forked from OSchip/llvm-project
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
//===-- SingleStepCheck.h ------------------------------------- -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_SingleStepCheck_H_
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#define liblldb_SingleStepCheck_H_
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namespace lldb_private {
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namespace process_linux {
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namespace impl {
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extern bool SingleStepWorkaroundNeeded();
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}
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// arm64 linux had a bug which prevented single-stepping and watchpoints from
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// working on non-boot
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// cpus, due to them being incorrectly initialized after coming out of suspend.
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// This issue is
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// particularly affecting android M, which uses suspend ("doze mode") quite
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// aggressively. This
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// code detects that situation and makes single-stepping work by doing all the
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// step operations on
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// the boot cpu.
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//
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// The underlying issue has been fixed in android N and linux 4.4. This code can
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// be removed once
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// these systems become obsolete.
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inline bool SingleStepWorkaroundNeeded() {
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static bool value = impl::SingleStepWorkaroundNeeded();
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return value;
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}
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} // end namespace process_linux
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} // end namespace lldb_private
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#endif // #ifndef liblldb_SingleStepCheck_H_
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