sysdeps/s390/configure

   1 # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
   2  # Local configure fragment for sysdeps/s390.
   3
   4 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_tbegin" >&5
   5 $as_echo_n "checking for __builtin_tbegin... " >&6; }
   6 if ${libc_cv_gcc_builtin_tbegin+:} false; then :
   7   $as_echo_n "(cached) " >&6
   8 else
   9   cat > conftest.c <<\EOF
  10 #include <htmintrin.h>
  11 void testtransaction ()
  12 {
  13   if (__builtin_tbegin (0) == _HTM_TBEGIN_STARTED)
  14     {
  15       __builtin_tend ();
  16     }
  17 }
  18 EOF
  19 if { ac_try='${CC-cc} -mhtm -O2 -S conftest.c -o - | grep -w tbegin > /dev/null'
  20   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  21   (eval $ac_try) 2>&5
  22   ac_status=$?
  23   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  24   test $ac_status = 0; }; } ;
  25 then
  26   libc_cv_gcc_builtin_tbegin=yes
  27 else
  28   libc_cv_gcc_builtin_tbegin=no
  29 fi
  30 rm -f conftest*
  31 fi
  32 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_builtin_tbegin" >&5
  33 $as_echo "$libc_cv_gcc_builtin_tbegin" >&6; }
  34
  35 if test "$libc_cv_gcc_builtin_tbegin" = no ; then
  36    critic_missing="$critic_missing The used GCC has no support for __builtin_tbegin, which is needed for lock-elision on target S390."
  37 fi
  38
  39
  40 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector instruction support" >&5
  41 $as_echo_n "checking for S390 vector instruction support... " >&6; }
  42 if ${libc_cv_asm_s390_vx+:} false; then :
  43   $as_echo_n "(cached) " >&6
  44 else
  45   cat > conftest.c <<\EOF
  46 void testvecinsn ()
  47 {
  48     __asm__ (".machine \"z13\" \n\t"
  49              ".machinemode \"zarch_nohighgprs\" \n\t"
  50              "vistrbs %%v16,%%v17 \n\t"
  51              "locghie %%r1,0" : :);
  52 }
  53 EOF
  54 if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
  55   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  56   (eval $ac_try) 2>&5
  57   ac_status=$?
  58   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  59   test $ac_status = 0; }; } ;
  60 then
  61   libc_cv_asm_s390_vx=yes
  62 else
  63   libc_cv_asm_s390_vx=no
  64 fi
  65 rm -f conftest*
  66 fi
  67 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_vx" >&5
  68 $as_echo "$libc_cv_asm_s390_vx" >&6; }
  69
  70 if test "$libc_cv_asm_s390_vx" = yes ;
  71 then
  72   $as_echo "#define HAVE_S390_VX_ASM_SUPPORT 1" >>confdefs.h
  73
  74 else
  75   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Use binutils with vector-support in order to use optimized implementations." >&5
  76 $as_echo "$as_me: WARNING: Use binutils with vector-support in order to use optimized implementations." >&2;}
  77 fi
  78
  79 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 vector support in gcc" >&5
  80 $as_echo_n "checking for S390 vector support in gcc... " >&6; }
  81 if ${libc_cv_gcc_s390_vx+:} false; then :
  82   $as_echo_n "(cached) " >&6
  83 else
  84   cat > conftest.c <<\EOF
  85 void testvecclobber ()
  86 {
  87   __asm__ ("" : : : "v16");
  88 }
  89 EOF
  90 if { ac_try='${CC-cc} --shared conftest.c -o conftest.o &> /dev/null'
  91   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
  92   (eval $ac_try) 2>&5
  93   ac_status=$?
