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. 14# This does require that the library be present during process 15# startup, so mark the library as not to be dlopened. 16if test $have_tls = yes ; then 17 case "${target}" in 18 19 *-*-linux*) 20 XCFLAGS="${XCFLAGS} -ftls-model=initial-exec" 21 XLDFLAGS="${XLDFLAGS} -Wl,-z,nodlopen" 22 ;; 23 esac 24fi 25 26# Since we require POSIX threads, assume a POSIX system by default. 27config_path="posix" 28 29# Check for futex enabled all at once. 30if test $enable_linux_futex = yes; then 31 case "${target}" in 32 33 alpha*-*-linux*) 34 config_path="linux/alpha linux posix" 35 ;; 36 37 ia64*-*-linux*) 38 config_path="linux/ia64 linux posix" 39 ;; 40 41 powerpc*-*-linux*) 42 config_path="linux/powerpc linux posix" 43 ;; 44 45 s390*-*-linux*) 46 config_path="linux/s390 linux posix" 47 ;; 48 49 # Note that bare i386 is not included here. We need cmpxchg. 50 i[456]86-*-linux*) 51 config_path="linux/x86 linux posix" 52 if test -z "$with_arch"; then 53 XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" 54 fi 55 ;; 56 57 # Similar jiggery-pokery for x86_64 multilibs, except here we 58 # can't rely on the --with-arch configure option, since that 59 # applies to the 64-bit side. 60 x86_64-*-linux*) 61 config_path="linux/x86 linux posix" 62 case " ${CC} ${CFLAGS} " in 63 *" -m32 "*) 64 XCFLAGS="${XCFLAGS} -march=i486 -mtune=i686" 65 ;; 66 esac 67 ;; 68 69 # Note that sparcv7 and sparcv8 is not included here. We need cas. 70 sparcv9-*-linux* | sparc64-*-linux*) 71 echo "int i;" > conftestx.c 72 if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then 73 config_path="linux/sparc linux posix" 74 case "`/usr/bin/file conftestx.o`" in 75 *32-bit*) 76 case " ${CC} ${CFLAGS}" in 77 *" -mcpu=ultrasparc"*) 78 ;; 79 *) 80 XCFLAGS="${XCFLAGS} -mcpu=v9" 81 ;; 82 esac 83 ;; 84 esac 85 fi 86 rm -f conftestx.c conftestx.o 87 ;; 88 esac 89fi 90 91# Other system configury 92case "${target}" in 93 94 *-*-hpux11*) 95 # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la 96 XLDFLAGS="${XLDFLAGS} -lrt" 97 ;; 98 99 *-*-mingw32*) 100 config_path="mingw32 posix" 101 ;; 102 103 *-*-solaris2.[56]*) 104 config_path="posix95 posix" 105 XLDFLAGS="${XLDFLAGS} -lposix4" 106 ;; 107 108 *) 109 ;; 110 111esac 112