[llvm-bugs] [Bug 39071] New: Support additional suppression

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39071

            Bug ID: 39071
           Summary: Support additional suppression
           Product: compiler-rt
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: asan
          Assignee: unassignedbugs at nondot.org
          Reporter: gareth at ignition-web.co.uk
                CC: llvm-bugs at lists.llvm.org

Checks like alloc-dealloc-mismatch currently can only be on or off. There is no
fine grain suppression ATM. 

Propose to add a few HaveStackTraceBasedSuppressions and IsStackTraceSuppressed
calls into asan_allocator.cc and possibly other places so that we can
selectively suppress problem cases.

My motivating reason for this change is to detect alloc-dealloc-mismatch in my
own codebases without detecting those within third party libraries.

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