Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 433 insertions, 0 deletions

diff --git a/third_party/wasm2c/src/wasm2c.c.tmpl b/third_party/wasm2c/src/wasm2c.c.tmpl
new file mode 100644
index 0000000000..6539ddc8cc
--- /dev/null
+++ b/third_party/wasm2c/src/wasm2c.c.tmpl
@@ -0,0 +1,433 @@
+%%includes
+/* Automically generated by wasm2c */
+#include <math.h>
+#include <string.h>
+#include <stdlib.h>
+%%declarations
+#if defined(_MSC_VER)
+#  define UNLIKELY(x) (x)
+#  define LIKELY(x) (x)
+#else
+#  define UNLIKELY(x) __builtin_expect(!!(x), 0)
+#  define LIKELY(x) __builtin_expect(!!(x), 1)
+#endif
+
+#define TRAP(x) (wasm_rt_trap(WASM_RT_TRAP_##x), 0)
+
+#ifndef FUNC_PROLOGUE
+#define FUNC_PROLOGUE
+#endif
+
+#ifndef FUNC_EPILOGUE
+#define FUNC_EPILOGUE
+#endif
+
+#ifdef EXTERNAL_CALLBACK_PROLOGUE
+#define EXTERNAL_CALLBACK_PROLOGUE_EXEC(table, x)                        \
+  if (UNLIKELY(table.data[x].func_class == WASM_RT_EXTERNAL_FUNCTION)) { \
+    EXTERNAL_CALLBACK_PROLOGUE;                                          \
+  }
+#else
+#define EXTERNAL_CALLBACK_PROLOGUE_EXEC(table, x)
+#endif
+
+#ifdef EXTERNAL_CALLBACK_EPILOGUE
+#define EXTERNAL_CALLBACK_EPILOGUE_EXEC(table, x)                        \
+  if (UNLIKELY(table.data[x].func_class == WASM_RT_EXTERNAL_FUNCTION)) { \
+    EXTERNAL_CALLBACK_EPILOGUE;                                          \
+  }
+#else
+#define EXTERNAL_CALLBACK_EPILOGUE_EXEC(table, x)
+#endif
+
+#define UNREACHABLE (void) TRAP(UNREACHABLE)
+
+#define CALL_INDIRECT_VOID(table, t, ft, x, func_types, ...)                                         \
+  if (LIKELY((x) < table.size && table.data[x].func && table.data[x].func_type == func_types[ft])) { \
+    EXTERNAL_CALLBACK_PROLOGUE_EXEC(table, x);                                                       \
+    ((t)table.data[x].func)(__VA_ARGS__);                                                            \
+    EXTERNAL_CALLBACK_EPILOGUE_EXEC(table, x);                                                       \
+  } else {                                                                                           \
+    wasm_rt_callback_error_trap(&table, x, func_types[ft]);                                          \
+  }
+
+#define CALL_INDIRECT_RES(res, table, t, ft, x, func_types, ...)                                     \
+  if (LIKELY((x) < table.size && table.data[x].func && table.data[x].func_type == func_types[ft])) { \
+    EXTERNAL_CALLBACK_PROLOGUE_EXEC(table, x);                                                       \
+    res = ((t)table.data[x].func)(__VA_ARGS__);                                                      \
+    EXTERNAL_CALLBACK_EPILOGUE_EXEC(table, x);                                                       \
+  } else {                                                                                           \
+    wasm_rt_callback_error_trap(&table, x, func_types[ft]);                                          \
+  }
+
+#if defined(WASM2C_MALLOC_FAIL_CALLBACK)
+void WASM2C_MALLOC_FAIL_CALLBACK(u32 ptr_size);
+# define WASM2C_MALLOC_FAIL_CHECK(ptr, ptr_size)  \
+  if (!ptr) {                                     \
+    WASM2C_MALLOC_FAIL_CALLBACK(ptr_size);        \
+  }
+#else
+# define WASM2C_MALLOC_FAIL_CHECK(ptr, ptr_size)
+#endif
+
+#if defined(WASM_CHECK_SHADOW_MEMORY)
+#  define WASM2C_SHADOW_MEMORY_LOAD(mem, func_name, ptr, ptr_size)  wasm2c_shadow_memory_load(mem, func_name, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_STORE(mem, func_name, ptr, ptr_size) wasm2c_shadow_memory_store(mem, func_name, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_RESERVE(mem, ptr, ptr_size)          wasm2c_shadow_memory_reserve(mem, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_DLMALLOC(mem, ptr, ptr_size)         wasm2c_shadow_memory_dlmalloc(mem, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_DLFREE(mem, ptr)                     wasm2c_shadow_memory_dlfree(mem, ptr)
