| ;;; TOOL: run-wasm2c |
| (module |
| (type $fd_write_t (func (param i32 i32 i32 i32) (result i32))) |
| (import "wasi_snapshot_preview1" "fd_write" (func $fd_write (type $fd_write_t))) |
| (import "wasi_snapshot_preview1" "proc_exit" (func $proc_exit (param i32))) |
| (memory (export "memory") 1) |
| (data (i32.const 8) "Hello, world.\0a") |
| (table funcref (elem $fd_write)) |
| (func (export "_start") |
| ;; the string is already in memory (from the active data segment) |
| ;; step 1: store the string's address and length in memory |
| (i32.store (i32.const 0) ;; iov_base location in memory |
| (i32.const 8)) ;; iov_base value |
| (i32.store (i32.const 4) ;; iov_size location in memory |
| (i32.const 14)) ;; iov_size value |
| ;; step 2: write the string from memory |
| (call $proc_exit (call_indirect (type $fd_write_t) |
| (i32.const 1) ;; fd |
| (i32.const 0) ;; iovs location in memory |
| (i32.const 1) ;; iovs_len |
| (i32.const 0) ;; retptr0 location in memory |
| (i32.const 0))))) ;; fd_write function |
| |
| (;; STDOUT ;;; |
| /* Automatically generated by wasm2c */ |
| #ifndef WASM_H_GENERATED_ |
| #define WASM_H_GENERATED_ |
| |
| #include "wasm-rt.h" |
| |
| #include <stdint.h> |
| |
| #ifndef WASM_RT_CORE_TYPES_DEFINED |
| #define WASM_RT_CORE_TYPES_DEFINED |
| typedef uint8_t u8; |
| typedef int8_t s8; |
| typedef uint16_t u16; |
| typedef int16_t s16; |
| typedef uint32_t u32; |
| typedef int32_t s32; |
| typedef uint64_t u64; |
| typedef int64_t s64; |
| typedef float f32; |
| typedef double f64; |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct w2c_wasi__snapshot__preview1; |
| |
| typedef struct w2c_test { |
| struct w2c_wasi__snapshot__preview1* w2c_wasi__snapshot__preview1_instance; |
| wasm_rt_memory_t w2c_memory; |
| wasm_rt_funcref_table_t w2c_T0; |
| } w2c_test; |
| |
| void wasm2c_test_instantiate(w2c_test*, struct w2c_wasi__snapshot__preview1*); |
| void wasm2c_test_free(w2c_test*); |
| wasm_rt_func_type_t wasm2c_test_get_func_type(uint32_t param_count, uint32_t result_count, ...); |
| |
| /* import: 'wasi_snapshot_preview1' 'fd_write' */ |
| u32 w2c_wasi__snapshot__preview1_fd_write(struct w2c_wasi__snapshot__preview1*, u32, u32, u32, u32); |
| |
| /* import: 'wasi_snapshot_preview1' 'proc_exit' */ |
| void w2c_wasi__snapshot__preview1_proc_exit(struct w2c_wasi__snapshot__preview1*, u32); |
| |
| /* export: 'memory' */ |
| wasm_rt_memory_t* w2c_test_memory(w2c_test* instance); |
| |
| /* export: '_start' */ |
| void w2c_test_0x5Fstart(w2c_test*); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* WASM_H_GENERATED_ */ |
| /* Automatically generated by wasm2c */ |
| #include <assert.h> |
| #include <math.h> |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <string.h> |
| #if defined(__MINGW32__) |
| #include <malloc.h> |
| #elif defined(_MSC_VER) |
| #include <intrin.h> |
| #include <malloc.h> |
| #define alloca _alloca |
| #elif defined(__FreeBSD__) || defined(__OpenBSD__) |
| #include <stdlib.h> |
| #else |
| #include <alloca.h> |
| #endif |
| |
| #include "wasm.h" |
| #define IS_SINGLE_UNSHARED_MEMORY 1 |
| |
| // Computes a pointer to an object of the given size in a little-endian memory. |
| // |
| // On a little-endian host, this is just &mem->data[addr] - the object's size is |
| // unused. On a big-endian host, it's &mem->data[mem->size - addr - n], where n |
| // is the object's size. |
| // |
| // Note that mem may be evaluated multiple times. |
| // |
| // Parameters: |
| // mem - The memory. |
| // addr - The address. |
| // n - The size of the object. |
| // |
| // Result: |
| // A pointer for an object of size n. |
| #if WABT_BIG_ENDIAN |
| #define MEM_ADDR(mem, addr, n) ((mem)->data_end - (addr) - (n)) |
| #else |
| #define MEM_ADDR(mem, addr, n) &((mem)->data[addr]) |
| #endif |
| |
