251 lines
7.4 KiB
C
251 lines
7.4 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <setjmp.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#if defined(__linux) || defined(_AIX)
|
|
# include <sys/utsname.h>
|
|
#endif
|
|
#if defined(_AIX53) /* defined even on post-5.3 */
|
|
# include <sys/systemcfg.h>
|
|
# if !defined(__power_set)
|
|
# define __power_set(a) (_system_configuration.implementation & (a))
|
|
# endif
|
|
#endif
|
|
#include <openssl/crypto.h>
|
|
#include <openssl/bn.h>
|
|
|
|
#include "ppc_arch.h"
|
|
|
|
unsigned 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);
|
|
int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
|
|
const BN_ULONG *np, const BN_ULONG *n0, int num);
|
|
|
|
if (sizeof(size_t) == 4) {
|
|
# if 1 || (defined(__APPLE__) && defined(__MACH__))
|
|
if (num >= 8 && (num & 3) == 0 && (OPENSSL_ppccap_P & PPC_FPU64))
|
|
return bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
|
|
# else
|
|
/*
|
|
* boundary of 32 was experimentally determined on Linux 2.6.22,
|
|
* might have to be adjusted on AIX...
|
|
*/
|
|
if (num >= 32 && (num & 3) == 0 && (OPENSSL_ppccap_P & PPC_FPU64)) {
|
|
sigset_t oset;
|
|
int ret;
|
|
|
|
sigprocmask(SIG_SETMASK, &all_masked, &oset);
|
|
ret = bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
|
|
sigprocmask(SIG_SETMASK, &oset, NULL);
|
|
|
|
return ret;
|
|
}
|
|
# endif
|
|
} else if ((OPENSSL_ppccap_P & PPC_FPU64))
|
|
/*
|
|
* this is a "must" on POWER6, but run-time detection is not
|
|
* implemented yet...
|
|
*/
|
|
return bn_mul_mont_fpu64(rp, ap, bp, np, n0, num);
|
|
|
|
return bn_mul_mont_int(rp, ap, bp, np, n0, num);
|
|
}
|
|
#endif
|
|
|
|
void sha256_block_p8(void *ctx, const void *inp, size_t len);
|
|
void sha256_block_ppc(void *ctx, const void *inp, size_t len);
|
|
void sha256_block_data_order(void *ctx, const void *inp, size_t len)
|
|
{
|
|
OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) :
|
|
sha256_block_ppc(ctx, inp, len);
|
|
}
|
|
|
|
void sha512_block_p8(void *ctx, const void *inp, size_t len);
|
|
void sha512_block_ppc(void *ctx, const void *inp, size_t len);
|
|
void sha512_block_data_order(void *ctx, const void *inp, size_t len)
|
|
{
|
|
OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha512_block_p8(ctx, inp, len) :
|
|
sha512_block_ppc(ctx, inp, len);
|
|
}
|
|
|
|
static sigjmp_buf ill_jmp;
|
|
static void ill_handler(int sig)
|
|
{
|
|
siglongjmp(ill_jmp, sig);
|
|
}
|
|
|
|
void OPENSSL_fpu_probe(void);
|
|
void OPENSSL_ppc64_probe(void);
|
|
void OPENSSL_altivec_probe(void);
|
|
void OPENSSL_crypto207_probe(void);
|
|
|
|
/*
|
|
* Use a weak reference to getauxval() so we can use it if it is available
|
|
* but don't break the build if it is not. Note that this is *link-time*
|
|
* feature detection, not *run-time*. In other words if we link with
|
|
* symbol present, it's expected to be present even at run-time.
