| /* * Copyright 2022 Google, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "arch/arm/fastmodel/remote_gdb.hh" |
| |
| #include "arch/arm/fastmodel/iris/thread_context.hh" |
| #include "arch/arm/utility.hh" |
| #include "base/trace.hh" |
| #include "debug/GDBAcc.hh" |
| |
| namespace gem5 { |
| |
| using namespace ArmISA; |
| |
| namespace fastmodel { |
| |
| void |
| FastmodelRemoteGDB::AArch64GdbRegCache::setRegs(ThreadContext *context) const |
| { |
| DPRINTF(GDBAcc, "setRegs in remotegdb \n"); |
| |
| for (int i = 0; i < 31; ++i) |
| context->setReg(int_reg::x(i), r.x[i]); |
| auto pc_state = context->pcState().as<PCState>(); |
| pc_state.set(r.pc); |
| context->pcState(pc_state); |
| context->setMiscRegNoEffect(MISCREG_CPSR, r.cpsr); |
| // Update the stack pointer. This should be done after |
| // updating CPSR/PSTATE since that might affect how SPX gets |
| // mapped. |
| context->setReg(int_reg::Spx, r.spx); |
| |
| // Remove the vector registers update in FastmodelRemoteGDB since it's not |
| // implemented in iris::ThreadContext. |
| warn("Skip update vector registers in remotegdb\n"); |
| |
| context->setMiscRegNoEffect(MISCREG_FPSR, r.fpsr); |
| context->setMiscRegNoEffect(MISCREG_FPCR, r.fpcr); |
| } |
| |
| FastmodelRemoteGDB::FastmodelRemoteGDB(System *_system, |
| ListenSocketConfig _listen_config) |
| : gem5::ArmISA::RemoteGDB(_system, _listen_config) |
| { |
| } |
| |
| bool |
| FastmodelRemoteGDB::readBlob(Addr vaddr, size_t size, char *data) |
| { |
| auto tc = dynamic_cast<Iris::ThreadContext *>(context()); |
| panic_if(!tc, |
| "FastmodelRemoteGdb can only work on Iris::ThreadContext"); |
| tc->readMemWithCurrentMsn(vaddr, size, data); |
| return true; |
| } |
| |
| bool |
| FastmodelRemoteGDB::writeBlob(Addr vaddr, size_t size, const char *data) |
| { |
| auto tc = dynamic_cast<Iris::ThreadContext *>(context()); |
| panic_if(!tc, |
| "FastmodelRemoteGdb can only work on Iris::ThreadContext"); |
| tc->writeMemWithCurrentMsn(vaddr, size, data); |
| return true; |
| } |
| |
| BaseGdbRegCache* |
| FastmodelRemoteGDB::gdbRegs() |
| { |
| if (inAArch64(context())) |
| return ®Cache64; |
| else |
| return ®Cache32; |
| } |
| |
| } // namespace fastmodel |
| } // namespace gem5 |