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[v1,1/3] pc-bios/s390-ccw: Clarify alignment is in bytes

Message ID 20241001153618.17791-2-mhartmay@linux.ibm.com
State New
Headers show
Series pc-bios/s390-ccw: Small Makefile improvements | expand

Commit Message

Marc Hartmayer Oct. 1, 2024, 3:36 p.m. UTC 
From: Jens Remus <jremus@linux.ibm.com>

The assembler directive .align [1] has architecture-dependent behavior,
which may be ambiguous for the reader. Some architectures perform the
alignment in bytes, others in power of two. s390 does in bytes.

Use the directive .balign [2] instead, to clarify that the alignment
request is in bytes. No functional change.

[1] https://sourceware.org/binutils/docs/as/Align.html
[2] https://sourceware.org/binutils/docs/as/Balign.html

Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com>
---
 pc-bios/s390-ccw/start.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S
index 061b06591cff..576fc12c06e8 100644
--- a/pc-bios/s390-ccw/start.S
+++ b/pc-bios/s390-ccw/start.S
@@ -112,7 +112,7 @@  io_new_code:
     lctlg   %c6,%c6,0(%r15)
     br      %r14
 
-    .align  8
+    .balign 8
 bss_start_literal:
     .quad   __bss_start
 disabled_wait_psw:
@@ -125,7 +125,7 @@  io_new_mask:
     .quad   0x0000000180000000
 
 .bss
-    .align  8
+    .balign 8
 stack:
     .space  STACK_SIZE
     .size   stack,STACK_SIZE