diff options
| -rw-r--r-- | base/kgdb.h | 28 | ||||
| -rw-r--r-- | base/remote_gdb.cc | 124 | ||||
| -rw-r--r-- | base/remote_gdb.hh | 9 | ||||
| -rw-r--r-- | base/trace.hh | 9 | ||||
| -rw-r--r-- | kern/tru64/tru64_system.cc | 2 |
5 files changed, 83 insertions, 89 deletions
diff --git a/base/kgdb.h b/base/kgdb.h index 35f74f4ba..a358dfa16 100644 --- a/base/kgdb.h +++ b/base/kgdb.h @@ -172,32 +172,4 @@ #define ALPHA_KENTRY_UNA 4 #define ALPHA_KENTRY_SYS 5 -/* - * MMCSR Fault Type Codes. [OSF/1 PALcode Specific] - */ - -#define ALPHA_MMCSR_INVALTRANS 0 -#define ALPHA_MMCSR_ACCESS 1 -#define ALPHA_MMCSR_FOR 2 -#define ALPHA_MMCSR_FOE 3 -#define ALPHA_MMCSR_FOW 4 - -/* - * Instruction Fault Type Codes. [OSF/1 PALcode Specific] - */ - -#define ALPHA_IF_CODE_BPT 0 -#define ALPHA_IF_CODE_BUGCHK 1 -#define ALPHA_IF_CODE_GENTRAP 2 -#define ALPHA_IF_CODE_FEN 3 -#define ALPHA_IF_CODE_OPDEC 4 - -#define BKPT_INST 0x00000080 // breakpoint instruction -#define BKPT_SIZE (4) // size of breakpoint inst - -#define IS_BREAKPOINT_TRAP(type, code) ((type) == ALPHA_KENTRY_IF && \ - (code) == ALPHA_IF_CODE_BPT) -#define IS_WATCHPOINT_TRAP(type, code) 0 - - #endif /* __KGDB_H__ */ diff --git a/base/remote_gdb.cc b/base/remote_gdb.cc index 35a90073a..e701b5a01 100644 --- a/base/remote_gdb.cc +++ b/base/remote_gdb.cc @@ -171,11 +171,17 @@ GDBListener::~GDBListener() delete event; } +string +GDBListener::name() +{ + return gdb->name() + ".listener"; +} + void GDBListener::listen() { while (!listener.listen(port, true)) { - DPRINTF(RGDB, "GDBListener(listen): Can't bind port %d\n", port); + DPRINTF(GDBMisc, "Can't bind port %d\n", port); port++; } @@ -188,7 +194,7 @@ void GDBListener::accept() { if (!listener.islistening()) - panic("GDBListener(accept): cannot accept a connection if we're not listening!"); + panic("GDBListener::accept(): cannot accept if we're not listening!"); int sfd = listener.accept(true); @@ -216,7 +222,12 @@ RemoteGDB::Event::Event(RemoteGDB *g, int fd, int e) void RemoteGDB::Event::process(int revent) -{ gdb->trap(ALPHA_KENTRY_IF); } +{ + if (revent & POLLIN) + gdb->trap(ALPHA_KENTRY_IF); + else if (revent & POLLNVAL) + gdb->detach(); +} RemoteGDB::RemoteGDB(System *_system, ExecContext *c) : event(NULL), fd(-1), active(false), attached(false), @@ -231,6 +242,12 @@ RemoteGDB::~RemoteGDB() delete event; } +string +RemoteGDB::name() +{ + return system->name() + ".remote_gdb"; +} + bool RemoteGDB::isattached() { return attached; } @@ -316,17 +333,17 @@ RemoteGDB::acc(Addr va, size_t len) do { if (va < ALPHA_K0SEG_BASE) { - DPRINTF(RGDB, "RGDB(acc): Mapping is invalid %#x < K0SEG\n", va); + DPRINTF(GDBAcc, "acc: Mapping is invalid %#x < K0SEG\n", va); return false; } if (va < ALPHA_K1SEG_BASE) { if (va < (ALPHA_K0SEG_BASE + pmem->getSize())) { - DPRINTF(RGDB, "RGDB(acc): Mapping is valid K0SEG <= " + DPRINTF(GDBAcc, "acc: Mapping is valid K0SEG <= " "%#x < K0SEG + size\n", va); return true; } else { - DPRINTF(RGDB, "RGDB(acc): Mapping is invalid %#x < K0SEG\n", + DPRINTF(GDBAcc, "acc: Mapping is invalid %#x < K0SEG\n", va); return false; } @@ -335,13 +352,13 @@ RemoteGDB::acc(Addr va, size_t len) Addr ptbr = context->regs.ipr[AlphaISA::IPR_PALtemp20]; pte = kernel_pte_lookup(pmem, ptbr, va); if (!pte || !entry_valid(pmem->phys_read_qword(pte))) { - DPRINTF(RGDB, "RGDB(acc): %#x pte is invalid\n", va); + DPRINTF(GDBAcc, "acc: %#x pte is invalid\n", va); return false; } va += ALPHA_PGBYTES; } while (va < last_va); - DPRINTF(RGDB, "RGDB(acc): %#x mapping is valid\n", va); + DPRINTF(GDBAcc, "acc: %#x mapping is valid\n", va); return true; } @@ -355,6 +372,9 @@ int RemoteGDB::signal(int type) { switch (type) { + case ALPHA_KENTRY_INT: + return (SIGTRAP); + case ALPHA_KENTRY_UNA: return (SIGBUS); @@ -399,7 +419,8 @@ RemoteGDB::getregs() void RemoteGDB::setregs() { - memcpy(context->regs.intRegFile, &gdbregs[KGDB_REG_V0], 32 * sizeof(uint64_t)); + memcpy(context->regs.intRegFile, &gdbregs[KGDB_REG_V0], + 32 * sizeof(uint64_t)); #ifdef KGDB_FP_REGS memcpy(context->regs.floatRegFile.q, &gdbregs[KGDB_REG_F0], 32 * sizeof(uint64_t)); @@ -410,7 +431,7 @@ RemoteGDB::setregs() void RemoteGDB::setTempBreakpoint(TempBreakpoint &bkpt, Addr addr) { - DPRINTF(RGDB, "RGDB(setTempBreakpoint): addr=%#x\n", addr); + DPRINTF(GDBMisc, "setTempBreakpoint: addr=%#x\n", addr); bkpt.address = addr; insertHardBreak(addr, 4); @@ -419,7 +440,7 @@ RemoteGDB::setTempBreakpoint(TempBreakpoint &bkpt, Addr addr) void RemoteGDB::clearTempBreakpoint(TempBreakpoint &bkpt) { - DPRINTF(RGDB, "RGDB(setTempBreakpoint): addr=%#x\n", + DPRINTF(GDBMisc, "setTempBreakpoint: addr=%#x\n", bkpt.address); @@ -430,7 +451,7 @@ RemoteGDB::clearTempBreakpoint(TempBreakpoint &bkpt) void RemoteGDB::clearSingleStep() { - DPRINTF(RGDB, "clearSingleStep bt_addr=%#x nt_addr=%#x\n", + DPRINTF(GDBMisc, "clearSingleStep bt_addr=%#x nt_addr=%#x\n", takenBkpt.address, notTakenBkpt.address); if (takenBkpt.address != 0) @@ -460,7 +481,7 @@ RemoteGDB::setSingleStep() set_bt = true; } - DPRINTF(RGDB, "setSingleStep bt_addr=%#x nt_addr=%#x\n", + DPRINTF(GDBMisc, "setSingleStep bt_addr=%#x nt_addr=%#x\n", takenBkpt.address, notTakenBkpt.address); setTempBreakpoint(notTakenBkpt, npc); @@ -494,7 +515,7 @@ RemoteGDB::send(const char *bp) const char *p; uint8_t csum, c; -// DPRINTF(RGDB, "RGDB(send): %s\n", bp); + DPRINTF(GDBSend, "send: %s\n", bp); do { p = bp; @@ -554,7 +575,7 @@ RemoteGDB::recv(char *bp, int maxlen) putbyte(KGDB_BADP); } while (1); -// DPRINTF(RGDB, "RGDB(recv): %s: %s\n", gdb_command(*bp), bp); + DPRINTF(GDBRecv, "recv: %s: %s\n", gdb_command(*bp), bp); return (len); } @@ -569,11 +590,11 @@ RemoteGDB::read(Addr vaddr, size_t size, char *data) uint8_t *maddr; if (vaddr < 10) { - DPRINTF(RGDB, "\nRGDB(read): reading memory location zero!\n"); + DPRINTF(GDBRead, "read: reading memory location zero!\n"); vaddr = lastaddr + lastsize; } - DPRINTF(RGDB, "RGDB(read): addr=%#x, size=%d", vaddr, size); + DPRINTF(GDBRead, "read: addr=%#x, size=%d", vaddr, size); #if TRACING_ON char *d = data; size_t s = size; @@ -607,10 +628,13 @@ RemoteGDB::read(Addr vaddr, size_t size, char *data) } #if TRACING_ON - if (DTRACE(RGDB)) { - char buf[1024]; - mem2hex(buf, d, s); - cprintf(": %s\n", buf); + if (DTRACE(GDBRead)) { + if (DTRACE(GDBExtra)) { + char buf[1024]; + mem2hex(buf, d, s); + DPRINTFNR(": %s\n", buf); + } else + DPRINTFNR("\n"); } #endif @@ -627,14 +651,18 @@ RemoteGDB::write(Addr vaddr, size_t size, const char *data) uint8_t *maddr; if (vaddr < 10) { - DPRINTF(RGDB, "RGDB(write): writing memory location zero!