Revert of roll clang 254049:254793

Revert of roll clang 254049:254793 (patchset #3 id:40001 of https://codereview.chromium.org/1507873002/ )

Reason for revert:
Speculative revert to see if this fixes link error on 'Google Chrome Linux x64'. Please see first comment on the revert CL for more info.

Original issue's description:
> roll clang 254049:254793
>
> This switches msan to the new ABI.
>
> It's also the first roll that used update.py instead of
> update.sh to build the packages.
>
> It also changes package.py to bundle up libstdc++ on linux
> unconditionally, and removes the --gcc-toolchain flag from
> it (the auto-downloaded gcc should be good enough;
> one fewer thing I can get wrong).
>
> BUG=565541
>
> Committed: https://crrev.com/3c862a1dff6cbe5f693ba788cdc71770d408e7b7
> Cr-Commit-Position: refs/heads/master@{#363986}

TBR=hans@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=565541
Committed: https://crrev.com/af4e20d002ee9acc62854db5bd89f2aa14b2d419
Cr-Commit-Position: refs/heads/master@{#364051}

[engedy, 2015-12-09 12:57:03]

Created Revert of roll clang 254049:254793

[commit-bot: I haz the power, 2015-12-09 12:57:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1508403002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1508403002/1

[engedy, 2015-12-09 12:57:49]

Bot:
https://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20Linux...

FAILED: ../../third_party/llvm-build/Release+Asserts/bin/clang++ -pie
-Wl,--fatal-warnings -fPIC -Wl,-z,noexecstack -Wl,-z,now -Wl,-z,relro
-Wl,-z,defs -B../../third_party/binutils/Linux_x64/Release/bin -fuse-ld=gold
-Wl,--icf=all -pthread -m64 -Wl,-O1 -Wl,--gc-sections -Wl,--as-needed
--sysroot=/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot
-L/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/lib/x86_64-linux-gnu\
-Wl,-rpath-link=/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/lib/x86_64-linux-gnu\
-L/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/x86_64-linux-gnu\
-Wl,-rpath-link=/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/x86_64-linux-gnu\
-L/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6\
-Wl,-rpath-link=/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6\
-L/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib\
-Wl,-rpath-link=/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib
-flto -fsanitize=cfi-vcall -fsanitize=cfi-derived-cast
-fsanitize=cfi-unrelated-cast -Wl,-plugin-opt,O1 -Wl,-rpath=\$ORIGIN/.
-Wl,-rpath-link=. -Wl,--disable-new-dtags -Wl,--export-dynamic -o
"./nacl_helper" -Wl,--start-group @"./nacl_helper.rsp"  -Wl,--end-group  -ldl
-lgmodule-2.0 -lgobject-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lpangocairo-1.0
-lpango-1.0 -lcairo -lXcomposite -lgconf-2 -lresolv -lnss3 -lnssutil3 -lsmime3
-lplds4 -lplc4 -lnspr4 -lgio-2.0 -lfreetype -lfontconfig -lexpat -lXext -lX11
-lXrender -latk-1.0 -lXss -lXcursor -lXdamage -lXfixes -lXi -lXtst -lXrandr
-lasound -lm -lz -ldbus-1 
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: error:
/tmp/lto-llvm-129aa6.o: multiple definition of 'fstat64'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold:
/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libc_nonshared.a(fstat64.oS):
previous definition here
../../third_party/binutils/Linux_x64/Release/bin/ld.gold: error:
/tmp/lto-llvm-129aa6.o: multiple definition of 'stat64'
../../third_party/binutils/Linux_x64/Release/bin/ld.gold:
/b/build/slave/google-chrome-rel-linux_64/build/src/build/linux/debian_wheezy_amd64-sysroot/usr/lib/gcc/x86_64-linux-gnu/4.6/../../../x86_64-linux-gnu/libc_nonshared.a(stat64.oS):
previous definition here
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

[commit-bot: I haz the power, 2015-12-09 12:58:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-09 12:59:26]

Description was changed from

==========
Revert of roll clang 254049:254793 (patchset #3 id:40001 of
https://codereview.chromium.org/1507873002/ )

Reason for revert:
Speculative revert to see if this fixes link error on 'Google Chrome Linux x64'.
Please see first comment on the revert CL for more info.

Original issue's description:
> roll clang 254049:254793
> 
> This switches msan to the new ABI.
> 
> It's also the first roll that used update.py instead of
> update.sh to build the packages.
> 
> It also changes package.py to bundle up libstdc++ on linux
> unconditionally, and removes the --gcc-toolchain flag from
> it (the auto-downloaded gcc should be good enough;
> one fewer thing I can get wrong).
> 
> BUG=565541
> 
> Committed: https://crrev.com/3c862a1dff6cbe5f693ba788cdc71770d408e7b7
> Cr-Commit-Position: refs/heads/master@{#363986}

TBR=hans@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=565541
==========

to

==========
Revert of roll clang 254049:254793 (patchset #3 id:40001 of
https://codereview.chromium.org/1507873002/ )

Reason for revert:
Speculative revert to see if this fixes link error on 'Google Chrome Linux x64'.
Please see first comment on the revert CL for more info.

Original issue's description:
> roll clang 254049:254793
>
> This switches msan to the new ABI.
>
> It's also the first roll that used update.py instead of
> update.sh to build the packages.
>
> It also changes package.py to bundle up libstdc++ on linux
> unconditionally, and removes the --gcc-toolchain flag from
> it (the auto-downloaded gcc should be good enough;
> one fewer thing I can get wrong).
>
> BUG=565541
>
> Committed: https://crrev.com/3c862a1dff6cbe5f693ba788cdc71770d408e7b7
> Cr-Commit-Position: refs/heads/master@{#363986}

TBR=hans@chromium.org,thakis@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=565541

Committed: https://crrev.com/af4e20d002ee9acc62854db5bd89f2aa14b2d419
Cr-Commit-Position: refs/heads/master@{#364051}
==========

[commit-bot: I haz the power, 2015-12-09 12:59:27]

Patchset 1 (id:??) landed as
https://crrev.com/af4e20d002ee9acc62854db5bd89f2aa14b2d419
Cr-Commit-Position: refs/heads/master@{#364051}

[Nico, 2015-12-09 14:52:51]

I can't reproduce the link error on my local "roll clang" branch off #363783.
I'll try on a newer revision. (This suggests it might not be due to the roll.)

[Nico, 2015-12-09 15:20:11]

On 2015/12/09 14:52:51, Nico wrote:
> I can't reproduce the link error on my local "roll clang" branch off #363783.
> I'll try on a newer revision. (This suggests it might not be due to the roll.)

Possibly it's the combination of roll + CFI? ...yeah, looks like it. Filed
https://code.google.com/p/chromium/issues/detail?id=568121

[Nico, 2015-12-09 15:35:23]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1514573002/ by thakis@chromium.org.

The reason for reverting is: Should work with CFI reverted..