[llvm-bugs] [Bug 43226] New: libfuzzer: Document REDUCE event outputs

via llvm-bugs llvm-bugs at lists.llvm.org
Thu Sep 5 02:25:49 PDT 2019


            Bug ID: 43226
           Summary: libfuzzer: Document REDUCE event outputs
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: fuzzer
          Assignee: unassignedbugs at nondot.org
          Reporter: chfast at gmail.com
                CC: llvm-bugs at lists.llvm.org

There are some information missing from the libfuzzer documentation about the
"L:" and "REDUCE" event. See https://llvm.org/docs/LibFuzzer.html#output

1. The example is outdated.
2. The "L:" column now has 2 values (e.g. "L: 17214/25000"). I'm guessing the
second one is the length limit, but this is also provided in the "lim:" column?
3. The REDUCE event also outputs "L:" and "MS:" values, but this is
undocumented. I would especially want to know that "L:" means in case of
4. The REDUCE sometimes adds a new file to corpus (the file count increases).
Can you document why is this happening?

You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20190905/064a479c/attachment.html>

More information about the llvm-bugs mailing list