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 powerpc*-*-linux*) 39 config_path="linux/powerpc linux posix" 40 ;; 41 42 s390*-*-linux*) 43 config_path="linux/s390 linux posix" 44 ;; 45 46 # Note that bare i386 is not included here. We need cmpxchg. 47 i[456]86-*-linux*) 48 config_path="linux/x86 linux posix" 49 case " ${CC} ${CFLAGS} " in 50 *" -m64 "*) 51 ;; 52 *) 53 if test -z "$with_arch"; then 54 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" 55 fi 56 esac 57 ;; 58 59 # Similar jiggery-pokery for x86_64 multilibs, except here we 60 # can't rely on the --with-arch configure option, since that 61 # applies to the 64-bit side. 62 x86_64-*-linux*) 63 config_path="linux/x86 linux posix" 64 case " ${CC} ${CFLAGS} " in 65 *" -m32 "*) 66 XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686" 67 ;; 68 esac 69 ;; 70 71 # Note that sparcv7 and sparcv8 is not included here. We need cas. 72 sparcv9-*-linux* | sparc64-*-linux*) 73 echo "int i;" > conftestx.c 74 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then 75 config_path="linux/sparc linux posix" 76 case "`/usr/bin/file conftestx.o`" in 77 *32-bit*) 78 case " ${CC} ${CFLAGS}" in 79 *" -mcpu=ultrasparc"*) 80 ;; 81 *) 82 XCFLAGS="${XCFLAGS} -mcpu=v9" 83 ;; 84 esac 85 ;; 86 esac 87 fi 88 rm -f conftestx.c conftestx.o 89 ;; 90 esac 91fi 92 93# Other system configury 94case "${target}" in 95 96 *-*-hpux11*) 97 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la 98 XLDFLAGS="${XLDFLAGS} -lrt" 99 ;; 100 101 *-*-mingw32*) 102 config_path="mingw32 posix" 103 ;; 104 105 *-*-solaris2.[56]*) 106 config_path="posix95 posix" 107 XLDFLAGS="${XLDFLAGS} -lposix4" 108 ;; 109 110 *-*-darwin*) 111 config_path="bsd posix" 112 ;; 113 114 *) 115 ;; 116 117esac 118