RE: [PATCH 1/3] gdbstub: prevent uninitialized warning

["Chenqun (kuhn)" <kuhn.chenqun@huawei.com>]

>-----Original Message-----
>From: Alex Bennée [mailto:alex.bennee@linaro.org]
>Sent: Friday, March 27, 2020 5:13 PM
>To: Chenqun (kuhn) <kuhn.chenqun@huawei.com>
>Cc: qemu-devel@nongnu.org; qemu-trivial@nongnu.org; Zhanghailiang
><zhang.zhanghailiang@huawei.com>; laurent@vivier.eu; Euler Robot
><euler.robot@huawei.com>; Philippe Mathieu-Daudé <philmd@redhat.com>
>Subject: Re: [PATCH 1/3] gdbstub: prevent uninitialized warning
>
>
>Chen Qun <kuhn.chenqun@huawei.com> writes:
>
>> According to the glib function requirements, we need initialise
>>      the variable. Otherwise there will be compilation warnings:
>>
>> qemu/gdbstub.c: In function ‘handle_query_thread_extra’:
>> /usr/include/glib-2.0/glib/glib-autocleanups.h:28:3: warning:
>>  ‘cpu_name’ may be used uninitialized in this function [-Wmaybe-uninitialized]
>>    g_free (*pp);
>>    ^~~~~~~~~~~~
>>
>> Reported-by: Euler Robot <euler.robot@huawei.com>
>> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
>
>Thanks,
>
>I've pulled in a duplicate fix from:
>
>  Message-Id: <20200326151407.25046-1-dplotnikov@virtuozzo.com>
>
>and added your Reported-by's

OK,  If possible, bring Miroslav Rezanina's  "Reviewed-by" tag.

https://lists.gnu.org/archive/html/qemu-devel/2020-03/msg07651.html

Thanks.
>
>> ---
>> Cc: "Alex Bennée" <alex.bennee@linaro.org>
>> Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>
>> ---
>>  gdbstub.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/gdbstub.c b/gdbstub.c
>> index 013fb1ac0f..171e150950 100644
>> --- a/gdbstub.c
>> +++ b/gdbstub.c
>> @@ -2060,8 +2060,8 @@ static void
>handle_query_thread_extra(GdbCmdContext *gdb_ctx, void *user_ctx)
>>          /* Print the CPU model and name in multiprocess mode */
>>          ObjectClass *oc = object_get_class(OBJECT(cpu));
>>          const char *cpu_model = object_class_get_name(oc);
>> -        g_autofree char *cpu_name;
>> -        cpu_name  = object_get_canonical_path_component(OBJECT(cpu));
>> +        g_autofree char *cpu_name =
>> +            object_get_canonical_path_component(OBJECT(cpu));
>>          g_string_printf(rs, "%s %s [%s]", cpu_model, cpu_name,
>>                          cpu->halted ? "halted " : "running");
>>      } else {
>
>
>--
>Alex Bennée