1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include "sosplugin.h"
#include <dlfcn.h>
#include <string.h>
#include <string>
class sosCommand : public lldb::SBCommandPluginInterface
{
const char *m_command;
void *m_sosHandle;
public:
sosCommand(const char *command)
{
m_command = command;
m_sosHandle = NULL;
}
virtual bool
DoExecute (lldb::SBDebugger debugger,
char** arguments,
lldb::SBCommandReturnObject &result)
{
LLDBServices* services = new LLDBServices(debugger, result);
LoadSos(services);
if (m_sosHandle)
{
const char* sosCommand = m_command;
if (sosCommand == NULL)
{
if (arguments == NULL || *arguments == NULL) {
sosCommand = "Help";
}
else
{
sosCommand = *arguments++;
}
}
CommandFunc commandFunc = (CommandFunc)dlsym(m_sosHandle, sosCommand);
if (commandFunc)
{
std::string str;
if (arguments != NULL)
{
for (const char* arg = *arguments; arg; arg = *(++arguments))
{
str.append(arg);
str.append(" ");
}
}
const char* sosArgs = str.c_str();
HRESULT hr = commandFunc(services, sosArgs);
if (hr != S_OK)
{
services->Output(DEBUG_OUTPUT_ERROR, "%s %s failed\n", sosCommand, sosArgs);
}
}
else
{
services->Output(DEBUG_OUTPUT_ERROR, "SOS command '%s' not found %s\n", sosCommand, dlerror());
}
}
services->Release();
return result.Succeeded();
}
void
LoadSos(LLDBServices *services)
{
if (m_sosHandle == NULL)
{
if (g_coreclrDirectory == NULL)
{
const char *coreclrModule = MAKEDLLNAME_A("coreclr");
const char *directory = services->GetModuleDirectory(coreclrModule);
if (directory != NULL)
{
std::string path(directory);
path.append("/");
g_coreclrDirectory = strdup(path.c_str());
}
else
{
services->Output(DEBUG_OUTPUT_WARNING, "The %s module is not loaded yet in the target process\n", coreclrModule);
}
}
if (g_coreclrDirectory != NULL)
{
// Load the DAC module first explicitly because SOS and DBI
// have implicit references to the DAC's PAL.
LoadModule(services, MAKEDLLNAME_A("mscordaccore"));
m_sosHandle = LoadModule(services, MAKEDLLNAME_A("sos"));
}
}
}
void *
LoadModule(LLDBServices *services, const char *moduleName)
{
std::string modulePath(g_coreclrDirectory);
modulePath.append(moduleName);
void *moduleHandle = dlopen(modulePath.c_str(), RTLD_NOW);
if (moduleHandle == NULL)
{
services->Output(DEBUG_OUTPUT_ERROR, "dlopen(%s) failed %s\n", modulePath.c_str(), dlerror());
}
return moduleHandle;
}
};
bool
sosCommandInitialize(lldb::SBDebugger debugger)
{
lldb::SBCommandInterpreter interpreter = debugger.GetCommandInterpreter();
interpreter.AddCommand("sos", new sosCommand(NULL), "Various coreclr debugging commands. See 'soshelp' for more details. sos <command-name> <args>");
interpreter.AddCommand("bpmd", new sosCommand("bpmd"), "Creates a breakpoint at the specified managed method in the specified module.");
interpreter.AddCommand("clrstack", new sosCommand("ClrStack"), "Provides a stack trace of managed code only.");
interpreter.AddCommand("clrthreads", new sosCommand("Threads"), "List the managed threads running.");
interpreter.AddCommand("createdump", new sosCommand("CreateDump"), "Create a xplat minidump.");
interpreter.AddCommand("clru", new sosCommand("u"), "Displays an annotated disassembly of a managed method.");
interpreter.AddCommand("dumpclass", new sosCommand("DumpClass"), "Displays information about a EE class structure at the specified address.");
interpreter.AddCommand("dumpheap", new sosCommand("DumpHeap"), "Displays info about the garbage-collected heap and collection statistics about objects.");
interpreter.AddCommand("dumpil", new sosCommand("DumpIL"), "Displays the Microsoft intermediate language (MSIL) that is associated with a managed method.");
interpreter.AddCommand("dumplog", new sosCommand("DumpLog"), "Writes the contents of an in-memory stress log to the specified file.");
interpreter.AddCommand("dumpmd", new sosCommand("DumpMD"), "Displays information about a MethodDesc structure at the specified address.");
interpreter.AddCommand("dumpmodule", new sosCommand("DumpModule"), "Displays information about a EE module structure at the specified address.");
interpreter.AddCommand("dumpmt", new sosCommand("DumpMT"), "Displays information about a method table at the specified address.");
interpreter.AddCommand("dumpobj", new sosCommand("DumpObj"), "Displays info about an object at the specified address.");
interpreter.AddCommand("dumpstack", new sosCommand("DumpStack"), "Displays a native and managed stack trace.");
interpreter.AddCommand("dso", new sosCommand("DumpStackObjects"), "Displays all managed objects found within the bounds of the current stack.");
interpreter.AddCommand("eeheap", new sosCommand("EEHeap"), "Displays info about process memory consumed by internal runtime data structures.");
interpreter.AddCommand("eestack", new sosCommand("EEStack"), "Runs dumpstack on all threads in the process.");
interpreter.AddCommand("gcroot", new sosCommand("GCRoot"), "Displays info about references (or roots) to an object at the specified address.");
interpreter.AddCommand("ip2md", new sosCommand("IP2MD"), "Displays the MethodDesc structure at the specified address in code that has been JIT-compiled.");
interpreter.AddCommand("name2ee", new sosCommand("Name2EE"), "Displays the MethodTable structure and EEClass structure for the specified type or method in the specified module.");
interpreter.AddCommand("pe", new sosCommand("PrintException"), "Displays and formats fields of any object derived from the Exception class at the specified address.");
interpreter.AddCommand("histclear", new sosCommand("HistClear"), "Releases any resources used by the family of Hist commands.");
interpreter.AddCommand("histinit", new sosCommand("HistInit"), "Initializes the SOS structures from the stress log saved in the debuggee.");
interpreter.AddCommand("histobj", new sosCommand("HistObj"), "Examines all stress log relocation records and displays the chain of garbage collection relocations that may have led to the address passed in as an argument.");
interpreter.AddCommand("histobjfind", new sosCommand("HistObjFind"), "Displays all the log entries that reference an object at the specified address.");
interpreter.AddCommand("histroot", new sosCommand("HistRoot"), "Displays information related to both promotions and relocations of the specified root.");
interpreter.AddCommand("soshelp", new sosCommand("Help"), "Displays all available commands when no parameter is specified, or displays detailed help information about the specified command. soshelp <command>");
return true;
}
|
