58 typedef Elf32_Addr Elf_Addr;
59
60
61 typedef Elf32_Ehdr Elf_Ehdr;
62 typedef Elf32_Shdr Elf_Shdr;
63 typedef Elf32_Phdr Elf_Phdr;
64 typedef Elf32_Sym Elf_Sym;
65
66 #if !defined(_ALLBSD_SOURCE) || defined(__APPLE__)
67 #define ELF_ST_TYPE ELF32_ST_TYPE
68 #endif
69 #endif
70
71 #include "globalDefinitions.hpp"
72 #include "memory/allocation.hpp"
73 #include "utilities/decoder.hpp"
74
75
76 class ElfStringTable;
77 class ElfSymbolTable;
78
79
80 // On Solaris/Linux platforms, libjvm.so does contain all private symbols.
81 // ElfFile is basically an elf file parser, which can lookup the symbol
82 // that is the nearest to the given address.
83 // Beware, this code is called from vm error reporting code, when vm is already
84 // in "error" state, so there are scenarios, lookup will fail. We want this
85 // part of code to be very defensive, and bait out if anything went wrong.
86
87 class ElfFile: public CHeapObj<mtInternal> {
88 friend class ElfDecoder;
89 public:
90 ElfFile(const char* filepath);
91 ~ElfFile();
92
93 bool decode(address addr, char* buf, int buflen, int* offset);
94 const char* filepath() {
95 return m_filepath;
96 }
97
132 // is not set at all, or if the file can not be read.
133 // On systems other than linux it always returns false.
134 bool specifies_noexecstack() NOT_LINUX({ return false; });
135
136 protected:
137 ElfFile* m_next;
138
139 private:
140 // file
141 const char* m_filepath;
142 FILE* m_file;
143
144 // Elf header
145 Elf_Ehdr m_elfHdr;
146
147 // symbol tables
148 ElfSymbolTable* m_symbol_tables;
149
150 // string tables
151 ElfStringTable* m_string_tables;
152
153 NullDecoder::decoder_status m_status;
154 };
155
156 #endif // _WINDOWS
157
158 #endif // SHARE_VM_UTILITIES_ELF_FILE_HPP
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58 typedef Elf32_Addr Elf_Addr;
59
60
61 typedef Elf32_Ehdr Elf_Ehdr;
62 typedef Elf32_Shdr Elf_Shdr;
63 typedef Elf32_Phdr Elf_Phdr;
64 typedef Elf32_Sym Elf_Sym;
65
66 #if !defined(_ALLBSD_SOURCE) || defined(__APPLE__)
67 #define ELF_ST_TYPE ELF32_ST_TYPE
68 #endif
69 #endif
70
71 #include "globalDefinitions.hpp"
72 #include "memory/allocation.hpp"
73 #include "utilities/decoder.hpp"
74
75
76 class ElfStringTable;
77 class ElfSymbolTable;
78 class ElfFuncDescTable;
79
80
81 // On Solaris/Linux platforms, libjvm.so does contain all private symbols.
82 // ElfFile is basically an elf file parser, which can lookup the symbol
83 // that is the nearest to the given address.
84 // Beware, this code is called from vm error reporting code, when vm is already
85 // in "error" state, so there are scenarios, lookup will fail. We want this
86 // part of code to be very defensive, and bait out if anything went wrong.
87
88 class ElfFile: public CHeapObj<mtInternal> {
89 friend class ElfDecoder;
90 public:
91 ElfFile(const char* filepath);
92 ~ElfFile();
93
94 bool decode(address addr, char* buf, int buflen, int* offset);
95 const char* filepath() {
96 return m_filepath;
97 }
98
133 // is not set at all, or if the file can not be read.
134 // On systems other than linux it always returns false.
135 bool specifies_noexecstack() NOT_LINUX({ return false; });
136
137 protected:
138 ElfFile* m_next;
139
140 private:
141 // file
142 const char* m_filepath;
143 FILE* m_file;
144
145 // Elf header
146 Elf_Ehdr m_elfHdr;
147
148 // symbol tables
149 ElfSymbolTable* m_symbol_tables;
150
151 // string tables
152 ElfStringTable* m_string_tables;
153
154 // function descriptors table
155 ElfFuncDescTable* m_funcDesc_table;
156
157 NullDecoder::decoder_status m_status;
158 };
159
160 #endif // _WINDOWS
161
162 #endif // SHARE_VM_UTILITIES_ELF_FILE_HPP
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