Add libgmp 6.2.0 to third_party
Don't build it yet. That will come in the next review.
Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/mini-gmp/tests/hex-random.c b/third_party/gmp/mini-gmp/tests/hex-random.c
new file mode 100644
index 0000000..a5b405b
--- /dev/null
+++ b/third_party/gmp/mini-gmp/tests/hex-random.c
@@ -0,0 +1,573 @@
+/*
+
+Copyright 2011, 2016, 2018 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <time.h>
+
+#ifdef __unix__
+# include <unistd.h>
+# include <sys/time.h>
+#endif
+
+#include "gmp.h"
+
+#include "hex-random.h"
+
+/* FIXME: gmp-impl.h included only for mpz_lucas_mod */
+/* #include "gmp-impl.h" */
+#if defined (__cplusplus)
+extern "C" {
+#endif
+
+#define mpz_lucas_mod __gmpz_lucas_mod
+__GMP_DECLSPEC int mpz_lucas_mod (mpz_ptr, mpz_ptr, long, mp_bitcnt_t, mpz_srcptr, mpz_ptr, mpz_ptr);
+
+#if defined (__cplusplus)
+}
+#endif
+
+static gmp_randstate_t state;
+
+static void
+mkseed (mpz_t seed)
+{
+ FILE *f = fopen ("/dev/urandom", "rb");
+ if (f)
+ {
+ unsigned char buf[6];
+ size_t res;
+
+ setbuf (f, NULL);
+ res = fread (buf, sizeof(buf), 1, f);
+ fclose (f);
+
+ if (res == 1)
+ {
+ mpz_import (seed, sizeof(buf), 1, 1, 0, 0, buf);
+ return;
+ }
+ }
+
+#ifdef __unix__
+ {
+ struct timeval tv;
+ mpz_t usec;
+ mpz_init (usec);
+
+ gettimeofday (&tv, NULL);
+ mpz_set_ui (seed, tv.tv_sec);
+ mpz_set_ui (usec, tv.tv_usec);
+ /* usec fits in 20 bits, shift left to make it 48 bits. */
+ mpz_mul_2exp (usec, usec, 28);
+ mpz_xor (seed, seed, usec);
+
+ mpz_clear (usec);
+ }
+#else
+ mpz_set_ui (seed, time (NULL));
+#endif
+}
+
+void
+hex_random_init (void)
+{
+ mpz_t seed;
+ char *env_seed;
+
+ mpz_init (seed);
+
+ env_seed = getenv ("GMP_CHECK_RANDOMIZE");
+ if (env_seed && env_seed[0])
+ {
+ mpz_set_str (seed, env_seed, 0);
+ if (mpz_cmp_ui (seed, 0) != 0)
+ gmp_printf ("Re-seeding with GMP_CHECK_RANDOMIZE=%Zd\n", seed);
+ else
+ {
+ mkseed (seed);
+ gmp_printf ("Seed GMP_CHECK_RANDOMIZE=%Zd (include this in bug reports)\n", seed);
+ }
+ fflush (stdout);
+ }
+ else
+ mpz_set_ui (seed, 4711);
+
+ gmp_randinit_default (state);
+ gmp_randseed (state, seed);
+
+ mpz_clear (seed);
+}
+
+char *
+hex_urandomb (unsigned long bits)
+{
+ char *res;
+ mpz_t x;
+
+ mpz_init (x);
+ mpz_urandomb (x, state, bits);
+ gmp_asprintf (&res, "%Zx", x);
+ mpz_clear (x);
+ return res;
+}
+
+char *
+hex_rrandomb (unsigned long bits)
+{
+ char *res;
+ mpz_t x;
+
+ mpz_init (x);
+ mpz_rrandomb (x, state, bits);
+ gmp_asprintf (&res, "%Zx", x);
+ mpz_clear (x);
+ return res;
+}
+
+char *
+hex_rrandomb_export (void *dst, size_t *countp,
+ int order, size_t size, int endian, unsigned long bits)
+{
+ char *res;
+ mpz_t x;
