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authorSebastian Huber <sebastian.huber@embedded-brains.de>2017-01-23 15:04:44 +0100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2017-01-24 08:39:22 +0100
commit3d20f5fbb7602ec7e27859f6c3ee97708e826bc8 (patch)
tree98ffe867f78adc2d2e5b6a04fd51b29722d693e4
parent4aa23c9641225476bd61b1f64e324bbd0f76eab5 (diff)
downloadrtems-3d20f5fbb7602ec7e27859f6c3ee97708e826bc8.tar.bz2
sparc: Relax CPU_STACK_ALIGNMENT
Close #2352.
-rw-r--r--cpukit/score/cpu/sparc/rtems/score/cpu.h15
1 files changed, 3 insertions, 12 deletions
diff --git a/cpukit/score/cpu/sparc/rtems/score/cpu.h b/cpukit/score/cpu/sparc/rtems/score/cpu.h
index 6d8e1f9e80..a59fc36e7d 100644
--- a/cpukit/score/cpu/sparc/rtems/score/cpu.h
+++ b/cpukit/score/cpu/sparc/rtems/score/cpu.h
@@ -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