gdb/somsolib.h

   1 /* HP SOM Shared library declarations for GDB, the GNU Debugger.
   2    Copyright 1992, 1994, 1995, 1998, 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.
  21
  22    Written by the Center for Software Science at the Univerity of Utah
  23    and by Cygnus Support.  */
  24
  25 /* Forward decl's for prototypes */
  26 struct target_ops;
  27 struct objfile;
  28 struct section_offsets;
  29
  30 /* Called to add symbols from a shared library to gdb's symbol table. */
  31
  32 #define SOLIB_ADD(filename, from_tty, targ, readsyms) \
  33     som_solib_add (filename, from_tty, targ, readsyms)
  34
  35 extern void som_solib_add (char *, int, struct target_ops *, int);
  36
  37 extern CORE_ADDR som_solib_get_got_by_pc (CORE_ADDR);
  38
  39 extern int
  40 som_solib_section_offsets (struct objfile *, struct section_offsets *);
  41
  42 /* Function to be called when the inferior starts up, to discover the names
  43    of shared libraries that are dynamically linked, the base addresses to
  44    which they are linked, and sufficient information to read in their symbols
  45    at a later time. */
  46
  47 #define SOLIB_CREATE_INFERIOR_HOOK(PID) som_solib_create_inferior_hook()
  48
  49 extern void som_solib_create_inferior_hook (void);
  50
  51 /* Function to be called to remove the connection between debugger and
  52    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  53    (This operation does not remove shared library information from
  54    the debugger, as CLEAR_SOLIB does.)
  55  */
  56 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook(PID)
  57
  58 extern void som_solib_remove_inferior_hook (int);
  59
  60 /* This function is called by the "catch load" command.  It allows
  61    the debugger to be notified by the dynamic linker when a specified
  62    library file (or any library file, if filename is NULL) is loaded.
  63  */
  64 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag, filename,cond_string) \
  65    som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
  66
  67 extern void som_solib_create_catch_load_hook (int, int, char *, char *);
  68
  69 /* This function is called by the "catch unload" command.  It allows
  70    the debugger to be notified by the dynamic linker when a specified
  71    library file (or any library file, if filename is NULL) is unloaded.
  72  */
  73 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename, cond_string) \
  74    som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
  75
  76 extern void som_solib_create_catch_unload_hook (int, int, char *, char *);
  77
  78 /* This function returns TRUE if the dynamic linker has just reported
  79    a load of a library.
  80
  81    This function must be used only when the inferior has stopped in
  82    the dynamic linker hook, or undefined results are guaranteed.
  83  */
  84 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  85    som_solib_have_load_event (pid)
  86
  87 extern int som_solib_have_load_event (int);
  88
  89 /* This function returns a pointer to the string representation of the
  90    pathname of the dynamically-linked library that has just been loaded.
  91
  92    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
  93    or undefined results are guaranteed.
  94
  95    This string's contents are only valid immediately after the inferior
  96    has stopped in the dynamic linker hook, and becomes invalid as soon
  97    as the inferior is continued.  Clients should make a copy of this
  98    string if they wish to continue the inferior and then access the string.
  99  */
 100 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 101    som_solib_loaded_library_pathname (pid)
 102
 103 extern char *som_solib_loaded_library_pathname (int);
 104
 105 /* This function returns TRUE if the dynamic linker has just reported
 106    an unload of a library.
 107
 108    This function must be used only when the inferior has stopped in
 109    the dynamic linker hook, or undefined results are guaranteed.
 110  */
 111 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 112    som_solib_have_unload_event (pid)
 113
 114 extern int som_solib_have_unload_event (int);
 115
 116 /* This function returns a pointer to the string representation of the
 117    pathname of the dynamically-linked library that has just been unloaded.
 118
 119    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 120    or undefined results are guaranteed.
 121
 122    This string's contents are only valid immediately after the inferior
 123    has stopped in the dynamic linker hook, and becomes invalid as soon
 124    as the inferior is continued.  Clients should make a copy of this
 125    string if they wish to continue the inferior and then access the string.
 126  */
 127 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 128    som_solib_unloaded_library_pathname (pid)
 129
 130 extern char *som_solib_unloaded_library_pathname (int);
 131
 132 /* This function returns TRUE if pc is the address of an instruction that
 133    lies within the dynamic linker (such as the event hook, or the dld
 134    itself).
 135
 136    This function must be used only when a dynamic linker event has been
 137    caught, and the inferior is being stepped out of the hook, or undefined
 138    results are guaranteed.
 139  */
 140 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 141    som_solib_in_dynamic_linker (pid, pc)
 142
 143 extern int som_solib_in_dynamic_linker (int, CORE_ADDR);
 144
 145 /* This function must be called when the inferior is killed, and the program
 146    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 147    any symbol tables.
 148
 149    Presently, this functionality is not implemented.
 150  */
 151 #define SOLIB_RESTART() \
 152    som_solib_restart ()
 153
 154 extern void som_solib_restart (void);
 155
 156 /* If we can't set a breakpoint, and it's in a shared library, just
 157    disable it.  */
 158
 159 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 160
 161 extern char *som_solib_address (CORE_ADDR);     /* somsolib.c */
 162
 163 /* If ADDR lies in a shared library, return its name.  */
 164
 165 #define PC_SOLIB(addr)  som_solib_address (addr)