| // We can only use Segue for this module if it uses a single unshared imported |
| // or exported memory |
| #if WASM_RT_USE_SEGUE && IS_SINGLE_UNSHARED_MEMORY |
| #define WASM_RT_USE_SEGUE_FOR_THIS_MODULE 1 |
| #else |
| #define WASM_RT_USE_SEGUE_FOR_THIS_MODULE 0 |
| #endif |
| |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE |
| // POSIX uses FS for TLS, GS is free |
| static inline void* wasm_rt_segue_read_base() { |
| if (wasm_rt_fsgsbase_inst_supported) { |
| return (void*)__builtin_ia32_rdgsbase64(); |
| } else { |
| return wasm_rt_syscall_get_segue_base(); |
| } |
| } |
| static inline void wasm_rt_segue_write_base(void* base) { |
| #if WASM_RT_SEGUE_FREE_SEGMENT |
| if (wasm_rt_last_segment_val == base) { |
| return; |
| } |
| |
| wasm_rt_last_segment_val = base; |
| #endif |
| |
| if (wasm_rt_fsgsbase_inst_supported) { |
| __builtin_ia32_wrgsbase64((uintptr_t)base); |
| } else { |
| wasm_rt_syscall_set_segue_base(base); |
| } |
| } |
| #define MEM_ADDR_MEMOP(mem, addr, n) ((uint8_t __seg_gs*)(uintptr_t)addr) |
| #else |
| #define MEM_ADDR_MEMOP(mem, addr, n) MEM_ADDR(mem, addr, n) |
| #endif |
| |
| #define TRAP(x) (wasm_rt_trap(WASM_RT_TRAP_##x), 0) |
| |
| #if WASM_RT_STACK_DEPTH_COUNT |
| #define FUNC_PROLOGUE \ |
| if (++wasm_rt_call_stack_depth > WASM_RT_MAX_CALL_STACK_DEPTH) \ |
| TRAP(EXHAUSTION); |
| |
| #define FUNC_EPILOGUE --wasm_rt_call_stack_depth |
| #else |
| #define FUNC_PROLOGUE |
| |
| #define FUNC_EPILOGUE |
| #endif |
| |
| #define UNREACHABLE TRAP(UNREACHABLE) |
| |
| static inline bool func_types_eq(const wasm_rt_func_type_t a, |
| const wasm_rt_func_type_t b) { |
| return (a == b) || LIKELY(a && b && !memcmp(a, b, 32)); |
| } |
| |
| #define CHECK_CALL_INDIRECT(table, ft, x) \ |
| (LIKELY((x) < table.size && table.data[x].func && \ |
| func_types_eq(ft, table.data[x].func_type)) || \ |
| TRAP(CALL_INDIRECT)) |
| |
| #define DO_CALL_INDIRECT(table, t, x, ...) ((t)table.data[x].func)(__VA_ARGS__) |
| |
| #define CALL_INDIRECT(table, t, ft, x, ...) \ |
| (CHECK_CALL_INDIRECT(table, ft, x), \ |
| DO_CALL_INDIRECT(table, t, x, __VA_ARGS__)) |
| |
| static inline bool add_overflow(uint64_t a, uint64_t b, uint64_t* resptr) { |
| #if __has_builtin(__builtin_add_overflow) |
| return __builtin_add_overflow(a, b, resptr); |
| #elif defined(_MSC_VER) |
| return _addcarry_u64(0, a, b, resptr); |
| #else |
| #error "Missing implementation of __builtin_add_overflow or _addcarry_u64" |
| #endif |
| } |
| |
| #define RANGE_CHECK(mem, offset, len) \ |
| do { \ |
| uint64_t res; \ |
| if (UNLIKELY(add_overflow(offset, len, &res))) \ |
| TRAP(OOB); \ |
| if (UNLIKELY(res > (mem)->size)) \ |
| TRAP(OOB); \ |
| } while (0); |
| |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE && WASM_RT_SANITY_CHECKS |
| #include <stdio.h> |
| #define WASM_RT_CHECK_BASE(mem) \ |
| if (((uintptr_t)((mem)->data)) != ((uintptr_t)wasm_rt_segue_read_base())) { \ |
| puts("Segment register mismatch\n"); \ |
| abort(); \ |
| } |
| #else |
| #define WASM_RT_CHECK_BASE(mem) |
| #endif |
| |
| // MEMCHECK_DEFAULT32 is an "accelerated" MEMCHECK used only for |
| // default-page-size, 32-bit memories. It may do nothing at all |
| // (if hardware bounds-checking is enabled via guard pages) |
| // or it may do a slightly faster RANGE_CHECK. |
| #if WASM_RT_MEMCHECK_GUARD_PAGES |
| #define MEMCHECK_DEFAULT32(mem, a, t) WASM_RT_CHECK_BASE(mem); |
| #else |
| #define MEMCHECK_DEFAULT32(mem, a, t) \ |
| WASM_RT_CHECK_BASE(mem); \ |
| if (UNLIKELY(a + (uint64_t)sizeof(t) > mem->size)) \ |
| TRAP(OOB); |
| #endif |
| |
| // MEMCHECK_GENERAL can be used for any memory |
| #define MEMCHECK_GENERAL(mem, a, t) \ |
| WASM_RT_CHECK_BASE(mem); \ |
| RANGE_CHECK(mem, a, sizeof(t)); |
| |
| #ifdef __GNUC__ |
| #define FORCE_READ_INT(var) __asm__("" ::"r"(var)); |
| // Clang on Mips requires "f" constraints on floats |
