Create ARMv7M vendor interrupt table from SVD description file

armv7m_irq_svd_to_c.py

import re
import sys

if len(sys.argv) < 1:
  print("Usage: {} <svdfile.svd>".format(sys.argv[0]))

regex = r"<interrupt>\s*<name>(\S+)<\/name>\s*<value>(\S+)<\/value>\s*<\/interrupt>"

def intname(name): return "0" if not name else "{}_IRQHandler".format(name)
def declname(name): return "void {} __attribute__((weak));".format(intname(name))

with open(sys.argv[1]) as f:
  vector = {int(m.group(2)): m.group(1) for m in re.finditer(regex, f.read())}
  vector.update(armv7m_handlers)
  print(vector)
  print('\n'.join([declname(v) for k, v in vector.items()]));
  vt = [None] * (max(vector.keys()) + 1)
  for k, v in vector.items(): vt[k]=v
  print("\nvoid *vendor_vector_table[] = {{\n{},\n}}".format(',\n'.join("    "+intname(name) for name in vt)))