mirror of https://github.com/FRRouting/frr.git
123 lines
3.7 KiB
Python
123 lines
3.7 KiB
Python
#!/usr/bin/python3
|
|
#
|
|
# FRR extended automake/Makefile functionality helper
|
|
#
|
|
# This script is executed on/after generating Makefile to add some pieces for
|
|
# clippy.
|
|
|
|
import sys
|
|
import os
|
|
import subprocess
|
|
import re
|
|
import argparse
|
|
from string import Template
|
|
from makevars import MakeReVars
|
|
|
|
argp = argparse.ArgumentParser(description = 'FRR Makefile extensions')
|
|
argp.add_argument('--dev-build', action = 'store_const', const = True,
|
|
help = 'run additional developer checks')
|
|
args = argp.parse_args()
|
|
|
|
with open('Makefile', 'r') as fd:
|
|
before = fd.read()
|
|
|
|
mv = MakeReVars(before)
|
|
|
|
clippy_scan = mv['clippy_scan'].strip().split()
|
|
for clippy_file in clippy_scan:
|
|
assert clippy_file.endswith('.c')
|
|
|
|
# check for files using clippy but not listed in clippy_scan
|
|
if args.dev_build:
|
|
basepath = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
|
|
if os.path.exists(os.path.join(basepath, '.git')):
|
|
clippy_ref = subprocess.check_output([
|
|
'git', '-C', basepath, 'grep', '-l', '-P', '^#\s*include.*_clippy.c', '--', '**.c']).decode('US-ASCII')
|
|
|
|
clippy_ref = set(clippy_ref.splitlines())
|
|
missing = clippy_ref - set(clippy_scan)
|
|
|
|
if len(missing) > 0:
|
|
sys.stderr.write('error: files seem to be using clippy, but not listed in "clippy_scan" in subdir.am:\n\t%s\n' % ('\n\t'.join(sorted(missing))))
|
|
sys.exit(1)
|
|
|
|
clippydep = Template('''
|
|
${clippybase}.$$(OBJEXT): ${clippybase}_clippy.c
|
|
${clippybase}.lo: ${clippybase}_clippy.c
|
|
${clippybase}_clippy.c: $$(CLIPPY_DEPS)''')
|
|
|
|
clippyauxdep = Template('''# clippy{
|
|
# auxiliary clippy target
|
|
${target}: ${clippybase}_clippy.c
|
|
# }clippy''')
|
|
|
|
lines = before.splitlines()
|
|
autoderp = '#AUTODERP# '
|
|
out_lines = []
|
|
bcdeps = []
|
|
make_rule_re = re.compile('^([^:\s]+):\s*([^:\s]+)\s*($|\n)')
|
|
|
|
while lines:
|
|
line = lines.pop(0)
|
|
if line.startswith(autoderp):
|
|
line = line[len(autoderp):]
|
|
|
|
if line == '# clippy{':
|
|
while lines:
|
|
line = lines.pop(0)
|
|
if line == '# }clippy':
|
|
break
|
|
continue
|
|
|
|
if line.startswith('#'):
|
|
out_lines.append(line)
|
|
continue
|
|
|
|
m = make_rule_re.match(line)
|
|
if m is None:
|
|
out_lines.append(line)
|
|
continue
|
|
|
|
target, dep = m.group(1), m.group(2)
|
|
|
|
if target.endswith('.lo') or target.endswith('.o'):
|
|
if not dep.endswith('.h'):
|
|
bcdeps.append('%s.bc: %s' % (target, target))
|
|
bcdeps.append('\t$(AM_V_LLVM_BC)$(COMPILE) -emit-llvm -c -o $@ %s' % (dep))
|
|
if m.group(2) in clippy_scan:
|
|
out_lines.append(clippyauxdep.substitute(target=m.group(1), clippybase=m.group(2)[:-2]))
|
|
|
|
out_lines.append(line)
|
|
|
|
out_lines.append('# clippy{\n# main clippy targets')
|
|
for clippy_file in clippy_scan:
|
|
out_lines.append(clippydep.substitute(clippybase = clippy_file[:-2]))
|
|
|
|
out_lines.append('')
|
|
out_lines.extend(bcdeps)
|
|
out_lines.append('')
|
|
bc_targets = []
|
|
for varname in ['bin_PROGRAMS', 'sbin_PROGRAMS', 'lib_LTLIBRARIES', 'module_LTLIBRARIES', 'noinst_LIBRARIES']:
|
|
bc_targets.extend(mv[varname].strip().split())
|
|
for target in bc_targets:
|
|
amtgt = target.replace('/', '_').replace('.', '_').replace('-', '_')
|
|
objs = mv[amtgt + '_OBJECTS'].strip().split()
|
|
objs = [obj + '.bc' for obj in objs]
|
|
deps = mv.get(amtgt + '_DEPENDENCIES', '').strip().split()
|
|
deps = [d + '.bc' for d in deps if d.endswith('.a')]
|
|
objs.extend(deps)
|
|
out_lines.append('%s.bc: %s' % (target, ' '.join(objs)))
|
|
out_lines.append('\t$(AM_V_LLVM_LD)$(LLVM_LINK) -o $@ $^')
|
|
out_lines.append('')
|
|
|
|
out_lines.append('# }clippy')
|
|
out_lines.append('')
|
|
|
|
after = '\n'.join(out_lines)
|
|
if after == before:
|
|
sys.exit(0)
|
|
|
|
with open('Makefile.pyout', 'w') as fd:
|
|
fd.write(after)
|
|
os.rename('Makefile.pyout', 'Makefile')
|