| // See https://github.com/llvm/llvm-project/issues/64241 |
| #if defined(__clang__) && \ |
| (defined(mips) || defined(__mips__) || defined(__mips)) |
| #define FORCE_READ_FLOAT(var) __asm__("" ::"f"(var)); |
| #else |
| #define FORCE_READ_FLOAT(var) __asm__("" ::"r"(var)); |
| #endif |
| #else |
| #define FORCE_READ_INT(var) |
| #define FORCE_READ_FLOAT(var) |
| #endif |
| |
| static inline void load_data(u8* dest, const u8* src, size_t n) { |
| if (!n) { |
| return; |
| } |
| #if WABT_BIG_ENDIAN |
| for (size_t i = 0; i < n; i++) { |
| dest[i] = src[n - i - 1]; |
| } |
| #else |
| wasm_rt_memcpy(dest, src, n); |
| #endif |
| } |
| |
| #define LOAD_DATA(m, o, i, s) \ |
| do { \ |
| RANGE_CHECK((&m), o, s); \ |
| load_data(MEM_ADDR(&m, o, s), i, s); \ |
| } while (0) |
| |
| #define DEF_MEM_CHECKS0(name, shared, mem_type, ret_kw, return_type) \ |
| static inline return_type name##_default32(wasm_rt##shared##memory_t* mem, \ |
| u64 addr) { \ |
| MEMCHECK_DEFAULT32(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr); \ |
| } \ |
| static inline return_type name(wasm_rt##shared##memory_t* mem, u64 addr) { \ |
| MEMCHECK_GENERAL(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr); \ |
| } |
| |
| #define DEF_MEM_CHECKS1(name, shared, mem_type, ret_kw, return_type, \ |
| val_type1) \ |
| static inline return_type name##_default32(wasm_rt##shared##memory_t* mem, \ |
| u64 addr, val_type1 val1) { \ |
| MEMCHECK_DEFAULT32(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr, val1); \ |
| } \ |
| static inline return_type name(wasm_rt##shared##memory_t* mem, u64 addr, \ |
| val_type1 val1) { \ |
| MEMCHECK_GENERAL(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr, val1); \ |
| } |
| |
| #define DEF_MEM_CHECKS2(name, shared, mem_type, ret_kw, return_type, \ |
| val_type1, val_type2) \ |
| static inline return_type name##_default32(wasm_rt##shared##memory_t* mem, \ |
| u64 addr, val_type1 val1, \ |
| val_type2 val2) { \ |
| MEMCHECK_DEFAULT32(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr, val1, val2); \ |
| } \ |
| static inline return_type name(wasm_rt##shared##memory_t* mem, u64 addr, \ |
| val_type1 val1, val_type2 val2) { \ |
| MEMCHECK_GENERAL(mem, addr, mem_type); \ |
| ret_kw name##_unchecked(mem, addr, val1, val2); \ |
| } |
| |
| #define DEFINE_LOAD(name, t1, t2, t3, force_read) \ |
| static inline t3 name##_unchecked(wasm_rt_memory_t* mem, u64 addr) { \ |
| t1 result; \ |
| wasm_rt_memcpy(&result, MEM_ADDR_MEMOP(mem, addr, sizeof(t1)), \ |
| sizeof(t1)); \ |
| force_read(result); \ |
| return (t3)(t2)result; \ |
| } \ |
| DEF_MEM_CHECKS0(name, _, t1, return, t3) |
| |
| #define DEFINE_STORE(name, t1, t2) \ |
| static inline void name##_unchecked(wasm_rt_memory_t* mem, u64 addr, \ |
| t2 value) { \ |
| t1 wrapped = (t1)value; \ |
| wasm_rt_memcpy(MEM_ADDR_MEMOP(mem, addr, sizeof(t1)), &wrapped, \ |
| sizeof(t1)); \ |
| } \ |
| DEF_MEM_CHECKS1(name, _, t1, , void, t2) |
| |
| DEFINE_LOAD(i32_load, u32, u32, u32, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load, u64, u64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(f32_load, f32, f32, f32, FORCE_READ_FLOAT) |
| DEFINE_LOAD(f64_load, f64, f64, f64, FORCE_READ_FLOAT) |
| DEFINE_LOAD(i32_load8_s, s8, s32, u32, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load8_s, s8, s64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(i32_load8_u, u8, u32, u32, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load8_u, u8, u64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(i32_load16_s, s16, s32, u32, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load16_s, s16, s64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(i32_load16_u, u16, u32, u32, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load16_u, u16, u64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load32_s, s32, s64, u64, FORCE_READ_INT) |
