gdb/coff-solib.h

   1 /* COFF (SVR3) Shared library declarations for GDB, the GNU Debugger.
   2    Copyright (C) 1992 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,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifdef __STDC__                 /* Forward decl's for prototypes */
  22 struct target_ops;
  23 #endif
  24
  25 /* Called when we free all symtabs, to free the shared library information
  26    as well. */
  27
  28 #if 0
  29 #define CLEAR_SOLIB                     coff_clear_solib
  30
  31 extern void
  32 coff_clear_solib PARAMS ((void));
  33 #endif
  34
  35 /* Called to add symbols from a shared library to gdb's symbol table. */
  36
  37 #define SOLIB_ADD(filename, from_tty, targ) \
  38     coff_solib_add (filename, from_tty, targ)
  39
  40 extern void
  41 coff_solib_add PARAMS ((char *, int, struct target_ops *));
  42
  43 /* Function to be called when the inferior starts up, to discover the names
  44    of shared libraries that are dynamically linked, the base addresses to
  45    which they are linked, and sufficient information to read in their symbols
  46    at a later time. */
  47
  48 #define SOLIB_CREATE_INFERIOR_HOOK(PID) coff_solib_create_inferior_hook()
  49
  50 extern void
  51 coff_solib_create_inferior_hook PARAMS ((void));        /* solib.c */
  52
  53 /* Function to be called to remove the connection between debugger and
  54    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  55    (This operation does not remove shared library information from
  56    the debugger, as CLEAR_SOLIB does.)
  57
  58    This functionality is presently not implemented for this target.
  59  */
  60 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) (0)
  61
  62 /* This function is called by the "catch load" command.  It allows
  63    the debugger to be notified by the dynamic linker when a specified
  64    library file (or any library file, if filename is NULL) is loaded.
  65
  66    Presently, this functionality is not implemented.
  67  */
  68 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag,filename,cond_string) \
  69    error("catch of library loads/unloads not yet implemented on this platform")
  70
  71 /* This function is called by the "catch unload" command.  It allows
  72    the debugger to be notified by the dynamic linker when a specified
  73    library file (or any library file, if filename is NULL) is unloaded.
  74
  75    Presently, this functionality is not implemented.
  76  */
  77 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename,cond_string) \
  78    error("catch of library loads/unloads not yet implemented on this platform")
  79
  80 /* This function returns TRUE if the dynamic linker has just reported
  81    a load of a library.
  82
  83    This function must be used only when the inferior has stopped in
  84    the dynamic linker hook, or undefined results are guaranteed.
  85
  86    Presently, this functionality is not implemented.
  87  */
  88 /*
  89    #define SOLIB_HAVE_LOAD_EVENT(pid) \
  90    error("catch of library loads/unloads not yet implemented on this platform")
  91  */
  92
  93 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  94 (0)
  95
  96 /* This function returns a pointer to the string representation of the
  97    pathname of the dynamically-linked library that has just been loaded.
  98
  99    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
 100    or undefined results are guaranteed.
 101
 102    This string's contents are only valid immediately after the inferior
 103    has stopped in the dynamic linker hook, and becomes invalid as soon
 104    as the inferior is continued.  Clients should make a copy of this
 105    string if they wish to continue the inferior and then access the string.
 106
 107    Presently, this functionality is not implemented.
 108  */
 109
 110 /*
 111    #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 112    error("catch of library loads/unloads not yet implemented on this platform")
 113  */
 114
 115 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 116 (0)
 117
 118 /* This function returns TRUE if the dynamic linker has just reported
 119    an unload of a library.
 120
 121    This function must be used only when the inferior has stopped in
 122    the dynamic linker hook, or undefined results are guaranteed.
 123
 124    Presently, this functionality is not implemented.
 125  */
 126 /*
 127    #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 128    error("catch of library loads/unloads not yet implemented on this platform")
 129  */
 130
 131 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 132 (0)
 133
 134 /* This function returns a pointer to the string representation of the
 135    pathname of the dynamically-linked library that has just been unloaded.
 136
 137    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 138    or undefined results are guaranteed.
 139
 140    This string's contents are only valid immediately after the inferior
 141    has stopped in the dynamic linker hook, and becomes invalid as soon
 142    as the inferior is continued.  Clients should make a copy of this
 143    string if they wish to continue the inferior and then access the string.
 144
 145    Presently, this functionality is not implemented.
 146  */
 147 /*
 148    #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 149    error("catch of library loads/unloads not yet implemented on this platform")
 150  */
 151
 152 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 153 (0)
 154
 155 /* This function returns TRUE if pc is the address of an instruction that
 156    lies within the dynamic linker (such as the event hook, or the dld
 157    itself).
 158
 159    This function must be used only when a dynamic linker event has been
 160    caught, and the inferior is being stepped out of the hook, or undefined
 161    results are guaranteed.
 162
 163    Presently, this functionality is not implemented.
 164  */
 165
 166 /*
 167    #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 168    error("catch of library loads/unloads not yet implemented on this platform")
 169  */
 170
 171 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 172 (0)
 173
 174 /* This function must be called when the inferior is killed, and the program
 175    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 176    any symbol tables.
 177
 178    Presently, this functionality is not implemented.
 179  */
 180 #define SOLIB_RESTART() \
 181   (0)
 182
 183 /* If we can't set a breakpoint, and it's in a shared library, just
 184    disable it.  */
 185
 186 #if 0
 187 #define DISABLE_UNSETTABLE_BREAK(addr)  coff_solib_address(addr)
 188
 189 extern int
 190 solib_address PARAMS ((CORE_ADDR));     /* solib.c */
 191 #endif