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Fix runtime detection on A32/T32

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-10-08 12:26:41 +01:00
parent 27e3c87fc1
commit 851cf5a325
1 changed files with 11 additions and 0 deletions
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11
library/aesce.c
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@ -190,6 +190,16 @@ int mbedtls_aesce_has_support_impl(void)
* once, but that is harmless. * once, but that is harmless.
*/ */
if (mbedtls_aesce_has_support_result == -1) { if (mbedtls_aesce_has_support_result == -1) {
#if defined(MBEDTLS_ARCH_IS_ARM32)
unsigned long auxval = getauxval(AT_HWCAP);
unsigned long auxval2 = getauxval(AT_HWCAP2);
if (((auxval & HWCAP_NEON) == HWCAP_NEON) &&
((auxval2 & HWCAP2_AES) == HWCAP2_AES)) {
mbedtls_aesce_has_support_result = 1;
} else {
mbedtls_aesce_has_support_result = 0;
}
#else
unsigned long auxval = getauxval(AT_HWCAP); unsigned long auxval = getauxval(AT_HWCAP);
if ((auxval & (HWCAP_ASIMD | HWCAP_AES)) == if ((auxval & (HWCAP_ASIMD | HWCAP_AES)) ==
(HWCAP_ASIMD | HWCAP_AES)) { (HWCAP_ASIMD | HWCAP_AES)) {
@ -197,6 +207,7 @@ int mbedtls_aesce_has_support_impl(void)
} else { } else {
mbedtls_aesce_has_support_result = 0; mbedtls_aesce_has_support_result = 0;
} }
#endif
} }
return mbedtls_aesce_has_support_result; return mbedtls_aesce_has_support_result;
} }