[thirdparty/openssl.git] / crypto / sparcv9cap.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include <sys/time.h>
#include <unistd.h>
#include <openssl/bn.h>

#include "sparc_arch.h"

#if defined(__GNUC__) && defined(__linux)
__attribute__ ((visibility("hidden")))
#endif
unsigned int OPENSSL_sparcv9cap_P[2] = { SPARCV9_TICK_PRIVILEGED, 0 };

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_vis3(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_fpu(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 (!(num & 1) && num >= 6) {
        if ((num & 15) == 0 && num <= 64 &&
            (OPENSSL_sparcv9cap_P[1] & (CFR_MONTMUL | CFR_MONTSQR)) ==
            (CFR_MONTMUL | CFR_MONTSQR)) {
            typedef int (*bn_mul_mont_f) (BN_ULONG *rp, const BN_ULONG *ap,
                                          const BN_ULONG *bp,
                                          const BN_ULONG *np,
                                          const BN_ULONG *n0);
            int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap,
                                 const BN_ULONG *bp, const BN_ULONG *np,
                                 const BN_ULONG *n0);
            int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap,
                                  const BN_ULONG *bp, const BN_ULONG *np,
                                  const BN_ULONG *n0);
            int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap,
                                  const BN_ULONG *bp, const BN_ULONG *np,
                                  const BN_ULONG *n0);
            int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap,
                                  const BN_ULONG *bp, const BN_ULONG *np,
                                  const BN_ULONG *n0);
            static const bn_mul_mont_f funcs[4] = {
                bn_mul_mont_t4_8, bn_mul_mont_t4_16,
                bn_mul_mont_t4_24, bn_mul_mont_t4_32
            };
            bn_mul_mont_f worker = funcs[num / 16 - 1];

            if ((*worker) (rp, ap, bp, np, n0))
                return 1;
            /* retry once and fall back */
            if ((*worker) (rp, ap, bp, np, n0))
                return 1;
            return bn_mul_mont_vis3(rp, ap, bp, np, n0, num);
        }
        if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3))
            return bn_mul_mont_vis3(rp, ap, bp, np, n0, num);
        else if (num >= 8 &&
                 /*
                  * bn_mul_mont_fpu doesn't use FMADD, we just use the
                  * flag to detect when FPU path is preferable in cases
                  * when current heuristics is unreliable. [it works
                  * out because FMADD-capable processors where FPU
                  * code path is undesirable are also VIS3-capable and
                  * VIS3 code path takes precedence.]
                  */
                 ( (OPENSSL_sparcv9cap_P[0] & SPARCV9_FMADD) ||
                   (OPENSSL_sparcv9cap_P[0] &
                    (SPARCV9_PREFER_FPU | SPARCV9_VIS1)) ==
                   (SPARCV9_PREFER_FPU | SPARCV9_VIS1) ))
            return bn_mul_mont_fpu(rp, ap, bp, np, n0, num);
    }
    return bn_mul_mont_int(rp, ap, bp, np, n0, num);
}

unsigned long _sparcv9_rdtick(void);
void _sparcv9_vis1_probe(void);
unsigned long _sparcv9_vis1_instrument(void);
void _sparcv9_vis2_probe(void);
void _sparcv9_fmadd_probe(void);
unsigned long _sparcv9_rdcfr(void);
void _sparcv9_vis3_probe(void);
unsigned long _sparcv9_random(void);
size_t _sparcv9_vis1_instrument_bus(unsigned int *, size_t);
size_t _sparcv9_vis1_instrument_bus2(unsigned int *, size_t, size_t);

unsigned long OPENSSL_rdtsc(void)
{
    if (OPENSSL_sparcv9cap_P[0] & SPARCV9_TICK_PRIVILEGED)
#if defined(__sun) && defined(__SVR4)
        return gethrtime();
#else
        return 0;
#endif
    else
        return _sparcv9_rdtick();
}

size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
{
    if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED | SPARCV9_BLK)) ==
        SPARCV9_BLK)
        return _sparcv9_vis1_instrument_bus(out, cnt);
    else
        return 0;
}

size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
{
    if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED | SPARCV9_BLK)) ==
        SPARCV9_BLK)
        return _sparcv9_vis1_instrument_bus2(out, cnt, max);
    else
        return 0;
}

static sigjmp_buf common_jmp;
static void common_handler(int sig)
{
    siglongjmp(common_jmp, sig);
}

