1/*
2 * Copyright (c) 2004-2005 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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79std::string
80ProcessInfo::name(Addr ksp) const
81{
82 Addr task = this->task(ksp);
83 if (!task)
84 return "console";
85
86 char comm[256];
87 CopyStringOut(tc, comm, task + name_off, sizeof(comm));
88 if (!comm[0])
89 return "startup";
90
91 return comm;
92}
93
94StackTrace::StackTrace()
95 : tc(0), stack(64)

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197bool
198StackTrace::decodePrologue(Addr sp, Addr callpc, Addr func,
199 int &size, Addr &ra)
200{
201 size = 0;
202 ra = 0;
203
204 for (Addr pc = func; pc < callpc; pc += sizeof(MachInst)) {
205 MachInst inst;
206 CopyOut(tc, (uint8_t *)&inst, pc, sizeof(MachInst));
207
208 int reg, disp;
209 if (decodeStack(inst, disp)) {
210 if (size) {
211 return true;
212 }
213 size += disp;
214 } else if (decodeSave(inst, reg, disp)) {
215 if (!ra && reg == ReturnAddressReg) {
216 CopyOut(tc, (uint8_t *)&ra, sp + disp, sizeof(Addr));
217 if (!ra) {
218 return false;
219 }
220 }
221 }
222 }
223
224 return true;
225}
226
227#if TRACING_ON
228void
229StackTrace::dump()
230{
231 panic("Stack trace dump not implemented.\n");
232}
233#endif