# 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.
# (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
#
hppa*)
try_cpu=hppa
;;
- mep*)
- EXTRA_CXX_FLAGS=-mm
- try_cpu=generic
- ;;
mips*)
try_cpu=mips
;;
# Set specific CPU overrides for cpu_defines_dir. Most can just use generic.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host_cpu}" in
+ arm*)
+ cpu_defines_dir=cpu/arm
+ ;;
powerpc* | rs6000)
cpu_defines_dir=cpu/powerpc
;;
# Most can just use generic.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host_cpu}" in
- alpha*)
- atomic_word_dir=cpu/alpha
- ;;
cris*)
atomic_word_dir=cpu/cris
;;
- ia64)
- atomic_word_dir=cpu/ia64
- ;;
i[4567]86 | x86_64)
atomic_flags="-march=native"
;;
- powerpc* | rs6000)
- atomic_word_dir=cpu/powerpc
- ;;
sparc* | ultrasparc)
atomic_word_dir=cpu/sparc
atomic_flags="-mcpu=v9"
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.
# CPU-specifc, set those here too.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host_os}" in
- aix4.[3456789]* | aix[56789]*)
+ aix[56789]*)
+ # Newer versions of AIX only support PowerPC architecture, so use
+ # atomic instructions directly.
+ os_include_dir="os/aix"
+ ;;
+ aix4.[3456789]*)
# We set os_include_dir to os/aix only on AIX 4.3 and newer, but
# os/aix/atomicity.h works on earlier versions of AIX 4.*, so we
# explicitly duplicate the directory for 4.[<3].
os_include_dir="os/aix"
atomicity_dir="os/aix"
- atomic_word_dir="os/aix"
- OPT_LDFLAGS="-Wl,-G"
;;
aix4.*)
os_include_dir="os/generic"
atomicity_dir="os/aix"
- atomic_word_dir="os/aix"
;;
aix*)
os_include_dir="os/generic"
os_include_dir="os/newlib"
OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)"
;;
- darwin | darwin[1-7] | darwin[1-7].*)
- # On 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.
+ 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="${OPT_LDFLAGS} -Wl,-single_module -Wl,-flat_namespace"
os_include_dir="os/bsd/darwin"
;;
- darwin[89] | darwin[89].* | darwin[1-9][0-9]* )
- # On Darwin, performance is improved if libstdc++ is single-module,
- # and on 8+ compatibility is better if not -flat_namespace.
+ darwin8 | darwin8.* )
+ # For 8+ compatibility is better if not -flat_namespace.
OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module"
case "${host_cpu}" in
i[34567]86 | x86_64)
esac
os_include_dir="os/bsd/darwin"
;;
+ darwin*)
+ # Post Darwin8, defaults should be sufficient.
+ os_include_dir="os/bsd/darwin"
+ ;;
*djgpp*) # leading * picks up "msdosdjgpp"
os_include_dir="os/djgpp"
error_constants_dir="os/djgpp"
;;
+ dragonfly*)
+ os_include_dir="os/bsd/dragonfly"
+ ;;
freebsd*)
os_include_dir="os/bsd/freebsd"
;;
- gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+ linux-musl*)
+ os_include_dir="os/generic"
+ ;;
+ gnu* | linux* | kfreebsd*-gnu)
if [ "$uclibc" = "yes" ]; then
os_include_dir="os/uclibc"
elif [ "$bionic" = "yes" ]; then
hpux*)
os_include_dir="os/hpux"
;;
- irix6.5*)
- os_include_dir="os/irix/irix6.5"
- atomicity_dir=os/irix
- atomic_word_dir=os/irix
- ;;
mingw32*)
- os_include_dir="os/mingw32"
- error_constants_dir="os/mingw32"
+ case "$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="${OPT_LDFLAGS} \$(lt_host_flags)"
;;
netbsd*)
os_include_dir="os/bsd/netbsd"
;;
- osf*)
- os_include_dir="os/generic"
- # libstdc++.so relies on emutls on Tru64 UNIX, which only works with the
- # real functions implemented in libpthread.so, not with the dummies in
- # libgcc, so always pass -lpthread.
- OPT_LDFLAGS="${OPT_LDFLAGS} -lpthread"
+ 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
- ;;
- solaris2.8)
- os_include_dir="os/solaris/solaris2.8"
+ rtems*)
+ # Use libatomic if necessary and avoid libstdc++ specific atomicity support
+ atomicity_dir="cpu/generic/atomicity_builtins"
;;
- solaris2.9 | solaris2.1[0-9])
- os_include_dir="os/solaris/solaris2.9"
+ solaris2*)
+ os_include_dir="os/solaris"
;;
tpf)
os_include_dir="os/tpf"
mips64*)
abi_baseline_pair=mips64-linux-gnu
;;
- powerpc64)
+ powerpc64*)
abi_baseline_pair=powerpc64-linux-gnu
;;
s390)
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 -d ${glibcxx_srcdir}/config/abi/post/${try_cpu}-linux-gnu; then
- abi_baseline_pair=${try_cpu}-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-*eabi)
+ arm*-*-linux-*)
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.[89])
- abi_baseline_pair=solaris2.8
- abi_baseline_subdir_switch=--print-multi-os-directory
- ;;
- *-*-solaris2.1[0-9])
- abi_baseline_pair=solaris2.10
+ *-*-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
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