Add support for *BSD to makefiles

Updates the makefiles to set up for compilation and building for *BSD.
This is a cleaned up diff towards the existing BSD port from the
battleblow/jdk repository.

Some parts have been held back for later PRs, mainly because I expect
them to require more thorough review. (Some is also probably outdated,
and we'll go through those first.)

This work is sponsored by The FreeBSD Foundation.

Co-authored-by: Greg Lewis <glewis@openjdk.org>
Co-authored-by: Kurt Miller <bsdkurt@openjdk.org>

Author: 3 people

make/Hsdis.gmk

@@ -62,6 +62,8 @@ ifeq ($(HSDIS_BACKEND), llvm)
     LLVM_OS := apple-darwin
   else ifeq ($(call isTargetOs, windows), true)
     LLVM_OS := pc-windows-msvc
+  else ifeq ($(call isTargetOsEnv, bsd.freebsd), true)
+    LLVM_OS := unknown-freebsd
   else
     $(error No support for LLVM on this platform)
   endif

make/RunTestsPrebuilt.gmk

@@ -169,6 +169,8 @@ else
     OPENJDK_TARGET_OS := linux
   else ifeq ($(UNAME_OS), Darwin)
     OPENJDK_TARGET_OS := macosx
+  else ifneq ($(findstring BSD,$(UNAME_OS)),)
+    OPENJDK_TARGET_OS := bsd
   else
     OPENJDK_TARGET_OS := $(UNAME_OS)
   endif
@@ -214,6 +216,9 @@ ifeq ($(OPENJDK_TARGET_OS), linux)
 else ifeq ($(OPENJDK_TARGET_OS), macosx)
   NUM_CORES := $(shell /usr/sbin/sysctl -n hw.ncpu)
   MEMORY_SIZE := $(shell $(EXPR) `/usr/sbin/sysctl -n hw.memsize` / 1024 / 1024)
+else ifeq ($(OPENJDK_TARGET_OS), bsd)
+  NUM_CORES := $(shell /sbin/sysctl -n hw.ncpu)
+  MEMORY_SIZE := $(shell $(EXPR) `/sbin/sysctl -n hw.physmem` / 1024 / 1024)
 else ifeq ($(OPENJDK_TARGET_OS), windows)
   NUM_CORES := $(NUMBER_OF_PROCESSORS)
   MEMORY_SIZE := $(shell \

make/common/JdkNativeCompilation.gmk

@@ -234,6 +234,10 @@ define AddJdkLibrary
   ifeq ($(call isTargetOs, aix)+$$($1_$2_MODULE):$$($1_$2_NAME), true+java.base:jli)
     $1_$2_STATIC_LIBRARY := true
   endif
+  ifeq ($(call isTargetOsEnv, bsd.openbsd)+$$($1_$2_MODULE):$$($1_$2_NAME), true+java.base:jli)
+    $1_$2_STATIC_LIBRARY := true
+    $1_LIBS += $(LIBZ_LIBS) $(LIBPTHREAD)
+  endif
   ifeq ($$($1_$2_MODULE):$$($1_$2_NAME), gtest:gtest)
     $1_$2_STATIC_LIBRARY := true
   endif

make/common/Utils.gmk

@@ -196,6 +196,9 @@ isTargetOs = \
 isTargetOsType = \
   $(strip $(if $(filter $(OPENJDK_TARGET_OS_TYPE), $1), true, false))
 
+isTargetOsEnv = \
+  $(strip $(if $(filter $(OPENJDK_TARGET_OS_ENV), $1), true, false))
+
 isTargetCpu = \
   $(strip $(if $(filter $(OPENJDK_TARGET_CPU), $1), true, false))
 

make/common/modules/LauncherCommon.gmk

@@ -182,6 +182,7 @@ define SetupBuildLauncherBody
       DISABLED_WARNINGS_clang := unused-function, \
       LDFLAGS := $$($1_LDFLAGS), \
       LDFLAGS_linux := $$(call SetExecutableOrigin,/../lib), \
+      LDFLAGS_bsd := $$(call SetExecutableOrigin,/../lib), \
       LDFLAGS_macosx := $$(call SetExecutableOrigin,/../lib), \
       LDFLAGS_FILTER_OUT := $$($1_LDFLAGS_FILTER_OUT), \
       JDK_LIBS := $$($1_JDK_LIBS), \

