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| author | Andy Polyakov <appro@openssl.org> | 2016-06-30 15:57:57 +0200 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2016-07-01 14:25:08 +0200 |
| commit | f198cc43a0eca4bf1a8e7f60c51af560f4346dc8 (patch) | |
| tree | 358cd4d520381d787c70c7db7ac0858d6c473be5 /crypto/perlasm | |
| parent | 0685b15a68db1cd24678432f38b88f217495cbb9 (diff) | |
| download | openssl-f198cc43a0eca4bf1a8e7f60c51af560f4346dc8.tar.gz | |
SPARC assembly pack: enforce V8+ ABI constraints.
Even though it's hard to imagine, it turned out that upper half of
arguments passed to V8+ subroutine can be non-zero.
["n" pseudo-instructions, such as srln being srl in 32-bit case and
srlx in 64-bit one, were implemented in binutils 2.10. It's assumed
that Solaris assembler implemented it around same time, i.e. 2000.]
Reviewed-by: Richard Levitte <levitte@openssl.org>
Diffstat (limited to 'crypto/perlasm')
| -rw-r--r-- | crypto/perlasm/sparcv9_modes.pl | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/perlasm/sparcv9_modes.pl b/crypto/perlasm/sparcv9_modes.pl index 47c2e53b99..bfdada8540 100644 --- a/crypto/perlasm/sparcv9_modes.pl +++ b/crypto/perlasm/sparcv9_modes.pl @@ -48,6 +48,7 @@ ${alg}${bits}_t4_cbc_encrypt: save %sp, -$::frame, %sp cmp $len, 0 be,pn $::size_t_cc, .L${bits}_cbc_enc_abort + srln $len, 0, $len ! needed on v8+, "nop" on v9 sub $inp, $out, $blk_init ! $inp!=$out ___ $::code.=<<___ if (!$::evp); @@ -265,6 +266,7 @@ ${alg}${bits}_t4_cbc_decrypt: save %sp, -$::frame, %sp cmp $len, 0 be,pn $::size_t_cc, .L${bits}_cbc_dec_abort + srln $len, 0, $len ! needed on v8+, "nop" on v9 sub $inp, $out, $blk_init ! $inp!=$out ___ $::code.=<<___ if (!$::evp); @@ -624,6 +626,7 @@ $::code.=<<___; .align 32 ${alg}${bits}_t4_ctr32_encrypt: save %sp, -$::frame, %sp + srln $len, 0, $len ! needed on v8+, "nop" on v9 prefetch [$inp], 20 prefetch [$inp + 63], 20 @@ -927,6 +930,7 @@ $::code.=<<___; .align 32 ${alg}${bits}_t4_xts_${dir}crypt: save %sp, -$::frame-16, %sp + srln $len, 0, $len ! needed on v8+, "nop" on v9 mov $ivec, %o0 add %fp, $::bias-16, %o1 |