kc3-lang/harfbuzz/src/check-static-inits.py

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• Hash : 77c24e8a
  Author :
  Date : 2025-05-06T13:17:13
  

  [check-*.py] Remove autotoolism
  
  Instead of passing source dir and build dir to as envvars, pass
  them directly as script arguments. The scripts also were supposed to be
  able to run outsize of the build scripts, but this was broken since the
  fallback when the envvars were not set was wrong.
  
  The HBSOURCES and HBHEADERS are still passed as envvars since they are
  long lists and might hit command line length limitation on some systems.
  

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• src/check-static-inits.py

• #!/usr/bin/env python3
  
  import glob
  import os
  import re
  import shutil
  import subprocess
  import sys
  
  srcdir = sys.argv[1]
  base_srcdir = sys.argv[2]
  builddir = sys.argv[3]
  
  objdump = os.getenv("OBJDUMP", shutil.which("objdump"))
  if not objdump:
      print("check-static-inits.py: 'ldd' not found; skipping test")
      sys.exit(77)
  
  if sys.version_info < (3, 5):
      print("check-static-inits.py: needs python 3.5 for recursive support in glob")
      sys.exit(77)
  
  OBJS = glob.glob(os.path.join(builddir, "**", "*hb*.o"), recursive=True)
  if not OBJS:
      print("check-static-inits.py: object files not found; skipping test")
      sys.exit(77)
  
  stat = 0
  tested = False
  
  print("Checking that the following object files has no static initializers/finalizers")
  print("\n".join(OBJS))
  
  result = subprocess.run(
      objdump.split() + ["-t"] + OBJS, stdout=subprocess.PIPE, stderr=subprocess.PIPE
  )
  
  if result.returncode:
      if result.stderr.find(b"not recognized") != -1:
          # https://github.com/harfbuzz/harfbuzz/issues/3019
          print('objdump returned "not recognized", skipping')
      else:
          print("objdump returned error:\n%s" % (result.stderr.decode("utf-8")))
          stat = 2
  else:
      tested = True
  
  result = result.stdout.decode("utf-8")
  
  # Checking that no object file has static initializers
  for lib in re.findall(r"^.*\.[cd]tors.*$", result, re.MULTILINE):
      if not re.match(r".*\b0+\b", lib):
          print("Ouch, library has static initializers/finalizers")
          stat = 1
  
  # Checking that no object file has lazy static C++ constructors/destructors or other such stuff
  if ("__cxa_" in result) and ("__ubsan_handle" not in result):
      print(
          "Ouch, library has lazy static C++ constructors/destructors or other such stuff"
      )
      stat = 1
  
  
  sys.exit(stat if tested else 77)
  

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