8238960: linux-i586 builds are inconsistent as the newly build jdk is not able...

8238960: linux-i586 builds are inconsistent as the newly build jdk is not able to reserve enough space for object heap
Reviewed-by: andrew

common/autoconf/flags.m4

@@ -747,9 +747,13 @@ AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
       LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
     fi
     if test "x$TOOLCHAIN_TYPE" = xgcc; then
+      # Enabling pie on 32 bit builds prevents the JVM from allocating a continuous
+      # java heap.
+      if test "x$OPENJDK_TARGET_CPU_BITS" != "x32"; then
         LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -pie"
       fi
     fi
+  fi
   AC_SUBST(LDFLAGS_JDKLIB)
   AC_SUBST(LDFLAGS_JDKEXE)
   AC_SUBST(LDFLAGS_JDKLIB_SUFFIX)

common/autoconf/generated-configure.sh

@@ -4379,7 +4379,7 @@ VS_SDK_PLATFORM_NAME_2017=
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1585090811
+DATE_WHEN_GENERATED=1585090987
 
 ###############################################################################
 #
@@ -42177,9 +42177,13 @@ $as_echo "$supports" >&6; }
       LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -Xlinker --allow-shlib-undefined"
     fi
     if test "x$TOOLCHAIN_TYPE" = xgcc; then
+      # Enabling pie on 32 bit builds prevents the JVM from allocating a continuous
+      # java heap.
+      if test "x$OPENJDK_TARGET_CPU_BITS" != "x32"; then
         LDFLAGS_JDKEXE="$LDFLAGS_JDKEXE -pie"
       fi
     fi
+  fi