| 1 | /* Shared library support for RS/6000 (xcoff) object files, for GDB. |
| 2 | Copyright 1991, 1992 Free Software Foundation. |
| 3 | Contributed by IBM Corporation. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | #include <sys/types.h> |
| 22 | #include <sys/ldr.h> |
| 23 | |
| 24 | #include "defs.h" |
| 25 | #include "bfd.h" |
| 26 | #include "xcoffsolib.h" |
| 27 | |
| 28 | #ifdef SOLIB_SYMBOLS_MANUAL |
| 29 | |
| 30 | extern struct symtab *current_source_symtab; |
| 31 | extern int current_source_line; |
| 32 | |
| 33 | /* The real work of adding a shared library file to the symtab and |
| 34 | the section list. */ |
| 35 | |
| 36 | void |
| 37 | solib_add (arg_string, from_tty, target) |
| 38 | char *arg_string; |
| 39 | int from_tty; |
| 40 | struct target_ops *target; |
| 41 | { |
| 42 | char *val; |
| 43 | struct vmap *vp = vmap; |
| 44 | struct objfile *obj; |
| 45 | struct symtab *saved_symtab; |
| 46 | int saved_line; |
| 47 | |
| 48 | int loaded = 0; /* true if any shared obj loaded */ |
| 49 | int matched = 0; /* true if any shared obj matched */ |
| 50 | |
| 51 | if (arg_string == 0) |
| 52 | re_comp ("."); |
| 53 | else if (val = (char *) re_comp (arg_string)) { |
| 54 | error ("Invalid regexp: %s", val); |
| 55 | } |
| 56 | if (!vp || !vp->nxt) |
| 57 | return; |
| 58 | |
| 59 | /* save current symbol table and line number, in case they get changed |
| 60 | in symbol loading process. */ |
| 61 | |
| 62 | saved_symtab = current_source_symtab; |
| 63 | saved_line = current_source_line; |
| 64 | |
| 65 | /* skip over the first vmap, it is the main program, always loaded. */ |
| 66 | vp = vp->nxt; |
| 67 | |
| 68 | for (; vp; vp = vp->nxt) { |
| 69 | |
| 70 | if (re_exec (vp->name) || (*vp->member && re_exec (vp->member))) { |
| 71 | |
| 72 | matched = 1; |
| 73 | |
| 74 | /* if already loaded, continue with the next one. */ |
| 75 | if (vp->loaded) { |
| 76 | |
| 77 | printf ("%s%s%s%s: already loaded.\n", |
| 78 | *vp->member ? "(" : "", |
| 79 | vp->member, |
| 80 | *vp->member ? ") " : "", |
| 81 | vp->name); |
| 82 | continue; |
| 83 | } |
| 84 | |
| 85 | printf ("Loading %s%s%s%s...", |
| 86 | *vp->member ? "(" : "", |
| 87 | vp->member, |
| 88 | *vp->member ? ") " : "", |
| 89 | vp->name); |
| 90 | fflush (stdout); |
| 91 | |
| 92 | /* This is gross and doesn't work. If this code is re-enabled, |
| 93 | just stick a objfile member into the struct vmap; that's the |
| 94 | way solib.c (for SunOS/SVR4) does it. */ |
| 95 | obj = lookup_objfile_bfd (vp->bfd); |
| 96 | if (!obj) { |
| 97 | warning ("\nObj structure for the shared object not found. Loading failed."); |
| 98 | continue; |
| 99 | } |
| 100 | |
| 101 | syms_from_objfile (obj, 0, 0, 0); |
| 102 | new_symfile_objfile (obj, 0, 0); |
| 103 | vmap_symtab (vp, 0, 0); |
| 104 | printf ("Done.\n"); |
| 105 | loaded = vp->loaded = 1; |
| 106 | } |
| 107 | } |
| 108 | /* if any shared object is loaded, then misc_func_vector needs sorting. */ |
| 109 | if (loaded) { |
| 110 | #if 0 |
| 111 | sort_misc_function_vector (); |
| 112 | #endif |
| 113 | current_source_symtab = saved_symtab; |
| 114 | current_source_line = saved_line; |
| 115 | |
| 116 | /* Getting new symbols might change our opinion about what is frameless. |
| 117 | Is this correct?? FIXME. */ |
| 118 | /* reinit_frame_cache(); */ |
| 119 | } |
| 120 | else if (!matched) |
| 121 | printf ("No matching shared object found.\n"); |
| 122 | } |
| 123 | #endif /* SOLIB_SYMBOLS_MANUAL */ |
| 124 | |
| 125 | /* Return the module name of a given text address. Note that returned buffer |
| 126 | is not persistent. */ |
| 127 | |
| 128 | char * |
| 129 | pc_load_segment_name (addr) |
| 130 | CORE_ADDR addr; |
| 131 | { |
| 132 | static char buffer [BUFSIZ]; |
| 133 | struct vmap *vp = vmap; |
| 134 | |
| 135 | buffer [0] = buffer [1] = '\0'; |
| 136 | for (; vp; vp = vp->nxt) |
| 137 | if (vp->tstart <= addr && addr < vp->tend) { |
| 138 | if (*vp->member) { |
| 139 | buffer [0] = '('; |
| 140 | strcat (&buffer[1], vp->member); |
| 141 | strcat (buffer, ")"); |
| 142 | } |
| 143 | strcat (buffer, vp->name); |
| 144 | return buffer; |
| 145 | } |
| 146 | return "(unknown load module)"; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | solib_info (ldi) |
| 151 | register struct ld_info *ldi; |
| 152 | { |
| 153 | |
| 154 | struct vmap *vp = vmap; |
| 155 | |
| 156 | if (!vp || !vp->nxt) { |
| 157 | printf("No shared libraries loaded at this time.\n"); |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | /* skip over the first vmap, it is the main program, always loaded. */ |
| 162 | vp = vp->nxt; |
| 163 | |
| 164 | printf ("\ |
| 165 | Text Range Data Range Syms Shared Object Library\n"); |
| 166 | |
| 167 | for (; vp; vp = vp->nxt) { |
| 168 | |
| 169 | printf ("0x%08x-0x%08x 0x%08x-0x%08x %s %s%s%s%s\n", |
| 170 | vp->tstart, vp->tend, |
| 171 | vp->dstart, vp->dend, |
| 172 | vp->loaded ? "Yes" : "No ", |
| 173 | *vp->member ? "(" : "", |
| 174 | vp->member, |
| 175 | *vp->member ? ") " : "", |
| 176 | vp->name); |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | #ifdef SOLIB_SYMBOLS_MANUAL |
| 181 | void |
| 182 | sharedlibrary_command (args, from_tty) |
| 183 | char *args; |
| 184 | int from_tty; |
| 185 | { |
| 186 | dont_repeat(); |
| 187 | solib_add (args, from_tty, (struct target_ops *)0); |
| 188 | } |
| 189 | #endif /* SOLIB_SYMBOLS_MANUAL */ |
| 190 | |
| 191 | void |
| 192 | _initialize_solib() |
| 193 | { |
| 194 | |
| 195 | #ifdef SOLIB_SYMBOLS_MANUAL |
| 196 | add_com("sharedlibrary", class_files, sharedlibrary_command, |
| 197 | "Load shared object library symbols for files matching REGEXP."); |
| 198 | #endif |
| 199 | add_info("sharedlibrary", solib_info, |
| 200 | "Status of loaded shared object libraries"); |
| 201 | } |