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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-07-14 13:59:23 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-07-15 10:46:02 +0200 |
| commit | 4b911a7516750ef1c43f9dc387e0206e1086623b (patch) | |
| tree | d3c1d735196e714ec1531f21bed7507ad5c88b1e /cpukit/include/rtems/score | |
| parent | bsps: Sort .noinit* sections (diff) | |
| download | rtems-4b911a7516750ef1c43f9dc387e0206e1086623b.tar.bz2 | |
score: Place object controls into .noinit sections
Place the statically allocated object control blocks, local tables, and thread
queue heads into the dedicated .noinit intput sections. The output section is
not zero initialized. Placing these elements into the .noinit section reduces
the system initialization time by decreasing the .bss section size.
It may improve the cache efficiency since the mostly read local tables are
placed in a contiguous memory area.
Update #4678.
Diffstat (limited to 'cpukit/include/rtems/score')
| -rw-r--r-- | cpukit/include/rtems/score/objectdata.h | 7 | ||||
| -rw-r--r-- | cpukit/include/rtems/score/thread.h | 9 |
2 files changed, 11 insertions, 5 deletions
diff --git a/cpukit/include/rtems/score/objectdata.h b/cpukit/include/rtems/score/objectdata.h index d624f182f9..dc03f23461 100644 --- a/cpukit/include/rtems/score/objectdata.h +++ b/cpukit/include/rtems/score/objectdata.h @@ -447,9 +447,12 @@ Objects_Information name##_Information = { \ * multiprocessing (RTEMS_MULTIPROCESSING) is enabled. */ #define OBJECTS_INFORMATION_DEFINE( name, api, cls, type, max, nl, ex ) \ -static Objects_Control * \ +static RTEMS_SECTION( ".noinit.rtems.content.local_table" ) \ +Objects_Control * \ name##_Local_table[ _Objects_Maximum_per_allocation( max ) ]; \ -static type name##_Objects[ _Objects_Maximum_per_allocation( max ) ]; \ +static RTEMS_SECTION( ".noinit.rtems.content.objects" ) \ +type \ +name##_Objects[ _Objects_Maximum_per_allocation( max ) ]; \ Objects_Information name##_Information = { \ _Objects_Build_id( api, cls, 1, _Objects_Maximum_per_allocation( max ) ), \ name##_Local_table, \ diff --git a/cpukit/include/rtems/score/thread.h b/cpukit/include/rtems/score/thread.h index dd32b51a5f..2833a81710 100644 --- a/cpukit/include/rtems/score/thread.h +++ b/cpukit/include/rtems/score/thread.h @@ -1145,11 +1145,14 @@ Thread_Information name##_Information = { \ Objects_Control *_Thread_Allocate_unlimited( Objects_Information *information ); #define THREAD_INFORMATION_DEFINE( name, api, cls, max ) \ -static Objects_Control * \ +static RTEMS_SECTION( ".noinit.rtems.content.local_table" ) \ +Objects_Control * \ name##_Local_table[ _Objects_Maximum_per_allocation( max ) ]; \ -static Thread_Configured_control \ +static RTEMS_SECTION( ".noinit.rtems.content.objects" ) \ +Thread_Configured_control \ name##_Objects[ _Objects_Maximum_per_allocation( max ) ]; \ -static Thread_queue_Configured_heads \ +static RTEMS_SECTION( ".noinit.rtems.content.objects" ) \ +Thread_queue_Configured_heads \ name##_Heads[ _Objects_Maximum_per_allocation( max ) ]; \ Thread_Information name##_Information = { \ { \ |