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systemd/coccinelle/memzero.cocci
Frantisek Sumsal 33af88cf70 coccinelle: ignore macro transformations in the macros themselves
For example, the following transformation:

- sizeof(s)-1
+ STRLEN(s)

would replace sizeof by STRLEN even in the STRLEN macro definition
itself, which generates following nonsensical patch:

--- src/basic/macro.h
+++ /tmp/cocci-output-8753-b50773-macro.h
@@ -182,7 +182,7 @@ static inline unsigned long ALIGN_POWER2
  *          Contrary to strlen(), this is a constant expression.
  * @x: a string literal.
  */
-#define STRLEN(x) (sizeof(""x"") - 1)
+#define STRLEN(x) (STRLEN("" x ""))

 /*
  * container_of - cast a member of a structure out to the containing structure

Let's exclude the macro itself from the transformation to avoid this
2019-04-28 22:11:15 +02:00

39 lines
376 B
Plaintext

@@
expression s;
@@
- memset(&s, 0, sizeof(s))
+ zero(s)
@@
expression s;
@@
- memset(s, 0, sizeof(*s))
+ zero(*s)
@@
expression s;
@@
- bzero(&s, sizeof(s))
+ zero(s)
@@
expression s;
@@
- bzero(s, sizeof(*s))
+ zero(*s)
@@
expression a, b;
@@
(
#define memzero
&
- memset(a, 0, b)
+ memzero(a, b)
)
@@
expression a, b;
@@
(
#define memzero
&
- bzero(a, b)
+ memzero(a, b)
)