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This commit applies some secondary changes in order to make `make test` pass cleanly: * disable broken postmortem debugging in common.gypi * drop obsolete strict mode test in parallel/test-repl * drop obsolete test parallel/test-v8-features PR-URL: #1232 Reviewed-By: Fedor Indutny <fedor@indutny.com>
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.settings | ||
.*.sw? | ||
bsuite | ||
compile_commands.json | ||
d8 | ||
d8_g | ||
gccauses | ||
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# Copyright 2015 the V8 project authors. All rights reserved. | ||
# Use of this source code is governed by a BSD-style license that can be | ||
# found in the LICENSE file. | ||
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# Autocompletion config for YouCompleteMe in V8. | ||
# | ||
# USAGE: | ||
# | ||
# 1. Install YCM [https://github.com/Valloric/YouCompleteMe] | ||
# (Googlers should check out [go/ycm]) | ||
# | ||
# 2. Profit | ||
# | ||
# | ||
# Usage notes: | ||
# | ||
# * You must use ninja & clang to build V8. | ||
# | ||
# * You must have run gyp_v8 and built V8 recently. | ||
# | ||
# | ||
# Hacking notes: | ||
# | ||
# * The purpose of this script is to construct an accurate enough command line | ||
# for YCM to pass to clang so it can build and extract the symbols. | ||
# | ||
# * Right now, we only pull the -I and -D flags. That seems to be sufficient | ||
# for everything I've used it for. | ||
# | ||
# * That whole ninja & clang thing? We could support other configs if someone | ||
# were willing to write the correct commands and a parser. | ||
# | ||
# * This has only been tested on gTrusty. | ||
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import os | ||
import os.path | ||
import subprocess | ||
import sys | ||
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# Flags from YCM's default config. | ||
flags = [ | ||
'-DUSE_CLANG_COMPLETER', | ||
'-std=gnu++0x', | ||
'-x', | ||
'c++', | ||
] | ||
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def PathExists(*args): | ||
return os.path.exists(os.path.join(*args)) | ||
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def FindV8SrcFromFilename(filename): | ||
"""Searches for the root of the V8 checkout. | ||
Simply checks parent directories until it finds .gclient and v8/. | ||
Args: | ||
filename: (String) Path to source file being edited. | ||
Returns: | ||
(String) Path of 'v8/', or None if unable to find. | ||
""" | ||
curdir = os.path.normpath(os.path.dirname(filename)) | ||
while not (PathExists(curdir, 'v8') and PathExists(curdir, 'v8', 'DEPS') | ||
and (PathExists(curdir, '.gclient') | ||
or PathExists(curdir, 'v8', '.git'))): | ||
nextdir = os.path.normpath(os.path.join(curdir, '..')) | ||
if nextdir == curdir: | ||
return None | ||
curdir = nextdir | ||
return os.path.join(curdir, 'v8') | ||
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def GetClangCommandFromNinjaForFilename(v8_root, filename): | ||
"""Returns the command line to build |filename|. | ||
Asks ninja how it would build the source file. If the specified file is a | ||
header, tries to find its companion source file first. | ||
Args: | ||
v8_root: (String) Path to v8/. | ||
filename: (String) Path to source file being edited. | ||
Returns: | ||
(List of Strings) Command line arguments for clang. | ||
""" | ||
if not v8_root: | ||
return [] | ||
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# Generally, everyone benefits from including V8's root, because all of | ||
# V8's includes are relative to that. | ||
v8_flags = ['-I' + os.path.join(v8_root)] | ||
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# Version of Clang used to compile V8 can be newer then version of | ||
# libclang that YCM uses for completion. So it's possible that YCM's libclang | ||
# doesn't know about some used warning options, which causes compilation | ||
# warnings (and errors, because of '-Werror'); | ||
v8_flags.append('-Wno-unknown-warning-option') | ||
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# Header files can't be built. Instead, try to match a header file to its | ||
# corresponding source file. | ||
if filename.endswith('.h'): | ||
alternates = ['.cc', '.cpp'] | ||
for alt_extension in alternates: | ||
alt_name = filename[:-2] + alt_extension | ||
if os.path.exists(alt_name): | ||
filename = alt_name | ||
break | ||
else: | ||
if filename.endswith('-inl.h'): | ||
for alt_extension in alternates: | ||
alt_name = filename[:-6] + alt_extension | ||
if os.path.exists(alt_name): | ||
filename = alt_name | ||
break; | ||
else: | ||
# If this is a standalone -inl.h file with no source, the best we can | ||
# do is try to use the default flags. | ||
return v8_flags | ||
else: | ||
# If this is a standalone .h file with no source, the best we can do is | ||
# try to use the default flags. | ||
return v8_flags | ||
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sys.path.append(os.path.join(v8_root, 'tools', 'ninja')) | ||
from ninja_output import GetNinjaOutputDirectory | ||
out_dir = os.path.realpath(GetNinjaOutputDirectory(v8_root)) | ||
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# Ninja needs the path to the source file relative to the output build | ||
# directory. | ||
rel_filename = os.path.relpath(os.path.realpath(filename), out_dir) | ||
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# Ask ninja how it would build our source file. | ||
p = subprocess.Popen(['ninja', '-v', '-C', out_dir, '-t', | ||
'commands', rel_filename + '^'], | ||
stdout=subprocess.PIPE) | ||
stdout, stderr = p.communicate() | ||
if p.returncode: | ||
return v8_flags | ||
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# Ninja might execute several commands to build something. We want the last | ||
# clang command. | ||
clang_line = None | ||
for line in reversed(stdout.split('\n')): | ||
if 'clang' in line: | ||
clang_line = line | ||
break | ||
else: | ||
return v8_flags | ||
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# Parse flags that are important for YCM's purposes. | ||
for flag in clang_line.split(' '): | ||
if flag.startswith('-I'): | ||
# Relative paths need to be resolved, because they're relative to the | ||
# output dir, not the source. | ||
if flag[2] == '/': | ||
v8_flags.append(flag) | ||
else: | ||
abs_path = os.path.normpath(os.path.join(out_dir, flag[2:])) | ||
v8_flags.append('-I' + abs_path) | ||
elif flag.startswith('-std'): | ||
v8_flags.append(flag) | ||
elif flag.startswith('-') and flag[1] in 'DWFfmO': | ||
if flag == '-Wno-deprecated-register' or flag == '-Wno-header-guard': | ||
# These flags causes libclang (3.3) to crash. Remove it until things | ||
# are fixed. | ||
continue | ||
v8_flags.append(flag) | ||
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return v8_flags | ||
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def FlagsForFile(filename): | ||
"""This is the main entry point for YCM. Its interface is fixed. | ||
Args: | ||
filename: (String) Path to source file being edited. | ||
Returns: | ||
(Dictionary) | ||
'flags': (List of Strings) Command line flags. | ||
'do_cache': (Boolean) True if the result should be cached. | ||
""" | ||
v8_root = FindV8SrcFromFilename(filename) | ||
v8_flags = GetClangCommandFromNinjaForFilename(v8_root, filename) | ||
final_flags = flags + v8_flags | ||
return { | ||
'flags': final_flags, | ||
'do_cache': True | ||
} |
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