1 //===-- ABISysV_arm.h ----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef liblldb_ABISysV_arm_h_
11 #define liblldb_ABISysV_arm_h_
15 // Other libraries and framework includes
17 #include "lldb/Target/ABI.h"
18 #include "lldb/lldb-private.h"
20 class ABISysV_arm : public lldb_private::ABI {
22 ~ABISysV_arm() override = default;
24 size_t GetRedZoneSize() const override;
26 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
27 lldb::addr_t func_addr, lldb::addr_t returnAddress,
28 llvm::ArrayRef<lldb::addr_t> args) const override;
30 bool GetArgumentValues(lldb_private::Thread &thread,
31 lldb_private::ValueList &values) const override;
34 SetReturnValueObject(lldb::StackFrameSP &frame_sp,
35 lldb::ValueObjectSP &new_value) 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 CallFrameAddressIsValid(lldb::addr_t cfa) override {
45 // Make sure the stack call frame addresses are are 4 byte aligned
46 if (cfa & (4ull - 1ull))
47 return false; // Not 4 byte aligned
49 return false; // Zero is not a valid stack address
53 bool CodeAddressIsValid(lldb::addr_t pc) override {
54 // Just make sure the address is a valid 32 bit address. Bit zero
55 // might be set due to Thumb function calls, so don't enforce 2 byte
57 return pc <= UINT32_MAX;
60 lldb::addr_t FixCodeAddress(lldb::addr_t pc) override {
61 // ARM uses bit zero to signify a code address is thumb, so we must
62 // strip bit zero in any code addresses.
63 return pc & ~(lldb::addr_t)1;
66 const lldb_private::RegisterInfo *
67 GetRegisterInfoArray(uint32_t &count) override;
69 bool IsArmHardFloat(lldb_private::Thread &thread) const;
71 //------------------------------------------------------------------
73 //------------------------------------------------------------------
75 static void Initialize();
77 static void Terminate();
79 static lldb::ABISP CreateInstance(const lldb_private::ArchSpec &arch);
81 static lldb_private::ConstString GetPluginNameStatic();
83 //------------------------------------------------------------------
84 // PluginInterface protocol
85 //------------------------------------------------------------------
87 lldb_private::ConstString GetPluginName() override;
89 uint32_t GetPluginVersion() override;
93 GetReturnValueObjectImpl(lldb_private::Thread &thread,
94 lldb_private::CompilerType &ast_type) const override;
97 ABISysV_arm() : lldb_private::ABI() {
98 // Call CreateInstance instead.
102 #endif // liblldb_ABISysV_arm_h_