diff mbox series

[v2,08/26] tests/qtests: clean-up and fix leak in generic_fuzz

Message ID 20230626215926.2522656-9-alex.bennee@linaro.org
State New
Headers show
Series maintainer omnibus: testing, fuzz, plugins, documentation | expand

Commit Message

Alex Bennée June 26, 2023, 9:59 p.m. UTC
An update to the clang tooling detects more issues with the code
including a memory leak from the g_string_new() allocation. Clean up
the code with g_autoptr and use ARRAY_SIZE while we are at it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/qtest/fuzz/generic_fuzz.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

Comments

Juan Quintela June 27, 2023, 7:43 a.m. UTC | #1
Alex Bennée <alex.bennee@linaro.org> wrote:
> An update to the clang tooling detects more issues with the code
> including a memory leak from the g_string_new() allocation. Clean up
> the code with g_autoptr and use ARRAY_SIZE while we are at it.
>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  tests/qtest/fuzz/generic_fuzz.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c
> index c525d22951..a4841181cc 100644
> --- a/tests/qtest/fuzz/generic_fuzz.c
> +++ b/tests/qtest/fuzz/generic_fuzz.c
> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>              .crossover = generic_fuzz_crossover
>      });
>  
> -    GString *name;
> +    g_autoptr(GString) name = g_string_new("");
>      const generic_fuzz_config *config;
>  
> -    for (int i = 0;
> -         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
> -         i++) {
> +    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
>          config = predefined_configs + i;
> -        name = g_string_new("generic-fuzz");
> -        g_string_append_printf(name, "-%s", config->name);
> +        g_string_printf(name, "generic-fuzz-%s", config->name);
>          fuzz_add_target(&(FuzzTarget){
> -                .name = name->str,
> +                .name = g_strdup(name->str),
>                  .description = "Predefined generic-fuzz config.",
>                  .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
>                  .pre_fuzz = generic_pre_fuzz,

Once that you are here, what about?
(Yes, I didn't care about the ARRAY_SIZE) but you got the idea.

Reviewed-by: Juan Quintela <quintela@redhat.com>

To your proposal with/without the change that I proposse.

modified   tests/qtest/fuzz/generic_fuzz.c
@@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
             .crossover = generic_fuzz_crossover
     });
 
-    GString *name;
     const generic_fuzz_config *config;
 
     for (int i = 0;
          i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
          i++) {
         config = predefined_configs + i;
-        name = g_string_new("generic-fuzz");
-        g_string_append_printf(name, "-%s", config->name);
         fuzz_add_target(&(FuzzTarget){
-                .name = name->str,
+                .name = g_strdup_printf("generic-fuzz-%s", config->name),
                 .description = "Predefined generic-fuzz config.",
                 .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
                 .pre_fuzz = generic_pre_fuzz,
Alexander Bulekov June 27, 2023, 7:54 a.m. UTC | #2
On 230626 2259, Alex Bennée wrote:
> An update to the clang tooling detects more issues with the code
> including a memory leak from the g_string_new() allocation. Clean up
> the code with g_autoptr and use ARRAY_SIZE while we are at it.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Reviewed-by: Alexander Bulekov <alxndr@bu.edu>

