Exemple #1
0
CORE_ADDR
kgdb_lookup(const char *sym)
{
	CORE_ADDR addr;
	char *name;

	asprintf(&name, "&%s", sym);
	addr = kgdb_parse(name);
	free(name);
	return (addr);
}
Exemple #2
0
CORE_ADDR
kgdb_trgt_core_pcb(u_int cpuid)
{
	CORE_ADDR addr;
	char *expr;

	asprintf(&expr, "&cpuid_to_pcpu[%d]->pc_md.pcb", cpuid);
	addr = kgdb_parse(expr);
	free(expr);
	return (addr);
}
Exemple #3
0
void
kgdb_dmesg(void)
{
	CORE_ADDR bufp;
	int size, rseq, wseq;
	char c;

	/*
	 * Display the unread portion of the message buffer. This gives the
	 * user a some initial data to work from.
	 */
	if (quiet)
		return;
	bufp = kgdb_parse("msgbufp->msg_ptr");
	size = (int)kgdb_parse("msgbufp->msg_size");
	if (bufp == 0 || size == 0)
		return;
	rseq = (int)kgdb_parse("msgbufp->msg_rseq");
	wseq = (int)kgdb_parse("msgbufp->msg_wseq");
	rseq = MSGBUF_SEQ_TO_POS(size, rseq);
	wseq = MSGBUF_SEQ_TO_POS(size, wseq);
	if (rseq == wseq)
		return;

	printf("\nUnread portion of the kernel message buffer:\n");
	while (rseq < wseq) {
		read_memory(bufp + rseq, &c, 1);
		putchar(c);
		rseq++;
		if (rseq == size)
			rseq = 0;
	}
	if (c != '\n')
		putchar('\n');
	putchar('\n');
}
Exemple #4
0
void
kgdb_trgt_new_objfile(struct objfile *objfile)
{

	/*
	 * In revision 1.117 of i386/i386/exception.S trap handlers
	 * were changed to pass trapframes by reference rather than
	 * by value.  Detect this by seeing if the first instruction
	 * at the 'calltrap' label is a "push %esp" which has the
	 * opcode 0x54.
	 */
	if (kgdb_parse("((char *)calltrap)[0]") == 0x54)
		ofs_fix = 4;
	else
		ofs_fix = 0;
}