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 13# Optimize TLS usage by avoiding the overhead of dynamic allocation. 14if test $gcc_cv_have_tls = yes ; then 15 case "${target}" in 16 17 *-*-linux*) 18 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec" 19 ;; 20 esac 21fi 22 23# Since we require POSIX threads, assume a POSIX system by default. 24config_path="posix" 25 26# Check for futex enabled all at once. 27if test $enable_linux_futex = yes; then 28 case "${target}" in 29 30 alpha*-*-linux*) 31 config_path="linux/alpha linux posix" 32 ;; 33 34 ia64*-*-linux*) 35 config_path="linux/ia64 linux posix" 36 ;; 37 38 mips*-*-linux*) 39 config_path="linux/mips linux posix" 40 ;; 41 42 powerpc*-*-linux*) 43 config_path="linux/powerpc linux posix" 44 ;; 45 46 s390*-*-linux*) 47 config_path="linux/s390 linux posix" 48 ;; 49 50 # Note that bare i386 is not included here. We need cmpxchg. 51 i[456]86-*-linux*) 52 config_path="linux/x86 linux posix" 53 case " ${CC} ${CFLAGS} " in 54 *" -m64 "*) 55 ;; 56 *) 57 if test -z "$with_arch"; then 58 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" 59 fi 60 esac 61 ;; 62 63 # Similar jiggery-pokery for x86_64 multilibs, except here we 64 # can't rely on the --with-arch configure option, since that 65 # applies to the 64-bit side. 66 x86_64-*-linux*) 67 config_path="linux/x86 linux posix" 68 case " ${CC} ${CFLAGS} " in 69 *" -m32 "*) 70 XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686" 71 ;; 72 esac 73 ;; 74 75 # Note that sparcv7 and sparcv8 is not included here. We need cas. 76 sparcv9-*-linux* | sparc64-*-linux*) 77 echo "int i;" > conftestx.c 78 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then 79 config_path="linux/sparc linux posix" 80 case "`/usr/bin/file conftestx.o`" in 81 *32-bit*) 82 case " ${CC} ${CFLAGS}" in 83 *" -mcpu=ultrasparc"*) 84 ;; 85 *) 86 XCFLAGS="${XCFLAGS} -mcpu=v9" 87 ;; 88 esac 89 ;; 90 esac 91 fi 92 rm -f conftestx.c conftestx.o 93 ;; 94 esac 95fi 96 97# Other system configury 98case "${target}" in 99 100 *-*-hpux*) 101 case "${target}" in 102 *-*-hpux11*) 103 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la 104 XLDFLAGS="${XLDFLAGS} -lrt" 105 ;; 106 esac 107 case "${target}" in 108 hppa[12]*-*-hpux*) 109 # PA 32 HP-UX needs -frandom-seed for bootstrap compare. 110 XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed" 111 ;; 112 esac 113 ;; 114 115 *-*-mingw32*) 116 config_path="mingw32 posix" 117 ;; 118 119 *-*-solaris2.[56]*) 120 config_path="posix95 posix" 121 XLDFLAGS="${XLDFLAGS} -lposix4" 122 ;; 123 124 *-*-darwin*) 125 config_path="bsd posix" 126 ;; 127 128 mips-sgi-irix6*) 129 # Need to link with -lpthread so libgomp.so is self-contained. 130 XLDFLAGS="${XLDFLAGS} -lpthread" 131 ;; 132 *) 133 ;; 134 135esac 136