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systemd/coccinelle/debug-logging.cocci

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licensing: add spdx to our .cocci files Since those are chunks of code based on our codebase, it's easiest to use the same license.
2021-10-01 13:28:36 +03:00
/* SPDX-License-Identifier: LGPL-2.1-or-later */
tree-wide: add DEBUG_LOGGING macro that checks whether debug logging is on (#7645) This makes things a bit easier to read I think, and also makes sure we always use the _unlikely_ wrapper around it, which so far we used sometimes and other times we didn't. Let's clean that up.
2017-12-15 13:09:00 +03:00
@@
@@
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 16:03:47 +03:00
(
#define DEBUG_LOGGING
&
tree-wide: add DEBUG_LOGGING macro that checks whether debug logging is on (#7645) This makes things a bit easier to read I think, and also makes sure we always use the _unlikely_ wrapper around it, which so far we used sometimes and other times we didn't. Let's clean that up.
2017-12-15 13:09:00 +03:00
- _unlikely_(log_get_max_level() >= LOG_DEBUG)
+ DEBUG_LOGGING
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 16:03:47 +03:00
)
tree-wide: add DEBUG_LOGGING macro that checks whether debug logging is on (#7645) This makes things a bit easier to read I think, and also makes sure we always use the _unlikely_ wrapper around it, which so far we used sometimes and other times we didn't. Let's clean that up.
2017-12-15 13:09:00 +03:00
@@
@@
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 16:03:47 +03:00
(
#define DEBUG_LOGGING
&
tree-wide: add DEBUG_LOGGING macro that checks whether debug logging is on (#7645) This makes things a bit easier to read I think, and also makes sure we always use the _unlikely_ wrapper around it, which so far we used sometimes and other times we didn't. Let's clean that up.
2017-12-15 13:09:00 +03:00
- log_get_max_level() >= LOG_DEBUG
+ DEBUG_LOGGING
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 16:03:47 +03:00
)
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