v3.19.5

RELEASE_NOTES

@@ -65,6 +65,19 @@ If not what makes it happen or not happen?
 Change Log
 ----------
 
+v3.19.5
+
+Enhanced stratum-keepalive preemptively resets the stratum connection
+before the server to avoid lost shares.
+
+Added build-msys2.sh scrypt for easier compiling on Windows, see Wiki for details.
+
+X16RT: eliminate unnecessary recalculations of the hash order.
+
+Fix a few compiler warnings.
+
+Fixed log colour error when a block is solved.
+
 v3.19.4
 
 #359: Fix verthash memory allocation for non-hugepages, broken in v3.19.3.

algo/argon2/argon2a/ar2/sj/scrypt-jane-portable-x86.h

@@ -344,7 +344,7 @@ static size_t
 detect_cpu(void) {
 	//union { uint8_t s[12]; uint32_t i[3]; } vendor_string;
 	//cpu_vendors_x86 vendor = cpu_nobody;
-	x86_regs regs;
+	x86_regs regs; regs.eax = regs.ebx = regs.ecx = 0;
 	uint32_t max_level, max_ext_level;
 	size_t cpu_flags = 0;
 #if defined(X86ASM_AVX) || defined(X86_64ASM_AVX)
@@ -460,4 +460,4 @@ get_top_cpuflag_desc(size_t flag) {
 	#endif
 #endif
 
-#endif /* defined(CPU_X86) || defined(CPU_X86_64) */
+#endif /* defined(CPU_X86) || defined(CPU_X86_64) */

algo/argon2/argon2a/ar2/sj/scrypt-jane-romix-basic.h

@@ -4,11 +4,12 @@ typedef void (FASTCALL *scrypt_ROMixfn)(scrypt_mix_word_t *X/*[chunkWords]*/, sc
 #endif
 
 /* romix pre/post nop function */
+/*
 static void asm_calling_convention
 scrypt_romix_nop(scrypt_mix_word_t *blocks, size_t nblocks) {
 	(void)blocks; (void)nblocks;
 }
-
+*/
 /* romix pre/post endian conversion function */
 static void asm_calling_convention
 scrypt_romix_convert_endian(scrypt_mix_word_t *blocks, size_t nblocks) {

algo/blake/decred-gate.c

@@ -70,7 +70,10 @@ void decred_be_build_stratum_request( char *req, struct work *work,
          rpc_user, work->job_id, xnonce2str, ntimestr, noncestr );
    free(xnonce2str);
 }
+
+#if !defined(min)
 #define min(a,b) (a>b ? (b) :(a))
+#endif
 
 void decred_build_extraheader( struct work* g_work, struct stratum_ctx* sctx )
 {

algo/hodl/sha512-avx.h

@@ -45,6 +45,6 @@ void sha512Compute32b_parallel(
         uint64_t *data[SHA512_PARALLEL_N],
         uint64_t *digest[SHA512_PARALLEL_N]);
 
-void sha512ProcessBlock(Sha512Context *context);
+void sha512ProcessBlock(Sha512Context contexti[2] );
 
 #endif

algo/ripemd/sph_ripemd.c

@@ -35,6 +35,7 @@
 
 #include "sph_ripemd.h"
 
+#if 0
 /*
  * Round functions for RIPEMD (original).
  */
@@ -46,6 +47,7 @@ static const sph_u32 oIV[5] = {
 	SPH_C32(0x67452301), SPH_C32(0xEFCDAB89),
 	SPH_C32(0x98BADCFE), SPH_C32(0x10325476)
 };
+#endif
 
 /*
  * Round functions for RIPEMD-128 and RIPEMD-160.
@@ -63,6 +65,8 @@ static const sph_u32 IV[5] = {
 
 #define ROTL    SPH_ROTL32
 
+#if 0
+
 /* ===================================================================== */
 /*
  * RIPEMD (original hash, deprecated).
@@ -539,6 +543,8 @@ sph_ripemd128_comp(const sph_u32 msg[16], sph_u32 val[4])
 #undef RIPEMD128_IN
 }
 
+#endif
+
 /* ===================================================================== */
 /*
  * RIPEMD-160.

