Commit d741cf22 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

ppccap.c: tidy up. 

ppc64-mont.pl: missing predicate in commentary.
parent b4b48a10

crypto/bn/asm/ppc64-mont.pl

+3 −3
Original line number Diff line number Diff line
@@ -56,9 +56,9 @@ 
# 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 as low as 1/3 of expected

# one. This is why this routine should be engaged for longer key

# operations only, see crypto/ppccap.c for further details.

# so severe that shorter 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...

# MacOS X is an exception from this and doesn't require signal

# masking, and that's where above improvement coefficients were

crypto/ppccap.c

+5 −2
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ static int OPENSSL_ppccap_P = 0; 


static sigset_t all_masked;



#ifdef OPENSSL_BN_ASM_MONT

int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num)

	{

	int bn_mul_mont_fpu64(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np, const BN_ULONG *n0, int num);
@@ -44,6 +45,7 @@ int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_U 


	return bn_mul_mont_int(rp,ap,bp,np,n0,num);

	}

#endif



static sigjmp_buf ill_jmp;

static void ill_handler (int sig) { siglongjmp(ill_jmp,sig); }
@@ -55,6 +57,8 @@ void OPENSSL_cpuid_setup(void) 
	sigfillset(&all_masked);

	sigdelset(&all_masked,SIGSEGV);

	sigdelset(&all_masked,SIGILL);

	sigdelset(&all_masked,SIGBUS);

	sigdelset(&all_masked,SIGFPE);



	if ((e=getenv("OPENSSL_ppccap")))

		{
@@ -69,8 +73,7 @@ void OPENSSL_cpuid_setup(void) 


		memset(&ill_act,0,sizeof(ill_act));

		ill_act.sa_handler = ill_handler;

		sigfillset(&ill_act.sa_mask);

		sigdelset(&ill_act.sa_mask,SIGILL);

		ill_act.sa_mask    = all_masked;

		sigprocmask(SIG_SETMASK,&ill_act.sa_mask,&oset);

		sigaction (SIGILL,&ill_act,&ill_oact);

		if (sigsetjmp(ill_jmp,0) == 0)