| 1 | /* Shared library declarations for GDB, the GNU Debugger. |
| 2 | Copyright (C) 1992, 1998 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GDB. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #ifdef __STDC__ /* Forward decl's for prototypes */ |
| 21 | struct target_ops; |
| 22 | #endif |
| 23 | |
| 24 | /* Called when we free all symtabs, to free the shared library information |
| 25 | as well. */ |
| 26 | |
| 27 | #define CLEAR_SOLIB clear_solib |
| 28 | |
| 29 | extern void |
| 30 | clear_solib PARAMS ((void)); |
| 31 | |
| 32 | /* Called to add symbols from a shared library to gdb's symbol table. */ |
| 33 | |
| 34 | #define SOLIB_ADD(filename, from_tty, targ) \ |
| 35 | solib_add (filename, from_tty, targ) |
| 36 | |
| 37 | extern void |
| 38 | solib_add PARAMS ((char *, int, struct target_ops *)); |
| 39 | |
| 40 | /* Function to be called when the inferior starts up, to discover the names |
| 41 | of shared libraries that are dynamically linked, the base addresses to |
| 42 | which they are linked, and sufficient information to read in their symbols |
| 43 | at a later time. */ |
| 44 | |
| 45 | #define SOLIB_CREATE_INFERIOR_HOOK(PID) solib_create_inferior_hook() |
| 46 | |
| 47 | /* Function to be called to remove the connection between debugger and |
| 48 | dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK. |
| 49 | (This operation does not remove shared library information from |
| 50 | the debugger, as CLEAR_SOLIB does.) |
| 51 | |
| 52 | This functionality is presently not implemented for this target. |
| 53 | */ |
| 54 | #define SOLIB_REMOVE_INFERIOR_HOOK(PID) (0) |
| 55 | |
| 56 | extern void |
| 57 | solib_create_inferior_hook PARAMS((void)); /* solib.c */ |
| 58 | |
| 59 | /* This function is called by the "catch load" command. It allows |
| 60 | the debugger to be notified by the dynamic linker when a specified |
| 61 | library file (or any library file, if filename is NULL) is loaded. |
| 62 | |
| 63 | Presently, this functionality is not implemented. |
| 64 | */ |
| 65 | #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag,filename,cond_string) \ |
| 66 | error("catch of library loads/unloads not yet implemented on this platform") |
| 67 | |
| 68 | /* This function is called by the "catch unload" command. It allows |
| 69 | the debugger to be notified by the dynamic linker when a specified |
| 70 | library file (or any library file, if filename is NULL) is unloaded. |
| 71 | |
| 72 | Presently, this functionality is not implemented. |
| 73 | */ |
| 74 | #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename,cond_string) \ |
| 75 | error("catch of library loads/unloads not yet implemented on this platform") |
| 76 | |
| 77 | /* This function returns TRUE if the dynamic linker has just reported |
| 78 | a load of a library. |
| 79 | |
| 80 | This function must be used only when the inferior has stopped in |
| 81 | the dynamic linker hook, or undefined results are guaranteed. |
| 82 | |
| 83 | Presently, this functionality is not implemented. |
| 84 | */ |
| 85 | |
| 86 | /* |
| 87 | #define SOLIB_HAVE_LOAD_EVENT(pid) \ |
| 88 | error("catch of library loads/unloads not yet implemented on this platform") |
| 89 | */ |
| 90 | |
| 91 | #define SOLIB_HAVE_LOAD_EVENT(pid) \ |
| 92 | (0) |
| 93 | |
| 94 | /* This function returns a pointer to the string representation of the |
| 95 | pathname of the dynamically-linked library that has just been loaded. |
| 96 | |
| 97 | This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE, |
| 98 | or undefined results are guaranteed. |
| 99 | |
| 100 | This string's contents are only valid immediately after the inferior |
| 101 | has stopped in the dynamic linker hook, and becomes invalid as soon |
| 102 | as the inferior is continued. Clients should make a copy of this |
| 103 | string if they wish to continue the inferior and then access the string. |
