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New remove-symbol-file command.

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New command for removing symbol files added via
the add-symbol-file command.

2013-10-29  Nicolas Blanc  <nicolas.blanc@intel.com>

	* breakpoint.c (disable_breakpoints_in_freed_objfile): New function.
	* objfiles.c (free_objfile): Notify free_objfile.
	(is_addr_in_objfile): New function.
	* objfiles.h (is_addr_in_objfile): New declaration.
	* printcmd.c (clear_dangling_display_expressions): Act upon free_objfile
	events instead of solib_unloaded events.
	(_initialize_printcmd): Register observer for free_objfile instead
	of solib_unloaded notifications.
	* solib.c (remove_user_added_objfile): New function.
	* symfile.c (remove_symbol_file_command): New command.
	(_initialize_symfile): Add remove-symbol-file.
gdb/doc
	* observer.texi: New free_objfile event.

Signed-off-by: Nicolas Blanc <nicolas.blanc@intel.com>
This commit is contained in:
Nicolas Blanc
2013-03-12 11:10:18 +01:00
parent 487ad57ccf
commit 63644780ba
7 changed files with 209 additions and 9 deletions
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85
gdb/symfile.c
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@@ -2342,6 +2342,82 @@ add_symbol_file_command (char *args, int from_tty)
}
/* This function removes a symbol file that was added via add-symbol-file. */
static void
remove_symbol_file_command (char *args, int from_tty)
{
char **argv;
struct objfile *objf = NULL;
struct cleanup *my_cleanups;
struct program_space *pspace = current_program_space;
struct gdbarch *gdbarch = get_current_arch ();
dont_repeat ();
if (args == NULL)
error (_("remove-symbol-file: no symbol file provided"));
my_cleanups = make_cleanup (null_cleanup, NULL);
argv = gdb_buildargv (args);
if (strcmp (argv[0], "-a") == 0)
{
/* Interpret the next argument as an address. */
CORE_ADDR addr;
if (argv[1] == NULL)
error (_("Missing address argument"));
if (argv[2] != NULL)
error (_("Junk after %s"), argv[1]);
addr = parse_and_eval_address (argv[1]);
ALL_OBJFILES (objf)
{
if (objf != 0
&& objf->flags & OBJF_USERLOADED
&& objf->pspace == pspace && is_addr_in_objfile (addr, objf))
break;
}
}
else if (argv[0] != NULL)
{
/* Interpret the current argument as a file name. */
char *filename;
if (argv[1] != NULL)
error (_("Junk after %s"), argv[0]);
filename = tilde_expand (argv[0]);
make_cleanup (xfree, filename);
ALL_OBJFILES (objf)
{
if (objf != 0
&& objf->flags & OBJF_USERLOADED
&& objf->pspace == pspace
&& filename_cmp (filename, objfile_name (objf)) == 0)
break;
}
}
if (objf == NULL)
error (_("No symbol file found"));
if (from_tty
&& !query (_("Remove symbol table from file \"%s\"? "),
objfile_name (objf)))
error (_("Not confirmed."));
free_objfile (objf);
clear_symtab_users (0);
do_cleanups (my_cleanups);
}
typedef struct objfile *objfilep;
DEF_VEC_P (objfilep);
@@ -3764,6 +3840,15 @@ with the text. SECT is a section name to be loaded at SECT_ADDR."),
&cmdlist);
set_cmd_completer (c, filename_completer);
c = add_cmd ("remove-symbol-file", class_files,
remove_symbol_file_command, _("\
Remove a symbol file added via the add-symbol-file command.\n\
Usage: remove-symbol-file FILENAME\n\
remove-symbol-file -a ADDRESS\n\
The file to remove can be identified by its filename or by an address\n\
that lies within the boundaries of this symbol file in memory."),
&cmdlist);
c = add_cmd ("load", class_files, load_command, _("\
Dynamically load FILE into the running program, and record its symbols\n\
for access from GDB.\n\