Add options for base dir and redirecting files to IRT open resource and use it.

pnacl/driver/pnacl-translate.py

 #!/usr/bin/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 driver_tools
 import filetype
 import ldtools
 import multiprocessing
 import os
@@ skipping 336 matching lines @@
     # issues that the current splitting scheme doesn't account for.
     #
     # For now, also do not enable multi-threaded translation when TARGET_OS !=
     # 'nacl', since in these cases we will be using the host toolchain's
     # linker.
     #
     # The x86->arm emulator is very flaky when threading is used, so don't
     # do module splitting when using it.
     env.set('SPLIT_MODULE', '1')
   else:
-    modules = env.getone('SPLIT_MODULE')
-    if modules != '1':
-      env.append('LLC_FLAGS_EXTRA', '-split-module=' + modules)
-      env.append('LD_FLAGS', '-split-module=' + modules)
+    # Do not set -streaming-bitcode for sandboxed mode, because it is already
+    # in the default command line.
     if not env.getbool('SANDBOXED') and env.getbool('STREAM_BITCODE'):

[jvoung (off chromium), 2014/12/02 16:24:08]

Had to revert this bit to stay within the "else:".

Otherwise -streaming-bitcode seems to also break some of the EH tests:
Alias must point to a definition
void (%"class.std::bad_alloc"*)* @_ZNSt9bad_allocC1Ev
Alias must point to a definition
void (%"class.std::bad_alloc"*)* @_ZNSt9bad_allocD1Ev
Alias must point to a definition
void (%"class.std::bad_array_new_length"*)* @_ZNSt20bad_array_new_lengthC1Ev
Alias must point to a definition
void (%"class.std::bad_array_new_length"*)* @_ZNSt20bad_array_new_lengthD1Ev
Alias must point to a definition
void (%"class.std::bad_array_new_length"*)* @_ZNSt20bad_array_new_lengthD2Ev
Alias must point to a definition
void (%"class.std::bad_array_length"*)* @_ZNSt16bad_array_lengthC1Ev

-      # Do not set -streaming-bitcode for sandboxed mode, because it is already
-      # in the default command line.
       env.append('LLC_FLAGS_EXTRA', '-streaming-bitcode')
+  modules = env.getone('SPLIT_MODULE')
+  env.append('LLC_FLAGS_EXTRA', '-split-module=' + modules)
+  env.append('LD_FLAGS', '-split-module=' + modules)
 
   # If there's a bitcode file, translate it now.
   tng = driver_tools.TempNameGen(inputs + bcfiles, output)
   output_type = env.getone('OUTPUT_TYPE')
   if bcfile:
     sfile = None
     if output_type == 's':
       sfile = output
 
     ofile = None
@@ skipping 167 matching lines @@
 
 ADVANCED OPTIONS:
   -mattr=<+feat1,-feat2>  Toggle specific cpu features on and off.
   -mcpu=<cpu-name>        Target a specific cpu type.  Tunes code as well as
                           turns cpu features on and off.
   -S                      Generate native assembly only.
   -c                      Generate native object file only.
   --pnacl-sb              Use the translator which runs inside the NaCl sandbox.
   -O[0-3]                 Change translation-time optimization level.
 """