X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Fconfigure.host;h=898db37d9a22a872a62fe6c7ae02c1955b0b66f6;hb=9887f9d815fbcfe944af6e12fc93175dba882a28;hp=e830e1b7a4e21c410537e065b70d1d191bc3c38f;hpb=51ac684e521e8008e2c076e5ca7c139b236f603c;p=gcc.git diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host index e830e1b7a4e..898db37d9a2 100644 --- a/libstdc++-v3/configure.host +++ b/libstdc++-v3/configure.host @@ -17,12 +17,12 @@ # It sets the following shell variables: # # cpu_include_dir CPU-specific directory, defaults to cpu/generic -# if cpu/host_cpu doesn't exist. This is -# used to set atomicity_include_dir. +# if cpu/host_cpu doesn't exist. This is not used +# directly, but sets the default for others. # # os_include_dir OS-specific directory, defaults to os/generic. # -# c_model the "C" header model, defaults to c_std. +# c_model the "C" header model, defaults to c_global. # # c_compatibility if "C" compatibility headers are necessary, # defaults to no. @@ -30,11 +30,35 @@ # abi_baseline_pair directory name for ABI compat testing, # defaults to host_cpu-host_os (as per config.guess) # -# fpos_include_dir directory for definition of fpos template +# abi_baseline_subdir_switch +# g++ switch to determine ABI baseline subdir for +# multilibbed targets, +# defaults to --print-multi-directory # -# atomicity_include_dir location of atomicity.h, +# abi_tweaks_dir location of cxxabi_tweaks.h, # defaults to cpu_include_dir # +# atomicity_dir location of atomicity.h, +# defaults to cpu_include_dir +# +# atomic_word_dir location of atomic_word.h +# defaults to generic. +# +# atomic_flags extra flags to pass to use atomic instructions +# defaults to nothing. +# +# cpu_defines_dir location of cpu_defines.h +# defaults to generic. +# +# cpu_opt_bits_random path name of random.h containing CPU-specific +# optimizations +# +# cpu_opt_ext_random path name of random.h containing CPU-specific +# optimizations for extensions +# +# error_constants_dir location of error_constants.h +# defaults to os/generic. +# # It possibly modifies the following variables: # # OPT_LDFLAGS extra flags to pass when linking the library, of @@ -42,7 +66,7 @@ # (defaults to empty in acinclude.m4) # # port_specific_symbol_files -# whitespace-seperated list of files containing +# whitespace-separated list of files containing # additional symbols to export from the shared # library, when symbol versioning is in use # @@ -57,20 +81,33 @@ # Try to guess a default cpu_include_dir based on the name of the CPU. We # cannot do this for os_include_dir; there are too many portable operating # systems out there. :-) -c_model=c_std +c_model=c_global c_compatibility=no -fpos_include_dir="os/generic" +atomic_word_dir=cpu/generic +atomic_flags="" +atomicity_dir="cpu/generic" +cpu_defines_dir="cpu/generic" +try_cpu=generic +abi_baseline_subdir_switch=--print-multi-directory +abi_tweaks_dir="cpu/generic" +error_constants_dir="os/generic" # HOST-SPECIFIC OVERRIDES # Set any CPU-dependent bits. -# Here we override defaults and catch more general cases due to naming -# conventions (e.g., chip_name* to catch all variants). +# Provide a way to funnel exotic flavors and prefixed/postfixed chip +# variants into the established source config/cpu/* sub-directories. # THIS TABLE IS SORTED. KEEP IT THAT WAY. case "${host_cpu}" in alpha*) try_cpu=alpha ;; + arm*) + try_cpu=arm + ;; + crisv32) + try_cpu=cris + ;; i[567]86 | x86_64) try_cpu=i486 ;; @@ -78,61 +115,112 @@ case "${host_cpu}" in try_cpu=hppa ;; mips*) - # NB: cpu/mips/atomicity.h needs MIPS II or above. - # Of course, there is no sane way to test for this, no ABI macro, - # and no consistent host_cpu name differentiation. Therefore, only - # use it where it is known to be safe, ie it runs linux (see below). - try_cpu=generic - ;; - m680[246]0) - try_cpu=m68k + try_cpu=mips ;; powerpc* | rs6000) try_cpu=powerpc ;; - s390x) - try_cpu=s390 - ;; sparc* | ultrasparc) try_cpu=sparc ;; *) if test -d ${glibcxx_srcdir}/config/cpu/${host_cpu}; then try_cpu=${host_cpu} - else - try_cpu=generic fi - ;; esac + # Now look for the file(s) usually tied to a CPU model, and make # default choices for those if they haven't been explicitly set # already. -cpu_include_dir="cpu/${try_cpu}" -atomicity_include_dir=$cpu_include_dir -abi_baseline_pair=${try_cpu}-${host_os} +cpu_include_dir=cpu/${try_cpu} + + +# Set specific CPU overrides for cpu_defines_dir. Most can just use generic. +# THIS TABLE IS SORTED. KEEP IT THAT WAY. +case "${host_cpu}" in + arm*) + cpu_defines_dir=cpu/arm + ;; + powerpc* | rs6000) + cpu_defines_dir=cpu/powerpc + ;; +esac + + +# Set specific CPU overrides for atomic_word_dir and atomic_flags. +# Most can just use generic. +# THIS TABLE IS SORTED. KEEP IT THAT WAY. +case "${host_cpu}" in + cris*) + atomic_word_dir=cpu/cris + ;; + i[4567]86 | x86_64) + atomic_flags="-march=native" + ;; + sparc* | ultrasparc) + atomic_word_dir=cpu/sparc + atomic_flags="-mcpu=v9" + ;; +esac + + +# Set specific CPU overrides for atomicity_dir. +# This can be over-ridden in GLIBCXX_ENABLE_ATOMIC_BUILTINS. +# THIS TABLE IS SORTED. KEEP IT THAT WAY. +if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/atomicity.h ; then + atomicity_dir=$cpu_include_dir +fi + + +if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/cxxabi_tweaks.h ; then + abi_tweaks_dir=$cpu_include_dir +fi + + +# Set directory with CPU-specific optimization +cpu_opt_dir=${cpu_include_dir}/opt +test -d ${glibcxx_srcdir}/config/${cpu_include_dir}/opt || +cpu_opt_dir=cpu/generic/opt +# For each header with CPU-specific optimizations check whether it +# exists in ${cpu_opt_dir}. If not, point the variable at the +# appropriate file in the generic directory. +cpu_opt_ext_random=${cpu_opt_dir}/ext/opt_random.h +test -f ${glibcxx_srcdir}/config/${cpu_opt_ext_random} || +cpu_opt_ext_random=cpu/generic/opt/ext/opt_random.h + +cpu_opt_bits_random=${cpu_opt_dir}/bits/opt_random.h +test -f ${glibcxx_srcdir}/config/${cpu_opt_ext_random} || +cpu_opt_ext_random=cpu/generic/opt/bits/opt_random.h # Set any OS-dependent bits. # Set the os_include_dir. +# Set the error_costants_dir. # Set c_model, c_compatibility here. # If atomic ops and/or numeric limits are OS-specific rather than # CPU-specifc, set those here too. # THIS TABLE IS SORTED. KEEP IT THAT WAY. case "${host_os}" in - aix4.[3456789]* | aix[56789]*) + aix[56789]*) + # Newer versions of AIX only support PowerPC architecture, so use + # atomic instructions directly. + os_include_dir="os/aix" + ;; + aix4.[3456789]*) # We set os_include_dir to os/aix only on AIX 4.3 and newer, but # os/aix/atomicity.h works on earlier versions of AIX 4.*, so we # explicitly duplicate the directory for 4.[<3]. os_include_dir="os/aix" - atomicity_include_dir="os/aix" - OPT_LDFLAGS="-Wl,-G" + atomicity_dir="os/aix" ;; aix4.*) - atomicity_include_dir="os/aix" + os_include_dir="os/generic" + atomicity_dir="os/aix" ;; aix*) - atomicity_include_dir="cpu/generic" + os_include_dir="os/generic" + atomicity_dir="cpu/generic" ;; bsd*) # Plain BSD attempts to share FreeBSD files. @@ -140,56 +228,89 @@ case "${host_os}" in ;; cygwin*) os_include_dir="os/newlib" + OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)" + ;; + darwin[4-7] | darwin[4-7].*) + # For earlier Darwin, performance is improved if libstdc++ is + # single-module. Up to at least 10.3.7, -flat_namespace is required + # for proper treatment of coalesced symbols. + OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module -Wl,-flat_namespace" + os_include_dir="os/bsd/darwin" + ;; + darwin8 | darwin8.