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ASF subversion and git services commented on IMPALA-5031: --------------------------------------------------------- Commit 48d1d2d7421d668f8dd5142b05395e2b163f621b in impala's branch refs/heads/master from [~jbapple] [ https://git-wip-us.apache.org/repos/asf?p=impala.git;h=48d1d2d ] IMPALA-5031: method calls on NULL are not UBSAN-clean According to [expr.post] in the C++14 standard, a call to a member function like a->b() is interpreted as (a->b)(). In other words, the dereferencing is done separately from the call. This makes calling member functions on nullptr undefined behavior, since the dereference invokes undefined behavior. Change-Id: I8b38cb1ebba02fc163534ffcc95e4ebe41cbb115 Reviewed-on: http://gerrit.cloudera.org:8080/11950 Reviewed-by: Jim Apple <jbapple-imp...@apache.org> Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com> > UBSAN clean and method for testing UBSAN cleanliness > ---------------------------------------------------- > > Key: IMPALA-5031 > URL: https://issues.apache.org/jira/browse/IMPALA-5031 > Project: IMPALA > Issue Type: Task > Components: Backend, Infrastructure > Affects Versions: Impala 2.9.0 > Reporter: Jim Apple > Assignee: Jim Apple > Priority: Minor > > http://releases.llvm.org/3.8.0/tools/clang/docs/UndefinedBehaviorSanitizer.html > builds are supported after https://gerrit.cloudera.org/#/c/6186/, but > Impala's test suite triggers many errors under UBSAN. Those errors should be > fixed and then there should be a way to run the test suite under UBSAN and > fail if there were any errors detected. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org