#if defined(__sun) && defined(__SVR4)
# if defined(__GNUC__) && __GNUC__>=2
extern unsigned int getisax(unsigned int vec[], unsigned int sz) __attribute__ ((weak));
# elif defined(__SUNPRO_C)
#pragma weak getisax
extern unsigned int getisax(unsigned int vec[], unsigned int sz);
# else
static unsigned int (*getisax) (unsigned int vec[], unsigned int sz) = NULL;
# endif
#endif

void OPENSSL_cpuid_setup(void)
{
    char *e;
    struct sigaction common_act, ill_oact, bus_oact;
    sigset_t all_masked, oset;
    static int trigger = 0;

    if (trigger)
        return;
    trigger = 1;

    if ((e = getenv("OPENSSL_sparcv9cap"))) {
        OPENSSL_sparcv9cap_P[0] = strtoul(e, NULL, 0);
        if ((e = strchr(e, ':')))
            OPENSSL_sparcv9cap_P[1] = strtoul(e + 1, NULL, 0);
        return;
    }

#if defined(__sun) && defined(__SVR4)
    if (getisax != NULL) {
        unsigned int vec[1];

        if (getisax (vec,1)) {
            if (vec[0]&0x00020) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1;
            if (vec[0]&0x00040) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
            if (vec[0]&0x00080) OPENSSL_sparcv9cap_P[0] |= SPARCV9_BLK;
            if (vec[0]&0x00100) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD;
            if (vec[0]&0x00400) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3;
            if (vec[0]&0x01000) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FJHPCACE;
            if (vec[0]&0x02000) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FJDESX;
            if (vec[0]&0x08000) OPENSSL_sparcv9cap_P[0] |= SPARCV9_IMA;
            if (vec[0]&0x10000) OPENSSL_sparcv9cap_P[0] |= SPARCV9_FJAESX;
            if (vec[1]&0x00008) OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS4;

            /* reconstruct %cfr copy */
            OPENSSL_sparcv9cap_P[1] = (vec[0]>>17)&0x3ff;
            OPENSSL_sparcv9cap_P[1] |= (OPENSSL_sparcv9cap_P[1]&CFR_MONTMUL)<<1;
            if (vec[0]&0x20000000) OPENSSL_sparcv9cap_P[1] |= CFR_CRC32C;
            if (vec[1]&0x00000020) OPENSSL_sparcv9cap_P[1] |= CFR_XMPMUL;
            if (vec[1]&0x00000040)
                OPENSSL_sparcv9cap_P[1] |= CFR_XMONTMUL|CFR_XMONTSQR;

            /* Some heuristics */
            /* all known VIS2-capable CPUs have unprivileged tick counter */
            if (OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS2)
                OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;

            OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU;

            /* detect UltraSPARC-Tx, see sparccpud.S for details... */
            if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS1) &&
                _sparcv9_vis1_instrument() >= 12)
                OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU);
        }

        if (sizeof(size_t) == 8)
            OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;

        return;
    }
#endif

    /* Initial value, fits UltraSPARC-I&II... */
    OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU | SPARCV9_TICK_PRIVILEGED;