| 104 | |
| 105 | Presently, this functionality is not implemented. |
| 106 | */ |
| 107 | |
| 108 | /* |
| 109 | #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \ |
| 110 | error("catch of library loads/unloads not yet implemented on this platform") |
| 111 | */ |
| 112 | |
| 113 | #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \ |
| 114 | (0) |
| 115 | |
| 116 | /* This function returns TRUE if the dynamic linker has just reported |
| 117 | an unload of a library. |
| 118 | |
| 119 | This function must be used only when the inferior has stopped in |
| 120 | the dynamic linker hook, or undefined results are guaranteed. |
| 121 | |
| 122 | Presently, this functionality is not implemented. |
| 123 | */ |
| 124 | /* |
| 125 | #define SOLIB_HAVE_UNLOAD_EVENT(pid) \ |
| 126 | error("catch of library loads/unloads not yet implemented on this platform") |
| 127 | */ |
| 128 | |
| 129 | #define SOLIB_HAVE_UNLOAD_EVENT(pid) \ |
| 130 | (0) |
| 131 | |
| 132 | /* This function returns a pointer to the string representation of the |
| 133 | pathname of the dynamically-linked library that has just been unloaded. |
| 134 | |
| 135 | This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE, |
| 136 | or undefined results are guaranteed. |
| 137 | |
| 138 | This string's contents are only valid immediately after the inferior |
| 139 | has stopped in the dynamic linker hook, and becomes invalid as soon |
| 140 | as the inferior is continued. Clients should make a copy of this |
| 141 | string if they wish to continue the inferior and then access the string. |
| 142 | |
| 143 | Presently, this functionality is not implemented. |
| 144 | */ |
| 145 | /* |
| 146 | #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \ |
| 147 | error("catch of library loads/unloads not yet implemented on this platform") |
| 148 | */ |
| 149 | |
| 150 | #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \ |
| 151 | (0) |
| 152 | |
| 153 | /* This function returns TRUE if pc is the address of an instruction that |
| 154 | lies within the dynamic linker (such as the event hook, or the dld |
| 155 | itself). |
| 156 | |
| 157 | This function must be used only when a dynamic linker event has been |
| 158 | caught, and the inferior is being stepped out of the hook, or undefined |
| 159 | results are guaranteed. |
| 160 | |
| 161 | Presently, this functionality is not implemented. |
| 162 | */ |
| 163 | |
| 164 | /* |
| 165 | #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \ |
| 166 | error("catch of library loads/unloads not yet implemented on this platform") |
| 167 | */ |
| 168 | |
| 169 | #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \ |
| 170 | (0) |
| 171 | |
| 172 | /* This function must be called when the inferior is killed, and the program |
| 173 | restarted. This is not the same as CLEAR_SOLIB, in that it doesn't discard |
| 174 | any symbol tables. |
| 175 | |
| 176 | Presently, this functionality is not implemented. |
| 177 | */ |
| 178 | #define SOLIB_RESTART() \ |
| 179 | (0) |
| 180 | |
| 181 | /* If we can't set a breakpoint, and it's in a shared library, just |
| 182 | disable it. */ |
| 183 | |
| 184 | #define DISABLE_UNSETTABLE_BREAK(addr) (solib_address(addr) != NULL) |
| 185 | |
| 186 | extern char * |
| 187 | solib_address PARAMS ((CORE_ADDR)); /* solib.c */ |
| 188 | |
| 189 | /* If ADDR lies in a shared library, return its name. */ |
| 190 | |
| 191 | #define PC_SOLIB(addr) solib_address (addr) |
| 192 | |
| 193 | #ifdef SVR4_SHARED_LIBS |
| 194 | |
| 195 | /* Return 1 if PC lies in the dynamic symbol resolution code of the |
| 196 | SVR4 run time loader. */ |
| 197 | |
| 198 | #define IN_SOLIB_DYNSYM_RESOLVE_CODE(pc) in_svr4_dynsym_resolve_code (pc) |
| 199 | |
| 200 | extern int |
| 201 | in_svr4_dynsym_resolve_code PARAMS ((CORE_ADDR)); |
| 202 | |
| 203 | #endif |