# that asynchronous signals have to be blocked upon entry to this
# subroutine. Signal masking (and complementary unmasking) has quite
# an impact on performance, naturally larger for shorter keys. It's
-# so severe that shorter key performance can be as low as 1/3 of
+# so severe that 512-bit key performance can be as low as 1/3 of
# expected one. This is why this routine can be engaged for longer
# key operations only, see crypto/ppccap.c for further details.
-# Alternative is to break dependance on upper halves on GPRs...
+# Alternative is to break dependence on upper halves on GPRs...
# MacOS X is an exception from this and doesn't require signal
# masking, and that's where above improvement coefficients were
# collected.
#else
/* boundary of 32 was experimentally determined on
Linux 2.6.22, might have to be adjusted on AIX... */
- if ((num>=32) && (OPENSSL_ppccap_P&PPC_FPU64))
+ if (num>=32 && (num&3)==0 && (OPENSSL_ppccap_P&PPC_FPU64))
{
sigset_t oset;
int ret;
static sigjmp_buf ill_jmp;
static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
+void OPENSSL_ppc64_probe(void);
+
void OPENSSL_cpuid_setup(void)
{
char *e;