Commit 07e2863d authored Sep 17, 2014 by Max Filippov Committed by Peter Maydell Sep 19, 2014

exec.c: fix setting 1-byte-long watchpoints



With commit 05068c0d 'exec.c: Relax restrictions on watchpoint length
and alignment' it's no longer possible to set 1-byte-long watchpoint
because of incorrect address range check.
Fix that by changing condition that checks for address wraparound.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1411016616-29879-1-git-send-email-jcmvbkbc@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

parent 4852ee95

exec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -595,7 +595,7 @@ int cpu_watchpoint_insert(CPUState *cpu, vaddr addr, vaddr len,
		CPUWatchpoint *wp;

		/* forbid ranges which are empty or run off the end of the address space */
		if (len == 0 \|\| (addr + len - 1) <= addr) {
		if (len == 0 \|\| (addr + len - 1) < addr) {
		error_report("tried to set invalid watchpoint at %"
		VADDR_PRIx ", len=%" VADDR_PRIu, addr, len);
		return -EINVAL;