8347909: Automatic precompiled.hpp inclusion

Reviewed-by: lkorinth, erikj, dholmes, ihse

Author: stefank

make/common/native/CompileFile.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2025, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -253,11 +253,13 @@ define CreatePrecompiledHeader
         $$(eval $$(call CreateCompiledNativeFile, $1_$$(notdir $$($1_GENERATED_PCH_SRC)), \
             FILE := $$($1_GENERATED_PCH_SRC), \
             BASE := $1, \
-            EXTRA_CXXFLAGS := -Fp$$($1_PCH_FILE) -Yc$$(notdir $$($1_PRECOMPILED_HEADER)), \
+            EXTRA_CXXFLAGS := -I$$(dir $$($1_PRECOMPILED_HEADER)) -Fp$$($1_PCH_FILE) \
+                -Yc$$(notdir $$($1_PRECOMPILED_HEADER)), \
         ))
 
         $1_USE_PCH_FLAGS := \
-            -Fp$$($1_PCH_FILE) -Yu$$(notdir $$($1_PRECOMPILED_HEADER))
+            -FI$$(notdir $$($1_PRECOMPILED_HEADER)) -Fp$$($1_PCH_FILE) \
+            -Yu$$(notdir $$($1_PRECOMPILED_HEADER))
 
         $$($1_ALL_OBJS): $$($1_GENERATED_PCH_OBJ)
 
@@ -271,7 +273,8 @@ define CreatePrecompiledHeader
       else ifneq ($(findstring $(TOOLCHAIN_TYPE), gcc clang), )
         ifeq ($(TOOLCHAIN_TYPE), gcc)
           $1_PCH_FILE := $$($1_OBJECT_DIR)/precompiled/$$(notdir $$($1_PRECOMPILED_HEADER)).gch
-          $1_USE_PCH_FLAGS := -I$$($1_OBJECT_DIR)/precompiled
+          $1_USE_PCH_FLAGS := -I$$($1_OBJECT_DIR)/precompiled \
+              -include $$(notdir $$($1_PRECOMPILED_HEADER))
         else ifeq ($(TOOLCHAIN_TYPE), clang)
           $1_PCH_FILE := $$($1_OBJECT_DIR)/precompiled/$$(notdir $$($1_PRECOMPILED_HEADER)).pch
           $1_USE_PCH_FLAGS := -include-pch $$($1_PCH_FILE)

make/hotspot/lib/JvmFlags.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2023, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 2025, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -43,7 +43,6 @@ JVM_SRC_DIRS += $(call uniq, $(wildcard $(foreach d, $(JVM_SRC_ROOTS), \
 
 JVM_CFLAGS_INCLUDES += \
     $(patsubst %,-I%,$(JVM_SRC_DIRS)) \
-    -I$(TOPDIR)/src/hotspot/share/precompiled \
     -I$(TOPDIR)/src/hotspot/share/include \
     -I$(TOPDIR)/src/hotspot/os/$(HOTSPOT_TARGET_OS_TYPE)/include \
     -I$(SUPPORT_OUTPUTDIR)/modules_include/java.base \