MySQL Bugs: #89961: add support for clang ubsan

Bug #89961	add support for clang ubsan
Submitted:	8 Mar 2018 12:11	Modified:	14 Mar 2018 12:29
Reporter:	Tor Didriksen	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: Compiling	Severity:	S3 (Non-critical)
Version:	8.0.6	OS:	Any
Assigned to:		CPU Architecture:	Any

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Description:
Clang needs slightly different settings for enabling SUPPRESS_UBSAN, and more stack space than GCC.
We also need to remove -fsanitize=undefined when building protoc, otherwise it dumps core.

How to repeat:
./mtr --mem --sanitize main.1st

Suggested fix:
Fix enough runtime warnings to make main.1st pass.

protoc crashing with clang -fsanitize=undefined has been reported as bug 87201

Posted by developer:
 
Fixed in 8.0.12.

Code cleanup/work was done for test suite. No changelog entry needed.

The segfault is from this protobuf issue:
https://github.com/protocolbuffers/protobuf/issues/1450

The fix can be found here: https://github.com/protocolbuffers/protobuf/commit/cf14183bcd5485b4a71541599ddce0b35eb7135...