    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);
    sigprocmask(SIG_SETMASK, &all_masked, &oset);

    memset(&common_act, 0, sizeof(common_act));
    common_act.sa_handler = common_handler;
    common_act.sa_mask = all_masked;

    sigaction(SIGILL, &common_act, &ill_oact);
    sigaction(SIGBUS, &common_act, &bus_oact); /* T1 fails 16-bit ldda [on
                                                * Linux] */

    if (sigsetjmp(common_jmp, 1) == 0) {
        _sparcv9_rdtick();
        OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
    }

    if (sigsetjmp(common_jmp, 1) == 0) {
        _sparcv9_vis1_probe();
        OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1 | SPARCV9_BLK;
        /* detect UltraSPARC-Tx, see sparccpud.S for details... */
        if (_sparcv9_vis1_instrument() >= 12)
            OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 | SPARCV9_PREFER_FPU);
        else {
            _sparcv9_vis2_probe();
            OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
        }
    }

    if (sigsetjmp(common_jmp, 1) == 0) {
        _sparcv9_fmadd_probe();
        OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD;
    }

    /*
     * VIS3 flag is tested independently from VIS1, unlike VIS2 that is,
     * because VIS3 defines even integer instructions.
     */
    if (sigsetjmp(common_jmp, 1) == 0) {
        _sparcv9_vis3_probe();
        OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3;
    }

    if (sigsetjmp(common_jmp, 1) == 0) {
        _sparcv9_fjaesx_probe();
        OPENSSL_sparcv9cap_P[0] |= SPARCV9_FJAESX;
    }

    /*
     * In wait for better solution _sparcv9_rdcfr is masked by
     * VIS3 flag, because it goes to uninterruptable endless
     * loop on UltraSPARC II running Solaris. Things might be
     * different on Linux...
     */
    if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) &&
        sigsetjmp(common_jmp, 1) == 0) {
        OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr();
    }

    sigaction(SIGBUS, &bus_oact, NULL);
    sigaction(SIGILL, &ill_oact, NULL);

    sigprocmask(SIG_SETMASK, &oset, NULL);

    if (sizeof(size_t) == 8)
        OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
# ifdef __linux
    else {
        int ret = syscall(340);

