107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
// SPDX-FileCopyrightText: 2013-2018 pancake <pancake@nopcode.org>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <rz_asm.h>
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#include <rz_lib.h>
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#include <capstone/capstone.h>
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RZ_IPI int mips_assemble(const char *str, ut64 pc, ut8 *out);
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static csh cd = 0;
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#include "cs_mnemonics.c"
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static int disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
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cs_insn *insn;
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int mode, n, ret = -1;
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mode = (a->big_endian) ? CS_MODE_BIG_ENDIAN : CS_MODE_LITTLE_ENDIAN;
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if (!op) {
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return 0;
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}
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if (a->cpu && *a->cpu) {
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if (!strcmp(a->cpu, "micro")) {
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mode |= CS_MODE_MICRO;
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} else if (!strcmp(a->cpu, "r6")) {
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mode |= CS_MODE_MIPS32R6;
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} else if (!strcmp(a->cpu, "v3")) {
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mode |= CS_MODE_MIPS3;
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} else if (!strcmp(a->cpu, "v2")) {
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#if CS_API_MAJOR > 3
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mode |= CS_MODE_MIPS2;
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#endif
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}
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}
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mode |= (a->bits == 64) ? CS_MODE_MIPS64 : CS_MODE_MIPS32;
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memset(op, 0, sizeof(RzAsmOp));
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op->size = 4;
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if (cd != 0) {
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cs_close(&cd);
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}
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ret = cs_open(CS_ARCH_MIPS, mode, &cd);
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if (ret) {
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goto fin;
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}
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if (a->syntax == RZ_ASM_SYNTAX_REGNUM) {
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cs_option(cd, CS_OPT_SYNTAX, CS_OPT_SYNTAX_NOREGNAME);
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} else {
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cs_option(cd, CS_OPT_SYNTAX, CS_OPT_SYNTAX_DEFAULT);
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}
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cs_option(cd, CS_OPT_DETAIL, CS_OPT_OFF);
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n = cs_disasm(cd, (ut8 *)buf, len, a->pc, 1, &insn);
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if (n < 1) {
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rz_asm_op_set_asm(op, "invalid");
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op->size = 4;
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goto beach;
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}
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if (insn->size < 1) {
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goto beach;
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}
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op->size = insn->size;
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char *str = rz_str_newf("%s%s%s", insn->mnemonic, insn->op_str[0] ? " " : "", insn->op_str);
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if (str) {
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rz_str_replace_char(str, '$', 0);
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// remove the '$'<registername> in the string
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rz_asm_op_set_asm(op, str);
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free(str);
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}
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cs_free(insn, n);
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beach:
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// cs_close (&cd);
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fin:
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return op->size;
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}
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static int assemble(RzAsm *a, RzAsmOp *op, const char *str) {
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ut8 *opbuf = (ut8 *)rz_strbuf_get(&op->buf);
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int ret = mips_assemble(str, a->pc, opbuf);
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if (a->big_endian) {
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ut8 *buf = opbuf;
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ut8 tmp = buf[0];
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buf[0] = buf[3];
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buf[3] = tmp;
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tmp = buf[1];
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buf[1] = buf[2];
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buf[2] = tmp;
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}
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return ret;
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}
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RzAsmPlugin rz_asm_plugin_mips_cs = {
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.name = "mips",
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.desc = "Capstone MIPS disassembler",
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.license = "BSD",
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.arch = "mips",
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.cpus = "mips32/64,micro,r6,v3,v2",
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.bits = 16 | 32 | 64,
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.endian = RZ_SYS_ENDIAN_LITTLE | RZ_SYS_ENDIAN_BIG,
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.disassemble = &disassemble,
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.mnemonics = mnemonics,
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.assemble = &assemble
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};
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#ifndef RZ_PLUGIN_INCORE
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RZ_API RzLibStruct rizin_plugin = {
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.type = RZ_LIB_TYPE_ASM,
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.data = &rz_asm_plugin_mips_cs,
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.version = RZ_VERSION
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};
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#endif
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