1//===-- ABISysV_hexagon.h ----------------------------------------*- C++
2//-*-===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H
11#define LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H
12
13#include "lldb/Target/ABI.h"
14#include "lldb/lldb-private.h"
15
16class ABISysV_hexagon : public lldb_private::RegInfoBasedABI {
17public:
18 ~ABISysV_hexagon() override = default;
19
20 size_t GetRedZoneSize() const override;
21
22 bool PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
23 lldb::addr_t functionAddress,
24 lldb::addr_t returnAddress,
25 llvm::ArrayRef<lldb::addr_t> args) const override;
26
27 // special thread plan for GDB style non-jit function calls
28 bool
29 PrepareTrivialCall(lldb_private::Thread &thread, lldb::addr_t sp,
30 lldb::addr_t functionAddress, lldb::addr_t returnAddress,
31 llvm::Type &prototype,
32 llvm::ArrayRef<ABI::CallArgument> args) const override;
33
34 bool GetArgumentValues(lldb_private::Thread &thread,
35 lldb_private::ValueList &values) const override;
36
37 lldb_private::Status
38 SetReturnValueObject(lldb::StackFrameSP &frame_sp,
39 lldb::ValueObjectSP &new_value) override;
40
41 lldb::ValueObjectSP
42 GetReturnValueObjectImpl(lldb_private::Thread &thread,
43 lldb_private::CompilerType &type) const override;
44
45 // specialized to work with llvm IR types
46 lldb::ValueObjectSP GetReturnValueObjectImpl(lldb_private::Thread &thread,
47 llvm::Type &type) const override;
48
49 lldb::UnwindPlanSP CreateFunctionEntryUnwindPlan() override;
50
51 lldb::UnwindPlanSP CreateDefaultUnwindPlan() override;
52
53 bool RegisterIsVolatile(const lldb_private::RegisterInfo *reg_info) override;
54
55 bool CallFrameAddressIsValid(lldb::addr_t cfa) override {
56 // Make sure the stack call frame addresses are 8 byte aligned
57 if (cfa & 0x07)
58 return false; // Not 8 byte aligned
59 if (cfa == 0)
60 return false; // Zero is not a valid stack address
61 return true;
62 }
63
64 bool CodeAddressIsValid(lldb::addr_t pc) override {
65 // We have a 64 bit address space, so anything is valid as opcodes
66 // aren't fixed width...
67 return true;
68 }
69
70 const lldb_private::RegisterInfo *
71 GetRegisterInfoArray(uint32_t &count) override;
72
73 // Static Functions
74
75 static void Initialize();
76
77 static void Terminate();
78
79 static lldb::ABISP CreateInstance(lldb::ProcessSP process_sp, const lldb_private::ArchSpec &arch);
80
81 static llvm::StringRef GetPluginNameStatic() { return "sysv-hexagon"; }
82
83 // PluginInterface protocol
84
85 llvm::StringRef GetPluginName() override { return GetPluginNameStatic(); }
86
87protected:
88 void CreateRegisterMapIfNeeded();
89
90 lldb::ValueObjectSP
91 GetReturnValueObjectSimple(lldb_private::Thread &thread,
92 lldb_private::CompilerType &ast_type) const;
93
94 bool RegisterIsCalleeSaved(const lldb_private::RegisterInfo *reg_info);
95
96private:
97 using lldb_private::RegInfoBasedABI::RegInfoBasedABI; // Call CreateInstance instead.
98};
99
100#endif // LLDB_SOURCE_PLUGINS_ABI_HEXAGON_ABISYSV_HEXAGON_H
101

source code of lldb/source/Plugins/ABI/Hexagon/ABISysV_hexagon.h