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. 16if 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 33fi 34 35tmake_file= 36# Since we require POSIX threads, assume a POSIX system by default. 37config_path="posix" 38 39# Check for futex enabled all at once. 40if 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 90EOF 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 123fi 124 125# Other system configury 126case "${target}" in 127 128 *-*-hpux*) 129 config_path="hpux posix" 130 case "${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 188esac 189