Commit 3b113229 authored by Alexander Bulekov's avatar Alexander Bulekov Committed by Stefan Hajnoczi
Browse files

fuzz: add mangled object name to linker script 



Previously, we relied on "FuzzerTracePC*(.bss*)" to place libfuzzer's
fuzzer::TPC object into our contiguous shared-memory region. This does
not work for some libfuzzer builds, so this addition identifies the
region by its mangled name: *(.bss._ZN6fuzzer3TPCE);

Signed-off-by: default avatarAlexander Bulekov <alxndr@bu.edu>
Reviewed-by: default avatarDarren Kenny <darren.kenny@oracle.com>
Message-id: 20200512030133.29896-4-alxndr@bu.edu
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 6851803a

tests/qtest/fuzz/fork_fuzz.ld

+5 −0
Original line number Diff line number Diff line
@@ -28,6 +28,11 @@ SECTIONS 


      /* Internal Libfuzzer TracePC object which contains the ValueProfileMap */

      FuzzerTracePC*(.bss*);

      /*

       * In case the above line fails, explicitly specify the (mangled) name of

       * the object we care about

       */

       *(.bss._ZN6fuzzer3TPCE);

  }

  .data.fuzz_end : ALIGN(4K)

  {