standalone: Switch to wasm-c-api

This commit is contained in:
Remko Tronçon 2022-05-22 21:40:30 +02:00
parent cc284482ea
commit 177c2808b7
2 changed files with 158 additions and 76 deletions

View file

@ -1,7 +1,7 @@
WAMR_DIR=wasm-micro-runtime WAMR_DIR=wasm-micro-runtime
CC=clang CC=clang
CFLAGS=-I$(WAMR_DIR)/core/iwasm/include -DWASM_ENABLE_DEBUG_INTERP CFLAGS=-g -I$(WAMR_DIR)/core/iwasm/include -DWASM_ENABLE_DEBUG_INTERP
LDFLAGS=-L$(WAMR_DIR)/product-mini/platforms/darwin/build -rpath $(WAMR_DIR)/product-mini/platforms/darwin/build LDFLAGS=-g -L$(WAMR_DIR)/product-mini/platforms/darwin/build -rpath $(WAMR_DIR)/product-mini/platforms/darwin/build
LIBS=-liwasm LIBS=-liwasm
BIN2H=../../scripts/bin2h BIN2H=../../scripts/bin2h

View file

@ -1,110 +1,192 @@
#include "waforth_core.h" #include "waforth_core.h"
#include "wasm_export.h" #include "wasm_c_api.h"
#include <stdio.h> #include <stdio.h>
void waf_emit(wasm_exec_env_t exec_env, int c) { #define CORE_TABLE_EXPORT_INDEX 0
printf("%c", c); #define CORE_MEMORY_EXPORT_INDEX 1
#define CORE_INTERPRET_EXPORT_INDEX 6
wasm_memory_t *memory;
wasm_table_t *table;
wasm_store_t *store;
wasm_trap_t *trap_from_string(const char *s) {
wasm_name_t message;
wasm_name_new_from_string_nt(&message, s);
wasm_trap_t *trap = wasm_trap_new(store, &message);
wasm_name_delete(&message);
return trap;
} }
int waf_read(wasm_exec_env_t exec_env, char *addr, size_t len) { wasm_trap_t *emit_cb(const wasm_val_vec_t *args, wasm_val_vec_t *results) {
printf("%c", args->data[0].of.i32);
return NULL;
}
wasm_trap_t *read_cb(const wasm_val_vec_t *args, wasm_val_vec_t *results) {
int n = 0; int n = 0;
char *addr = &wasm_memory_data(memory)[args->data[0].of.i32];
size_t len = args->data[1].of.i32;
while (!(n = getline(&addr, &len, stdin))) { while (!(n = getline(&addr, &len, stdin))) {
} }
return n; results->data[0].kind = WASM_I32;
results->data[0].of.i32 = n;
return NULL;
} }
int waf_key(wasm_exec_env_t exec_env) { wasm_trap_t *key_cb(const wasm_val_vec_t *args, wasm_val_vec_t *results) {
printf("key \n"); // TODO
return 0x20; return NULL;
} }
void waf_call(wasm_exec_env_t exec_env) { wasm_trap_t *load_cb(const wasm_val_vec_t *args, wasm_val_vec_t *results) {
printf("error: call not implemented\n"); wasm_byte_t *addr = &wasm_memory_data(memory)[args->data[0].of.i32];
size_t len = args->data[1].of.i32;
wasm_byte_vec_t data = {.data = addr, .size = len};
wasm_module_t *module = wasm_module_new(store, &data);
if (!module) {
return trap_from_string("error compiling module");
}
wasm_extern_t *externs[] = {wasm_table_as_extern(table), wasm_memory_as_extern(memory)};
wasm_extern_vec_t imports = WASM_ARRAY_VEC(externs);
wasm_instance_t *instance = wasm_instance_new(store, module, &imports, NULL);
if (!instance) {
return trap_from_string("error instantiating module");
}
return NULL;
} }
void waf_load(wasm_exec_env_t exec_env, int offset, int length, int index) { wasm_trap_t *call_cb(void *env, const wasm_val_vec_t *args, wasm_val_vec_t *results) {