algo/ripemd/sph_ripemd.h

@@ -84,6 +84,7 @@
  * can be cloned by copying the context (e.g. with a simple
  * <code>memcpy()</code>).
  */
+#if 0
 typedef struct {
 #ifndef DOXYGEN_IGNORE
 	unsigned char buf[64];    /* first field, for alignment */
@@ -204,6 +205,8 @@ void sph_ripemd128_close(void *cc, void *dst);
  */
 void sph_ripemd128_comp(const sph_u32 msg[16], sph_u32 val[4]);
 
+#endif
+
 /* ===================================================================== */
 
 /**

algo/sm3/sph_sm3.h

@@ -74,7 +74,7 @@ typedef struct {
 
 void sm3_init(sm3_ctx_t *ctx);
 void sm3_update(sm3_ctx_t *ctx, const unsigned char* data, size_t data_len);
-void sm3_final(sm3_ctx_t *ctx, unsigned char digest[SM3_DIGEST_LENGTH]);
+void sm3_final(sm3_ctx_t *ctx, unsigned char *digest);
 void sm3_compress(uint32_t digest[8], const unsigned char block[SM3_BLOCK_SIZE]);
 void sm3(const unsigned char *data, size_t datalen,
 	unsigned char digest[SM3_DIGEST_LENGTH]);

algo/x16/x16rt-4way.c

@@ -24,15 +24,15 @@ int scanhash_x16rt_8way( struct work *work, uint32_t max_nonce,
    if ( bench )   ptarget[7] = 0x0cff;
 
    static __thread uint32_t s_ntime = UINT32_MAX;
-   uint32_t ntime = bswap_32( pdata[17] );
+   uint32_t masked_ntime = bswap_32( pdata[17] ) & 0xffffff80;
-   if ( s_ntime != ntime )
+   if ( s_ntime != masked_ntime )
    {
-      x16rt_getTimeHash( ntime, &timeHash );
+      x16rt_getTimeHash( masked_ntime, &timeHash );
       x16rt_getAlgoString( &timeHash[0], x16r_hash_order );
-      s_ntime = ntime;
+      s_ntime = masked_ntime;
       if ( opt_debug && !thr_id )
           applog( LOG_INFO, "hash order: %s time: (%08x) time hash: (%08x)",
-                               x16r_hash_order, ntime, timeHash );
+                            x16r_hash_order, bswap_32( pdata[17] ), timeHash );
    }
 
    x16r_8way_prehash( vdata, pdata );
@@ -78,15 +78,15 @@ int scanhash_x16rt_4way( struct work *work, uint32_t max_nonce,
    if ( bench )  ptarget[7] = 0x0cff;
 
    static __thread uint32_t s_ntime = UINT32_MAX;
-   uint32_t ntime = bswap_32( pdata[17] );
+   uint32_t masked_ntime = bswap_32( pdata[17] ) & 0xffffff80;
-   if ( s_ntime != ntime )
+   if ( s_ntime != masked_ntime )
    {
-      x16rt_getTimeHash( ntime, &timeHash );
+      x16rt_getTimeHash( masked_ntime, &timeHash );
       x16rt_getAlgoString( &timeHash[0], x16r_hash_order );
-      s_ntime = ntime;
+      s_ntime = masked_ntime;
       if ( opt_debug && !thr_id )
           applog( LOG_INFO, "hash order: %s time: (%08x) time hash: (%08x)",
-                               x16r_hash_order, ntime, timeHash );
+                            x16r_hash_order, bswap_32( pdata[17] ), timeHash );
    }
 
    x16r_4way_prehash( vdata, pdata );

algo/x16/x16rt.c

@@ -20,15 +20,15 @@ int scanhash_x16rt( struct work *work, uint32_t max_nonce,
    mm128_bswap32_80( edata, pdata );
 
    static __thread uint32_t s_ntime = UINT32_MAX;
-   uint32_t ntime = swab32( pdata[17] );
+   uint32_t masked_ntime = swab32( pdata[17] ) & 0xffffff80;
-   if ( s_ntime != ntime )
+   if ( s_ntime != masked_ntime )
    {
-      x16rt_getTimeHash( ntime, &timeHash );
+      x16rt_getTimeHash( masked_ntime, &timeHash );
       x16rt_getAlgoString( &timeHash[0], x16r_hash_order );
-      s_ntime = ntime;
+      s_ntime = masked_ntime;
       if ( opt_debug && !thr_id )
           applog( LOG_INFO, "hash order: %s time: (%08x) time hash: (%08x)",
-                               x16r_hash_order, ntime, timeHash );
+                        x16r_hash_order, swab32( pdata[17] ), timeHash );
    }
    