        if (ret >= 0 && ret & 1)
            OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
    }
# endif
}
Commit	Line	Data
c06b0f3d AP	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <string.h>
c32fcca6 AP	4	#include <setjmp.h>
c32fcca6 AP	5	#include <signal.h>
c06b0f3d	6	#include <sys/time.h>
68c06bf6	7	#include <unistd.h>
c06b0f3d AP	8	#include <openssl/bn.h>
c06b0f3d AP	9
1fda639a	10	#include "sparc_arch.h"
c32fcca6	11
1fda639a	12	#if defined(__GNUC__) && defined(__linux)
0f113f3e	13	__attribute__ ((visibility("hidden")))
1fda639a	14	#endif
0f113f3e MC	15	unsigned int OPENSSL_sparcv9cap_P[2] = { SPARCV9_TICK_PRIVILEGED, 0 };
	16
	17	int bn_mul_mont(BN_ULONG rp, const BN_ULONG ap, const BN_ULONG *bp,
	18	const BN_ULONG np, const BN_ULONG n0, int num)
	19	{
	20	int bn_mul_mont_vis3(BN_ULONG rp, const BN_ULONG ap, const BN_ULONG *bp,
	21	const BN_ULONG np, const BN_ULONG n0, int num);
	22	int bn_mul_mont_fpu(BN_ULONG rp, const BN_ULONG ap, const BN_ULONG *bp,
	23	const BN_ULONG np, const BN_ULONG n0, int num);
	24	int bn_mul_mont_int(BN_ULONG rp, const BN_ULONG ap, const BN_ULONG *bp,
	25	const BN_ULONG np, const BN_ULONG n0, int num);
	26
	27	if (!(num & 1) && num >= 6) {
	28	if ((num & 15) == 0 && num <= 64 &&
	29	(OPENSSL_sparcv9cap_P[1] & (CFR_MONTMUL \| CFR_MONTSQR)) ==
	30	(CFR_MONTMUL \| CFR_MONTSQR)) {
	31	typedef int (bn_mul_mont_f) (BN_ULONG rp, const BN_ULONG *ap,
	32	const BN_ULONG *bp,
	33	const BN_ULONG *np,
	34	const BN_ULONG *n0);
	35	int bn_mul_mont_t4_8(BN_ULONG rp, const BN_ULONG ap,
	36	const BN_ULONG bp, const BN_ULONG np,
	37	const BN_ULONG *n0);
	38	int bn_mul_mont_t4_16(BN_ULONG rp, const BN_ULONG ap,
	39	const BN_ULONG bp, const BN_ULONG np,
	40	const BN_ULONG *n0);
	41	int bn_mul_mont_t4_24(BN_ULONG rp, const BN_ULONG ap,
	42	const BN_ULONG bp, const BN_ULONG np,
	43	const BN_ULONG *n0);
	44	int bn_mul_mont_t4_32(BN_ULONG rp, const BN_ULONG ap,
	45	const BN_ULONG bp, const BN_ULONG np,
	46	const BN_ULONG *n0);
	47	static const bn_mul_mont_f funcs[4] = {
	48	bn_mul_mont_t4_8, bn_mul_mont_t4_16,
	49	bn_mul_mont_t4_24, bn_mul_mont_t4_32
	50	};
	51	bn_mul_mont_f worker = funcs[num / 16 - 1];
	52
	53	if ((*worker) (rp, ap, bp, np, n0))
	54	return 1;
	55	/* retry once and fall back */
	56	if ((*worker) (rp, ap, bp, np, n0))
	57	return 1;
	58	return bn_mul_mont_vis3(rp, ap, bp, np, n0, num);
	59	}
	60	if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3))
	61	return bn_mul_mont_vis3(rp, ap, bp, np, n0, num);
	62	else if (num >= 8 &&
33ea23dc AP	63	/*
	64	* bn_mul_mont_fpu doesn't use FMADD, we just use the
	65	* flag to detect when FPU path is preferable in cases
	66	* when current heuristics is unreliable. [it works
	67	* out because FMADD-capable processors where FPU
	68	* code path is undesirable are also VIS3-capable and
	69	* VIS3 code path takes precedence.]
	70	*/
	71	( (OPENSSL_sparcv9cap_P[0] & SPARCV9_FMADD) \|\|
	72	(OPENSSL_sparcv9cap_P[0] &
	73	(SPARCV9_PREFER_FPU \| SPARCV9_VIS1)) ==
	74	(SPARCV9_PREFER_FPU \| SPARCV9_VIS1) ))
0f113f3e MC	75	return bn_mul_mont_fpu(rp, ap, bp, np, n0, num);
	76	}
	77	return bn_mul_mont_int(rp, ap, bp, np, n0, num);
	78	}
	79
	80	unsigned long _sparcv9_rdtick(void);
	81	void _sparcv9_vis1_probe(void);
	82	unsigned long _sparcv9_vis1_instrument(void);
	83	void _sparcv9_vis2_probe(void);
	84	void _sparcv9_fmadd_probe(void);
	85	unsigned long _sparcv9_rdcfr(void);
	86	void _sparcv9_vis3_probe(void);
	87	unsigned long _sparcv9_random(void);