make/common/native/Link.gmk

@@ -185,7 +185,7 @@ define CreateDynamicLibraryOrExecutable
 	        $$($1_SYSROOT_LDFLAGS) -o $$($1_TARGET) $$($1_LD_OBJ_ARG) \
 	        $$($1_LIBS) $$($1_EXTRA_LIBS))
         ifeq ($$($1_CREATE_DEBUGINFO), true)
-          ifeq ($(call isTargetOs, linux), true)
+          ifeq ($(call isTargetOs, linux bsd), true)
             # This cannot be run separately since it updates the original target
             # file.
 	    $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_create_debuginfo, \
@@ -206,14 +206,17 @@ define CreateDynamicLibraryOrExecutable
 	      $$($1_STRIP) $$($1_STRIPFLAGS) $$($1_TARGET))
         endif
         ifeq ($$($1_CREATE_DEBUGINFO), true)
-          ifeq ($(call isTargetOs, linux), true)
+          ifeq ($(call isTargetOs, linux bsd), true)
             # Run this after strip is called, since strip can sometimes mangle
             # the embedded debuglink, which we want to avoid.
 	    $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_add_debuginfo_link, \
 	        $(CD) $$($1_SYMBOLS_DIR) && \
 	            $$($1_OBJCOPY) --add-gnu-debuglink=$$($1_DEBUGINFO_FILES) $$($1_TARGET))
           endif
         endif
+        ifeq ($(OPENJDK_TARGET_OS_ENV), bsd.netbsd)
+          /usr/sbin/paxctl +m $$@
+        endif
         ifneq ($(MACOSX_CODESIGN_MODE), disabled)
           # Remove signature explicitly first to avoid warnings if the linker
           # added a default adhoc signature.

make/devkit/createAutoconfBundle.sh

@@ -51,6 +51,9 @@ case `uname -s` in
     Linux)
         os=linux
         ;;
+    *BSD)
+        os=bsd
+        ;;
     CYGWIN*)
         os=cygwin
         ;;

make/devkit/createTidyBundle.sh

@@ -55,7 +55,7 @@ mkdir -p "$SRC_DIR/$BUILD_DIR"
 cd "$SRC_DIR/$BUILD_DIR"
 
 case $OS_NAME in
-  Linux|Darwin)
+  Linux|Darwin|*BSD)
     echo "Building Tidy HTML5 for Unix-like platform ($OS_NAME)..."
 
     CMAKE_ARCH_OPTIONS=""

make/hotspot/gensrc/GensrcAdlc.gmk

@@ -45,6 +45,8 @@ ifeq ($(call check-jvm-feature, compiler2), true)
   else ifeq ($(call isBuildOs, windows), true)
     ADLC_CFLAGS := -nologo -EHsc
     ADLC_CFLAGS_WARNINGS := -W3 -D_CRT_SECURE_NO_WARNINGS
+  else ifeq ($(call isBuildOs, bsd), true)
+    ADLC_CFLAGS := -fno-exceptions -D_ALLBSD_SOURCE=1 -D_BSDONLY_SOURCE
   endif
 
   # Set the C++ standard
@@ -106,6 +108,8 @@ ifeq ($(call check-jvm-feature, compiler2), true)
     ifeq ($(HOTSPOT_TARGET_CPU_ARCH), aarch64)
       ADLCFLAGS += -DR18_RESERVED
     endif
+  else ifeq ($(call isTargetOs, bsd), true)
+    ADLCFLAGS += -D_ALLBSD_SOURCE=1 -D_BSDONLY_SOURCE
   else ifeq ($(call isTargetOs, windows), true)
     ADLCFLAGS += -D_WIN64=1
     ifeq ($(HOTSPOT_TARGET_CPU_ARCH), aarch64)

make/hotspot/gensrc/GensrcDtrace.gmk

@@ -32,7 +32,7 @@ ifeq ($(INCLUDE), true)
 
 ifeq ($(call check-jvm-feature, dtrace), true)
 
-  ifeq ($(call isTargetOs, macosx), true)
+  ifeq ($(call isTargetOs, macosx bsd), true)
     DTRACE_CPP_FLAGS := -D_LP64 -x c
   else ifeq ($(call isTargetOs, linux), true)
     DTRACE_CPP_FLAGS := -x c