X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Fconfigure.host;h=0b366eafaae8cfa0abd09128bd8ac16b9f775c7c;hb=ceb17928e5d1d5f89636699f13cc3bde6e19644c;hp=5dd5a74f66ee26e06127ffc6774f0f6d608bf29f;hpb=9eb6e1d306c0c7a61693b3e49383efc631eadeb6;p=gcc.git

diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host
index 5dd5a74f66e..0b366eafaae 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 ATOMICITYH.
+#                          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.
@@ -30,15 +30,46 @@
 #   abi_baseline_pair      directory name for ABI compat testing,
 #                          defaults to host_cpu-host_os (as per config.guess)
 #
-#   ATOMICITYH             location of atomicity.h,
+#   abi_baseline_subdir_switch
+#			   g++ switch to determine ABI baseline subdir for
+#			   multilibbed targets,
+#			   defaults to --print-multi-directory
+#
+#   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
 #                          the form '-Wl,blah'
 #                          (defaults to empty in acinclude.m4)
 #
+#   port_specific_symbol_files
+#                          whitespace-separated list of files containing
+#                          additional symbols to export from the shared
+#                          library, when symbol versioning is in use
+#
 #
 # If the defaults will not work for your platform, you need only change the
 # variables that won't work, i.e., you do not need to explicitly set a
@@ -50,82 +81,150 @@
 # 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
-
+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
     ;;
-  athlon* | i586 | i686 | i786 | x86_64)
+  arm*)
+    try_cpu=arm
+    ;;
+  crisv32)
+    try_cpu=cris
+    ;;
+  i[567]86 | x86_64)
     try_cpu=i486
     ;;
   hppa*)
     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).
+  mep*)
+    EXTRA_CXX_FLAGS=-mm
     try_cpu=generic
     ;;
-  m680[246]0)
-    try_cpu=m68k
+  mips*)
+    try_cpu=mips
     ;;
   powerpc* | rs6000)
     try_cpu=powerpc
     ;;
-  s390x)
-    try_cpu=s390
-    ;;
   sparc* | ultrasparc)
     try_cpu=sparc
     ;;
   *)
-    if test -d ${glibcpp_srcdir}/config/cpu/${host_cpu}; then
+    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/${try_cpu}"
-ATOMICITYH=$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 "${host_os}" in
-  aix4.[3456789]* | aix[56789]*)
+  aix[56789]*)
+    # Newer versions of AIX only support PowerPC architecture, so use
+    # atomic instructions directly.
+    os_include_dir="os/aix"
+    ;;
+  aix4.[3456789]*)
     # We set os_include_dir to os/aix only on AIX 4.3 and newer, but
     # os/aix/atomicity.h works on earlier versions of AIX 4.*, so we
     # explicitly duplicate the directory for 4.[<3].
     os_include_dir="os/aix"
-    ATOMICITYH="os/aix"
-    OPT_LDFLAGS="-Wl,-G"
+    atomicity_dir="os/aix"
     ;;
   aix4.*)
-    ATOMICITYH="os/aix"
+    os_include_dir="os/generic"
+    atomicity_dir="os/aix"
     ;;
   aix*)
-    ATOMICITYH="cpu/generic"
+    os_include_dir="os/generic"
+    atomicity_dir="cpu/generic"
     ;;
   bsd*)
     # Plain BSD attempts to share FreeBSD files.
@@ -133,50 +232,89 @@ case "${host_os}" in
     ;;
   cygwin*)
     os_include_dir="os/newlib"
+    OPT_LDFLAGS="${OPT_LDFLAGS} \$(lt_host_flags)"
+    ;;
+  darwin | darwin[1-7] | darwin[1-7].*)
+    # On Darwin, performance is improved if libstdc++ is single-module.
+    # Up to at least 10.3.7, -flat_namespace is required for proper
+    # treatment of coalesced symbols.