| DEFINE_LOAD(i64_load32_u, u32, u64, u64, FORCE_READ_INT) |
| DEFINE_STORE(i32_store, u32, u32) |
| DEFINE_STORE(i64_store, u64, u64) |
| DEFINE_STORE(f32_store, f32, f32) |
| DEFINE_STORE(f64_store, f64, f64) |
| DEFINE_STORE(i32_store8, u8, u32) |
| DEFINE_STORE(i32_store16, u16, u32) |
| DEFINE_STORE(i64_store8, u8, u64) |
| DEFINE_STORE(i64_store16, u16, u64) |
| DEFINE_STORE(i64_store32, u32, u64) |
| |
| #if defined(_MSC_VER) |
| |
| // Adapted from |
| // https://github.com/nemequ/portable-snippets/blob/master/builtin/builtin.h |
| |
| static inline int I64_CLZ(unsigned long long v) { |
| unsigned long r = 0; |
| #if defined(_M_AMD64) || defined(_M_ARM) |
| if (_BitScanReverse64(&r, v)) { |
| return 63 - r; |
| } |
| #else |
| if (_BitScanReverse(&r, (unsigned long)(v >> 32))) { |
| return 31 - r; |
| } else if (_BitScanReverse(&r, (unsigned long)v)) { |
| return 63 - r; |
| } |
| #endif |
| return 64; |
| } |
| |
| static inline int I32_CLZ(unsigned long v) { |
| unsigned long r = 0; |
| if (_BitScanReverse(&r, v)) { |
| return 31 - r; |
| } |
| return 32; |
| } |
| |
| static inline int I64_CTZ(unsigned long long v) { |
| if (!v) { |
| return 64; |
| } |
| unsigned long r = 0; |
| #if defined(_M_AMD64) || defined(_M_ARM) |
| _BitScanForward64(&r, v); |
| return (int)r; |
| #else |
| if (_BitScanForward(&r, (unsigned int)(v))) { |
| return (int)(r); |
| } |
| |
| _BitScanForward(&r, (unsigned int)(v >> 32)); |
| return (int)(r + 32); |
| #endif |
| } |
| |
| static inline int I32_CTZ(unsigned long v) { |
| if (!v) { |
| return 32; |
| } |
| unsigned long r = 0; |
| _BitScanForward(&r, v); |
| return (int)r; |
| } |
| |
| #define POPCOUNT_DEFINE_PORTABLE(f_n, T) \ |
| static inline u32 f_n(T x) { \ |
| x = x - ((x >> 1) & (T) ~(T)0 / 3); \ |
| x = (x & (T) ~(T)0 / 15 * 3) + ((x >> 2) & (T) ~(T)0 / 15 * 3); \ |
| x = (x + (x >> 4)) & (T) ~(T)0 / 255 * 15; \ |
| return (T)(x * ((T) ~(T)0 / 255)) >> (sizeof(T) - 1) * 8; \ |
| } |
| |
| POPCOUNT_DEFINE_PORTABLE(I32_POPCNT, u32) |
| POPCOUNT_DEFINE_PORTABLE(I64_POPCNT, u64) |
| |
| #undef POPCOUNT_DEFINE_PORTABLE |
| |
| #else |
| |
| #define I32_CLZ(x) ((x) ? __builtin_clz(x) : 32) |
| #define I64_CLZ(x) ((x) ? __builtin_clzll(x) : 64) |
| #define I32_CTZ(x) ((x) ? __builtin_ctz(x) : 32) |
| #define I64_CTZ(x) ((x) ? __builtin_ctzll(x) : 64) |
| #define I32_POPCNT(x) (__builtin_popcount(x)) |
| #define I64_POPCNT(x) (__builtin_popcountll(x)) |
| |
| #endif |
| |
| #define DIV_S(ut, min, x, y) \ |
| ((UNLIKELY((y) == 0)) ? TRAP(DIV_BY_ZERO) \ |
| : (UNLIKELY((x) == min && (y) == -1)) ? TRAP(INT_OVERFLOW) \ |
| : (ut)((x) / (y))) |
| |
| #define REM_S(ut, min, x, y) \ |
| ((UNLIKELY((y) == 0)) ? TRAP(DIV_BY_ZERO) \ |
| : (UNLIKELY((x) == min && (y) == -1)) ? 0 \ |
| : (ut)((x) % (y))) |
| |
| #define I32_DIV_S(x, y) DIV_S(u32, INT32_MIN, (s32)x, (s32)y) |
| #define I64_DIV_S(x, y) DIV_S(u64, INT64_MIN, (s64)x, (s64)y) |
| #define I32_REM_S(x, y) REM_S(u32, INT32_MIN, (s32)x, (s32)y) |
| #define I64_REM_S(x, y) REM_S(u64, INT64_MIN, (s64)x, (s64)y) |
| |
| #define DIVREM_U(op, x, y) \ |
| ((UNLIKELY((y) == 0)) ? TRAP(DIV_BY_ZERO) : ((x)op(y))) |
| |
| #define DIV_U(x, y) DIVREM_U(/, x, y) |
| #define REM_U(x, y) DIVREM_U(%, x, y) |
| |
| #define ROTL(x, y, mask) \ |
| (((x) << ((y) & (mask))) | ((x) >> (((mask) - (y) + 1) & (mask)))) |
| #define ROTR(x, y, mask) \ |
| (((x) >> ((y) & (mask))) | ((x) << (((mask) - (y) + 1) & (mask)))) |
| |
| #define I32_ROTL(x, y) ROTL(x, y, 31) |
| #define I64_ROTL(x, y) ROTL(x, y, 63) |
| #define I32_ROTR(x, y) ROTR(x, y, 31) |
| #define I64_ROTR(x, y) ROTR(x, y, 63) |
| |
| #define FMIN(x, y) \ |
| ((UNLIKELY((x) != (x))) ? NAN \ |
| : (UNLIKELY((y) != (y))) ? NAN \ |
| : (UNLIKELY((x) == 0 && (y) == 0)) ? (signbit(x) ? x : y) \ |
| : (x < y) ? x \ |
| : y) |
| |
