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

sparc: Relax CPU_STACK_ALIGNMENT

Browse Source 
Close #2352.
This commit is contained in:
Sebastian Huber
2017-01-23 15:04:44 +01:00
parent 4aa23c9641
commit 3d20f5fbb7
1 changed files with 3 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
cpukit/score/cpu/sparc/rtems/score/cpu.h
View File

@@ -826,19 +826,10 @@ extern const CPU_Trap_table_entry _CPU_Trap_slot_template;
#define CPU_PARTITION_ALIGNMENT CPU_ALIGNMENT
/**
* This number corresponds to the byte alignment requirement for the
* stack. This alignment requirement may be stricter than that for the
* data types alignment specified by CPU_ALIGNMENT. If the CPU_ALIGNMENT
* is strict enough for the stack, then this should be set to 0.
*
* NOTE: This must be a power of 2 either 0 or greater than CPU_ALIGNMENT.
*
* The alignment restrictions for the SPARC are not that strict but this
* should unsure that the stack is always sufficiently alignment that the
* window overflow, underflow, and flush routines can use double word loads
* and stores.
* Stack frames must be doubleword aligned according to the System V ABI for
* SPARC.
*/
#define CPU_STACK_ALIGNMENT 16
#define CPU_STACK_ALIGNMENT CPU_ALIGNMENT
#ifndef ASM