1 //===-- DNBArch.cpp ---------------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //  Created by Greg Clayton on 6/24/07.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "DNBArch.h"
15 #include <assert.h>
16 #include <mach/mach.h>
17 
18 #include <map>
19 
20 #include "DNBLog.h"
21 
22 typedef std::map<uint32_t, DNBArchPluginInfo> CPUPluginInfoMap;
23 
24 static uint32_t g_current_cpu_type = 0;
25 CPUPluginInfoMap g_arch_plugins;
26 
27 static const DNBArchPluginInfo *GetArchInfo() {
28   CPUPluginInfoMap::const_iterator pos =
29       g_arch_plugins.find(g_current_cpu_type);
30   if (pos != g_arch_plugins.end())
31     return &pos->second;
32   return NULL;
33 }
34 
35 uint32_t DNBArchProtocol::GetArchitecture() { return g_current_cpu_type; }
36 
37 bool DNBArchProtocol::SetArchitecture(uint32_t cpu_type) {
38   g_current_cpu_type = cpu_type;
39   bool result = g_arch_plugins.find(g_current_cpu_type) != g_arch_plugins.end();
40   DNBLogThreadedIf(
41       LOG_PROCESS,
42       "DNBArchProtocol::SetDefaultArchitecture (cpu_type=0x%8.8x) => %i",
43       cpu_type, result);
44   return result;
45 }
46 
47 void DNBArchProtocol::RegisterArchPlugin(const DNBArchPluginInfo &arch_info) {
48   if (arch_info.cpu_type)
49     g_arch_plugins[arch_info.cpu_type] = arch_info;
50 }
51 
52 uint32_t DNBArchProtocol::GetRegisterCPUType() {
53   const DNBArchPluginInfo *arch_info = GetArchInfo();
54   if (arch_info)
55     return arch_info->cpu_type;
56   return 0;
57 }
58 
59 const DNBRegisterSetInfo *
60 DNBArchProtocol::GetRegisterSetInfo(nub_size_t *num_reg_sets) {
61   const DNBArchPluginInfo *arch_info = GetArchInfo();
62   if (arch_info)
63     return arch_info->GetRegisterSetInfo(num_reg_sets);
64   *num_reg_sets = 0;
65   return NULL;
66 }
67 
68 DNBArchProtocol *DNBArchProtocol::Create(MachThread *thread) {
69   const DNBArchPluginInfo *arch_info = GetArchInfo();
70   if (arch_info)
71     return arch_info->Create(thread);
72   return NULL;
73 }
74 
75 const uint8_t *DNBArchProtocol::GetBreakpointOpcode(nub_size_t byte_size) {
76   const DNBArchPluginInfo *arch_info = GetArchInfo();
77   if (arch_info)
78     return arch_info->GetBreakpointOpcode(byte_size);
79   return NULL;
80 }
81