    x16r_prehash( edata, pdata );

build-msys2.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+#
+# Compile on Windows using MSYS2 and MinGW.
+
+make distclean || echo clean
+rm -f config.status
+./autogen.sh || echo done
+CFLAGS="-O3 --param=evrp-mode=legacy -march=native -Wall -D_WIN32_WINNT=0x0601" ./configure --with-curl
+make -j 4
+strip -s cpuminer

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for cpuminer-opt 3.19.4.
+# Generated by GNU Autoconf 2.69 for cpuminer-opt 3.19.5.
 #
 #
 # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
@@ -577,8 +577,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='cpuminer-opt'
 PACKAGE_TARNAME='cpuminer-opt'
-PACKAGE_VERSION='3.19.4'
+PACKAGE_VERSION='3.19.5'
-PACKAGE_STRING='cpuminer-opt 3.19.4'
+PACKAGE_STRING='cpuminer-opt 3.19.5'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1332,7 +1332,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures cpuminer-opt 3.19.4 to adapt to many kinds of systems.
+\`configure' configures cpuminer-opt 3.19.5 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1404,7 +1404,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of cpuminer-opt 3.19.4:";;
+     short | recursive ) echo "Configuration of cpuminer-opt 3.19.5:";;
    esac
   cat <<\_ACEOF
 
@@ -1509,7 +1509,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-cpuminer-opt configure 3.19.4
+cpuminer-opt configure 3.19.5
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2012,7 +2012,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by cpuminer-opt $as_me 3.19.4, which was
+It was created by cpuminer-opt $as_me 3.19.5, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2993,7 +2993,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='cpuminer-opt'
- VERSION='3.19.4'
+ VERSION='3.19.5'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -6690,7 +6690,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by cpuminer-opt $as_me 3.19.4, which was
+This file was extended by cpuminer-opt $as_me 3.19.5, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -6756,7 +6756,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-cpuminer-opt config.status 3.19.4
+cpuminer-opt config.status 3.19.5
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -1,4 +1,4 @@
-AC_INIT([cpuminer-opt], [3.19.4])
+AC_INIT([cpuminer-opt], [3.19.5])
 
 AC_PREREQ([2.59c])
 AC_CANONICAL_SYSTEM

cpu-miner.c

@@ -131,6 +131,8 @@ static bool opt_stratum_keepalive = false;
 static struct timeval stratum_keepalive_timer;
 // Stratum typically times out in 5 minutes or 300 seconds
 #define stratum_keepalive_timeout 180  // 3 minutes
+static struct timeval stratum_reset_time;
+
 
 // pk_buffer_size is used as a version selector by b58 code, therefore
 // it must be set correctly to work.
@@ -191,7 +193,6 @@ int default_api_listen = 4048;
 static struct   timeval session_start;
 static struct   timeval five_min_start;
 static uint64_t session_first_block = 0;
-static double   latency_sum = 0.;
 static uint64_t submit_sum  = 0;
 static uint64_t accept_sum  = 0;
 static uint64_t stale_sum  = 0;
@@ -1147,7 +1148,7 @@ void report_summary_log( bool force )
                solved, solved_block_count );
    }
    if ( stratum_errors )
-      applog2( LOG_INFO, "Stratum errors               %7d", stratum_errors );
+      applog2( LOG_INFO, "Stratum resets               %7d", stratum_errors );
 
    applog2( LOG_INFO, "Hi/Lo Share Diff  %.5g /  %.5g",
             highest_share, lowest_share );
@@ -1278,7 +1279,6 @@ static int share_result( int result, struct work *work,
       else          reject_sum++;
    }
    submit_sum++;
-   latency_sum += latency;
 
    pthread_mutex_unlock( &stats_lock );
 
@@ -1294,9 +1294,9 @@ static int share_result( int result, struct work *work,
      else              rcol = CL_LRD;
    }
 
