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104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/* radare - LGPL - Copyright 2010-2011 eloi<limited-entropy.com> */
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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 <r_types.h>
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#include <r_lib.h>
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#include <r_util.h>
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#include <r_asm.h>
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#include "dis-asm.h"
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static unsigned long Offset = 0;
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static char *buf_global = NULL;
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static unsigned char bytes[4];
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static int sh_buffer_read_memory (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length, struct disassemble_info *info) {
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//this is obviously wrong. but how can we read arbitrary data @ memaddr from here?
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memcpy (myaddr, bytes, length);
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return 0;
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}
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int print_insn_shl (bfd_vma memaddr, struct disassemble_info *info);
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int print_insn_shb (bfd_vma memaddr, struct disassemble_info *info);
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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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static void print_address(bfd_vma address, struct disassemble_info *info) {
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char tmp[32];
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if (!buf_global)
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return;
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sprintf (tmp, "0x%08"PFMT64x"", (ut64)address);
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strcat (buf_global, tmp);
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}
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static int buf_fprintf(void *stream, const char *format, ...) {
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va_list ap;
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char *tmp;
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int ret;
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if (!buf_global)
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return 0;
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tmp = malloc (strlen (format)+strlen (buf_global)+2);
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if (!tmp)
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return 0;
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va_start (ap, format);
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sprintf (tmp, "%s%s", buf_global, format);
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ret = vsprintf (buf_global, tmp, ap);
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va_end (ap);
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free (tmp);
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return ret;
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}
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static int disassemble(RAsm *a, RAsmOp *op, const ut8 *buf, int len) {
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static struct disassemble_info disasm_obj;
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if (len<2) return -1;
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buf_global = op->buf_asm;
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Offset = a->pc;
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memcpy (bytes, buf, 2);
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/* prepare disassembler */
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memset (&disasm_obj,'\0', sizeof (struct disassemble_info));
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disasm_obj.buffer = bytes;
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disasm_obj.read_memory_func = &sh_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 = &print_address;
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disasm_obj.endian = !a->big_endian;
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disasm_obj.fprintf_func = &buf_fprintf;
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disasm_obj.stream = stdout;
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op->buf_asm[0] = '\0';
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if (disasm_obj.endian == BFD_ENDIAN_BIG)
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op->size = print_insn_shb ((bfd_vma)Offset, &disasm_obj);
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else
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op->size = print_insn_shl ((bfd_vma)Offset, &disasm_obj);
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if (op->size == -1)
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strncpy (op->buf_asm, " (data)", R_ASM_BUFSIZE);
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return op->size;
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}
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RAsmPlugin r_asm_plugin_sh = {
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.name = "sh",
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.arch = "sh",
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.license = "GPL3",
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.bits = 32,
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.endian = R_SYS_ENDIAN_LITTLE | R_SYS_ENDIAN_BIG,
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.desc = "SuperH-4 CPU",
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.disassemble = &disassemble
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};
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#ifndef CORELIB
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struct r_lib_struct_t radare_plugin = {
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.type = R_LIB_TYPE_ASM,
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.data = &r_asm_plugin_sh,
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.version = R2_VERSION
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};
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#endif
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