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Add archinfo for m68k and properly handle truncated instructions

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This commit is contained in:
Sergi Àlvarez i Capilla 2022-01-28 15:43:46 +01:00
parent 7e3bd42110
commit b306d07246
1 changed files with 23 additions and 2 deletions
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25
libr/anal/p/anal_m68k_cs.c
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@ -210,11 +210,17 @@ static int analop(RAnal *a, RAnalOp *op, ut64 addr, const ut8 *buf, int len, RAn
}
n = cs_disasm (handle, (ut8*)buf, len, addr, 1, &insn);
int on = n;
if (!strncmp (insn->mnemonic, "dc.w", 4)) {
if (!insn || !strncmp (insn->mnemonic, "dc.w", 4)) {
if (mask & R_ANAL_OP_MASK_DISASM) {
op->mnemonic = strdup ("invalid");
n = 2;
} else {
n = -1;
}
n = 2;
op->type = R_ANAL_OP_TYPE_ILL;
op->size = 2;
opsize = 2;
goto beach;
} else if (mask & R_ANAL_OP_MASK_DISASM) {
char *str = r_str_newf ("%s%s%s", insn->mnemonic, insn->op_str[0]? " ": "", insn->op_str);
if (str) {
@ -784,12 +790,27 @@ static bool set_reg_profile(RAnal *anal) {
return r_reg_set_profile_string (anal->reg, p);
}
static int archinfo(RAnal *anal, int q) {
switch (q) {
case R_ANAL_ARCHINFO_ALIGN:
return 2;
case R_ANAL_ARCHINFO_MAX_OP_SIZE:
return 6;
case R_ANAL_ARCHINFO_INV_OP_SIZE:
return 2;
case R_ANAL_ARCHINFO_MIN_OP_SIZE:
return 2;
}
return 2;
}
RAnalPlugin r_anal_plugin_m68k_cs = {
.name = "m68k",
.desc = "Capstone M68K analyzer",
.license = "BSD",
.esil = false,
.arch = "m68k",
.archinfo = archinfo,
.set_reg_profile = &set_reg_profile,
.bits = 32,
.op = &analop,