"); goto got_exception; } cur_func = module->functions + fidx; if (cur_func->is_import_func) cur_func_type = cur_func->u.func_import->func_type; else cur_func_type = cur_func->u.func->func_type; if (!wasm_type_equal(cur_type, cur_func_type)) { wasm_set_exception(module, "indirect call type mismatch"); goto got_exception; } goto call_func_from_interp; } /* parametric instructions */ HANDLE_OP (WASM_OP_DROP): { frame_sp--; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_DROP_64): { frame_sp -= 2; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_SELECT): { cond = (uint32)POP_I32(); frame_sp--; if (!cond) *(frame_sp - 1) = *frame_sp; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_SELECT_64): { cond = (uint32)POP_I32(); frame_sp -= 2; if (!cond) { *(frame_sp - 2) = *frame_sp; *(frame_sp - 1) = *(frame_sp + 1); } HANDLE_OP_END (); } /* variable instructions */ HANDLE_OP (WASM_OP_GET_LOCAL): { GET_LOCAL_INDEX_TYPE_AND_OFFSET(); switch (local_type) { case VALUE_TYPE_I32: case VALUE_TYPE_F32: PUSH_I32(*(int32*)(frame_lp + local_offset)); break; case VALUE_TYPE_I64: case VALUE_TYPE_F64: PUSH_I64(GET_I64_FROM_ADDR(frame_lp + local_offset)); break; default: wasm_set_exception(module, "invalid local type"); goto got_exception; } HANDLE_OP_END (); } HANDLE_OP (EXT_OP_GET_LOCAL_FAST): { local_offset = *frame_ip++; if (local_offset & 0x80) PUSH_I64(GET_I64_FROM_ADDR(frame_lp + (local_offset & 0x7F))); else PUSH_I32(*(int32*)(frame_lp + local_offset)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_SET_LOCAL): { GET_LOCAL_INDEX_TYPE_AND_OFFSET(); switch (local_type) { case VALUE_TYPE_I32: case VALUE_TYPE_F32: *(int32*)(frame_lp + local_offset) = POP_I32(); break; case VALUE_TYPE_I64: case VALUE_TYPE_F64: PUT_I64_TO_ADDR((uint32*)(frame_lp + local_offset), POP_I64()); break; default: wasm_set_exception(module, "invalid local type"); goto got_exception; } HANDLE_OP_END (); } HANDLE_OP (EXT_OP_SET_LOCAL_FAST): { local_offset = *frame_ip++; if (local_offset & 0x80) PUT_I64_TO_ADDR((uint32*)(frame_lp + (local_offset & 0x7F)), POP_I64()); else *(int32*)(frame_lp + local_offset) = POP_I32(); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_TEE_LOCAL): { GET_LOCAL_INDEX_TYPE_AND_OFFSET(); switch (local_type) { case VALUE_TYPE_I32: case VALUE_TYPE_F32: *(int32*)(frame_lp + local_offset) = *(int32*)(frame_sp - 1); break; case VALUE_TYPE_I64: case VALUE_TYPE_F64: PUT_I64_TO_ADDR((uint32*)(frame_lp + local_offset), GET_I64_FROM_ADDR(frame_sp - 2)); break; default: wasm_set_exception(module, "invalid local type"); goto got_exception; } HANDLE_OP_END (); } HANDLE_OP (EXT_OP_TEE_LOCAL_FAST): { local_offset = *frame_ip++; if (local_offset & 0x80) PUT_I64_TO_ADDR((uint32*)(frame_lp + (local_offset & 0x7F)), GET_I64_FROM_ADDR(frame_sp - 2)); else *(int32*)(frame_lp + local_offset) = *(int32*)(frame_sp - 1); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_GET_GLOBAL): { read_leb_uint32(frame_ip, frame_ip_end, global_idx); bh_assert(global_idx < module->global_count); global = globals + global_idx; global_addr = global_data + global->data_offset; switch (global->type) { case VALUE_TYPE_I32: case VALUE_TYPE_F32: PUSH_I32(*(uint32*)global_addr); break; case VALUE_TYPE_I64: case VALUE_TYPE_F64: PUSH_I64(GET_I64_FROM_ADDR((uint32*)global_addr)); break; default: wasm_set_exception(module, "invalid global type"); goto got_exception; } HANDLE_OP_END (); } HANDLE_OP (WASM_OP_SET_GLOBAL): { read_leb_uint32(frame_ip, frame_ip_end, global_idx); bh_assert(global_idx < module->global_count); global = globals + global_idx; global_addr = global_data + global->data_offset; switch (global->type) { case VALUE_TYPE_I32: case VALUE_TYPE_F32: *(int32*)global_addr = POP_I32(); break; case VALUE_TYPE_I64: case VALUE_TYPE_F64: PUT_I64_TO_ADDR((uint32*)global_addr, POP_I64()); break; default: wasm_set_exception(module, "invalid global type"); goto got_exception; } HANDLE_OP_END (); } /* memory load instructions */ HANDLE_OP (WASM_OP_I32_LOAD): HANDLE_OP (WASM_OP_I64_LOAD): HANDLE_OP (WASM_OP_F32_LOAD): HANDLE_OP (WASM_OP_F64_LOAD): HANDLE_OP (WASM_OP_I32_LOAD8_S): HANDLE_OP (WASM_OP_I32_LOAD8_U): HANDLE_OP (WASM_OP_I32_LOAD16_S): HANDLE_OP (WASM_OP_I32_LOAD16_U): HANDLE_OP (WASM_OP_I64_LOAD8_S): HANDLE_OP (WASM_OP_I64_LOAD8_U): HANDLE_OP (WASM_OP_I64_LOAD16_S): HANDLE_OP (WASM_OP_I64_LOAD16_U): HANDLE_OP (WASM_OP_I64_LOAD32_S): HANDLE_OP (WASM_OP_I64_LOAD32_U): { uint32 offset, flags, addr; GET_OPCODE(); read_leb_uint32(frame_ip, frame_ip_end, flags); read_leb_uint32(frame_ip, frame_ip_end, offset); addr = (uint32)POP_I32(); CHECK_MEMORY_OVERFLOW(); #if WASM_ENABLE_LABELS_AS_VALUES != 0 static const void *handle_load_table[] = { &&HANDLE_LOAD_WASM_OP_I32_LOAD, &&HANDLE_LOAD_WASM_OP_I64_LOAD, &&HANDLE_LOAD_WASM_OP_F32_LOAD, &&HANDLE_LOAD_WASM_OP_F64_LOAD, &&HANDLE_LOAD_WASM_OP_I32_LOAD8_S, &&HANDLE_LOAD_WASM_OP_I32_LOAD8_U, &&HANDLE_LOAD_WASM_OP_I32_LOAD16_S, &&HANDLE_LOAD_WASM_OP_I32_LOAD16_U, &&HANDLE_LOAD_WASM_OP_I64_LOAD8_S, &&HANDLE_LOAD_WASM_OP_I64_LOAD8_U, &&HANDLE_LOAD_WASM_OP_I64_LOAD16_S, &&HANDLE_LOAD_WASM_OP_I64_LOAD16_U, &&HANDLE_LOAD_WASM_OP_I64_LOAD32_S, &&HANDLE_LOAD_WASM_OP_I64_LOAD32_U }; #define HANDLE_OP_LOAD(opcode) HANDLE_LOAD_##opcode goto *handle_load_table[opcode - WASM_OP_I32_LOAD]; #else #define HANDLE_OP_LOAD(opcode) case opcode switch (opcode) #endif { HANDLE_OP_LOAD(WASM_OP_I32_LOAD): PUSH_I32(LOAD_I32(maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD): PUSH_I64(LOAD_I64(maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_F32_LOAD): PUSH_I32(LOAD_I32(maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_F64_LOAD): PUSH_F64(LOAD_F64(maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I32_LOAD8_S): PUSH_I32(sign_ext_8_32(*(int8*)maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I32_LOAD8_U): PUSH_I32((uint32)(*(uint8*)maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I32_LOAD16_S): PUSH_I32(sign_ext_16_32(LOAD_I16(maddr))); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I32_LOAD16_U): PUSH_I32((uint32)(LOAD_U16(maddr))); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD8_S): PUSH_I64(sign_ext_8_64(*(int8*)maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD8_U): PUSH_I64((uint64)(*(uint8*)maddr)); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD16_S): PUSH_I64(sign_ext_16_64(LOAD_I16(maddr))); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD16_U): PUSH_I64((uint64)(LOAD_U16(maddr))); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD32_S): PUSH_I64(sign_ext_32_64(LOAD_I32(maddr))); HANDLE_OP_END(); HANDLE_OP_LOAD(WASM_OP_I64_LOAD32_U): PUSH_I64((uint64)(LOAD_U32(maddr))); HANDLE_OP_END(); } (void)flags; HANDLE_OP_END (); } /* memory store instructions */ HANDLE_OP (WASM_OP_F32_STORE): { uint32 offset, flags, addr; GET_OPCODE(); read_leb_uint32(frame_ip, frame_ip_end, flags); read_leb_uint32(frame_ip, frame_ip_end, offset); frame_sp--; addr = (uint32)POP_I32(); CHECK_MEMORY_OVERFLOW(); STORE_U32(maddr, frame_sp[1]); (void)flags; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F64_STORE): { uint32 offset, flags, addr; GET_OPCODE(); read_leb_uint32(frame_ip, frame_ip_end, flags); read_leb_uint32(frame_ip, frame_ip_end, offset); frame_sp -= 2; addr = (uint32)POP_I32(); CHECK_MEMORY_OVERFLOW(); STORE_U32(maddr, frame_sp[1]); STORE_U32(maddr + 4, frame_sp[2]); (void)flags; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_STORE): HANDLE_OP (WASM_OP_I32_STORE8): HANDLE_OP (WASM_OP_I32_STORE16): { uint32 offset, flags, addr; uint32 sval; GET_OPCODE(); read_leb_uint32(frame_ip, frame_ip_end, flags); read_leb_uint32(frame_ip, frame_ip_end, offset); sval = (uint32)POP_I32(); addr = (uint32)POP_I32(); CHECK_MEMORY_OVERFLOW(); switch (opcode) { case WASM_OP_I32_STORE: STORE_U32(maddr, sval); break; case WASM_OP_I32_STORE8: *(uint8*)maddr = (uint8)sval; break; case WASM_OP_I32_STORE16: STORE_U16(maddr, (uint16)sval); break; } (void)flags; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_STORE): HANDLE_OP (WASM_OP_I64_STORE8): HANDLE_OP (WASM_OP_I64_STORE16): HANDLE_OP (WASM_OP_I64_STORE32): { uint32 