1*1dcdf01fSchristos /*
2*1dcdf01fSchristos * Copyright 2009-2021 The OpenSSL Project Authors. All Rights Reserved.
3*1dcdf01fSchristos *
4*1dcdf01fSchristos * Licensed under the OpenSSL license (the "License"). You may not use
5*1dcdf01fSchristos * this file except in compliance with the License. You can obtain a copy
6*1dcdf01fSchristos * in the file LICENSE in the source distribution or at
7*1dcdf01fSchristos * https://www.openssl.org/source/license.html
8*1dcdf01fSchristos */
9*1dcdf01fSchristos
1060662d10Schristos #include <stdio.h>
1160662d10Schristos #include <stdlib.h>
1260662d10Schristos #include <string.h>
1360662d10Schristos #include <setjmp.h>
1460662d10Schristos #include <signal.h>
1560662d10Schristos #include <unistd.h>
1660662d10Schristos #if defined(__linux) || defined(_AIX)
1760662d10Schristos # include <sys/utsname.h>
1860662d10Schristos #endif
19*1dcdf01fSchristos #if defined(_AIX53) /* defined even on post-5.3 */
20*1dcdf01fSchristos # include <sys/systemcfg.h>
21*1dcdf01fSchristos # if !defined(__power_set)
22*1dcdf01fSchristos # define __power_set(a) (_system_configuration.implementation & (a))
23*1dcdf01fSchristos # endif
24*1dcdf01fSchristos #endif
25*1dcdf01fSchristos #if defined(__APPLE__) && defined(__MACH__)
26*1dcdf01fSchristos # include <sys/types.h>
27*1dcdf01fSchristos # include <sys/sysctl.h>
28*1dcdf01fSchristos #endif
29*1dcdf01fSchristos #if defined(__NetBSD__)
30*1dcdf01fSchristos # include <sys/param.h>
31*1dcdf01fSchristos # include <sys/sysctl.h>
32*1dcdf01fSchristos #endif
3360662d10Schristos #include <openssl/crypto.h>
3460662d10Schristos #include <openssl/bn.h>
35*1dcdf01fSchristos #include <internal/cryptlib.h>
36*1dcdf01fSchristos #include <crypto/chacha.h>
37*1dcdf01fSchristos #include "bn/bn_local.h"
3860662d10Schristos
3960662d10Schristos #include "ppc_arch.h"
4060662d10Schristos
4160662d10Schristos unsigned int OPENSSL_ppccap_P = 0;
4260662d10Schristos
4360662d10Schristos static sigset_t all_masked;
4460662d10Schristos
4560662d10Schristos #ifdef OPENSSL_BN_ASM_MONT
bn_mul_mont(BN_ULONG * rp,const BN_ULONG * ap,const BN_ULONG * bp,const BN_ULONG * np,const BN_ULONG * n0,int num)4660662d10Schristos int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
4760662d10Schristos const BN_ULONG *np, const BN_ULONG *n0, int num)
4860662d10Schristos {
4960662d10Schristos int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
5060662d10Schristos const BN_ULONG *np, const BN_ULONG *n0, int num);
51*1dcdf01fSchristos int bn_mul4x_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp,
52*1dcdf01fSchristos const BN_ULONG *np, const BN_ULONG *n0, int num);
5360662d10Schristos
54*1dcdf01fSchristos if (num < 4)
55*1dcdf01fSchristos return 0;
56*1dcdf01fSchristos
57*1dcdf01fSchristos if ((num & 3) == 0)
58*1dcdf01fSchristos return bn_mul4x_mont_int(rp, ap, bp, np, n0, num);
59*1dcdf01fSchristos
6060662d10Schristos /*
61*1dcdf01fSchristos * There used to be [optional] call to bn_mul_mont_fpu64 here,
62*1dcdf01fSchristos * but above subroutine is faster on contemporary processors.
63*1dcdf01fSchristos * Formulation means that there might be old processors where
64*1dcdf01fSchristos * FPU code path would be faster, POWER6 perhaps, but there was
65*1dcdf01fSchristos * no opportunity to figure it out...
