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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-07-26 19:26:28 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-07-26 19:26:28 +0000 |
| commit | 17508d02bba1d47f4cf884b190566e72f69adb4e (patch) | |
| tree | a1b8738fd54754c0210ac709a4b650bc7d3c4538 /cpukit/score/include/rtems | |
| parent | Patch rtems-rc-20000713-1-cvs.diff from Ralf Corsepius <corsepiu@faw.uni-ulm.de> (diff) | |
| download | rtems-17508d02bba1d47f4cf884b190566e72f69adb4e.tar.bz2 | |
Port of RTEMS to the Texas Instruments C3x/C4x DSP families including
a BSP (c4xsim) supporting the simulator included with gdb. This port
was done by Joel Sherrill and Jennifer Averett of OAR Corporation.
Also included with this port is a space/time optimization to eliminate
FP context switch management on CPUs without hardware or software FP.
An issue with this port was that sizeof(unsigned32) = sizeof(unsigned8)
on this CPU. This required addressing alignment checks and assumptions
as well as fixing code that assumed sizeof(unsigned32) == 4.
Diffstat (limited to 'cpukit/score/include/rtems')
| -rw-r--r-- | cpukit/score/include/rtems/score/thread.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/thread.h b/cpukit/score/include/rtems/score/thread.h index 4c8032f558..99b38e2034 100644 --- a/cpukit/score/include/rtems/score/thread.h +++ b/cpukit/score/include/rtems/score/thread.h @@ -119,7 +119,9 @@ typedef struct { Priority_Control initial_priority; /* initial priority */ boolean core_allocated_stack; Stack_Control Initial_stack; /* stack information */ +#if ( CPU_HARDWARE_FP == TRUE ) void *fp_context; /* initial FP context area address */ +#endif void *stack; /* initial stack area address */ } Thread_Start_information; @@ -215,7 +217,9 @@ struct Thread_Control_struct { Priority_Information Priority_map; Thread_Start_information Start; Context_Control Registers; +#if ( CPU_HARDWARE_FP == TRUE ) void *fp_context; +#endif void *API_Extensions[ THREAD_API_LAST + 1 ]; void **extensions; rtems_task_variable_t *task_variables; @@ -308,7 +312,9 @@ SCORE_EXTERN Thread_Control *_Thread_Heir; * context is currently loaded. */ +#if ( CPU_HARDWARE_FP == TRUE ) SCORE_EXTERN Thread_Control *_Thread_Allocated_fp; +#endif /* * _Thread_Handler_initialization |