-   applog( LOG_INFO, "%d %s%s %s%s %s%s %s%s" CL_WHT ", %.3f sec (%dms)",
+   applog( LOG_INFO, "%d %s%s %s%s %s%s %s%s%s, %.3f sec (%dms)",
            my_stats.share_count, acol, ares, scol, sres, rcol, rres, bcol,
-           bres, share_time, latency );
+           bres, CL_N, share_time, latency );
 
    if ( unlikely( opt_debug || !result || solved ) )
    {
@@ -2114,7 +2114,7 @@ static void stratum_gen_work( struct stratum_ctx *sctx, struct work *g_work )
    {
       unsigned char *xnonce2str = bebin2hex( g_work->xnonce2,
                                              g_work->xnonce2_len );
-      applog( LOG_INFO, "Extranonce2 %s, Block %d, Job %s",
+      applog( LOG_INFO, "Extranonce2 0x%s, Block %d, Job %s",
                         xnonce2str, sctx->block_height, g_work->job_id );
       free( xnonce2str );
    }
@@ -2733,6 +2733,18 @@ void std_build_extraheader( struct work* g_work, struct stratum_ctx* sctx )
           sctx->job.final_sapling_hash );
 }
 
+// Loop is out of order:
+//
+//   connect/reconnect
+//   handle message
+//   get new message
+//
+// change to
+//   connect/reconnect
+//   get new message
+//   handle message
+
+
 static void *stratum_thread(void *userdata )
 {
    struct thr_info *mythr = (struct thr_info *) userdata;
@@ -2750,6 +2762,7 @@ static void *stratum_thread(void *userdata )
       if ( unlikely( stratum_need_reset ) )
       {
           stratum_need_reset = false;
+          gettimeofday( &stratum_reset_time, NULL );
           stratum_down = true;
           stratum_errors++;
           stratum_disconnect( &stratum );
@@ -2760,7 +2773,7 @@ static void *stratum_thread(void *userdata )
 	          applog(LOG_BLUE, "Connection changed to %s", short_url);
           }
           else 
-	          applog(LOG_WARNING, "Stratum connection reset");
+	          applog(LOG_BLUE, "Stratum connection reset");
           // reset stats queue as well
           restart_threads();
           if ( s_get_ptr != s_put_ptr ) s_get_ptr = s_put_ptr = 0;
@@ -2795,34 +2808,11 @@ static void *stratum_thread(void *userdata )
          }
       }
 
-      report_summary_log( ( stratum_diff != stratum.job.diff )
+//      report_summary_log( ( stratum_diff != stratum.job.diff )
-                       && ( stratum_diff != 0. ) );
+//                       && ( stratum_diff != 0. ) );
       
-      if ( stratum.new_job )
+//      if ( stratum.new_job )
-         stratum_gen_work( &stratum, &g_work );
+//         stratum_gen_work( &stratum, &g_work );
-
-      // is keepalive needed?
-      if ( opt_stratum_keepalive )
-      {
-         struct timeval now, et;
-         gettimeofday( &now, NULL );
-         // any shares submitted since last keepalive?
-         if ( last_submit_time.tv_sec > stratum_keepalive_timer.tv_sec )
-            memcpy( &stratum_keepalive_timer, &last_submit_time,
-                    sizeof (struct timeval) );
-
-         timeval_subtract( &et, &now, &stratum_keepalive_timer );
-
-         if ( et.tv_sec > stratum_keepalive_timeout )
-         {
-             double diff = stratum.job.diff * 0.5;
-             stratum_keepalive_timer = now;
-             if ( !opt_quiet )
-                applog( LOG_BLUE,
-                        "Stratum keepalive requesting lower difficulty" );
-             stratum_suggest_difficulty( &stratum, diff );
-         }
-      }
 
