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_
13 #include "lldb/Target/ABI.h"
14 #include "lldb/lldb-private.h"
16 class ABISysV_arm : public lldb_private::ABI {
18 ~ABISysV_arm() override = default;
20 size_t GetRedZoneSize() const override;
22 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
23 lldb::addr_t func_addr, 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 CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
36 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
38 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
40 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
41 // Make sure the stack call frame addresses are are 4 byte aligned
42 if (cfa & (4ull - 1ull))
43 return false; // Not 4 byte aligned
45 return false; // Zero is not a valid stack address
49 bool CodeAddressIsValid(lldb::addr_t pc) override {
50 // Just make sure the address is a valid 32 bit address. Bit zero
51 // might be set due to Thumb function calls, so don't enforce 2 byte
53 return pc <= UINT32_MAX;
56 lldb::addr_t FixCodeAddress(lldb::addr_t pc) override {
57 // ARM uses bit zero to signify a code address is thumb, so we must
58 // strip bit zero in any code addresses.
59 return pc & ~(lldb::addr_t)1;
62 const lldb_private::RegisterInfo *
63 GetRegisterInfoArray(uint32_t &count) override;
65 bool IsArmHardFloat(lldb_private::Thread &thread) const;
67 //------------------------------------------------------------------
69 //------------------------------------------------------------------
71 static void Initialize();
73 static void Terminate();
75 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
77 static lldb_private::ConstString GetPluginNameStatic();
79 //------------------------------------------------------------------
80 // PluginInterface protocol
81 //------------------------------------------------------------------
83 lldb_private::ConstString GetPluginName() override;
85 uint32_t GetPluginVersion() override;
89 GetReturnValueObjectImpl(lldb_private::Thread &thread,
90 lldb_private::CompilerType &ast_type) const override;
93 ABISysV_arm(lldb::ProcessSP process_sp) : lldb_private::ABI(process_sp) {
94 // Call CreateInstance instead.
98 #endif // liblldb_ABISysV_arm_h_