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Fix #8372 - Error compiling AESNI in Mbed-TLS with clang on Windows

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It can successfully compile w/ or w/o the clang options -maes -mpclmul.

Signed-off-by: Sergey Markelov <sergey@solidstatenetworks.com>
This commit is contained in:
Sergey Markelov 2023-10-16 12:54:48 -07:00
parent 47e8cc9db2
commit 9902a6b752
3 changed files with 7 additions and 4 deletions
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3
ChangeLog.d/8372.txt Normal file
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@ -0,0 +1,3 @@
Features
* AES-NI is now supported in Windows builds with clang and clang-cl.
Resolves #8372.

4
include/mbedtls/aesni.h
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@ -58,7 +58,7 @@
* macros that may change in future releases.
*/
#undef MBEDTLS_AESNI_HAVE_INTRINSICS
#if defined(_MSC_VER)
#if defined(_MSC_VER) && !defined(__clang__)
/* Visual Studio supports AESNI intrinsics since VS 2008 SP1. We only support
* VS 2013 and up for other reasons anyway, so no need to check the version. */
#define MBEDTLS_AESNI_HAVE_INTRINSICS
@ -66,7 +66,7 @@
/* GCC-like compilers: currently, we only support intrinsics if the requisite
* target flag is enabled when building the library (e.g. `gcc -mpclmul -msse2`
* or `clang -maes -mpclmul`). */
#if defined(__GNUC__) && defined(__AES__) && defined(__PCLMUL__)
#if (defined(__GNUC__) || defined(__clang__)) && defined(__AES__) && defined(__PCLMUL__)
#define MBEDTLS_AESNI_HAVE_INTRINSICS
#endif

4
library/aesni.c
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@ -57,7 +57,7 @@ int mbedtls_aesni_has_support(unsigned int what)
if (!done) {
#if MBEDTLS_AESNI_HAVE_CODE == 2
static unsigned info[4] = { 0, 0, 0, 0 };
static int info[4] = { 0, 0, 0, 0 };
#if defined(_MSC_VER)
__cpuid(info, 1);
#else
@ -191,7 +191,7 @@ void mbedtls_aesni_gcm_mult(unsigned char c[16],
const unsigned char a[16],
const unsigned char b[16])
{
__m128i aa, bb, cc, dd;
__m128i aa = { 0 }, bb = { 0 }, cc, dd;
/* The inputs are in big-endian order, so byte-reverse them */
for (size_t i = 0; i < 16; i++) {