configure.ac: Check for COMDAT support.

[thirdparty/gcc.git] / gcc / configure

diff --git a/gcc/configure b/gcc/configure
index f5d20bfd1d52913d722a1f162bfd326506740dea..8a20fd34a8a0fb97a92900c7fff46917e883a1bb 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -10835,12 +10835,117 @@ fi
 echo "$as_me:$LINENO: result: $gcc_cv_as_shf_merge" >&5
 echo "${ECHO_T}$gcc_cv_as_shf_merge" >&6
 
+if test $gcc_cv_as_shf_merge = no; then
+  echo "$as_me:$LINENO: checking assembler for section merging support" >&5
+echo $ECHO_N "checking assembler for section merging support... $ECHO_C" >&6
+if test "${gcc_cv_as_shf_merge+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  gcc_cv_as_shf_merge=no
+    if test $in_tree_gas = yes; then
+    if test $in_tree_gas_is_elf = yes \
+  && test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 12 \) \* 1000 + 0`
+  then gcc_cv_as_shf_merge=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    echo '.section .rodata.str, "aMS", %progbits, 1' > conftest.s
+    if { ac_try='$gcc_cv_as --fatal-warnings -o conftest.o conftest.s >&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }
+    then
+       gcc_cv_as_shf_merge=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_as_shf_merge" >&5
+echo "${ECHO_T}$gcc_cv_as_shf_merge" >&6
+
+fi
 
 cat >>confdefs.h <<_ACEOF
 #define HAVE_GAS_SHF_MERGE `if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`
 _ACEOF
 
 
+echo "$as_me:$LINENO: checking assembler for COMDAT group support" >&5
+echo $ECHO_N "checking assembler for COMDAT group support... $ECHO_C" >&6
+if test "${gcc_cv_as_comdat_group+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  gcc_cv_as_comdat_group=no
+    if test $in_tree_gas = yes; then
+    if test $in_tree_gas_is_elf = yes \
+  && test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 15 \) \* 1000 + 91`
+  then gcc_cv_as_comdat_group=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s
+    if { ac_try='$gcc_cv_as --fatal-warnings -o conftest.o conftest.s >&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }
+    then
+       gcc_cv_as_comdat_group=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_as_comdat_group" >&5
+echo "${ECHO_T}$gcc_cv_as_comdat_group" >&6
+
+if test $gcc_cv_as_comdat_group = yes; then
+  gcc_cv_as_comdat_group_percent=no
+else
+ echo "$as_me:$LINENO: checking assembler for COMDAT group support" >&5
+echo $ECHO_N "checking assembler for COMDAT group support... $ECHO_C" >&6
+if test "${gcc_cv_as_comdat_group_percent+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  gcc_cv_as_comdat_group_percent=no
+    if test $in_tree_gas = yes; then
+    if test $in_tree_gas_is_elf = yes \
+  && test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 15 \) \* 1000 + 91`
+  then gcc_cv_as_comdat_group_percent=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    echo '.section .text,"axG",%progbits,.foo,comdat' > conftest.s
+    if { ac_try='$gcc_cv_as --fatal-warnings -o conftest.o conftest.s >&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }
+    then
+       gcc_cv_as_comdat_group_percent=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+echo "$as_me:$LINENO: result: $gcc_cv_as_comdat_group_percent" >&5
+echo "${ECHO_T}$gcc_cv_as_comdat_group_percent" >&6
+
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_GAS_COMDAT_GROUP `if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
+
 # Thread-local storage - the check is heavily parametrized.
 conftest_s=
 tls_first_major=