39a1730a82
This is preparation for the next patch, which adds host-side symbolization capabilities to pbtombstone. Bug: 328531087 Change-Id: Id5813ae6b121af784643b1ed76084e49fdca118b
101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
/*
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* Copyright 2024, The Android Open Source Project
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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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*/
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#include "libdebuggerd/utility_host.h"
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#include <sys/prctl.h>
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#include <string>
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#include <android-base/stringprintf.h>
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using android::base::StringPrintf;
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#ifndef PR_MTE_TAG_SHIFT
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#define PR_MTE_TAG_SHIFT 3
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#endif
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#ifndef PR_MTE_TAG_MASK
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#define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
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#endif
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#ifndef PR_MTE_TCF_ASYNC
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#define PR_MTE_TCF_ASYNC (1UL << 2)
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#endif
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#ifndef PR_MTE_TCF_SYNC
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#define PR_MTE_TCF_SYNC (1UL << 1)
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#endif
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#ifndef PR_PAC_APIAKEY
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#define PR_PAC_APIAKEY (1UL << 0)
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#endif
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#ifndef PR_PAC_APIBKEY
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#define PR_PAC_APIBKEY (1UL << 1)
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#endif
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#ifndef PR_PAC_APDAKEY
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#define PR_PAC_APDAKEY (1UL << 2)
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#endif
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#ifndef PR_PAC_APDBKEY
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#define PR_PAC_APDBKEY (1UL << 3)
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#endif
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#ifndef PR_PAC_APGAKEY
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#define PR_PAC_APGAKEY (1UL << 4)
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#endif
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#ifndef PR_TAGGED_ADDR_ENABLE
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#define PR_TAGGED_ADDR_ENABLE (1UL << 0)
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#endif
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#define DESCRIBE_FLAG(flag) \
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if (value & flag) { \
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desc += ", "; \
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desc += #flag; \
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value &= ~flag; \
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}
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static std::string describe_end(long value, std::string& desc) {
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if (value) {
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desc += StringPrintf(", unknown 0x%lx", value);
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}
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return desc.empty() ? "" : " (" + desc.substr(2) + ")";
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}
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std::string describe_tagged_addr_ctrl(long value) {
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std::string desc;
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DESCRIBE_FLAG(PR_TAGGED_ADDR_ENABLE);
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DESCRIBE_FLAG(PR_MTE_TCF_SYNC);
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DESCRIBE_FLAG(PR_MTE_TCF_ASYNC);
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if (value & PR_MTE_TAG_MASK) {
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desc += StringPrintf(", mask 0x%04lx", (value & PR_MTE_TAG_MASK) >> PR_MTE_TAG_SHIFT);
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value &= ~PR_MTE_TAG_MASK;
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}
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return describe_end(value, desc);
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}
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std::string describe_pac_enabled_keys(long value) {
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std::string desc;
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DESCRIBE_FLAG(PR_PAC_APIAKEY);
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DESCRIBE_FLAG(PR_PAC_APIBKEY);
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DESCRIBE_FLAG(PR_PAC_APDAKEY);
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DESCRIBE_FLAG(PR_PAC_APDBKEY);
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DESCRIBE_FLAG(PR_PAC_APGAKEY);
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return describe_end(value, desc);
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}
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