offset, flags, addr; uint64 sval; GET_OPCODE(); read_leb_uint32(frame_ip, frame_ip_end, flags); read_leb_uint32(frame_ip, frame_ip_end, offset); sval = (uint64)POP_I64(); addr = (uint32)POP_I32(); CHECK_MEMORY_OVERFLOW(); switch (opcode) { case WASM_OP_I64_STORE: STORE_I64(maddr, sval); break; case WASM_OP_I64_STORE8: *(uint8*)maddr = (uint8)sval; break; case WASM_OP_I64_STORE16: STORE_U16(maddr, (uint16)sval); break; case WASM_OP_I64_STORE32: STORE_U32(maddr, (uint32)sval); break; } (void)flags; HANDLE_OP_END (); } /* memory size and memory grow instructions */ HANDLE_OP (WASM_OP_MEMORY_SIZE): { uint32 reserved; read_leb_uint32(frame_ip, frame_ip_end, reserved); PUSH_I32(memory->cur_page_count); (void)reserved; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_MEMORY_GROW): { uint32 reserved, delta, prev_page_count = memory->cur_page_count; read_leb_uint32(frame_ip, frame_ip_end, reserved); delta = (uint32)POP_I32(); if (!wasm_enlarge_memory(module, delta)) { /* fail to memory.grow, return -1 */ PUSH_I32(-1); if (wasm_get_exception(module)) { os_printf("%s\n", wasm_get_exception(module)); wasm_set_exception(module, NULL); } } else { /* success, return previous page count */ PUSH_I32(prev_page_count); /* update the memory instance ptr */ memory = module->default_memory; total_mem_size = num_bytes_per_page * memory->cur_page_count - heap_base_offset; } (void)reserved; HANDLE_OP_END (); } /* constant instructions */ HANDLE_OP (WASM_OP_I32_CONST): DEF_OP_I_CONST(int32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_CONST): DEF_OP_I_CONST(int64, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_CONST): { uint8 *p_float = (uint8*)frame_sp++; for (i = 0; i < sizeof(float32); i++) *p_float++ = *frame_ip++; HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F64_CONST): { uint8 *p_float = (uint8*)frame_sp++; frame_sp++; for (i = 0; i < sizeof(float64); i++) *p_float++ = *frame_ip++; HANDLE_OP_END (); } /* comparison instructions of i32 */ HANDLE_OP (WASM_OP_I32_EQZ): DEF_OP_EQZ(I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_EQ): DEF_OP_CMP(uint32, I32, ==); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_NE): DEF_OP_CMP(uint32, I32, !=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_LT_S): DEF_OP_CMP(int32, I32, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_LT_U): DEF_OP_CMP(uint32, I32, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_GT_S): DEF_OP_CMP(int32, I32, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_GT_U): DEF_OP_CMP(uint32, I32, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_LE_S): DEF_OP_CMP(int32, I32, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_LE_U): DEF_OP_CMP(uint32, I32, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_GE_S): DEF_OP_CMP(int32, I32, >=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_GE_U): DEF_OP_CMP(uint32, I32, >=); HANDLE_OP_END (); /* comparison instructions of i64 */ HANDLE_OP (WASM_OP_I64_EQZ): DEF_OP_EQZ(I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_EQ): DEF_OP_CMP(uint64, I64, ==); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_NE): DEF_OP_CMP(uint64, I64, !=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_LT_S): DEF_OP_CMP(int64, I64, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_LT_U): DEF_OP_CMP(uint64, I64, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_GT_S): DEF_OP_CMP(int64, I64, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_GT_U): DEF_OP_CMP(uint64, I64, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_LE_S): DEF_OP_CMP(int64, I64, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_LE_U): DEF_OP_CMP(uint64, I64, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_GE_S): DEF_OP_CMP(int64, I64, >=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_GE_U): DEF_OP_CMP(uint64, I64, >=); HANDLE_OP_END (); /* comparison instructions of f32 */ HANDLE_OP (WASM_OP_F32_EQ): DEF_OP_CMP(float32, F32, ==); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_NE): DEF_OP_CMP(float32, F32, !