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#!/usr/bin/env python3
import sys
import re
import argparse
from pathlib import Path
# 80001c1a <IfxVadc_disableAccess>:
# 80001c1a: 40 4f mov.aa %a15,%a4
# 80001c1c: 02 48 mov %d8,%d4
# 80001c1e: 6d ff 9d ff call 80001b58 <IfxScuWdt_getSafetyWatchdogPassword>
unique_set = set()
def num2prefix_hex(x, prefix="#"):
if x.startswith("0x") or x.startswith("-0x") or x == "0":
x = prefix + x
if x.isdigit() or (x.startswith("-") and x[1:].isdigit()):
x = prefix + hex(int(x))
return x
def op2prefix_hex(x):
x = num2prefix_hex(x)
if "]" in x:
xs = x.split("]")
if xs[1].isdigit() or xs[1].startswith('-'):
x = xs[0] + "]" + num2prefix_hex(xs[1])
return x
def gen(filename):
with open(filename, "r") as f:
for line in f:
caps = re.findall(
r"([0-9a-f]+):\s+([0-9a-f]+) ([0-9a-f]+) ([0-9a-f]+)? ([0-9a-f]+)?\s+"
r"(\S+) (\S+)",
line,
)
if not caps:
continue
caps = caps[0]
addr = int(caps[0], 16)
hexstr = caps[1:5]
mnemonic: str = caps[5]
operands = caps[6]
def try_dedisp(x):
try:
disp = int(x, 16)
if disp > 0x80000000:
x = hex(disp - addr)
return x
except ValueError:
pass
return x
def is_hex_string(s: str) -> bool:
if not s.isalnum():
return False
return all(c.isdigit() or c.lower() in "abcdef" for c in s) and any(
c.lower() in "abcdef" for c in s
)
hexstr = ",".join(f"0x{x}" for x in hexstr if x)
fun = re.match(r"\s*<.+>\s*", operands)
# print(hex(addr), hexstr, mnemonic, operands)
if any(
[
mnemonic.startswith(pre)
for pre in [
"mtcr",
"mfcr",
"st.a",
"st.b",
"st.d",
"st.w",
"ld.a",
"ld.b",
"ld.d",
"ld.w",
]
]
):
# unique_set.add(f"# {hexstr.ljust(19)} = {mnemonic}\t{operands}")
continue
ops = operands.split(",")
if (
any(
[mnemonic.startswith(pre) for pre in ["j", "call", "loop", "fcall"]]
)
or fun
):
re.sub(r"\s*<.+>\s*", "", operands)
# de relative addressing
ops = list(map(try_dedisp, ops))
for i, x in enumerate(ops):
if is_hex_string(x) and not x.startswith("0x"):
x = "#0x" + x
x = op2prefix_hex(x)
ops[i] = x
operands = ", ".join(ops)
operands = operands.replace("%", "")
unique_set.add(f"{hexstr.ljust(19)} = {mnemonic}\t{operands}")
print("# CS_ARCH_TRICORE, CS_MODE_TRICORE_162, None")
print("\n".join(unique_set))
def att2intel(filename):
with open(filename, "r") as fp:
lines = []
for line in fp.readlines():
if not '=' in line:
lines.append(line)
continue
insn = line.split('=')
hexstr = insn[0]
insn = insn[1]
ops = insn.strip().split(', ')
ops = ops[0].split('\t') + ops[1:]
mnemonic = ops[0]
ops = ops[1:]
for i,op in enumerate(ops):
op = op.strip()
op = op2prefix_hex(op)
ops[i] = op
operands = ", ".join(ops)
lines.append(f"{hexstr.ljust(19)} = {mnemonic}\t{operands}")
print('\n'.join(lines))
def main():
parser = argparse.ArgumentParser(description="Convert objdump's output to .s.cs test file")
parser.add_argument('input', type=Path, help='input file path')
parser.add_argument('--intel', action='store_true', help='convert .s.cs file to intel syntax')
args = parser.parse_args()
if not args.intel:
gen(args.input)
else:
att2intel(args.input)
if __name__ == "__main__":
main()
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