75 lines
3.1 KiB
C++
75 lines
3.1 KiB
C++
//===-- AuxVector.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_AUXVECTOR_H
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#define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_AUXVECTOR_H
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#include "lldb/Utility/DataExtractor.h"
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#include "lldb/Utility/Log.h"
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#include <unordered_map>
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class AuxVector {
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public:
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AuxVector(const lldb_private::DataExtractor &data);
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/// Constants describing the type of entry.
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/// On Linux, running "LD_SHOW_AUXV=1 ./executable" will spew AUX
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/// information. Added AUXV prefix to avoid potential conflicts with system-
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/// defined macros
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enum EntryType {
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AUXV_AT_NULL = 0, ///< End of auxv.
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AUXV_AT_IGNORE = 1, ///< Ignore entry.
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AUXV_AT_EXECFD = 2, ///< File descriptor of program.
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AUXV_AT_PHDR = 3, ///< Program headers.
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AUXV_AT_PHENT = 4, ///< Size of program header.
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AUXV_AT_PHNUM = 5, ///< Number of program headers.
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AUXV_AT_PAGESZ = 6, ///< Page size.
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AUXV_AT_BASE = 7, ///< Interpreter base address.
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AUXV_AT_FLAGS = 8, ///< Flags.
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AUXV_AT_ENTRY = 9, ///< Program entry point.
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AUXV_AT_NOTELF = 10, ///< Set if program is not an ELF.
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AUXV_AT_UID = 11, ///< UID.
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AUXV_AT_EUID = 12, ///< Effective UID.
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AUXV_AT_GID = 13, ///< GID.
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AUXV_AT_EGID = 14, ///< Effective GID.
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AUXV_AT_CLKTCK = 17, ///< Clock frequency (e.g. times(2)).
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AUXV_AT_PLATFORM = 15, ///< String identifying platform.
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AUXV_AT_HWCAP =
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16, ///< Machine dependent hints about processor capabilities.
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AUXV_AT_FPUCW = 18, ///< Used FPU control word.
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AUXV_AT_DCACHEBSIZE = 19, ///< Data cache block size.
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AUXV_AT_ICACHEBSIZE = 20, ///< Instruction cache block size.
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AUXV_AT_UCACHEBSIZE = 21, ///< Unified cache block size.
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AUXV_AT_IGNOREPPC = 22, ///< Entry should be ignored.
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AUXV_AT_SECURE = 23, ///< Boolean, was exec setuid-like?
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AUXV_AT_BASE_PLATFORM = 24, ///< String identifying real platforms.
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AUXV_AT_RANDOM = 25, ///< Address of 16 random bytes.
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AUXV_AT_HWCAP2 = 26, ///< Extension of AT_HWCAP.
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AUXV_AT_EXECFN = 31, ///< Filename of executable.
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AUXV_AT_SYSINFO = 32, ///< Pointer to the global system page used for system
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/// calls and other nice things.
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AUXV_AT_SYSINFO_EHDR = 33,
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AUXV_AT_L1I_CACHESHAPE = 34, ///< Shapes of the caches.
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AUXV_AT_L1D_CACHESHAPE = 35,
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AUXV_AT_L2_CACHESHAPE = 36,
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AUXV_AT_L3_CACHESHAPE = 37,
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};
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llvm::Optional<uint64_t> GetAuxValue(enum EntryType entry_type) const;
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void DumpToLog(lldb_private::Log *log) const;
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const char *GetEntryName(EntryType type) const;
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private:
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void ParseAuxv(const lldb_private::DataExtractor &data);
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std::unordered_map<uint64_t, uint64_t> m_auxv_entries;
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};
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#endif
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