The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/dcc289d12efe6c37ce3920f9441dfe533598d144

commit dcc289d12efe6c37ce3920f9441dfe533598d144
Author: Max Moroz <mmoroz@chromium.org>
Date: Fri Aug 03 04:43:29 2018

Do not bundle compiler-rt libraries (ASan,UBSan,Profile) for Android i686.

Bug:  870331 
Change-Id: Icbf8bc191e4078bd3ee8fb7fe15e51caae59e372
Reviewed-on: https://chromium-review.googlesource.com/1160861
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580453}
[modify] https://crrev.com/dcc289d12efe6c37ce3920f9441dfe533598d144/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c79bf2ea4cf65431dccb57cb2a44528c284645a1

commit c79bf2ea4cf65431dccb57cb2a44528c284645a1
Author: Max Moroz <mmoroz@chromium.org>
Date: Wed Sep 26 16:53:42 2018

Clang scripts: package only "fuzzer_no_main" runtime.

This requires that fuzz targets use "-fsanitize=fuzzer-no-link"
instead of "-fsanitize=fuzzer". All Chromium fuzz targets should
do this already; projects rolling in this change need to change
from the latter to the former.

Removes 1.7MB library on Linux, 1.5MB on Mac, 7.7MB on Windows

Bug:  870331 
Change-Id: I124207477d0e8338f0502a794200edcd5102bd45
Reviewed-on: https://chromium-review.googlesource.com/1244802
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Jonathan Metzman <metzman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594350}
[modify] https://crrev.com/c79bf2ea4cf65431dccb57cb2a44528c284645a1/tools/clang/scripts/package.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d7b595bcb39c11385b6b1c6f97ad10571e389236

commit d7b595bcb39c11385b6b1c6f97ad10571e389236
Author: Max Moroz <mmoroz@chromium.org>
Date: Fri Nov 02 13:54:58 2018

Clang package: bundle "ubsan_standalone*" isntead of "ubsan*" libraries.

Apparently there also is ubsan_minimal runtime which we do not use:
https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html#minimal-runtime.

It's fairy small though:

20K	libclang_rt.ubsan_minimal-i386.a
20K	libclang_rt.ubsan_minimal-i386.so
24K	libclang_rt.ubsan_minimal-x86_64.a
4.0K	libclang_rt.ubsan_minimal-x86_64.a.syms
20K	libclang_rt.ubsan_minimal-x86_64.so


Bug:  870331 
Change-Id: I280fa27fce61095bffe5e91fed92245c75d051db
Reviewed-on: https://chromium-review.googlesource.com/c/1313756
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604908}
[modify] https://crrev.com/d7b595bcb39c11385b6b1c6f97ad10571e389236/tools/clang/scripts/package.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/500b4b174e5a872bbc9c437e73b29f22f1443fcc

commit 500b4b174e5a872bbc9c437e73b29f22f1443fcc
Author: Max Moroz <mmoroz@chromium.org>
Date: Mon Nov 12 16:53:28 2018

Clean up LLVM bundle package: don't use wildcards and exclude unneeded libs.

Hopefully this won't break too many things. Libraries removed:

- Linux: removed ~5.5MB from ~24.5MB of libs (excluding Android libs):
1.5M	libclang_rt.asan-i386.so
4.0K	libclang_rt.asan-preinit-i386.a
1.5M	libclang_rt.asan-x86_64.so
4.0K	libclang_rt.asan-preinit-x86_64.a
36K	libclang_rt.hwasan_cxx-x86_64.a
4.0K	libclang_rt.hwasan_cxx-x86_64.a.syms
1.4M	libclang_rt.hwasan-x86_64.a
4.0K	libclang_rt.hwasan-x86_64.a.syms
388K	libclang_rt.hwasan-x86_64.so
352K	libclang_rt.ubsan_standalone-i386.so
332K	libclang_rt.ubsan_standalone-x86_64.so

- Darwin: removed ~3MB from ~9MB of libs
1.5M	libclang_rt.fuzzer_no_main_ios.a
1.6M	libclang_rt.fuzzer_no_main_iossim.a

- Windows: (insignificant) removed ~50KB from ~28MB of libs
48094	clang_rt.asan-preinit-i386.lib
892	clang_rt.asan-preinit-x86_64.lib

