1/*
2 * Copyright (c) 2004 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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90 p.readBlob(addr, (uint8_t *)&sp, sizeof(Addr));
91
92 return sp & ~ULL(0x3fff);
93 }
94
95 inline Addr
96 curTaskInfo(Addr thread_info = 0)
97 {
98 int32_t offset;
99 if (!get_data("thread_info_task", offset))
100 return 0;
101
102 if (!thread_info)
103 thread_info = curThreadInfo();
104
105 Addr addr;
106 CopyOut(tc, &addr, thread_info + offset, sizeof(addr));
107
108 return addr;
109 }
110
111 int32_t
112 curTaskPID(Addr thread_info = 0)
113 {
114 int32_t offset;
115 if (!get_data("task_struct_pid", offset))
116 return -1;
117
118 int32_t pid;
119 CopyOut(tc, &pid, curTaskInfo(thread_info) + offset, sizeof(pid));
120
121 return pid;
122 }
123
124 int32_t
125 curTaskTGID(Addr thread_info = 0)
126 {
127 int32_t offset;
128 if (!get_data("task_struct_tgid", offset))
129 return -1;
130
131 int32_t tgid;
132 CopyOut(tc, &tgid, curTaskInfo(thread_info) + offset, sizeof(tgid));
133
134 return tgid;
135 }
136
137 int64_t
138 curTaskStart(Addr thread_info = 0)
139 {
140 int32_t offset;
141 if (!get_data("task_struct_start_time", offset))
142 return -1;
143
144 int64_t data;
145 // start_time is actually of type timespec, but if we just
146 // grab the first long, we'll get the seconds out of it
147 CopyOut(tc, &data, curTaskInfo(thread_info) + offset, sizeof(data));
148
149 return data;
150 }
151
152 std::string
153 curTaskName(Addr thread_info = 0)
154 {
155 int32_t offset;
156 int32_t size;
157
158 if (!get_data("task_struct_comm", offset))
159 return "FailureIn_curTaskName";
160
161 if (!get_data("task_struct_comm_size", size))
162 return "FailureIn_curTaskName";
163
164 char buffer[size + 1];
165 CopyStringOut(tc, buffer, curTaskInfo(thread_info) + offset, size);
166
167 return buffer;
168 }
169
170 int32_t
171 curTaskMm(Addr thread_info = 0)
172 {
173 int32_t offset;
174 if (!get_data("task_struct_mm", offset))
175 return -1;
176
177 int32_t mm_ptr;
178 CopyOut(tc, &mm_ptr, curTaskInfo(thread_info) + offset, sizeof(mm_ptr));
179
180 return mm_ptr;
181 }
182};
183
184} // namespace Linux
185
186#endif // __ARCH_GENERIC_LINUX_THREADINFO_HH__