10b57cec5SDimitry Andric //===-- AuxVector.h ---------------------------------------------*- C++ -*-===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric 95ffd83dbSDimitry Andric #ifndef LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_AUXVECTOR_H 105ffd83dbSDimitry Andric #define LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_AUXVECTOR_H 110b57cec5SDimitry Andric 120b57cec5SDimitry Andric #include "lldb/Utility/DataExtractor.h" 130b57cec5SDimitry Andric #include "lldb/Utility/Log.h" 14bdd1243dSDimitry Andric #include <optional> 150b57cec5SDimitry Andric #include <unordered_map> 160b57cec5SDimitry Andric 170b57cec5SDimitry Andric class AuxVector { 180b57cec5SDimitry Andric 190b57cec5SDimitry Andric public: 200b57cec5SDimitry Andric AuxVector(const lldb_private::DataExtractor &data); 210b57cec5SDimitry Andric 220b57cec5SDimitry Andric /// Constants describing the type of entry. 230b57cec5SDimitry Andric /// On Linux, running "LD_SHOW_AUXV=1 ./executable" will spew AUX 240b57cec5SDimitry Andric /// information. Added AUXV prefix to avoid potential conflicts with system- 250b57cec5SDimitry Andric /// defined macros 260b57cec5SDimitry Andric enum EntryType { 270b57cec5SDimitry Andric AUXV_AT_NULL = 0, ///< End of auxv. 280b57cec5SDimitry Andric AUXV_AT_IGNORE = 1, ///< Ignore entry. 290b57cec5SDimitry Andric AUXV_AT_EXECFD = 2, ///< File descriptor of program. 300b57cec5SDimitry Andric AUXV_AT_PHDR = 3, ///< Program headers. 310b57cec5SDimitry Andric AUXV_AT_PHENT = 4, ///< Size of program header. 320b57cec5SDimitry Andric AUXV_AT_PHNUM = 5, ///< Number of program headers. 330b57cec5SDimitry Andric AUXV_AT_PAGESZ = 6, ///< Page size. 340b57cec5SDimitry Andric AUXV_AT_BASE = 7, ///< Interpreter base address. 350b57cec5SDimitry Andric AUXV_AT_FLAGS = 8, ///< Flags. 360b57cec5SDimitry Andric AUXV_AT_ENTRY = 9, ///< Program entry point. 370b57cec5SDimitry Andric AUXV_AT_NOTELF = 10, ///< Set if program is not an ELF. 380b57cec5SDimitry Andric AUXV_AT_UID = 11, ///< UID. 390b57cec5SDimitry Andric AUXV_AT_EUID = 12, ///< Effective UID. 400b57cec5SDimitry Andric AUXV_AT_GID = 13, ///< GID. 410b57cec5SDimitry Andric AUXV_AT_EGID = 14, ///< Effective GID. 420b57cec5SDimitry Andric AUXV_AT_CLKTCK = 17, ///< Clock frequency (e.g. times(2)). 430b57cec5SDimitry Andric AUXV_AT_PLATFORM = 15, ///< String identifying platform. 440b57cec5SDimitry Andric AUXV_AT_HWCAP = 450b57cec5SDimitry Andric 16, ///< Machine dependent hints about processor capabilities. 460b57cec5SDimitry Andric AUXV_AT_FPUCW = 18, ///< Used FPU control word. 470b57cec5SDimitry Andric AUXV_AT_DCACHEBSIZE = 19, ///< Data cache block size. 480b57cec5SDimitry Andric AUXV_AT_ICACHEBSIZE = 20, ///< Instruction cache block size. 490b57cec5SDimitry Andric AUXV_AT_UCACHEBSIZE = 21, ///< Unified cache block size. 500b57cec5SDimitry Andric AUXV_AT_IGNOREPPC = 22, ///< Entry should be ignored. 510b57cec5SDimitry Andric AUXV_AT_SECURE = 23, ///< Boolean, was exec setuid-like? 520b57cec5SDimitry Andric AUXV_AT_BASE_PLATFORM = 24, ///< String identifying real platforms. 530b57cec5SDimitry Andric AUXV_AT_RANDOM = 25, ///< Address of 16 random bytes. 54e8d8bef9SDimitry Andric AUXV_AT_HWCAP2 = 26, ///< Extension of AT_HWCAP. 550b57cec5SDimitry Andric AUXV_AT_EXECFN = 31, ///< Filename of executable. 560b57cec5SDimitry Andric AUXV_AT_SYSINFO = 32, ///< Pointer to the global system page used for system 570b57cec5SDimitry Andric /// calls and other nice things. 580b57cec5SDimitry Andric AUXV_AT_SYSINFO_EHDR = 33, 590b57cec5SDimitry Andric AUXV_AT_L1I_CACHESHAPE = 34, ///< Shapes of the caches. 600b57cec5SDimitry Andric AUXV_AT_L1D_CACHESHAPE = 35, 610b57cec5SDimitry Andric AUXV_AT_L2_CACHESHAPE = 36, 620b57cec5SDimitry Andric AUXV_AT_L3_CACHESHAPE = 37, 630b57cec5SDimitry Andric }; 640b57cec5SDimitry Andric 65bdd1243dSDimitry Andric std::optional<uint64_t> GetAuxValue(enum EntryType entry_type) const; 660b57cec5SDimitry Andric void DumpToLog(lldb_private::Log *log) const; 670b57cec5SDimitry Andric const char *GetEntryName(EntryType type) const; 680b57cec5SDimitry Andric 690b57cec5SDimitry Andric private: 700b57cec5SDimitry Andric void ParseAuxv(const lldb_private::DataExtractor &data); 710b57cec5SDimitry Andric 720b57cec5SDimitry Andric std::unordered_map<uint64_t, uint64_t> m_auxv_entries; 730b57cec5SDimitry Andric }; 740b57cec5SDimitry Andric 750b57cec5SDimitry Andric #endif 76