Re-org platform APIs: move most platform APIs of iwasm to shared-lib (#45)
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wenyongh
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/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "wasm_log.h"
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#include "wasm_platform.h"
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#include "wasm_memory.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <dlfcn.h>
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bool is_little_endian = false;
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bool __is_little_endian()
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{
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union w
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{
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int a;
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char b;
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}c;
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c.a = 1;
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return (c.b == 1);
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}
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int
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wasm_platform_init()
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{
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if (__is_little_endian())
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is_little_endian = true;
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return 0;
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}
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char*
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wasm_read_file_to_buffer(const char *filename, int *ret_size)
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{
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char *buffer;
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int file;
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int file_size, read_size;
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struct stat stat_buf;
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if (!filename || !ret_size) {
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LOG_ERROR("Read file to buffer failed: invalid filename or ret size.\n");
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return NULL;
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}
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if ((file = open(filename, O_RDONLY, 0)) == -1) {
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LOG_ERROR("Read file to buffer failed: open file %s failed.\n",
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filename);
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return NULL;
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}
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if (fstat(file, &stat_buf) != 0) {
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LOG_ERROR("Read file to buffer failed: fstat file %s failed.\n",
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filename);
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close(file);
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return NULL;
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}
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file_size = stat_buf.st_size;
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if (!(buffer = wasm_malloc(file_size))) {
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LOG_ERROR("Read file to buffer failed: alloc memory failed.\n");
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close(file);
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return NULL;
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}
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read_size = read(file, buffer, file_size);
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close(file);
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if (read_size < file_size) {
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LOG_ERROR("Read file to buffer failed: read file content failed.\n");
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wasm_free(buffer);
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return NULL;
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}
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*ret_size = file_size;
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return buffer;
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}
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@ -1,104 +0,0 @@
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/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _WASM_PLATFORM_H
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#define _WASM_PLATFORM_H
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#include "wasm_config.h"
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#include "wasm_types.h"
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#include <inttypes.h>
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#include <stdbool.h>
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typedef uint64_t uint64;
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typedef int64_t int64;
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typedef float float32;
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typedef double float64;
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#ifndef NULL
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# define NULL ((void*) 0)
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#endif
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#define WASM_PLATFORM "Linux"
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#include <stdarg.h>
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#include <ctype.h>
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#include <pthread.h>
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#include <limits.h>
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#include <semaphore.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <math.h>
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/**
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* Return the offset of the given field in the given type.
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*
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* @param Type the type containing the filed
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* @param field the field in the type
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*
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* @return the offset of field in Type
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*/
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#ifndef offsetof
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#define offsetof(Type, field) ((size_t)(&((Type *)0)->field))
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#endif
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typedef pthread_t korp_tid;
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typedef pthread_mutex_t korp_mutex;
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int wasm_platform_init();
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extern bool is_little_endian;
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#include <string.h>
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/* The following operations declared in string.h may be defined as
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macros on Linux, so don't declare them as functions here. */
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/* memset */
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/* memcpy */
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/* memmove */
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/* #include <stdio.h> */
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/* Unit test framework is based on C++, where the declaration of
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snprintf is different. */
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#ifndef __cplusplus
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int snprintf(char *buffer, size_t count, const char *format, ...);
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* #include <math.h> */
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#ifndef __cplusplus
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double sqrt(double x);
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#endif
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#include <stdio.h>
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extern int fopen_s(FILE ** pFile, const char *filename, const char *mode);
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char*
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wasm_read_file_to_buffer(const char *filename, int *ret_size);
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void*
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wasm_dlsym(void *handle, const char *symbol);
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#ifdef __cplusplus
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}
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#endif
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#endif
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