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Diffstat (limited to 'src/arch/sparc/remote_gdb.cc')
-rw-r--r--src/arch/sparc/remote_gdb.cc222
1 files changed, 22 insertions, 200 deletions
diff --git a/src/arch/sparc/remote_gdb.cc b/src/arch/sparc/remote_gdb.cc
index 2e662af7f..5f9c532b8 100644
--- a/src/arch/sparc/remote_gdb.cc
+++ b/src/arch/sparc/remote_gdb.cc
@@ -124,7 +124,6 @@
#include "arch/vtophys.hh"
#include "arch/sparc/remote_gdb.hh"
#include "base/intmath.hh"
-#include "base/kgdb.h"
#include "base/remote_gdb.hh"
#include "base/socket.hh"
#include "base/trace.hh"
@@ -138,30 +137,10 @@
using namespace std;
using namespace TheISA;
-RemoteGDB::Event::Event(RemoteGDB *g, int fd, int e)
- : PollEvent(fd, e), gdb(g)
-{}
-
-void
-RemoteGDB::Event::process(int revent)
-{
- if (revent & POLLIN)
- gdb->trap(ALPHA_KENTRY_IF);
- else if (revent & POLLNVAL)
- gdb->detach();
-}
-
RemoteGDB::RemoteGDB(System *_system, ThreadContext *c)
- : BaseRemoteGDB(_system, c, KGDB_NUMREGS),
- event(NULL)
+ : BaseRemoteGDB(_system, c, NumGDBRegs)
{}
-RemoteGDB::~RemoteGDB()
-{
- if (event)
- delete event;
-}
-
///////////////////////////////////////////////////////////
// RemoteGDB::acc
//
@@ -170,6 +149,7 @@ RemoteGDB::~RemoteGDB()
bool
RemoteGDB::acc(Addr va, size_t len)
{
+#if 0
Addr last_va;
va = TheISA::TruncPage(va);
@@ -208,41 +188,11 @@ RemoteGDB::acc(Addr va, size_t len)
} while (va < last_va);
DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va);
+#endif
return true;
}
///////////////////////////////////////////////////////////
-// RemoteGDB::signal
-//
-// Translate a trap number into a Unix-compatible signal number.
-// (GDB only understands Unix signal numbers.)
-//
-int
-RemoteGDB::signal(int type)
-{
- switch (type) {
- case ALPHA_KENTRY_INT:
- return (SIGTRAP);
-
- case ALPHA_KENTRY_UNA:
- return (SIGBUS);
-
- case ALPHA_KENTRY_ARITH:
- return (SIGFPE);
-
- case ALPHA_KENTRY_IF:
- return (SIGILL);
-
- case ALPHA_KENTRY_MM:
- return (SIGSEGV);
-
- default:
- panic("unknown signal type");
- return 0;
- }
-}
-
-///////////////////////////////////////////////////////////
// RemoteGDB::getregs
//
// Translate the kernel debugger register format into
@@ -252,24 +202,14 @@ RemoteGDB::getregs()
{
memset(gdbregs.regs, 0, gdbregs.size);
- gdbregs.regs[KGDB_REG_PC] = context->readPC();
-
- // @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]);
- }
- } else {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
- gdbregs.regs[i] = context->readIntReg(i);
- }
- }
-
-#ifdef KGDB_FP_REGS
- for (int i = 0; i < TheISA::NumFloatArchRegs; ++i) {
- gdbregs.regs[i + KGDB_REG_F0] = context->readFloatRegBits(i);
- }
-#endif
+ gdbregs.regs[RegPc] = context->readPC();
+ gdbregs.regs[RegNpc] = context->readNextPC();
+ for(int x = RegG0; x <= RegI7; x++)
+ gdbregs.regs[x] = context->readIntReg(x - RegG0);
+ for(int x = RegF0; x <= RegF31; x++)
+ gdbregs.regs[x] = context->readFloatRegBits(x - RegF0);
+ gdbregs.regs[RegY] = context->readMiscReg(MISCREG_Y);
+ //XXX need to also load up Psr, Wim, Tbr, Fpsr, and Cpsr
}
///////////////////////////////////////////////////////////
@@ -281,48 +221,20 @@ RemoteGDB::getregs()
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]);
- }
- } else {
- for (int i = 0; i < TheISA::NumIntArchRegs; ++i) {
- context->setIntReg(i, gdbregs.regs[i]);
- }
- }
-
-#ifdef KGDB_FP_REGS
