Attachment 698 Details for Bug 1433 – conditional no_reorder linker flag application

[patch] conditional no_reorder linker flag application

file_1433.txt (text/plain), 2.00 KB, created by Gerhard Sittig on 2020-11-03 18:34:22 CET

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Creator: Gerhard Sittig

Created: 2020-11-03 18:34:22 CET

Size: 2.00 KB

patch

obsolete

> src/driver_list_start.c  |  1 +
> src/driver_list_stop.c   |  1 +
> src/libsigrok-internal.h | 10 ++++++++++
> 3 files changed, 12 insertions(+)
>
>diff --git a/src/driver_list_start.c b/src/driver_list_start.c
>index 7b6c7755c65f..535e33122bc6 100644
>--- a/src/driver_list_start.c
>+++ b/src/driver_list_start.c
>@@ -28,6 +28,7 @@
>  */
> 
> SR_PRIV const struct sr_dev_driver *sr_driver_list__start[]
>+	SR_DRIVER_LIST_NOREORDER
> 	__attribute__((section (SR_DRIVER_LIST_SECTION),
> 		       used, aligned(sizeof(struct sr_dev_driver *))))
>   = { NULL /* Dummy item, as zero length arrays are not allowed by C99 */ };
>diff --git a/src/driver_list_stop.c b/src/driver_list_stop.c
>index ff2c51de16e3..eefda05595ea 100644
>--- a/src/driver_list_stop.c
>+++ b/src/driver_list_stop.c
>@@ -28,6 +28,7 @@
>  */
> 
> SR_PRIV const struct sr_dev_driver *sr_driver_list__stop[]
>+	SR_DRIVER_LIST_NOREORDER
> 	__attribute__((section (SR_DRIVER_LIST_SECTION),
> 		       used, aligned(sizeof(struct sr_dev_driver *))))
>   = { NULL /* Dummy item, as zero length arrays are not allowed by C99 */ };
>diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
>index 98d1631e2f4a..6db384c4a206 100644
>--- a/src/libsigrok-internal.h
>+++ b/src/libsigrok-internal.h
>@@ -967,6 +967,15 @@ static inline void write_dblle_inc(uint8_t **p, double x)
> #define SR_DRIVER_LIST_SECTION "__sr_driver_list"
> #endif
> 
>+#if defined __has_attribute
>+#  if __has_attribute(no_reorder)
>+#    define SR_DRIVER_LIST_NOREORDER __attribute__((no_reorder))
>+#  endif
>+#endif
>+#if !defined SR_DRIVER_LIST_NOREORDER
>+#  define SR_DRIVER_LIST_NOREORDER /* EMPTY */
>+#endif
>+
> /**
>  * Register a list of hardware drivers.
>  *
>@@ -996,6 +1005,7 @@ static inline void write_dblle_inc(uint8_t **p, double x)
>  */
> #define SR_REGISTER_DEV_DRIVER_LIST(name, ...) \
> 	static const struct sr_dev_driver *name[] \
>+		SR_DRIVER_LIST_NOREORDER \
> 		__attribute__((section (SR_DRIVER_LIST_SECTION), used, \
> 			aligned(sizeof(struct sr_dev_driver *)))) \
> 		= { \

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Attachments on bug 1433: 556 | 697 | 698