intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 296 insertions, 0 deletions

diff --git a/contrib/libs/openssl/crypto/sparcv9cap.c b/contrib/libs/openssl/crypto/sparcv9cap.c
new file mode 100644
index 0000000000..b3cb3d4be9
--- /dev/null
+++ b/contrib/libs/openssl/crypto/sparcv9cap.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright 2005-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#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 "internal/cryptlib.h"
+#include "bn/bn_local.h"    /* for definition of bn_mul_mont */
+
+#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);
+void _sparcv9_fjaesx_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);
+
+uint32_t 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[2] = { 0, 0 };
+
+        if (getisax (vec,2)) {
+            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 uninterruptible 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
+}