/*
* Copyright (c) 1990, 1993
- * The Regents of the University of California. All rights reserved.
+ * 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 "config/full_system.hh"
#include "cpu/thread_context.hh"
#include "cpu/static_inst.hh"
+#include "mem/page_table.hh"
#include "mem/physical.hh"
#include "mem/port.hh"
+#include "sim/process.hh"
#include "sim/system.hh"
using namespace std;
-using namespace TheISA;
+using namespace SparcISA;
RemoteGDB::RemoteGDB(System *_system, ThreadContext *c)
- : BaseRemoteGDB(_system, c, NumGDBRegs)
+ : BaseRemoteGDB(_system, c, NumGDBRegs), nextBkpt(0)
{}
///////////////////////////////////////////////////////////
// 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)
{
//@Todo In NetBSD, this function checks if all addresses
- //from va to va + len have valid page mape entries. Not
+ //from va to va + len have valid page map entries. Not
//sure how this will work for other OSes or in general.
- return true;
+#if FULL_SYSTEM
+ if (va)
+ return true;
+ return false;
+#else
+ TlbEntry entry;
+ //Check to make sure the first byte is mapped into the processes address
+ //space.
+ if (context->getProcessPtr()->pTable->lookup(va, entry))
+ return true;
+ return false;
+#endif
}
///////////////////////////////////////////////////////////
// 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.size);
- gdbregs.regs[RegPc] = context->readPC();
- gdbregs.regs[RegNpc] = context->readNextPC();
- for(int x = RegG0; x <= RegI0 + 7; x++)
- gdbregs.regs[x] = context->readIntReg(x - RegG0);
+ if (context->readMiscReg(MISCREG_PSTATE) &
+ PSTATE::am) {
+ uint32_t *regs;
+ regs = (uint32_t*)gdbregs.regs;
+ regs[Reg32Pc] = htobe((uint32_t)context->readPC());
+ regs[Reg32Npc] = htobe((uint32_t)context->readNextPC());
+ for(int x = RegG0; x <= RegI0 + 7; x++)
+ regs[x] = htobe((uint32_t)context->readIntReg(x - RegG0));
+
+ regs[Reg32Y] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 1));
+ regs[Reg32Psr] = htobe((uint32_t)context->readMiscReg(MISCREG_PSTATE));
+ regs[Reg32Fsr] = htobe((uint32_t)context->readMiscReg(MISCREG_FSR));
+ regs[Reg32Csr] = htobe((uint32_t)context->readIntReg(NumIntArchRegs + 2));
+ } else {
+ gdbregs.regs[RegPc] = htobe(context->readPC());
+ gdbregs.regs[RegNpc] = htobe(context->readNextPC());
+ for(int x = RegG0; x <= RegI0 + 7; x++)
+ gdbregs.regs[x] = htobe(context->readIntReg(x - RegG0));
+
+ gdbregs.regs[RegFsr] = htobe(context->readMiscReg(MISCREG_FSR));
+ gdbregs.regs[RegFprs] = htobe(context->readMiscReg(MISCREG_FPRS));
+ gdbregs.regs[RegY] = htobe(context->readIntReg(NumIntArchRegs + 1));
+ gdbregs.regs[RegState] = htobe(
+ context->readMiscReg(MISCREG_CWP) |
+ context->readMiscReg(MISCREG_PSTATE) << 8 |
+ context->readMiscReg(MISCREG_ASI) << 24 |
+ context->readIntReg(NumIntArchRegs + 2) << 32);
+ }
+
+ DPRINTF(GDBRead, "PC=%#x\n", gdbregs.regs[RegPc]);
+
//Floating point registers are left at 0 in netbsd
//All registers other than the pc, npc and int regs
//are ignored as well.
///////////////////////////////////////////////////////////
// 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()
void
RemoteGDB::clearSingleStep()
{
- panic("SPARC does not support hardware single stepping\n");
+ if (nextBkpt)
+ clearTempBreakpoint(nextBkpt);
}
void
RemoteGDB::setSingleStep()
{
- panic("SPARC does not support hardware single stepping\n");
+ nextBkpt = context->readNextPC();
+ setTempBreakpoint(nextBkpt);
}
projects / gem5.git / blobdiff