6660662d10Schristos */
6760662d10Schristos
6860662d10Schristos return bn_mul_mont_int(rp, ap, bp, np, n0, num);
6960662d10Schristos }
7060662d10Schristos #endif
7160662d10Schristos
7260662d10Schristos #ifdef DONT_USE_SHA256_FROM_LIBC
7360662d10Schristos void sha256_block_p8(void *ctx, const void *inp, size_t len);
7460662d10Schristos void sha256_block_ppc(void *ctx, const void *inp, size_t len);
75*1dcdf01fSchristos void sha256_block_data_order(void *ctx, const void *inp, size_t len);
sha256_block_data_order(void * ctx,const void * inp,size_t len)7660662d10Schristos void sha256_block_data_order(void *ctx, const void *inp, size_t len)
7760662d10Schristos {
7860662d10Schristos OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha256_block_p8(ctx, inp, len) :
7960662d10Schristos sha256_block_ppc(ctx, inp, len);
8060662d10Schristos }
8160662d10Schristos #endif
8260662d10Schristos
8360662d10Schristos #ifdef DONT_USE_SHA512_FROM_LIBC
8460662d10Schristos void sha512_block_p8(void *ctx, const void *inp, size_t len);
8560662d10Schristos void sha512_block_ppc(void *ctx, const void *inp, size_t len);
86*1dcdf01fSchristos void sha512_block_data_order(void *ctx, const void *inp, size_t len);
sha512_block_data_order(void * ctx,const void * inp,size_t len)8760662d10Schristos void sha512_block_data_order(void *ctx, const void *inp, size_t len)
8860662d10Schristos {
8960662d10Schristos OPENSSL_ppccap_P & PPC_CRYPTO207 ? sha512_block_p8(ctx, inp, len) :
9060662d10Schristos sha512_block_ppc(ctx, inp, len);
9160662d10Schristos }
9260662d10Schristos #endif
9360662d10Schristos
94*1dcdf01fSchristos #ifndef OPENSSL_NO_CHACHA
95*1dcdf01fSchristos void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp,
96*1dcdf01fSchristos size_t len, const unsigned int key[8],
97*1dcdf01fSchristos const unsigned int counter[4]);
98*1dcdf01fSchristos void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp,
99*1dcdf01fSchristos size_t len, const unsigned int key[8],
100*1dcdf01fSchristos const unsigned int counter[4]);
101*1dcdf01fSchristos void ChaCha20_ctr32_vsx(unsigned char *out, const unsigned char *inp,
102*1dcdf01fSchristos size_t len, const unsigned int key[8],
103*1dcdf01fSchristos const unsigned int counter[4]);
ChaCha20_ctr32(unsigned char * out,const unsigned char * inp,size_t len,const unsigned int key[8],const unsigned int counter[4])104*1dcdf01fSchristos void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
105*1dcdf01fSchristos size_t len, const unsigned int key[8],
106*1dcdf01fSchristos const unsigned int counter[4])
107*1dcdf01fSchristos {
108*1dcdf01fSchristos OPENSSL_ppccap_P & PPC_CRYPTO207
109*1dcdf01fSchristos ? ChaCha20_ctr32_vsx(out, inp, len, key, counter)
110*1dcdf01fSchristos : OPENSSL_ppccap_P & PPC_ALTIVEC
111*1dcdf01fSchristos ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
112*1dcdf01fSchristos : ChaCha20_ctr32_int(out, inp, len, key, counter);
113*1dcdf01fSchristos }
114*1dcdf01fSchristos #endif
115*1dcdf01fSchristos
116*1dcdf01fSchristos #ifndef OPENSSL_NO_POLY1305