| #define FMAX(x, y) \ |
| ((UNLIKELY((x) != (x))) ? NAN \ |
| : (UNLIKELY((y) != (y))) ? NAN \ |
| : (UNLIKELY((x) == 0 && (y) == 0)) ? (signbit(x) ? y : x) \ |
| : (x > y) ? x \ |
| : y) |
| |
| #define TRUNC_S(ut, st, ft, min, minop, max, x) \ |
| ((UNLIKELY((x) != (x))) ? TRAP(INVALID_CONVERSION) \ |
| : (UNLIKELY(!((x)minop(min) && (x) < (max)))) ? TRAP(INT_OVERFLOW) \ |
| : (ut)(st)(x)) |
| |
| #define I32_TRUNC_S_F32(x) \ |
| TRUNC_S(u32, s32, f32, (f32)INT32_MIN, >=, 2147483648.f, x) |
| #define I64_TRUNC_S_F32(x) \ |
| TRUNC_S(u64, s64, f32, (f32)INT64_MIN, >=, (f32)INT64_MAX, x) |
| #define I32_TRUNC_S_F64(x) \ |
| TRUNC_S(u32, s32, f64, -2147483649., >, 2147483648., x) |
| #define I64_TRUNC_S_F64(x) \ |
| TRUNC_S(u64, s64, f64, (f64)INT64_MIN, >=, (f64)INT64_MAX, x) |
| |
| #define TRUNC_U(ut, ft, max, x) \ |
| ((UNLIKELY((x) != (x))) ? TRAP(INVALID_CONVERSION) \ |
| : (UNLIKELY(!((x) > (ft) - 1 && (x) < (max)))) ? TRAP(INT_OVERFLOW) \ |
| : (ut)(x)) |
| |
| #define I32_TRUNC_U_F32(x) TRUNC_U(u32, f32, 4294967296.f, x) |
| #define I64_TRUNC_U_F32(x) TRUNC_U(u64, f32, (f32)UINT64_MAX, x) |
| #define I32_TRUNC_U_F64(x) TRUNC_U(u32, f64, 4294967296., x) |
| #define I64_TRUNC_U_F64(x) TRUNC_U(u64, f64, (f64)UINT64_MAX, x) |
| |
| #define TRUNC_SAT_S(ut, st, ft, min, smin, minop, max, smax, x) \ |
| ((UNLIKELY((x) != (x))) ? 0 \ |
| : (UNLIKELY(!((x)minop(min)))) ? smin \ |
| : (UNLIKELY(!((x) < (max)))) ? smax \ |
| : (ut)(st)(x)) |
| |
| #define I32_TRUNC_SAT_S_F32(x) \ |
| TRUNC_SAT_S(u32, s32, f32, (f32)INT32_MIN, INT32_MIN, >=, 2147483648.f, \ |
| INT32_MAX, x) |
| #define I64_TRUNC_SAT_S_F32(x) \ |
| TRUNC_SAT_S(u64, s64, f32, (f32)INT64_MIN, INT64_MIN, >=, (f32)INT64_MAX, \ |
| INT64_MAX, x) |
| #define I32_TRUNC_SAT_S_F64(x) \ |
| TRUNC_SAT_S(u32, s32, f64, -2147483649., INT32_MIN, >, 2147483648., \ |
| INT32_MAX, x) |
| #define I64_TRUNC_SAT_S_F64(x) \ |
| TRUNC_SAT_S(u64, s64, f64, (f64)INT64_MIN, INT64_MIN, >=, (f64)INT64_MAX, \ |
| INT64_MAX, x) |
| |
| #define TRUNC_SAT_U(ut, ft, max, smax, x) \ |
| ((UNLIKELY((x) != (x))) ? 0 \ |
| : (UNLIKELY(!((x) > (ft) - 1))) ? 0 \ |
| : (UNLIKELY(!((x) < (max)))) ? smax \ |
| : (ut)(x)) |
| |
| #define I32_TRUNC_SAT_U_F32(x) \ |
| TRUNC_SAT_U(u32, f32, 4294967296.f, UINT32_MAX, x) |
| #define I64_TRUNC_SAT_U_F32(x) \ |
| TRUNC_SAT_U(u64, f32, (f32)UINT64_MAX, UINT64_MAX, x) |
| #define I32_TRUNC_SAT_U_F64(x) TRUNC_SAT_U(u32, f64, 4294967296., UINT32_MAX, x) |
| #define I64_TRUNC_SAT_U_F64(x) \ |
| TRUNC_SAT_U(u64, f64, (f64)UINT64_MAX, UINT64_MAX, x) |
| |
| #define DEFINE_REINTERPRET(name, t1, t2) \ |
| static inline t2 name(t1 x) { \ |
| t2 result; \ |
| wasm_rt_memcpy(&result, &x, sizeof(result)); \ |
| return result; \ |
| } |
| |
| DEFINE_REINTERPRET(f32_reinterpret_i32, u32, f32) |
| DEFINE_REINTERPRET(i32_reinterpret_f32, f32, u32) |
| DEFINE_REINTERPRET(f64_reinterpret_i64, u64, f64) |
| DEFINE_REINTERPRET(i64_reinterpret_f64, f64, u64) |
| |
| static float quiet_nanf(float x) { |
| uint32_t tmp; |
| wasm_rt_memcpy(&tmp, &x, 4); |
| tmp |= 0x7fc00000lu; |
| wasm_rt_memcpy(&x, &tmp, 4); |
| return x; |
| } |
| |
| static double quiet_nan(double x) { |
| uint64_t tmp; |
| wasm_rt_memcpy(&tmp, &x, 8); |
| tmp |= 0x7ff8000000000000llu; |
| wasm_rt_memcpy(&x, &tmp, 8); |
| return x; |
| } |
| |
| static double wasm_quiet(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return x; |
| } |
| |
| static float wasm_quietf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return x; |
| } |
| |
| static double wasm_floor(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return floor(x); |
| } |
| |
| static float wasm_floorf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return floorf(x); |
| } |
| |
| static double wasm_ceil(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return ceil(x); |
| } |
| |