* ) + # For 8+ compatibility is better if not -flat_namespace. + OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module" + case "${host_cpu}" in + i[34567]86 | x86_64) + OPTIMIZE_CXXFLAGS="${OPTIMIZE_CXXFLAGS} -fvisibility-inlines-hidden" + ;; + esac + os_include_dir="os/bsd/darwin" + ;; + darwin*) + # Post Darwin8, defaults should be sufficient. + os_include_dir="os/bsd/darwin" ;; *djgpp*) # leading * picks up "msdosdjgpp" os_include_dir="os/djgpp" + error_constants_dir="os/djgpp" + ;; + dragonfly*) + os_include_dir="os/bsd/dragonfly" ;; freebsd*) os_include_dir="os/bsd/freebsd" ;; - gnu* | linux*) - os_include_dir="os/gnu-linux" - fpos_include_dir=$os_include_dir + linux-musl*) + os_include_dir="os/generic" + ;; + gnu* | linux* | kfreebsd*-gnu | uclinux*) + if [ "$uclibc" = "yes" ]; then + os_include_dir="os/uclibc" + elif [ "$bionic" = "yes" ]; then + os_include_dir="os/bionic" + else + os_include_dir="os/gnu-linux" + fi ;; hpux*) os_include_dir="os/hpux" ;; - irix[1-6] | irix[1-5].* | irix6.[0-4]*) - # This is known to work on at least IRIX 5.2 and 6.3. - os_include_dir="os/irix/irix5.2" - atomicity_include_dir=$os_include_dir - ;; - irix6.5*) - os_include_dir="os/irix/irix6.5" - atomicity_include_dir=$os_include_dir - ;; mingw32*) - os_include_dir="os/mingw32" + case "$host" in + *-w64-*) + os_include_dir="os/mingw32-w64" + error_constants_dir="os/mingw32-w64" + ;; + *) + os_include_dir="os/mingw32" + error_constants_dir="os/mingw32" + ;; + esac + OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)" ;; netbsd*) os_include_dir="os/bsd/netbsd" ;; + openbsd*) + os_include_dir="os/bsd/openbsd" + ;; qnx6.[12]*) os_include_dir="os/qnx/qnx6.1" c_model=c ;; - solaris2) - # This too-vague configuration does not provide enough information - # to select a ctype include, and thus os_include_dir is a crap shoot. - echo "Please specify the full version of Solaris, ie. solaris2.9 " 1>&2 - exit 1; - ;; - solaris2.5 | solaris2.5.[0-9]) - os_include_dir="os/solaris/solaris2.5" + rtems*) + # Use libatomic if necessary and avoid libstdc++ specific atomicity support + atomicity_dir="cpu/generic/atomicity_builtins" ;; - solaris2.6) - os_include_dir="os/solaris/solaris2.6" + solaris2*) + os_include_dir="os/solaris" ;; - solaris2.[789] | solaris2.1[0-9]) - os_include_dir="os/solaris/solaris2.7" + tpf) + os_include_dir="os/tpf" ;; - windiss*) - os_include_dir="os/windiss" + vxworks) + os_include_dir="os/vxworks" ;; *) os_include_dir="os/generic" @@ -200,22 +321,61 @@ esac # Set any OS-dependent and CPU-dependent bits. # THIS TABLE IS SORTED. KEEP IT THAT WAY. case "${host}" in - mips*-*-linux*) - atomicity_include_dir="cpu/mips" - ;; - x86_64-*-linux*) - abi_baseline_pair="x86_64-linux-gnu" - ;; - alpha*-*-freebsd5*) - abi_baseline_pair="alpha-freebsd5" - ;; - i*86-*-freebsd4*) - abi_baseline_pair="i386-freebsd4" - ;; - i*86-*-freebsd5*) - abi_baseline_pair="i386-freebsd5" - ;; - sparc*-*-freebsd5*) - abi_baseline_pair="sparc-freebsd5" + *-*-linux* | *-*-uclinux*) + case "${host_cpu}" in + i[567]86) + abi_baseline_pair=i486-linux-gnu + ;; + mips64*) + abi_baseline_pair=mips64-linux-gnu + ;; + powerpc64*) + abi_baseline_pair=powerpc64-linux-gnu + ;; + s390) + abi_baseline_pair=s390-linux-gnu + ;; + s390x) + abi_baseline_pair=s390x-linux-gnu + ;; + sparc64) + abi_baseline_pair=sparc64-linux-gnu + ;; + x86_64) + abi_baseline_pair=x86_64-linux-gnu + ;; + *) + if test $try_cpu = generic; then + try_abi_cpu=$host_cpu + else + try_abi_cpu=$try_cpu + fi + if test -d ${glibcxx_srcdir}/config/abi/post/${try_abi_cpu}-linux-gnu; then + abi_baseline_pair=${try_abi_cpu}-linux-gnu + fi + esac + case "${host}" in + arm*-*-linux-* | arm*-*-uclinuxfdpiceabi) + port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver" + ;; + esac + ;; + arm*-*-freebsd*) + port_specific_symbol_files="\$(srcdir)/../config/os/gnu-linux/arm-eabi-extra.ver" + ;; + powerpc*-*-darwin*) + port_specific_symbol_files="\$(srcdir)/../config/os/bsd/darwin/ppc-extra.ver" + ;; + *-*-solaris2*) + abi_baseline_pair=solaris + case "${host_cpu}" in + i?86 | x86_64) + abi_baseline_pair=i386-${abi_baseline_pair} + ;; + sparc*) + abi_baseline_pair=sparc-${abi_baseline_pair} + ;; + esac + abi_baseline_subdir_switch=--print-multi-os-directory ;; esac