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/*
* Copyright 2016 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "wasm-allocator.h"
#include "wasm-common.h"
#include "wasm-option-parser.h"
#include "wasm-stream.h"
#include "wasm-writer.h"
#include "wasm-binary-reader.h"
#include "wasm-binary-reader-objdump.h"
#define PROGRAM_NAME "wasmdump"
enum {
FLAG_HEADERS,
FLAG_RAW,
FLAG_DISASSEMBLE,
FLAG_VERBOSE,
FLAG_DEBUG,
FLAG_HELP,
NUM_FLAGS
};
static const char s_description[] =
" Print information about the contents of a wasm binary file.\n"
"\n"
"examples:\n"
" $ wasmdump test.wasm\n";
static WasmOption s_options[] = {
{FLAG_HEADERS, 'h', "headers", NULL, WASM_OPTION_NO_ARGUMENT,
"print headers"},
{FLAG_RAW, 'r', "raw", NULL, WASM_OPTION_NO_ARGUMENT,
"print raw section contents"},
{FLAG_DISASSEMBLE, 'd', "disassemble", NULL, WASM_OPTION_NO_ARGUMENT,
"disassemble function bodies"},
{FLAG_DEBUG, '\0', "debug", NULL, WASM_OPTION_NO_ARGUMENT,
"disassemble function bodies"},
{FLAG_VERBOSE, 'v', "verbose", NULL, WASM_OPTION_NO_ARGUMENT,
"Verbose output"},
{FLAG_HELP, 'h', "help", NULL, WASM_OPTION_NO_ARGUMENT,
"print this help message"},
};
WASM_STATIC_ASSERT(NUM_FLAGS == WASM_ARRAY_SIZE(s_options));
static const char* s_infile;
static WasmObjdumpOptions s_objdump_options;
static void on_argument(struct WasmOptionParser* parser, const char* argument) {
s_infile = argument;
}
static void on_option(struct WasmOptionParser* parser,
struct WasmOption* option,
const char* argument) {
switch (option->id) {
case FLAG_HEADERS:
s_objdump_options.headers = WASM_TRUE;
break;
case FLAG_RAW:
s_objdump_options.raw = WASM_TRUE;
break;
case FLAG_DEBUG:
s_objdump_options.debug = WASM_TRUE;
case FLAG_DISASSEMBLE:
s_objdump_options.disassemble = WASM_TRUE;
break;
case FLAG_VERBOSE:
s_objdump_options.verbose = WASM_TRUE;
break;
case FLAG_HELP:
wasm_print_help(parser, PROGRAM_NAME);
exit(0);
break;
}
}
static void on_option_error(struct WasmOptionParser* parser,
const char* message) {
WASM_FATAL("%s\n", message);
}
static void parse_options(int argc, char** argv) {
WasmOptionParser parser;
WASM_ZERO_MEMORY(parser);
parser.description = s_description;
parser.options = s_options;
parser.num_options = WASM_ARRAY_SIZE(s_options);
parser.on_option = on_option;
parser.on_argument = on_argument;
parser.on_error = on_option_error;
wasm_parse_options(&parser, argc, argv);
if (!s_infile) {
wasm_print_help(&parser, PROGRAM_NAME);
WASM_FATAL("No filename given.\n");
}
}
int main(int argc, char** argv) {
wasm_init_stdio();
parse_options(argc, argv);
WasmAllocator* allocator = &g_wasm_libc_allocator;
void* data;
size_t size;
WasmResult result = wasm_read_file(allocator, s_infile, &data, &size);
if (WASM_FAILED(result))
return result;
result = wasm_read_binary_objdump(allocator, data, size, &s_objdump_options);
wasm_free(allocator, data);
return result;
}
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