printf("load %d %d %d\n", offset, length, index); wasm_name_t message;
wasm_name_new_from_string_nt(&message, "'call' not available in standalone");
wasm_trap_t *trap = wasm_trap_new((wasm_store_t *)env, &message);
wasm_name_delete(&message);
return trap;
} }
static NativeSymbol native_symbols[] = { // void print_frame(wasm_frame_t *frame) {
{"emit", waf_emit, "(i)"}, // printf("> %p @ 0x%zx = %" PRIu32 ".0x%zx\n", wasm_frame_instance(frame), wasm_frame_module_offset(frame), wasm_frame_func_index(frame),
{"read", waf_read, "(*~)i"}, // wasm_frame_func_offset(frame));
{"key", waf_key, "()i"}, // }
{"call", waf_call, "()"},
{"load", waf_load, /*"(*~i)"*/ "(iii)"}, void print_trap(wasm_trap_t *trap) {
}; printf("Printing message...\n");
wasm_name_t message;
wasm_trap_message(trap, &message);
printf("> %s\n", message.data);
// printf("Printing origin...\n");
// wasm_frame_t *frame = wasm_trap_origin(trap);
// if (frame) {
// print_frame(frame);
// wasm_frame_delete(frame);
// } else {
// printf("> Empty origin.\n");
// }
// printf("Printing trace...\n");
// wasm_frame_vec_t trace;
// wasm_trap_trace(trap, &trace);
// if (trace.size > 0) {
// for (size_t i = 0; i < trace.size; ++i) {
// print_frame(trace.data[i]);
// }
// } else {
// printf("> Empty trace.\n");
// }
// wasm_frame_vec_delete(&trace);
wasm_trap_delete(trap);
wasm_name_delete(&message);
}
int main(int argc, char *argv_main[]) { int main(int argc, char *argv_main[]) {
char error_buf[128];
int ret = -1; int ret = -1;
if (!wasm_runtime_init()) { wasm_engine_t *engine = wasm_engine_new();
printf("Init runtime environment failed.\n"); store = wasm_store_new(engine);
goto fail; wasm_byte_vec_t core = {.data = (wasm_byte_t *)waforth_core, .size = sizeof(waforth_core)};
} wasm_module_t *module = wasm_module_new(store, &core);
if (!wasm_runtime_register_natives("shell", native_symbols, sizeof(native_symbols) / sizeof(NativeSymbol))) {
goto fail;
}
wasm_module_t module = wasm_runtime_load(waforth_core, sizeof(waforth_core), error_buf, sizeof(error_buf));
if (!module) { if (!module) {
printf("Load wasm module failed. error: %s\n", error_buf); printf("error compiling\n");
goto fail; return -1;
} }
uint32_t stack_size = 10485760, heap_size = 10485760; wasm_functype_t *emit_ft = wasm_functype_new_1_0(wasm_valtype_new_i32());
wasm_module_inst_t module_inst = wasm_runtime_instantiate(module, stack_size, heap_size, error_buf, sizeof(error_buf)); wasm_func_t *emit_fn = wasm_func_new(store, emit_ft, emit_cb);
if (!module_inst) { wasm_functype_delete(emit_ft);
printf("Instantiate wasm module failed. error: %s\n", error_buf);
goto fail; wasm_functype_t *read_ft = wasm_functype_new_2_1(wasm_valtype_new_i32(), wasm_valtype_new_i32(), wasm_valtype_new_i32());
wasm_func_t *read_fn = wasm_func_new(store, read_ft, read_cb);
wasm_functype_delete(read_ft);
wasm_functype_t *key_ft = wasm_functype_new_1_0(wasm_valtype_new_i32());
wasm_func_t *key_fn = wasm_func_new(store, key_ft, key_cb);
wasm_functype_delete(key_ft);