	88	size_t _sparcv9_vis1_instrument_bus(unsigned int *, size_t);
	89	size_t _sparcv9_vis1_instrument_bus2(unsigned int *, size_t, size_t);
c32fcca6	90
c06b0f3d	91	unsigned long OPENSSL_rdtsc(void)
0f113f3e MC	92	{
0f113f3e MC	93	if (OPENSSL_sparcv9cap_P[0] & SPARCV9_TICK_PRIVILEGED)
c06b0f3d	94	#if defined(__sun) && defined(__SVR4)
0f113f3e	95	return gethrtime();
c06b0f3d	96	#else
0f113f3e	97	return 0;
c06b0f3d	98	#endif
0f113f3e MC	99	else
	100	return _sparcv9_rdtick();
	101	}
	102
	103	size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
	104	{
	105	if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED \| SPARCV9_BLK)) ==
	106	SPARCV9_BLK)
	107	return _sparcv9_vis1_instrument_bus(out, cnt);
	108	else
	109	return 0;
	110	}
	111
	112	size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
	113	{
	114	if ((OPENSSL_sparcv9cap_P[0] & (SPARCV9_TICK_PRIVILEGED \| SPARCV9_BLK)) ==
	115	SPARCV9_BLK)
	116	return _sparcv9_vis1_instrument_bus2(out, cnt, max);
	117	else
	118	return 0;
	119	}
5fabb88a	120
c32fcca6	121	static sigjmp_buf common_jmp;
0f113f3e MC	122	static void common_handler(int sig)
	123	{
	124	siglongjmp(common_jmp, sig);
	125	}
c32fcca6	126
2238e0e4 AP	127	#if defined(__sun) && defined(__SVR4)
	128	# if defined(__GNUC__) && __GNUC__>=2
	129	extern unsigned int getisax(unsigned int vec[], unsigned int sz) __attribute__ ((weak));
	130	# elif defined(__SUNPRO_C)
	131	#pragma weak getisax
	132	extern unsigned int getisax(unsigned int vec[], unsigned int sz);
	133	# else
	134	static unsigned int (*getisax) (unsigned int vec[], unsigned int sz) = NULL;
	135	# endif
	136	#endif
	137
5d7324e4	138	void OPENSSL_cpuid_setup(void)
0f113f3e MC	139	{
	140	char *e;
	141	struct sigaction common_act, ill_oact, bus_oact;
	142	sigset_t all_masked, oset;
	143	static int trigger = 0;
	144
	145	if (trigger)
	146	return;
	147	trigger = 1;
	148
	149	if ((e = getenv("OPENSSL_sparcv9cap"))) {
	150	OPENSSL_sparcv9cap_P[0] = strtoul(e, NULL, 0);
	151	if ((e = strchr(e, ':')))
	152	OPENSSL_sparcv9cap_P[1] = strtoul(e + 1, NULL, 0);
	153	return;
	154	}
	155
2238e0e4 AP	156	#if defined(__sun) && defined(__SVR4)
	157	if (getisax != NULL) {
	158	unsigned int vec[1];
	159
	160	if (getisax (vec,1)) {
299ccadc AP	161	if (vec[0]&0x00020) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS1;
	162	if (vec[0]&0x00040) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS2;
	163	if (vec[0]&0x00080) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_BLK;
	164	if (vec[0]&0x00100) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FMADD;
	165	if (vec[0]&0x00400) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS3;
	166	if (vec[0]&0x01000) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FJHPCACE;
	167	if (vec[0]&0x02000) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FJDESX;
	168	if (vec[0]&0x08000) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_IMA;
4400f6c6	169	if (vec[0]&0x10000) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FJAESX;
299ccadc	170	if (vec[1]&0x00008) OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS4;
2238e0e4 AP	171
	172	/* reconstruct %cfr copy */
	173	OPENSSL_sparcv9cap_P[1] = (vec[0]>>17)&0x3ff;
	174	OPENSSL_sparcv9cap_P[1] \|= (OPENSSL_sparcv9cap_P[1]&CFR_MONTMUL)<<1;
	175	if (vec[0]&0x20000000) OPENSSL_sparcv9cap_P[1] \|= CFR_CRC32C;
299ccadc AP	176	if (vec[1]&0x00000020) OPENSSL_sparcv9cap_P[1] \|= CFR_XMPMUL;
	177	if (vec[1]&0x00000040)
	178	OPENSSL_sparcv9cap_P[1] \|= CFR_XMONTMUL\|CFR_XMONTSQR;
2238e0e4 AP	179
	180	/* Some heuristics */