|
|
*/
|
|
#if defined(__GNUC__) && __GNUC__>=2 && defined(__ELF__)
|
|
extern unsigned long getauxval(unsigned long type) __attribute__ ((weak));
|
|
#else
|
|
static unsigned long (*getauxval) (unsigned long) = NULL;
|
|
#endif
|
|
|
|
/* I wish <sys/auxv.h> was universally available */
|
|
#define HWCAP 16 /* AT_HWCAP */
|
|
#define HWCAP_PPC64 (1U << 30)
|
|
#define HWCAP_ALTIVEC (1U << 28)
|
|
#define HWCAP_FPU (1U << 27)
|
|
#define HWCAP_POWER6_EXT (1U << 9)
|
|
#define HWCAP_VSX (1U << 7)
|
|
|
|
#define HWCAP2 26 /* AT_HWCAP2 */
|
|
#define HWCAP_VEC_CRYPTO (1U << 25)
|
|
|
|
# if defined(__GNUC__) && __GNUC__>=2
|
|
__attribute__ ((constructor))
|
|
# endif
|
|
void OPENSSL_cpuid_setup(void)
|
|
{
|
|
char *e;
|
|
struct sigaction ill_oact, ill_act;
|
|
sigset_t oset;
|
|
static int trigger = 0;
|
|
|
|
if (trigger)
|
|
return;
|
|
trigger = 1;
|
|
|
|
if ((e = getenv("OPENSSL_ppccap"))) {
|
|
OPENSSL_ppccap_P = strtoul(e, NULL, 0);
|
|
return;
|
|
}
|
|
|
|
OPENSSL_ppccap_P = 0;
|
|
|
|
#if defined(_AIX)
|
|
OPENSSL_ppccap_P |= PPC_FPU;
|
|
|
|
if (sizeof(size_t) == 4) {
|
|
struct utsname uts;
|
|
# if defined(_SC_AIX_KERNEL_BITMODE)
|
|
if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64)
|
|
return;
|
|
# endif
|
|
if (uname(&uts) != 0 || atoi(uts.version) < 6)
|
|
return;
|
|
}
|
|
|
|
# if defined(__power_set)
|
|
/*
|
|
* Value used in __power_set is a single-bit 1<<n one denoting
|
|
* specific processor class. Incidentally 0xffffffff<<n can be
|
|
* used to denote specific processor and its successors.
|
|
*/
|
|
if (sizeof(size_t) == 4) {
|
|
/* In 32-bit case PPC_FPU64 is always fastest [if option] */
|
|
if (__power_set(0xffffffffU<<13)) /* POWER5 and later */
|
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
|
} else {
|
|
/* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
|
|
if (__power_set(0x1U<<14)) /* POWER6 */
|
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
|
}
|
|
|
|
if (__power_set(0xffffffffU<<14)) /* POWER6 and later */
|
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
|
|
|
if (__power_set(0xffffffffU<<16)) /* POWER8 and later */
|
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
|
|
|
return;
|
|
# endif
|
|
#endif
|
|
|
|
if (getauxval != NULL) {
|
|
unsigned long hwcap = getauxval(HWCAP);
|
|
|
|
if (hwcap & HWCAP_FPU) {
|
|
OPENSSL_ppccap_P |= PPC_FPU;
|
|
|
|
if (sizeof(size_t) == 4) {
|
|
/* In 32-bit case PPC_FPU64 is always fastest [if option] */
|
|
if (hwcap & HWCAP_PPC64)
|
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
|
} else {
|
|
/* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
|
|
if (hwcap & HWCAP_POWER6_EXT)
|
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
|
}
|
|
}
|
|
|
|
if (hwcap & HWCAP_ALTIVEC) {
|
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
|
|
|
if ((hwcap & HWCAP_VSX) && (getauxval(HWCAP2) & HWCAP_VEC_CRYPTO))
|
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
sigfillset(&all_masked);
|
|
sigdelset(&all_masked, SIGILL);
|
|
sigdelset(&all_masked, SIGTRAP);
|
|
#ifdef SIGEMT
|
|
sigdelset(&all_masked, SIGEMT);
|
|
#endif
|
|
sigdelset(&all_masked, SIGFPE);
|
|
sigdelset(&all_masked, SIGBUS);
|
|
sigdelset(&all_masked, SIGSEGV);
|
|
|
|
memset(&ill_act, 0, sizeof(ill_act));
|
|
ill_act.sa_handler = ill_handler;
|
|
ill_act.sa_mask = all_masked;
|
|
|
|
sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
|
|
sigaction(SIGILL, &ill_act, &ill_oact);
|
|
|
|
if (sigsetjmp(ill_jmp,1) == 0) {
|
|
OPENSSL_fpu_probe();
|
|
OPENSSL_ppccap_P |= PPC_FPU;
|
|
|
|
if (sizeof(size_t) == 4) {
|
|
#ifdef __linux
|
|
struct utsname uts;
|
|
if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
|
|
#endif
|
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
|
OPENSSL_ppc64_probe();
|
|
OPENSSL_ppccap_P |= PPC_FPU64;
|
|
}
|
|
} else {
|
|
/*
|
|
* Wanted code detecting POWER6 CPU and setting PPC_FPU64
|
|
*/
|
|
}
|
|
}
|
|
|
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
|
OPENSSL_altivec_probe();
|
|
OPENSSL_ppccap_P |= PPC_ALTIVEC;
|
|
if (sigsetjmp(ill_jmp, 1) == 0) {
|
|
OPENSSL_crypto207_probe();
|
|
OPENSSL_ppccap_P |= PPC_CRYPTO207;
|
|
}
|
|
}
|
|
|
|
sigaction(SIGILL, &ill_oact, NULL);
|
|
sigprocmask(SIG_SETMASK, &oset, NULL);
|
|
}
|