8150197: Integrate AIX fixes from build-infra

Reviewed-by: erikj

common/autoconf/flags.m4

@@ -123,12 +123,16 @@ AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
 [
   # COMPILER_TARGET_BITS_FLAG  : option for selecting 32- or 64-bit output
   # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler
+  # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder
+  #                              commands produced by the link step (currently AIX only)
   if test "x$TOOLCHAIN_TYPE" = xxlc; then
     COMPILER_TARGET_BITS_FLAG="-q"
     COMPILER_COMMAND_FILE_FLAG="-f"
+    COMPILER_BINDCMD_FILE_FLAG="-bloadmap:"
   else
     COMPILER_TARGET_BITS_FLAG="-m"
     COMPILER_COMMAND_FILE_FLAG="@"
+    COMPILER_BINDCMD_FILE_FLAG=""
 
     # The solstudio linker does not support @-files.
     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
@@ -152,6 +156,7 @@ AC_DEFUN_ONCE([FLAGS_SETUP_INIT_FLAGS],
   fi
   AC_SUBST(COMPILER_TARGET_BITS_FLAG)
   AC_SUBST(COMPILER_COMMAND_FILE_FLAG)
+  AC_SUBST(COMPILER_BINDCMD_FILE_FLAG)
 
   # FIXME: figure out if we should select AR flags depending on OS or toolchain.
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
@@ -294,10 +299,23 @@ AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_LIBS],
     SET_SHARED_LIBRARY_NAME='-h [$]1'
     SET_SHARED_LIBRARY_MAPFILE='-M[$]1'
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
-    PICFLAG="-qpic=large"
+    # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only
+    # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker
+    # will have to patch this single instruction with a call to some out-of-order code which
+    # does the load from the TOC. This is of course slow. But in that case we also would have
+    # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'.
+    # With 'qpic=large' the compiler will by default generate a two-instruction sequence which
+    # can be patched directly by the linker and does not require a jump to out-of-order code.
+    # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc'
+    # instead. This creates a distinct TOC for every compilation unit (and thus requires two
+    # loads for accessing a global variable). But there are rumors that this may be seen as a
+    # 'performance feature' because of improved code locality of the symbols used in a
+    # compilation unit.
+    PICFLAG="-qpic"
+    JVM_CFLAGS="$JVM_CFLAGS $PICFLAG"
     C_FLAG_REORDER=''
     CXX_FLAG_REORDER=''
-    SHARED_LIBRARY_FLAGS="-qmkshrobj"
+    SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry"
     SET_EXECUTABLE_ORIGIN=""
     SET_SHARED_LIBRARY_ORIGIN=''
     SET_SHARED_LIBRARY_NAME=''
@@ -835,7 +853,7 @@ AC_DEFUN_ONCE([FLAGS_SETUP_COMPILER_FLAGS_FOR_JDK],
     LDFLAGS_CXX_SOLSTUDIO="-norunpath"
     LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib"
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
-    LDFLAGS_XLC="-brtl -bnolibpath -bexpall -bernotok"
+    LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok"
     LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_XLC"
   fi
 

common/autoconf/generated-configure.sh

@@ -744,6 +744,7 @@ EXE_OUT_OPTION
 CC_OUT_OPTION
 STRIPFLAGS
 ARFLAGS
+COMPILER_BINDCMD_FILE_FLAG
 COMPILER_COMMAND_FILE_FLAG
 COMPILER_TARGET_BITS_FLAG
 JT_HOME
@@ -4861,7 +4862,7 @@ VS_SDK_PLATFORM_NAME_2013=
 #CUSTOM_AUTOCONF_INCLUDE
 
 # Do not change or remove the following line, it is needed for consistency checks:
-DATE_WHEN_GENERATED=1456136545
+DATE_WHEN_GENERATED=1456136781
 
 ###############################################################################
 #
@@ -45392,12 +45393,16 @@ $as_echo "$tool_specified" >&6; }
 
   # COMPILER_TARGET_BITS_FLAG  : option for selecting 32- or 64-bit output
   # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler
+  # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder
+  #                              commands produced by the link step (currently AIX only)
   if test "x$TOOLCHAIN_TYPE" = xxlc; then
     COMPILER_TARGET_BITS_FLAG="-q"
     COMPILER_COMMAND_FILE_FLAG="-f"
+    COMPILER_BINDCMD_FILE_FLAG="-bloadmap:"
   else
     COMPILER_TARGET_BITS_FLAG="-m"
     COMPILER_COMMAND_FILE_FLAG="@"
+    COMPILER_BINDCMD_FILE_FLAG=""
 
