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 */ 141