[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 &&
			(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;
	}

#if 0 && defined(__sun) && defined(__SVR4)
/* This code path is disabled, because of incompatibility of
 * libdevinfo.so.1 and libmalloc.so.1 (see below for details)
 */
#include <malloc.h>
#include <dlfcn.h>
#include <libdevinfo.h>
#include <sys/systeminfo.h>

typedef di_node_t (*di_init_t)(const char *,uint_t);
typedef void      (*di_fini_t)(di_node_t);
typedef char *    (*di_node_name_t)(di_node_t);
typedef int       (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t));

#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))

static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
	{
	char *name = (*di_node_name)(node);

	/* This is expected to catch all UltraSPARC flavors prior T1 */
	if (!strcmp (name,"SUNW,UltraSPARC") ||
	    !strncmp(name,"SUNW,UltraSPARC-I",17))  /* covers II,III,IV */
		{
		OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;

		/* %tick is privileged only on UltraSPARC-I/II, but not IIe */
		if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
			OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;

		return DI_WALK_TERMINATE;
		}
	/* This is expected to catch remaining UltraSPARCs, such as T1 */
	else if (!strncmp(name,"SUNW,UltraSPARC",15))
		{
		OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;

		return DI_WALK_TERMINATE;
		}

	return DI_WALK_CONTINUE;
	}

void OPENSSL_cpuid_setup(void)
	{
	void *h;
	char *e,si[256];
	static int trigger=0;

	if (trigger) return;
	trigger=1;

	if ((e=getenv("OPENSSL_sparcv9cap")))
		{
		OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
		return;
		}

	if (sysinfo(SI_MACHINE,si,sizeof(si))>0)
		{
		if (strcmp(si,"sun4v"))
			/* FPU is preferred for all CPUs, but US-T1/2 */
			OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU;
		}

	if (sysinfo(SI_ISALIST,si,sizeof(si))>0)
		{
		if (strstr(si,"+vis"))
			OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1|SPARCV9_BLK;
		if (strstr(si,"+vis2"))
			{
			OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
			OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
			return;
			}
		}
#ifdef M_KEEP
	/*
	 * Solaris libdevinfo.so.1 is effectively incomatible with
	 * libmalloc.so.1. Specifically, if application is linked with
	 * -lmalloc, it crashes upon startup with SIGSEGV in
	 * free(3LIBMALLOC) called by di_fini. Prior call to
	 * mallopt(M_KEEP,0) somehow helps... But not always...
	 */
	if ((h = dlopen(NULL,RTLD_LAZY)))
		{
		union { void *p; int (*f)(int,int); } sym;
		if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0);
		dlclose(h);
		}
#endif
	if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do
		{
		di_init_t	di_init;
		di_fini_t	di_fini;
		di_walk_node_t	di_walk_node;
		di_node_name_t	di_node_name;
		di_node_t	root_node;

		if (!DLLINK(h,di_init))		break;
		if (!DLLINK(h,di_fini))		break;
		if (!DLLINK(h,di_walk_node))	break;
		if (!DLLINK(h,di_node_name))	break;

		if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL)
			{
			(*di_walk_node)(root_node,DI_WALK_SIBFIRST,
					di_node_name,walk_nodename);
			(*di_fini)(root_node);
			}
		} while(0);

	if (h) dlclose(h);
	}

#else

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

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;
		}

	/* 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)
		{
		(void)_sparcv9_random();
		OPENSSL_sparcv9cap_P[0] |= SPARCV9_RANDOM;
		}

