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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2015-05-03 17:06:56 +0300 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2015-05-14 10:18:06 +0300 |
| commit | c46b015bedba7ce0db68929bd33a86a54ab3d919 (patch) | |
| tree | 412ff5dd1f1a421331684d5f9b6bf51f3c38d99c /cipher/arcfour.c | |
| parent | ee8fc4edcb3466b03246c8720b90731bf274ff1d (diff) | |
| download | libgcrypt-c46b015bedba7ce0db68929bd33a86a54ab3d919.tar.gz | |
Enable AMD64 arcfour implementation on WIN64
* cipher/arcfour-amd64.S: Enable when
HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined.
(ELF): New macro to mask lines with ELF specific commands.
* cipher/arcfour.c (USE_AMD64_ASM): Enable when
HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS defined.
(do_encrypt, do_decrypt) [HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS]: Use
assembly block to call AMD64 assembly function.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'cipher/arcfour.c')
| -rw-r--r-- | cipher/arcfour.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/cipher/arcfour.c b/cipher/arcfour.c index 27537bfd..44e8ef46 100644 --- a/cipher/arcfour.c +++ b/cipher/arcfour.c @@ -33,7 +33,8 @@ /* USE_AMD64_ASM indicates whether to use AMD64 assembly code. */ #undef USE_AMD64_ASM -#if defined(__x86_64__) && defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) +#if defined(__x86_64__) && (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \ + defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) # define USE_AMD64_ASM 1 #endif @@ -53,7 +54,21 @@ static void encrypt_stream (void *context, byte *outbuf, const byte *inbuf, size_t length) { +#ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS + const void *fn = _gcry_arcfour_amd64; + /* Call SystemV ABI function without storing non-volatile XMM registers, + * as target function does not use vector instruction sets. */ + asm volatile ("callq *%0\n\t" + : "+a" (fn), + "+D" (context), + "+S" (length), + "+d" (inbuf), + "+c" (outbuf) + : + : "cc", "memory", "r8", "r9", "r10", "r11"); +#else _gcry_arcfour_amd64 (context, length, inbuf, outbuf ); +#endif } #else /*!USE_AMD64_ASM*/ |