gdb/somsolib.h

   1 /* HP SOM Shared library declarations for GDB, the GNU Debugger.
   2
   3    Copyright 1992, 1994, 1995, 1998, 1999, 2000, 2003 Free Software
   4    Foundation, Inc.
   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 2 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, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.
  22
  23    Written by the Center for Software Science at the Univerity of Utah
  24    and by Cygnus Support.  */
  25
  26 #ifndef SOMSOLIB_H
  27 #define SOMSOLIB_H
  28
  29 /* Forward decl's for prototypes */
  30 struct target_ops;
  31 struct objfile;
  32 struct section_offsets;
  33
  34 /* Called to add symbols from a shared library to gdb's symbol table. */
  35
  36 #define SOLIB_ADD(filename, from_tty, targ, readsyms) \
  37     som_solib_add (filename, from_tty, targ, readsyms)
  38
  39 extern void som_solib_add (char *, int, struct target_ops *, int);
  40
  41 extern CORE_ADDR som_solib_get_got_by_pc (CORE_ADDR);
  42
  43 extern int som_solib_section_offsets (struct objfile *,
  44                                       struct section_offsets *);
  45
  46 /* Function to be called when the inferior starts up, to discover the
  47    names of shared libraries that are dynamically linked, the base
  48    addresses to which they are linked, and sufficient information to
  49    read in their symbols at a later time.  */
  50
  51 #define SOLIB_CREATE_INFERIOR_HOOK(PID) som_solib_create_inferior_hook()
  52
  53 extern void som_solib_create_inferior_hook (void);
  54
  55 /* Function to be called to remove the connection between debugger and
  56    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  57    (This operation does not remove shared library information from
  58    the debugger, as CLEAR_SOLIB does.)
  59  */
  60 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook (PID)
  61
  62 extern void som_solib_remove_inferior_hook (int);
  63
  64 /* This function is called by the "catch load" command.  It allows
  65    the debugger to be notified by the dynamic linker when a specified
  66    library file (or any library file, if filename is NULL) is loaded.
  67  */
  68 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid, tempflag, filename, cond_string) \
  69    som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
  70
  71 extern void som_solib_create_catch_load_hook (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 som_solib_create_catch_unload_hook (int, int, char *, char *);
  81
  82 /* This function returns TRUE if the dynamic linker has just reported
  83    a load of a library.
  84
  85    This function must be used only when the inferior has stopped in
  86    the dynamic linker hook, or undefined results are guaranteed.
  87  */
  88 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  89    som_solib_have_load_event (pid)
  90
  91 extern int som_solib_have_load_event (int);
  92
  93 /* This function returns a pointer to the string representation of the
  94    pathname of the dynamically-linked library that has just been loaded.
  95
  96    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
  97    or undefined results are guaranteed.
  98
  99    This string's contents are only valid immediately after the
 100    inferior has stopped in the dynamic linker hook, and becomes
 101    invalid as soon as the inferior is continued.  Clients should make
 102    a copy of this string if they wish to continue the inferior and
 103    then access the string.
 104  */
 105 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 106    som_solib_loaded_library_pathname (pid)
 107
 108 extern char *som_solib_loaded_library_pathname (int);
 109
 110 /* This function returns TRUE if the dynamic linker has just reported
 111    an unload of a library.
 112
 113    This function must be used only when the inferior has stopped in
 114    the dynamic linker hook, or undefined results are guaranteed.
 115  */
 116 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 117    som_solib_have_unload_event (pid)
 118
 119 extern int som_solib_have_unload_event (int);
 120
 121 /* This function returns a pointer to the string representation of the
 122    pathname of the dynamically-linked library that has just been unloaded.
 123
 124    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 125    or undefined results are guaranteed.
 126
 127    This string's contents are only valid immediately after the
 128    inferior has stopped in the dynamic linker hook, and becomes
 129    invalid as soon as the inferior is continued.  Clients should make
 130    a copy of this string if they wish to continue the inferior and
 131    then access the string.
 132  */
 133 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 134    som_solib_unloaded_library_pathname (pid)
 135
 136 extern char *som_solib_unloaded_library_pathname (int);
 137
 138 /* This function returns TRUE if pc is the address of an instruction that
 139    lies within the dynamic linker (such as the event hook, or the dld
 140    itself).
 141
 142    This function must be used only when a dynamic linker event has
 143    been caught, and the inferior is being stepped out of the hook, or
 144    undefined results are guaranteed.
 145  */
 146 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 147    som_solib_in_dynamic_linker (pid, pc)
 148
 149 extern int som_solib_in_dynamic_linker (int, CORE_ADDR);
 150
 151 /* This function must be called when the inferior is killed, and the program
 152    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 153    any symbol tables.
 154
 155    Presently, this functionality is not implemented.
 156  */
 157 #define SOLIB_RESTART() \
 158    som_solib_restart ()
 159
 160 extern void som_solib_restart (void);
 161
 162 /* If we can't set a breakpoint, and it's in a shared library, just
 163    disable it.  */
 164
 165 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 166
 167 extern char *som_solib_address (CORE_ADDR);     /* somsolib.c */
 168
 169 /* If ADDR lies in a shared library, return its name.  */
 170
 171 #define PC_SOLIB(addr)  som_solib_address (addr)
 172
 173 extern CORE_ADDR som_solib_get_solib_by_pc (CORE_ADDR addr);
 174
 175 struct so_list;
 176 extern CORE_ADDR som_solib_thread_start_addr (struct so_list *so);
 177
 178 extern void no_shared_libraries (char *ignored, int from_tty);
 179
 180 #endif