Mailing List Archive

[PATCH 6/7] s390x-asm: move constant data to read-only section
* cipher/chacha20-s390x.S: Move constant data to read-only
section; Align functions to 16 bytes.
* cipher/poly1305-s390x.S: Likewise.
--

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
---
cipher/chacha20-s390x.S | 15 ++++++++++-----
cipher/poly1305-s390x.S | 2 +-
2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/cipher/chacha20-s390x.S b/cipher/chacha20-s390x.S
index 9b1d59c6..5a931998 100644
--- a/cipher/chacha20-s390x.S
+++ b/cipher/chacha20-s390x.S
@@ -26,9 +26,12 @@
#include "asm-poly1305-s390x.h"

.machine "z13+vx"
-.text

+.section .rodata
+
+ELF(.type _gcry_chacha20_s390x_vx_constants,@function;)
.balign 16
+_gcry_chacha20_s390x_vx_constants:
.Lconsts:
.Lwordswap:
.byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3
@@ -302,7 +305,9 @@
4-way && 2-way && 1-way chacha20 ("horizontal")
**********************************************************************/

-.balign 8
+.text
+
+.balign 16
.globl _gcry_chacha20_s390x_vx_blocks4_2_1
ELF(.type _gcry_chacha20_s390x_vx_blocks4_2_1,@function;)

@@ -578,7 +583,7 @@ ELF(.size _gcry_chacha20_s390x_vx_blocks4_2_1,
4-way && 2-way && 1-way stitched chacha20-poly1305 ("horizontal")
**********************************************************************/

-.balign 8
+.balign 16
.globl _gcry_chacha20_poly1305_s390x_vx_blocks4_2_1
ELF(.type _gcry_chacha20_poly1305_s390x_vx_blocks4_2_1,@function;)

@@ -1058,7 +1063,7 @@ ELF(.size _gcry_chacha20_poly1305_s390x_vx_blocks4_2_1,
vpdi vc, tmpc, vd, 0; \
vpdi vd, tmpc, vd, 5;

-.balign 8
+.balign 16
.globl _gcry_chacha20_s390x_vx_blocks8
ELF(.type _gcry_chacha20_s390x_vx_blocks8,@function;)

@@ -1276,7 +1281,7 @@ ELF(.size _gcry_chacha20_s390x_vx_blocks8,
8-way stitched chacha20-poly1305 ("vertical")
**********************************************************************/

-.balign 8
+.balign 16
.globl _gcry_chacha20_poly1305_s390x_vx_blocks8
ELF(.type _gcry_chacha20_poly1305_s390x_vx_blocks8,@function;)

diff --git a/cipher/poly1305-s390x.S b/cipher/poly1305-s390x.S
index 28bed560..5ba424e4 100644
--- a/cipher/poly1305-s390x.S
+++ b/cipher/poly1305-s390x.S
@@ -26,7 +26,7 @@

.text

-.balign 8
+.balign 16
.globl _gcry_poly1305_s390x_blocks1
ELF(.type _gcry_poly1305_s390x_blocks1,@function;)

--
2.37.2


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