From ce6ddae03639529d5ca3a9eebb2d8b02bfd2ea97 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Mon, 4 Mar 2019 10:48:42 +0100 Subject: [PATCH] S390: Increase function alignment to 16 bytes. Set the default function alignment to 16 bytes in order to get rid of some unwanted performance effects. Please see also GCC commit "S/390: Set default function alignment to 16." (Subversion revision 262817) ChangeLog: * sysdeps/s390/s390-64/sysdep.h(ENTRY): Use alignment of 16byte. * sysdeps/s390/s390-32/sysdep.h: Likewise. --- ChangeLog | 5 +++++ sysdeps/s390/s390-32/sysdep.h | 2 +- sysdeps/s390/s390-64/sysdep.h | 2 +- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index cb439258d6..fb092bad91 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2019-03-04 Stefan Liebler + + * sysdeps/s390/s390-64/sysdep.h (ENTRY): Use alignment of 16byte. + * sysdeps/s390/s390-32/sysdep.h: Likewise. + 2019-03-02 TAMUKI Shoichi [BZ #24162] diff --git a/sysdeps/s390/s390-32/sysdep.h b/sysdeps/s390/s390-32/sysdep.h index 6605dde237..4a441e1204 100644 --- a/sysdeps/s390/s390-32/sysdep.h +++ b/sysdeps/s390/s390-32/sysdep.h @@ -32,7 +32,7 @@ #define ENTRY(name) \ .globl C_SYMBOL_NAME(name); \ .type C_SYMBOL_NAME(name),@function; \ - .align ALIGNARG(2); \ + .align ALIGNARG(4); \ C_LABEL(name) \ cfi_startproc; \ CALL_MCOUNT diff --git a/sysdeps/s390/s390-64/sysdep.h b/sysdeps/s390/s390-64/sysdep.h index 99dbf3f444..0531fa5823 100644 --- a/sysdeps/s390/s390-64/sysdep.h +++ b/sysdeps/s390/s390-64/sysdep.h @@ -32,7 +32,7 @@ #define ENTRY(name) \ .globl C_SYMBOL_NAME(name); \ .type C_SYMBOL_NAME(name),@function; \ - .align ALIGNARG(2); \ + .align ALIGNARG(4); \ C_LABEL(name) \ cfi_startproc; \ CALL_MCOUNT -- 2.43.5