	/*
	 * 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
	}

#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 AP	12	#if defined(__GNUC__) && defined(__linux)
	13	__attribute__((visibility("hidden")))
	14	#endif
	15	unsigned int OPENSSL_sparcv9cap_P[2]={SPARCV9_TICK_PRIVILEGED,0};
c06b0f3d AP	16
	17	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)
	18	{
947d7827	19	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);
c06b0f3d AP	20	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);
	21	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);
	22
947d7827 AP	23	if (!(num&1) && num>=6)
947d7827 AP	24	{
68c06bf6 AP	25	if ((num&15)==0 && num<=64 &&
	26	(OPENSSL_sparcv9cap_P[1]&(CFR_MONTMUL\|CFR_MONTSQR))==
	27	(CFR_MONTMUL\|CFR_MONTSQR))
	28	{
	29	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);
	30	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);
	31	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);
	32	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);
	33	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);
	34	static const bn_mul_mont_f funcs[4] = {
	35	bn_mul_mont_t4_8, bn_mul_mont_t4_16,
	36	bn_mul_mont_t4_24, bn_mul_mont_t4_32 };
	37	bn_mul_mont_f worker = funcs[num/16-1];
	38
	39	if ((*worker)(rp,ap,bp,np,n0)) return 1;
	40	/* retry once and fall back */
	41	if ((*worker)(rp,ap,bp,np,n0)) return 1;
	42	return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
	43	}
947d7827 AP	44	if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3))
	45	return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
	46	else if (num>=8 &&
	47	(OPENSSL_sparcv9cap_P[0]&(SPARCV9_PREFER_FPU\|SPARCV9_VIS1)) ==
	48	(SPARCV9_PREFER_FPU\|SPARCV9_VIS1))
	49	return bn_mul_mont_fpu(rp,ap,bp,np,n0,num);
	50	}
	51	return bn_mul_mont_int(rp,ap,bp,np,n0,num);
c06b0f3d AP	52	}
c06b0f3d AP	53
c32fcca6	54	unsigned long _sparcv9_rdtick(void);
4b2603e4 AP	55	void _sparcv9_vis1_probe(void);
	56	unsigned long _sparcv9_vis1_instrument(void);
	57	void _sparcv9_vis2_probe(void);
	58	void _sparcv9_fmadd_probe(void);
1fda639a AP	59	unsigned long _sparcv9_rdcfr(void);
	60	void _sparcv9_vis3_probe(void);
	61	unsigned long _sparcv9_random(void);
5fabb88a	62	size_t _sparcv9_vis1_instrument_bus(unsigned int *,size_t);
947d7827	63	size_t _sparcv9_vis1_instrument_bus2(unsigned int *,size_t,size_t);
c32fcca6	64
c06b0f3d AP	65	unsigned long OPENSSL_rdtsc(void)
c06b0f3d AP	66	{
1fda639a	67	if (OPENSSL_sparcv9cap_P[0]&SPARCV9_TICK_PRIVILEGED)
c06b0f3d AP	68	#if defined(__sun) && defined(__SVR4)
	69	return gethrtime();
	70	#else
	71	return 0;
	72	#endif
	73	else
a00e414f	74	return _sparcv9_rdtick();
c06b0f3d AP	75	}
c06b0f3d AP	76
5fabb88a AP	77	size_t OPENSSL_instrument_bus(unsigned int *out,size_t cnt)
5fabb88a AP	78	{
947d7827	79	if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED\|SPARCV9_BLK)) ==
5fabb88a AP	80	SPARCV9_BLK)
	81	return _sparcv9_vis1_instrument_bus(out,cnt);
	82	else
	83	return 0;
	84	}
	85
	86	size_t OPENSSL_instrument_bus2(unsigned int *out,size_t cnt,size_t max)
	87	{
947d7827	88	if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED\|SPARCV9_BLK)) ==
5fabb88a AP	89	SPARCV9_BLK)
	90	return _sparcv9_vis1_instrument_bus2(out,cnt,max);
	91	else
	92	return 0;
	93	}
	94
4b2603e4 AP	95	#if 0 && defined(__sun) && defined(__SVR4)
	96	/* This code path is disabled, because of incompatibility of
	97	* libdevinfo.so.1 and libmalloc.so.1 (see below for details)
	98	*/
	99	#include <malloc.h>
c06b0f3d AP	100	#include <dlfcn.h>
c06b0f3d AP	101	#include <libdevinfo.h>
f3c26535	102	#include <sys/systeminfo.h>
c06b0f3d AP	103
	104	typedef di_node_t (di_init_t)(const char ,uint_t);