=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_LT): DEF_OP_CMP(float32, F32, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_GT): DEF_OP_CMP(float32, F32, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_LE): DEF_OP_CMP(float32, F32, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_GE): DEF_OP_CMP(float32, F32, >=); HANDLE_OP_END (); /* comparison instructions of f64 */ HANDLE_OP (WASM_OP_F64_EQ): DEF_OP_CMP(float64, F64, ==); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_NE): DEF_OP_CMP(float64, F64, !=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_LT): DEF_OP_CMP(float64, F64, <); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_GT): DEF_OP_CMP(float64, F64, >); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_LE): DEF_OP_CMP(float64, F64, <=); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_GE): DEF_OP_CMP(float64, F64, >=); HANDLE_OP_END (); /* numberic instructions of i32 */ HANDLE_OP (WASM_OP_I32_CLZ): DEF_OP_BIT_COUNT(uint32, I32, clz32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_CTZ): DEF_OP_BIT_COUNT(uint32, I32, ctz32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_POPCNT): DEF_OP_BIT_COUNT(uint32, I32, popcount32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_ADD): DEF_OP_NUMERIC(uint32, uint32, I32, +); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_SUB): DEF_OP_NUMERIC(uint32, uint32, I32, -); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_MUL): DEF_OP_NUMERIC(uint32, uint32, I32, *); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_DIV_S): { int32 a, b; b = POP_I32(); a = POP_I32(); if (a == (int32)0x80000000 && b == -1) { wasm_set_exception(module, "integer overflow"); goto got_exception; } if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I32(a / b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_DIV_U): { uint32 a, b; b = (uint32)POP_I32(); a = (uint32)POP_I32(); if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I32(a / b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_REM_S): { int32 a, b; b = POP_I32(); a = POP_I32(); if (a == (int32)0x80000000 && b == -1) { PUSH_I32(0); HANDLE_OP_END (); } if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I32(a % b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_REM_U): { uint32 a, b; b = (uint32)POP_I32(); a = (uint32)POP_I32(); if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I32(a % b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_AND): DEF_OP_NUMERIC(uint32, uint32, I32, &); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_OR): DEF_OP_NUMERIC(uint32, uint32, I32, |); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_XOR): DEF_OP_NUMERIC(uint32, uint32, I32, ^); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_SHL): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC(uint32, uint32, I32, <<); #else DEF_OP_NUMERIC2(uint32, uint32, I32, <<); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_SHR_S): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC(int32, uint32, I32, >>); #else DEF_OP_NUMERIC2(int32, uint32, I32, >>); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_SHR_U): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC(uint32, uint32, I32, >>); #else DEF_OP_NUMERIC2(uint32, uint32, I32, >>); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_ROTL): { uint32 a, b; b = (uint32)POP_I32(); a = (uint32)POP_I32(); PUSH_I32(rotl32(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_ROTR): { uint32 a, b; b = (uint32)POP_I32(); a = (uint32)POP_I32(); PUSH_I32(rotr32(a, b)); HANDLE_OP_END (); } /* numberic instructions of i64 */ HANDLE_OP (WASM_OP_I64_CLZ): DEF_OP_BIT_COUNT(uint64, I64, clz64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_CTZ): DEF_OP_BIT_COUNT(uint64, I64, ctz64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_POPCNT): DEF_OP_BIT_COUNT(uint64, I64, popcount64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_ADD): DEF_OP_NUMERIC_64(uint64, uint64, I64, +); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_SUB): DEF_OP_NUMERIC_64(uint64, uint64, I64, -); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_MUL): DEF_OP_NUMERIC_64(uint64, uint64, I64, *); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_DIV_S): { int64 