85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
// SPDX-FileCopyrightText: 2016-2018 pancake <pancake@nopcode.org>
|
|
// SPDX-License-Identifier: LGPL-3.0-only
|
|
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
|
|
#include <rz_types.h>
|
|
#include <rz_lib.h>
|
|
#include <rz_util.h>
|
|
#include <rz_asm.h>
|
|
|
|
#include "disas-asm.h"
|
|
|
|
#define INSN_BUFFER_SIZE 4
|
|
|
|
static ut64 offset = 0;
|
|
static RzStrBuf *buf_global = NULL;
|
|
static ut8 bytes[INSN_BUFFER_SIZE];
|
|
|
|
static int xtensa_buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, ut32 length, struct disassemble_info *info) {
|
|
if (length > INSN_BUFFER_SIZE) {
|
|
length = INSN_BUFFER_SIZE;
|
|
}
|
|
memcpy(myaddr, bytes, length);
|
|
return 0;
|
|
}
|
|
|
|
static int symbol_at_address(bfd_vma addr, struct disassemble_info *info) {
|
|
return 0;
|
|
}
|
|
|
|
static void memory_error_func(int status, bfd_vma memaddr, struct disassemble_info *info) {
|
|
//--
|
|
}
|
|
|
|
DECLARE_GENERIC_PRINT_ADDRESS_FUNC()
|
|
DECLARE_GENERIC_FPRINTF_FUNC()
|
|
|
|
static int disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
|
|
struct disassemble_info disasm_obj;
|
|
buf_global = &op->buf_asm;
|
|
offset = a->pc;
|
|
if (len > INSN_BUFFER_SIZE) {
|
|
len = INSN_BUFFER_SIZE;
|
|
}
|
|
memcpy(bytes, buf, len); // TODO handle thumb
|
|
|
|
/* prepare disassembler */
|
|
memset(&disasm_obj, '\0', sizeof(struct disassemble_info));
|
|
disasm_obj.disassembler_options = (a->bits == 64) ? "64" : "";
|
|
disasm_obj.buffer = bytes;
|
|
disasm_obj.buffer_length = len;
|
|
disasm_obj.read_memory_func = &xtensa_buffer_read_memory;
|
|
disasm_obj.symbol_at_address_func = &symbol_at_address;
|
|
disasm_obj.memory_error_func = &memory_error_func;
|
|
disasm_obj.print_address_func = &generic_print_address_func;
|
|
disasm_obj.endian = !a->big_endian;
|
|
disasm_obj.fprintf_func = &generic_fprintf_func;
|
|
disasm_obj.stream = stdout;
|
|
|
|
op->size = print_insn_xtensa((bfd_vma)offset, &disasm_obj);
|
|
if (op->size == -1) {
|
|
rz_asm_op_set_asm(op, "(data)");
|
|
}
|
|
return op->size;
|
|
}
|
|
|
|
RzAsmPlugin rz_asm_plugin_xtensa = {
|
|
.name = "xtensa",
|
|
.arch = "xtensa",
|
|
.license = "GPL3",
|
|
.bits = 32,
|
|
.endian = RZ_SYS_ENDIAN_LITTLE | RZ_SYS_ENDIAN_BIG,
|
|
.desc = "XTensa CPU",
|
|
.disassemble = &disassemble
|
|
};
|
|
|
|
#ifndef RZ_PLUGIN_INCORE
|
|
RZ_API RzLibStruct rizin_plugin = {
|
|
.type = RZ_LIB_TYPE_ASM,
|
|
.data = &rz_asm_plugin_xtensa,
|
|
.version = RZ_VERSION
|
|
};
|
|
#endif
|