+#  define WASM2C_SHADOW_MEMORY_MARK_GLOBALS_HEAP_BOUNDARY(mem, ptr) wasm2c_shadow_memory_mark_globals_heap_boundary(mem, ptr)
+#else
+#  define WASM2C_SHADOW_MEMORY_LOAD(mem, func_name, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_STORE(mem, func_name, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_RESERVE(mem, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_DLMALLOC(mem, ptr, ptr_size)
+#  define WASM2C_SHADOW_MEMORY_DLFREE(mem, ptr)
+#  define WASM2C_SHADOW_MEMORY_MARK_GLOBALS_HEAP_BOUNDARY(mem, ptr)
+#endif
+
+#ifdef WASM_USE_GUARD_PAGES
+#  define MEMCHECK(mem, a, t)
+#else
+#  define MEMCHECK(mem, a, t) if (UNLIKELY((a) + sizeof(t) > mem->size)) { (void) TRAP(OOB); }
+#endif
+
+#if defined(WASM_USE_GUARD_PAGES) && UINTPTR_MAX == 0xffffffff
+// on 32-bit platforms we have to mask memory access into range
+#  define MEM_ACCESS_REF(mem, addr) &mem->data[addr & mem->mem_mask]
+#else
+#  define MEM_ACCESS_REF(mem, addr) &mem->data[addr]
+#endif
+
+#if defined(WASM_USING_GLOBAL_HEAP)
+#  undef MEM_ACCESS_REF
+#  define MEM_ACCESS_REF(mem, addr) (char*) addr
+#endif
+
+#ifdef __GNUC__
+#define wasm_asm __asm__
+#else
+#define wasm_asm(X)
+#endif
+
+#if WABT_BIG_ENDIAN
+static inline void load_data(void *dest, const void *src, size_t n) {
+  size_t i = 0;
+  u8 *dest_chars = dest;
+  memcpy(dest, src, n);
+  for (i = 0; i < (n>>1); i++) {
+    u8 cursor = dest_chars[i];
+    dest_chars[i] = dest_chars[n - i - 1];
+    dest_chars[n - i - 1] = cursor;
+  }
+}
+#define LOAD_DATA(m, o, i, s) { load_data(&(m.data[m.size - o - s]), i, s); \
+  WASM2C_SHADOW_MEMORY_RESERVE(&m, m.size - o - s, s);                       \
+  WASM2C_SHADOW_MEMORY_STORE(&m, "GlobalDataLoad", m.size - o - s, s);       \
+}
+
+#define DEFINE_LOAD(name, t1, t2, t3)                                                      \
+  static inline t3 name(wasm_rt_memory_t* mem, u64 addr, const char* func_name) {          \
+    MEMCHECK(mem, addr, t1);                                                               \
+    t1 result;                                                                             \
+    memcpy(&result, MEM_ACCESS_REF(mem, mem->size - addr - sizeof(t1)), sizeof(t1));       \
+    WASM2C_SHADOW_MEMORY_LOAD(mem, func_name, mem->size - addr - sizeof(t1), sizeof(t1));  \
+    wasm_asm("" ::"r"(result));                                                            \
+    return (t3)(t2)result;                                                                 \
+  }
+
+#define DEFINE_STORE(name, t1, t2)                                                            \
+  static inline void name(wasm_rt_memory_t* mem, u64 addr, t2 value, const char* func_name) { \
+    MEMCHECK(mem, addr, t1);                                                                  \
+    t1 wrapped = (t1)value;                                                                   \
+    memcpy(MEM_ACCESS_REF(mem, mem->size - addr - sizeof(t1), &wrapped, sizeof(t1));          \
+    WASM2C_SHADOW_MEMORY_STORE(mem, func_name, mem->size - addr - sizeof(t1)), sizeof(t1));   \
+  }
+#else
+static inline void load_data(void *dest, const void *src, size_t n) {
+  memcpy(dest, src, n);
+}
+#define LOAD_DATA(m, o, i, s) { load_data(&(m.data[o]), i, s); \
+  WASM2C_SHADOW_MEMORY_RESERVE(&m, o, s);                       \
+  WASM2C_SHADOW_MEMORY_STORE(&m, "GlobalDataLoad", o, s);       \
+}
+
+#define DEFINE_LOAD(name, t1, t2, t3)                                               \
+  static inline t3 name(wasm_rt_memory_t* mem, u64 addr, const char* func_name) {   \
+    MEMCHECK(mem, addr, t1);                                                        \
+    t1 result;                                                                      \
+    memcpy(&result, MEM_ACCESS_REF(mem, addr), sizeof(t1));                         \