+ mpz_init (x);
+ mpz_rrandomb (x, state, bits);
+ gmp_asprintf (&res, "%Zx", x);
+ mpz_export (dst, countp, order, size, endian, 0, x);
+ mpz_clear (x);
+ return res;
+}
+
+void hex_random_op2 (enum hex_random_op op, unsigned long maxbits,
+ char **ap, char **rp)
+{
+ mpz_t a, r;
+ unsigned long abits;
+ unsigned signs;
+
+ mpz_init (a);
+ mpz_init (r);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+
+ mpz_rrandomb (a, state, abits);
+
+ signs = gmp_urandomb_ui (state, 1);
+ if (signs & 1)
+ mpz_neg (a, a);
+
+ switch (op)
+ {
+ default:
+ abort ();
+ case OP_SQR:
+ mpz_mul (r, a, a);
+ break;
+ }
+
+ gmp_asprintf (ap, "%Zx", a);
+ gmp_asprintf (rp, "%Zx", r);
+
+ mpz_clear (a);
+ mpz_clear (r);
+}
+
+void
+hex_random_op3 (enum hex_random_op op, unsigned long maxbits,
+ char **ap, char **bp, char **rp)
+{
+ mpz_t a, b, r;
+ unsigned long abits, bbits;
+ unsigned signs;
+
+ mpz_init (a);
+ mpz_init (b);
+ mpz_init (r);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+ bbits = gmp_urandomb_ui (state, 32) % maxbits;
+
+ mpz_rrandomb (a, state, abits);
+ mpz_rrandomb (b, state, bbits);
+
+ signs = gmp_urandomb_ui (state, 3);
+ if (signs & 1)
+ mpz_neg (a, a);
+ if (signs & 2)
+ mpz_neg (b, b);
+
+ switch (op)
+ {
+ default:
+ abort ();
+ case OP_ADD:
+ mpz_add (r, a, b);
+ break;
+ case OP_SUB:
+ mpz_sub (r, a, b);
+ break;
+ case OP_MUL:
+ mpz_mul (r, a, b);
+ break;
+ case OP_GCD:
+ if (signs & 4)
+ {
+ /* Produce a large gcd */
+ unsigned long gbits = gmp_urandomb_ui (state, 32) % maxbits;
+ mpz_rrandomb (r, state, gbits);
+ mpz_mul (a, a, r);
+ mpz_mul (b, b, r);
+ }
+ mpz_gcd (r, a, b);
+ break;
+ case OP_LCM:
+ if (signs & 4)
+ {
+ /* Produce a large gcd */
+ unsigned long gbits = gmp_urandomb_ui (state, 32) % maxbits;
+ mpz_rrandomb (r, state, gbits);
+ mpz_mul (a, a, r);
+ mpz_mul (b, b, r);
+ }
+ mpz_lcm (r, a, b);
+ break;
+ case OP_AND:
+ mpz_and (r, a, b);
+ break;
+ case OP_IOR:
+ mpz_ior (r, a, b);
+ break;
+ case OP_XOR:
+ mpz_xor (r, a, b);
+ break;
+ }
+
+ gmp_asprintf (ap, "%Zx", a);
+ gmp_asprintf (bp, "%Zx", b);
+ gmp_asprintf (rp, "%Zx", r);
+
+ mpz_clear (a);
+ mpz_clear (b);
+ mpz_clear (r);
+}
+
+void
+hex_random_op4 (enum hex_random_op op, unsigned long maxbits,
+ char **ap, char **bp, char **cp, char **dp)
+{
+ mpz_t a, b, c, d;
+ unsigned long abits, bbits;
+ unsigned signs;
+
+ mpz_init (a);
+ mpz_init (b);
+ mpz_init (c);
+ mpz_init (d);
+
+ if (op == OP_POWM)
+ {
+ unsigned long cbits;
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+ bbits = 1 + gmp_urandomb_ui (state, 32) % maxbits;
+ cbits = 2 + gmp_urandomb_ui (state, 32) % maxbits;
+
+ mpz_rrandomb (a, state, abits);
