* configure.ac: Check for Sun symbol versioning.

	Check for memmove.
	* configure: Regenerate.
	* config.h.in: Regenerate.

	* Makefile.am [LIBSSP_USE_SYMVER]: Protect version_arg,
	version_dep with LIBSSP_USE_SYMVER_GNU.
	[LIBSSP_USE_SYMVER_SUN]: Handle Sun symbol versioning.
	* Makefile.in: Regenerate.

	* ssp.map: Reformat.

	* memmove-chk.c: Change guard to HAVE_MEMMOVE.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161699 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 72 insertions, 13 deletions

diff --git a/libssp/configure b/libssp/configure
index d5e83844f01..7722c954148 100755
--- a/libssp/configure
+++ b/libssp/configure
@@ -625,6 +625,10 @@ LIBTOOL
 ssp_have_usable_vsnprintf
 EGREP
 GREP
+LIBSSP_USE_SYMVER_SUN_FALSE
+LIBSSP_USE_SYMVER_SUN_TRUE
+LIBSSP_USE_SYMVER_GNU_FALSE
+LIBSSP_USE_SYMVER_GNU_TRUE
 LIBSSP_USE_SYMVER_FALSE
 LIBSSP_USE_SYMVER_TRUE
 CPP
@@ -4093,18 +4097,18 @@ fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether symbol versioning is supported" >&5
 $as_echo_n "checking whether symbol versioning is supported... " >&6; }
-cat > conftest.map <<EOF
-FOO_1.0 {
-  global: *foo*; bar; local: *;
-};
-EOF
-save_LDFLAGS="$LDFLAGS"
-LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
 if test x$gcc_no_link = xyes; then
   # If we cannot link, we cannot build shared libraries, so do not use
   # symbol versioning.
   ssp_use_symver=no
 else
+  save_LDFLAGS="$LDFLAGS"
+  LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
+  cat > conftest.map <<EOF
+FOO_1.0 {
+  global: *foo*; bar; local: *;
+};
+EOF
   if test x$gcc_no_link = xyes; then
   as_fn_error "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
 fi
@@ -4120,17 +4124,48 @@ main ()
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ssp_use_symver=yes
+  ssp_use_symver=gnu
 else
   ssp_use_symver=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
+  if test x$ssp_use_symver = xno; then
+    LDFLAGS="$save_LDFLAGS"
+    LDFLAGS="$LDFLAGS -fPIC -shared -Wl,-M,./conftest.map"
+    # Sun ld cannot handle wildcards and treats all entries as undefined.
+    cat > conftest.map <<EOF
+FOO_1.0 {
+  global: foo; local: *;
+};
+EOF
+    if test x$gcc_no_link = xyes; then
+  as_fn_error "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ssp_use_symver=sun
+else
+  ssp_use_symver=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  fi
+  LDFLAGS="$save_LDFLAGS"
 fi
-LDFLAGS="$save_LDFLAGS"
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ssp_use_symver" >&5
 $as_echo "$ssp_use_symver" >&6; }
- if test "x$ssp_use_symver" = xyes; then
+ if test "x$ssp_use_symver" != xno; then
   LIBSSP_USE_SYMVER_TRUE=
   LIBSSP_USE_SYMVER_FALSE='#'
 else
@@ -4138,6 +4173,22 @@ else
   LIBSSP_USE_SYMVER_FALSE=
 fi
 
+ if test "x$ssp_use_symver" = xgnu; then
+  LIBSSP_USE_SYMVER_GNU_TRUE=
+  LIBSSP_USE_SYMVER_GNU_FALSE='#'
+else
+  LIBSSP_USE_SYMVER_GNU_TRUE='#'
+  LIBSSP_USE_SYMVER_GNU_FALSE=
+fi
+
+ if test "x$ssp_use_symver" = xsun; then
+  LIBSSP_USE_SYMVER_SUN_TRUE=
+  LIBSSP_USE_SYMVER_SUN_FALSE='#'
+else
+  LIBSSP_USE_SYMVER_SUN_TRUE='#'
+  LIBSSP_USE_SYMVER_SUN_FALSE=
+fi
+
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
@@ -4423,7 +4474,7 @@ if test x$gcc_no_link = xyes; then
   $as_echo "#define HAVE_STRNCAT 1" >>confdefs.h
 
 else
-  for ac_func in mempcpy strncpy strncat
+  for ac_func in memmove mempcpy strncpy strncat
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -10591,7 +10642,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10594 "configure"
+#line 10645 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10697,7 +10748,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10700 "configure"
+#line 10751 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11096,6 +11147,14 @@ if test -z "${LIBSSP_USE_SYMVER_TRUE}" && test -z "${LIBSSP_USE_SYMVER_FALSE}";
   as_fn_error "conditional \"LIBSSP_USE_SYMVER\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${LIBSSP_USE_SYMVER_GNU_TRUE}" && test -z "${LIBSSP_USE_SYMVER_GNU_FALSE}"; then
+  as_fn_error "conditional \"LIBSSP_USE_SYMVER_GNU\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${LIBSSP_USE_SYMVER_SUN_TRUE}" && test -z "${LIBSSP_USE_SYMVER_SUN_FALSE}"; then
+  as_fn_error "conditional \"LIBSSP_USE_SYMVER_SUN\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 
 : ${CONFIG_STATUS=./config.status}
 ac_write_fail=0