Differential D25487 Diff 74119 head/sys/kern/subr_stack.c

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head/sys/kern/subr_stack.c

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	#endif			#endif

	/*			/*
	* Format stack into sbuf from live kernel.			* Format stack into sbuf from live kernel.
	*			*
	* flags - M_WAITOK or M_NOWAIT (EWOULDBLOCK).			* flags - M_WAITOK or M_NOWAIT (EWOULDBLOCK).
	*/			*/
	int			int
	stack_sbuf_print_flags(struct sbuf sb, const struct stack st, int flags)			stack_sbuf_print_flags(struct sbuf sb, const struct stack st, int flags,
				enum stack_sbuf_fmt format)
	{			{
	char namebuf[64];			char namebuf[64];
	long offset;			long offset;
	int i, error;			int i, error;

	KASSERT(st->depth <= STACK_MAX, ("bogus stack"));			KASSERT(st->depth <= STACK_MAX, ("bogus stack"));
	for (i = 0; i < st->depth; i++) {			for (i = 0; i < st->depth; i++) {
	error = stack_symbol(st->pcs[i], namebuf, sizeof(namebuf),			error = stack_symbol(st->pcs[i], namebuf, sizeof(namebuf),
	&offset, flags);			&offset, flags);
	if (error == EWOULDBLOCK)			if (error == EWOULDBLOCK)
	return (error);			return (error);
	sbuf_printf(sb, "#%d %p at %s+%#lx\n", i, (void *)st->pcs[i],			switch (format) {
	namebuf, offset);			case STACK_SBUF_FMT_LONG:
				sbuf_printf(sb, "#%d %p at %s+%#lx\n", i,
				(void *)st->pcs[i], namebuf, offset);
				break;
				case STACK_SBUF_FMT_COMPACT:
				sbuf_printf(sb, "%s+%#lx ", namebuf, offset);
				break;
				default:
				__assert_unreachable();
	}			}
				}
				sbuf_nl_terminate(sb);
	return (0);			return (0);
	}			}

	void			void
	stack_sbuf_print(struct sbuf sb, const struct stack st)			stack_sbuf_print(struct sbuf sb, const struct stack st)
	{			{

	(void)stack_sbuf_print_flags(sb, st, M_WAITOK);			(void)stack_sbuf_print_flags(sb, st, M_WAITOK, STACK_SBUF_FMT_LONG);
	}			}

	#if defined(DDB) \|\| defined(WITNESS)			#if defined(DDB) \|\| defined(WITNESS)
	void			void
	stack_sbuf_print_ddb(struct sbuf sb, const struct stack st)			stack_sbuf_print_ddb(struct sbuf sb, const struct stack st)
	{			{
	const char *name;			const char *name;
	long offset;			long offset;
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