144 lines
3.3 KiB
C
144 lines
3.3 KiB
C
// SPDX-FileCopyrightText: 2014 Ilya V. Matveychikov <i.matveychikov@milabs.ru>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <stdio.h>
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#include <rz_types.h>
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#include <rz_lib.h>
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#include <rz_asm.h>
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#include <capstone/capstone.h>
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#ifdef CAPSTONE_TMS320C64X_H
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#define CAPSTONE_HAS_TMS320C64X 1
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// #include "cs_mnemonics.c"
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#else
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#define CAPSTONE_HAS_TMS320C64X 0
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#warning Cannot find capstone-tms320c64x support
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#endif
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#include "../arch/tms320/tms320_dasm.h"
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typedef struct tms_cs_context_t {
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#if CAPSTONE_HAS_TMS320C64X
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csh cd;
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#endif
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tms320_dasm_t engine;
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} TmsContext;
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#if CAPSTONE_HAS_TMS320C64X
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static int tms320c64x_disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
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TmsContext *ctx = (TmsContext *)a->plugin_data;
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cs_insn *insn;
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int n = -1, ret = -1;
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if (op) {
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memset(op, 0, sizeof(RzAsmOp));
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op->size = 4;
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}
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if (ctx->cd != 0) {
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cs_close(&ctx->cd);
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ctx->cd = 0;
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}
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if (!ctx->cd) {
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ret = cs_open(CS_ARCH_TMS320C64X, 0, &ctx->cd);
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if (ret) {
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goto fin;
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}
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cs_option(ctx->cd, CS_OPT_DETAIL, CS_OPT_OFF);
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}
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if (!op) {
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return 0;
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}
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n = cs_disasm(ctx->cd, 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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ret = -1;
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goto fin;
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} else {
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ret = 4;
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}
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if (insn->size < 1) {
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goto fin;
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}
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op->size = insn->size;
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rz_asm_op_setf_asm(op, "%s%s%s", insn->mnemonic, insn->op_str[0] ? " " : "", insn->op_str);
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char *str = rz_asm_op_get_asm(op);
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if (str) {
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rz_str_replace_char(str, '%', 0);
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rz_str_case(str, false);
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}
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cs_free(insn, n);
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fin:
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return ret;
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}
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#endif
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static int tms320_disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
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TmsContext *ctx = (TmsContext *)a->plugin_data;
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if (a->cpu && rz_str_casecmp(a->cpu, "c54x") == 0) {
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tms320_f_set_cpu(&ctx->engine, TMS320_F_CPU_C54X);
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} else if (a->cpu && rz_str_casecmp(a->cpu, "c55x+") == 0) {
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tms320_f_set_cpu(&ctx->engine, TMS320_F_CPU_C55X_PLUS);
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} else if (a->cpu && rz_str_casecmp(a->cpu, "c55x") == 0) {
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tms320_f_set_cpu(&ctx->engine, TMS320_F_CPU_C55X);
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} else {
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#if CAPSTONE_HAS_TMS320C64X
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if (a->cpu && !rz_str_casecmp(a->cpu, "c64x")) {
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return tms320c64x_disassemble(a, op, buf, len);
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}
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#endif
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rz_asm_op_set_asm(op, "unknown asm.cpu");
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return op->size = -1;
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}
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op->size = tms320_dasm(&ctx->engine, buf, len);
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rz_asm_op_set_asm(op, ctx->engine.syntax);
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return op->size;
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}
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static bool tms320_init(void **user) {
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TmsContext *ctx = RZ_NEW0(TmsContext);
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if (!ctx) {
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return false;
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}
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tms320_dasm_init(&ctx->engine);
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*user = ctx;
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return true;
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}
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static bool tms320_fini(void *user) {
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rz_return_val_if_fail(user, false);
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TmsContext *ctx = (TmsContext *)user;
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#if CAPSTONE_HAS_TMS320C64X
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cs_close(&ctx->cd);
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#endif
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tms320_dasm_fini(&ctx->engine);
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free(ctx);
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return true;
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}
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RzAsmPlugin rz_asm_plugin_tms320 = {
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.name = "tms320",
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.arch = "tms320",
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#if CAPSTONE_HAS_TMS320C64X
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.cpus = "c54x,c55x,c55x+,c64x",
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.desc = "TMS320 DSP family (c54x,c55x,c55x+,c64x)",
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#else
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.cpus = "c54x,c55x,c55x+",
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.desc = "TMS320 DSP family (c54x,c55x,c55x+)",
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#endif
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.license = "LGPLv3",
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.bits = 32,
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.endian = RZ_SYS_ENDIAN_LITTLE | RZ_SYS_ENDIAN_BIG,
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.init = tms320_init,
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.fini = tms320_fini,
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.disassemble = &tms320_disassemble,
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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_tms320,
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.version = RZ_VERSION
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};
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#endif
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