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Create target sections for user-added symbol files.

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Add the sections of the symbol files that are provided via
'add-symbol-file' to the set of current target sections.
User-added sections are removed upon notification of free_objfile
when their corresponding object file is deleted.

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

	* exec.h (add_target_sections_of_objfile): New declaration.
	* exec.c (add_target_sections_of_objfile): New function.
	* symfile.c (add_symbol_file_command): Update current target sections.
	(symfile_free_objfile): New function.
	(_initialize_symfile): Register observer for free_objfile events.

Signed-off-by: Nicolas Blanc <nicolas.blanc@intel.com>
This commit is contained in:
Nicolas Blanc
2013-07-17 11:33:45 +02:00
parent 98297bf675
commit 76ad5e1e2a
3 changed files with 69 additions and 2 deletions
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20
gdb/symfile.c
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@@ -57,6 +57,7 @@
#include "stack.h"
#include "gdb_bfd.h"
#include "cli/cli-utils.h"
#include "target.h"
#include <sys/types.h>
#include <fcntl.h>
@@ -2206,6 +2207,7 @@ add_symbol_file_command (char *args, int from_tty)
int expecting_sec_name = 0;
int expecting_sec_addr = 0;
char **argv;
struct objfile *objf;
struct sect_opt
{
@@ -2332,8 +2334,10 @@ add_symbol_file_command (char *args, int from_tty)
if (from_tty && (!query ("%s", "")))
error (_("Not confirmed."));
symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0,
section_addrs, flags);
objf = symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0,
section_addrs, flags);
add_target_sections_of_objfile (objf);
/* Getting new symbols may change our opinion about what is
frameless. */
@@ -3819,11 +3823,23 @@ symfile_find_segment_sections (struct objfile *objfile)
free_symfile_segment_data (data);
}
/* Listen for free_objfile events. */
static void
symfile_free_objfile (struct objfile *objfile)
{
/* Remove the target sections of user-added objfiles. */
if (objfile != 0 && objfile->flags & OBJF_USERLOADED)
remove_target_sections ((void *) objfile);
}
void
_initialize_symfile (void)
{
struct cmd_list_element *c;
observer_attach_free_objfile (symfile_free_objfile);
c = add_cmd ("symbol-file", class_files, symbol_file_command, _("\
Load symbol table from executable file FILE.\n\
The `file' command can also load symbol tables, as well as setting the file\n\