*/
/*
- * Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
+ * Copyright (c) 1990, 1993 The Regents of the University of California
+ * All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Lawrence Berkeley Laboratories.
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratories.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
+ * @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
*/
/*-
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
- * This product includes software developed by the NetBSD
- * Foundation, Inc. and its contributors.
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*/
#include <sys/signal.h>
+#include <unistd.h>
#include <string>
-#include <unistd.h>
+
#include "arch/alpha/kgdb.h"
+#include "arch/alpha/regredir.hh"
#include "arch/alpha/remote_gdb.hh"
-#include "arch/vtophys.hh"
+#include "arch/alpha/utility.hh"
+#include "arch/alpha/vtophys.hh"
#include "base/intmath.hh"
#include "base/remote_gdb.hh"
#include "base/socket.hh"
#include "base/trace.hh"
-#include "config/full_system.hh"
-#include "cpu/thread_context.hh"
+#include "cpu/decode.hh"
#include "cpu/static_inst.hh"
+#include "cpu/thread_context.hh"
+#include "debug/GDBAcc.hh"
+#include "debug/GDBMisc.hh"
#include "mem/physical.hh"
#include "mem/port.hh"
#include "sim/system.hh"
+#include "sim/full_system.hh"
using namespace std;
-using namespace TheISA;
+using namespace AlphaISA;
-RemoteGDB::RemoteGDB(System *_system, ThreadContext *c)
- : BaseRemoteGDB(_system, c, KGDB_NUMREGS)
+RemoteGDB::RemoteGDB(System *_system, ThreadContext *tc)
+ : BaseRemoteGDB(_system, tc, KGDB_NUMREGS)
{
memset(gdbregs.regs, 0, gdbregs.bytes());
}
-///////////////////////////////////////////////////////////
-// RemoteGDB::acc
-//
-// Determine if the mapping at va..(va+len) is valid.
-//
+/*
+ * Determine if the mapping at va..(va+len) is valid.
+ */
bool
RemoteGDB::acc(Addr va, size_t len)
{
+ if (!FullSystem)
+ panic("acc function needs to be rewritten for SE mode\n");
+
Addr last_va;
- va = TheISA::TruncPage(va);
- last_va = TheISA::RoundPage(va + len);
+ va = TruncPage(va);
+ last_va = RoundPage(va + len);
do {
- if (TheISA::IsK0Seg(va)) {
- if (va < (TheISA::K0SegBase + pmem->size())) {
+ if (IsK0Seg(va)) {
+ if (va < (K0SegBase + pmem->size())) {
DPRINTF(GDBAcc, "acc: Mapping is valid K0SEG <= "
"%#x < K0SEG + size\n", va);
return true;
} else {
- DPRINTF(GDBAcc, "acc: Mapping invalid %#x > K0SEG + size\n",
- va);
+ DPRINTF(GDBAcc, "acc: Mapping invalid %#x "
+ "> K0SEG + size\n", va);
return false;
}
}
- /**
- * This code says that all accesses to palcode (instruction and data)
- * are valid since there isn't a va->pa mapping because palcode is
- * accessed physically. At some point this should probably be cleaned up
- * but there is no easy way to do it.
- */
+ /**
+ * This code says that all accesses to palcode (instruction
+ * and data) are valid since there isn't a va->pa mapping
+ * because palcode is accessed physically. At some point this
+ * should probably be cleaned up but there is no easy way to
+ * do it.
+ */
- if (AlphaISA::PcPAL(va) || va < 0x10000)
+ if (PcPAL(va) || va < 0x10000)
return true;
- Addr ptbr = context->readMiscReg(AlphaISA::IPR_PALtemp20);
- TheISA::PageTableEntry pte = TheISA::kernel_pte_lookup(context->getPhysPort(), ptbr, va);
+ Addr ptbr = context->readMiscRegNoEffect(IPR_PALtemp20);
+ PageTableEntry pte =
+ kernel_pte_lookup(context->getPhysProxy(), ptbr, va);
if (!pte.valid()) {
DPRINTF(GDBAcc, "acc: %#x pte is invalid\n", va);
return false;
}
- va += TheISA::PageBytes;
+ va += PageBytes;
} while (va < last_va);
DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va);
return true;
}
-///////////////////////////////////////////////////////////
-// RemoteGDB::getregs
-//
-// Translate the kernel debugger register format into
-// the GDB register format.
