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 
28 static const DNBArchPluginInfo *
29 GetArchInfo ()
30 {
31     CPUPluginInfoMap::const_iterator pos = g_arch_plugins.find(g_current_cpu_type);
32     if (pos != g_arch_plugins.end())
33         return &pos->second;
34     return NULL;
35 }
36 
37 
38 uint32_t
39 DNBArchProtocol::GetArchitecture ()
40 {
41     return g_current_cpu_type;
42 }
43 
44 bool
45 DNBArchProtocol::SetArchitecture (uint32_t cpu_type)
46 {
47     g_current_cpu_type = cpu_type;
48     bool result = g_arch_plugins.find(g_current_cpu_type) != g_arch_plugins.end();
49     DNBLogThreadedIf (LOG_PROCESS, "DNBArchProtocol::SetDefaultArchitecture (cpu_type=0x%8.8x) => %i", cpu_type, result);
50     return result;
51 }
52 
53 void
54 DNBArchProtocol::RegisterArchPlugin (const DNBArchPluginInfo &arch_info)
55 {
56     if (arch_info.cpu_type)
57         g_arch_plugins[arch_info.cpu_type] = arch_info;
58 }
59 
60 uint32_t
61 DNBArchProtocol::GetRegisterCPUType ()
62 {
63     const DNBArchPluginInfo *arch_info = GetArchInfo ();
64     if (arch_info)
65         return arch_info->cpu_type;
66     return 0;
67 }
68 
69 const DNBRegisterSetInfo *
70 DNBArchProtocol::GetRegisterSetInfo (nub_size_t *num_reg_sets)
71 {
72     const DNBArchPluginInfo *arch_info = GetArchInfo ();
73     if (arch_info)
74         return arch_info->GetRegisterSetInfo (num_reg_sets);
75     *num_reg_sets = 0;
76     return NULL;
77 }
78 
79 DNBArchProtocol *
80 DNBArchProtocol::Create (MachThread *thread)
81 {
82     const DNBArchPluginInfo *arch_info = GetArchInfo ();
83     if (arch_info)
84         return arch_info->Create (thread);
85     return NULL;
86 
87 }
88 
89 const uint8_t *
90 DNBArchProtocol::GetBreakpointOpcode (nub_size_t byte_size)
91 {
92     const DNBArchPluginInfo *arch_info = GetArchInfo ();
93     if (arch_info)
94         return arch_info->GetBreakpointOpcode (byte_size);
95     return NULL;
96 }
97 
98