| 1 | /* Shared library support for RS/6000 (xcoff) object files, for GDB. |
| 2 | Copyright (C) 1991-1992, 1995-1996, 1999-2001, 2007-2012 Free |
| 3 | Software Foundation, Inc. |
| 4 | Contributed by IBM Corporation. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include "defs.h" |
| 22 | #include "bfd.h" |
| 23 | #include "xcoffsolib.h" |
| 24 | #include "inferior.h" |
| 25 | #include "gdbcmd.h" |
| 26 | #include "symfile.h" |
| 27 | #include "frame.h" |
| 28 | #include "gdb_regex.h" |
| 29 | |
| 30 | |
| 31 | /* If ADDR lies in a shared library, return its name. |
| 32 | Note that returned name points to static data whose content is overwritten |
| 33 | by each call. */ |
| 34 | |
| 35 | char * |
| 36 | xcoff_solib_address (CORE_ADDR addr) |
| 37 | { |
| 38 | static char *buffer = NULL; |
| 39 | struct vmap *vp = vmap; |
| 40 | |
| 41 | /* The first vmap entry is for the exec file. */ |
| 42 | |
| 43 | if (vp == NULL) |
| 44 | return NULL; |
| 45 | for (vp = vp->nxt; vp; vp = vp->nxt) |
| 46 | if (vp->tstart <= addr && addr < vp->tend) |
| 47 | { |
| 48 | xfree (buffer); |
| 49 | buffer = xstrprintf ("%s%s%s%s", |
| 50 | vp->name, |
| 51 | *vp->member ? "(" : "", |
| 52 | vp->member, |
| 53 | *vp->member ? ")" : ""); |
| 54 | return buffer; |
| 55 | } |
| 56 | return NULL; |
| 57 | } |
| 58 | |
| 59 | static void solib_info (char *, int); |
| 60 | static void sharedlibrary_command (char *pattern, int from_tty); |
| 61 | |
| 62 | static void |
| 63 | solib_info (char *args, int from_tty) |
| 64 | { |
| 65 | int addr_size = gdbarch_addr_bit (target_gdbarch) / 8; |
| 66 | struct vmap *vp = vmap; |
| 67 | |
| 68 | /* Check for new shared libraries loaded with load (). */ |
| 69 | if (! ptid_equal (inferior_ptid, null_ptid)) |
| 70 | xcoff_relocate_symtab (PIDGET (inferior_ptid)); |
| 71 | |
| 72 | if (vp == NULL || vp->nxt == NULL) |
| 73 | { |
| 74 | printf_unfiltered ("No shared libraries loaded at this time.\n"); |
| 75 | return; |
| 76 | } |
| 77 | |
| 78 | /* Skip over the first vmap, it is the main program, always loaded. */ |
| 79 | vp = vp->nxt; |
| 80 | |
| 81 | printf_unfiltered ("Text Range Data Range " |
| 82 | "Syms Shared Object Library\n"); |
| 83 | |
| 84 | for (; vp != NULL; vp = vp->nxt) |
| 85 | { |
| 86 | printf_unfiltered ("0x%s-0x%s 0x%s-0x%s %s %s%s%s%s\n", |
| 87 | phex (vp->tstart, addr_size), |
| 88 | phex (vp->tend, addr_size), |
| 89 | phex (vp->dstart, addr_size), |
| 90 | phex (vp->dend, addr_size), |
| 91 | vp->loaded ? "Yes" : "No ", |
| 92 | vp->name, |
| 93 | *vp->member ? "(" : "", |
| 94 | vp->member, |
| 95 | *vp->member ? ")" : ""); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | static void |
| 100 | sharedlibrary_command (char *pattern, int from_tty) |
| 101 | { |
| 102 | dont_repeat (); |
| 103 | |
| 104 | /* Check for new shared libraries loaded with load (). */ |
| 105 | if (! ptid_equal (inferior_ptid, null_ptid)) |
| 106 | xcoff_relocate_symtab (PIDGET (inferior_ptid)); |
| 107 | |
| 108 | if (pattern) |
| 109 | { |
| 110 | char *re_err = re_comp (pattern); |
| 111 | |
| 112 | if (re_err) |
| 113 | error (_("Invalid regexp: %s"), re_err); |
| 114 | } |
| 115 | |
| 116 | /* Walk the list of currently loaded shared libraries, and read |
| 117 | symbols for any that match the pattern --- or any whose symbols |
| 118 | aren't already loaded, if no pattern was given. */ |
| 119 | { |
| 120 | int any_matches = 0; |
| 121 | int loaded_any_symbols = 0; |
| 122 | struct vmap *vp = vmap; |
| 123 | |
| 124 | if (!vp) |
| 125 | return; |
| 126 | |
| 127 | /* skip over the first vmap, it is the main program, always loaded. */ |
| 128 | for (vp = vp->nxt; vp; vp = vp->nxt) |
| 129 | if (! pattern |
| 130 | || re_exec (vp->name) |
| 131 | || (*vp->member && re_exec (vp->member))) |
| 132 | { |
| 133 | any_matches = 1; |
| 134 | |
| 135 | if (vp->loaded) |
| 136 | { |
| 137 | if (from_tty) |
| 138 | printf_unfiltered ("Symbols already loaded for %s\n", |
| 139 | vp->name); |
| 140 | } |
| 141 | else |
| 142 | { |
| 143 | if (vmap_add_symbols (vp)) |
| 144 | loaded_any_symbols = 1; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | if (from_tty && pattern && ! any_matches) |
| 149 | printf_unfiltered |
| 150 | ("No loaded shared libraries match the pattern `%s'.\n", pattern); |
| 151 | |
| 152 | if (loaded_any_symbols) |
| 153 | { |
| 154 | /* Getting new symbols may change our opinion about what is |
| 155 | frameless. */ |
| 156 | reinit_frame_cache (); |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | void _initialize_xcoffsolib (void); |
| 162 | |
| 163 | void |
| 164 | _initialize_xcoffsolib (void) |
| 165 | { |
| 166 | add_com ("sharedlibrary", class_files, sharedlibrary_command, |
| 167 | _("Load shared object library symbols for files matching REGEXP.")); |
| 168 | add_info ("sharedlibrary", solib_info, |
| 169 | _("Status of loaded shared object libraries")); |
| 170 | |
| 171 | add_setshow_boolean_cmd ("auto-solib-add", class_support, |
| 172 | &auto_solib_add, _("\ |
| 173 | Set autoloading of shared library symbols."), _("\ |
| 174 | Show autoloading of shared library symbols."), _("\ |
| 175 | If \"on\", symbols from all shared object libraries will be loaded\n\ |
| 176 | automatically when the inferior begins execution, when the dynamic linker\n\ |
| 177 | informs gdb that a new library has been loaded, or when attaching to the\n\ |
| 178 | inferior. Otherwise, symbols must be loaded manually, using \ |
| 179 | `sharedlibrary'."), |
| 180 | NULL, |
| 181 | NULL, /* FIXME: i18n: */ |
| 182 | &setlist, &showlist); |
| 183 | } |