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ABISysV_arm.h
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1//===-- ABISysV_arm.h ----------------------------------------*- C++ -*-===//
2//
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
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H
10#define LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H
11
12#include "lldb/Target/ABI.h"
13#include "lldb/lldb-private.h"
14
16public:
17 ~ABISysV_arm() override = default;
18
19 size_t GetRedZoneSize() const override;
20
22 lldb::addr_t func_addr, lldb::addr_t returnAddress,
23 llvm::ArrayRef<lldb::addr_t> args) const override;
24
26 lldb_private::ValueList &values) const override;
27
29 SetReturnValueObject(lldb::StackFrameSP &frame_sp,
30 lldb::ValueObjectSP &new_value) override;
31
32 bool
34
35 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
36
37 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
38
40 // Make sure the stack call frame addresses are are 4 byte aligned
41 if (cfa & (4ull - 1ull))
42 return false; // Not 4 byte aligned
43 if (cfa == 0)
44 return false; // Zero is not a valid stack address
45 return true;
46 }
47
49 // Just make sure the address is a valid 32 bit address. Bit zero
50 // might be set due to Thumb function calls, so don't enforce 2 byte
51 // alignment
52 return pc <= UINT32_MAX;
53 }
54
56 // ARM uses bit zero to signify a code address is thumb, so we must
57 // strip bit zero in any code addresses.
58 return pc & ~(lldb::addr_t)1;
59 }
60
61 const lldb_private::RegisterInfo *
62 GetRegisterInfoArray(uint32_t &count) override;
63
64 bool IsArmHardFloat(lldb_private::Thread &thread) const;
65
66 // Static Functions
67
68 static void Initialize();
69
70 static void Terminate();
71
72 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
73
74 static llvm::StringRef GetPluginNameStatic() { return "SysV-arm"; }
75
76 // PluginInterface protocol
77
78 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
79
80protected:
81 lldb::ValueObjectSP
83 lldb_private::CompilerType &ast_type) const override;
84
85private:
86 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.
87};
88
89#endif // LLDB_SOURCE_PLUGINS_ABI_ARM_ABISYSV_ARM_H
bool GetArgumentValues(lldb_private::Thread &thread, lldb_private::ValueList &values) const override
bool CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override
bool IsArmHardFloat(lldb_private::Thread &thread) const
~ABISysV_arm() override=default
lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread, lldb_private::CompilerType &ast_type) const override
bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override
static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch)
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
lldb::addr_t FixCodeAddress(lldb::addr_t pc) override
Some targets might use bits in a code address to indicate a mode switch.
Definition: ABISysV_arm.h:55
static void Initialize()
lldb_private::Status SetReturnValueObject(lldb::StackFrameSP &frame_sp, lldb::ValueObjectSP &new_value) override
bool CodeAddressIsValid(lldb::addr_t pc) override
Definition: ABISysV_arm.h:48
static llvm::StringRef GetPluginNameStatic()
Definition: ABISysV_arm.h:74
bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override
const lldb_private::RegisterInfo * GetRegisterInfoArray(uint32_t &count) override
llvm::StringRef GetPluginName() override
Definition: ABISysV_arm.h:78
static void Terminate()
bool CallFrameAddressIsValid(lldb::addr_t cfa) override
Definition: ABISysV_arm.h:39
size_t GetRedZoneSize() const override
An architecture specification class.
Definition: ArchSpec.h:32
Generic representation of a type in a programming language.
Definition: CompilerType.h:36
An error handling class.
Definition: Status.h:44
#define UINT32_MAX
Definition: lldb-defines.h:19
uint64_t addr_t
Definition: lldb-types.h:83