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 #ifdef __STDC__                 /* Forward decl's for prototypes */
  25 struct target_ops;
  26 struct objfile;
  27 struct section_offsets;
  28 #endif
  29
  30 /* Called to add symbols from a shared library to gdb's symbol table. */
  31
  32 #define SOLIB_ADD(filename, from_tty, targ) \
  33     som_solib_add (filename, from_tty, targ)
  34
  35 extern void
  36 som_solib_add PARAMS ((char *, int, struct target_ops *));
  37
  38 extern CORE_ADDR
  39   som_solib_get_got_by_pc PARAMS ((CORE_ADDR));
  40
  41 extern int
  42 som_solib_section_offsets PARAMS ((struct objfile *, struct section_offsets *));
  43
  44 /* Function to be called when the inferior starts up, to discover the names
  45    of shared libraries that are dynamically linked, the base addresses to
  46    which they are linked, and sufficient information to read in their symbols
  47    at a later time. */
  48
  49 #define SOLIB_CREATE_INFERIOR_HOOK(PID) som_solib_create_inferior_hook()
  50
  51 extern void
  52 som_solib_create_inferior_hook PARAMS ((void));
  53
  54 /* Function to be called to remove the connection between debugger and
  55    dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
  56    (This operation does not remove shared library information from
  57    the debugger, as CLEAR_SOLIB does.)
  58  */
  59 #define SOLIB_REMOVE_INFERIOR_HOOK(PID) som_solib_remove_inferior_hook(PID)
  60
  61 extern void
  62 som_solib_remove_inferior_hook PARAMS ((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
  72 som_solib_create_catch_load_hook PARAMS ((int, int, char *, char *));
  73
  74 /* This function is called by the "catch unload" command.  It allows
  75    the debugger to be notified by the dynamic linker when a specified
  76    library file (or any library file, if filename is NULL) is unloaded.
  77  */
  78 #define SOLIB_CREATE_CATCH_UNLOAD_HOOK(pid,tempflag,filename, cond_string) \
  79    som_solib_create_catch_unload_hook (pid, tempflag, filename, cond_string)
  80
  81 extern void
  82 som_solib_create_catch_unload_hook PARAMS ((int, int, char *, char *));
  83
  84 /* This function returns TRUE if the dynamic linker has just reported
  85    a load of a library.
  86
  87    This function must be used only when the inferior has stopped in
  88    the dynamic linker hook, or undefined results are guaranteed.
  89  */
  90 #define SOLIB_HAVE_LOAD_EVENT(pid) \
  91    som_solib_have_load_event (pid)
  92
  93 extern int
  94 som_solib_have_load_event PARAMS ((int));
  95
  96 /* This function returns a pointer to the string representation of the
  97    pathname of the dynamically-linked library that has just been loaded.
  98
  99    This function must be used only when SOLIB_HAVE_LOAD_EVENT is TRUE,
 100    or undefined results are guaranteed.
 101
 102    This string's contents are only valid immediately after the inferior
 103    has stopped in the dynamic linker hook, and becomes invalid as soon
 104    as the inferior is continued.  Clients should make a copy of this
 105    string if they wish to continue the inferior and then access the string.
 106  */
 107 #define SOLIB_LOADED_LIBRARY_PATHNAME(pid) \
 108    som_solib_loaded_library_pathname (pid)
 109
 110 extern char *
 111   som_solib_loaded_library_pathname PARAMS ((int));
 112
 113 /* This function returns TRUE if the dynamic linker has just reported
 114    an unload of a library.
 115
 116    This function must be used only when the inferior has stopped in
 117    the dynamic linker hook, or undefined results are guaranteed.
 118  */
 119 #define SOLIB_HAVE_UNLOAD_EVENT(pid) \
 120    som_solib_have_unload_event (pid)
 121
 122 extern int
 123 som_solib_have_unload_event PARAMS ((int));
 124
 125 /* This function returns a pointer to the string representation of the
 126    pathname of the dynamically-linked library that has just been unloaded.
 127
 128    This function must be used only when SOLIB_HAVE_UNLOAD_EVENT is TRUE,
 129    or undefined results are guaranteed.
 130
 131    This string's contents are only valid immediately after the inferior
 132    has stopped in the dynamic linker hook, and becomes invalid as soon
 133    as the inferior is continued.  Clients should make a copy of this
 134    string if they wish to continue the inferior and then access the string.
 135  */
 136 #define SOLIB_UNLOADED_LIBRARY_PATHNAME(pid) \
 137    som_solib_unloaded_library_pathname (pid)
 138
 139 extern char *
 140   som_solib_unloaded_library_pathname PARAMS ((int));
 141
 142 /* This function returns TRUE if pc is the address of an instruction that
 143    lies within the dynamic linker (such as the event hook, or the dld
 144    itself).
 145
 146    This function must be used only when a dynamic linker event has been
 147    caught, and the inferior is being stepped out of the hook, or undefined
 148    results are guaranteed.
 149  */
 150 #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
 151    som_solib_in_dynamic_linker (pid, pc)
 152
 153 extern int
 154 som_solib_in_dynamic_linker PARAMS ((int, CORE_ADDR));
 155
 156 /* This function must be called when the inferior is killed, and the program
 157    restarted.  This is not the same as CLEAR_SOLIB, in that it doesn't discard
 158    any symbol tables.
 159
 160    Presently, this functionality is not implemented.
 161  */
 162 #define SOLIB_RESTART() \
 163    som_solib_restart ()
 164
 165 extern void
 166 som_solib_restart PARAMS ((void));
 167
 168 /* If we can't set a breakpoint, and it's in a shared library, just
 169    disable it.  */
 170
 171 #define DISABLE_UNSETTABLE_BREAK(addr)  (som_solib_address(addr) != NULL)
 172
 173 extern char *
 174   som_solib_address PARAMS ((CORE_ADDR));       /* somsolib.c */
 175
 176 /* If ADDR lies in a shared library, return its name.  */
 177
 178 #define PC_SOLIB(addr)  som_solib_address (addr)