     # The solstudio linker does not support @-files.
     if test "x$TOOLCHAIN_TYPE" = xsolstudio; then
@@ -45425,6 +45430,7 @@ $as_echo "no" >&6; }
 
 
 
+
   # FIXME: figure out if we should select AR flags depending on OS or toolchain.
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     ARFLAGS="-r"
@@ -46199,10 +46205,23 @@ $as_echo "$ac_cv_c_bigendian" >&6; }
     SET_SHARED_LIBRARY_NAME='-h $1'
     SET_SHARED_LIBRARY_MAPFILE='-M$1'
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
-    PICFLAG="-qpic=large"
+    # '-qpic' defaults to 'qpic=small'. This means that the compiler generates only
+    # one instruction for accessing the TOC. If the TOC grows larger than 64K, the linker
+    # will have to patch this single instruction with a call to some out-of-order code which
+    # does the load from the TOC. This is of course slow. But in that case we also would have
+    # to use '-bbigtoc' for linking anyway so we could also change the PICFLAG to 'qpic=large'.
+    # With 'qpic=large' the compiler will by default generate a two-instruction sequence which
+    # can be patched directly by the linker and does not require a jump to out-of-order code.
+    # Another alternative instead of using 'qpic=large -bbigtoc' may be to use '-qminimaltoc'
+    # instead. This creates a distinct TOC for every compilation unit (and thus requires two
+    # loads for accessing a global variable). But there are rumors that this may be seen as a
+    # 'performance feature' because of improved code locality of the symbols used in a
+    # compilation unit.
+    PICFLAG="-qpic"
+    JVM_CFLAGS="$JVM_CFLAGS $PICFLAG"
     C_FLAG_REORDER=''
     CXX_FLAG_REORDER=''
-    SHARED_LIBRARY_FLAGS="-qmkshrobj"
+    SHARED_LIBRARY_FLAGS="-qmkshrobj -bM:SRE -bnoentry"
     SET_EXECUTABLE_ORIGIN=""
     SET_SHARED_LIBRARY_ORIGIN=''
     SET_SHARED_LIBRARY_NAME=''
@@ -46825,7 +46844,7 @@ $as_echo "$supports" >&6; }
     LDFLAGS_CXX_SOLSTUDIO="-norunpath"
     LDFLAGS_CXX_JDK="$LDFLAGS_CXX_JDK $LDFLAGS_CXX_SOLSTUDIO -xnolib"
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
-    LDFLAGS_XLC="-brtl -bnolibpath -bexpall -bernotok"
+    LDFLAGS_XLC="-b64 -brtl -bnolibpath -bexpall -bernotok"
     LDFLAGS_JDK="${LDFLAGS_JDK} $LDFLAGS_XLC"
   fi
 

common/autoconf/spec.gmk.in

@@ -314,6 +314,10 @@ COMPILER_SUPPORTS_TARGET_BITS_FLAG=@COMPILER_SUPPORTS_TARGET_BITS_FLAG@
 # Option used to pass a command file to the compiler
 COMPILER_COMMAND_FILE_FLAG:=@COMPILER_COMMAND_FILE_FLAG@
 
+# Option for specifying a file which saves the binder commands
+# produced by the link step (for debugging, currently AIX only)
+COMPILER_BINDCMD_FILE_FLAG:=@COMPILER_BINDCMD_FILE_FLAG@
+
 CC_OUT_OPTION:=@CC_OUT_OPTION@
 EXE_OUT_OPTION:=@EXE_OUT_OPTION@
 LD_OUT_OPTION:=@LD_OUT_OPTION@

make/common/NativeCompilation.gmk

@@ -771,6 +771,11 @@ define SetupNativeCompilationBody
       $1_EXTRA_LDFLAGS += "-implib:$$($1_OBJECT_DIR)/$$($1_LIBRARY).lib"
     endif
 
+    # Create loadmap on AIX. Helps in diagnosing some problems.
+    ifneq ($(COMPILER_BINDCMD_FILE_FLAG),)
+      $1_EXTRA_LDFLAGS += $(COMPILER_BINDCMD_FILE_FLAG)$$($1_OBJECT_DIR)/$$($1_NOSUFFIX).loadmap
+    endif
+
     $1_EXTRA_LIBS += $(GLOBAL_LIBS)
 
     $1_VARDEPS := $$($1_LD) $$($1_SYSROOT_LDFLAGS) $$($1_LDFLAGS) $$($1_EXTRA_LDFLAGS) \