| Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1 | /** |
| 2 | * @file opjitconv.h |
| 3 | * Convert a jit dump file to an ELF file |
| 4 | * |
| 5 | * @remark Copyright 2007 OProfile authors |
| 6 | * @remark Read the file COPYING |
| 7 | * |
| 8 | * @author Jens Wilke |
| 9 | * @Modifications Maynard Johnson |
| 10 | * @Modifications Philippe Elie |
| 11 | * @Modifications Daniel Hansel |
| 12 | * |
| 13 | * Copyright IBM Corporation 2007 |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #ifndef OPJITCONV_H |
| 18 | #define OPJITCONV_H |
| 19 | |
| 20 | #define OP_JIT_CONV_OK 0 |
| 21 | #define OP_JIT_CONV_FAIL -1 |
| 22 | #define OP_JIT_CONV_NO_DUMPFILE 1 |
| 23 | #define OP_JIT_CONV_NO_ANON_SAMPLES 2 |
| 24 | #define OP_JIT_CONV_NO_MATCHING_ANON_SAMPLES 3 |
| 25 | #define OP_JIT_CONV_NO_JIT_RECS_IN_DUMPFILE 4 |
| 26 | #define OP_JIT_CONV_ALREADY_DONE 5 |
| 27 | #define OP_JIT_CONV_TMPDIR_NOT_REMOVED 6 |
| 28 | |
| 29 | #include <bfd.h> |
| 30 | #include <stddef.h> |
| 31 | #include <sys/stat.h> |
| 32 | |
| 33 | #include "op_list.h" |
| 34 | #include "op_types.h" |
| 35 | |
| 36 | /* Structure that contains all information |
| 37 | * for one function entry in the jit dump file. |
| 38 | * the jit dump file gets mmapped and code and |
| 39 | * symbol_name point directly into the file */ |
| 40 | struct jitentry { |
| 41 | /* linked list. see jitentry_list */ |
| 42 | struct jitentry * next; |
| 43 | /* vma */ |
| 44 | unsigned long long vma; |
| 45 | /* point to code in the memory mapped file */ |
| 46 | void const * code; |
| 47 | /* size of the jitted code */ |
| 48 | int code_size; |
| 49 | /* point to the name in memory mapped jitdump file, or |
| 50 | * to a malloced string, if we have a disambiguation replacement */ |
| 51 | char * symbol_name; |
| 52 | /* sym_name_malloced ==1 means we need to free the memory when done. */ |
| 53 | int sym_name_malloced; |
| 54 | /* seconds since epoch when the code was created */ |
| 55 | unsigned long long life_start; |
| 56 | /* seconds since epoch when the code was overwritten */ |
| 57 | unsigned long long life_end; |
| 58 | /* after ordering and partitioning this is the ELF |
| 59 | * section we put this code to */ |
| 60 | asection * section; |
| 61 | }; |
| 62 | |
| 63 | struct jitentry_debug_line { |
| 64 | struct jitentry_debug_line * next; |
| 65 | struct jr_code_debug_info const * data; |
| 66 | /* seconds since epoch when the code was created */ |
| 67 | unsigned long long life_start; |
| 68 | /* seconds since epoch when the code was overwritten */ |
| 69 | unsigned long long life_end; |
| 70 | void const * end; |
| 71 | }; |
| 72 | |
| 73 | struct op_jitdump_info |
| 74 | { |
| 75 | void * dmp_file; |
| 76 | struct stat dmp_file_stat; |
| 77 | }; |
| 78 | |
| 79 | struct pathname |
| 80 | { |
| 81 | char * name; |
| 82 | struct list_head neighbor; |
| 83 | }; |
| 84 | |
| 85 | /* jitsymbol.c */ |
| 86 | void create_arrays(void); |
| 87 | int resolve_overlaps(unsigned long long start_time); |
| 88 | void disambiguate_symbol_names(void); |
| 89 | |
| 90 | /* parse_dump.c */ |
| 91 | int parse_all(void const * start, void const * end, |
| 92 | unsigned long long end_time); |
| 93 | |
| 94 | /* conversion.c */ |
| 95 | int op_jit_convert(struct op_jitdump_info file_info, char const * elffile, |
| 96 | unsigned long long start_time, unsigned long long end_time); |
| 97 | |
| 98 | /* create_bfd.c */ |
| 99 | bfd * open_elf(char const * filename); |
| 100 | int partition_sections(void); |
| 101 | int fill_sections(void); |
| 102 | asection * create_section(bfd * abfd, char const * section_name, |
| 103 | size_t size, bfd_vma vma, flagword flags); |
| 104 | int fill_section_content(bfd * abfd, asection * section, |
| 105 | void const * b, file_ptr offset, size_t sz); |
| 106 | |
| 107 | /* debug_line.c */ |
| 108 | int init_debug_line_info(bfd * abfd); |
| 109 | int finalize_debug_line_info(bfd * abfd); |
| 110 | |
| 111 | /* jit dump header information */ |
| 112 | extern enum bfd_architecture dump_bfd_arch; |
| 113 | extern int dump_bfd_mach; |
| 114 | extern char const * dump_bfd_target_name; |
| 115 | /* |
| 116 | * list head. The linked list is used during parsing (parse_all) to |
| 117 | * hold all jitentry elements. After parsing, the program works on the |
| 118 | * array structures (entries_symbols_ascending, entries_address_ascending) |
| 119 | * and the linked list is not used any more. |
| 120 | */ |
| 121 | extern struct jitentry * jitentry_list; |
| 122 | /* count of jitentries in the list */ |
| 123 | extern u32 entry_count; |
| 124 | /* list head for debug line information */ |
| 125 | extern struct jitentry_debug_line * jitentry_debug_line_list; |
| 126 | /* maximum space in the entry arrays, needed to add entries */ |
| 127 | extern u32 max_entry_count; |
| 128 | /* array pointing to all jit entries, sorted by symbol names */ |
| 129 | extern struct jitentry ** entries_symbols_ascending; |
| 130 | /* array pointing to all jit entries sorted by address */ |
| 131 | extern struct jitentry ** entries_address_ascending; |
| 132 | /* Global variable for asymbols so we can free the storage later. */ |
| 133 | extern asymbol ** syms; |
| 134 | /* the bfd handle of the ELF file we write */ |
| 135 | extern bfd * cur_bfd; |
| 136 | /* debug flag, print some information */ |
| 137 | extern int debug; |
| 138 | |
| 139 | |
| 140 | #endif /* OPJITCONV_H */ |