	105	typedef void (*di_fini_t)(di_node_t);
	106	typedef char * (*di_node_name_t)(di_node_t);
	107	typedef int (di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int ()(di_node_t,di_node_name_t));
	108
	109	#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))
	110
	111	static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
	112	{
	113	char name = (di_node_name)(node);
	114
	115	/* This is expected to catch all UltraSPARC flavors prior T1 */
	116	if (!strcmp (name,"SUNW,UltraSPARC") \|\|
7a5dbeb7	117	!strncmp(name,"SUNW,UltraSPARC-I",17)) /* covers II,III,IV */
c06b0f3d	118	{
1fda639a	119	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_PREFER_FPU\|SPARCV9_VIS1;
c06b0f3d	120
7a5dbeb7	121	/* %tick is privileged only on UltraSPARC-I/II, but not IIe */
c06b0f3d	122	if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
1fda639a	123	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
c06b0f3d AP	124
	125	return DI_WALK_TERMINATE;
	126	}
7a5dbeb7	127	/* This is expected to catch remaining UltraSPARCs, such as T1 */
c06b0f3d AP	128	else if (!strncmp(name,"SUNW,UltraSPARC",15))
c06b0f3d AP	129	{
1fda639a	130	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
7a5dbeb7 AP	131
7a5dbeb7 AP	132	return DI_WALK_TERMINATE;
c06b0f3d AP	133	}
	134
	135	return DI_WALK_CONTINUE;
	136	}
	137
	138	void OPENSSL_cpuid_setup(void)
	139	{
	140	void *h;
f3c26535	141	char *e,si[256];
a00e414f	142	static int trigger=0;
c06b0f3d	143
a00e414f AP	144	if (trigger) return;
	145	trigger=1;
	146
	147	if ((e=getenv("OPENSSL_sparcv9cap")))
c06b0f3d	148	{
1fda639a	149	OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
c06b0f3d AP	150	return;
	151	}
	152
f3c26535 AP	153	if (sysinfo(SI_MACHINE,si,sizeof(si))>0)
	154	{
	155	if (strcmp(si,"sun4v"))
	156	/* FPU is preferred for all CPUs, but US-T1/2 */
1fda639a	157	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_PREFER_FPU;
f3c26535 AP	158	}
	159
	160	if (sysinfo(SI_ISALIST,si,sizeof(si))>0)
	161	{
	162	if (strstr(si,"+vis"))
1fda639a	163	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS1\|SPARCV9_BLK;
f3c26535 AP	164	if (strstr(si,"+vis2"))
f3c26535 AP	165	{
1fda639a AP	166	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS2;
1fda639a AP	167	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
f3c26535 AP	168	return;
	169	}
	170	}
4b2603e4 AP	171	#ifdef M_KEEP
	172	/*
	173	* Solaris libdevinfo.so.1 is effectively incomatible with
	174	* libmalloc.so.1. Specifically, if application is linked with
	175	* -lmalloc, it crashes upon startup with SIGSEGV in
	176	* free(3LIBMALLOC) called by di_fini. Prior call to
	177	* mallopt(M_KEEP,0) somehow helps... But not always...
	178	*/
	179	if ((h = dlopen(NULL,RTLD_LAZY)))
	180	{
	181	union { void p; int (f)(int,int); } sym;
	182	if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0);
	183	dlclose(h);
	184	}
	185	#endif
a00e414f	186	if ((h = dlopen("libdevinfo.so.1",RTLD_LAZY))) do
c06b0f3d AP	187	{
	188	di_init_t di_init;
	189	di_fini_t di_fini;
	190	di_walk_node_t di_walk_node;
	191	di_node_name_t di_node_name;
	192	di_node_t root_node;
	193
	194	if (!DLLINK(h,di_init)) break;
	195	if (!DLLINK(h,di_fini)) break;
	196	if (!DLLINK(h,di_walk_node)) break;
	197	if (!DLLINK(h,di_node_name)) break;
	198
	199	if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL)
	200	{
	201	(*di_walk_node)(root_node,DI_WALK_SIBFIRST,
	202	di_node_name,walk_nodename);
	203	(*di_fini)(root_node);
	204	}
	205	} while(0);
	206
	207	if (h) dlclose(h);
	208	}
	209
a00e414f	210	#else
c06b0f3d	211
c32fcca6 AP	212	static sigjmp_buf common_jmp;
	213	static void common_handler(int sig) { siglongjmp(common_jmp,sig); }