Thank you

> ---
>  tests/qtest/fuzz/generic_fuzz.c | 11 ++++-------
>  1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c
> index c525d22951..a4841181cc 100644
> --- a/tests/qtest/fuzz/generic_fuzz.c
> +++ b/tests/qtest/fuzz/generic_fuzz.c
> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>              .crossover = generic_fuzz_crossover
>      });
>  
> -    GString *name;
> +    g_autoptr(GString) name = g_string_new("");
>      const generic_fuzz_config *config;
>  
> -    for (int i = 0;
> -         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
> -         i++) {
> +    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
>          config = predefined_configs + i;
> -        name = g_string_new("generic-fuzz");
> -        g_string_append_printf(name, "-%s", config->name);
> +        g_string_printf(name, "generic-fuzz-%s", config->name);
>          fuzz_add_target(&(FuzzTarget){
> -                .name = name->str,
> +                .name = g_strdup(name->str),
>                  .description = "Predefined generic-fuzz config.",
>                  .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
>                  .pre_fuzz = generic_pre_fuzz,
> -- 
> 2.39.2
>
Philippe Mathieu-Daudé June 27, 2023, 8:53 a.m. UTC | #3
On 27/6/23 09:43, Juan Quintela wrote:
> Alex Bennée <alex.bennee@linaro.org> wrote:
>> An update to the clang tooling detects more issues with the code
>> including a memory leak from the g_string_new() allocation. Clean up
>> the code with g_autoptr and use ARRAY_SIZE while we are at it.
>>
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> ---
>>   tests/qtest/fuzz/generic_fuzz.c | 11 ++++-------
>>   1 file changed, 4 insertions(+), 7 deletions(-)
>>
>> diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c
>> index c525d22951..a4841181cc 100644
>> --- a/tests/qtest/fuzz/generic_fuzz.c
>> +++ b/tests/qtest/fuzz/generic_fuzz.c
>> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>>               .crossover = generic_fuzz_crossover
>>       });
>>   
>> -    GString *name;
>> +    g_autoptr(GString) name = g_string_new("");
>>       const generic_fuzz_config *config;
>>   
>> -    for (int i = 0;
>> -         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
>> -         i++) {
>> +    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
>>           config = predefined_configs + i;
>> -        name = g_string_new("generic-fuzz");
>> -        g_string_append_printf(name, "-%s", config->name);
>> +        g_string_printf(name, "generic-fuzz-%s", config->name);
>>           fuzz_add_target(&(FuzzTarget){
>> -                .name = name->str,
>> +                .name = g_strdup(name->str),
>>                   .description = "Predefined generic-fuzz config.",
>>                   .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
>>                   .pre_fuzz = generic_pre_fuzz,
> 
> Once that you are here, what about?
> (Yes, I didn't care about the ARRAY_SIZE) but you got the idea.
> 
> Reviewed-by: Juan Quintela <quintela@redhat.com>
> 
> To your proposal with/without the change that I proposse.
> 
> modified   tests/qtest/fuzz/generic_fuzz.c
> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>               .crossover = generic_fuzz_crossover
>       });
>   
> -    GString *name;
>       const generic_fuzz_config *config;
>   
>       for (int i = 0;
>            i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
>            i++) {
>           config = predefined_configs + i;
> -        name = g_string_new("generic-fuzz");
> -        g_string_append_printf(name, "-%s", config->name);
>           fuzz_add_target(&(FuzzTarget){
> -                .name = name->str,
> +                .name = g_strdup_printf("generic-fuzz-%s", config->name),

Even simpler is g_strconcat() suggested by Richard in v1:
https://lore.kernel.org/qemu-devel/42b497a0-e234-64db-e845-1c37b67839fc@linaro.org/

-- >8 --
--- a/tests/qtest/fuzz/generic_fuzz.c
+++ b/tests/qtest/fuzz/generic_fuzz.c
@@ -956,13 +956,8 @@ static void register_generic_fuzz_targets(void)

-    GString *name;
      const generic_fuzz_config *config;

-    for (int i = 0;
-         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
-         i++) {
-        config = predefined_configs + i;
-        name = g_string_new("generic-fuzz");
-        g_string_append_printf(name, "-%s", config->name);
+    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
+        config = &predefined_configs[i];
          fuzz_add_target(&(FuzzTarget){
-                .name = name->str,
+                .name = g_strconcat("generic-fuzz-", config->name, NULL),
                  .description = "Predefined generic-fuzz config.",
---
Alex Bennée June 27, 2023, 9:57 a.m. UTC | #4
Philippe Mathieu-Daudé <philmd@linaro.org> writes:

