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authorAndy Polyakov <appro@openssl.org>2012-04-09 15:12:45 +0000
committerAndy Polyakov <appro@openssl.org>2012-04-09 15:12:45 +0000
commitebe81134c008c050b046813f0987636f01298fe6 (patch)
tree640c219085d250b0b72f7418edd9668cf076b997 /crypto/aes
parenta1d573e28293cba4c1c06505f80069e8b13383c1 (diff)
aes-s390x.pl: fix crash in AES_set_decrypt_key in linux32-s390x build [from HEAD].
Diffstat (limited to 'crypto/aes')
-rw-r--r--crypto/aes/asm/aes-s390x.pl34
1 files changed, 15 insertions, 19 deletions
diff --git a/crypto/aes/asm/aes-s390x.pl b/crypto/aes/asm/aes-s390x.pl
index 394ab487ad..445a1e6762 100644
--- a/crypto/aes/asm/aes-s390x.pl
+++ b/crypto/aes/asm/aes-s390x.pl
@@ -837,7 +837,8 @@ $code.=<<___ if (!$softonly);
je 1f
lg %r1,24($inp)
stg %r1,24($key)
-1: st $bits,236($key) # save bits
+1: st $bits,236($key) # save bits [for debugging purposes]
+ lgr $t0,%r5
st %r5,240($key) # save km code
lghi %r2,0
br %r14
@@ -845,7 +846,7 @@ ___
$code.=<<___;
.align 16
.Lekey_internal:
- stm${g} %r6,%r13,6*$SIZE_T($sp) # all non-volatile regs
+ stm${g} %r4,%r13,4*$SIZE_T($sp) # all non-volatile regs and $key
larl $tbl,AES_Te+2048
@@ -905,8 +906,9 @@ $code.=<<___;
la $key,16($key) # key+=4
la $t3,4($t3) # i++
brct $rounds,.L128_loop
+ lghi $t0,10
lghi %r2,0
- lm${g} %r6,%r13,6*$SIZE_T($sp)
+ lm${g} %r4,%r13,4*$SIZE_T($sp)
br $ra
.align 16
@@ -953,8 +955,9 @@ $code.=<<___;
st $s2,32($key)
st $s3,36($key)
brct $rounds,.L192_continue
+ lghi $t0,12
lghi %r2,0
- lm${g} %r6,%r13,6*$SIZE_T($sp)
+ lm${g} %r4,%r13,4*$SIZE_T($sp)
br $ra
.align 16
@@ -1015,8 +1018,9 @@ $code.=<<___;
st $s2,40($key)
st $s3,44($key)
brct $rounds,.L256_continue
+ lghi $t0,14
lghi %r2,0
- lm${g} %r6,%r13,6*$SIZE_T($sp)
+ lm${g} %r4,%r13,4*$SIZE_T($sp)
br $ra
.align 16
@@ -1067,34 +1071,26 @@ $code.=<<___;
.type private_AES_set_decrypt_key,\@function
.align 16
private_AES_set_decrypt_key:
- st${g} $key,4*$SIZE_T($sp) # I rely on AES_set_encrypt_key to
- st${g} $ra,14*$SIZE_T($sp) # save non-volatile registers!
+ #st${g} $key,4*$SIZE_T($sp) # I rely on AES_set_encrypt_key to
+ st${g} $ra,14*$SIZE_T($sp) # save non-volatile registers and $key!
bras $ra,_s390x_AES_set_encrypt_key
- l${g} $key,4*$SIZE_T($sp)
+ #l${g} $key,4*$SIZE_T($sp)
l${g} $ra,14*$SIZE_T($sp)
ltgr %r2,%r2
bnzr $ra
___
$code.=<<___ if (!$softonly);
- l $t0,240($key)
+ #l $t0,240($key)
lhi $t1,16
cr $t0,$t1
jl .Lgo
oill $t0,0x80 # set "decrypt" bit
st $t0,240($key)
br $ra
-
-.align 16
-.Ldkey_internal:
- st${g} $key,4*$SIZE_T($sp)
- st${g} $ra,14*$SIZE_T($sp)
- bras $ra,.Lekey_internal
- l${g} $key,4*$SIZE_T($sp)
- l${g} $ra,14*$SIZE_T($sp)
___
$code.=<<___;
-
-.Lgo: llgf $rounds,240($key)
+.align 16
+.Lgo: lgr $rounds,$t0 #llgf $rounds,240($key)
la $i1,0($key)
sllg $i2,$rounds,4
la $i2,0($i2,$key)