libgomp/configure.tgt

   1 # This is the target specific configuration file.  This is invoked by the
   2 # autoconf generated configure script.  Putting it in a separate shell file
   3 # lets us skip running autoconf when modifying target specific information.
   4
   5 # This file switches on the shell variable ${target}, and sets the
   6 # following shell variables:
   7 #  config_path          An ordered list of directories to search for
   8 #                       sources and headers.  This is relative to the
   9 #                       config subdirectory of the source tree.
  10 #  XCFLAGS              Add extra compile flags to use.
  11 #  XLDFLAGS             Add extra link flags to use.
  12 #  tmake_file           A list of machine-description-specific
  13 #                       makefile fragments.
  14
  15 # Optimize TLS usage by avoiding the overhead of dynamic allocation.
  16 if test $gcc_cv_have_tls = yes ; then
  17   case "${target}" in
  18
  19     *-*-k*bsd*-gnu*)
  20         ;;
  21
  22     *-*-musl*)
  23         ;;
  24
  25     *-*-linux* | *-*-gnu*)
  26         XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
  27         ;;
  28
  29     *-*-rtems*)
  30         XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
  31         ;;
  32   esac
  33 fi
  34
  35 tmake_file=
  36 # Since we require POSIX threads, assume a POSIX system by default.
  37 config_path="posix"
  38
  39 # Check for futex enabled all at once.
  40 if test x$enable_linux_futex = xyes; then
  41   case "${target}" in
  42
  43     aarch64*-*-linux*)
  44         config_path="linux posix"
  45         ;;
  46
  47     alpha*-*-linux*)
  48         config_path="linux/alpha linux posix"
  49         ;;
  50
  51     arm*-*-linux*)
  52         config_path="linux posix"
  53         ;;
  54
  55     ia64*-*-linux*)
  56         config_path="linux/ia64 linux posix"
  57         ;;
  58
  59     loongarch*-*-linux*)
  60         config_path="linux posix"
  61         ;;
  62
  63     mips*-*-linux*)
  64         config_path="linux/mips linux posix"
  65         ;;
  66
  67     powerpc*-*-linux*)
  68         config_path="linux/powerpc linux posix"
  69         ;;
  70
  71     riscv64*-*-linux*)
  72         config_path="linux posix"
  73         ;;
  74
  75     s390*-*-linux*)
  76         config_path="linux/s390 linux posix"
  77         ;;
  78
  79     tile*-*-linux*)
  80         config_path="linux/tile linux posix"
  81         ;;
  82
  83     # Note that bare i386 is not included here.  We need cmpxchg.
  84     i[456]86-*-linux* | x86_64-*-linux*)
  85         config_path="linux/x86 linux posix"
  86         cat > conftestx.c <<EOF
  87 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
  88 #error need -march=i486
  89 #endif
  90 EOF
  91         if ${CC} ${CFLAGS} -E conftestx.c > /dev/null 2>&1; then
  92           :
  93         else
  94           if test "${target_cpu}" = x86_64; then
  95             XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
  96           else
  97             XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
  98           fi
  99         fi
 100         rm -f conftestx.c
 101         ;;
 102
 103     # Note that sparcv7 and sparcv8 is not included here.  We need cas.
 104     sparcv9-*-linux* | sparc64-*-linux*)
 105         echo "int i;" > conftestx.c
 106         if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
 107           config_path="linux/sparc linux posix"
 108           case "`/usr/bin/file conftestx.o`" in
 109             *32-bit*)
 110               case " ${CC} ${CFLAGS}" in
 111                 *" -mcpu=ultrasparc"*)
 112                   ;;
 113                 *)
 114                   XCFLAGS="${XCFLAGS} -mcpu=v9"
 115                   ;;
 116               esac
 117               ;;
 118           esac
 119         fi
 120         rm -f conftestx.c conftestx.o
 121         ;;
 122   esac
 123 fi
 124
 125 # Other system configury
 126 case "${target}" in
 127
 128   *-*-hpux*)
 129         config_path="hpux posix"
 130         case "${target}" in
 131           *-*-hpux11*)
 132              # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
 133              XLDFLAGS="${XLDFLAGS} -lrt"
 134              ;;
 135         esac
 136         case "${target}" in
 137           hppa[12]*-*-hpux*)
 138             # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
 139             XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
 140             ;;
 141         esac
 142         ;;
 143
 144   *-*-mingw32*)
 145         config_path="mingw32 posix"
 146         ;;
 147
 148   *-*-darwin*)
 149         config_path="bsd darwin posix"
 150         ;;
 151
 152   *-*-freebsd*)
 153         # Need to link with -lpthread so libgomp.so is self-contained.
 154         XLDFLAGS="${XLDFLAGS} -lpthread"
 155         ;;
 156
 157   *-*-aix*)
 158         config_path="posix"
 159         # Need to link with -lpthread so libgomp.so is self-contained.
 160         XLDFLAGS="${XLDFLAGS} -lpthread"
 161         # AIX needs -frandom-seed for bootstrap compare.
 162         XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
 163         # Create AIX-style "FAT" libraries.
 164         tmake_file="t-aix"
 165         ;;
 166
 167   nvptx*-*-*)
 168         config_path="nvptx accel"
 169         ;;
 170
 171   *-*-rtems*)
 172         # Use self-contained synchronization objects if provided by Newlib
 173         if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
 174             config_path="rtems posix"
 175         fi
 176         ;;
 177
 178   amdgcn*-*-*)
 179         config_path="gcn accel"
 180
 181         #TODO PR101484
 182         XCFLAGS="$XCFLAGS -Wno-error=array-bounds"
 183         ;;
 184
 185   *)
 186         ;;
 187
 188 esac