* [PATCH v3] Coccinelle: noderef: Add new rules and correct the old rule
@ 2016-05-24 4:19 Vaishali Thakkar
2016-05-24 8:39 ` Julia Lawall
0 siblings, 1 reply; 3+ messages in thread
From: Vaishali Thakkar @ 2016-05-24 4:19 UTC (permalink / raw)
To: Julia.Lawall
Cc: Gilles.Muller, nicolas.palix, mmarek, cocci, linux-kernel,
Vaishali Thakkar
Add new rules to detect the cases where sizeof is used in
function calls as a argument.
Also, for the patch mode third rule should behave same as
second rule with arguments reversed. So, change that as well.
Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
---
Changes since v2:
- Add rules for function calls. This will behave as
more general rules and covers cases which were
covered by the rule in previous versions of the patch
- Change subject and commit log accordingly.
Changes since v1:
- Declare i as an expression instead of identifier to
cover more cases
---
scripts/coccinelle/misc/noderef.cocci | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/scripts/coccinelle/misc/noderef.cocci b/scripts/coccinelle/misc/noderef.cocci
index 80a831c..007f0de 100644
--- a/scripts/coccinelle/misc/noderef.cocci
+++ b/scripts/coccinelle/misc/noderef.cocci
@@ -16,6 +16,7 @@ virtual patch
@depends on patch@
expression *x;
expression f;
+expression i;
type T;
@@
@@ -30,15 +31,26 @@ f(...,(T)(x),...,sizeof(
+ *x
),...)
|
-f(...,sizeof(x),...,(T)(
+f(...,sizeof(
+- x
++ *x
+ ),...,(T)(x),...)
+|
+f(...,(T)(x),...,i*sizeof(
- x
+ *x
),...)
+|
+f(...,i*sizeof(
+- x
++ *x
+ ),...,(T)(x),...)
)
@r depends on !patch@
expression *x;
expression f;
+expression i;
position p;
type T;
@@
@@ -49,6 +61,10 @@ type T;
*f(...,(T)(x),...,sizeof@p(x),...)
|
*f(...,sizeof@p(x),...,(T)(x),...)
+|
+*f(...,(T)(x),...,i*sizeof@p(x),...)
+|
+*f(...,i*sizeof@p(x),...,(T)(x),...)
)
@script:python depends on org@
--
2.1.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v3] Coccinelle: noderef: Add new rules and correct the old rule
2016-05-24 4:19 [PATCH v3] Coccinelle: noderef: Add new rules and correct the old rule Vaishali Thakkar
@ 2016-05-24 8:39 ` Julia Lawall
2016-06-20 15:20 ` Michal Marek
0 siblings, 1 reply; 3+ messages in thread
From: Julia Lawall @ 2016-05-24 8:39 UTC (permalink / raw)
To: Vaishali Thakkar
Cc: Gilles Muller, nicolas.palix, mmarek, cocci, linux-kernel
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
On Tue, 24 May 2016, Vaishali Thakkar wrote:
> Add new rules to detect the cases where sizeof is used in
> function calls as a argument.
>
> Also, for the patch mode third rule should behave same as
> second rule with arguments reversed. So, change that as well.
>
> Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
> ---
> Changes since v2:
> - Add rules for function calls. This will behave as
> more general rules and covers cases which were
> covered by the rule in previous versions of the patch
> - Change subject and commit log accordingly.
> Changes since v1:
> - Declare i as an expression instead of identifier to
> cover more cases
> ---
> scripts/coccinelle/misc/noderef.cocci | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/coccinelle/misc/noderef.cocci b/scripts/coccinelle/misc/noderef.cocci
> index 80a831c..007f0de 100644
> --- a/scripts/coccinelle/misc/noderef.cocci
> +++ b/scripts/coccinelle/misc/noderef.cocci
> @@ -16,6 +16,7 @@ virtual patch
> @depends on patch@
> expression *x;
> expression f;
> +expression i;
> type T;
> @@
>
> @@ -30,15 +31,26 @@ f(...,(T)(x),...,sizeof(
> + *x
> ),...)
> |
> -f(...,sizeof(x),...,(T)(
> +f(...,sizeof(
> +- x
> ++ *x
> + ),...,(T)(x),...)
> +|
> +f(...,(T)(x),...,i*sizeof(
> - x
> + *x
> ),...)
> +|
> +f(...,i*sizeof(
> +- x
> ++ *x
> + ),...,(T)(x),...)
> )
>
> @r depends on !patch@
> expression *x;
> expression f;
> +expression i;
> position p;
> type T;
> @@
> @@ -49,6 +61,10 @@ type T;
> *f(...,(T)(x),...,sizeof@p(x),...)
> |
> *f(...,sizeof@p(x),...,(T)(x),...)
> +|
> +*f(...,(T)(x),...,i*sizeof@p(x),...)
> +|
> +*f(...,i*sizeof@p(x),...,(T)(x),...)
> )
>
> @script:python depends on org@
> --
> 2.1.4
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v3] Coccinelle: noderef: Add new rules and correct the old rule
2016-05-24 8:39 ` Julia Lawall
@ 2016-06-20 15:20 ` Michal Marek
0 siblings, 0 replies; 3+ messages in thread
From: Michal Marek @ 2016-06-20 15:20 UTC (permalink / raw)
To: Julia Lawall, Vaishali Thakkar
Cc: Gilles Muller, nicolas.palix, cocci, linux-kernel
On 2016-05-24 10:39, Julia Lawall wrote:
> Acked-by: Julia Lawall <julia.lawall@lip6.fr>
>
> On Tue, 24 May 2016, Vaishali Thakkar wrote:
>
>> Add new rules to detect the cases where sizeof is used in
>> function calls as a argument.
>>
>> Also, for the patch mode third rule should behave same as
>> second rule with arguments reversed. So, change that as well.
>>
>> Signed-off-by: Vaishali Thakkar <vaishali.thakkar@oracle.com>
Applied to kbuild.git#misc.
Michal
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-05-24 8:39 ` Julia Lawall
2016-06-20 15:20 ` Michal Marek
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