117*1dcdf01fSchristos void poly1305_init_int(void *ctx, const unsigned char key[16]);
118*1dcdf01fSchristos void poly1305_blocks(void *ctx, const unsigned char *inp, size_t len,
119*1dcdf01fSchristos unsigned int padbit);
120*1dcdf01fSchristos void poly1305_emit(void *ctx, unsigned char mac[16],
121*1dcdf01fSchristos const unsigned int nonce[4]);
122*1dcdf01fSchristos void poly1305_init_fpu(void *ctx, const unsigned char key[16]);
123*1dcdf01fSchristos void poly1305_blocks_fpu(void *ctx, const unsigned char *inp, size_t len,
124*1dcdf01fSchristos unsigned int padbit);
125*1dcdf01fSchristos void poly1305_emit_fpu(void *ctx, unsigned char mac[16],
126*1dcdf01fSchristos const unsigned int nonce[4]);
127*1dcdf01fSchristos int poly1305_init(void *ctx, const unsigned char key[16], void *func[2]);
poly1305_init(void * ctx,const unsigned char key[16],void * func[2])128*1dcdf01fSchristos int poly1305_init(void *ctx, const unsigned char key[16], void *func[2])
129*1dcdf01fSchristos {
130*1dcdf01fSchristos if (sizeof(size_t) == 4 && (OPENSSL_ppccap_P & PPC_FPU)) {
131*1dcdf01fSchristos poly1305_init_fpu(ctx, key);
132*1dcdf01fSchristos func[0] = (void*)(uintptr_t)poly1305_blocks_fpu;
133*1dcdf01fSchristos func[1] = (void*)(uintptr_t)poly1305_emit_fpu;
134*1dcdf01fSchristos } else {
135*1dcdf01fSchristos poly1305_init_int(ctx, key);
136*1dcdf01fSchristos func[0] = (void*)(uintptr_t)poly1305_blocks;
137*1dcdf01fSchristos func[1] = (void*)(uintptr_t)poly1305_emit;
138*1dcdf01fSchristos }
139*1dcdf01fSchristos return 1;
140*1dcdf01fSchristos }
141*1dcdf01fSchristos #endif
142*1dcdf01fSchristos
143*1dcdf01fSchristos #ifdef ECP_NISTZ256_ASM
144*1dcdf01fSchristos void ecp_nistz256_mul_mont(unsigned long res[4], const unsigned long a[4],
145*1dcdf01fSchristos const unsigned long b[4]);
146*1dcdf01fSchristos
147*1dcdf01fSchristos void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4]);
ecp_nistz256_to_mont(unsigned long res[4],const unsigned long in[4])148*1dcdf01fSchristos void ecp_nistz256_to_mont(unsigned long res[4], const unsigned long in[4])
149*1dcdf01fSchristos {
150*1dcdf01fSchristos static const unsigned long RR[] = { 0x0000000000000003U,
151*1dcdf01fSchristos 0xfffffffbffffffffU,
152*1dcdf01fSchristos 0xfffffffffffffffeU,
153*1dcdf01fSchristos 0x00000004fffffffdU };
154*1dcdf01fSchristos
155*1dcdf01fSchristos ecp_nistz256_mul_mont(res, in, RR);
156*1dcdf01fSchristos }
157*1dcdf01fSchristos
158*1dcdf01fSchristos void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4]);
ecp_nistz256_from_mont(unsigned long res[4],const unsigned long in[4])159*1dcdf01fSchristos void ecp_nistz256_from_mont(unsigned long res[4], const unsigned long in[4])
160*1dcdf01fSchristos {
161*1dcdf01fSchristos static const unsigned long one[] = { 1, 0, 0, 0 };
162*1dcdf01fSchristos
163*1dcdf01fSchristos ecp_nistz256_mul_mont(res, in, one);
164*1dcdf01fSchristos }
165*1dcdf01fSchristos #endif
166*1dcdf01fSchristos
16760662d10Schristos static sigjmp_buf ill_jmp;
ill_handler(int sig)16860662d10Schristos static void ill_handler(int sig)