+ mpz_rrandomb (b, state, bbits);
+ mpz_rrandomb (c, state, cbits);
+
+ signs = gmp_urandomb_ui (state, 3);
+ if (signs & 1)
+ mpz_neg (a, a);
+ if (signs & 2)
+ {
+ mpz_t g;
+
+ /* If we negate the exponent, must make sure that gcd(a, c) = 1 */
+ if (mpz_sgn (a) == 0)
+ mpz_set_ui (a, 1);
+ else
+ {
+ mpz_init (g);
+
+ for (;;)
+ {
+ mpz_gcd (g, a, c);
+ if (mpz_cmp_ui (g, 1) == 0)
+ break;
+ mpz_divexact (a, a, g);
+ }
+ mpz_clear (g);
+ }
+ mpz_neg (b, b);
+ }
+ if (signs & 4)
+ mpz_neg (c, c);
+
+ mpz_powm (d, a, b, c);
+ }
+ else
+ {
+ unsigned long qbits;
+ bbits = 1 + gmp_urandomb_ui (state, 32) % maxbits;
+ qbits = gmp_urandomb_ui (state, 32) % maxbits;
+ abits = bbits + qbits;
+ if (abits > 30)
+ abits -= 30;
+ else
+ abits = 0;
+
+ mpz_rrandomb (a, state, abits);
+ mpz_rrandomb (b, state, bbits);
+
+ signs = gmp_urandomb_ui (state, 2);
+ if (signs & 1)
+ mpz_neg (a, a);
+ if (signs & 2)
+ mpz_neg (b, b);
+
+ switch (op)
+ {
+ default:
+ abort ();
+ case OP_CDIV:
+ mpz_cdiv_qr (c, d, a, b);
+ break;
+ case OP_FDIV:
+ mpz_fdiv_qr (c, d, a, b);
+ break;
+ case OP_TDIV:
+ mpz_tdiv_qr (c, d, a, b);
+ break;
+ }
+ }
+ gmp_asprintf (ap, "%Zx", a);
+ gmp_asprintf (bp, "%Zx", b);
+ gmp_asprintf (cp, "%Zx", c);
+ gmp_asprintf (dp, "%Zx", d);
+
+ mpz_clear (a);
+ mpz_clear (b);
+ mpz_clear (c);
+ mpz_clear (d);
+}
+
+void
+hex_random_bit_op (enum hex_random_op op, unsigned long maxbits,
+ char **ap, unsigned long *b, char **rp)
+{
+ mpz_t a, r;
+ unsigned long abits, bbits;
+ unsigned signs;
+
+ mpz_init (a);
+ mpz_init (r);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+ bbits = gmp_urandomb_ui (state, 32) % (maxbits + 100);
+
+ mpz_rrandomb (a, state, abits);
+
+ signs = gmp_urandomb_ui (state, 1);
+ if (signs & 1)
+ mpz_neg (a, a);
+
+ switch (op)
+ {
+ default:
+ abort ();
+
+ case OP_SETBIT:
+ mpz_set (r, a);
+ mpz_setbit (r, bbits);
+ break;
+ case OP_CLRBIT:
+ mpz_set (r, a);
+ mpz_clrbit (r, bbits);
+ break;
+ case OP_COMBIT:
+ mpz_set (r, a);
+ mpz_combit (r, bbits);
+ break;
+ case OP_CDIV_Q_2:
+ mpz_cdiv_q_2exp (r, a, bbits);
+ break;
+ case OP_CDIV_R_2:
+ mpz_cdiv_r_2exp (r, a, bbits);
+ break;
+ case OP_FDIV_Q_2:
+ mpz_fdiv_q_2exp (r, a, bbits);
+ break;
+ case OP_FDIV_R_2:
+ mpz_fdiv_r_2exp (r, a, bbits);
+ break;
+ case OP_TDIV_Q_2:
+ mpz_tdiv_q_2exp (r, a, bbits);
+ break;
+ case OP_TDIV_R_2:
+ mpz_tdiv_r_2exp (r, a, bbits);
+ break;
+ }
+
+ gmp_asprintf (ap, "%Zx", a);
+ *b = bbits;
+ gmp_asprintf (rp, "%Zx", r);
+
+ mpz_clear (a);
+ mpz_clear (r);
+}
+
+void
+hex_random_scan_op (enum hex_random_op op, unsigned long maxbits,
+ char **ap, unsigned long *b, unsigned long *r)
+{
+ mpz_t a;
+ unsigned long abits, bbits;
