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     mips*-*-linux*)
  60         config_path="linux/mips linux posix"
  61         ;;
  62
  63     powerpc*-*-linux*)
  64         config_path="linux/powerpc linux posix"
  65         ;;
  66
  67     s390*-*-linux*)
  68         config_path="linux/s390 linux posix"
  69         ;;
  70
  71     tile*-*-linux*)
  72         config_path="linux/tile linux posix"
  73         ;;
  74
  75     # Note that bare i386 is not included here.  We need cmpxchg.
  76     i[456]86-*-linux*)
  77         config_path="linux/x86 linux posix"
  78         case " ${CC} ${CFLAGS} " in
  79           *" -m64 "*|*" -mx32 "*)
  80             ;;
  81           *)
  82             if test -z "$with_arch"; then
  83               XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}"
  84             fi
  85         esac
  86         ;;
  87
  88     # Similar jiggery-pokery for x86_64 multilibs, except here we
  89     # can't rely on the --with-arch configure option, since that
  90     # applies to the 64-bit side.
  91     x86_64-*-linux*)
  92         config_path="linux/x86 linux posix"
  93         case " ${CC} ${CFLAGS} " in
  94           *" -m32 "*)
  95             XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic"
  96             ;;
  97         esac
  98         ;;
  99
 100     # Note that sparcv7 and sparcv8 is not included here.  We need cas.
 101     sparcv9-*-linux* | sparc64-*-linux*)
 102         echo "int i;" > conftestx.c
 103         if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then
 104           config_path="linux/sparc linux posix"
 105           case "`/usr/bin/file conftestx.o`" in
 106             *32-bit*)
 107               case " ${CC} ${CFLAGS}" in
 108                 *" -mcpu=ultrasparc"*)
 109                   ;;
 110                 *)
 111                   XCFLAGS="${XCFLAGS} -mcpu=v9"
 112                   ;;
 113               esac
 114               ;;
 115           esac
 116         fi
 117         rm -f conftestx.c conftestx.o
 118         ;;
 119   esac
 120 fi
 121
 122 # Other system configury
 123 case "${target}" in
 124
 125   *-*-hpux*)
 126         config_path="hpux posix"
 127         case "${target}" in
 128           *-*-hpux11*)
 129              # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la
 130              XLDFLAGS="${XLDFLAGS} -lrt"
 131              ;;
 132         esac
 133         case "${target}" in
 134           hppa[12]*-*-hpux*)
 135             # PA 32 HP-UX needs -frandom-seed for bootstrap compare.
 136             XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed"
 137             ;;
 138         esac
 139         ;;
 140
 141   *-*-mingw32*)
 142         config_path="mingw32 posix"
 143         ;;
 144
 145   *-*-darwin*)
 146         config_path="bsd darwin posix"
 147         ;;
 148
 149   *-*-freebsd*)
 150         # Need to link with -lpthread so libgomp.so is self-contained.
 151         XLDFLAGS="${XLDFLAGS} -lpthread"
 152         ;;
 153
 154   *-*-aix*)
 155         config_path="posix"
 156         # Need to link with -lpthread so libgomp.so is self-contained.
 157         XLDFLAGS="${XLDFLAGS} -lpthread"
 158         # AIX needs -frandom-seed for bootstrap compare.
 159         XCFLAGS="${XCFLAGS} -frandom-seed=\$@"
 160         # Create AIX-style "FAT" libraries.
 161         tmake_file="t-aix"
 162         ;;
 163
 164   nvptx*-*-*)
 165         config_path="nvptx accel"
 166         ;;
 167
 168   *-*-rtems*)
 169         # Use self-contained synchronization objects if provided by Newlib
 170         if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then
 171             config_path="rtems posix"
 172         fi
 173         ;;
 174
 175   amdgcn*-*-*)
 176         config_path="gcn accel"
 177         ;;
 178
 179   *)
 180         ;;
 181
 182 esac