radare2/libr/anal/p/anal_propeller.c

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2014-08-28 06:08:11 +00:00
/* radare - LGPL - Copyright 2012-2013 - pancake
2014 - Fedor Sakharov <fedor.sakharov@gmail.com> */
#include <string.h>
#include <r_types.h>
#include <r_lib.h>
#include <r_asm.h>
#include <r_anal.h>
#include <r_util.h>
#include <propeller_disas.h>
static int propeller_op(RAnal *anal, RAnalOp *op, ut64 addr,
const ut8 *buf, int len)
{
int ret;
struct propeller_cmd cmd;
memset (&cmd, 0, sizeof (cmd));
memset (op, 0, sizeof (RAnalOp));
ret = op->size = propeller_decode_command (buf, &cmd);
if (ret < 0) {
return ret;
}
op->addr = addr;
op->jump = op->fail = UT64_MAX;
op->ptr = op->val = -1;
switch (cmd.opcode) {
case PROP_TEST:
case PROP_TESTN:
case PROP_TJNZ:
case PROP_TJZ:
case PROP_CMPS:
case PROP_CMPSUB:
op->type = R_ANAL_OP_TYPE_CMP;
break;
case PROP_ADD:
case PROP_ADDX:
case PROP_ADDABS:
op->type = R_ANAL_OP_TYPE_ADD;
break;
case PROP_OR:
op->type = R_ANAL_OP_TYPE_OR;
break;
case PROP_RCL:
case PROP_ROL:
case PROP_SHL:
op->type = R_ANAL_OP_TYPE_ROL;
break;
case PROP_RCR:
case PROP_ROR:
case PROP_SHR:
op->type = R_ANAL_OP_TYPE_ROR;
break;
case PROP_NEG:
op->type = R_ANAL_OP_TYPE_AND;
break;
case PROP_XOR:
op->type = R_ANAL_OP_TYPE_XOR;
break;
case PROP_ABS:
case PROP_MINS:
case PROP_MIN:
case PROP_MAX:
case PROP_MAXS:
case PROP_RDBYTE:
case PROP_RDLONG:
case PROP_RDWORD:
case PROP_MOV:
case PROP_MOVD:
case PROP_MOVI:
case PROP_MOVS:
case PROP_WAITVID:
case PROP_MUXC:
if (cmd.opcode == PROP_MOV && cmd.dst == 0x44 && cmd.src == 0x3c) {
op->type = R_ANAL_OP_TYPE_RET;
} else {
op->type = R_ANAL_OP_TYPE_MOV;
}
break;
case PROP_SUB:
op->type = R_ANAL_OP_TYPE_SUB;
break;
case PROP_JMP:
case PROP_DJNZ:
if (cmd.immed == 0) {
op->type = R_ANAL_OP_TYPE_CJMP;
op->jump = 0x20 + cmd.src;
op->fail = addr + 2;
} else {
op->type = R_ANAL_OP_TYPE_UJMP;
op->fail = addr + 2;
}
break;
default:
op->type = R_ANAL_OP_TYPE_UNK;
break;
}
return ret;
}
struct r_anal_plugin_t r_anal_plugin_propeller = {
.name = "propeller",
.desc = "Parallax propeller code analysis plugin",
.license = "LGPL3",
.arch = R_SYS_ARCH_PROPELLER,
.bits = 32,
.init = NULL,
.fini = NULL,
.op = propeller_op,
.set_reg_profile = NULL,
.fingerprint_bb = NULL,
.fingerprint_fcn = NULL,
.diff_bb = NULL,
.diff_fcn = NULL,
.diff_eval = NULL,
};