       // Wait for new message from server
       if ( likely( stratum_socket_full( &stratum, opt_timeout ) ) )
@@ -2846,6 +2836,54 @@ static void *stratum_thread(void *userdata )
          stratum_need_reset = true;
 //         stratum_disconnect( &stratum );
       }
+
+      report_summary_log( ( stratum_diff != stratum.job.diff )
+                       && ( stratum_diff != 0. ) );
+
+      if ( !stratum_need_reset )
+      {
+         // Is keepalive needed? Mutex would normally be required but that
+         // would block any attempt to submit a share. A share is more
+         // important even if it messes up the keepalive.
+
+         if ( opt_stratum_keepalive )
+         {
+            struct timeval now, et;
+            gettimeofday( &now, NULL );
+            // any shares submitted since last keepalive?
+            if ( last_submit_time.tv_sec > stratum_keepalive_timer.tv_sec )
+               memcpy( &stratum_keepalive_timer, &last_submit_time,
+                       sizeof (struct timeval) );
+
+            timeval_subtract( &et, &now, &stratum_keepalive_timer );
+
+            if ( et.tv_sec > stratum_keepalive_timeout )
+            {
+                double diff = stratum.job.diff * 0.5;
+                stratum_keepalive_timer = now;
+                if ( !opt_quiet )
+                   applog( LOG_BLUE,
+                           "Stratum keepalive requesting lower difficulty" );
+                stratum_suggest_difficulty( &stratum, diff );
+            }
+
+            if ( last_submit_time.tv_sec > stratum_reset_time.tv_sec )
+              timeval_subtract( &et, &now, &last_submit_time );
+            else
+              timeval_subtract( &et, &now, &stratum_reset_time );
+
+            if ( et.tv_sec > stratum_keepalive_timeout + 60 )
+            {
+               applog( LOG_NOTICE, "No shares submitted, resetting stratum connection" );
+               stratum_need_reset = true;
+               stratum_keepalive_timer = now;
+            }
+         } // stratum_keepalive
+
+         if ( stratum.new_job && !stratum_need_reset )
+            stratum_gen_work( &stratum, &g_work );
+
+      } // stratum_need_reset
    }  // loop
 out:
   return NULL;
@@ -3434,7 +3472,8 @@ void parse_arg(int key, char *arg )
       break;
 	case 1021:  // cpu-priority
 		v = atoi(arg);
-		if (v < 0 || v > 5)	/* sanity check */
+      applog(LOG_NOTICE,"--cpu-priority is deprecated and will be removed from a future release");
+      if (v < 0 || v > 5)	/* sanity check */
 			show_usage_and_exit(1);
 		opt_priority = v;
 		break;
@@ -3470,7 +3509,8 @@ void parse_arg(int key, char *arg )
 		break;
 	case 1024:
 		opt_randomize = true;
-		break;
+      applog(LOG_NOTICE,"--randomize is deprecated and will be removed from a future release");
+      break;
    case 1027:  // data-file
       opt_data_file = strdup( arg );
       break;
@@ -3930,6 +3970,7 @@ int main(int argc, char *argv[])
    memcpy( &five_min_start, &last_submit_time, sizeof (struct timeval) );
    memcpy( &session_start, &last_submit_time, sizeof (struct timeval) );
    memcpy( &stratum_keepalive_timer, &last_submit_time, sizeof (struct timeval) );
+   memcpy( &stratum_reset_time, &last_submit_time, sizeof (struct timeval) );
    memcpy( &total_hashes_time, &last_submit_time, sizeof (struct timeval) );
    pthread_mutex_unlock( &stats_lock );
 

