Re: [PATCH v3 2/2] hw/m68k/mcf52xx: Replace hw_error() by qemu_log_mask()

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

On 5/26/20 6:04 PM, Thomas Huth wrote:
> Am Tue, 26 May 2020 11:40:52 +0200
> schrieb Philippe Mathieu-Daudé <f4bug@amsat.org>:
> 
>> hw_error() calls exit(). This a bit overkill when we can log
>> the accesses as unimplemented or guest error.
>>
>> When fuzzing the devices, we don't want the whole process to
>> exit. Replace some hw_error() calls by qemu_log_mask().
>>
>> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> [...]
>> diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c
>> index b84c152ce3..108623b4ad 100644
>> --- a/hw/m68k/mcf5208.c
>> +++ b/hw/m68k/mcf5208.c
>> @@ -9,10 +9,10 @@
>>  #include "qemu/osdep.h"
>>  #include "qemu/units.h"
>>  #include "qemu/error-report.h"
>> +#include "qemu/log.h"
>>  #include "qapi/error.h"
>>  #include "qemu-common.h"
>>  #include "cpu.h"
>> -#include "hw/hw.h"
>>  #include "hw/irq.h"
>>  #include "hw/m68k/mcf.h"
>>  #include "hw/m68k/mcf_fec.h"
>> @@ -111,8 +111,9 @@ static void m5208_timer_write(void *opaque,
>> hwaddr offset, case 4:
>>          break;
>>      default:
>> -        hw_error("m5208_timer_write: Bad offset 0x%x\n",
>> (int)offset);
>> -        break;
>> +        qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" PRIx64
>> "\n",
> 
> That likely should be HWADDR_PRIX, too? ... could be fixed up while
> applying the patch.

Oops yes. Thanks a lot!

> 
> With that:
> Reviewed-by: Thomas Huth <huth@tuxfamily.org>
> 
> 
>> +                      __func__, offset);
>> +        return;
>>      }
>>      m5208_timer_update(s);
>>  }
>> @@ -136,7 +137,8 @@ static uint64_t m5208_timer_read(void *opaque,
>> hwaddr addr, case 4:
>>          return ptimer_get_count(s->timer);
>>      default:
>> -        hw_error("m5208_timer_read: Bad offset 0x%x\n", (int)addr);
>> +        qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%"
>> HWADDR_PRIX "\n",
>> +                      __func__, addr);
>>          return 0;
>>      }
>>  }
>> @@ -164,7 +166,8 @@ static uint64_t m5208_sys_read(void *opaque,
>> hwaddr addr, return 0;
>>  
>>      default:
>> -        hw_error("m5208_sys_read: Bad offset 0x%x\n", (int)addr);
>> +        qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%"
>> HWADDR_PRIX "\n",
>> +                      __func__, addr);
>>          return 0;
>>      }
>>  }
>> @@ -172,7 +175,8 @@ static uint64_t m5208_sys_read(void *opaque,
>> hwaddr addr, static void m5208_sys_write(void *opaque, hwaddr addr,
>>                              uint64_t value, unsigned size)
>>  {
>> -    hw_error("m5208_sys_write: Bad offset 0x%x\n", (int)addr);
>> +    qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIX
>> "\n",
>> +                  __func__, addr);
>>  }
>