when use DEBUG_DEBUGCON, screen spits: debugcon: write addr=0x0000 val=0x00 Rdebugcon: write addr=0x0000 val=0x00 udebugcon: write addr=0x0000 val=0x00 ndebugcon: write addr=0x0000 val=0x00 ndebugcon: write addr=0x0000 val=0x00 idebugcon: write addr=0x0000 val=0x00 ndebugcon: write addr=0x0000 val=0x00 gdebugcon: write addr=0x0000 val=0x00 debugcon: write addr=0x0000 val=0x00 odebugcon: write addr=0x0000 val=0x00 pdebugcon: write addr=0x0000 val=0x00 tdebugcon: write addr=0x0000 val=0x00 idebugcon: write addr=0x0000 val=0x00 odebugcon: write addr=0x0000 val=0x00 ndebugcon: write addr=0x0000 val=0x00 debugcon: write addr=0x0000 val=0x00 rdebugcon: write addr=0x0000 val=0x00 odebugcon: write addr=0x0000 val=0x00 mdebugcon: write addr=0x0000 val=0x00 debugcon: write addr=0x0000 val=0x00 adebugcon: write addr=0x0000 val=0x00 tdebugcon: write addr=0x0000 val=0x00 debugcon: write addr=0x0000 val=0x00
Oh, that's wrong, val is not always be 0. this bug caused by lack of length modifier for specifier 'x'. Signed-off-by: liguang <lig.f...@cn.fujitsu.com> --- v4: fix misleading subject --- hw/char/debugcon.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/hw/char/debugcon.c b/hw/char/debugcon.c index 02c9577..7e41c90 100644 --- a/hw/char/debugcon.c +++ b/hw/char/debugcon.c @@ -55,7 +55,7 @@ static void debugcon_ioport_write(void *opaque, hwaddr addr, uint64_t val, unsigned char ch = val; #ifdef DEBUG_DEBUGCON - printf("debugcon: write addr=0x%04x val=0x%02x\n", addr, val); + printf("debugcon: write addr=0x%04" HWADDR_PRIx " val=0x%02x\n", addr, val); #endif qemu_chr_fe_write(s->chr, &ch, 1); -- 1.7.2.5