wasm_functype_t *load_ft = wasm_functype_new_2_0(wasm_valtype_new_i32(), wasm_valtype_new_i32());
wasm_func_t *load_fn = wasm_func_new(store, load_ft, load_cb);
wasm_functype_delete(load_ft);
wasm_functype_t *call_ft = wasm_functype_new_0_0();
wasm_func_t *call_fn = wasm_func_new_with_env(store, call_ft, call_cb, store, NULL);
wasm_functype_delete(call_ft);
wasm_extern_t *externs[] = {wasm_func_as_extern(emit_fn), wasm_func_as_extern(read_fn), wasm_func_as_extern(key_fn), wasm_func_as_extern(load_fn),
wasm_func_as_extern(call_fn)};
wasm_extern_vec_t imports = WASM_ARRAY_VEC(externs);
wasm_instance_t *instance = wasm_instance_new(store, module, &imports, NULL);
if (!instance) {
printf("> Error instantiating module!\n");
return -1;
} }
wasm_exec_env_t exec_env = wasm_runtime_create_exec_env(module_inst, stack_size); wasm_extern_vec_t exports;
if (!exec_env) { wasm_instance_exports(instance, &exports);
printf("Create wasm execution environment failed.\n"); if (exports.size == 0) {
goto fail; printf("> Error accessing exports!\n");
return -1;
} }
wasm_function_inst_t interpret = wasm_runtime_lookup_function(module_inst, "interpret", NULL); memory = wasm_extern_as_memory(exports.data[CORE_MEMORY_EXPORT_INDEX]);
if (!interpret) { if (memory == NULL) {
printf("The interpret wasm function is not found.\n"); printf("> Error accessing export!\n");
goto fail; return -1;
} }
printf("WAForth\n"); table = wasm_extern_as_table(exports.data[CORE_TABLE_EXPORT_INDEX]);
wasm_val_t results[1] = {{.kind = WASM_I32, .of.i32 = 0}}; if (table == NULL) {
while (true) { printf("> Error accessing export!\n");
if (!wasm_runtime_call_wasm_a(exec_env, interpret, 1, results, 0, NULL)) { return -1;
printf("interpret failed. %s\n", wasm_runtime_get_exception(module_inst));
goto fail;
}
} }
/* const wasm_func_t *interpret_fn = wasm_extern_as_func(exports.data[CORE_INTERPRET_EXPORT_INDEX]);
float ret_val; if (interpret_fn == NULL) {
ret_val = results[0].of.f32; printf("> Error accessing export!\n");
printf("Native finished calling wasm function generate_float(), returned a " return -1;
"float value: %ff\n",
ret_val);
*/
ret = 0;
fail:
if (exec_env) {
wasm_runtime_destroy_exec_env(exec_env);
} }
if (module_inst) {
// if (wasm_buffer)
// wasm_runtime_module_free(module_inst, wasm_buffer);
wasm_runtime_deinstantiate(module_inst);
}
if (module) {
wasm_runtime_unload(module);
}
wasm_runtime_destroy();
wasm_val_vec_t args = WASM_EMPTY_VEC;
wasm_val_vec_t results = WASM_EMPTY_VEC;
wasm_trap_t *trap = wasm_func_call(interpret_fn, &args, &results);
if (trap) {
printf("> Error calling function!\n");
print_trap(trap);
return -1;
}
printf("Instantiated\n");
wasm_extern_vec_delete(&exports);
wasm_instance_delete(instance);
wasm_func_delete(call_fn);
wasm_func_delete(load_fn);
wasm_func_delete(key_fn);
wasm_func_delete(read_fn);
wasm_func_delete(emit_fn);
wasm_module_delete(module);
wasm_store_delete(store);
wasm_engine_delete(engine);
printf("Done\n"); printf("Done\n");
return ret; return ret;
} }