RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

score: Move Thread_Control::Registers member

Browse Source 
Place this member placed directly after the end of the common block so that
the structure offsets are as small as possible.  This helps on instruction
set architectures with a very limited range for intermediate values.  For
example, see the __aeabi_read_tp() implementation for ARM Thumb-1.

Update #3835.
This commit is contained in:
Sebastian Huber
2022-10-14 10:46:06 +02:00
parent 2846b17d7e
commit 15bba4aecf
1 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
cpukit/include/rtems/score/thread.h
View File

@@ -858,6 +858,15 @@ struct _Thread_Control {
#endif #endif
/*================= end of common block =================*/ /*================= end of common block =================*/
/**
* @brief This member contains the context of this thread.
*
* This member is placed directly after the end of the common block so that
* the structure offsets are as small as possible. This helps on instruction
* set architectures with a very limited range for intermediate values.
*/
Context_Control Registers;
#if defined(RTEMS_SMP) && defined(RTEMS_PROFILING) #if defined(RTEMS_SMP) && defined(RTEMS_PROFILING)
/** /**
* @brief Potpourri lock statistics. * @brief Potpourri lock statistics.
@@ -913,8 +922,6 @@ struct _Thread_Control {
Thread_Action_control Post_switch_actions; Thread_Action_control Post_switch_actions;
/** This field contains the context of this thread. */
Context_Control Registers;
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE ) #if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
/** This field points to the floating point context for this thread. /** This field points to the floating point context for this thread.
* If NULL, the thread is integer only. * If NULL, the thread is integer only.