1 //===-- RegisterContextLinux_s390x.cpp ------------------------------------===//
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 #include "RegisterContextLinux_s390x.h"
10 #include "RegisterContextPOSIX_s390x.h"
11 
12 using namespace lldb_private;
13 using namespace lldb;
14 
15 // Include RegisterInfos_s390x to declare our g_register_infos_s390x structure.
16 #define DECLARE_REGISTER_INFOS_S390X_STRUCT
17 #include "RegisterInfos_s390x.h"
18 #undef DECLARE_REGISTER_INFOS_S390X_STRUCT
19 
20 static const RegisterInfo *GetRegisterInfoPtr(const ArchSpec &target_arch) {
21   switch (target_arch.GetMachine()) {
22   case llvm::Triple::systemz:
23     return g_register_infos_s390x;
24   default:
25     assert(false && "Unhandled target architecture.");
26     return nullptr;
27   }
28 }
29 
30 static uint32_t GetRegisterInfoCount(const ArchSpec &target_arch) {
31   switch (target_arch.GetMachine()) {
32   case llvm::Triple::systemz:
33     return k_num_registers_s390x;
34   default:
35     assert(false && "Unhandled target architecture.");
36     return 0;
37   }
38 }
39 
40 static uint32_t GetUserRegisterInfoCount(const ArchSpec &target_arch) {
41   switch (target_arch.GetMachine()) {
42   case llvm::Triple::systemz:
43     return k_num_user_registers_s390x + k_num_linux_registers_s390x;
44   default:
45     assert(false && "Unhandled target architecture.");
46     return 0;
47   }
48 }
49 
50 RegisterContextLinux_s390x::RegisterContextLinux_s390x(
51     const ArchSpec &target_arch)
52     : lldb_private::RegisterInfoInterface(target_arch),
53       m_register_info_p(GetRegisterInfoPtr(target_arch)),
54       m_register_info_count(GetRegisterInfoCount(target_arch)),
55       m_user_register_count(GetUserRegisterInfoCount(target_arch)) {}
56 
57 const RegisterInfo *RegisterContextLinux_s390x::GetRegisterInfo() const {
58   return m_register_info_p;
59 }
60 
61 uint32_t RegisterContextLinux_s390x::GetRegisterCount() const {
62   return m_register_info_count;
63 }
64 
65 uint32_t RegisterContextLinux_s390x::GetUserRegisterCount() const {
66   return m_user_register_count;
67 }
68 
69 size_t RegisterContextLinux_s390x::GetGPRSize() const { return 0; }
70