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Commit cbf7c466 authored by yidong zhang's avatar yidong zhang
Browse files

Avoid using thread cache in unwinder. 



Using  thread cache will cause SIGSEGV for 32bit+kernel4.9 device.

Bug: 190579082
Bug: 189803009

Test: run cts -m CtsSeccompHostTestCases
Change-Id: I47b13d02674aadbacd8dac36d8382eed0885413c
Signed-off-by: default avataryidong zhang <yidong.zhang@amlogic.com>
parent 56a05e1f

debuggerd/libdebuggerd/tombstone.cpp

+3 −0
Original line number Diff line number Diff line
@@ -593,6 +593,9 @@ void engrave_tombstone_ucontext(int tombstone_fd, int proto_fd, uint64_t abort_m 
  };



  unwindstack::UnwinderFromPid unwinder(kMaxFrames, pid, unwindstack::Regs::CurrentArch());

  auto process_memory =

      unwindstack::Memory::CreateProcessMemoryCached(getpid());

  unwinder.SetProcessMemory(process_memory);

  if (!unwinder.Init()) {

    async_safe_fatal("failed to init unwinder object");

  }