--- /dev/null
+# Copyright (c) 2013 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Utility functions shared amongst the Windows generators."""
+
+import copy
+import os
+
+
+# A dictionary mapping supported target types to extensions.
+TARGET_TYPE_EXT = {
+ 'executable': 'exe',
+ 'loadable_module': 'dll',
+ 'shared_library': 'dll',
+ 'static_library': 'lib',
+}
+
+
+def _GetLargePdbShimCcPath():
+ """Returns the path of the large_pdb_shim.cc file."""
+ this_dir = os.path.abspath(os.path.dirname(__file__))
+ src_dir = os.path.abspath(os.path.join(this_dir, '..', '..'))
+ win_data_dir = os.path.join(src_dir, 'data', 'win')
+ large_pdb_shim_cc = os.path.join(win_data_dir, 'large-pdb-shim.cc')
+ return large_pdb_shim_cc
+
+
+def _DeepCopySomeKeys(in_dict, keys):
+ """Performs a partial deep-copy on |in_dict|, only copying the keys in |keys|.
+
+ Arguments:
+ in_dict: The dictionary to copy.
+ keys: The keys to be copied. If a key is in this list and doesn't exist in
+ |in_dict| this is not an error.
+ Returns:
+ The partially deep-copied dictionary.
+ """
+ d = {}
+ for key in keys:
+ if key not in in_dict:
+ continue
+ d[key] = copy.deepcopy(in_dict[key])
+ return d
+
+
+def _SuffixName(name, suffix):
+ """Add a suffix to the end of a target.
+
+ Arguments:
+ name: name of the target (foo#target)
+ suffix: the suffix to be added
+ Returns:
+ Target name with suffix added (foo_suffix#target)
+ """
+ parts = name.rsplit('#', 1)
+ parts[0] = '%s_%s' % (parts[0], suffix)
+ return '#'.join(parts)
+
+
+def _ShardName(name, number):
+ """Add a shard number to the end of a target.
+
+ Arguments:
+ name: name of the target (foo#target)
+ number: shard number
+ Returns:
+ Target name with shard added (foo_1#target)
+ """
+ return _SuffixName(name, str(number))
+
+
+def ShardTargets(target_list, target_dicts):
+ """Shard some targets apart to work around the linkers limits.
+
+ Arguments:
+ target_list: List of target pairs: 'base/base.gyp:base'.
+ target_dicts: Dict of target properties keyed on target pair.
+ Returns:
+ Tuple of the new sharded versions of the inputs.
+ """
+ # Gather the targets to shard, and how many pieces.
+ targets_to_shard = {}
+ for t in target_dicts:
+ shards = int(target_dicts[t].get('msvs_shard', 0))
+ if shards:
+ targets_to_shard[t] = shards
+ # Shard target_list.
+ new_target_list = []
+ for t in target_list:
+ if t in targets_to_shard:
+ for i in range(targets_to_shard[t]):
+ new_target_list.append(_ShardName(t, i))
+ else:
+ new_target_list.append(t)
+ # Shard target_dict.
+ new_target_dicts = {}
+ for t in target_dicts:
+ if t in targets_to_shard:
+ for i in range(targets_to_shard[t]):
+ name = _ShardName(t, i)
+ new_target_dicts[name] = copy.copy(target_dicts[t])
+ new_target_dicts[name]['target_name'] = _ShardName(
+ new_target_dicts[name]['target_name'], i)
+ sources = new_target_dicts[name].get('sources', [])
+ new_sources = []
+ for pos in range(i, len(sources), targets_to_shard[t]):
+ new_sources.append(sources[pos])
+ new_target_dicts[name]['sources'] = new_sources
+ else:
+ new_target_dicts[t] = target_dicts[t]
+ # Shard dependencies.
+ for t in new_target_dicts:
+ for deptype in ('dependencies', 'dependencies_original'):
+ dependencies = copy.copy(new_target_dicts[t].get(deptype, []))
+ new_dependencies = []
+ for d in dependencies:
+ if d in targets_to_shard:
+ for i in range(targets_to_shard[d]):
+ new_dependencies.append(_ShardName(d, i))
+ else:
+ new_dependencies.append(d)
+ new_target_dicts[t][deptype] = new_dependencies
+
+ return (new_target_list, new_target_dicts)
+
+
+def _GetPdbPath(target_dict, config_name, vars):
+ """Returns the path to the PDB file that will be generated by a given
+ configuration.
+
+ The lookup proceeds as follows:
+ - Look for an explicit path in the VCLinkerTool configuration block.
+ - Look for an 'msvs_large_pdb_path' variable.
+ - Use '<(PRODUCT_DIR)/<(product_name).(exe|dll).pdb' if 'product_name' is
+ specified.
+ - Use '<(PRODUCT_DIR)/<(target_name).(exe|dll).pdb'.
+
+ Arguments:
+ target_dict: The target dictionary to be searched.
+ config_name: The name of the configuration of interest.
+ vars: A dictionary of common GYP variables with generator-specific values.
+ Returns:
+ The path of the corresponding PDB file.
