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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-10-22 17:07:53 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2013-10-22 19:57:27 +0300 |
| commit | 98674fdaa30ab22a3ac86ca05d688b5b6112895d (patch) | |
| tree | 937374c6701fa80161a727b200aaddf0933d37c5 /configure.ac | |
| parent | e67c67321ce240c93dd0fa2b21c649c0a8e233f7 (diff) | |
| download | libgcrypt-98674fdaa30ab22a3ac86ca05d688b5b6112895d.tar.gz | |
twofish: add ARMv6 assembly implementation
* cipher/Makefile.am: Add 'twofish-armv6.S'.
* cipher/twofish-armv6.S: New.
* cipher/twofish.c (USE_ARMV6_ASM): New macro.
[USE_ARMV6_ASM] (_gcry_twofish_armv6_encrypt_block)
(_gcry_twofish_armv6_decrypt_block): New prototypes.
[USE_AMDV6_ASM] (twofish_encrypt, twofish_decrypt): Add.
[USE_AMD64_ASM] (do_twofish_encrypt, do_twofish_decrypt): Remove.
(_gcry_twofish_ctr_enc, _gcry_twofish_cfb_dec): Use 'twofish_encrypt'
instead of 'do_twofish_encrypt'.
(_gcry_twofish_cbc_dec): Use 'twofish_decrypt' instead of
'do_twofish_decrypt'.
* configure.ac [arm]: Add 'twofish-armv6.lo'.
--
Add optimized ARMv6 assembly implementation for Twofish. Implementation is tuned
for Cortex-A8. Unaligned access handling is done in assembly part.
For now, only enable this on little-endian systems as big-endian correctness
have not been tested yet.
Old (gcc-4.8) vs new (twofish-asm), Cortex-A8 (on armhf):
ECB/Stream CBC CFB OFB CTR CCM
--------------- --------------- --------------- --------------- --------------- ---------------
TWOFISH 1.23x 1.25x 1.16x 1.26x 1.16x 1.30x 1.18x 1.17x 1.23x 1.23x 1.22x 1.22x
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 8fb14e27..739a6504 100644 --- a/configure.ac +++ b/configure.ac @@ -1480,6 +1480,10 @@ if test "$found" = "1" ; then # Build with the assembly implementation GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-amd64.lo" ;; + arm*-*-*) + # Build with the assembly implementation + GCRYPT_CIPHERS="$GCRYPT_CIPHERS twofish-armv6.lo" + ;; esac fi |