binutils-gdb/gdb/solib.h
Pedro Alves b15cc25cbe Make symfile_add_flags and objfile->flags strongly typed
This makes these flag types be "enum flag" types.  The benefit is
making use of C++'s stronger typing -- mixing the flags types by
mistake errors at compile time.

This caught one old bug in symbol_file_add_main_1 already, fixed by
this patch as well:

  @@ -1318,7 +1326,7 @@ symbol_file_add_main_1 (const char *args, int from_tty, int flags)
	what is frameless.  */
     reinit_frame_cache ();

  -  if ((flags & SYMFILE_NO_READ) == 0)
  +  if ((add_flags & SYMFILE_NO_READ) == 0)
       set_initial_language ();
   }

Above, "flags" are objfile flags, not symfile_add_flags.  So that was
actually checking for "flag & OBJF_PSYMTABS_READ", which has the same
value as SYMFILE_NO_READ...

I moved the flags definitions to separate files to break circular
dependencies.

Built with --enable-targets=all and tested on x86-64 Fedora 23.

gdb/ChangeLog:
2016-10-26  Pedro Alves  <palves@redhat.com>

	* coffread.c (coff_symfile_read): Use symfile_add_flags.
	* dbxread.c (dbx_symfile_read): Ditto.
	* elfread.c (elf_symfile_read): Ditto.
	* inferior.h: Include symfile-add-flags.h.
	(struct inferior) <symfile_flags>: Now symfile_add_flags.
	* machoread.c (macho_add_oso_symfile, macho_symfile_read_all_oso)
	(macho_symfile_read, mipscoff_symfile_read): Use
	symfile_add_flags.
	* objfile-flags.h: New file.
	* objfiles.c (allocate_objfile): Use objfile_flags.
	* objfiles.h: Include objfile-flags.h.
	(struct objfile) <flags>: Now an objfile_flags.
	(OBJF_REORDERED, OBJF_SHARED, OBJF_READNOW, OBJF_USERLOADED)
	(OBJF_PSYMTABS_READ, OBJF_MAINLINE, OBJF_NOT_FILENAME): Delete.
	Converted to an enum-flags in objfile-flags.h.
	(allocate_objfile): Use objfile_flags.
	* python/py-objfile.c (objfpy_add_separate_debug_file): Remove
	unnecessary local.
	* solib.c (solib_read_symbols, solib_add)
	(reload_shared_libraries_1): Use symfile_add_flags.
	* solib.h: Include "symfile-add-flags.h".
	(solib_read_symbols): Use symfile_add_flags.
	* symfile-add-flags.h: New file.
	* symfile-debug.c (debug_sym_read): Use symfile_add_flags.
	* symfile-mem.c (symbol_file_add_from_memory): Use
	symfile_add_flags.
	* symfile.c (read_symbols, syms_from_objfile_1)
	(syms_from_objfile, finish_new_objfile): Use symfile_add_flags.
	(symbol_file_add_with_addrs): Use symfile_add_flags and
	objfile_flags.
	(symbol_file_add_separate): Use symfile_add_flags.
	(symbol_file_add_from_bfd, symbol_file_add): Use symfile_add_flags
	and objfile_flags.
	(symbol_file_add_main_1): : Use objfile_flags.  Fix add_flags vs
	flags confusion.
	(symbol_file_command): Use objfile_flags.
	(add_symbol_file_command): Use symfile_add_flags and
	objfile_flags.
	(clear_symtab_users): Use symfile_add_flags.
	* symfile.h: Include "symfile-add-flags.h" and "objfile-flags.h".
	(struct sym_fns) <sym_read>: Use symfile_add_flags.
	(clear_symtab_users): Use symfile_add_flags.
	(enum symfile_add_flags): Delete, moved to symfile-add-flags.h and
	converted to enum-flags.
	(symbol_file_add, symbol_file_add_from_bfd)
	(symbol_file_add_separate): Use symfile_add_flags.
	* xcoffread.c (xcoff_initial_scan): Use symfile_add_flags.
2016-10-26 16:47:10 +01:00

106 lines
3.4 KiB
C

/* Shared library declarations for GDB, the GNU Debugger.
Copyright (C) 1992-2016 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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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, 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;
#include "symfile-add-flags.h"
/* Called when we free all symtabs, to free the shared library information
as well. */
extern void clear_solib (void);
/* Called to add symbols from a shared library to gdb's symbol table. */
extern void solib_add (const char *, int, struct target_ops *, int);
extern int 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. */
extern void solib_create_inferior_hook (int from_tty);
/* If ADDR lies in a shared library, return its name. */
extern char *solib_name_from_address (struct program_space *, CORE_ADDR);
/* Return 1 if ADDR lies within SOLIB. */
extern int solib_contains_address_p (const struct so_list *, CORE_ADDR);
/* 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). */
extern int solib_keep_data_in_core (CORE_ADDR vaddr, unsigned long size);
/* Return 1 if PC lies in the dynamic symbol resolution code of the
run time loader. */
extern int in_solib_dynsym_resolve_code (CORE_ADDR);
/* Discard symbols that were auto-loaded from shared libraries. */
extern void no_shared_libraries (char *ignored, int from_tty);
/* Set the solib operations for GDBARCH to NEW_OPS. */
extern void set_solib_ops (struct gdbarch *gdbarch,
const struct target_so_ops *new_ops);
/* Return non-zero if NAME is the libpthread shared library. */
extern int 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);
/* Enable or disable optional solib event breakpoints as appropriate. */
extern void update_solib_breakpoints (void);
/* Handle an solib event by calling solib_add. */
extern void handle_solib_event (void);
#endif /* SOLIB_H */