1//===-- ABISysV_mips.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_MIPS_ABISYSV_MIPS_H
10#define LLDB_SOURCE_PLUGINS_ABI_MIPS_ABISYSV_MIPS_H
11
12#include "lldb/Target/ABI.h"
13#include "lldb/lldb-private.h"
14
15class ABISysV_mips : public lldb_private::RegInfoBasedABI {
16public:
17 ~ABISysV_mips() override = default;
18
19 size_t GetRedZoneSize() const override;
20
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;
25
26 bool GetArgumentValues(lldb_private::Thread &thread,
27 lldb_private::ValueList &values) const override;
28
29 lldb_private::Status
30 SetReturnValueObject(lldb::StackFrameSP &frame_sp,
31 lldb::ValueObjectSP &new_value) override;
32
33 lldb::ValueObjectSP
34 GetReturnValueObjectImpl(lldb_private::Thread &thread,
35 lldb_private::CompilerType &type) const override;
36
37 lldb::UnwindPlanSP CreateFunctionEntryUnwindPlan() override;
38
39 lldb::UnwindPlanSP CreateDefaultUnwindPlan() override;
40
41 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
42
43 bool IsSoftFloat(uint32_t fp_flag) const;
44
45 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
46 // Make sure the stack call frame addresses are 8 byte aligned
47 if (cfa & (8ull - 1ull))
48 return false; // Not 8 byte aligned
49 if (cfa == 0)
50 return false; // Zero is not a valid stack address
51 return true;
52 }
53
54 bool CodeAddressIsValid(lldb::addr_t pc) override {
55 // Just make sure the address is a valid 32 bit address. Bit zero
56 // might be set due to MicroMIPS function calls, so don't enforce alignment.
57 return (pc <= UINT32_MAX);
58 }
59
60 const lldb_private::RegisterInfo *
61 GetRegisterInfoArray(uint32_t &count) override;
62
63 // Static Functions
64
65 static void Initialize();
66
67 static void Terminate();
68
69 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
70
71 static llvm::StringRef GetPluginNameStatic() { return "sysv-mips"; }
72
73 // PluginInterface protocol
74
75 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
76
77protected:
78 void CreateRegisterMapIfNeeded();
79
80 lldb::ValueObjectSP
81 GetReturnValueObjectSimple(lldb_private::Thread &thread,
82 lldb_private::CompilerType &ast_type) const;
83
84 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);
85
86private:
87 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.
88};
89
90#endif // LLDB_SOURCE_PLUGINS_ABI_MIPS_ABISYSV_MIPS_H
91

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source code of lldb/source/Plugins/ABI/Mips/ABISysV_mips.h