  94   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  95   test $ac_status = 0; }; } ;
  96 then
  97   libc_cv_gcc_s390_vx=yes
  98 else
  99   libc_cv_gcc_s390_vx=no
 100 fi
 101 rm -f conftest*
 102 fi
 103 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_s390_vx" >&5
 104 $as_echo "$libc_cv_gcc_s390_vx" >&6; }
 105
 106 if test "$libc_cv_gcc_s390_vx" = yes ;
 107 then
 108   $as_echo "#define HAVE_S390_VX_GCC_SUPPORT 1" >>confdefs.h
 109
 110 fi
 111
 112 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support" >&5
 113 $as_echo_n "checking for S390 arch13 zarch instruction support... " >&6; }
 114 if ${libc_cv_asm_s390_arch13+:} false; then :
 115   $as_echo_n "(cached) " >&6
 116 else
 117   cat > conftest.c <<\EOF
 118 void testinsn (char *buf)
 119 {
 120     __asm__ (".machine \"arch13\" \n\t"
 121              ".machinemode \"zarch_nohighgprs\" \n\t"
 122              "lghi %%r0,16 \n\t"
 123              "mvcrl 0(%0),32(%0) \n\t"
 124              "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
 125              : : "a" (buf) : "memory", "r0");
 126 }
 127 EOF
 128 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
 129                         -o conftest.o &> /dev/null'
 130   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
 131   (eval $ac_try) 2>&5
 132   ac_status=$?
 133   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 134   test $ac_status = 0; }; } ;
 135 then
 136   libc_cv_asm_s390_arch13=yes
 137 else
 138   libc_cv_asm_s390_arch13=no
 139 fi
 140 rm -f conftest*
 141 fi
 142 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_arch13" >&5
 143 $as_echo "$libc_cv_asm_s390_arch13" >&6; }
 144 if test "$libc_cv_asm_s390_arch13" = yes ;
 145 then
 146   $as_echo "#define HAVE_S390_ARCH13_ASM_SUPPORT 1" >>confdefs.h
 147
 148 fi
 149
 150
 151 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z10 zarch instruction support as default" >&5
 152 $as_echo_n "checking for S390 z10 zarch instruction support as default... " >&6; }
 153 if ${libc_cv_asm_s390_min_z10_zarch+:} false; then :
 154   $as_echo_n "(cached) " >&6
 155 else
 156   cat > conftest.c <<\EOF
 157 void testinsn (void *a, void *b, int n)
 158 {
 159     __asm__ ("exrl %2,1f \n\t"
 160              "j 2f \n\t"
 161              "1: mvc 0(1,%0),0(%1) \n\t"
 162              "2:"
 163              : : "a" (a), "a" (b), "d" (n)
 164              : "memory", "cc");
 165 }
 166 EOF
 167 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
 168                         -o conftest.o &> /dev/null'
 169   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
 170   (eval $ac_try) 2>&5
 171   ac_status=$?
 172   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 173   test $ac_status = 0; }; } ;
 174 then
 175   libc_cv_asm_s390_min_z10_zarch=yes
 176 else
 177   libc_cv_asm_s390_min_z10_zarch=no
 178 fi
 179 rm -f conftest*
 180 fi
 181 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z10_zarch" >&5
 182 $as_echo "$libc_cv_asm_s390_min_z10_zarch" >&6; }
 183
 184 if test "$libc_cv_asm_s390_min_z10_zarch" = yes ;
 185 then
 186   $as_echo "#define HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT 1" >>confdefs.h
 187
 188 fi
 189
 190 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z196 zarch instruction support as default" >&5
 191 $as_echo_n "checking for S390 z196 zarch instruction support as default... " >&6; }
 192 if ${libc_cv_asm_s390_min_z196_zarch+:} false; then :
 193   $as_echo_n "(cached) " >&6
 194 else
 195   cat > conftest.c <<\EOF
 196 float testinsn (double e)
 197 {
 198     float d;
 199     __asm__ ("ledbra %0,5,%1,4" : "=f" (d) : "f" (e) );
 200     return d;
 201 }
 202 EOF
 203 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
 204                         -o conftest.o &> /dev/null'
 205   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
 206   (eval $ac_try) 2>&5
 207   ac_status=$?