16960662d10Schristos {
17060662d10Schristos siglongjmp(ill_jmp, sig);
17160662d10Schristos }
17260662d10Schristos
173*1dcdf01fSchristos void OPENSSL_fpu_probe(void);
17460662d10Schristos void OPENSSL_ppc64_probe(void);
17560662d10Schristos void OPENSSL_altivec_probe(void);
17660662d10Schristos void OPENSSL_crypto207_probe(void);
177*1dcdf01fSchristos void OPENSSL_madd300_probe(void);
17860662d10Schristos
179*1dcdf01fSchristos long OPENSSL_rdtsc_mftb(void);
180*1dcdf01fSchristos long OPENSSL_rdtsc_mfspr268(void);
181*1dcdf01fSchristos
OPENSSL_rdtsc(void)182*1dcdf01fSchristos uint32_t OPENSSL_rdtsc(void)
183*1dcdf01fSchristos {
184*1dcdf01fSchristos if (OPENSSL_ppccap_P & PPC_MFTB)
185*1dcdf01fSchristos return OPENSSL_rdtsc_mftb();
186*1dcdf01fSchristos else if (OPENSSL_ppccap_P & PPC_MFSPR268)
187*1dcdf01fSchristos return OPENSSL_rdtsc_mfspr268();
188*1dcdf01fSchristos else
189*1dcdf01fSchristos return 0;
190*1dcdf01fSchristos }
191*1dcdf01fSchristos
192*1dcdf01fSchristos size_t OPENSSL_instrument_bus_mftb(unsigned int *, size_t);
193*1dcdf01fSchristos size_t OPENSSL_instrument_bus_mfspr268(unsigned int *, size_t);
194*1dcdf01fSchristos
OPENSSL_instrument_bus(unsigned int * out,size_t cnt)195*1dcdf01fSchristos size_t OPENSSL_instrument_bus(unsigned int *out, size_t cnt)
196*1dcdf01fSchristos {
197*1dcdf01fSchristos if (OPENSSL_ppccap_P & PPC_MFTB)
198*1dcdf01fSchristos return OPENSSL_instrument_bus_mftb(out, cnt);
199*1dcdf01fSchristos else if (OPENSSL_ppccap_P & PPC_MFSPR268)
200*1dcdf01fSchristos return OPENSSL_instrument_bus_mfspr268(out, cnt);
201*1dcdf01fSchristos else
202*1dcdf01fSchristos return 0;
203*1dcdf01fSchristos }
204*1dcdf01fSchristos
205*1dcdf01fSchristos size_t OPENSSL_instrument_bus2_mftb(unsigned int *, size_t, size_t);
206*1dcdf01fSchristos size_t OPENSSL_instrument_bus2_mfspr268(unsigned int *, size_t, size_t);
207*1dcdf01fSchristos
OPENSSL_instrument_bus2(unsigned int * out,size_t cnt,size_t max)208*1dcdf01fSchristos size_t OPENSSL_instrument_bus2(unsigned int *out, size_t cnt, size_t max)
209*1dcdf01fSchristos {
210*1dcdf01fSchristos if (OPENSSL_ppccap_P & PPC_MFTB)
211*1dcdf01fSchristos return OPENSSL_instrument_bus2_mftb(out, cnt, max);
212*1dcdf01fSchristos else if (OPENSSL_ppccap_P & PPC_MFSPR268)
213*1dcdf01fSchristos return OPENSSL_instrument_bus2_mfspr268(out, cnt, max);
214*1dcdf01fSchristos else
215*1dcdf01fSchristos return 0;
216*1dcdf01fSchristos }
217*1dcdf01fSchristos
218*1dcdf01fSchristos #if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
219*1dcdf01fSchristos # if __GLIBC_PREREQ(2, 16)
220*1dcdf01fSchristos # include <sys/auxv.h>
221*1dcdf01fSchristos # define OSSL_IMPLEMENT_GETAUXVAL
222*1dcdf01fSchristos # elif defined(__ANDROID_API__)
223*1dcdf01fSchristos /* see https://developer.android.google.cn/ndk/guides/cpu-features */
224*1dcdf01fSchristos # if __ANDROID_API__ >= 18
225*1dcdf01fSchristos # include <sys/auxv.h>
226*1dcdf01fSchristos # define OSSL_IMPLEMENT_GETAUXVAL
227*1dcdf01fSchristos # endif
228*1dcdf01fSchristos # endif
229*1dcdf01fSchristos #endif
