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 names
  47    of shared libraries that are dynamically linked, the base addresses to
  48    which they are linked, and sufficient information to read in their symbols
  49    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 inferior
 100    has stopped in the dynamic linker hook, and becomes invalid as soon
 101    as the inferior is continued.  Clients should make a copy of this
 102    string if they wish to continue the inferior and then access the string.
 103  */
 104 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 105    som_solib_loaded_library_pathname (pid)
 106
 107 extern char *som_solib_loaded_library_pathname (int);
 108
 109 /* This function returns TRUE if the dynamic linker has just reported
 110    an unload of a library.
 111
 112    This function must be used only when the inferior has stopped in
 113    the dynamic linker hook, or undefined results are guaranteed.
 114  */
 115 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 116    som_solib_have_unload_event (pid)
 117
 118 extern int som_solib_have_unload_event (int);
 119
 120 /* This function returns a pointer to the string representation of the
 121    pathname of the dynamically-linked library that has just been unloaded.
 122
 123    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 124    or undefined results are guaranteed.
 125
 126    This string's contents are only valid immediately after the inferior
 127    has stopped in the dynamic linker hook, and becomes invalid as soon
 128    as the inferior is continued.  Clients should make a copy of this
 129    string if they wish to continue the inferior and then access the string.
 130  */
 131 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 132    som_solib_unloaded_library_pathname (pid)
 133
 134 extern char *som_solib_unloaded_library_pathname (int);
 135
 136 /* This function returns TRUE if pc is the address of an instruction that
 137    lies within the dynamic linker (such as the event hook, or the dld
 138    itself).
 139
 140    This function must be used only when a dynamic linker event has been
 141    caught, and the inferior is being stepped out of the hook, or undefined
 142    results are guaranteed.
 143  */
 144 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 145    som_solib_in_dynamic_linker (pid, pc)
 146
 147 extern int som_solib_in_dynamic_linker (int, CORE_ADDR);
 148
 149 /* This function must be called when the inferior is killed, and the program
 150    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 151    any symbol tables.
 152
 153    Presently, this functionality is not implemented.
 154  */
 155 #define SOLIB_RESTART() \
 156    som_solib_restart ()
 157
 158 extern void som_solib_restart (void);
 159
 160 /* If we can't set a breakpoint, and it's in a shared library, just
 161    disable it.  */
 162
 163 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 164
 165 extern char *som_solib_address (CORE_ADDR);     /* somsolib.c */
 166
 167 /* If ADDR lies in a shared library, return its name.  */
 168
 169 #define PC_SOLIB(addr)  som_solib_address (addr)
 170
 171 extern CORE_ADDR som_solib_get_solib_by_pc (CORE_ADDR addr);
 172
 173 struct so_list;
 174 extern CORE_ADDR so_lib_thread_start_addr (struct so_list *so);
 175
 176 extern void no_shared_libraries (char *ignored, int from_tty);
 177
 178 #endif