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 /* Forward decl's for prototypes */
  27 struct target_ops;
  28 struct objfile;
  29 struct section_offsets;
  30
  31 /* Called to add symbols from a shared library to gdb's symbol table. */
  32
  33 #define SOLIB_ADD(filename, from_tty, targ, readsyms) \
  34     som_solib_add (filename, from_tty, targ, readsyms)
  35
  36 extern void som_solib_add (char *, int, struct target_ops *, int);
  37
  38 extern CORE_ADDR som_solib_get_got_by_pc (CORE_ADDR);
  39
  40 extern int som_solib_section_offsets (struct objfile *,
  41                                       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 som_solib_create_inferior_hook (void);
  51
  52 /* Function to be called to remove the connection between debugger and
  53    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  54    (This operation does not remove shared library information from
  55    the debugger, as CLEAR_SOLIB does.)
  56  */
  57 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook(PID)
  58
  59 extern void som_solib_remove_inferior_hook (int);
  60
  61 /* This function is called by the "catch load" command.  It allows
  62    the debugger to be notified by the dynamic linker when a specified
  63    library file (or any library file, if filename is NULL) is loaded.
  64  */
  65 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag, filename,cond_string) \
  66    som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
  67
  68 extern void som_solib_create_catch_load_hook (int, int, char *, char *);
  69
  70 /* This function is called by the "catch unload" command.  It allows
  71    the debugger to be notified by the dynamic linker when a specified
  72    library file (or any library file, if filename is NULL) is unloaded.
  73  */
  74 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename, cond_string) \
  75    som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
  76
  77 extern void som_solib_create_catch_unload_hook (int, int, char *, char *);
  78
  79 /* This function returns TRUE if the dynamic linker has just reported
  80    a load of a library.
  81
  82    This function must be used only when the inferior has stopped in
  83    the dynamic linker hook, or undefined results are guaranteed.
  84  */
  85 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  86    som_solib_have_load_event (pid)
  87
  88 extern int som_solib_have_load_event (int);
  89
  90 /* This function returns a pointer to the string representation of the
  91    pathname of the dynamically-linked library that has just been loaded.
  92
  93    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
  94    or undefined results are guaranteed.
  95
  96    This string's contents are only valid immediately after the inferior
  97    has stopped in the dynamic linker hook, and becomes invalid as soon
  98    as the inferior is continued.  Clients should make a copy of this
  99    string if they wish to continue the inferior and then access the string.
 100  */
 101 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 102    som_solib_loaded_library_pathname (pid)
 103
 104 extern char *som_solib_loaded_library_pathname (int);
 105
 106 /* This function returns TRUE if the dynamic linker has just reported
 107    an unload of a library.
 108
 109    This function must be used only when the inferior has stopped in
 110    the dynamic linker hook, or undefined results are guaranteed.
 111  */
 112 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 113    som_solib_have_unload_event (pid)
 114
 115 extern int som_solib_have_unload_event (int);
 116
 117 /* This function returns a pointer to the string representation of the
 118    pathname of the dynamically-linked library that has just been unloaded.
 119
 120    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 121    or undefined results are guaranteed.
 122
 123    This string's contents are only valid immediately after the inferior
 124    has stopped in the dynamic linker hook, and becomes invalid as soon
 125    as the inferior is continued.  Clients should make a copy of this
 126    string if they wish to continue the inferior and then access the string.
 127  */
 128 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 129    som_solib_unloaded_library_pathname (pid)
 130
 131 extern char *som_solib_unloaded_library_pathname (int);
 132
 133 /* This function returns TRUE if pc is the address of an instruction that
 134    lies within the dynamic linker (such as the event hook, or the dld
 135    itself).
 136
 137    This function must be used only when a dynamic linker event has been
 138    caught, and the inferior is being stepped out of the hook, or undefined
 139    results are guaranteed.
 140  */
 141 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 142    som_solib_in_dynamic_linker (pid, pc)
 143
 144 extern int som_solib_in_dynamic_linker (int, CORE_ADDR);
 145
 146 /* This function must be called when the inferior is killed, and the program
 147    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 148    any symbol tables.
 149
 150    Presently, this functionality is not implemented.
 151  */
 152 #define SOLIB_RESTART() \
 153    som_solib_restart ()
 154
 155 extern void som_solib_restart (void);
 156
 157 /* If we can't set a breakpoint, and it's in a shared library, just
 158    disable it.  */
 159
 160 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 161
 162 extern char *som_solib_address (CORE_ADDR);     /* somsolib.c */
 163
 164 /* If ADDR lies in a shared library, return its name.  */
 165
 166 #define PC_SOLIB(addr)  som_solib_address (addr)