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sergeykhbr |
/*
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* Copyright 2018 Sergey Khabarov, sergeykhbr@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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sergeykhbr |
*/
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#include "cmd_status.h"
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namespace debugger {
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CmdStatus::CmdStatus(ITap *tap, ISocInfo *info)
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: ICommand ("status", tap, info) {
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briefDescr_.make_string("Read target's status register");
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detailedDescr_.make_string(
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"Description:\n"
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" Read target's status register as a uint64_t value.\n"
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" Status register bits:\n"
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" [0] - Halt bit. 0 = running; 1 = is halted.\n"
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" [1] - Stepping mode enable bit.\n"
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" [2] - Breakpoint hit signaling bit.\n"
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" [19:4] - Core ID hardwired value.\n"
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"Example:\n"
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" status\n");
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}
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bool CmdStatus::isValid(AttributeType *args) {
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if ((*args)[0u].is_equal(cmdName_.to_string()) && args->size() == 1) {
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return CMD_VALID;
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}
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return CMD_INVALID;
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}
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void CmdStatus::exec(AttributeType *args, AttributeType *res) {
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if (!isValid(args)) {
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generateError(res, "Wrong argument list");
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return;
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}
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res->make_nil();
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Reg64Type t1;
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DsuMapType *pdsu = info_->getpDsu();
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uint64_t addr = reinterpret_cast<uint64_t>(&pdsu->udbg.v.control);
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if (tap_->read(addr, 8, t1.buf) == TAP_ERROR) {
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return;
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}
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res->make_uint64(t1.val);
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#if 0
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// Instr trace info
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addr = reinterpret_cast<uint64_t>(pdsu->ureg.v.instr_buf);
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AttributeType t2;
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t2.make_data(4*8);
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if (tap_->read(addr, 4*8, t2.data()) == TAP_ERROR) {
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return;
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}
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Reg64Type *instr = reinterpret_cast<Reg64Type *>(t2.data());
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RISCV_printf(0, 0, " 3. [%08x] %08x", instr[3].buf32[1], instr[3].buf32[0]);
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RISCV_printf(0, 0, " 2. [%08x] %08x", instr[2].buf32[1], instr[2].buf32[0]);
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RISCV_printf(0, 0, " 1. [%08x] %08x", instr[1].buf32[1], instr[1].buf32[0]);
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RISCV_printf(0, 0, " 0. [%08x] %08x", instr[0].buf32[1], instr[0].buf32[0]);
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#endif
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}
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} // namespace debugger
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