+/*
+ * Translate the kernel debugger register format into the GDB register
+ * format.
+ */
void
RemoteGDB::getregs()
{
memset(gdbregs.regs, 0, gdbregs.bytes());
- gdbregs.regs[KGDB_REG_PC] = context->readPC();
+ gdbregs.regs[KGDB_REG_PC] = context->pcState().pc();
// @todo: Currently this is very Alpha specific.
- if (AlphaISA::PcPAL(gdbregs.regs[KGDB_REG_PC])) {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
- gdbregs.regs[i] = context->readIntReg(AlphaISA::reg_redir[i]);
+ if (PcPAL(gdbregs.regs[KGDB_REG_PC])) {
+ for (int i = 0; i < NumIntArchRegs; ++i) {
+ gdbregs.regs[i] = context->readIntReg(reg_redir[i]);
}
} else {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
+ for (int i = 0; i < NumIntArchRegs; ++i) {
gdbregs.regs[i] = context->readIntReg(i);
}
}
#ifdef KGDB_FP_REGS
- for (int i = 0; i < TheISA::NumFloatArchRegs; ++i) {
+ for (int i = 0; i < NumFloatArchRegs; ++i) {
gdbregs.regs[i + KGDB_REG_F0] = context->readFloatRegBits(i);
}
#endif
}
-///////////////////////////////////////////////////////////
-// RemoteGDB::setregs
-//
-// Translate the GDB register format into the kernel
-// debugger register format.
-//
+/*
+ * Translate the GDB register format into the kernel debugger register
+ * format.
+ */
void
RemoteGDB::setregs()
{
// @todo: Currently this is very Alpha specific.
- if (AlphaISA::PcPAL(gdbregs.regs[KGDB_REG_PC])) {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
- context->setIntReg(AlphaISA::reg_redir[i], gdbregs.regs[i]);
+ if (PcPAL(gdbregs.regs[KGDB_REG_PC])) {
+ for (int i = 0; i < NumIntArchRegs; ++i) {
+ context->setIntReg(reg_redir[i], gdbregs.regs[i]);
}
} else {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
+ for (int i = 0; i < NumIntArchRegs; ++i) {
context->setIntReg(i, gdbregs.regs[i]);
}
}
#ifdef KGDB_FP_REGS
- for (int i = 0; i < TheISA::NumFloatArchRegs; ++i) {
+ for (int i = 0; i < NumFloatArchRegs; ++i) {
context->setFloatRegBits(i, gdbregs.regs[i + KGDB_REG_F0]);
}
#endif
- context->setPC(gdbregs.regs[KGDB_REG_PC]);
+ context->pcState(gdbregs.regs[KGDB_REG_PC]);
}
void
void
RemoteGDB::setSingleStep()
{
- Addr pc = context->readPC();
- Addr npc, bpc;
+ PCState pc = context->pcState();
+ PCState bpc;
bool set_bt = false;
- npc = pc + sizeof(MachInst);
-
// User was stopped at pc, e.g. the instruction at pc was not
// executed.
- MachInst inst = read<MachInst>(pc);
- StaticInstPtr si(inst);
+ MachInst inst = read<MachInst>(pc.pc());
+ StaticInstPtr si = context->getDecoderPtr()->decode(inst, pc.pc());
if (si->hasBranchTarget(pc, context, bpc)) {
// Don't bother setting a breakpoint on the taken branch if it
// is the same as the next pc
- if (bpc != npc)
+ if (bpc.pc() != pc.npc())
set_bt = true;
}
DPRINTF(GDBMisc, "setSingleStep bt_addr=%#x nt_addr=%#x\n",
takenBkpt, notTakenBkpt);
- setTempBreakpoint(notTakenBkpt = npc);
+ setTempBreakpoint(notTakenBkpt = pc.npc());
if (set_bt)
- setTempBreakpoint(takenBkpt = bpc);
+ setTempBreakpoint(takenBkpt = bpc.pc());
}
// Write bytes to kernel address space for debugger.
}
}
+
+bool
+RemoteGDB::insertHardBreak(Addr addr, size_t len)
+{
+ warn_once("Breakpoints do not work in Alpha PAL mode.\n"
+ " See PCEventQueue::doService() in cpu/pc_event.cc.\n");
+ return BaseRemoteGDB::insertHardBreak(addr, len);
+}
projects / gem5.git / blobdiff