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,
  19    Boston, MA 02111-1307, USA.
  20
  21    Written by the Center for Software Science at the Univerity of Utah
  22    and by Cygnus Support.  */
  23
  24 /* Forward decl's for prototypes */
  25 struct target_ops;
  26 struct objfile;
  27 struct section_offsets;
  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 som_solib_add (char *, int, struct target_ops *);
  35
  36 extern CORE_ADDR som_solib_get_got_by_pc (CORE_ADDR);
  37
  38 extern int
  39 som_solib_section_offsets (struct objfile *, struct section_offsets *);
  40
  41 /* Function to be called when the inferior starts up, to discover the names
  42    of shared libraries that are dynamically linked, the base addresses to
  43    which they are linked, and sufficient information to read in their symbols
  44    at a later time. */
  45
  46 #define SOLIB_CREATE_INFERIOR_HOOK(PID) som_solib_create_inferior_hook()
  47
  48 extern void som_solib_create_inferior_hook (void);
  49
  50 /* Function to be called to remove the connection between debugger and
  51    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  52    (This operation does not remove shared library information from
  53    the debugger, as CLEAR_SOLIB does.)
  54  */
  55 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook(PID)
  56
  57 extern void som_solib_remove_inferior_hook (int);
  58
  59 /* This function is called by the "catch load" command.  It allows
  60    the debugger to be notified by the dynamic linker when a specified
  61    library file (or any library file, if filename is NULL) is loaded.
  62  */
  63 #define SOLIB_CREATE_CATCH_LOAD_HOOK(pid,tempflag, filename,cond_string) \
  64    som_solib_create_catch_load_hook (pid, tempflag, filename, cond_string)
  65
  66 extern void som_solib_create_catch_load_hook (int, int, char *, char *);
  67
  68 /* This function is called by the "catch unload" command.  It allows
  69    the debugger to be notified by the dynamic linker when a specified
  70    library file (or any library file, if filename is NULL) is unloaded.
  71  */
  72 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename, cond_string) \
  73    som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
  74
  75 extern void som_solib_create_catch_unload_hook (int, int, char *, char *);
  76
  77 /* This function returns TRUE if the dynamic linker has just reported
  78    a load of a library.
  79
  80    This function must be used only when the inferior has stopped in
  81    the dynamic linker hook, or undefined results are guaranteed.
  82  */
  83 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  84    som_solib_have_load_event (pid)
  85
  86 extern int som_solib_have_load_event (int);
  87
  88 /* This function returns a pointer to the string representation of the
  89    pathname of the dynamically-linked library that has just been loaded.
  90
  91    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
  92    or undefined results are guaranteed.
  93
  94    This string's contents are only valid immediately after the inferior
  95    has stopped in the dynamic linker hook, and becomes invalid as soon
  96    as the inferior is continued.  Clients should make a copy of this
  97    string if they wish to continue the inferior and then access the string.
  98  */
  99 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 100    som_solib_loaded_library_pathname (pid)
 101
 102 extern char *som_solib_loaded_library_pathname (int);
 103
 104 /* This function returns TRUE if the dynamic linker has just reported
 105    an unload of a library.
 106
 107    This function must be used only when the inferior has stopped in
 108    the dynamic linker hook, or undefined results are guaranteed.
 109  */
 110 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 111    som_solib_have_unload_event (pid)
 112
 113 extern int som_solib_have_unload_event (int);
 114
 115 /* This function returns a pointer to the string representation of the
 116    pathname of the dynamically-linked library that has just been unloaded.
 117
 118    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 119    or undefined results are guaranteed.
 120
 121    This string's contents are only valid immediately after the inferior
 122    has stopped in the dynamic linker hook, and becomes invalid as soon
 123    as the inferior is continued.  Clients should make a copy of this
 124    string if they wish to continue the inferior and then access the string.
 125  */
 126 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 127    som_solib_unloaded_library_pathname (pid)
 128
 129 extern char *som_solib_unloaded_library_pathname (int);
 130
 131 /* This function returns TRUE if pc is the address of an instruction that
 132    lies within the dynamic linker (such as the event hook, or the dld
 133    itself).
 134
 135    This function must be used only when a dynamic linker event has been
 136    caught, and the inferior is being stepped out of the hook, or undefined
 137    results are guaranteed.
 138  */
 139 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 140    som_solib_in_dynamic_linker (pid, pc)
 141
 142 extern int som_solib_in_dynamic_linker (int, CORE_ADDR);
 143
 144 /* This function must be called when the inferior is killed, and the program
 145    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 146    any symbol tables.
 147
 148    Presently, this functionality is not implemented.
 149  */
 150 #define SOLIB_RESTART() \
 151    som_solib_restart ()
 152
 153 extern void som_solib_restart (void);
 154
 155 /* If we can't set a breakpoint, and it's in a shared library, just
 156    disable it.  */
 157
 158 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 159
 160 extern char *som_solib_address (CORE_ADDR);     /* somsolib.c */
 161
 162 /* If ADDR lies in a shared library, return its name.  */
 163
 164 #define PC_SOLIB(addr)  som_solib_address (addr)