	181	/* all known VIS2-capable CPUs have unprivileged tick counter */
	182	if (OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS2)
	183	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
	184
	185	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_PREFER_FPU;
	186
	187	/* detect UltraSPARC-Tx, see sparccpud.S for details... */
	188	if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS1) &&
	189	_sparcv9_vis1_instrument() >= 12)
	190	OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 \| SPARCV9_PREFER_FPU);
	191	}
	192
	193	if (sizeof(size_t) == 8)
	194	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_64BIT_STACK;
	195
	196	return;
	197	}
	198	#endif
	199
0f113f3e MC	200	/* Initial value, fits UltraSPARC-I&II... */
	201	OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU \| SPARCV9_TICK_PRIVILEGED;
	202
	203	sigfillset(&all_masked);
	204	sigdelset(&all_masked, SIGILL);
	205	sigdelset(&all_masked, SIGTRAP);
	206	# ifdef SIGEMT
	207	sigdelset(&all_masked, SIGEMT);
	208	# endif
	209	sigdelset(&all_masked, SIGFPE);
	210	sigdelset(&all_masked, SIGBUS);
	211	sigdelset(&all_masked, SIGSEGV);
	212	sigprocmask(SIG_SETMASK, &all_masked, &oset);
	213
	214	memset(&common_act, 0, sizeof(common_act));
	215	common_act.sa_handler = common_handler;
	216	common_act.sa_mask = all_masked;
	217
	218	sigaction(SIGILL, &common_act, &ill_oact);
	219	sigaction(SIGBUS, &common_act, &bus_oact); /* T1 fails 16-bit ldda [on
	220	* Linux] */
	221
	222	if (sigsetjmp(common_jmp, 1) == 0) {
	223	_sparcv9_rdtick();
	224	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
	225	}
	226
	227	if (sigsetjmp(common_jmp, 1) == 0) {
	228	_sparcv9_vis1_probe();
	229	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS1 \| SPARCV9_BLK;
	230	/* detect UltraSPARC-Tx, see sparccpud.S for details... */
	231	if (_sparcv9_vis1_instrument() >= 12)
	232	OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1 \| SPARCV9_PREFER_FPU);
	233	else {
	234	_sparcv9_vis2_probe();
	235	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS2;
	236	}
	237	}
	238
	239	if (sigsetjmp(common_jmp, 1) == 0) {
	240	_sparcv9_fmadd_probe();
	241	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FMADD;
	242	}
	243
	244	/*
	245	* VIS3 flag is tested independently from VIS1, unlike VIS2 that is,
	246	* because VIS3 defines even integer instructions.
	247	*/
	248	if (sigsetjmp(common_jmp, 1) == 0) {
	249	_sparcv9_vis3_probe();
	250	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS3;
	251	}
0f113f3e	252
4400f6c6 AP	253	if (sigsetjmp(common_jmp, 1) == 0) {
	254	_sparcv9_fjaesx_probe();
	255	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FJAESX;
	256	}
	257
0f113f3e MC	258	/*
	259	* In wait for better solution _sparcv9_rdcfr is masked by
	260	* VIS3 flag, because it goes to uninterruptable endless
	261	* loop on UltraSPARC II running Solaris. Things might be
	262	* different on Linux...
	263	*/
	264	if ((OPENSSL_sparcv9cap_P[0] & SPARCV9_VIS3) &&
	265	sigsetjmp(common_jmp, 1) == 0) {
	266	OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr();
	267	}
	268
	269	sigaction(SIGBUS, &bus_oact, NULL);
	270	sigaction(SIGILL, &ill_oact, NULL);
	271
	272	sigprocmask(SIG_SETMASK, &oset, NULL);
	273
	274	if (sizeof(size_t) == 8)
	275	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_64BIT_STACK;
	276	# ifdef __linux
	277	else {
	278	int ret = syscall(340);
	279
	280	if (ret >= 0 && ret & 1)
	281	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_64BIT_STACK;
	282	}
	283	# endif
	284	}