third_party/aesni-intel/wscript

   1 #!/usr/bin/env python
   2 from waflib import Options
   3 from waflib import Utils
   4
   5 def configure(conf):
   6     if Options.options.accel_aes.lower() == "intelaesni":
   7         asm_flags = ('-Wp,-E,-lang-asm', '-xassembler-with-cpp')
   8         for f in asm_flags:
   9             if conf.CHECK_CFLAGS(f, ''):
  10                 conf.DEFINE('AESNI_INTEL_CFLAGS', f)
  11                 break
  12         if conf.CONFIG_SET('AESNI_INTEL_CFLAGS'):
  13             if conf.env['SYSTEM_UNAME_MACHINE'] in ('x86_64', 'amd64'):
  14                 print("Compiling with Intel AES instructions")
  15                 conf.DEFINE('HAVE_AESNI_INTEL', 1)
  16             else:
  17                 raise Utils.WafError('--accel-aes=intelaesni selected and non x86_64 CPU')
  18         else:
  19             raise Utils.WafError('--aes-accel=intelaesni selected and compiler rejects ' + str(asm_flags))
  20         if not conf.CHECK_LDFLAGS('-Wl,-z,noexecstack'):
  21             raise Utils.WafError('--accel-aes=intelaesni selected and linker rejects -z noexecstack')
  22
  23 def build(bld):
  24     if not bld.CONFIG_SET('HAVE_AESNI_INTEL'):
  25         return
  26
  27     bld.SAMBA_LIBRARY('aesni-intel',
  28         source='aesni-intel_asm.c',
  29         cflags=bld.CONFIG_GET('AESNI_INTEL_CFLAGS'),
  30         ldflags='-Wl,-z,noexecstack',
  31         private_library=True)