1 //===-- ABISysV_s390x.h -----------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #ifndef liblldb_ABISysV_s390x_h_
10 #define liblldb_ABISysV_s390x_h_
12 #include "lldb/Target/ABI.h"
13 #include "lldb/lldb-private.h"
15 class ABISysV_s390x : public lldb_private::ABI {
17 ~ABISysV_s390x() override = default;
19 size_t GetRedZoneSize() const override;
21 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
22 lldb::addr_t functionAddress,
23 lldb::addr_t returnAddress,
24 llvm::ArrayRef<lldb::addr_t> args) const override;
26 bool GetArgumentValues(lldb_private::Thread &thread,
27 lldb_private::ValueList &values) const override;
30 SetReturnValueObject(lldb::StackFrameSP &frame_sp,
31 lldb::ValueObjectSP &new_value) override;
34 GetReturnValueObjectImpl(lldb_private::Thread &thread,
35 lldb_private::CompilerType &type) const override;
38 CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
40 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
42 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
44 bool GetFallbackRegisterLocation(
45 const lldb_private::RegisterInfo *reg_info,
46 lldb_private::UnwindPlan::Row::RegisterLocation &unwind_regloc) override;
48 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
49 // Make sure the stack call frame addresses are 8 byte aligned
50 if (cfa & (8ull - 1ull))
51 return false; // Not 8 byte aligned
53 return false; // Zero is not a valid stack address
57 bool CodeAddressIsValid(lldb::addr_t pc) override {
58 // Code addressed must be 2 byte aligned
59 return (pc & 1ull) == 0;
62 const lldb_private::RegisterInfo *
63 GetRegisterInfoArray(uint32_t &count) override;
67 static void Initialize();
69 static void Terminate();
71 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
73 static lldb_private::ConstString GetPluginNameStatic();
75 // PluginInterface protocol
77 lldb_private::ConstString GetPluginName() override;
79 uint32_t GetPluginVersion() override;
82 void CreateRegisterMapIfNeeded();
85 GetReturnValueObjectSimple(lldb_private::Thread &thread,
86 lldb_private::CompilerType &ast_type) const;
88 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);
91 ABISysV_s390x(lldb::ProcessSP process_sp) : lldb_private::ABI(process_sp) {
92 // Call CreateInstance instead.
96 #endif // liblldb_ABISysV_s390x_h_