96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
// SPDX-FileCopyrightText: 2015 pancake <pancake@nopcode.org>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <rz_types.h>
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#include <rz_lib.h>
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#include <rz_util.h>
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#include <rz_asm.h>
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#include "disas-asm.h"
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static unsigned long Offset = 0;
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static RzStrBuf *buf_global = NULL;
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static unsigned char bytes[4];
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static int hppa_buffer_read_memory(bfd_vma memaddr, bfd_byte *myaddr, ut32 length, struct disassemble_info *info) {
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#if 0 // XXX rewrite needed
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if (length == 4) {
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// swap
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myaddr[0] = bytes[3];
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myaddr[1] = bytes[2];
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myaddr[2] = bytes[1];
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myaddr[3] = bytes[0];
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return 0;
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}
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#endif
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int delta = (memaddr - Offset);
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if (delta < 0) {
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return -1; // disable backward reads
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}
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if ((delta + length) > 4) {
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return -1;
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}
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memcpy(myaddr, bytes + delta, length);
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return 0;
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}
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static int symbol_at_address(bfd_vma addr, struct disassemble_info *info) {
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return 0;
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}
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static void memory_error_func(int status, bfd_vma memaddr, struct disassemble_info *info) {
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//--
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}
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DECLARE_GENERIC_PRINT_ADDRESS_FUNC()
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DECLARE_GENERIC_FPRINTF_FUNC()
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static int disassemble(RzAsm *a, RzAsmOp *op, const ut8 *buf, int len) {
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struct disassemble_info disasm_obj;
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if (len < 4) {
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return -1;
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}
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buf_global = &op->buf_asm;
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Offset = a->pc;
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memcpy(bytes, buf, 4); // TODO handle thumb
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/* prepare disassembler */
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memset(&disasm_obj, '\0', sizeof(struct disassemble_info));
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disasm_obj.disassembler_options = (a->bits == 64) ? "64" : "";
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disasm_obj.buffer = bytes;
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disasm_obj.read_memory_func = &hppa_buffer_read_memory;
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disasm_obj.symbol_at_address_func = &symbol_at_address;
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disasm_obj.memory_error_func = &memory_error_func;
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disasm_obj.print_address_func = &generic_print_address_func;
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disasm_obj.endian = BFD_ENDIAN_BIG;
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disasm_obj.fprintf_func = &generic_fprintf_func;
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disasm_obj.stream = stdout;
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op->size = print_insn_hppa((bfd_vma)Offset, &disasm_obj);
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if (op->size == -1) {
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rz_strbuf_set(&op->buf_asm, "(data)");
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}
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return op->size;
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}
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RzAsmPlugin rz_asm_plugin_hppa_gnu = {
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.name = "hppa",
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.arch = "hppa",
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.license = "GPL3",
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.bits = 32,
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.endian = RZ_SYS_ENDIAN_BIG,
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.desc = "HP PA-RISC",
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.disassemble = &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_hppa_gnu,
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.version = RZ_VERSION
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};
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#endif
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