64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
#include "wasm3/source/wasm3.h"
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#include "wasm3/source/m3_env.h"
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#include <stdio.h>
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#include <malloc.h>
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void* loadFile(size_t* sizeOut, const char* filename) {
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FILE* file = fopen(filename, "rb");
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assert(file != NULL);
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fseek(file, 0, SEEK_END);
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size_t size = (size_t)ftell(file);
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rewind(file);
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void* buffer = malloc(size);
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assert(fread(buffer, size, 1, file) == 1);
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fclose(file);
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*sizeOut = size;
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return buffer;
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}
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void verifyM3(M3Result result) {
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if(result != NULL) {
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fprintf(stderr, "Error: %s\n", result);
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exit(1);
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}
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}
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int main() {
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IM3Environment env = m3_NewEnvironment();
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IM3Runtime runtime = m3_NewRuntime(env, 16384, NULL);
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runtime->memory.maxPages = 4;
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verifyM3(ResizeMemory(runtime, 4));
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uint8_t* memory = m3_GetMemory(runtime, NULL, 0);
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assert(memory != NULL);
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size_t loaderSize;
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void* loaderWasm = loadFile(&loaderSize, "loader.wasm");
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IM3Module loaderMod;
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verifyM3(m3_ParseModule(env, &loaderMod, loaderWasm, loaderSize));
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loaderMod->memoryImported = true;
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verifyM3(m3_LoadModule(runtime, loaderMod));
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size_t platformUw8Size;
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void* platformUw8 = loadFile(&platformUw8Size, "platform.uw8");
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memcpy(memory, platformUw8, platformUw8Size);
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printf("platform.uw8 size: %u\n", (unsigned int)platformUw8Size);
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IM3Function loadUw8;
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verifyM3(m3_FindFunction(&loadUw8, runtime, "load_uw8"));
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verifyM3(m3_CallV(loadUw8, (uint32_t)platformUw8Size));
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uint32_t platformSize;
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verifyM3(m3_GetResultsV(loadUw8, &platformSize));
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printf("platform size: %u\n", platformSize);
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printf("First byte: %u\n", memory[0]);
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IM3Module platformMod;
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verifyM3(m3_ParseModule(env, &platformMod, memory, platformSize));
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platformMod->memoryImported = true;
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verifyM3(m3_LoadModule(runtime, platformMod));
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return 0;
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}
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