a, b; b = POP_I64(); a = POP_I64(); if (a == (int64)0x8000000000000000LL && b == -1) { wasm_set_exception(module, "integer overflow"); goto got_exception; } if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I64(a / b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_DIV_U): { uint64 a, b; b = (uint64)POP_I64(); a = (uint64)POP_I64(); if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I64(a / b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_REM_S): { int64 a, b; b = POP_I64(); a = POP_I64(); if (a == (int64)0x8000000000000000LL && b == -1) { PUSH_I64(0); HANDLE_OP_END (); } if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I64(a % b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_REM_U): { uint64 a, b; b = (uint64)POP_I64(); a = (uint64)POP_I64(); if (b == 0) { wasm_set_exception(module, "integer divide by zero"); goto got_exception; } PUSH_I64(a % b); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_AND): DEF_OP_NUMERIC_64(uint64, uint64, I64, &); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_OR): DEF_OP_NUMERIC_64(uint64, uint64, I64, |); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_XOR): DEF_OP_NUMERIC_64(uint64, uint64, I64, ^); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_SHL): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC_64(uint64, uint64, I64, <<); #else DEF_OP_NUMERIC2_64(uint64, uint64, I64, <<); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_SHR_S): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC_64(int64, uint64, I64, >>); #else DEF_OP_NUMERIC2_64(int64, uint64, I64, >>); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_SHR_U): { #if defined(BUILD_TARGET_X86_64) || defined(BUILD_TARGET_X86_32) DEF_OP_NUMERIC_64(uint64, uint64, I64, >>); #else DEF_OP_NUMERIC2_64(uint64, uint64, I64, >>); #endif HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_ROTL): { uint64 a, b; b = (uint64)POP_I64(); a = (uint64)POP_I64(); PUSH_I64(rotl64(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I64_ROTR): { uint64 a, b; b = (uint64)POP_I64(); a = (uint64)POP_I64(); PUSH_I64(rotr64(a, b)); HANDLE_OP_END (); } /* numberic instructions of f32 */ HANDLE_OP (WASM_OP_F32_ABS): DEF_OP_MATH(float32, F32, fabs); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_NEG): { int32 i32 = (int32)frame_sp[-1]; int32 sign_bit = i32 & (1 << 31); if (sign_bit) frame_sp[-1] = i32 & ~(1 << 31); else frame_sp[-1] = (uint32)(i32 | (1 << 31)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F32_CEIL): DEF_OP_MATH(float32, F32, ceil); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_FLOOR): DEF_OP_MATH(float32, F32, floor); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_TRUNC): DEF_OP_MATH(float32, F32, trunc); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_NEAREST): DEF_OP_MATH(float32, F32, rint); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_SQRT): DEF_OP_MATH(float32, F32, sqrt); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_ADD): DEF_OP_NUMERIC(float32, float32, F32, +); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_SUB): DEF_OP_NUMERIC(float32, float32, F32, -); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_MUL): DEF_OP_NUMERIC(float32, float32, F32, *); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_DIV): DEF_OP_NUMERIC(float32, float32, F32, /); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_MIN): { float32 a, b; b = POP_F32(); a = POP_F32(); if (isnan(a)) PUSH_F32(a); else if (isnan(b)) PUSH_F32(b); else PUSH_F32(wa_fmin(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F32_MAX): { float32 a, b; b = POP_F32(); a = POP_F32(); if (isnan(a)) PUSH_F32(a); else if (isnan(b)) PUSH_F32(b); else PUSH_F32(wa_fmax(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F32_COPYSIGN): { float32 a, b; b = POP_F32(); a = POP_F32(); PUSH_F32(signbit(b) ? -fabs(a) : fabs(a)); HANDLE_OP_END (); } /* numberic instructions