Bug:  870331 
Change-Id: I0ccf1310b2ab5bde6d514a31b2c5ba7eb2844401
Reviewed-on: https://chromium-review.googlesource.com/c/1315361
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Reid Kleckner <rnk@chromium.org>
Reviewed-by: Jonathan Metzman <metzman@chromium.org>
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607265}
[modify] https://crrev.com/500b4b174e5a872bbc9c437e73b29f22f1443fcc/tools/clang/scripts/package.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/29a3a80a284ce7fb6fefbbeb6171945006b52e93

commit 29a3a80a284ce7fb6fefbbeb6171945006b52e93
Author: Hans Wennborg <hans@chromium.org>
Date: Fri Nov 16 14:56:41 2018

Roll clang 346388-1:346388-3

This picks up package.py changes #607265 and #608413. It does not change
the version of clang.

It also includes a crazy workaround for msys binaries (in our case
find.exe and mv.exe, used by lit tests) crashing during some unknown
chrome infra problem (see last bug).

Bug:  870331 ,  905289 
Change-Id: Ic1d9fa64d6fcd4b590139c9343bed5bbe4d3faa3
Reviewed-on: https://chromium-review.googlesource.com/c/1337614
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Reid Kleckner <rnk@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608776}
[modify] https://crrev.com/29a3a80a284ce7fb6fefbbeb6171945006b52e93/tools/clang/scripts/package.py
[modify] https://crrev.com/29a3a80a284ce7fb6fefbbeb6171945006b52e93/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/83630c9e56e1b089c4981608b41f6d2cd83206b5

commit 83630c9e56e1b089c4981608b41f6d2cd83206b5
Author: Reid Kleckner <rnk@chromium.org>
Date: Fri Nov 16 23:49:20 2018

Revert "Roll clang 346388-1:346388-3"

This reverts commit 29a3a80a284ce7fb6fefbbeb6171945006b52e93.

Reason for revert:
We still need to package asan for i686-android: https://crbug.com/906246

Original change's description:
> Roll clang 346388-1:346388-3
> 
> This picks up package.py changes #607265 and #608413. It does not change
> the version of clang.
> 
> It also includes a crazy workaround for msys binaries (in our case
> find.exe and mv.exe, used by lit tests) crashing during some unknown
> chrome infra problem (see last bug).
> 
> Bug:  870331 ,  905289 
> Change-Id: Ic1d9fa64d6fcd4b590139c9343bed5bbe4d3faa3
> Reviewed-on: https://chromium-review.googlesource.com/c/1337614
> Commit-Queue: Hans Wennborg <hans@chromium.org>
> Reviewed-by: Max Moroz <mmoroz@chromium.org>
> Reviewed-by: Reid Kleckner <rnk@chromium.org>
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#608776}

TBR=thakis@chromium.org,hans@chromium.org,rnk@chromium.org,mmoroz@chromium.org

Change-Id: I225d64bd4e166c0150d63cfa7ab0bad7e0dd92f7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug:  870331 ,  905289 , 906246
Reviewed-on: https://chromium-review.googlesource.com/c/1340836
Reviewed-by: Reid Kleckner <rnk@chromium.org>
Commit-Queue: Reid Kleckner <rnk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609028}
[modify] https://crrev.com/83630c9e56e1b089c4981608b41f6d2cd83206b5/tools/clang/scripts/package.py
[modify] https://crrev.com/83630c9e56e1b089c4981608b41f6d2cd83206b5/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3e3b34828c23ab8d66267c9d9fccf79fd7324693

commit 3e3b34828c23ab8d66267c9d9fccf79fd7324693
Author: Max Moroz <mmoroz@chromium.org>
Date: Tue Nov 20 01:22:07 2018

Clang scripts: reland workaround for msys binaries by hans@ from https://crrev.com/c/1337614.

Bug:  870331 ,  905289 
Change-Id: I4c5decd8b299d64d2b6c302bcd0049f8f9581f48
Reviewed-on: https://chromium-review.googlesource.com/c/1343258
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609544}
[modify] https://crrev.com/3e3b34828c23ab8d66267c9d9fccf79fd7324693/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c03fc8e7bfcf61e51114d9daaf9628887a8f170c

commit c03fc8e7bfcf61e51114d9daaf9628887a8f170c
Author: Max Moroz <mmoroz@chromium.org>
Date: Wed Nov 21 16:21:16 2018

Roll clang 346388-1:346388-4.