+    WASM2C_SHADOW_MEMORY_LOAD(mem, func_name, addr, sizeof(t1));                    \
+    wasm_asm("" ::"r"(result));                                                     \
+    return (t3)(t2)result;                                                          \
+  }
+
+#define DEFINE_STORE(name, t1, t2)                                                            \
+  static inline void name(wasm_rt_memory_t* mem, u64 addr, t2 value, const char* func_name) { \
+    MEMCHECK(mem, addr, t1);                                                                  \
+    t1 wrapped = (t1)value;                                                                   \
+    memcpy(MEM_ACCESS_REF(mem, addr), &wrapped, sizeof(t1));                                  \
+    WASM2C_SHADOW_MEMORY_STORE(mem, func_name, addr, sizeof(t1));                             \
+  }
+#endif
+
+DEFINE_LOAD(i32_load, u32, u32, u32);
+DEFINE_LOAD(i64_load, u64, u64, u64);
+DEFINE_LOAD(f32_load, f32, f32, f32);
+DEFINE_LOAD(f64_load, f64, f64, f64);
+DEFINE_LOAD(i32_load8_s, s8, s32, u32);
+DEFINE_LOAD(i64_load8_s, s8, s64, u64);
+DEFINE_LOAD(i32_load8_u, u8, u32, u32);
+DEFINE_LOAD(i64_load8_u, u8, u64, u64);
+DEFINE_LOAD(i32_load16_s, s16, s32, u32);
+DEFINE_LOAD(i64_load16_s, s16, s64, u64);
+DEFINE_LOAD(i32_load16_u, u16, u32, u32);
+DEFINE_LOAD(i64_load16_u, u16, u64, u64);
+DEFINE_LOAD(i64_load32_s, s32, s64, u64);
+DEFINE_LOAD(i64_load32_u, u32, u64, u64);
+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)
+#include <intrin.h>
+
+// 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;                            \
+    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)
+%%sandboxapis
+//test
+
+static u32 add_wasm2c_callback(void* sbx_ptr, u32 func_type_idx, void* func_ptr, wasm_rt_elem_target_class_t func_class) {
+  wasm_rt_table_t* table = get_wasm2c_callback_table(sbx_ptr);
+  for (u32 i = 1; i < table->max_size; i++) {
+    if (i >= table->size) {
+      wasm_rt_expand_table(table);
+    }
+    if (table->data[i].func == 0) {
+      table->data[i] = (wasm_rt_elem_t){ func_class, func_type_idx, (wasm_rt_anyfunc_t) func_ptr };
+      return i;
+    }
+  }
+  (void) TRAP(CALL_INDIRECT_TABLE_EXPANSION);
+}
+
+static void remove_wasm2c_callback(void* sbx_ptr, u32 callback_idx) {
+  wasm_rt_table_t* table = get_wasm2c_callback_table(sbx_ptr);
+  table->data[callback_idx].func = 0;
+}
+
+static u32 lookup_wasm2c_func_index(void* sbx_ptr, u32 param_count, u32 result_count, wasm_rt_type_t* types) {
+  wasm2c_sandbox_t* const sbx = (wasm2c_sandbox_t* const) sbx_ptr;
+  return wasm_rt_register_func_type(&sbx->func_type_structs, &sbx->func_type_count, param_count, result_count, types);
+}
+
+static void* create_wasm2c_sandbox(uint32_t max_wasm_pages) {
+  wasm2c_sandbox_t* const sbx = (wasm2c_sandbox_t* const) calloc(sizeof(wasm2c_sandbox_t), 1);
+  if (!init_memory(sbx, max_wasm_pages)) {
+    free(sbx);
+    return 0;
+  }
+  init_func_types(sbx);
+  init_globals(sbx);
+  init_table(sbx);
+  wasm_rt_init_wasi(&(sbx->wasi_data));
+  init_module_starts();
+  // w2c___wasm_call_ctors(sbx);
+  return sbx;
+}
+
+static void destroy_wasm2c_sandbox(void* aSbx) {
+  wasm2c_sandbox_t* const sbx = (wasm2c_sandbox_t* const) aSbx;
+  cleanup_memory(sbx);
+  cleanup_func_types(sbx);
+  cleanup_table(sbx);
+  wasm_rt_cleanup_wasi(&(sbx->wasi_data));
+  free(sbx);
+}
+
+FUNC_EXPORT wasm2c_sandbox_funcs_t WASM_CURR_ADD_PREFIX(get_wasm2c_sandbox_info)() {
+  wasm2c_sandbox_funcs_t ret;
+  ret.wasm_rt_sys_init = &wasm_rt_sys_init;
+  ret.create_wasm2c_sandbox = &create_wasm2c_sandbox;
+  ret.destroy_wasm2c_sandbox = &destroy_wasm2c_sandbox;
+  ret.lookup_wasm2c_nonfunc_export = &lookup_wasm2c_nonfunc_export;
+  ret.lookup_wasm2c_func_index = &lookup_wasm2c_func_index;
+  ret.add_wasm2c_callback = &add_wasm2c_callback;
+  ret.remove_wasm2c_callback = &remove_wasm2c_callback;
+  return ret;
+}