Ejemplo n.º 1
0
static void
kgdb_trgt_open(char *filename, int from_tty)
{
	struct cleanup *old_chain;
	struct thread_info *ti;
	struct kthr *kt;
	kvm_t *nkvm;
	char *temp;
	int ontop;

	target_preopen (from_tty);
	if (!filename)
		error ("No vmcore file specified.");
	if (!exec_bfd)
		error ("Can't open a vmcore without a kernel");

	filename = tilde_expand (filename);
	if (filename[0] != '/') {
		temp = concat (current_directory, "/", filename, NULL);
		xfree(filename);
		filename = temp;
	}

	old_chain = make_cleanup (xfree, filename);

	nkvm = kvm_openfiles(bfd_get_filename(exec_bfd), filename, NULL,
	    write_files ? O_RDWR : O_RDONLY, kvm_err);
	if (nkvm == NULL)
		error ("Failed to open vmcore: %s", kvm_err);

	/* Don't free the filename now and close any previous vmcore. */
	discard_cleanups(old_chain);
	unpush_target(&kgdb_trgt_ops);

	kvm = nkvm;
	vmcore = filename;
	old_chain = make_cleanup(kgdb_core_cleanup, NULL);

	ontop = !push_target (&kgdb_trgt_ops);
	discard_cleanups (old_chain);

	kgdb_dmesg();

	init_thread_list();
	kt = kgdb_thr_init();
	while (kt != NULL) {
		ti = add_thread(pid_to_ptid(kt->tid));
		kt = kgdb_thr_next(kt);
	}
	if (curkthr != 0)
		inferior_ptid = pid_to_ptid(curkthr->tid);

	if (ontop) {
		/* XXX: fetch registers? */
		kld_init();
		flush_cached_frames();
		select_frame (get_current_frame());
		print_stack_frame(get_selected_frame(),
		    frame_relative_level(get_selected_frame()), 1);
	} else
		warning(
	"you won't be able to access this vmcore until you terminate\n\
your %s; do ``info files''", target_longname);
}
Ejemplo n.º 2
0
static void
kgdb_trgt_open(char *filename, int from_tty)
{
	struct cleanup *old_chain;
	struct kthr *kt;
	struct inferior *inf8;
	struct program_space *pspace;
	kvm_t *nkvm;
	char *temp;
	int first_inferior = 1;

	target_preopen (from_tty);
	if (!filename)
		error ("No vmcore file specified.");
	if (!exec_bfd)
		error ("Can't open a vmcore without a kernel");

	filename = tilde_expand (filename);
	if (filename[0] != '/') {
		temp = concat (current_directory, "/", filename, NULL);
		xfree(filename);
		filename = temp;
	}

	old_chain = make_cleanup (xfree, filename);

	nkvm = kvm_openfiles(bfd_get_filename(exec_bfd), filename, NULL,
	    write_files ? O_RDWR : O_RDONLY, kvm_err);
	if (nkvm == NULL)
		error ("Failed to open vmcore: %s", kvm_err);

	/* Don't free the filename now and close any previous vmcore. */
	discard_cleanups(old_chain);
	unpush_target(&kgdb_trgt_ops);

	kvm = nkvm;
	vmcore = filename;
	old_chain = make_cleanup(kgdb_core_cleanup, NULL);

	push_target (&kgdb_trgt_ops);
	discard_cleanups (old_chain);

	kgdb_dmesg();

	init_thread_list();
	kt = kgdb_thr_init();
	while (kt != NULL) {
		if (!in_inferior_list(kt->pid)) {
                     if (first_inferior) {
                       first_inferior = 0;
                       inf8 = current_inferior();
                       inf8->pid = kt->pid;
                       inferior_appeared (inf8, kt->pid);
                       pspace = current_program_space;
                       pspace->ebfd = 0;
                       pspace->ebfd_mtime = 0;
                     } else {                    
                       inf8 = add_inferior(kt->pid);
                       pspace = add_program_space(new_address_space());
                       pspace->symfile_object_file = symfile_objfile;
                       pspace->objfiles = object_files;
                     }
                     inf8->pspace = pspace;
                     inf8->aspace = pspace->aspace;
                }
		add_thread(ptid_build(kt->pid, 0, kt->tid));
		kt = kgdb_thr_next(kt);
	}
	if (curkthr != 0)
		inferior_ptid = ptid_build(curkthr->pid, 0, curkthr->tid);

	frame_unwind_prepend_unwinder(get_frame_arch(get_current_frame()), &kgdb_trgt_trapframe_unwind);

	/* XXX: fetch registers? */
	kld_init();
	reinit_frame_cache();
	select_frame (get_current_frame());
	print_stack_frame(get_selected_frame(NULL),
	  frame_relative_level(get_selected_frame(NULL)), 1);
}