| static float wasm_ceilf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return ceilf(x); |
| } |
| |
| static double wasm_trunc(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return trunc(x); |
| } |
| |
| static float wasm_truncf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return truncf(x); |
| } |
| |
| static float wasm_nearbyintf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return nearbyintf(x); |
| } |
| |
| static double wasm_nearbyint(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return nearbyint(x); |
| } |
| |
| static float wasm_fabsf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| uint32_t tmp; |
| wasm_rt_memcpy(&tmp, &x, 4); |
| tmp = tmp & ~(1UL << 31); |
| wasm_rt_memcpy(&x, &tmp, 4); |
| return x; |
| } |
| return fabsf(x); |
| } |
| |
| static double wasm_fabs(double x) { |
| if (UNLIKELY(isnan(x))) { |
| uint64_t tmp; |
| wasm_rt_memcpy(&tmp, &x, 8); |
| tmp = tmp & ~(1ULL << 63); |
| wasm_rt_memcpy(&x, &tmp, 8); |
| return x; |
| } |
| return fabs(x); |
| } |
| |
| static double wasm_sqrt(double x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nan(x); |
| } |
| return sqrt(x); |
| } |
| |
| static float wasm_sqrtf(float x) { |
| if (UNLIKELY(isnan(x))) { |
| return quiet_nanf(x); |
| } |
| return sqrtf(x); |
| } |
| |
| static inline void memory_fill(wasm_rt_memory_t* mem, u64 d, u32 val, u64 n) { |
| RANGE_CHECK(mem, d, n); |
| memset(MEM_ADDR(mem, d, n), val, n); |
| } |
| |
| static inline void memory_copy(wasm_rt_memory_t* dest, |
| const wasm_rt_memory_t* src, |
| u64 dest_addr, |
| u64 src_addr, |
| u64 n) { |
| RANGE_CHECK(dest, dest_addr, n); |
| RANGE_CHECK(src, src_addr, n); |
| memmove(MEM_ADDR(dest, dest_addr, n), MEM_ADDR(src, src_addr, n), n); |
| } |
| |
| static inline void memory_init(wasm_rt_memory_t* dest, |
| const u8* src, |
| u32 src_size, |
| u64 dest_addr, |
| u32 src_addr, |
| u32 n) { |
| if (UNLIKELY(src_addr + (uint64_t)n > src_size)) |
| TRAP(OOB); |
| LOAD_DATA((*dest), dest_addr, src + src_addr, n); |
| } |
| |
| typedef enum { RefFunc, RefNull, GlobalGet } wasm_elem_segment_expr_type_t; |
| |
| typedef struct { |
| wasm_elem_segment_expr_type_t expr_type; |
| wasm_rt_func_type_t type; |
| wasm_rt_function_ptr_t func; |
| wasm_rt_tailcallee_t func_tailcallee; |
| size_t module_offset; |
| } wasm_elem_segment_expr_t; |
| |
| static inline void funcref_table_init(wasm_rt_funcref_table_t* dest, |
| const wasm_elem_segment_expr_t* src, |
| u32 src_size, |
| u64 dest_addr, |
| u32 src_addr, |
| u32 n, |
| void* module_instance) { |
| if (UNLIKELY(src_addr + (uint64_t)n > src_size)) |
| TRAP(OOB); |
| RANGE_CHECK(dest, dest_addr, n); |
| for (u32 i = 0; i < n; i++) { |
| const wasm_elem_segment_expr_t* const src_expr = &src[src_addr + i]; |
| wasm_rt_funcref_t* const dest_val = &(dest->data[dest_addr + i]); |
| switch (src_expr->expr_type) { |
| case RefFunc: |
| *dest_val = (wasm_rt_funcref_t){ |
| src_expr->type, src_expr->func, src_expr->func_tailcallee, |
| (char*)module_instance + src_expr->module_offset}; |
| break; |
| case RefNull: |
| *dest_val = wasm_rt_funcref_null_value; |
| break; |
| case GlobalGet: |
| *dest_val = **(wasm_rt_funcref_t**)((char*)module_instance + |
| src_expr->module_offset); |
| break; |
| } |
| } |
| } |
| |
| // Currently wasm2c only supports initializing externref tables with ref.null. |
| static inline void externref_table_init(wasm_rt_externref_table_t* dest, |
| u32 src_size, |
| u64 dest_addr, |
| u32 src_addr, |
| u32 n) { |
| if (UNLIKELY(src_addr + (uint64_t)n > src_size)) |
| TRAP(OOB); |
| RANGE_CHECK(dest, dest_addr, n); |
| for (u32 i = 0; i < n; i++) { |
| dest->data[dest_addr + i] = wasm_rt_externref_null_value; |
| } |
| } |
| |
| #define DEFINE_TABLE_COPY(type) \ |
| static inline void type##_table_copy(wasm_rt_##type##_table_t* dest, \ |
