With commit 05068c0dfb5b '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 <jcmvb...@gmail.com> --- exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/exec.c b/exec.c index 2b24651..759055d 100644 --- a/exec.c +++ b/exec.c @@ -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; -- 1.8.1.4