gdb/somsolib.h

   1 /* HP SOM 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, Boston, MA 02111-1307, USA.
  19
  20 Written by the Center for Software Science at the Univerity of Utah
  21 and by Cygnus Support.  */
  22
  23 #ifdef __STDC__         /* Forward decl's for prototypes */
  24 struct target_ops;
  25 struct objfile;
  26 struct section_offsets;
  27 #endif
  28
  29 /* Called to add symbols from a shared library to gdb's symbol table. */
  30
  31 #define SOLIB_ADD(filename, from_tty, targ) \
  32     som_solib_add (filename, from_tty, targ)
  33
  34 extern void
  35 som_solib_add PARAMS ((char *, int, struct target_ops *));
  36
  37 extern CORE_ADDR
  38 som_solib_get_got_by_pc PARAMS ((CORE_ADDR));
  39
  40 extern int
  41 som_solib_section_offsets PARAMS ((struct objfile *, struct section_offsets *));
  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) som_solib_create_inferior_hook()
  49
  50 extern void
  51 som_solib_create_inferior_hook PARAMS((void));
  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 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook(PID)
  59
  60 extern void
  61 som_solib_remove_inferior_hook PARAMS((int));
  62
  63 /* This function is called by the "catch load" command.  It allows
  64    the debugger to be notified by the dynamic linker when a specified
  65    library file (or any library file, if filename is NULL) is loaded.
  66    */
  67 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag, filename,cond_string) \
  68    som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
  69
  70 extern void
  71 som_solib_create_catch_load_hook PARAMS((int, int, char *, char *));
  72
  73 /* This function is called by the "catch unload" command.  It allows
  74    the debugger to be notified by the dynamic linker when a specified
  75    library file (or any library file, if filename is NULL) is unloaded.
  76    */
  77 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename, cond_string) \
  78    som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
  79
  80 extern void
  81 som_solib_create_catch_unload_hook PARAMS((int, int, char *, char *));
  82
  83 /* This function returns TRUE if the dynamic linker has just reported
  84    a load of a library.
  85
  86    This function must be used only when the inferior has stopped in
  87    the dynamic linker hook, or undefined results are guaranteed.
  88    */
  89 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  90    som_solib_have_load_event (pid)
  91
  92 extern int
  93 som_solib_have_load_event PARAMS((int));
  94
  95 /* This function returns a pointer to the string representation of the
  96    pathname of the dynamically-linked library that has just been loaded.
  97
  98    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
  99    or undefined results are guaranteed.
 100
 101    This string's contents are only valid immediately after the inferior
 102    has stopped in the dynamic linker hook, and becomes invalid as soon
 103    as the inferior is continued.  Clients should make a copy of this
 104    string if they wish to continue the inferior and then access the string.
 105    */
 106 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 107    som_solib_loaded_library_pathname (pid)
 108
 109 extern char *
 110 som_solib_loaded_library_pathname PARAMS((int));
 111
 112 /* This function returns TRUE if the dynamic linker has just reported
 113    an unload of a library.
 114
 115    This function must be used only when the inferior has stopped in
 116    the dynamic linker hook, or undefined results are guaranteed.
 117    */
 118 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 119    som_solib_have_unload_event (pid)
 120
 121 extern int
 122 som_solib_have_unload_event PARAMS((int));
 123
 124 /* This function returns a pointer to the string representation of the
 125    pathname of the dynamically-linked library that has just been unloaded.
 126
 127    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 128    or undefined results are guaranteed.
 129
 130    This string's contents are only valid immediately after the inferior
 131    has stopped in the dynamic linker hook, and becomes invalid as soon
 132    as the inferior is continued.  Clients should make a copy of this
 133    string if they wish to continue the inferior and then access the string.
 134    */
 135 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 136    som_solib_unloaded_library_pathname (pid)
 137
 138 extern char *
 139 som_solib_unloaded_library_pathname PARAMS((int));
 140
 141 /* This function returns TRUE if pc is the address of an instruction that
 142    lies within the dynamic linker (such as the event hook, or the dld
 143    itself).
 144
 145    This function must be used only when a dynamic linker event has been
 146    caught, and the inferior is being stepped out of the hook, or undefined
 147    results are guaranteed.
 148    */
 149 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 150    som_solib_in_dynamic_linker (pid, pc)
 151
 152 extern int
 153 som_solib_in_dynamic_linker PARAMS((int, CORE_ADDR));
 154
 155 /* This function must be called when the inferior is killed, and the program
 156    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 157    any symbol tables.
 158
 159    Presently, this functionality is not implemented.
 160    */
 161 #define SOLIB_RESTART() \
 162    som_solib_restart ()
 163
 164 extern void
 165 som_solib_restart PARAMS((void));
 166
 167 /* If we can't set a breakpoint, and it's in a shared library, just
 168    disable it.  */
 169
 170 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 171
 172 extern char *
 173 som_solib_address PARAMS ((CORE_ADDR));         /* somsolib.c */
 174
 175 /* If ADDR lies in a shared library, return its name.  */
 176
 177 #define PC_SOLIB(addr)  som_solib_address (addr)