Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-5.1.0.tar.bz2.gcc-5.1.0

1 files changed, 460 insertions, 3 deletions

diff --git a/libgcc/configure b/libgcc/configure
index 35896deb7b..08c931929c 100644
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -566,9 +566,13 @@ sfp_machine_header
 set_use_emutls
 set_have_cc_tls
 vis_hide
+accel_dir_suffix
+force_explicit_eh_registry
 fixed_point
 enable_decimal_float
 decimal_float
+EGREP
+GREP
 long_double_type_size
 double_type_size
 CPP
@@ -608,6 +612,7 @@ build_os
 build_vendor
 build_cpu
 build
+with_aix_soname
 enable_vtable_verify
 enable_shared
 libgcc_topdir
@@ -657,6 +662,7 @@ with_cross_host
 with_ld
 enable_shared
 enable_vtable_verify
+with_aix_soname
 enable_version_specific_runtime_libs
 with_slibdir
 enable_maintainer_mode
@@ -664,6 +670,8 @@ with_build_libsubdir
 enable_decimal_float
 with_system_libunwind
 enable_sjlj_exceptions
+enable_explicit_exception_frame_registration
+with_glibc_version
 enable_tls
 '
       ac_precious_vars='build_alias
@@ -1301,6 +1309,10 @@ Optional Features:
 			to use
   --enable-sjlj-exceptions
                           force use of builtin_setjmp for exceptions
+  --enable-explicit-exception-frame-registration
+                          register exception tables explicitly at module
+                          start, for use e.g. for compatibility with
+                          installations without PT_GNU_EH_FRAME support
   --enable-tls            Use thread-local storage [default=yes]
 
 Optional Packages:
@@ -1309,9 +1321,14 @@ Optional Packages:
   --with-target-subdir=SUBDIR      Configuring in a subdirectory for target
   --with-cross-host=HOST           Configuring with a cross compiler
   --with-ld               arrange to use the specified ld (full pathname)
+  --with-aix-soname=aix|svr4|both
+                          shared library versioning (aka "SONAME") variant to
+                          provide on AIX
   --with-slibdir=DIR      shared libraries in DIR LIBDIR
   --with-build-libsubdir=DIR  Directory where to find libraries for build system
   --with-system-libunwind use installed libunwind
+  --with-glibc-version=M.N
+                          assume GCC used with glibc version M.N or later
 
 Some influential environment variables:
   CC          C compiler command
@@ -1699,6 +1716,35 @@ rm -f conftest.val
   return $ac_retval
 
 } # ac_fn_c_compute_int
+
+# ac_fn_c_check_header_preproc LINENO HEADER VAR
+# ----------------------------------------------
+# Tests whether HEADER is present, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_preproc ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_header_preproc
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
@@ -2156,6 +2202,29 @@ fi
 
 
 
+
+# Check whether --with-aix-soname was given.
+if test "${with_aix_soname+set}" = set; then :
+  withval=$with_aix_soname; case "${host}:${enable_shared}" in
+ power*-*-aix[5-9]*:yes)
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide for shared libgcc" >&5
+$as_echo_n "checking which variant of shared library versioning to provide for shared libgcc... " >&6; }
+   case ${withval} in
+     aix|svr4|both) ;;
+     *) as_fn_error "Unknown argument to --with-aix-soname" "$LINENO" 5;;
+   esac
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $withval" >&5
+$as_echo "$withval" >&6; }
+   ;;
+ *) with_aix_soname=aix ;;
+ esac
+
+else
+  with_aix_soname=aix
+fi
+
+
+
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
   as_fn_error "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
@@ -2234,9 +2303,15 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 case "${host}" in
     # PIC is the default on some targets or must not be used.
     *-*-darwin*)
-	# PIC is the default on this platform
-	# Common symbols not allowed in MH_DYLIB files
-	PICFLAG=-fno-common
+	# For darwin, common symbols are not allowed in MH_DYLIB files
+	case "${CFLAGS}" in
+	  # If we are using a compiler supporting mdynamic-no-pic
+	  # and the option has been tested as safe to add, then cancel
+	  # it here, since the code generated is incompatible with shared
+	  # libs.
+	  *-mdynamic-no-pic*) PICFLAG='-fno-common -mno-dynamic-no-pic' ;;
+	  *) PICFLAG=-fno-common ;;
+	esac
 	;;
     alpha*-dec-osf5*)
 	# PIC is the default.
@@ -4055,6 +4130,265 @@ as_fn_arith $ac_cv_sizeof_long_double \* 8 && long_double_type_size=$as_val
 
 
 
+
+for ac_header in inttypes.h stdint.h stdlib.h ftw.h \
+	unistd.h sys/stat.h sys/types.h \
+	string.h strings.h memory.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_preproc "$LINENO" "$ac_header" "$as_ac_Header"
+eval as_val=\$$as_ac_Header
+   if test "x$as_val" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if test "${ac_cv_path_GREP+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if test "${ac_cv_path_EGREP+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if test "${ac_cv_header_stdc+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+
 # Check for decimal float support.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether decimal floating point is supported" >&5
 $as_echo_n "checking whether decimal floating point is supported... " >&6; }
@@ -4270,6 +4604,22 @@ no)
   ;;
 esac
 
