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clang_linux: also build an MSAN libc++

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This will be used by MSAN bots: build with -stdlib=libc++,
then run with LD_LIBRARY_PATH=/path/to/clang_linux/msan.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2324503002

Review-Url: https://codereview.chromium.org/2324503002
This commit is contained in:
mtklein 2016-09-07 12:26:53 -07:00 committed by Commit bot
parent 600c737b64
commit 1a9466799e
2 changed files with 16 additions and 4 deletions
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2
infra/bots/assets/clang_linux/VERSION
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@ -1 +1 @@
3
4

18
infra/bots/assets/clang_linux/create.py
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@ -18,6 +18,7 @@ REPO = "https://llvm.googlesource.com/"
BRANCH = "release_39"
def create_asset(target_dir):
# Build Clang, lld, compiler-rt (sanitizer support) and libc++.
os.chdir(tempfile.mkdtemp())
subprocess.check_call(["git", "clone", "-b", BRANCH, REPO + "llvm"])
os.chdir("llvm/tools")
@ -35,14 +36,25 @@ def create_asset(target_dir):
"-DCMAKE_INSTALL_PREFIX=" + target_dir,
"-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON",
"-DLLVM_ENABLE_TERMINFO=OFF"])
subprocess.check_call(["cmake", "--build", "."])
subprocess.check_call(["cmake", "--build", ".", "--target", "install"])
subprocess.check_call(["cp", "bin/llvm-symbolizer", target_dir + "/bin"])
subprocess.check_call(["ninja", "install"])
# Copy a couple extra files we need.
subprocess.check_call(["cp", "bin/llvm-symbolizer", target_dir + "/bin"])
libstdcpp = subprocess.check_output(["c++",
"-print-file-name=libstdc++.so.6"])
subprocess.check_call(["cp", libstdcpp.strip(), target_dir + "/lib"])
# Finally, build libc++ for MSAN bots using the Clang we just built.
os.mkdir("../msan_out")
os.chdir("../msan_out")
subprocess.check_call(["cmake", "..", "-G", "Ninja",
"-DCMAKE_BUILD_TYPE=MinSizeRel",
"-DCMAKE_C_COMPILER=" + target_dir + "/bin/clang",
"-DCMAKE_CXX_COMPILER=" + target_dir + "/bin/clang++",
"-DLLVM_USE_SANITIZER=MemoryWithOrigins"])
subprocess.check_call(["ninja", "cxx"])
subprocess.check_call(["cp", "-r", "lib", target_dir + "/msan"])
def main():
parser = argparse.ArgumentParser()