	214
5d7324e4	215	void OPENSSL_cpuid_setup(void)
c06b0f3d AP	216	{
c06b0f3d AP	217	char *e;
c32fcca6 AP	218	struct sigaction common_act,ill_oact,bus_oact;
c32fcca6 AP	219	sigset_t all_masked,oset;
4b2603e4 AP	220	static int trigger=0;
	221
	222	if (trigger) return;
	223	trigger=1;
c06b0f3d	224
a00e414f	225	if ((e=getenv("OPENSSL_sparcv9cap")))
c06b0f3d	226	{
1fda639a AP	227	OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
	228	if ((e=strchr(e,':')))
	229	OPENSSL_sparcv9cap_P[1]=strtoul(e+1,NULL,0);
c06b0f3d AP	230	return;
	231	}
	232
4b2603e4	233	/* Initial value, fits UltraSPARC-I&II... */
1fda639a	234	OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU\|SPARCV9_TICK_PRIVILEGED;
c32fcca6 AP	235
	236	sigfillset(&all_masked);
	237	sigdelset(&all_masked,SIGILL);
	238	sigdelset(&all_masked,SIGTRAP);
	239	#ifdef SIGEMT
	240	sigdelset(&all_masked,SIGEMT);
	241	#endif
	242	sigdelset(&all_masked,SIGFPE);
	243	sigdelset(&all_masked,SIGBUS);
	244	sigdelset(&all_masked,SIGSEGV);
	245	sigprocmask(SIG_SETMASK,&all_masked,&oset);
	246
	247	memset(&common_act,0,sizeof(common_act));
	248	common_act.sa_handler = common_handler;
	249	common_act.sa_mask = all_masked;
	250
	251	sigaction(SIGILL,&common_act,&ill_oact);
4b2603e4 AP	252	sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */
	253
	254	if (sigsetjmp(common_jmp,1) == 0)
c32fcca6	255	{
7c5889bf	256	_sparcv9_rdtick();
1fda639a	257	OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
c32fcca6	258	}
c32fcca6	259
4b2603e4	260	if (sigsetjmp(common_jmp,1) == 0)
c32fcca6	261	{
4b2603e4	262	_sparcv9_vis1_probe();
1fda639a	263	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS1\|SPARCV9_BLK;
4b2603e4 AP	264	/* detect UltraSPARC-Tx, see sparccpud.S for details... */
4b2603e4 AP	265	if (_sparcv9_vis1_instrument() >= 12)
1fda639a	266	OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1\|SPARCV9_PREFER_FPU);
4b2603e4 AP	267	else
	268	{
	269	_sparcv9_vis2_probe();
1fda639a	270	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS2;
4b2603e4	271	}
c32fcca6	272	}
4b2603e4 AP	273
4b2603e4 AP	274	if (sigsetjmp(common_jmp,1) == 0)
c32fcca6	275	{
4b2603e4	276	_sparcv9_fmadd_probe();
1fda639a AP	277	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_FMADD;
	278	}
	279
	280	/*
	281	* VIS3 flag is tested independently from VIS1, unlike VIS2 that is,
	282	* because VIS3 defines even integer instructions.
	283	*/
	284	if (sigsetjmp(common_jmp,1) == 0)
	285	{
	286	_sparcv9_vis3_probe();
	287	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_VIS3;
	288	}
	289
	290	if (sigsetjmp(common_jmp,1) == 0)
	291	{
	292	(void)_sparcv9_random();
	293	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_RANDOM;
	294	}
	295
	296	/*
	297	* In wait for better solution _sparcv9_rdcfr is masked by
	298	* VIS3 flag, because it goes to uninterruptable endless
	299	* loop on UltraSPARC II running Solaris. Things might be
	300	* different on Linux...
	301	*/
	302	if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3) &&
	303	sigsetjmp(common_jmp,1) == 0)
	304	{
	305	OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr();
c32fcca6	306	}
4b2603e4	307
7c5889bf	308	sigaction(SIGBUS,&bus_oact,NULL);
c32fcca6 AP	309	sigaction(SIGILL,&ill_oact,NULL);
	310
	311	sigprocmask(SIG_SETMASK,&oset,NULL);
68c06bf6 AP	312
	313	if (sizeof(size_t)==8)
	314	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_64BIT_STACK;
	315	#ifdef __linux
	316	else
	317	{
	318	int ret = syscall(340);
	319
	320	if (ret>=0 && ret&1)
	321	OPENSSL_sparcv9cap_P[0] \|= SPARCV9_64BIT_STACK;
	322	}
	323	#endif
c06b0f3d AP	324	}
c06b0f3d AP	325
c06b0f3d	326	#endif