230*1dcdf01fSchristos
231*1dcdf01fSchristos #if defined(__FreeBSD__)
232*1dcdf01fSchristos # include <sys/param.h>
233*1dcdf01fSchristos # if __FreeBSD_version >= 1200000
234*1dcdf01fSchristos # include <sys/auxv.h>
235*1dcdf01fSchristos # define OSSL_IMPLEMENT_GETAUXVAL
236*1dcdf01fSchristos
getauxval(unsigned long key)237*1dcdf01fSchristos static unsigned long getauxval(unsigned long key)
238*1dcdf01fSchristos {
239*1dcdf01fSchristos unsigned long val = 0ul;
240*1dcdf01fSchristos
241*1dcdf01fSchristos if (elf_aux_info((int)key, &val, sizeof(val)) != 0)
242*1dcdf01fSchristos return 0ul;
243*1dcdf01fSchristos
244*1dcdf01fSchristos return val;
245*1dcdf01fSchristos }
246*1dcdf01fSchristos # endif
247*1dcdf01fSchristos #endif
248*1dcdf01fSchristos
249*1dcdf01fSchristos /* I wish <sys/auxv.h> was universally available */
250*1dcdf01fSchristos #define HWCAP 16 /* AT_HWCAP */
251*1dcdf01fSchristos #define HWCAP_PPC64 (1U << 30)
252*1dcdf01fSchristos #define HWCAP_ALTIVEC (1U << 28)
253*1dcdf01fSchristos #define HWCAP_FPU (1U << 27)
254*1dcdf01fSchristos #define HWCAP_POWER6_EXT (1U << 9)
255*1dcdf01fSchristos #define HWCAP_VSX (1U << 7)
256*1dcdf01fSchristos
257*1dcdf01fSchristos #define HWCAP2 26 /* AT_HWCAP2 */
258*1dcdf01fSchristos #define HWCAP_VEC_CRYPTO (1U << 25)
259*1dcdf01fSchristos #define HWCAP_ARCH_3_00 (1U << 23)
260*1dcdf01fSchristos
261*1dcdf01fSchristos # if defined(__GNUC__) && __GNUC__>=2
262*1dcdf01fSchristos __attribute__ ((constructor))
263*1dcdf01fSchristos # endif
OPENSSL_cpuid_setup(void)26460662d10Schristos void OPENSSL_cpuid_setup(void)
26560662d10Schristos {
26660662d10Schristos char *e;
26760662d10Schristos struct sigaction ill_oact, ill_act;
26860662d10Schristos sigset_t oset;
26960662d10Schristos static int trigger = 0;
27060662d10Schristos
27160662d10Schristos if (trigger)
27260662d10Schristos return;
27360662d10Schristos trigger = 1;
27460662d10Schristos
275*1dcdf01fSchristos if ((e = getenv("OPENSSL_ppccap"))) {
276*1dcdf01fSchristos OPENSSL_ppccap_P = strtoul(e, NULL, 0);
277*1dcdf01fSchristos return;
278*1dcdf01fSchristos }
279*1dcdf01fSchristos
280*1dcdf01fSchristos OPENSSL_ppccap_P = 0;
281*1dcdf01fSchristos
282*1dcdf01fSchristos #if defined(_AIX)
283*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU;
284*1dcdf01fSchristos
285*1dcdf01fSchristos if (sizeof(size_t) == 4) {
286*1dcdf01fSchristos struct utsname uts;
287*1dcdf01fSchristos # if defined(_SC_AIX_KERNEL_BITMODE)
288*1dcdf01fSchristos if (sysconf(_SC_AIX_KERNEL_BITMODE) != 64)
289*1dcdf01fSchristos return;
290*1dcdf01fSchristos # endif
291*1dcdf01fSchristos if (uname(&uts) != 0 || atoi(uts.version) < 6)
292*1dcdf01fSchristos return;
293*1dcdf01fSchristos }
294*1dcdf01fSchristos
295*1dcdf01fSchristos # if defined(__power_set)
296*1dcdf01fSchristos /*
297*1dcdf01fSchristos * Value used in __power_set is a single-bit 1<<n one denoting
298*1dcdf01fSchristos * specific processor class. Incidentally 0xffffffff<<n can be
299*1dcdf01fSchristos * used to denote specific processor and its successors.