of f64 */ HANDLE_OP (WASM_OP_F64_ABS): DEF_OP_MATH(float64, F64, fabs); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_NEG): { int64 i64 = GET_I64_FROM_ADDR(frame_sp - 2); int64 sign_bit = i64 & (((int64)1) << 63); if (sign_bit) PUT_I64_TO_ADDR(frame_sp - 2, ((uint64)i64 & ~(((uint64)1) << 63))); else PUT_I64_TO_ADDR(frame_sp - 2, ((uint64)i64 | (((uint64)1) << 63))); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F64_CEIL): DEF_OP_MATH(float64, F64, ceil); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_FLOOR): DEF_OP_MATH(float64, F64, floor); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_TRUNC): DEF_OP_MATH(float64, F64, trunc); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_NEAREST): DEF_OP_MATH(float64, F64, rint); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_SQRT): DEF_OP_MATH(float64, F64, sqrt); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_ADD): DEF_OP_NUMERIC_64(float64, float64, F64, +); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_SUB): DEF_OP_NUMERIC_64(float64, float64, F64, -); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_MUL): DEF_OP_NUMERIC_64(float64, float64, F64, *); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_DIV): DEF_OP_NUMERIC_64(float64, float64, F64, /); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_MIN): { float64 a, b; b = POP_F64(); a = POP_F64(); if (isnan(a)) PUSH_F64(a); else if (isnan(b)) PUSH_F64(b); else PUSH_F64(wa_fmin(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F64_MAX): { float64 a, b; b = POP_F64(); a = POP_F64(); if (isnan(a)) PUSH_F64(a); else if (isnan(b)) PUSH_F64(b); else PUSH_F64(wa_fmax(a, b)); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_F64_COPYSIGN): { float64 a, b; b = POP_F64(); a = POP_F64(); PUSH_F64(signbit(b) ? -fabs(a) : fabs(a)); HANDLE_OP_END (); } /* conversions of i32 */ HANDLE_OP (WASM_OP_I32_WRAP_I64): { int32 value = (int32)(POP_I64() & 0xFFFFFFFFLL); PUSH_I32(value); HANDLE_OP_END (); } HANDLE_OP (WASM_OP_I32_TRUNC_S_F32): /* We don't use INT32_MIN/INT32_MAX/UINT32_MIN/UINT32_MAX, since float/double values of ieee754 cannot precisely represent all int32/uint32/int64/uint64 values, e.g.: UINT32_MAX is 4294967295, but (float32)4294967295 is 4294967296.0f, but not 4294967295.0f. */ DEF_OP_TRUNC_F32(-2147483904.0f, 2147483648.0f, true, true); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_TRUNC_U_F32): DEF_OP_TRUNC_F32(-1.0f, 4294967296.0f, true, false); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_TRUNC_S_F64): DEF_OP_TRUNC_F64(-2147483649.0, 2147483648.0, true, true); /* frame_sp can't be moved in trunc function, we need to manually adjust it if src and dst op's cell num is different */ frame_sp--; HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_TRUNC_U_F64): DEF_OP_TRUNC_F64(-1.0, 4294967296.0, true, false); frame_sp--; HANDLE_OP_END (); /* conversions of i64 */ HANDLE_OP (WASM_OP_I64_EXTEND_S_I32): DEF_OP_CONVERT(int64, I64, int32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_EXTEND_U_I32): DEF_OP_CONVERT(int64, I64, uint32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_TRUNC_S_F32): DEF_OP_TRUNC_F32(-9223373136366403584.0f, 9223372036854775808.0f, false, true); frame_sp++; HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_TRUNC_U_F32): DEF_OP_TRUNC_F32(-1.0f, 18446744073709551616.0f, false, false); frame_sp++; HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_TRUNC_S_F64): DEF_OP_TRUNC_F64(-9223372036854777856.0, 9223372036854775808.0, false, true); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_TRUNC_U_F64): DEF_OP_TRUNC_F64(-1.0, 18446744073709551616.0, false, false); HANDLE_OP_END (); /* conversions of f32 */ HANDLE_OP (WASM_OP_F32_CONVERT_S_I32): DEF_OP_CONVERT(float32, F32, int32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_CONVERT_U_I32): DEF_OP_CONVERT(float32, F32, uint32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_CONVERT_S_I64): DEF_OP_CONVERT(float32, F32, int64, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_CONVERT_U_I64): DEF_OP_CONVERT(float32, F32, uint64, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F32_DEMOTE_F64): DEF_OP_CONVERT(float32, F32, float64, F64); HANDLE_OP_END (); /* conversions of f64 */ HANDLE_OP (WASM_OP_F64_CONVERT_S_I32): DEF_OP_CONVERT(float64, F64, int32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_CONVERT_U_I32): DEF_OP_CONVERT(float64, F64, uint32, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_CONVERT_S_I64): DEF_OP_CONVERT(float64, F64, int64, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_CONVERT_U_I64): DEF_OP_CONVERT(float64, F64, uint64, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_F64_PROMOTE_F32): DEF_OP_CONVERT(float64, F64, float32, F32); HANDLE_OP_END (); /* reinterpretations */ HANDLE_OP (WASM_OP_I32_REINTERPRET_F32): HANDLE_OP (WASM_OP_I64_REINTERPRET_F64): HANDLE_OP (WASM_OP_F32_REINTERPRET_I32): HANDLE_OP (WASM_OP_F64_REINTERPRET_I64): HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_EXTEND8_S): DEF_OP_CONVERT(int32, I32, int8, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I32_EXTEND16_S): DEF_OP_CONVERT(int32, I32, int16, I32); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_EXTEND8_S): DEF_OP_CONVERT(int64, I64, int8, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_EXTEND16_S): DEF_OP_CONVERT(int64, I64, int16, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_I64_EXTEND32_S): DEF_OP_CONVERT(int64, I64, int32, I64); HANDLE_OP_END (); HANDLE_OP (WASM_OP_MISC_PREFIX): { opcode = *frame_ip++; switch (opcode) { case WASM_OP_I32_TRUNC_SAT_S_F32: DEF_OP_TRUNC_SAT_F32(-2147483904.0f, 2147483648.0f, true, true); break; case WASM_OP_I32_TRUNC_SAT_U_F32: DEF_OP_TRUNC_SAT_F32(-1.0f, 4294967296.0f, true, false); break; case WASM_OP_I32_TRUNC_SAT_S_F64: DEF_OP_TRUNC_SAT_F64(-2147483649.0, 2147483648.0, true, true); frame_sp--; break; case WASM_OP_I32_TRUNC_SAT_U_F64: DEF_OP_TRUNC_SAT_F64(-1.0, 4294967296.0, true, false); frame_sp--; break; case WASM_OP_I64_TRUNC_SAT_S_F32: DEF_OP_TRUNC_SAT_F32(-9223373136366403584.0f, 9223372036854775808.0f, false, true); frame_sp++; break; case WASM_OP_I64_TRUNC_SAT_U_F32: DEF_OP_TRUNC_SAT_F32(-1.0f, 18446744073709551616.0f, false, false); frame_sp++; break; case WASM_OP_I64_TRUNC_SAT_S_F64: DEF_OP_TRUNC_SAT_F64(-9223372036854777856.0, 9223372036854775808.0, false, true); break; case WASM_OP_I64_TRUNC_SAT_U_F64: DEF_OP_TRUNC_SAT_F64(-1.0f, 18446744073709551616.0, false, false); break; default: wasm_set_exception(module, "WASM interp failed: unsupported opcode."); goto got_exception; break; } HANDLE_OP_END (); } HANDLE_OP (WASM_OP_IMPDEP): frame = prev_frame; frame_ip = frame->ip; frame_sp = frame->sp; frame_csp = frame->csp; goto call_func_from_entry; #if WASM_ENABLE_LABELS_AS_VALUES == 0 default: wasm_set_exception(module, "WASM interp failed: unsupported opcode."); goto got_exception; } #endif #if WASM_ENABLE_LABELS_AS_VALUES != 0 HANDLE_OP (WASM_OP_UNUSED_0x06): HANDLE_OP (WASM_OP_UNUSED_0x07): HANDLE_OP (WASM_OP_UNUSED_0x08): HANDLE_OP (WASM_OP_UNUSED_0x09): HANDLE_OP (WASM_OP_UNUSED_0x0a): HANDLE_OP (WASM_OP_UNUSED_0x12): HANDLE_OP (WASM_OP_UNUSED_0x13): HANDLE_OP (WASM_OP_UNUSED_0x14): HANDLE_OP (WASM_OP_UNUSED_0x15): HANDLE_OP (WASM_OP_UNUSED_0x16): HANDLE_OP (WASM_OP_UNUSED_0x17): HANDLE_OP (WASM_OP_UNUSED_0x18): HANDLE_OP (WASM_OP_UNUSED_0x19): HANDLE_OP (WASM_OP_UNUSED_0x1c): HANDLE_OP (WASM_OP_UNUSED_0x1d): HANDLE_OP (WASM_OP_UNUSED_0x1e): HANDLE_OP (WASM_OP_UNUSED_0x1f): HANDLE_OP (WASM_OP_UNUSED_0x25): HANDLE_OP (WASM_OP_UNUSED_0x26): HANDLE_OP (WASM_OP_UNUSED_0x27): /* Used by fast interpreter */ HANDLE_OP (EXT_OP_SET_LOCAL_FAST_I64): HANDLE_OP (EXT_OP_TEE_LOCAL_FAST_I64): HANDLE_OP (EXT_OP_COPY_STACK_TOP): HANDLE_OP (EXT_OP_COPY_STACK_TOP_I64): { wasm_set_exception(module, "WASM interp failed: unsupported opcode."); goto got_exception; } #endif #if WASM_ENABLE_LABELS_AS_VALUES == 0 continue; #else FETCH_OPCODE_AND_DISPATCH (); #endif call_func_from_interp: /* Only do the copy when it's called from interpreter. */ { WASMInterpFrame *outs_area = wasm_exec_env_wasm_stack_top(exec_env); POP(cur_func->param_cell_num); SYNC_ALL_TO_FRAME(); word_copy(outs_area->lp, frame_sp, cur_func->param_cell_num); prev_frame = frame; } call_func_from_entry: { if (cur_func->is_import_func) { wasm_interp_call_func_native(module, exec_env, cur_func, prev_frame); prev_frame = frame->prev_frame; cur_func = frame->function; UPDATE_ALL_FROM_FRAME(); memory = module->default_memory; if (wasm_get_exception(module)) goto got_exception; } else { WASMFunction *cur_wasm_func = cur_func->u.func; WASMType *func_type; uint8 ret_type; func_type = cur_wasm_func->func_type; all_cell_num = (uint64)cur_func->param_cell_num + (uint64)cur_func->local_cell_num + (uint64)cur_wasm_func->max_stack_cell_num + ((uint64)cur_wasm_func->max_block_num) * sizeof(WASMBranchBlock) / 4; if (all_cell_num >= UINT32_MAX) { wasm_set_exception(module, "WASM interp failed: stack overflow."); goto got_exception; } frame_size = wasm_interp_interp_frame_size((uint32)all_cell_num); if (!(frame = ALLOC_FRAME(exec_env, frame_size, prev_frame))) { frame = prev_frame; goto got_exception; } /* Initialize the interpreter context. */ frame->function = cur_func; frame_ip = wasm_get_func_code(cur_func); frame_ip_end = wasm_get_func_code_end(cur_func); frame_lp = frame->lp; frame_sp = frame->sp_bottom = frame_lp + cur_func->param_cell_num + cur_func->local_cell_num; frame->sp_boundary = frame->sp_bottom + cur_wasm_func->max_stack_cell_num; frame_csp = frame->csp_bottom = (WASMBranchBlock*)frame->sp_boundary; frame->csp_boundary = frame->csp_bottom + cur_wasm_func->max_block_num; /* Initialize the local varialbes */ memset(frame_lp + cur_func->param_cell_num, 0, (uint32)(cur_func->local_cell_num * 4)); /* Push function block as first block */ ret_type = func_type->result_count ? cur_func->param_types[func_type->param_count] : VALUE_TYPE_VOID; PUSH_CSP(BLOCK_TYPE_FUNCTION, ret_type, frame_ip_end - 1); wasm_exec_env_set_cur_frame(exec_env, (WASMRuntimeFrame*)frame); } HANDLE_OP_END (); } return_func: { FREE_FRAME(exec_env, frame); wasm_exec_env_set_cur_frame(exec_env, (WASMRuntimeFrame*)prev_frame); if (!prev_frame->ip) /* Called from native. */ return; RECOVER_CONTEXT(prev_frame); HANDLE_OP_END (); } out_of_bounds: wasm_set_exception(module, "out of bounds memory access"); got_exception: return; #if WASM_ENABLE_LABELS_AS_VALUES == 0 } #else FETCH_OPCODE_AND_DISPATCH (); #endif } void wasm_interp_call_wasm(WASMModuleInstance *module_inst, WASMExecEnv *exec_env, WASMFunctionInstance *function, uint32 argc, uint32 argv[]) { WASMRuntimeFrame *prev_frame = wasm_exec_env_get_cur_frame(exec_env); WASMInterpFrame *frame, *outs_area; /* Allocate sufficient cells for all kinds of return values. */ unsigned all_cell_num = 2, i; /* This frame won't be used by JITed code, so only allocate interp frame here. */ unsigned frame_size = wasm_interp_interp_frame_size(all_cell_num); if (argc != function->param_cell_num) { char buf[128]; snprintf(buf, sizeof(buf), "invalid argument count %d, expected %d", argc, function->param_cell_num); wasm_set_exception(module_inst, buf); return; } if ((uint8*)&prev_frame < exec_env->native_stack_boundary) { wasm_set_exception((WASMModuleInstance*)exec_env->module_inst, "WASM interp failed: native stack overflow."); return; } if (!(frame = ALLOC_FRAME(exec_env, frame_size, (WASMInterpFrame*)prev_frame))) return; outs_area = wasm_exec_env_wasm_stack_top(exec_env); frame->function = NULL; frame->ip = NULL; /* There is no local variable. */ frame->sp = frame->lp + 0; if (argc > 0) word_copy(outs_area->lp, argv, argc); wasm_exec_env_set_cur_frame(exec_env, frame); if (function->is_import_func) wasm_interp_call_func_native(module_inst, exec_env, function, frame); else wasm_interp_call_func_bytecode(module_inst, exec_env, function, frame); /* Output the return value to the caller */ if (!wasm_get_exception(module_inst)) { for (i = 0; i < function->ret_cell_num; i++) argv[i] = *(frame->sp + i - function->ret_cell_num); } wasm_exec_env_set_cur_frame(exec_env, prev_frame); FREE_FRAME(exec_env, frame); }