/* Shared library declarations for GDB, the GNU Debugger.
- Copyright 1992, 1993, 1995, 1998, 1999, 2000, 2001, 2003, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1992-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SOLIB_H
#define SOLIB_H
/* Forward decl's for prototypes */
struct so_list;
struct target_ops;
+struct target_so_ops;
+struct program_space;
-/* Called when we free all symtabs, to free the shared library information
- as well. */
+#include "symfile-add-flags.h"
-#define CLEAR_SOLIB clear_solib
+/* List of known shared objects */
+#define so_list_head current_program_space->so_list
-extern void clear_solib (void);
+/* Called when we free all symtabs, to free the shared library information
+ as well. */
-/* Called to add symbols from a shared library to gdb's symbol table. */
+extern void clear_solib (void);
-#define SOLIB_ADD(filename, from_tty, targ, readsyms) \
- solib_add (filename, from_tty, targ, readsyms)
+/* Called to add symbols from a shared library to gdb's symbol table. */
-extern void solib_add (char *, int, struct target_ops *, int);
-extern int solib_read_symbols (struct so_list *, int);
+extern void solib_add (const char *, int, int);
+extern bool solib_read_symbols (struct so_list *, symfile_add_flags);
/* Function to be called when the inferior starts up, to discover the
names of shared libraries that are dynamically linked, the base
addresses to which they are linked, and sufficient information to
read in their symbols at a later time. */
-#define SOLIB_CREATE_INFERIOR_HOOK(PID) solib_create_inferior_hook ()
+extern void solib_create_inferior_hook (int from_tty);
-/* Function to be called to remove the connection between debugger and
- dynamic linker that was established by SOLIB_CREATE_INFERIOR_HOOK.
- (This operation does not remove shared library information from
- the debugger, as CLEAR_SOLIB does.)
+/* If ADDR lies in a shared library, return its name. */
- This functionality is presently not implemented for this target.
- */
-#define SOLIB_REMOVE_INFERIOR_HOOK(PID) (0)
+extern char *solib_name_from_address (struct program_space *, CORE_ADDR);
-extern void solib_create_inferior_hook (void); /* solib.c */
+/* Return true if ADDR lies within SOLIB. */
-/* This function returns TRUE if pc is the address of an instruction that
- lies within the dynamic linker (such as the event hook, or the dld
- itself).
+extern bool solib_contains_address_p (const struct so_list *, CORE_ADDR);
- This function must be used only when a dynamic linker event has been
- caught, and the inferior is being stepped out of the hook, or undefined
- results are guaranteed.
+/* Return whether the data starting at VADDR, size SIZE, must be kept
+ in a core file for shared libraries loaded before "gcore" is used
+ to be handled correctly when the core file is loaded. This only
+ applies when the section would otherwise not be kept in the core
+ file (in particular, for readonly sections). */
- Presently, this functionality is not implemented.
- */
+extern bool solib_keep_data_in_core (CORE_ADDR vaddr, unsigned long size);
-/*
- #define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
- error("catch of library loads/unloads not yet implemented on this platform")
- */
+/* Return true if PC lies in the dynamic symbol resolution code of the
+ run time loader. */
-#define SOLIB_IN_DYNAMIC_LINKER(pid,pc) \
-(0)
+extern bool in_solib_dynsym_resolve_code (CORE_ADDR);
-/* This function must be called when the inferior is killed, and the program
- restarted. This is not the same as CLEAR_SOLIB, in that it doesn't discard
- any symbol tables.
+/* Discard symbols that were auto-loaded from shared libraries. */
- Presently, this functionality is not implemented.
- */
-#define SOLIB_RESTART() \
- (0)
+extern void no_shared_libraries (const char *ignored, int from_tty);
-/* If we can't set a breakpoint, and it's in a shared library, just
- disable it. */
+/* Set the solib operations for GDBARCH to NEW_OPS. */
-#define DISABLE_UNSETTABLE_BREAK(addr) (solib_address(addr) != NULL)
+extern void set_solib_ops (struct gdbarch *gdbarch,
+ const struct target_so_ops *new_ops);
-extern char *solib_address (CORE_ADDR); /* solib.c */
+/* Synchronize GDB's shared object list with inferior's.
-/* If ADDR lies in a shared library, return its name. */
+ Extract the list of currently loaded shared objects from the
+ inferior, and compare it with the list of shared objects currently
+ in GDB's so_list_head list. Edit so_list_head to bring it in sync
+ with the inferior's new list.
-#define PC_SOLIB(addr) solib_address (addr)
+ If we notice that the inferior has unloaded some shared objects,
+ free any symbolic info GDB had read about those shared objects.
-/* Return 1 if PC lies in the dynamic symbol resolution code of the
- run time loader. */
+ Don't load symbolic info for any new shared objects; just add them
+ to the list, and leave their symbols_loaded flag clear.
+
+ If FROM_TTY is non-null, feel free to print messages about what
+ we're doing. */
+
+extern void update_solib_list (int from_tty);
+
+/* Return true if NAME is the libpthread shared library. */
+
+extern bool libpthread_name_p (const char *name);
+
+/* Look up symbol from both symbol table and dynamic string table. */
+
+extern CORE_ADDR gdb_bfd_lookup_symbol (bfd *abfd,
+ int (*match_sym) (const asymbol *,
+ const void *),
+ const void *data);
+
+/* Look up symbol from symbol table. */
+
+extern CORE_ADDR gdb_bfd_lookup_symbol_from_symtab (bfd *abfd,
+ int (*match_sym)
+ (const asymbol *,
+ const void *),
+ const void *data);
-#define IN_SOLIB_DYNSYM_RESOLVE_CODE(pc) in_solib_dynsym_resolve_code (pc)
+/* Enable or disable optional solib event breakpoints as appropriate. */
-extern int in_solib_dynsym_resolve_code (CORE_ADDR); /* solib.c */
+extern void update_solib_breakpoints (void);
-/* Discard symbols that were auto-loaded from shared libraries. */
+/* Handle an solib event by calling solib_add. */
-extern void no_shared_libraries (char *ignored, int from_tty);
+extern void handle_solib_event (void);
#endif /* SOLIB_H */
projects / deliverable / binutils-gdb.git / blobdiff