300*1dcdf01fSchristos */
301*1dcdf01fSchristos if (sizeof(size_t) == 4) {
302*1dcdf01fSchristos /* In 32-bit case PPC_FPU64 is always fastest [if option] */
303*1dcdf01fSchristos if (__power_set(0xffffffffU<<13)) /* POWER5 and later */
304*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU64;
305*1dcdf01fSchristos } else {
306*1dcdf01fSchristos /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
307*1dcdf01fSchristos if (__power_set(0x1U<<14)) /* POWER6 */
308*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU64;
309*1dcdf01fSchristos }
310*1dcdf01fSchristos
311*1dcdf01fSchristos if (__power_set(0xffffffffU<<14)) /* POWER6 and later */
312*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_ALTIVEC;
313*1dcdf01fSchristos
314*1dcdf01fSchristos if (__power_set(0xffffffffU<<16)) /* POWER8 and later */
315*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_CRYPTO207;
316*1dcdf01fSchristos
317*1dcdf01fSchristos if (__power_set(0xffffffffU<<17)) /* POWER9 and later */
318*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_MADD300;
319*1dcdf01fSchristos
320*1dcdf01fSchristos return;
321*1dcdf01fSchristos # endif
322*1dcdf01fSchristos #endif
323*1dcdf01fSchristos
324*1dcdf01fSchristos #if defined(__APPLE__) && defined(__MACH__)
325*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU;
326*1dcdf01fSchristos
327*1dcdf01fSchristos {
328*1dcdf01fSchristos int val;
329*1dcdf01fSchristos size_t len = sizeof(val);
330*1dcdf01fSchristos
331*1dcdf01fSchristos if (sysctlbyname("hw.optional.64bitops", &val, &len, NULL, 0) == 0) {
332*1dcdf01fSchristos if (val)
333*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU64;
334*1dcdf01fSchristos }
335*1dcdf01fSchristos
336*1dcdf01fSchristos len = sizeof(val);
337*1dcdf01fSchristos if (sysctlbyname("hw.optional.altivec", &val, &len, NULL, 0) == 0) {
338*1dcdf01fSchristos if (val)
339*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_ALTIVEC;
340*1dcdf01fSchristos }
341*1dcdf01fSchristos
342*1dcdf01fSchristos return;
343*1dcdf01fSchristos }
344*1dcdf01fSchristos #endif
345*1dcdf01fSchristos
346*1dcdf01fSchristos #ifdef OSSL_IMPLEMENT_GETAUXVAL
347*1dcdf01fSchristos {
348*1dcdf01fSchristos unsigned long hwcap = getauxval(HWCAP);
349*1dcdf01fSchristos unsigned long hwcap2 = getauxval(HWCAP2);
350*1dcdf01fSchristos
351*1dcdf01fSchristos if (hwcap & HWCAP_FPU) {
352*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU;
353*1dcdf01fSchristos
354*1dcdf01fSchristos if (sizeof(size_t) == 4) {
355*1dcdf01fSchristos /* In 32-bit case PPC_FPU64 is always fastest [if option] */
356*1dcdf01fSchristos if (hwcap & HWCAP_PPC64)
357*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU64;
358*1dcdf01fSchristos } else {
359*1dcdf01fSchristos /* In 64-bit case PPC_FPU64 is fastest only on POWER6 */
360*1dcdf01fSchristos if (hwcap & HWCAP_POWER6_EXT)
361*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU64;
362*1dcdf01fSchristos }
363*1dcdf01fSchristos }
364*1dcdf01fSchristos
365*1dcdf01fSchristos if (hwcap & HWCAP_ALTIVEC) {
366*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_ALTIVEC;
367*1dcdf01fSchristos
368*1dcdf01fSchristos if ((hwcap & HWCAP_VSX) && (hwcap2 & HWCAP_VEC_CRYPTO))
369*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_CRYPTO207;
370*1dcdf01fSchristos }
371*1dcdf01fSchristos
372*1dcdf01fSchristos if (hwcap2 & HWCAP_ARCH_3_00) {
373*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_MADD300;
374*1dcdf01fSchristos }
375*1dcdf01fSchristos }
376*1dcdf01fSchristos #endif
377*1dcdf01fSchristos
37860662d10Schristos sigfillset(&all_masked);
37960662d10Schristos sigdelset(&all_masked, SIGILL);
38060662d10Schristos sigdelset(&all_masked, SIGTRAP);
38160662d10Schristos #ifdef SIGEMT
38260662d10Schristos sigdelset(&all_masked, SIGEMT);
38360662d10Schristos #endif
38460662d10Schristos sigdelset(&all_masked, SIGFPE);
38560662d10Schristos sigdelset(&all_masked, SIGBUS);
38660662d10Schristos sigdelset(&all_masked, SIGSEGV);
38760662d10Schristos
38860662d10Schristos memset(&ill_act, 0, sizeof(ill_act));
38960662d10Schristos ill_act.sa_handler = ill_handler;
39060662d10Schristos ill_act.sa_mask = all_masked;
39160662d10Schristos
39260662d10Schristos sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
39360662d10Schristos sigaction(SIGILL, &ill_act, &ill_oact);
39460662d10Schristos
395*1dcdf01fSchristos #ifndef OSSL_IMPLEMENT_GETAUXVAL
396*1dcdf01fSchristos # ifdef __NetBSD__
397*1dcdf01fSchristos int error, val;
398*1dcdf01fSchristos size_t len = sizeof(val);
399*1dcdf01fSchristos
400*1dcdf01fSchristos /*
401*1dcdf01fSchristos * If machdep.fpu_present == 0, FPU is absent and emulated by
402*1dcdf01fSchristos * software. In that case, using FPU instructions hurts rather
403*1dcdf01fSchristos * than helps performance, and the software is unlikely to run in
404*1dcdf01fSchristos * constant time so it would expose us to timing side channel
405*1dcdf01fSchristos * attacks. So don't do it!
