1 //===-- AuxVector.cpp -------------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 AuxVector::AuxVector(const lldb_private::DataExtractor &data) {
15 void AuxVector::ParseAuxv(const lldb_private::DataExtractor &data) {
16 lldb::offset_t offset = 0;
17 const size_t value_type_size = data.GetAddressByteSize() * 2;
18 while (data.ValidOffsetForDataOfSize(offset, value_type_size)) {
19 // We're not reading an address but an int that could be 32 or 64 bit
20 // depending on the address size, which is what GetAddress does.
21 const uint64_t type = data.GetAddress(&offset);
22 const uint64_t value = data.GetAddress(&offset);
23 if (type == AUXV_AT_NULL)
25 if (type == AUXV_AT_IGNORE)
28 m_auxv_entries[type] = value;
32 llvm::Optional<uint64_t>
33 AuxVector::GetAuxValue(enum EntryType entry_type) const {
34 auto it = m_auxv_entries.find(static_cast<uint64_t>(entry_type));
35 if (it != m_auxv_entries.end())
40 void AuxVector::DumpToLog(lldb_private::Log *log) const {
44 log->PutCString("AuxVector: ");
45 for (auto entry : m_auxv_entries) {
46 log->Printf(" %s [%" PRIu64 "]: %" PRIx64,
47 GetEntryName(static_cast<EntryType>(entry.first)), entry.first,
52 const char *AuxVector::GetEntryName(EntryType type) const {
53 const char *name = "AT_???";
55 #define ENTRY_NAME(_type) \
59 case ENTRY_NAME(AUXV_AT_NULL); break;
60 case ENTRY_NAME(AUXV_AT_IGNORE); break;
61 case ENTRY_NAME(AUXV_AT_EXECFD); break;
62 case ENTRY_NAME(AUXV_AT_PHDR); break;
63 case ENTRY_NAME(AUXV_AT_PHENT); break;
64 case ENTRY_NAME(AUXV_AT_PHNUM); break;
65 case ENTRY_NAME(AUXV_AT_PAGESZ); break;
66 case ENTRY_NAME(AUXV_AT_BASE); break;
67 case ENTRY_NAME(AUXV_AT_FLAGS); break;
68 case ENTRY_NAME(AUXV_AT_ENTRY); break;
69 case ENTRY_NAME(AUXV_AT_NOTELF); break;
70 case ENTRY_NAME(AUXV_AT_UID); break;
71 case ENTRY_NAME(AUXV_AT_EUID); break;
72 case ENTRY_NAME(AUXV_AT_GID); break;
73 case ENTRY_NAME(AUXV_AT_EGID); break;
74 case ENTRY_NAME(AUXV_AT_CLKTCK); break;
75 case ENTRY_NAME(AUXV_AT_PLATFORM); break;
76 case ENTRY_NAME(AUXV_AT_HWCAP); break;
77 case ENTRY_NAME(AUXV_AT_FPUCW); break;
78 case ENTRY_NAME(AUXV_AT_DCACHEBSIZE); break;
79 case ENTRY_NAME(AUXV_AT_ICACHEBSIZE); break;
80 case ENTRY_NAME(AUXV_AT_UCACHEBSIZE); break;
81 case ENTRY_NAME(AUXV_AT_IGNOREPPC); break;
82 case ENTRY_NAME(AUXV_AT_SECURE); break;
83 case ENTRY_NAME(AUXV_AT_BASE_PLATFORM); break;
84 case ENTRY_NAME(AUXV_AT_RANDOM); break;
85 case ENTRY_NAME(AUXV_AT_EXECFN); break;
86 case ENTRY_NAME(AUXV_AT_SYSINFO); break;
87 case ENTRY_NAME(AUXV_AT_SYSINFO_EHDR); break;
88 case ENTRY_NAME(AUXV_AT_L1I_CACHESHAPE); break;
89 case ENTRY_NAME(AUXV_AT_L1D_CACHESHAPE); break;
90 case ENTRY_NAME(AUXV_AT_L2_CACHESHAPE); break;
91 case ENTRY_NAME(AUXV_AT_L3_CACHESHAPE); break;