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 bool
38 CreateFunctionEntryUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
39
40 bool CreateDefaultUnwindPlan(lldb_private::UnwindPlan &unwind_plan) override;
41
42 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
43
44 bool IsSoftFloat(uint32_t fp_flag) const;
45
46 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
47 // Make sure the stack call frame addresses are 8 byte aligned
48 if (cfa & (8ull - 1ull))
49 return false; // Not 8 byte aligned
50 if (cfa == 0)
51 return false; // Zero is not a valid stack address
52 return true;
53 }
54
55 bool CodeAddressIsValid(lldb::addr_t pc) override {
56 // Just make sure the address is a valid 32 bit address. Bit zero
57 // might be set due to MicroMIPS function calls, so don't enforce alignment.
58 return (pc <= UINT32_MAX);
59 }
60
61 const lldb_private::RegisterInfo *
62 GetRegisterInfoArray(uint32_t &count) override;
63
64 // Static Functions
65
66 static void Initialize();
67
68 static void Terminate();
69
70 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
71
72 static llvm::StringRef GetPluginNameStatic() { return "sysv-mips"; }
73
74 // PluginInterface protocol
75
76 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
77
78protected:
79 void CreateRegisterMapIfNeeded();
80
81 lldb::ValueObjectSP
82 GetReturnValueObjectSimple(lldb_private::Thread &thread,
83 lldb_private::CompilerType &ast_type) const;
84
85 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);
86
87private:
88 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.
89};
90
91#endif // LLDB_SOURCE_PLUGINS_ABI_MIPS_ABISYSV_MIPS_H
92

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