remote_gdb.cc (10595:25ecfc14f73f) remote_gdb.cc (10601:6efb37480d87)
1/*
2 * Copyright 2014 Google, Inc.
3 * Copyright (c) 2002-2005 The Regents of The University of Michigan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

--- 241 unchanged lines hidden (view full) ---

250#ifdef KGDB_FP_REGS
251 for (int i = 0; i < NumFloatArchRegs; ++i) {
252 context->setFloatRegBits(i, gdbregs.regs64[i + KGDB_REG_F0]);
253 }
254#endif
255 context->pcState(gdbregs.regs64[KGDB_REG_PC]);
256}
257
1/*
2 * Copyright 2014 Google, Inc.
3 * Copyright (c) 2002-2005 The Regents of The University of Michigan
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

--- 241 unchanged lines hidden (view full) ---

250#ifdef KGDB_FP_REGS
251 for (int i = 0; i < NumFloatArchRegs; ++i) {
252 context->setFloatRegBits(i, gdbregs.regs64[i + KGDB_REG_F0]);
253 }
254#endif
255 context->pcState(gdbregs.regs64[KGDB_REG_PC]);
256}
257
258void
259RemoteGDB::clearSingleStep()
260{
261 DPRINTF(GDBMisc, "clearSingleStep bt_addr=%#x nt_addr=%#x\n",
262 takenBkpt, notTakenBkpt);
263
264 if (takenBkpt != 0)
265 clearTempBreakpoint(takenBkpt);
266
267 if (notTakenBkpt != 0)
268 clearTempBreakpoint(notTakenBkpt);
269}
270
271void
272RemoteGDB::setSingleStep()
273{
274 PCState pc = context->pcState();
275 PCState bpc;
276 bool set_bt = false;
277
278 // User was stopped at pc, e.g. the instruction at pc was not
279 // executed.
280 MachInst inst = read<MachInst>(pc.pc());
281 StaticInstPtr si = context->getDecoderPtr()->decode(inst, pc.pc());
282 if (si->hasBranchTarget(pc, context, bpc)) {
283 // Don't bother setting a breakpoint on the taken branch if it
284 // is the same as the next pc
285 if (bpc.pc() != pc.npc())
286 set_bt = true;
287 }
288
289 DPRINTF(GDBMisc, "setSingleStep bt_addr=%#x nt_addr=%#x\n",
290 takenBkpt, notTakenBkpt);
291
292 setTempBreakpoint(notTakenBkpt = pc.npc());
293
294 if (set_bt)
295 setTempBreakpoint(takenBkpt = bpc.pc());
296}
297
298// Write bytes to kernel address space for debugger.
299bool
300RemoteGDB::write(Addr vaddr, size_t size, const char *data)
301{
302 if (BaseRemoteGDB::write(vaddr, size, data)) {
303#ifdef IMB
304 alpha_pal_imb();
305#endif

--- 14 unchanged lines hidden --- 		258// Write bytes to kernel address space for debugger.
259bool
260RemoteGDB::write(Addr vaddr, size_t size, const char *data)
261{
262 if (BaseRemoteGDB::write(vaddr, size, data)) {
263#ifdef IMB
264 alpha_pal_imb();
265#endif

--- 14 unchanged lines hidden ---