406*1dcdf01fSchristos */
407*1dcdf01fSchristos error = sysctlbyname("machdep.fpu_present", &val, &len, NULL, 0);
408*1dcdf01fSchristos if (error != 0 || (error == 0 && val != 0))
409*1dcdf01fSchristos # endif
410*1dcdf01fSchristos if (sigsetjmp(ill_jmp,1) == 0) {
411*1dcdf01fSchristos OPENSSL_fpu_probe();
412*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_FPU;
413*1dcdf01fSchristos
41460662d10Schristos if (sizeof(size_t) == 4) {
41560662d10Schristos # ifdef __linux
41660662d10Schristos struct utsname uts;
41760662d10Schristos if (uname(&uts) == 0 && strcmp(uts.machine, "ppc64") == 0)
41860662d10Schristos # endif
41960662d10Schristos if (sigsetjmp(ill_jmp, 1) == 0) {
42060662d10Schristos OPENSSL_ppc64_probe();
42160662d10Schristos OPENSSL_ppccap_P |= PPC_FPU64;
42260662d10Schristos }
42360662d10Schristos } else {
42460662d10Schristos /*
42560662d10Schristos * Wanted code detecting POWER6 CPU and setting PPC_FPU64
42660662d10Schristos */
42760662d10Schristos }
428*1dcdf01fSchristos }
42960662d10Schristos
43060662d10Schristos if (sigsetjmp(ill_jmp, 1) == 0) {
43160662d10Schristos OPENSSL_altivec_probe();
43260662d10Schristos OPENSSL_ppccap_P |= PPC_ALTIVEC;
43360662d10Schristos if (sigsetjmp(ill_jmp, 1) == 0) {
43460662d10Schristos OPENSSL_crypto207_probe();
43560662d10Schristos OPENSSL_ppccap_P |= PPC_CRYPTO207;
43660662d10Schristos }
43760662d10Schristos }
43860662d10Schristos
439*1dcdf01fSchristos if (sigsetjmp(ill_jmp, 1) == 0) {
440*1dcdf01fSchristos OPENSSL_madd300_probe();
441*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_MADD300;
442*1dcdf01fSchristos }
443*1dcdf01fSchristos #endif
444*1dcdf01fSchristos
445*1dcdf01fSchristos if (sigsetjmp(ill_jmp, 1) == 0) {
446*1dcdf01fSchristos OPENSSL_rdtsc_mftb();
447*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_MFTB;
448*1dcdf01fSchristos } else if (sigsetjmp(ill_jmp, 1) == 0) {
449*1dcdf01fSchristos OPENSSL_rdtsc_mfspr268();
450*1dcdf01fSchristos OPENSSL_ppccap_P |= PPC_MFSPR268;
451*1dcdf01fSchristos }
452*1dcdf01fSchristos
45360662d10Schristos sigaction(SIGILL, &ill_oact, NULL);
45460662d10Schristos sigprocmask(SIG_SETMASK, &oset, NULL);
45560662d10Schristos }
456