# 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.
#
# 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_tweaks_dir location of cxxabi_tweaks.h,
+# defaults to cpu_include_dir
#
-# atomicity_include_dir location of atomicity.h,
+# atomicity_dir location of atomicity.h,
# defaults to cpu_include_dir
#
+# atomic_word_dir location of atomic_word.h
+# defaults to generic.
+#
+# cpu_defines_dir location of cpu_defines.h
+# defaults to generic.
+#
# It possibly modifies the following variables:
#
# OPT_LDFLAGS extra flags to pass when linking the library, of
# systems out there. :-)
c_model=c_std
c_compatibility=no
-fpos_include_dir="os/generic"
+atomic_word_dir=cpu/generic
+cpu_defines_dir=cpu/generic
# HOST-SPECIFIC OVERRIDES
# Set any CPU-dependent bits.
alpha*)
try_cpu=alpha
;;
+ arm* | xscale | ep9312)
+ try_cpu=arm
+ ;;
i[567]86 | x86_64)
try_cpu=i486
;;
;;
esac
+# Set specific CPU overrides for atomic_word_dir. Most can just use generic.
+# THIS TABLE IS SORTED. KEEP IT THAT WAY.
+case "${host_cpu}" in
+ cris*)
+ atomic_word_dir=cpu/cris
+ ;;
+ sparc* | ultrasparc)
+ atomic_word_dir=cpu/sparc
+ ;;
+esac
+
+# Set specific CPU overrides for cpu_defines_dir. Most can just use generic.
+# THIS TABLE IS SORTED. KEEP IT THAT WAY.
+case "${host_cpu}" in
+ powerpc* | rs6000)
+ cpu_defines_dir=cpu/powerpc
+ ;;
+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
+cpu_include_dir=cpu/${try_cpu}
abi_baseline_pair=${try_cpu}-${host_os}
+unset try_cpu
+
+if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/atomicity.h ; then
+ atomicity_dir=$cpu_include_dir
+else
+ atomicity_dir="cpu/generic"
+fi
+if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/cxxabi_tweaks.h ; then
+ abi_tweaks_dir=$cpu_include_dir
+else
+ abi_tweaks_dir="cpu/generic"
+fi
# Set any OS-dependent bits.
# Set the os_include_dir.
# os/aix/atomicity.h works on earlier versions of AIX 4.*, so we
# explicitly duplicate the directory for 4.[<3].
os_include_dir="os/aix"
- atomicity_include_dir="os/aix"
+ atomicity_dir="os/aix"
+ atomic_word_dir="os/aix"
OPT_LDFLAGS="-Wl,-G"
;;
aix4.*)
- atomicity_include_dir="os/aix"
+ os_include_dir="os/generic"
+ atomicity_dir="os/aix"
+ atomic_word_dir="os/aix"
;;
aix*)
- atomicity_include_dir="cpu/generic"
+ os_include_dir="os/generic"
+ atomicity_dir="cpu/generic"
;;
bsd*)
# Plain BSD attempts to share FreeBSD files.
cygwin*)
os_include_dir="os/newlib"
;;
+ darwin | darwin[1-7] | darwin[1-7].*)
+ # On Darwin, performance is improved if libstdc++ is single-module.
+ # Up to at least 10.3.7, -flat_namespace is required for proper
+ # treatment of coalesced symbols.
+ OPT_LDFLAGS="${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.
+ OPT_LDFLAGS="${OPT_LDFLAGS} -Wl,-single_module"
+ os_include_dir="os/bsd/darwin"
+ ;;
*djgpp*) # leading * picks up "msdosdjgpp"
os_include_dir="os/djgpp"
;;
freebsd*)
os_include_dir="os/bsd/freebsd"
;;
- gnu* | linux*)
- os_include_dir="os/gnu-linux"
- fpos_include_dir=$os_include_dir
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+ if [ "$uclibc" = "yes" ]; then
+ os_include_dir="os/uclibc"
+ else
+ os_include_dir="os/gnu-linux"
+ fi
;;
hpux*)
os_include_dir="os/hpux"
irix[1-6] | irix[1-5].* | irix6.[0-4]*)
# This is known to work on at least IRIX 5.2 and 6.3.
os_include_dir="os/irix/irix5.2"
- atomicity_include_dir=$os_include_dir
+ atomicity_dir=os/irix
+ atomic_word_dir=os/irix
;;
irix6.5*)
os_include_dir="os/irix/irix6.5"
- atomicity_include_dir=$os_include_dir
+ atomicity_dir=os/irix
+ atomic_word_dir=os/irix
;;
mingw32*)
os_include_dir="os/mingw32"
# This too-vague configuration does not provide enough information
# to select a ctype include, and thus os_include_dir is a crap shoot.
echo "Please specify the full version of Solaris, ie. solaris2.9 " 1>&2
- exit 1;
+ exit 1
;;
solaris2.5 | solaris2.5.[0-9])
os_include_dir="os/solaris/solaris2.5"
solaris2.[789] | solaris2.1[0-9])
os_include_dir="os/solaris/solaris2.7"
;;
+ tpf)
+ os_include_dir="os/tpf"
+ ;;
+ vxworks)
+ os_include_dir="os/vxworks"
+ ;;
windiss*)
os_include_dir="os/windiss"
;;
# Set any OS-dependent and CPU-dependent bits.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${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"
;;
+ arm*-*-linux*)
+ abi_baseline_pair="arm-linux-gnu"
+ ;;
i*86-*-freebsd4*)
abi_baseline_pair="i386-freebsd4"
;;
i*86-*-freebsd5*)
abi_baseline_pair="i386-freebsd5"
;;
+ mips*-*-linux*)
+ atomicity_dir="cpu/mips"
+ abi_baseline_pair="mips-linux-gnu"
+ cpu_include_dir="cpu/mips"
+ ;;
+ powerpc*-*-darwin*)
+ port_specific_symbol_files="\$(srcdir)/../config/os/bsd/darwin/ppc-extra.ver"
+ ;;
+ powerpc64-*-linux*)
+ abi_baseline_pair="powerpc64-linux-gnu"
+ ;;
+ s390-*-linux*)
+ abi_baseline_pair="s390-linux-gnu"
+ ;;
+ s390x-*-linux*)
+ abi_baseline_pair="s390x-linux-gnu"
+ ;;
sparc*-*-freebsd5*)
abi_baseline_pair="sparc-freebsd5"
;;
+ x86_64-*-linux*)
+ abi_baseline_pair="x86_64-linux-gnu"
+ ;;
esac
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