- for (int i = 0; i < TheISA::NumFloatArchRegs; ++i) {
- context->setFloatRegBits(i, gdbregs.regs[i + KGDB_REG_F0]);
- }
-#endif
- context->setPC(gdbregs.regs[KGDB_REG_PC]);
-}
-
-void
-RemoteGDB::setTempBreakpoint(TempBreakpoint &bkpt, Addr addr)
-{
- DPRINTF(GDBMisc, "setTempBreakpoint: addr=%#x\n", addr);
-
- bkpt.address = addr;
- insertHardBreak(addr, 4);
-}
-
-void
-RemoteGDB::clearTempBreakpoint(TempBreakpoint &bkpt)
-{
- DPRINTF(GDBMisc, "setTempBreakpoint: addr=%#x\n",
- bkpt.address);
-
-
- removeHardBreak(bkpt.address, 4);
- bkpt.address = 0;
+ context->setPC(gdbregs.regs[RegPc]);
+ context->setNextPC(gdbregs.regs[RegNpc]);
+ for(int x = RegG0; x <= RegI7; x++)
+ context->setIntReg(x - RegG0, gdbregs.regs[x]);
+ for(int x = RegF0; x <= RegF31; x++)
+ context->setFloatRegBits(x - RegF0, gdbregs.regs[x]);
+ context->setMiscRegWithEffect(MISCREG_Y, gdbregs.regs[RegY]);
+ //XXX need to also set Psr, Wim, Tbr, Fpsr, and Cpsr
}
void
RemoteGDB::clearSingleStep()
{
+#if 0
DPRINTF(GDBMisc, "clearSingleStep bt_addr=%#x nt_addr=%#x\n",
takenBkpt.address, notTakenBkpt.address);
@@ -331,11 +243,13 @@ RemoteGDB::clearSingleStep()
if (notTakenBkpt.address != 0)
clearTempBreakpoint(notTakenBkpt);
+#endif
}
void
RemoteGDB::setSingleStep()
{
+#if 0
Addr pc = context->readPC();
Addr npc, bpc;
bool set_bt = false;
@@ -360,97 +274,5 @@ RemoteGDB::setSingleStep()
if (set_bt)
setTempBreakpoint(takenBkpt, bpc);
-}
-
-// Write bytes to kernel address space for debugger.
-bool
-RemoteGDB::write(Addr vaddr, size_t size, const char *data)
-{
- if (BaseRemoteGDB::write(vaddr, size, data)) {
-#ifdef IMB
- alpha_pal_imb();
#endif
- return true;
- } else {
- return false;
- }
-}
-
-
-PCEventQueue *RemoteGDB::getPcEventQueue()
-{
- return &system->pcEventQueue;
-}
-
-
-RemoteGDB::HardBreakpoint::HardBreakpoint(RemoteGDB *_gdb, Addr pc)
- : PCEvent(_gdb->getPcEventQueue(), "HardBreakpoint Event", pc),
- gdb(_gdb), refcount(0)
-{
- DPRINTF(GDBMisc, "creating hardware breakpoint at %#x\n", evpc);
-}
-
-void
-RemoteGDB::HardBreakpoint::process(ThreadContext *tc)
-{
- DPRINTF(GDBMisc, "handling hardware breakpoint at %#x\n", pc());
-
- if (tc == gdb->context)
- gdb->trap(ALPHA_KENTRY_INT);
-}
-
-bool
-RemoteGDB::insertSoftBreak(Addr addr, size_t len)
-{
- if (len != sizeof(MachInst))
- panic("invalid length\n");
-
- return insertHardBreak(addr, len);
-}
-
-bool
-RemoteGDB::removeSoftBreak(Addr addr, size_t len)
-{
- if (len != sizeof(MachInst))
- panic("invalid length\n");
-
- return removeHardBreak(addr, len);
-}
-
-bool
-RemoteGDB::insertHardBreak(Addr addr, size_t len)
-{
- if (len != sizeof(MachInst))
- panic("invalid length\n");
-
- DPRINTF(GDBMisc, "inserting hardware breakpoint at %#x\n", addr);
-
- HardBreakpoint *&bkpt = hardBreakMap[addr];
- if (bkpt == 0)
- bkpt = new HardBreakpoint(this, addr);
-
- bkpt->refcount++;
-
- return true;
-}
-
-bool
-RemoteGDB::removeHardBreak(Addr addr, size_t len)
-{
- if (len != sizeof(MachInst))
- panic("invalid length\n");
-
- DPRINTF(GDBMisc, "removing hardware breakpoint at %#x\n", addr);
-
- break_iter_t i = hardBreakMap.find(addr);
- if (i == hardBreakMap.end())
- return false;
-
- HardBreakpoint *hbp = (*i).second;
- if (--hbp->refcount == 0) {
- delete hbp;
- hardBreakMap.erase(i);
- }
-
- return true;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 19:57:18 +0000