| 105 | } |
| 106 | |
| 107 | c_db_sym_t |
| 108 | X_db_search_symbol(db_symtab_t *symtab, db_addr_t off, db_strategy_t strat, |
| 109 | db_expr_t *diffp) |
| 110 | { |
| 111 | c_linker_sym_t lsym; |
| 112 | Elf_Sym *sym, *match; |
| 113 | unsigned long diff; |
| 114 | db_addr_t stoffs = off; |
| 115 | |
| 116 | if (symtab->private == NULL) { |
| 117 | if (!linker_ddb_search_symbol((caddr_t)off, &lsym, &diff)) { |
| 118 | *diffp = (db_expr_t)diff; |
| 119 | return ((c_db_sym_t)lsym); |
| 120 | } |
| 121 | return (NULL); |
| 122 | } |
| 123 | else |
| 124 | stoffs -= DB_PRIVATE(symtab)->relbase; |
| 125 | |
| 126 | diff = ~0UL; |
| 127 | match = NULL; |
| 128 | for (sym = (Elf_Sym*)symtab->start; (char*)sym < symtab->end; sym++) { |
| 129 | if (sym->st_name == 0 || sym->st_shndx == SHN_UNDEF) |
| 130 | continue; |
| 131 | if (stoffs < sym->st_value) |
| 132 | continue; |
| 133 | if (ELF_ST_TYPE(sym->st_info) != STT_OBJECT && |
| 134 | ELF_ST_TYPE(sym->st_info) != STT_FUNC && |
| 135 | ELF_ST_TYPE(sym->st_info) != STT_NOTYPE) |
| 136 | continue; |
| 137 | if ((stoffs - sym->st_value) > diff) |
| 138 | continue; |
| 139 | if ((stoffs - sym->st_value) < diff) { |
| 140 | diff = stoffs - sym->st_value; |
| 141 | match = sym; |
| 142 | } else { |
| 143 | if (match == NULL) |
| 144 | match = sym; |
| 145 | else if (ELF_ST_BIND(match->st_info) == STB_LOCAL && |
| 146 | ELF_ST_BIND(sym->st_info) != STB_LOCAL) |
| 147 | match = sym; |
| 148 | } |
| 149 | if (diff == 0) { |
| 150 | if (strat == DB_STGY_PROC && |
| 151 | ELF_ST_TYPE(sym->st_info) == STT_FUNC && |
| 152 | ELF_ST_BIND(sym->st_info) != STB_LOCAL) |
| 153 | break; |
| 154 | if (strat == DB_STGY_ANY && |
| 155 | ELF_ST_BIND(sym->st_info) != STB_LOCAL) |
| 156 | break; |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | *diffp = (match == NULL) ? off : diff; |
| 161 | return ((c_db_sym_t)match); |
| 162 | } |
| 163 | |
| 164 | bool |
no test coverage detected