 208   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 209   test $ac_status = 0; }; } ;
 210 then
 211   libc_cv_asm_s390_min_z196_zarch=yes
 212 else
 213   libc_cv_asm_s390_min_z196_zarch=no
 214 fi
 215 rm -f conftest*
 216 fi
 217 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z196_zarch" >&5
 218 $as_echo "$libc_cv_asm_s390_min_z196_zarch" >&6; }
 219
 220 if test "$libc_cv_asm_s390_min_z196_zarch" = yes ;
 221 then
 222   $as_echo "#define HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT 1" >>confdefs.h
 223
 224 fi
 225
 226 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z13 zarch instruction support as default" >&5
 227 $as_echo_n "checking for S390 z13 zarch instruction support as default... " >&6; }
 228 if ${libc_cv_asm_s390_min_z13_zarch+:} false; then :
 229   $as_echo_n "(cached) " >&6
 230 else
 231   cat > conftest.c <<\EOF
 232 int testinsn (void)
 233 {
 234     int i;
 235     __asm__ ("vl %%v16,0(%%r15)\n\t"
 236              "vlgvf %0,%%v16,0"
 237              : "=d" (i) : : "memory", "v16");
 238     return i;
 239 }
 240 EOF
 241 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
 242                         -o conftest.o &> /dev/null'
 243   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
 244   (eval $ac_try) 2>&5
 245   ac_status=$?
 246   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 247   test $ac_status = 0; }; } ;
 248 then
 249   libc_cv_asm_s390_min_z13_zarch=yes
 250 else
 251   libc_cv_asm_s390_min_z13_zarch=no
 252 fi
 253 rm -f conftest*
 254 fi
 255 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z13_zarch" >&5
 256 $as_echo "$libc_cv_asm_s390_min_z13_zarch" >&6; }
 257
 258 if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
 259 then
 260   $as_echo "#define HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT 1" >>confdefs.h
 261
 262 fi
 263
 264 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 arch13 zarch instruction support as default" >&5
 265 $as_echo_n "checking for S390 arch13 zarch instruction support as default... " >&6; }
 266 if ${libc_cv_asm_s390_min_arch13_zarch+:} false; then :
 267   $as_echo_n "(cached) " >&6
 268 else
 269   cat > conftest.c <<\EOF
 270 void testinsn (char *buf)
 271 {
 272     __asm__ ("lghi %%r0,16 \n\t"
 273              "mvcrl 0(%0),32(%0) \n\t"
 274              "vstrs %%v20,%%v20,%%v20,%%v20,0,2"
 275              : : "a" (buf) : "memory", "r0");
 276 }
 277 EOF
 278 if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
 279                         -o conftest.o &> /dev/null'
 280   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
 281   (eval $ac_try) 2>&5
 282   ac_status=$?
 283   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 284   test $ac_status = 0; }; } ;
 285 then
 286   libc_cv_asm_s390_min_arch13_zarch=yes
 287 else
 288   libc_cv_asm_s390_min_arch13_zarch=no
 289 fi
 290 rm -f conftest*
 291 fi
 292 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_arch13_zarch" >&5
 293 $as_echo "$libc_cv_asm_s390_min_arch13_zarch" >&6; }
 294 if test "$libc_cv_asm_s390_min_arch13_zarch" = yes ;
 295 then
 296   $as_echo "#define HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT 1" >>confdefs.h
 297
 298 fi
 299
 300
 301
 302 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
 303 $as_echo_n "checking if $CC is sufficient to build libc on s390x... " >&6; }
 304 if ${libc_cv_compiler_ok_on_s390x+:} false; then :
 305   $as_echo_n "(cached) " >&6
 306 else
 307
 308 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 309 /* end confdefs.h.  */
 310
 311 int
 312 main ()
 313 {
 314
 315 #if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
 316 #error insufficient compiler for building on s390x
 317 #endif
 318
 319   ;
 320   return 0;
 321 }
 322 _ACEOF
 323 if ac_fn_c_try_cpp "$LINENO"; then :
 324   libc_cv_compiler_ok_on_s390x=yes
 325 else
 326   libc_cv_compiler_ok_on_s390x=no
 327 fi
 328 rm -f conftest.err conftest.i conftest.$ac_ext
 329 fi
 330 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
 331 $as_echo "$libc_cv_compiler_ok_on_s390x" >&6; }
 332 if test "$libc_cv_compiler_ok_on_s390x" != yes; then
 333    critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
 334 fi
 335
 336 test -n "$critic_missing" && as_fn_error $? "
 337 *** $critic_missing" "$LINENO" 5