Revert "SafeStack: Package SafeStack runtime for Linux"

SafeStack support has been abandoned.

Bug: 908597
Change-Id: I292cfa06bcad8953957480ea0ecf873cdb526f4c
Reviewed-on: https://chromium-review.googlesource.com/c/1351607
Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611287}

docs/updating_clang.md

@@ -26,8 +26,6 @@ An archive of all packages built so far is at https://is.gd/chromeclang
             gs://chromium-browser-clang/$x/llvmobjdump-$rev.tgz ; \
         gsutil.py cp -n -a public-read gs://chromium-browser-clang-staging/$x/llvmcfiverify-$rev.tgz \
             gs://chromium-browser-clang/$x/llvmcfiverify-$rev.tgz ; \
-        gsutil.py cp -n -a public-read gs://chromium-browser-clang-staging/$x/safestack-$rev.tgz \
-            gs://chromium-browser-clang/$x/safestack-$rev.tgz ; \
         gsutil.py cp -n -a public-read gs://chromium-browser-clang-staging/$x/translation_unit-$rev.tgz \
             gs://chromium-browser-clang/$x/translation_unit-$rev.tgz ; \
         gsutil.py cp -n -a public-read gs://chromium-browser-clang-staging/$x/llvm-code-coverage-$rev.tgz \

tools/clang/scripts/package.py

@@ -8,7 +8,6 @@ to a tgz file."""
 
 import argparse
 import fnmatch
-import glob
 import itertools
 import os
 import shutil
@@ -483,23 +482,6 @@ def main():
             filter=PrintTarProgress)
   MaybeUpload(args, cfiverifydir, platform)
 
-  # Zip up the SafeStack runtime for Linux
-  safestackdir = 'safestack-' + stamp
-  shutil.rmtree(safestackdir, ignore_errors=True)
-  os.makedirs(os.path.join(safestackdir, 'lib'))
-  for build in glob.glob(os.path.join(LLVM_RELEASE_DIR, 'lib', 'clang', '*')):
-    version = os.path.basename(build)
-    dest_dir = os.path.join(safestackdir, 'lib', 'clang', version,
-                            'lib', 'linux')
-    os.makedirs(dest_dir)
-    for lib in glob.glob(os.path.join(build, 'lib', 'linux',
-                                      '*libclang_rt.safestack*')):
-      shutil.copy(lib, dest_dir)
-  with tarfile.open(safestackdir + '.tgz', 'w:gz') as tar:
-    tar.add(os.path.join(safestackdir, 'lib'), arcname='lib',
-            filter=PrintTarProgress)
-  MaybeUpload(args, safestackdir, platform)
-
   # On Mac, lld isn't part of the main zip.  Upload it in a separate zip.
   if sys.platform == 'darwin':
     llddir = 'lld-' + stamp