asm_wasm.c

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// SPDX-FileCopyrightText: 2017-2018 pancake <pancake@nopcode.org>
// SPDX-FileCopyrightText: 2017-2018 cgvwzq
// SPDX-License-Identifier: LGPL-3.0-only
 
// http://webassembly.org/docs/binary-encoding/#module-structure
 
#include <stdio.h>
#include <string.h>
#include <rz_types.h>
#include <rz_lib.h>
#include <rz_asm.h>
 
#include "../arch/wasm/wasm.h"
 
static int disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
    WasmOp wop = { { 0 } };
    int ret = wasm_dis(&wop, buf, len);
    rz_asm_op_set_asm(op, wop.txt);
    free(wop.txt);
    op->size = ret;
    return op->size;
}
 
static int assemble(RzAsm *a, RzAsmOp *op, const char *buf) {
    ut8 *opbuf = (ut8 *)rz_strbuf_get(&op->buf);
    op->size = wasm_asm(buf, opbuf, 32); // XXX hardcoded opsize
    return op->size;
}
 
RzAsmPlugin rz_asm_plugin_wasm = {
    .name = "wasm",
    .author = "cgvwzq",
    .version = "0.1.0",
    .arch = "wasm",
    .license = "MIT",
    .bits = 32,
    .endian = RZ_SYS_ENDIAN_LITTLE,
    .desc = "WebAssembly",
    .disassemble = &disassemble,
    .assemble = &assemble
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_ASM,
    .data = &rz_asm_plugin_wasm,
    .version = RZ_VERSION
};
#endif