| # This is the target specific configuration file. This is invoked by the |
| # autoconf generated configure script. Putting it in a separate shell file |
| # lets us skip running autoconf when modifying target specific information. |
| |
| # This file switches on the shell variable ${target}, and sets the |
| # following shell variables: |
| # config_path An ordered list of directories to search for |
| # sources and headers. This is relative to the |
| # config subdirectory of the source tree. |
| # XCFLAGS Add extra compile flags to use. |
| # XLDFLAGS Add extra link flags to use. |
| |
| # Optimize TLS usage by avoiding the overhead of dynamic allocation. |
| if test $gcc_cv_have_tls = yes ; then |
| case "${target}" in |
| |
| *-*-k*bsd*-gnu*) |
| ;; |
| |
| *-*-linux* | *-*-gnu*) |
| XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS" |
| ;; |
| |
| *-*-rtems*) |
| XCFLAGS="${XCFLAGS} -ftls-model=local-exec" |
| ;; |
| esac |
| fi |
| |
| # Since we require POSIX threads, assume a POSIX system by default. |
| config_path="posix" |
| |
| # Check for futex enabled all at once. |
| if test x$enable_linux_futex = xyes; then |
| case "${target}" in |
| |
| aarch64*-*-linux*) |
| config_path="linux posix" |
| ;; |
| |
| alpha*-*-linux*) |
| config_path="linux/alpha linux posix" |
| ;; |
| |
| arm*-*-linux*) |
| config_path="linux posix" |
| ;; |
| |
| ia64*-*-linux*) |
| config_path="linux/ia64 linux posix" |
| ;; |
| |
| mips*-*-linux*) |
| config_path="linux/mips linux posix" |
| ;; |
| |
| powerpc*-*-linux*) |
| config_path="linux/powerpc linux posix" |
| ;; |
| |
| s390*-*-linux*) |
| config_path="linux/s390 linux posix" |
| ;; |
| |
| tile*-*-linux*) |
| config_path="linux/tile linux posix" |
| ;; |
| |
| # Note that bare i386 is not included here. We need cmpxchg. |
| i[456]86-*-linux*) |
| config_path="linux/x86 linux posix" |
| case " ${CC} ${CFLAGS} " in |
| *" -m64 "*|*" -mx32 "*) |
| ;; |
| *) |
| if test -z "$with_arch"; then |
| XCFLAGS="${XCFLAGS} -march=i486 -mtune=${target_cpu}" |
| fi |
| esac |
| ;; |
| |
| # Similar jiggery-pokery for x86_64 multilibs, except here we |
| # can't rely on the --with-arch configure option, since that |
| # applies to the 64-bit side. |
| x86_64-*-linux*) |
| config_path="linux/x86 linux posix" |
| case " ${CC} ${CFLAGS} " in |
| *" -m32 "*) |
| XCFLAGS="${XCFLAGS} -march=i486 -mtune=generic" |
| ;; |
| esac |
| ;; |
| |
| # Note that sparcv7 and sparcv8 is not included here. We need cas. |
| sparcv9-*-linux* | sparc64-*-linux*) |
| echo "int i;" > conftestx.c |
| if ${CC} ${CFLAGS} -c -o conftestx.o conftestx.c > /dev/null 2>&1; then |
| config_path="linux/sparc linux posix" |
| case "`/usr/bin/file conftestx.o`" in |
| *32-bit*) |
| case " ${CC} ${CFLAGS}" in |
| *" -mcpu=ultrasparc"*) |
| ;; |
| *) |
| XCFLAGS="${XCFLAGS} -mcpu=v9" |
| ;; |
| esac |
| ;; |
| esac |
| fi |
| rm -f conftestx.c conftestx.o |
| ;; |
| esac |
| fi |
| |
| # Other system configury |
| case "${target}" in |
| |
| *-*-hpux*) |
| config_path="hpux posix" |
| case "${target}" in |
| *-*-hpux11*) |
| # HPUX v11.x requires -lrt to resolve sem_init in libgomp.la |
| XLDFLAGS="${XLDFLAGS} -lrt" |
| ;; |
| esac |
| case "${target}" in |
| hppa[12]*-*-hpux*) |
| # PA 32 HP-UX needs -frandom-seed for bootstrap compare. |
| XCFLAGS="${XCFLAGS} -frandom-seed=fixed-seed" |
| ;; |
| esac |
| ;; |
| |
| *-*-mingw32*) |
| config_path="mingw32 posix" |
| ;; |
| |
| *-*-darwin*) |
| config_path="bsd darwin posix" |
| ;; |
| |
| *-*-freebsd*) |
| # Need to link with -lpthread so libgomp.so is self-contained. |
| XLDFLAGS="${XLDFLAGS} -lpthread" |
| ;; |
| |
| *-*-aix*) |
| config_path="posix" |
| # Need to link with -lpthread so libgomp.so is self-contained. |
| XLDFLAGS="${XLDFLAGS} -lpthread" |
| # AIX needs -frandom-seed for bootstrap compare. |
| XCFLAGS="${XCFLAGS} -frandom-seed=\$@" |
| ;; |
| |
| nvptx*-*-*) |
| config_path="nvptx" |
| ;; |
| |
| *-*-rtems*) |
| # Use self-contained synchronization objects if provided by Newlib |
| if test "x$ac_cv_type_struct__Mutex_Control" = xyes ; then |
| config_path="rtems posix" |
| fi |
| ;; |
| |
| *) |
| ;; |
| |
| esac |