\n"); + DPRINTF(GDBWrite, "write: writing memory location zero!\n"); vaddr = lastaddr + lastsize; } - if (DTRACE(RGDB)) { - char buf[1024]; - mem2hex(buf, data, size); - cprintf("RGDB(write): addr=%#x, size=%d: %s\n", vaddr, size, buf); + if (DTRACE(GDBWrite)) { + DPRINTFN("write: addr=%#x, size=%d", vaddr, size); + if (DTRACE(GDBExtra)) { + char buf[1024]; + mem2hex(buf, data, size); + DPRINTFNR(": %s\n", buf); + } else + DPRINTFNR("\n"); } lastaddr = vaddr; @@ -682,17 +710,17 @@ RemoteGDB::HardBreakpoint::HardBreakpoint(RemoteGDB *_gdb, Addr pc) : PCEvent(_gdb->getPcEventQueue(), "HardBreakpoint Event", pc), gdb(_gdb), refcount(0) { - DPRINTF(RGDB, "creating hardware breakpoint at %#x\n", evpc); + DPRINTF(GDBMisc, "creating hardware breakpoint at %#x\n", evpc); schedule(); } void RemoteGDB::HardBreakpoint::process(ExecContext *xc) { - DPRINTF(RGDB, "handling hardware breakpoint at %#x\n", pc()); + DPRINTF(GDBMisc, "handling hardware breakpoint at %#x\n", pc()); if (xc == gdb->context) - gdb->trap(ALPHA_KENTRY_IF); + gdb->trap(ALPHA_KENTRY_INT); } bool @@ -719,7 +747,7 @@ RemoteGDB::insertHardBreak(Addr addr, size_t len) if (len != sizeof(MachInst)) panic("invalid length\n"); - DPRINTF(RGDB, "inserting hardware breakpoint at %#x\n", addr); + DPRINTF(GDBMisc, "inserting hardware breakpoint at %#x\n", addr); HardBreakpoint *&bkpt = hardBreakMap[addr]; if (bkpt == 0) @@ -728,19 +756,6 @@ RemoteGDB::insertHardBreak(Addr addr, size_t len) bkpt->refcount++; return true; - -#if 0 - break_iter_t i = hardBreakMap.find(addr); - if (i == hardBreakMap.end()) { - HardBreakpoint *bkpt = new HardBreakpoint(this, addr); - hardBreakMap[addr] = bkpt; - i = hardBreakMap.insert(make_pair(addr, bkpt)); - if (i == hardBreakMap.end()) - return false; - } - - (*i).second->refcount++; -#endif } bool @@ -749,7 +764,7 @@ RemoteGDB::removeHardBreak(Addr addr, size_t len) if (len != sizeof(MachInst)) panic("invalid length\n"); - DPRINTF(RGDB, "removing hardware breakpoint at %#x\n", addr); + DPRINTF(GDBMisc, "removing hardware breakpoint at %#x\n", addr); break_iter_t i = hardBreakMap.find(addr); if (i == hardBreakMap.end()) @@ -798,7 +813,7 @@ RemoteGDB::trap(int type) if (!attached) return false; - DPRINTF(RGDB, "RGDB(trap): PC=%#x NPC=%#x\n", + DPRINTF(GDBMisc, "trap: PC=%#x NPC=%#x\n", context->regs.pc, context->regs.npc); clearSingleStep(); @@ -813,17 +828,12 @@ RemoteGDB::trap(int type) * After the debugger is "active" (connected) it will be * waiting for a "signaled" message from us. */ - if (!active) { - if (!IS_BREAKPOINT_TRAP(type, 0)) { - // No debugger active -- let trap handle this. - return false; - } + if (!active) active = true; - } else { + else // Tell remote host that an exception has occurred. sprintf((char *)buffer, "S%02x", signal(type)); send(buffer); - } // Stick frame regs into our reg cache. getregs(); @@ -1000,7 +1010,7 @@ RemoteGDB::trap(int type) if (*p++ != ',') send("E0D"); len = hex2i(&p); - DPRINTF(RGDB, "kgdb: clear %s, addr=%#x, len=%d\n", + DPRINTF(GDBMisc, "clear %s, addr=%#x, len=%d\n", break_type(subcmd), val, len); ret = false; @@ -1032,7 +1042,7 @@ RemoteGDB::trap(int type) if (*p++ != ',') send("E0D"); len = hex2i(&p); - DPRINTF(RGDB, "kgdb: set %s, addr=%#x, len=%d\n", + DPRINTF(GDBMisc, "set %s, addr=%#x, len=%d\n", break_type(subcmd), val, len); ret = false; @@ -1077,15 +1087,15 @@ RemoteGDB::trap(int type) case KGDB_TARGET_EXIT: case KGDB_BINARY_DLOAD: // Unsupported command - DPRINTF(RGDB, "kgdb: Unsupported command: %s\n", + DPRINTF(GDBMisc, "Unsupported command: %s\n", gdb_command(command)); - DDUMP(RGDB, (uint8_t *)data, datalen); + DDUMP(GDBMisc, (uint8_t *)data, datalen); send(""); continue; default: // Unknown command. - DPRINTF(RGDB, "kgdb: Unknown command: %c(%#x)\n", + DPRINTF(GDBMisc, "Unknown command: %c(%#x)\n", command, command); send(""); continue; diff --git a/base/remote_gdb.hh b/base/remote_gdb.hh index 62fd52856..fcc1ee2a9 100644 --- a/base/remote_gdb.hh +++ b/base/remote_gdb.hh @@ -116,9 +116,12 @@ class RemoteGDB RemoteGDB *gdb; public: + int refcount; + + public: HardBreakpoint(RemoteGDB *_gdb, Addr addr); + std::string name() { return gdb->name() + ".hwbkpt"; } - int refcount; virtual void process(ExecContext *xc); }; friend class HardBreakpoint; @@ -145,6 +148,9 @@ class RemoteGDB void clearTempBreakpoint(TempBreakpoint &bkpt); void setTempBreakpoint(TempBreakpoint &bkpt, Addr addr); + + public: + std::string name(); }; template <class T> @@ -188,6 +194,7 @@ class GDBListener void accept(); void listen(); + std::string name(); }; #endif /* __REMOTE_GDB_H__ */ diff --git a/base/trace.hh b/base/trace.hh index 5aeaac445..9e5952765 100644 --- a/base/trace.hh +++ b/base/trace.hh @@ -179,9 +179,8 @@ std::ostream &DebugOut(); #define DDUMP(x, data, count) \ do { \ - using namespace Trace; \ if (Trace::IsOn(Trace::x)) \ - rawDump(data, count); \ + Trace::rawDump(data, count); \ } while (0) #define __dprintf(cycle, name, format, args...) \ @@ -204,6 +203,11 @@ do { \ __dprintf(curTick, name(), args, cp::ArgListNull()); \ } while (0) +#define DPRINTFNR(args...) \ +do { \ + __dprintf((Tick)-1, string(), args, cp::ArgListNull()); \ +} while (0) + #else // !TRACING_ON #define DTRACE(x) (false) @@ -211,6 +215,7 @@ do { \ #define DPRINTF(x, args...) do {} while (0) #define DPRINTFR(args...) do {} while (0) #define DPRINTFN(args...) do {} while (0) +#define DPRINTFNR(args...) do {} while (0) #define DDUMP(x, data, count) do {} while (0) #endif // TRACING_ON diff --git a/kern/tru64/tru64_system.cc b/kern/tru64/tru64_system.cc index 07c655385..1cd98fdc1 100644 --- a/kern/tru64/tru64_system.cc +++ b/kern/tru64/tru64_system.cc @@ -601,7 +601,7 @@ Tru64System::replaceExecContext(ExecContext *xc, int xcIndex) bool Tru64System::breakpoint() { - return remoteGDB[0]->trap(ALPHA_KENTRY_IF); + return remoteGDB[0]->trap(ALPHA_KENTRY_INT); } #ifdef FS_MEASURE |