+# Check whether --enable-explicit-exception-frame-registration was given.
+if test "${enable_explicit_exception_frame_registration+set}" = set; then :
+  enableval=$enable_explicit_exception_frame_registration;
+force_explicit_eh_registry=
+if test "$enable_explicit_exception_frame_registration" = yes; then
+  if test "$enable_sjlj_exceptions" = yes; then
+    as_fn_error "Can't enable both of --enable-sjlj-exceptions
+                  and --enable-explicit-exception-frame-registration" "$LINENO" 5
+  fi
+  force_explicit_eh_registry=-DUSE_EH_FRAME_REGISTRY_ALWAYS
+fi
+
+fi
+
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
 $as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
 if test "${acl_cv_prog_gnu_ld+set}" = set; then :
@@ -4354,9 +4704,95 @@ fi
 $as_echo "$libgcc_cv_mips_hard_float" >&6; }
 esac
 
+# Determine the version of glibc, if any, used on the target.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for target glibc version" >&5
+$as_echo_n "checking for target glibc version... " >&6; }
+
+# Check whether --with-glibc-version was given.
+if test "${with_glibc_version+set}" = set; then :
+  withval=$with_glibc_version;
+if echo "$with_glibc_version" | grep '^[0-9][0-9]*\.[0-9][0-9]*$'; then
+  glibc_version_major=`echo "$with_glibc_version" | sed -e 's/\..*//'`
+  glibc_version_minor=`echo "$with_glibc_version" | sed -e 's/.*\.//'`
+else
+  as_fn_error "option --with-glibc-version requires a version number M.N" "$LINENO" 5
+fi
+else
+
+if ac_fn_c_compute_int "$LINENO" "__GLIBC__" "glibc_version_major"        "#include <features.h>"; then :
+
+else
+  glibc_version_major=0
+fi
+
+if ac_fn_c_compute_int "$LINENO" "__GLIBC_MINOR__" "glibc_version_minor"        "#include <features.h>"; then :
+
+else
+  glibc_version_minor=0
+fi
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibc_version_major.$glibc_version_minor" >&5
+$as_echo "$glibc_version_major.$glibc_version_minor" >&6; }
+
+# Determine floating-point type for powerpc*-*-linux*.
+# Single-precision-only FPRs are not a supported configuration for
+# this target, so are not allowed for in this test.
+case ${host} in
+powerpc*-*-linux*)
+  cat > conftest.c <<EOF
+#ifdef __powerpc64__
+ppc_fp_type=64
+#elif defined _SOFT_FLOAT
+ppc_fp_type=soft
+#elif defined _SOFT_DOUBLE
+ppc_fp_type=e500v1
+#elif defined __NO_FPRS__
+ppc_fp_type=e500v2
+#else
+ppc_fp_type=hard
+#endif
+EOF
+eval `${CC-cc} -E conftest.c | grep ppc_fp_type=`
+rm -f conftest.c
+# glibc 2.19 and later provide all the soft-fp functions, with proper
+# interactions with <fenv.h> exception and rounding mode handling, so
+# make libgcc's versions into compat symbols if a recent enough glibc
+# version is being used.
+ppc_fp_compat=
+case ${ppc_fp_type} in
+soft|e500v1|e500v2)
+  if test $glibc_version_major -gt 2 \
+    || ( test $glibc_version_major -eq 2 \
+        && test $glibc_version_minor -ge 19 ); then
+    ppc_fp_compat="t-softfp-compat"
+  fi
+  ;;
+esac
+;;
+esac
+
 # Collect host-machine-specific information.
 . ${srcdir}/config.host
 
+# Used for constructing correct paths for offload compilers.
+accel_dir_suffix=
+if test x"$enable_as_accelerator_for" != x; then
+  accel_dir_suffix=/accel/${target_noncanonical}
+  case "${target_noncanonical}" in
+    *-intelmicemul-*)
+      # In this case we expect offload compiler to be built as native, so we
+      # need to change install directory for driver to be able to find libgcc.
+      host_noncanonical=${enable_as_accelerator_for} ;;
+  esac
+fi
+
+
+if test x"$enable_offload_targets" != x; then
+  extra_parts="${extra_parts} crtoffloadbegin.o crtoffloadend.o"
+fi
+
 # Check if Solaris/x86 linker supports ZERO terminator unwind entries.
 # This is after config.host so we can augment tmake_file.
 # Link with -nostartfiles -nodefaultlibs since neither are present while
@@ -4380,6 +4816,27 @@ EOF
   ;;
 esac
 
+# Check if xtensa target is configured for windowed ABI and thus needs to use
+# custom unwind code.
+# This is after config.host so we can augment tmake_file.
+case ${host} in
+xtensa*-*)
+  cat > conftest.c <<EOF
+	#ifdef __XTENSA_CALL0_ABI__
+	#error
+	#endif
+EOF
+  if { ac_try='${CC-cc} -E -o conftest.i conftest.c 1>&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+      tmake_file="${tmake_file} xtensa/t-windowed"
+  fi
+  ;;
+esac
+
 # Check for visibility support.  This is after config.host so that
 # we can check for asm_hidden_op.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __attribute__((visibility(\"hidden\")))" >&5