| Message ID | 20200325092137.24020-2-kuhn.chenqun@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Three trivial patchs | expand |
On Wed, Mar 25, 2020 at 05:21:35PM +0800, Chen Qun wrote: > 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> > --- > 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 { > -- > 2.23.0 > > > Fixing broken build with -Wall. Reviewed-by: Miroslav Rezanina <mrezanin@redhat.com>
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 > --- > 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 {
>-----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
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 {
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> --- Cc: "Alex Bennée" <alex.bennee@linaro.org> Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com> --- gdbstub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)