+ unsigned signs;
+
+ mpz_init (a);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+ bbits = gmp_urandomb_ui (state, 32) % (maxbits + 100);
+
+ mpz_rrandomb (a, state, abits);
+
+ signs = gmp_urandomb_ui (state, 1);
+ if (signs & 1)
+ mpz_neg (a, a);
+
+ switch (op)
+ {
+ default:
+ abort ();
+
+ case OP_SCAN0:
+ *r = mpz_scan0 (a, bbits);
+ break;
+ case OP_SCAN1:
+ *r = mpz_scan1 (a, bbits);
+ break;
+ }
+ gmp_asprintf (ap, "%Zx", a);
+ *b = bbits;
+
+ mpz_clear (a);
+}
+
+void
+hex_random_str_op (unsigned long maxbits,
+ int base, char **ap, char **rp)
+{
+ mpz_t a;
+ unsigned long abits;
+ unsigned signs;
+
+ mpz_init (a);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+
+ mpz_rrandomb (a, state, abits);
+
+ signs = gmp_urandomb_ui (state, 2);
+ if (signs & 1)
+ mpz_neg (a, a);
+
+ *ap = mpz_get_str (NULL, 16, a);
+ *rp = mpz_get_str (NULL, base, a);
+
+ mpz_clear (a);
+}
+
+void hex_random_lucm_op (unsigned long maxbits,
+ char **vp, char **qp, char **mp,
+ long *Q, unsigned long *b0, int *res)
+{
+ mpz_t m, v, q, t1, t2;
+ unsigned long mbits;
+
+ mpz_init (m);
+ mpz_init (v);
+ mpz_init (q);
+ mpz_init (t1);
+ mpz_init (t2);
+
+ *Q = gmp_urandomb_ui (state, 14) + 1;
+
+ do
+ {
+ mbits = gmp_urandomb_ui (state, 32) % maxbits + 5;
+
+ mpz_rrandomb (m, state, mbits);
+ *b0 = gmp_urandomb_ui (state, 32) % (mbits - 3) + 2;
+ /* The GMP implementation uses the exponent (m >> b0) + 1. */
+ /* mini-gmp implementation uses the exponent (m >> b0) | 1. */
+ /* They are the same (and are used) only when (m >> b0) is even */
+ mpz_clrbit (m, *b0);
+ /* mini-gmp implementation only works if the modulus is odd. */
+ mpz_setbit (m, 0);
+ }
+ while (mpz_gcd_ui (NULL, m, *Q) != 1);
+
+ if (*Q == 1 || gmp_urandomb_ui (state, 1))
+ *Q = - *Q;
+
+#if (__GNU_MP_VERSION == 6 && (__GNU_MP_VERSION_MINOR > 1 || __GNU_MP_VERSION_PATCHLEVEL > 9))
+ *res = mpz_lucas_mod (v, q, *Q, *b0, m, t1, t2);
+#else
+ *b0 = 0;
+#endif
+
+ gmp_asprintf (vp, "%Zx", v);
+ gmp_asprintf (qp, "%Zx", q);
+ gmp_asprintf (mp, "%Zx", m);
+
+ mpz_clear (m);
+ mpz_clear (v);
+ mpz_clear (q);
+ mpz_clear (t1);
+ mpz_clear (t2);
+}
+
+void
+hex_mpq_random_str_op (unsigned long maxbits,
+ int base, char **ap, char **rp)
+{
+ mpq_t a;
+ unsigned long abits;
+ unsigned signs;
+
+ mpq_init (a);
+
+ abits = gmp_urandomb_ui (state, 32) % maxbits;
+
+ mpz_rrandomb (mpq_numref (a), state, abits);
+ mpz_rrandomb (mpq_denref (a), state, abits);
+ mpz_add_ui (mpq_denref (a), mpq_denref (a), 1);
+
+ mpq_canonicalize (a);
+ signs = gmp_urandomb_ui (state, 2);
+ if (signs & 1)
+ mpq_neg (a, a);
+
+ *ap = mpq_get_str (NULL, 16, a);
+ *rp = mpq_get_str (NULL, base, a);
+
+ mpq_clear (a);
+}