+    OPT_LDFLAGS="${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="${OPT_LDFLAGS} -Wl,-single_module"
+    case "${host_cpu}" in
+      i[34567]86 | x86_64)
+        OPTIMIZE_CXXFLAGS="${OPTIMIZE_CXXFLAGS} -fvisibility-inlines-hidden"
+        ;;
+    esac
+    os_include_dir="os/bsd/darwin"
     ;;
   *djgpp*)      # leading * picks up "msdosdjgpp"
     os_include_dir="os/djgpp"
+    error_constants_dir="os/djgpp"
+    ;;
+  dragonfly*)
+    os_include_dir="os/bsd/dragonfly"
     ;;
   freebsd*)
     os_include_dir="os/bsd/freebsd"
     ;;
-  gnu* | linux*)
-    os_include_dir="os/gnu-linux"
+  linux-musl*)
+    os_include_dir="os/generic"
+    ;;
+  gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+    if [ "$uclibc" = "yes" ]; then
+      os_include_dir="os/uclibc"
+    elif [ "$bionic" = "yes" ]; then
+      os_include_dir="os/bionic"
+    else
+      os_include_dir="os/gnu-linux"
+    fi
     ;;
   hpux*)
     os_include_dir="os/hpux"
     ;;
-  irix[1-6] | irix[1-5].* | irix6.[0-4]*)
-    # This is known to work on at least IRIX 5.2 and 6.3.
-    os_include_dir="os/irix/irix5.2"
-    ATOMICITYH=$os_include_dir
-    ;;
-  irix6.5*)
-    os_include_dir="os/irix/irix6.5"
-    ATOMICITYH=$os_include_dir
-    ;;
   mingw32*)
-    os_include_dir="os/mingw32"
+    case "$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="${OPT_LDFLAGS} \$(lt_host_flags)"
     ;;
   netbsd*)
     os_include_dir="os/bsd/netbsd"
     ;;
-  solaris2.5*)
-    os_include_dir="os/solaris/solaris2.5"
-    ;;
-  solaris2.6*)
-    os_include_dir="os/solaris/solaris2.6"
-    ;;
-  solaris2.[789]*)
-    os_include_dir="os/solaris/solaris2.7"
-    ;;
-  windiss*)
-    os_include_dir="os/windiss"
+  openbsd*)
+    os_include_dir="os/bsd/openbsd"
     ;;
   qnx6.[12]*)
     os_include_dir="os/qnx/qnx6.1"
     c_model=c
     ;;
+  solaris2)
+    # This too-vague configuration does not provide enough information
+    # to select a ctype include, and thus os_include_dir is a crap shoot.
+    echo "Please specify the full version of Solaris, ie. solaris2.10 " 1>&2
+    exit 1
+    ;;
+  solaris2.1[0-9])
+    os_include_dir="os/solaris/solaris2.10"
+    ;;
+  tpf)
+    os_include_dir="os/tpf"
+    ;;
+  vxworks)
+    os_include_dir="os/vxworks"
+    ;;
   *)
     os_include_dir="os/generic"
     ;;
@@ -186,22 +324,61 @@ esac
 # Set any OS-dependent and CPU-dependent bits.
 # THIS TABLE IS SORTED.  KEEP IT THAT WAY.
 case "${host}" in
-  mips*-*-linux*)
-    ATOMICITYH="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*)
+    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
+        ;;
+      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-*)
+	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"
+    ;;
+  *-*-solaris2.1[0-9])
+    # On Solaris 10 with Solaris ld, there's no COMDAT support.  GNU ld always
+    # provides it, as does Solaris ld since Solaris 11, leading to different
+    # baselines.
+    case "${host_os}:${with_gnu_ld}" in
+      # with_gnu_ld may either be unset (default) or no (with --without-gnu-ld).
+      solaris2.10: | solaris2.10:no)
+        abi_baseline_pair=solaris2.10
+	;;
+      *)
+        abi_baseline_pair=solaris2.11
+	;;
+    esac
+    abi_baseline_subdir_switch=--print-multi-os-directory
     ;;
 esac