Unify product-mini main.c implementation for POSIX compatible system (#675)

Unify product-mini main.c implementation for POSIX compatible system: create a shared main.c under platforms/posix/main.c, and in other POSIX platforms' main.c, just keep a line "#include ../posix/main.c".

Signed-off-by: Huang Qi <[email protected]>

Author: no1wudi

product-mini/platforms/darwin/main.c

@@ -1,319 +1 @@
-/*
- * Copyright (C) 2019 Intel Corporation.  All rights reserved.
- * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
- */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <stdlib.h>
-#include <string.h>
-#include "bh_platform.h"
-#include "bh_assert.h"
-#include "bh_log.h"
-#include "bh_read_file.h"
-#include "wasm_export.h"
-
-static int app_argc;
-static char **app_argv;
-
-static int print_help()
-{
-    printf("Usage: iwasm [-options] wasm_file [args...]\n");
-    printf("options:\n");
-    printf("  -f|--function name     Specify function name to run in module\n"
-           "                         rather than main\n");
-#if WASM_ENABLE_LOG != 0
-    printf("  -v=n                   Set log verbose level (0 to 5, default is 2),\n"
-           "                         larger level with more log\n");
-#endif
-    printf("  --stack-size=n         Set maximum stack size in bytes, default is 16 KB\n");
-    printf("  --heap-size=n          Set maximum heap size in bytes, default is 16 KB\n");
-    printf("  --repl                 Start a very simple REPL (read-eval-print-loop) mode\n"
-           "                         that runs commands in the form of `FUNC ARG...`\n");
-#if WASM_ENABLE_LIBC_WASI != 0
-    printf("  --env=<env>            Pass wasi environment variables with \"key=value\"\n");
-    printf("                         to the program, for example:\n");
-    printf("                           --env=\"key1=value1\" --env=\"key2=value2\"\n");
-    printf("  --dir=<dir>            Grant wasi access to the given host directories\n");
-    printf("                         to the program, for example:\n");
-    printf("                           --dir=<dir1> --dir=<dir2>\n");
-#endif
-
-    return 1;
-}
-
-static void*
-app_instance_main(wasm_module_inst_t module_inst)
-{
-    const char *exception;
-
-    wasm_application_execute_main(module_inst, app_argc, app_argv);
-    if ((exception = wasm_runtime_get_exception(module_inst)))
-        printf("%s\n", exception);
-    return NULL;
-}
-
-static void*
-app_instance_func(wasm_module_inst_t module_inst, const char *func_name)
-{
-    wasm_application_execute_func(module_inst, func_name, app_argc - 1,
-                                  app_argv + 1);
-    /* The result of wasm function or exception info was output inside
-       wasm_application_execute_func(), here we don't output them again. */
-    return NULL;
-}
-
-/**
- * Split a space separated strings into an array of strings
- * Returns NULL on failure
- * Memory must be freed by caller
- * Based on: http://stackoverflow.com/a/11198630/471795
- */
-static char **
-split_string(char *str, int *count)
-{
-    char **res = NULL;
-    char *p;
-    int idx = 0;
-
-    /* split string and append tokens to 'res' */
-    do {
-        p = strtok(str, " ");
-        str = NULL;
-        res = (char**) realloc(res, sizeof(char*) * (uint32)(idx + 1));
-        if (res == NULL) {
-            return NULL;
-        }
-        res[idx++] = p;
-    } while (p);
-
-    if (count) {
-        *count = idx - 1;
-    }
-    return res;
-}
-
-static void*
-app_instance_repl(wasm_module_inst_t module_inst)
-{
-    char *cmd = NULL;
-    size_t len = 0;
-    ssize_t n;
-
-    while ((printf("webassembly> "), n = getline(&cmd, &len, stdin)) != -1) {
-        bh_assert(n > 0);
-        if (cmd[n - 1] == '\n') {
-            if (n == 1)
-                continue;
-            else
-                cmd[n - 1] = '\0';
-        }
-        app_argv = split_string(cmd, &app_argc);
-        if (app_argv == NULL) {
-            LOG_ERROR("Wasm prepare param failed: split string failed.\n");
-            break;
-        }
-        if (app_argc != 0) {
-            wasm_application_execute_func(module_inst, app_argv[0],
-                                          app_argc - 1, app_argv + 1);
-        }
-        free(app_argv);
-    }
-    free(cmd);
-    return NULL;
-}
-
-#if WASM_ENABLE_LIBC_WASI != 0
-static bool
-validate_env_str(char *env)
-{
-    char *p = env;
-    int key_len = 0;
-
-    while (*p != '\0' && *p != '=') {
-        key_len++;
-        p++;
-    }
-
-    if (*p != '=' || key_len == 0)
-        return false;
-
-    return true;
-}
-#endif
-
-#define USE_GLOBAL_HEAP_BUF 0
-
-#if USE_GLOBAL_HEAP_BUF != 0
-static char global_heap_buf[10 * 1024 * 1024] = { 0 };
-#endif
-
-int main(int argc, char *argv[])
-{
-    char *wasm_file = NULL;
-    const char *func_name = NULL;
-    uint8 *wasm_file_buf = NULL;
-    uint32 wasm_file_size;
-    uint32 stack_size = 16 * 1024, heap_size = 16 * 1024;
-    wasm_module_t wasm_module = NULL;
-    wasm_module_inst_t wasm_module_inst = NULL;
-    RuntimeInitArgs init_args;
-    char error_buf[128] = { 0 };
-#if WASM_ENABLE_LOG != 0
-    int log_verbose_level = 2;
-#endif
