1 files changed, 89 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Plugins/ABI/ARM/ABISysV_arm.h b/contrib/llvm-project/lldb/source/Plugins/ABI/ARM/ABISysV_arm.h
new file mode 100644
index 000000000000..65bc3e0b6298
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Plugins/ABI/ARM/ABISysV_arm.h
@@ -0,0 +1,89 @@
+//===-- ABISysV_arm.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_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H
+#define LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H
+
+#include "lldb/Target/ABI.h"
+#include "lldb/lldb-private.h"
+
+class ABISysV_arm : public lldb_private::RegInfoBasedABI {
+public:
+  ~ABISysV_arm() override = default;
+
+  size_t GetRedZoneSize() const override;
+
+  bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
+                          lldb::addr_t func_addr, lldb::addr_t returnAddress,
+                          llvm::ArrayRef<lldb::addr_t> args) const override;
+
+  bool GetArgumentValues(lldb_private::Thread &thread,
+                         lldb_private::ValueList &values) const override;
+
+  lldb_private::Status
+  SetReturnValueObject(lldb::StackFrameSP &frame_sp,
+                       lldb::ValueObjectSP &new_value) override;
+
+  bool
+  CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
+
+  bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
+
+  bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
+
+  bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
+    // Make sure the stack call frame addresses are 4 byte aligned
+    if (cfa & (4ull - 1ull))
+      return false; // Not 4 byte aligned
+    if (cfa == 0)
+      return false; // Zero is not a valid stack address
+    return true;
+  }
+
+  bool CodeAddressIsValid(lldb::addr_t pc) override {
+    // Just make sure the address is a valid 32 bit address. Bit zero
+    // might be set due to Thumb function calls, so don't enforce 2 byte
+    // alignment
+    return pc <= UINT32_MAX;
+  }
+
+  lldb::addr_t FixCodeAddress(lldb::addr_t pc) override {
+    // ARM uses bit zero to signify a code address is thumb, so we must
+    // strip bit zero in any code addresses.
+    return pc & ~(lldb::addr_t)1;
+  }
+
+  const lldb_private::RegisterInfo *
+  GetRegisterInfoArray(uint32_t &count) override;
+
+  bool IsArmHardFloat(lldb_private::Thread &thread) const;
+
+  // Static Functions
+
+  static void Initialize();
+
+  static void Terminate();
+
+  static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
+
+  static llvm::StringRef GetPluginNameStatic() { return "SysV-arm"; }
+
+  // PluginInterface protocol
+
+  llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
+
+protected:
+  lldb::ValueObjectSP
+  GetReturnValueObjectImpl(lldb_private::Thread &thread,
+                           lldb_private::CompilerType &ast_type) const override;
+
+private:
+  using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.
+};
+
+#endif // LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H