| const wasm_rt_##type##_table_t* src, \ |
| u64 dest_addr, u64 src_addr, u64 n) { \ |
| RANGE_CHECK(dest, dest_addr, n); \ |
| RANGE_CHECK(src, src_addr, n); \ |
| memmove(dest->data + dest_addr, src->data + src_addr, \ |
| n * sizeof(wasm_rt_##type##_t)); \ |
| } |
| |
| DEFINE_TABLE_COPY(funcref) |
| DEFINE_TABLE_COPY(externref) |
| |
| #define DEFINE_TABLE_GET(type) \ |
| static inline wasm_rt_##type##_t type##_table_get( \ |
| const wasm_rt_##type##_table_t* table, u64 i) { \ |
| if (UNLIKELY(i >= table->size)) \ |
| TRAP(OOB); \ |
| return table->data[i]; \ |
| } |
| |
| DEFINE_TABLE_GET(funcref) |
| DEFINE_TABLE_GET(externref) |
| |
| #define DEFINE_TABLE_SET(type) \ |
| static inline void type##_table_set(const wasm_rt_##type##_table_t* table, \ |
| u64 i, const wasm_rt_##type##_t val) { \ |
| if (UNLIKELY(i >= table->size)) \ |
| TRAP(OOB); \ |
| table->data[i] = val; \ |
| } |
| |
| DEFINE_TABLE_SET(funcref) |
| DEFINE_TABLE_SET(externref) |
| |
| #define DEFINE_TABLE_FILL(type) \ |
| static inline void type##_table_fill(const wasm_rt_##type##_table_t* table, \ |
| u64 d, const wasm_rt_##type##_t val, \ |
| u64 n) { \ |
| RANGE_CHECK(table, d, n); \ |
| for (uint32_t i = d; i < d + n; i++) { \ |
| table->data[i] = val; \ |
| } \ |
| } |
| |
| DEFINE_TABLE_FILL(funcref) |
| DEFINE_TABLE_FILL(externref) |
| |
| #if defined(__GNUC__) || defined(__clang__) |
| #define FUNC_TYPE_DECL_EXTERN_T(x) extern const char* const x |
| #define FUNC_TYPE_EXTERN_T(x) const char* const x |
| #define FUNC_TYPE_T(x) static const char* const x |
| #else |
| #define FUNC_TYPE_DECL_EXTERN_T(x) extern const char x[] |
| #define FUNC_TYPE_EXTERN_T(x) const char x[] |
| #define FUNC_TYPE_T(x) static const char x[] |
| #endif |
| |
| #if (__STDC_VERSION__ < 201112L) && !defined(static_assert) |
| #define static_assert(X) \ |
| extern int(*assertion(void))[!!sizeof(struct { int x : (X) ? 2 : -1; })]; |
| #endif |
| |
| #ifdef _MSC_VER |
| #define WEAK_FUNC_DECL(func, fallback) \ |
| __pragma(comment(linker, "/alternatename:" #func "=" #fallback)) \ |
| \ |
| void \ |
| fallback(void** instance_ptr, void* tail_call_stack, \ |
| wasm_rt_tailcallee_t* next) |
| #else |
| #define WEAK_FUNC_DECL(func, fallback) \ |
| __attribute__((weak)) void func(void** instance_ptr, void* tail_call_stack, \ |
| wasm_rt_tailcallee_t* next) |
| #endif |
| |
| static void w2c_test_0x5Fstart_0(w2c_test*); |
| |
| FUNC_TYPE_T(w2c_test_t0) = "\xf6\x98\x1b\xc6\x10\xda\xb7\xb2\x63\x37\xcd\xdc\x72\xca\xe9\x50\x00\x13\xba\x10\x6c\xde\x87\x27\x10\xf8\x86\x2f\xe3\xdb\x94\xe4"; |
| FUNC_TYPE_T(w2c_test_t1) = "\x89\x3a\x3d\x2c\x8f\x4d\x7f\x6d\x6c\x9d\x62\x67\x29\xaf\x3d\x44\x39\x8e\xc3\xf3\xe8\x51\xc1\x99\xb9\xdd\x9f\xd5\x3d\x1f\xd3\xe4"; |
| FUNC_TYPE_T(w2c_test_t2) = "\x36\xa9\xe7\xf1\xc9\x5b\x82\xff\xb9\x97\x43\xe0\xc5\xc4\xce\x95\xd8\x3c\x9a\x43\x0a\xac\x59\xf8\x4e\xf3\xcb\xfa\xb6\x14\x50\x68"; |
| |
| static u32 wrap_w2c_wasi__snapshot__preview1_fd_write(void *instance, u32 var_0, u32 var_1, u32 var_2, u32 var_3) { |
| return w2c_wasi__snapshot__preview1_fd_write((struct w2c_wasi__snapshot__preview1*) instance, var_0, var_1, var_2, var_3); |
| } |
| |
| static const u8 data_segment_data_w2c_test_d0[] = { |
| 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x2c, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64, |
| 0x2e, 0x0a, |
| }; |
| |
| static void init_memories(w2c_test* instance) { |
| wasm_rt_allocate_memory(&instance->w2c_memory, 1, 65536, 0, 65536); |
| LOAD_DATA(instance->w2c_memory, 8u, data_segment_data_w2c_test_d0, 14); |
| } |
| |
| static void init_data_instances(w2c_test *instance) { |
| } |
| |
| static const wasm_elem_segment_expr_t elem_segment_exprs_w2c_test_e0[] = { |
| {RefFunc, w2c_test_t0, (wasm_rt_function_ptr_t)wrap_w2c_wasi__snapshot__preview1_fd_write, {NULL}, offsetof(w2c_test, w2c_wasi__snapshot__preview1_instance)}, |