miner.h

@@ -824,6 +824,7 @@ Options:\n\
                           qubit         Qubit\n\
                           scrypt        scrypt(1024, 1, 1) (default)\n\
                           scrypt:N      scrypt(N, 1, 1)\n\
+                          scryptn2      scrypt(1048576, 1,1)\n\
                           sha256d       Double SHA-256\n\
                           sha256q       Quad SHA-256, Pyrite (PYE)\n\
                           sha256t       Triple SHA-256, Onecoin (OC)\n\
@@ -886,10 +887,10 @@ Options:\n\
   -T, --timeout=N       timeout for long poll and stratum (default: 300 seconds)\n\
   -s, --scantime=N      upper bound on time spent scanning current work when\n\
                           long polling is unavailable, in seconds (default: 5)\n\
-      --randomize       Randomize scan range start to reduce duplicates\n\
+      --randomize       randomize scan range (deprecated)\n\
-  -f, --diff-factor=N   Divide req. difficulty by this factor (std is 1.0)\n\
+  -f, --diff-factor=N   divide req. difficulty by this factor (std is 1.0)\n\
   -m, --diff-multiplier=N Multiply difficulty by this factor (std is 1.0)\n\
-      --hash-meter      Display thread hash rates\n\
+      --hash-meter      display thread hash rates\n\
       --coinbase-addr=ADDR  payout address for solo mining\n\
       --coinbase-sig=TEXT  data to insert in the coinbase when possible\n\
       --no-longpoll     disable long polling support\n\
@@ -910,16 +911,16 @@ Options:\n\
   -B, --background      run the miner in the background\n\
       --benchmark       run in offline benchmark mode\n\
       --cpu-affinity    set process affinity to cpu core(s), mask 0x3 for cores 0 and 1\n\
-      --cpu-priority    set process priority (default: 0 idle, 2 normal to 5 highest)\n\
+      --cpu-priority    set process priority (default: 0 idle, 2 normal to 5 highest) (deprecated)\n\
   -b, --api-bind=address[:port]   IP address for the miner API, default port is 4048)\n\
-      --api-remote      Allow remote control\n\
+      --api-remote      allow remote control\n\
-      --max-temp=N      Only mine if cpu temp is less than specified value (linux)\n\
+      --max-temp=N      only mine if cpu temp is less than specified value (linux)\n\
-      --max-rate=N[KMG] Only mine if net hashrate is less than specified value\n\
+      --max-rate=N[KMG] only mine if net hashrate is less than specified value\n\
-      --max-diff=N      Only mine if net difficulty is less than specified value\n\
+      --max-diff=N      only mine if net difficulty is less than specified value\n\
   -c, --config=FILE     load a JSON-format configuration file\n\
       --data-file=FILE  path and name of data file\n\
       --verify          enable additional time consuming start up tests\n\
-      --stratum-keepalive  Prevent disconnects when difficulty is too high\n\
+      --stratum-keepalive  prevent disconnects when difficulty is too high\n\
   -V, --version         display version and CPU information and exit\n\
   -h, --help            display this help text and exit\n\
 ";

sysinfos.c

@@ -209,7 +209,7 @@ static inline void cpu_getname(char *outbuf, size_t maxsz)
 {
    memset(outbuf, 0, maxsz);
 #ifdef WIN32
-   char brand[0xC0] = { 0 };
+   char brand[256] = { 0 };
    int output[4] = { 0 }, ext;
    cpuid(0x80000000, output);
    ext = output[0];

util.c

@@ -1658,7 +1658,7 @@ static bool stratum_parse_extranonce(struct stratum_ctx *sctx, json_t *params, i
 	pthread_mutex_unlock(&sctx->work_lock);
 
    if ( !opt_quiet ) /* pool dynamic change */
-      applog( LOG_INFO, "Stratum extranonce1= %s, extranonce2 size= %d",
+      applog( LOG_INFO, "Stratum extranonce1 0x%s, extranonce2 size %d",
          xnonce1, xn2_size);
 
 	return true;

winbuild-cross.sh

@@ -16,8 +16,8 @@ export MINGW_LIB="/usr/x86_64-w64-mingw32/lib"
 export GCC_MINGW_LIB="/usr/lib/gcc/x86_64-w64-mingw32/9.3-win32"
 # used by GCC
 export LDFLAGS="-L$LOCAL_LIB/curl/lib/.libs -L$LOCAL_LIB/gmp/.libs -L$LOCAL_LIB/openssl"
-# support for Windows CPU groups, AES sometimes not included in -march
+# Support for Windows 7 CPU groups, AES sometimes not included in -march
-export DEFAULT_CFLAGS="-O3 -maes -Wall -D_WIN32_WINNT=0x0601"
+export DEFAULT_CFLAGS="-maes -O3 -Wall -D_WIN32_WINNT=0x0601"
 export DEFAULT_CFLAGS_OLD="-O3 -Wall"
 
 # make link to local gmp header file.
@@ -26,8 +26,8 @@ ln -s $LOCAL_LIB/gmp/gmp.h ./gmp.h
 # make release directory and copy selected DLLs.
 
 rm -rf release > /dev/null
-
 mkdir release
+
 cp README.txt release/
 cp README.md release/
 cp RELEASE_NOTES release/