+ """
+ config = target_dict['configurations'][config_name]
+ msvs = config.setdefault('msvs_settings', {})
+
+ linker = msvs.get('VCLinkerTool', {})
+
+ pdb_path = linker.get('ProgramDatabaseFile')
+ if pdb_path:
+ return pdb_path
+
+ variables = target_dict.get('variables', {})
+ pdb_path = variables.get('msvs_large_pdb_path', None)
+ if pdb_path:
+ return pdb_path
+
+
+ pdb_base = target_dict.get('product_name', target_dict['target_name'])
+ pdb_base = '%s.%s.pdb' % (pdb_base, TARGET_TYPE_EXT[target_dict['type']])
+ pdb_path = vars['PRODUCT_DIR'] + '/' + pdb_base
+
+ return pdb_path
+
+
+def InsertLargePdbShims(target_list, target_dicts, vars):
+ """Insert a shim target that forces the linker to use 4KB pagesize PDBs.
+
+ This is a workaround for targets with PDBs greater than 1GB in size, the
+ limit for the 1KB pagesize PDBs created by the linker by default.
+
+ Arguments:
+ target_list: List of target pairs: 'base/base.gyp:base'.
+ target_dicts: Dict of target properties keyed on target pair.
+ vars: A dictionary of common GYP variables with generator-specific values.
+ Returns:
+ Tuple of the shimmed version of the inputs.
+ """
+ # Determine which targets need shimming.
+ targets_to_shim = []
+ for t in target_dicts:
+ target_dict = target_dicts[t]
+
+ # We only want to shim targets that have msvs_large_pdb enabled.
+ if not int(target_dict.get('msvs_large_pdb', 0)):
+ continue
+ # This is intended for executable, shared_library and loadable_module
+ # targets where every configuration is set up to produce a PDB output.
+ # If any of these conditions is not true then the shim logic will fail
+ # below.
+ targets_to_shim.append(t)
+
+ large_pdb_shim_cc = _GetLargePdbShimCcPath()
+
+ for t in targets_to_shim:
+ target_dict = target_dicts[t]
+ target_name = target_dict.get('target_name')
+
+ base_dict = _DeepCopySomeKeys(target_dict,
+ ['configurations', 'default_configuration', 'toolset'])
+
+ # This is the dict for copying the source file (part of the GYP tree)
+ # to the intermediate directory of the project. This is necessary because
+ # we can't always build a relative path to the shim source file (on Windows
+ # GYP and the project may be on different drives), and Ninja hates absolute
+ # paths (it ends up generating the .obj and .obj.d alongside the source
+ # file, polluting GYPs tree).
+ copy_suffix = 'large_pdb_copy'
+ copy_target_name = target_name + '_' + copy_suffix
+ full_copy_target_name = _SuffixName(t, copy_suffix)
+ shim_cc_basename = os.path.basename(large_pdb_shim_cc)
+ shim_cc_dir = vars['SHARED_INTERMEDIATE_DIR'] + '/' + copy_target_name
+ shim_cc_path = shim_cc_dir + '/' + shim_cc_basename
+ copy_dict = copy.deepcopy(base_dict)
+ copy_dict['target_name'] = copy_target_name
+ copy_dict['type'] = 'none'
+ copy_dict['sources'] = [ large_pdb_shim_cc ]
+ copy_dict['copies'] = [{
+ 'destination': shim_cc_dir,
+ 'files': [ large_pdb_shim_cc ]
+ }]
+
+ # This is the dict for the PDB generating shim target. It depends on the
+ # copy target.
+ shim_suffix = 'large_pdb_shim'
+ shim_target_name = target_name + '_' + shim_suffix
+ full_shim_target_name = _SuffixName(t, shim_suffix)
+ shim_dict = copy.deepcopy(base_dict)
+ shim_dict['target_name'] = shim_target_name
+ shim_dict['type'] = 'static_library'
+ shim_dict['sources'] = [ shim_cc_path ]
+ shim_dict['dependencies'] = [ full_copy_target_name ]
+
+ # Set up the shim to output its PDB to the same location as the final linker
+ # target.
+ for config_name, config in shim_dict.get('configurations').iteritems():
+ pdb_path = _GetPdbPath(target_dict, config_name, vars)
+
+ # A few keys that we don't want to propagate.
+ for key in ['msvs_precompiled_header', 'msvs_precompiled_source', 'test']:
+ config.pop(key, None)
+
+ msvs = config.setdefault('msvs_settings', {})
+
+ # Update the compiler directives in the shim target.
+ compiler = msvs.setdefault('VCCLCompilerTool', {})
+ compiler['DebugInformationFormat'] = '3'
+ compiler['ProgramDataBaseFileName'] = pdb_path
+
+ # Set the explicit PDB path in the appropriate configuration of the
+ # original target.
+ config = target_dict['configurations'][config_name]
+ msvs = config.setdefault('msvs_settings', {})
+ linker = msvs.setdefault('VCLinkerTool', {})
+ linker['GenerateDebugInformation'] = 'true'
+ linker['ProgramDatabaseFile'] = pdb_path
+
+ # Add the new targets. They must go to the beginning of the list so that
+ # the dependency generation works as expected in ninja.
+ target_list.insert(0, full_copy_target_name)
+ target_list.insert(0, full_shim_target_name)
+ target_dicts[full_copy_target_name] = copy_dict
+ target_dicts[full_shim_target_name] = shim_dict
+
+ # Update the original target to depend on the shim target.
+ target_dict.setdefault('dependencies', []).append(full_shim_target_name)
+
+ return (target_list, target_dicts)
Code Review / simantics / district.git / blobdiff