Ran `tools/clang/scripts/upload_revision.py 346388 4`.

Bug:  870331 
Change-Id: Ie2ebb3aa52bc757f4a0680cdbf8f060a030ce9a6
Reviewed-on: https://chromium-review.googlesource.com/c/1344209
Reviewed-by: Hans Wennborg <hans@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610096}
[modify] https://crrev.com/c03fc8e7bfcf61e51114d9daaf9628887a8f170c/tools/clang/scripts/update.py

Keeping this issue open for a little while in case anything important got deleted.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8e4125b5c6cc12bfd1ebd19e1b3b84edadcf3f55

commit 8e4125b5c6cc12bfd1ebd19e1b3b84edadcf3f55
Author: Gayane Petrosyan <gayane@chromium.org>
Date: Wed Nov 21 19:00:49 2018

Revert "Roll clang 346388-1:346388-4."

This reverts commit c03fc8e7bfcf61e51114d9daaf9628887a8f170c.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Roll clang 346388-1:346388-4.
> 
> Ran `tools/clang/scripts/upload_revision.py 346388 4`.
> 
> Bug:  870331 
> Change-Id: Ie2ebb3aa52bc757f4a0680cdbf8f060a030ce9a6
> Reviewed-on: https://chromium-review.googlesource.com/c/1344209
> Reviewed-by: Hans Wennborg <hans@chromium.org>
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Commit-Queue: Hans Wennborg <hans@chromium.org>
> Commit-Queue: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#610096}

TBR=thakis@chromium.org,hans@chromium.org,rnk@chromium.org,mmoroz@chromium.org

Change-Id: Ica508f221abd3f53dee66eb3f1937773c8947d27
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug:  870331 
Reviewed-on: https://chromium-review.googlesource.com/c/1347104
Reviewed-by: Gayane Petrosyan <gayane@chromium.org>
Commit-Queue: Gayane Petrosyan <gayane@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610111}
[modify] https://crrev.com/8e4125b5c6cc12bfd1ebd19e1b3b84edadcf3f55/tools/clang/scripts/update.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/040c80644f3669c95194f225a73164c45d27b872

commit 040c80644f3669c95194f225a73164c45d27b872
Author: Max Moroz <mmoroz@chromium.org>
Date: Thu Nov 22 00:32:00 2018

Clang scripts: package ubsan_standalone runtime for Android on ARM and AArch64.

Bug: 906129,  870331 
Change-Id: I19b7ceb187cfd1e6a28a808005606311bc4c96cc
Reviewed-on: https://chromium-review.googlesource.com/c/1347691
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610271}
[modify] https://crrev.com/040c80644f3669c95194f225a73164c45d27b872/tools/clang/scripts/package.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/cd145051149fc2f01335591e00e64ad9398f8569

commit cd145051149fc2f01335591e00e64ad9398f8569
Author: Max Moroz <mmoroz@chromium.org>
Date: Tue Nov 27 18:39:05 2018

Roll clang 346388-1:346388-5.

Ran `tools/clang/scripts/upload_revision.py 346388 5`.

Bug:  870331 
Change-Id: Id09c926a34194487757e641283f63fb63a614436
Reviewed-on: https://chromium-review.googlesource.com/c/1351029
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Hans Wennborg <hans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611214}
[modify] https://crrev.com/cd145051149fc2f01335591e00e64ad9398f8569/tools/clang/scripts/update.py

Looks like this can be closed now. The final result is not too significant compared to the total size of the bundle, but at least I got rid of some redundant libraries and cleaned up the packaging code a bit.

Linux$ du -hs *
254M	346388-1
249M	346388-5
77M	Linux_x64%2Fclang-346388-1.tar
75M	Linux_x64%2Fclang-346388-5.tar

Darwin$ du -hs *
144M	346388-1
141M	346388-5
45M	Mac%2Fclang-346388-1.tar
44M	Mac%2Fclang-346388-5.tar

Windows$ du -hs *
208M	346388-1
208M	346388-5
68M	Win%2Fclang-346388-1.tar
68M	Win%2Fclang-346388-5.tar

(the files removed on Windows were just tens of KBs).

The package.py cleanup is really nice, thanks for pushing this through.

Thanks for all the help Hans, Nico and Reid!

+1, thanks much for doing this :-)