-    bool is_repl_mode = false;
-#if WASM_ENABLE_LIBC_WASI != 0
-    const char *dir_list[8] = { NULL };
-    uint32 dir_list_size = 0;
-    const char *env_list[8] = { NULL };
-    uint32 env_list_size = 0;
-#endif
-
-    /* Process options.  */
-    for (argc--, argv++; argc > 0 && argv[0][0] == '-'; argc--, argv++) {
-        if (!strcmp(argv[0], "-f") || !strcmp(argv[0], "--function")) {
-            argc--, argv++;
-            if (argc < 2) {
-                print_help();
-                return 0;
-            }
-            func_name = argv[0];
-        }
-#if WASM_ENABLE_LOG != 0
-        else if (!strncmp(argv[0], "-v=", 3)) {
-            log_verbose_level = atoi(argv[0] + 3);
-            if (log_verbose_level < 0 || log_verbose_level > 5)
-                return print_help();
-        }
-#endif
-        else if (!strcmp(argv[0], "--repl"))
-            is_repl_mode = true;
-        else if (!strncmp(argv[0], "--stack-size=", 13)) {
-            if (argv[0][13] == '\0')
-                return print_help();
-            stack_size = atoi(argv[0] + 13);
-        }
-        else if (!strncmp(argv[0], "--heap-size=", 12)) {
-            if (argv[0][12] == '\0')
-                return print_help();
-            heap_size = atoi(argv[0] + 12);
-        }
-#if WASM_ENABLE_LIBC_WASI != 0
-        else if (!strncmp(argv[0], "--dir=", 6)) {
-            if (argv[0][6] == '\0')
-                return print_help();
-            if (dir_list_size >= sizeof(dir_list) / sizeof(char*)) {
-                printf("Only allow max dir number %d\n",
-                       (int)(sizeof(dir_list) / sizeof(char*)));
-                return -1;
-            }
-            dir_list[dir_list_size++] = argv[0] + 6;
-        }
-        else if (!strncmp(argv[0], "--env=", 6)) {
-            char *tmp_env;
-
-            if (argv[0][6] == '\0')
-                return print_help();
-            if (env_list_size >= sizeof(env_list) / sizeof(char*)) {
-                printf("Only allow max env number %d\n",
-                       (int)(sizeof(env_list) / sizeof(char*)));
-                return -1;
-            }
-            tmp_env = argv[0] + 6;
-            if (validate_env_str(tmp_env))
-                env_list[env_list_size++] = tmp_env;
-            else {
-                printf("Wasm parse env string failed: expect \"key=value\", got \"%s\"\n",
-                       tmp_env);
-                return print_help();
-            }
-        }
-#endif
-        else
-            return print_help();
-    }
-
-    if (argc == 0)
-        return print_help();
-
-    wasm_file = argv[0];
-    app_argc = argc;
-    app_argv = argv;
-
-    memset(&init_args, 0, sizeof(RuntimeInitArgs));
-
-#if USE_GLOBAL_HEAP_BUF != 0
-    init_args.mem_alloc_type = Alloc_With_Pool;
-    init_args.mem_alloc_option.pool.heap_buf = global_heap_buf;
-    init_args.mem_alloc_option.pool.heap_size = sizeof(global_heap_buf);
-#else
-    init_args.mem_alloc_type = Alloc_With_Allocator;
-    init_args.mem_alloc_option.allocator.malloc_func = malloc;
-    init_args.mem_alloc_option.allocator.realloc_func = realloc;
-    init_args.mem_alloc_option.allocator.free_func = free;
-#endif
-
-    /* initialize runtime environment */
-    if (!wasm_runtime_full_init(&init_args)) {
-        printf("Init runtime environment failed.\n");
-        return -1;
-    }
-
-    bh_log_set_verbose_level(log_verbose_level);
-
-    /* load WASM byte buffer from WASM bin file */
-    if (!(wasm_file_buf = (uint8*) bh_read_file_to_buffer(wasm_file,
-                                                          &wasm_file_size)))
-        goto fail1;
-
-    /* load WASM module */
-    if (!(wasm_module = wasm_runtime_load(wasm_file_buf, wasm_file_size,
-                                          error_buf, sizeof(error_buf)))) {
-        printf("%s\n", error_buf);
-        goto fail2;
-    }
-
-#if WASM_ENABLE_LIBC_WASI != 0
-    wasm_runtime_set_wasi_args(wasm_module,
-                               dir_list, dir_list_size,
-                               NULL, 0,
-                               env_list, env_list_size,
-                               argv, argc);
-#endif
-
-    /* instantiate the module */
-    if (!(wasm_module_inst = wasm_runtime_instantiate(wasm_module,
-                                                      stack_size,
-                                                      heap_size,
-                                                      error_buf,
-                                                      sizeof(error_buf)))) {
-        printf("%s\n", error_buf);
-        goto fail3;
-    }
-
-    if (is_repl_mode)
-        app_instance_repl(wasm_module_inst);
-    else if (func_name)
-        app_instance_func(wasm_module_inst, func_name);
-    else
-        app_instance_main(wasm_module_inst);
-
-    /* destroy the module instance */
-    wasm_runtime_deinstantiate(wasm_module_inst);
-
-fail3:
-    /* unload the module */
-    wasm_runtime_unload(wasm_module);
-
-fail2:
-    /* free the file buffer */
-    wasm_runtime_free(wasm_file_buf);
-
-fail1:
-    /* destroy runtime environment */
-    wasm_runtime_destroy();
-    return 0;
-}
-
+#include "../posix/main.c"