summaryrefslogtreecommitdiffstats
path: root/crypto/chacha
diff options
context:
space:
mode:
authorAndy Polyakov <appro@openssl.org>2019-02-15 22:16:41 +0100
committerRichard Levitte <levitte@openssl.org>2019-02-16 17:01:15 +0100
commitdb42bb440e76399b89fc8ae04644441a2a5f6821 (patch)
tree0ddc0a16632b60834e44805d2e329b774381f323 /crypto/chacha
parentARM assembly pack: make it Windows-friendly. (diff)
downloadopenssl-db42bb440e76399b89fc8ae04644441a2a5f6821.tar.xz
openssl-db42bb440e76399b89fc8ae04644441a2a5f6821.zip
ARM64 assembly pack: make it Windows-friendly.
"Windows friendliness" means a) unified PIC-ification, unified across all platforms; b) unified commantary delimiter; c) explicit ldur/stur, as Visual Studio assembler can't automatically encode ldr/str as ldur/stur when needed. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8256)
Diffstat (limited to 'crypto/chacha')
-rwxr-xr-xcrypto/chacha/asm/chacha-armv8.pl19
1 files changed, 5 insertions, 14 deletions
diff --git a/crypto/chacha/asm/chacha-armv8.pl b/crypto/chacha/asm/chacha-armv8.pl
index cee787d4d6..56ba1c36ba 100755
--- a/crypto/chacha/asm/chacha-armv8.pl
+++ b/crypto/chacha/asm/chacha-armv8.pl
@@ -131,12 +131,6 @@ $code.=<<___;
.quad 0x3320646e61707865,0x6b20657479622d32 // endian-neutral
.Lone:
.long 1,0,0,0
-.LOPENSSL_armcap_P:
-#ifdef __ILP32__
-.long OPENSSL_armcap_P-.
-#else
-.quad OPENSSL_armcap_P-.
-#endif
.asciz "ChaCha20 for ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
.globl ChaCha20_ctr32
@@ -144,17 +138,13 @@ $code.=<<___;
.align 5
ChaCha20_ctr32:
cbz $len,.Labort
- adr @x[0],.LOPENSSL_armcap_P
cmp $len,#192
b.lo .Lshort
-#ifdef __ILP32__
- ldrsw @x[1],[@x[0]]
-#else
- ldr @x[1],[@x[0]]
-#endif
- ldr w17,[@x[1],@x[0]]
+
+ adrp x17,OPENSSL_armcap_P
+ ldr w17,[x17,#:lo12:OPENSSL_armcap_P]
tst w17,#ARMV7_NEON
- b.ne ChaCha20_neon
+ b.ne .LChaCha20_neon
.Lshort:
.inst 0xd503233f // paciasp
@@ -380,6 +370,7 @@ $code.=<<___;
.type ChaCha20_neon,%function
.align 5
ChaCha20_neon:
+.LChaCha20_neon:
.inst 0xd503233f // paciasp
stp x29,x30,[sp,#-96]!
add x29,sp,#0