> On 27/6/23 09:43, Juan Quintela wrote:
>> Alex Bennée <alex.bennee@linaro.org> wrote:
>>> An update to the clang tooling detects more issues with the code
>>> including a memory leak from the g_string_new() allocation. Clean up
>>> the code with g_autoptr and use ARRAY_SIZE while we are at it.
>>>
>>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>>> ---
>>>   tests/qtest/fuzz/generic_fuzz.c | 11 ++++-------
>>>   1 file changed, 4 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c
>>> index c525d22951..a4841181cc 100644
>>> --- a/tests/qtest/fuzz/generic_fuzz.c
>>> +++ b/tests/qtest/fuzz/generic_fuzz.c
>>> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>>>               .crossover = generic_fuzz_crossover
>>>       });
>>>   -    GString *name;
>>> +    g_autoptr(GString) name = g_string_new("");
>>>       const generic_fuzz_config *config;
>>>   -    for (int i = 0;
>>> -         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
>>> -         i++) {
>>> +    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
>>>           config = predefined_configs + i;
>>> -        name = g_string_new("generic-fuzz");
>>> -        g_string_append_printf(name, "-%s", config->name);
>>> +        g_string_printf(name, "generic-fuzz-%s", config->name);
>>>           fuzz_add_target(&(FuzzTarget){
>>> -                .name = name->str,
>>> +                .name = g_strdup(name->str),
>>>                   .description = "Predefined generic-fuzz config.",
>>>                   .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
>>>                   .pre_fuzz = generic_pre_fuzz,
>> Once that you are here, what about?
>> (Yes, I didn't care about the ARRAY_SIZE) but you got the idea.
>> Reviewed-by: Juan Quintela <quintela@redhat.com>
>> To your proposal with/without the change that I proposse.
>> modified   tests/qtest/fuzz/generic_fuzz.c
>> @@ -954,17 +954,14 @@ static void register_generic_fuzz_targets(void)
>>               .crossover = generic_fuzz_crossover
>>       });
>>   -    GString *name;
>>       const generic_fuzz_config *config;
>>         for (int i = 0;
>>            i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
>>            i++) {
>>           config = predefined_configs + i;
>> -        name = g_string_new("generic-fuzz");
>> -        g_string_append_printf(name, "-%s", config->name);
>>           fuzz_add_target(&(FuzzTarget){
>> -                .name = name->str,
>> +                .name = g_strdup_printf("generic-fuzz-%s", config->name),
>
> Even simpler is g_strconcat() suggested by Richard in v1:
> https://lore.kernel.org/qemu-devel/42b497a0-e234-64db-e845-1c37b67839fc@linaro.org/

Doh - missed that will fix up.
diff mbox series

Patch

diff --git a/tests/qtest/fuzz/generic_fuzz.c b/tests/qtest/fuzz/generic_fuzz.c
index c525d22951..a4841181cc 100644
--- a/tests/qtest/fuzz/generic_fuzz.c
+++ b/tests/qtest/fuzz/generic_fuzz.c
@@ -954,17 +954,14 @@  static void register_generic_fuzz_targets(void)
             .crossover = generic_fuzz_crossover
     });
 
-    GString *name;
+    g_autoptr(GString) name = g_string_new("");
     const generic_fuzz_config *config;
 
-    for (int i = 0;
-         i < sizeof(predefined_configs) / sizeof(generic_fuzz_config);
-         i++) {
+    for (int i = 0; i < ARRAY_SIZE(predefined_configs); i++) {
         config = predefined_configs + i;
-        name = g_string_new("generic-fuzz");
-        g_string_append_printf(name, "-%s", config->name);
+        g_string_printf(name, "generic-fuzz-%s", config->name);
         fuzz_add_target(&(FuzzTarget){
-                .name = name->str,
+                .name = g_strdup(name->str),
                 .description = "Predefined generic-fuzz config.",
                 .get_init_cmdline = generic_fuzz_predefined_config_cmdline,
                 .pre_fuzz = generic_pre_fuzz,