[llvm-bugs] [Bug 39520] New: File mapping handles are leaked

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Nov 1 11:15:22 PDT 2018


            Bug ID: 39520
           Summary: File mapping handles are leaked
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: profile
          Assignee: unassignedbugs at nondot.org
          Reporter: mcastelluccio at mozilla.com
                CC: llvm-bugs at lists.llvm.org

This means that gcda files, when gcda files from a previous execution exist,
are kept open until the process terminates.
This makes it impossible to profile subset of a program execution (where you
want to flush gcda files and remove them before the beginning of the region of
interest, then flush them at the end of the region of interest).

https://reviews.llvm.org/D51974 should fix this.

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