| }; |
| |
| static void init_tables(w2c_test* instance) { |
| wasm_rt_allocate_funcref_table(&instance->w2c_T0, 1, 1); |
| funcref_table_init(&instance->w2c_T0, elem_segment_exprs_w2c_test_e0, 1, 0u, 0, 1, instance); |
| } |
| |
| static void init_elem_instances(w2c_test *instance) { |
| } |
| |
| /* export: 'memory' */ |
| wasm_rt_memory_t* w2c_test_memory(w2c_test* instance) { |
| return &instance->w2c_memory; |
| } |
| |
| /* export: '_start' */ |
| void w2c_test_0x5Fstart(w2c_test* instance) { |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE |
| #if !WASM_RT_SEGUE_FREE_SEGMENT |
| void* segue_saved_base = wasm_rt_segue_read_base(); |
| #endif |
| wasm_rt_segue_write_base(instance->w2c_memory.data); |
| #endif |
| w2c_test_0x5Fstart_0(instance); |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE && !WASM_RT_SEGUE_FREE_SEGMENT |
| wasm_rt_segue_write_base(segue_saved_base); |
| #endif |
| } |
| |
| static void init_instance_import(w2c_test* instance, struct w2c_wasi__snapshot__preview1* w2c_wasi__snapshot__preview1_instance) { |
| instance->w2c_wasi__snapshot__preview1_instance = w2c_wasi__snapshot__preview1_instance; |
| } |
| |
| void wasm2c_test_instantiate(w2c_test* instance, struct w2c_wasi__snapshot__preview1* w2c_wasi__snapshot__preview1_instance) { |
| assert(wasm_rt_is_initialized()); |
| init_instance_import(instance, w2c_wasi__snapshot__preview1_instance); |
| init_tables(instance); |
| init_memories(instance); |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE |
| #if !WASM_RT_SEGUE_FREE_SEGMENT |
| void* segue_saved_base = wasm_rt_segue_read_base(); |
| #endif |
| wasm_rt_segue_write_base(instance->w2c_memory.data); |
| #endif |
| init_elem_instances(instance); |
| init_data_instances(instance); |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE && !WASM_RT_SEGUE_FREE_SEGMENT |
| wasm_rt_segue_write_base(segue_saved_base); |
| #endif |
| } |
| |
| void wasm2c_test_free(w2c_test* instance) { |
| wasm_rt_free_funcref_table(&instance->w2c_T0); |
| wasm_rt_free_memory(&instance->w2c_memory); |
| } |
| |
| wasm_rt_func_type_t wasm2c_test_get_func_type(uint32_t param_count, uint32_t result_count, ...) { |
| va_list args; |
| |
| if (param_count == 4 && result_count == 1) { |
| va_start(args, result_count); |
| if (true && va_arg(args, int) == WASM_RT_I32 && va_arg(args, int) == WASM_RT_I32 && va_arg(args, int) == WASM_RT_I32 && va_arg(args, int) == WASM_RT_I32 && va_arg(args, int) == WASM_RT_I32) { |
| va_end(args); |
| return w2c_test_t0; |
| } |
| va_end(args); |
| } |
| |
| if (param_count == 1 && result_count == 0) { |
| va_start(args, result_count); |
| if (true && va_arg(args, int) == WASM_RT_I32) { |
| va_end(args); |
| return w2c_test_t1; |
| } |
| va_end(args); |
| } |
| |
| if (param_count == 0 && result_count == 0) { |
| va_start(args, result_count); |
| if (true) { |
| va_end(args); |
| return w2c_test_t2; |
| } |
| va_end(args); |
| } |
| |
| return NULL; |
| } |
| |
| void w2c_test_0x5Fstart_0(w2c_test* instance) { |
| FUNC_PROLOGUE; |
| u32 var_i0, var_i1, var_i2, var_i3, var_i4; |
| var_i0 = 0u; |
| var_i1 = 8u; |
| i32_store_default32(&instance->w2c_memory, (u64)(var_i0), var_i1); |
| var_i0 = 4u; |
| var_i1 = 14u; |
| i32_store_default32(&instance->w2c_memory, (u64)(var_i0), var_i1); |
| var_i0 = 1u; |
| var_i1 = 0u; |
| var_i2 = 1u; |
| var_i3 = 0u; |
| var_i4 = 0u; |
| var_i0 = CALL_INDIRECT(instance->w2c_T0, u32 (*)(void*, u32, u32, u32, u32), w2c_test_t0, var_i4, instance->w2c_T0.data[var_i4].module_instance, var_i0, var_i1, var_i2, var_i3); |
| #if WASM_RT_USE_SEGUE_FOR_THIS_MODULE |
| wasm_rt_segue_write_base(instance->w2c_memory.data); |
| #endif |
| w2c_wasi__snapshot__preview1_proc_exit(instance->w2c_wasi__snapshot__preview1_instance, var_i0); |
| FUNC_EPILOGUE; |
| } |
| ;;; STDOUT ;;) |
