# 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
c_model=c_std
c_compatibility=no
atomic_word_dir=cpu/generic
+atomicity_dir="cpu/generic"
+cpu_defines_dir="cpu/generic"
+try_cpu=generic
+abi_tweaks_dir="cpu/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=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
+ try_cpu=mips
;;
m680[246]0)
try_cpu=m68k
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}
+
+
+# Set specific CPU overrides for cpu_defines_dir. Most can just use generic.
+# THIS TABLE IS SORTED. KEEP IT THAT WAY.
+case "${host_cpu}" in
+ powerpc* | rs6000)
+ cpu_defines_dir=cpu/powerpc
;;
esac
+
# Set specific CPU overrides for atomic_word_dir. Most can just use generic.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host_cpu}" in
+ alpha*)
+ atomic_word_dir=cpu/alpha
+ ;;
cris*)
atomic_word_dir=cpu/cris
;;
+ ia64)
+ atomic_word_dir=cpu/ia64
+ ;;
+ powerpc* | rs6000)
+ atomic_word_dir=cpu/powerpc
+ ;;
sparc* | ultrasparc)
atomic_word_dir=cpu/sparc
;;
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/${try_cpu}
-abi_baseline_pair=${try_cpu}-${host_os}
-unset try_cpu
+# 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
-else
- atomicity_dir="cpu/generic"
fi
+
if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/cxxabi_tweaks.h ; then
abi_tweaks_dir=$cpu_include_dir
-else
- abi_tweaks_dir="cpu/generic"
fi
+
# Set any OS-dependent bits.
# Set the os_include_dir.
# Set c_model, c_compatibility here.
os_include_dir="os/bsd/freebsd"
;;
gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
- os_include_dir="os/gnu-linux"
+ if [ "$uclibc" = "yes" ]; then
+ os_include_dir="os/uclibc"
+ else
+ os_include_dir="os/gnu-linux"
+ fi
;;
hpux*)
os_include_dir="os/hpux"
# Set any OS-dependent and CPU-dependent bits.
# THIS TABLE IS SORTED. KEEP IT THAT WAY.
case "${host}" in
- alpha*-*-freebsd5*)
- abi_baseline_pair="alpha-freebsd5"
- ;;
- arm*-*-linux*)
- abi_baseline_pair="arm-linux-gnu"
- ;;
- i*86-*-freebsd4*)
- abi_baseline_pair="i386-freebsd4"
- ;;
- i*86-*-freebsd5*)
- abi_baseline_pair="i386-freebsd5"
- ;;
- mips*-*-linux*)
- atomicity_dir="cpu/mips"
- abi_baseline_pair="mips-linux-gnu"
- cpu_include_dir="cpu/mips"
- ;;
- s390-*-linux*)
- abi_baseline_pair="s390-linux-gnu"
- ;;
- s390x-*-linux*)
- abi_baseline_pair="s390x-linux-gnu"
- ;;
- sparc*-*-freebsd5*)
- abi_baseline_pair="sparc-freebsd5"
- ;;
- x86_64-*-linux*)
- abi_baseline_pair="x86_64-linux-gnu"
+ *-*-linux*)
+ case "${host_cpu}" in
+ i[567]86)
+ abi_baseline_pair=i486-linux-gnu
+ ;;
+ powerpc64)
+ abi_baseline_pair=powerpc64-linux-gnu
+ ;;
+ s390)
+ abi_baseline_pair=s390-linux-gnu
+ ;;
+ s390x)
+ abi_baseline_pair=s390x-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=${try_cpu}-linux-gnu
+ fi
+ esac
+ ;;
+ mips*-*-*)
+ case "${host_os}" in
+ gnu* | linux* | irix*)
+ ;;
+ *)
+ atomicity_dir="cpu/generic"
+ ;;
+ esac
+ ;;
+ powerpc*-*-darwin*)
+ port_specific_symbol_files="\$(srcdir)/../config/os/bsd/darwin/ppc-extra.ver"
;;
esac
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