NonSFI mode: Enable compiling exception_test for NonSFI NaCl on ARM

tests/exception_test/nacl.scons

 # -*- python -*-
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 Import('env')
 
-if not env.AllowInlineAssembly():
+# yay
+if not env.AllowNonStableBitcode():

[Junichi Uekawa, 2014/09/05 08:37:18]

Now this goes a bit further.

/ssd/nacl2/native_client/toolchain/linux_x86/pnacl_newlib/bin/pnacl-translate
-arch x86-32-nonsfi --allow-llvm-bitcode-input --allow-llvm-bitcode-input
--allow-llvm-bitcode-input --allow-llvm-bitcode-input
--allow-llvm-bitcode-input\
 --allow-llvm-bitcode-input --allow-llvm-bitcode-input
--allow-llvm-bitcode-input
scons-out/nacl_irt_test-x86-32-pnacl-pexe-nonsfi-clang/obj/tests/exception_test/exception_test.nonfinal.pexe
-o scons-out/nacl_irt_test-x86-32-pnacl-p\
exe-nonsfi-clang/obj/tests/exception_test/exception_test.nexe                   
                                                                                
                                                                       
/ssd/nacl2/native_client/toolchain/linux_x86/pnacl_newlib/host_x86_32/bin/le32-nacl-ld.gold:
error: read-only segment has dynamic relocations            

   Return()
 
+# if not env.AllowInlineAssembly():
+#   Return()
+if env.Bit('nonsfi_nacl'):
+  # Specifying the target arch is necessary for using inline assembly in pNaCl.
+  if env.Bit('target_x86_32'):
+    env.Append(CCFLAGS=['--target=i686-unknown-nacl',
+                        '--pnacl-allow-translate'])
+  elif env.Bit('target_arm'):
+    env.Append(CCFLAGS=['--target=arm-unknown-nacl', '-mfloat-abi=hard'])
+  else:
+    raise Exception('Unsupported architecture')
+  # env.SetBits('nonstable_bitcode')
+  env.Append(LINKFLAGS=['--pnacl-disable-abi-check'])
+
 test_args = {'sel_ldr_flags': ['-e', '-E', 'OUTSIDE_BROWSER=1'],
              'declares_exit_status': True}
 if env.Bit('target_arm') and env.UsingEmulator():
   test_args['sel_ldr_flags'].extend(['-E', 'UNDER_QEMU_ARM=1'])
 
 helper_files = []
-if env.Bit('target_x86'):
+if env.Bit('target_x86') and not env.Bit('nonsfi_nacl'):
+  # TODO(uekawa): enable this for NonSFI NaCl.
   helper_files.append('direction_flag_x86.S')
 exception_test = env.ComponentProgram(
     env.ProgramNameForNmf('exception_test'),
     ['exception_test.c'] + helper_files,
     EXTRA_LIBS=['${NONIRT_LIBS}', '${PTHREAD_LIBS}', '${TESTRUNNER_LIBS}',
                 '${EXCEPTION_LIBS}', 'test_common'])
 
 node = env.CommandSelLdrTestNacl(
     'exception_test.out', exception_test, **test_args)
 env.AddNodeToTestSuite(
@@ skipping 25 matching lines @@
     'exceptions_disabled_test',
     ['exceptions_disabled_test.c'],
     EXTRA_LIBS=['${NONIRT_LIBS}', '${EXCEPTION_LIBS}'])
 node = env.CommandSelLdrTestNacl(
     'exceptions_disabled_test.out',
     exceptions_disabled_test, [],
     declares_exit_status=True)
 env.AddNodeToTestSuite(
     node, ['small_tests', 'exception_tests'],
     'run_exceptions_disabled_test')