1 files changed, 129 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/include/lldb/Target/UnixSignals.h b/contrib/llvm-project/lldb/include/lldb/Target/UnixSignals.h
new file mode 100644
index 000000000000..120ffdd7ae25
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+++ b/contrib/llvm-project/lldb/include/lldb/Target/UnixSignals.h
@@ -0,0 +1,129 @@
+//===-- UnixSignals.h -------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef lldb_UnixSignals_h_
+#define lldb_UnixSignals_h_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "lldb/Utility/ConstString.h"
+#include "lldb/lldb-private.h"
+#include "llvm/ADT/Optional.h"
+
+namespace lldb_private {
+
+class UnixSignals {
+public:
+  static lldb::UnixSignalsSP Create(const ArchSpec &arch);
+  static lldb::UnixSignalsSP CreateForHost();
+
+  // Constructors and Destructors
+  UnixSignals();
+
+  virtual ~UnixSignals();
+
+  const char *GetSignalAsCString(int32_t signo) const;
+
+  bool SignalIsValid(int32_t signo) const;
+
+  int32_t GetSignalNumberFromName(const char *name) const;
+
+  const char *GetSignalInfo(int32_t signo, bool &should_suppress,
+                            bool &should_stop, bool &should_notify) const;
+
+  bool GetShouldSuppress(int32_t signo) const;
+
+  bool SetShouldSuppress(int32_t signo, bool value);
+
+  bool SetShouldSuppress(const char *signal_name, bool value);
+
+  bool GetShouldStop(int32_t signo) const;
+
+  bool SetShouldStop(int32_t signo, bool value);
+  bool SetShouldStop(const char *signal_name, bool value);
+
+  bool GetShouldNotify(int32_t signo) const;
+
+  bool SetShouldNotify(int32_t signo, bool value);
+
+  bool SetShouldNotify(const char *signal_name, bool value);
+
+  // These provide an iterator through the signals available on this system.
+  // Call GetFirstSignalNumber to get the first entry, then iterate on
+  // GetNextSignalNumber till you get back LLDB_INVALID_SIGNAL_NUMBER.
+  int32_t GetFirstSignalNumber() const;
+
+  int32_t GetNextSignalNumber(int32_t current_signal) const;
+
+  int32_t GetNumSignals() const;
+
+  int32_t GetSignalAtIndex(int32_t index) const;
+
+  ConstString GetShortName(ConstString name) const;
+
+  // We assume that the elements of this object are constant once it is
+  // constructed, since a process should never need to add or remove symbols as
+  // it runs.  So don't call these functions anywhere but the constructor of
+  // your subclass of UnixSignals or in your Process Plugin's GetUnixSignals
+  // method before you return the UnixSignal object.
+
+  void AddSignal(int signo, const char *name, bool default_suppress,
+                 bool default_stop, bool default_notify,
+                 const char *description, const char *alias = nullptr);
+
+  void RemoveSignal(int signo);
+
+  // Returns a current version of the data stored in this class. Version gets
+  // incremented each time Set... method is called.
+  uint64_t GetVersion() const;
+
+  // Returns a vector of signals that meet criteria provided in arguments. Each
+  // should_[suppress|stop|notify] flag can be None  - no filtering by this
+  // flag true  - only signals that have it set to true are returned false -
+  // only signals that have it set to true are returned
+  std::vector<int32_t> GetFilteredSignals(llvm::Optional<bool> should_suppress,
+                                          llvm::Optional<bool> should_stop,
+                                          llvm::Optional<bool> should_notify);
+
+protected:
+  // Classes that inherit from UnixSignals can see and modify these
+
+  struct Signal {
+    ConstString m_name;
+    ConstString m_alias;
+    std::string m_description;
+    bool m_suppress : 1, m_stop : 1, m_notify : 1;
+
+    Signal(const char *name, bool default_suppress, bool default_stop,
+           bool default_notify, const char *description, const char *alias);
+
+    ~Signal() {}
+  };
+
+  virtual void Reset();
+
+  typedef std::map<int32_t, Signal> collection;
+
+  collection m_signals;
+
+  // This version gets incremented every time something is changing in this
+  // class, including when we call AddSignal from the constructor. So after the
+  // object is constructed m_version is going to be > 0 if it has at least one
+  // signal registered in it.
+  uint64_t m_version = 0;
+
+  // GDBRemote signals need to be copyable.
+  UnixSignals(const UnixSignals &rhs);
+
+  const UnixSignals &operator=(const UnixSignals &rhs) = delete;
+};
+
+} // Namespace lldb
+#endif // lldb_UnixSignals_h_