elf_object.hh (10880:61a56f76222b) elf_object.hh (11389:1e55f16160cb)
1/*
2 * Copyright (c) 2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 48 unchanged lines hidden (view full) ---

57
58 //These values are provided to a linux process by the kernel, so we
59 //need to keep them around.
60 Addr _programHeaderTable;
61 uint16_t _programHeaderSize;
62 uint16_t _programHeaderCount;
63 std::set<std::string> sectionNames;
64
1/*
2 * Copyright (c) 2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

--- 48 unchanged lines hidden (view full) ---

57
58 //These values are provided to a linux process by the kernel, so we
59 //need to keep them around.
60 Addr _programHeaderTable;
61 uint16_t _programHeaderSize;
62 uint16_t _programHeaderCount;
63 std::set<std::string> sectionNames;
64
65 ElfObject *interpreter;
66
67 // An interpreter load bias is the location in the process address space
68 // where the interpreter is chosen to reside. Typically, this is carved
69 // out of the top of the mmap reserve section.
70 Addr ldBias;
71
72 // The interpreter is typically a relocatable shared library and will
73 // have a default value of zero which means that it does not care where
74 // it is placed. However, the loader can be compiled and linked so that
75 // it does care and needs a specific entry point.
76 bool relocate;
77
78 // The ldMin and ldMax fields are required to know how large of an
79 // area is required to map the interpreter.
80 Addr ldMin;
81 Addr ldMax;
82
65 /// Helper functions for loadGlobalSymbols() and loadLocalSymbols().
66 bool loadSomeSymbols(SymbolTable *symtab, int binding, Addr mask);
67
68 ElfObject(const std::string &_filename, size_t _len, uint8_t *_data,
69 Arch _arch, OpSys _opSys);
70
71 void getSections();
72 bool sectionExists(std::string sec);
73
74 std::vector<Segment> extraSegments;
75
76 public:
77 virtual ~ElfObject() {}
78
79 bool loadSections(PortProxy& memProxy,
80 Addr addrMask = std::numeric_limits<Addr>::max(),
83 /// Helper functions for loadGlobalSymbols() and loadLocalSymbols().
84 bool loadSomeSymbols(SymbolTable *symtab, int binding, Addr mask);
85
86 ElfObject(const std::string &_filename, size_t _len, uint8_t *_data,
87 Arch _arch, OpSys _opSys);
88
89 void getSections();
90 bool sectionExists(std::string sec);
91
92 std::vector<Segment> extraSegments;
93
94 public:
95 virtual ~ElfObject() {}
96
97 bool loadSections(PortProxy& memProxy,
98 Addr addrMask = std::numeric_limits<Addr>::max(),
81 Addr offset = 0);
99 Addr offset = 0) override;
82 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
100 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
83 std::numeric_limits::max());
101 std::numeric_limits<Addr>::max()) override;
84 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
102 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
85 std::numeric_limits::max());
103 std::numeric_limits<Addr>::max()) override;
86 virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask =
104 virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask =
87 std::numeric_limits::max());
105 std::numeric_limits<Addr>::max()) override;
88
106
89 virtual bool isDynamic() { return sectionExists(".interp"); }
90 virtual bool hasTLS() { return sectionExists(".tbss"); }
107 virtual ObjectFile *getInterpreter() const override
108 { return interpreter; }
109 virtual Addr bias() const override { return ldBias; }
110 virtual bool relocatable() const override { return relocate; }
111 virtual Addr mapSize() const override { return ldMax - ldMin; }
112 virtual void updateBias(Addr bias_addr) override;
91
113
114 virtual bool hasTLS() override { return sectionExists(".tbss"); }
115
92 static ObjectFile *tryFile(const std::string &fname,
116 static ObjectFile *tryFile(const std::string &fname,
93 size_t len, uint8_t *data);
117 size_t len, uint8_t *data,
118 bool skip_interp_check = false);
94 Addr programHeaderTable() {return _programHeaderTable;}
95 uint16_t programHeaderSize() {return _programHeaderSize;}
96 uint16_t programHeaderCount() {return _programHeaderCount;}
97};
98
99#endif // __ELF_OBJECT_HH__
119 Addr programHeaderTable() {return _programHeaderTable;}
120 uint16_t programHeaderSize() {return _programHeaderSize;}
121 uint16_t programHeaderCount() {return _programHeaderCount;}
122};
123
124#endif // __ELF_OBJECT_HH__