Optionally build glue code for bootstrap_stage0 platform.

build/jam/MainBuildRules

@@ -760,3 +760,31 @@ rule BuildPlatformStaticLibraryPIC target : sources : otherObjects
 
 	BuildPlatformStaticLibrary $(target) : $(sources) : $(otherObjects) ;
 }
+
+rule BootstrapStage0PlatformObjects sources : separateFromStandardSiblings
+{
+	# BootstrapStage0PlatformObjects <sources> : <separateFromStandardSiblings>
+	# Builds objects from the given sources for stage0 of the bootstrap process.
+	# <sources> The sources from which objects should be created.
+	# <separateFromStandardSiblings> Pass 'true' if the same objects are built
+	# in a different context, too, so that a separate grist and target location
+	# is required. This defaults to ''.
+	local source ;
+	for source in $(sources) {
+		local objectGrist ;
+		if $(separateFromStandardSiblings) = true {
+			objectGrist = "bootstrap!$(SOURCE_GRIST)" ;
+		} else {
+			objectGrist = $(SOURCE_GRIST) ;
+		}
+		local object = $(source:S=$(SUFOBJ):G=$(objectGrist)) ;
+		PLATFORM on $(object) = bootstrap_stage0 ;
+		SUPPORTED_PLATFORMS on $(object) = bootstrap_stage0 ;
+		if $(separateFromStandardSiblings) = true {
+			MakeLocate $(object) : [
+				FDirName $(TARGET_DEBUG_$(DEBUG)_LOCATE_TARGET) bootstrap
+			] ;
+		}
+		Object $(object) : $(source) ;
+	}
+}

src/system/glue/Jamfile

@@ -5,14 +5,21 @@ for architectureObject in [ MultiArchSubDirSetup ] {
 	on $(architectureObject) {
 		UsePrivateSystemHeaders ;
 
-		Objects
+		local sources =
 			init_term_dyn.c
 			start_dyn.c
 			haiku_version_glue.c
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }
 
+
 local arch ;
 for arch in $(TARGET_ARCHS) {
 	SubInclude HAIKU_TOP src system glue arch $(arch) ;

src/system/glue/arch/arm/Jamfile

@@ -3,9 +3,17 @@ SubDir HAIKU_TOP src system glue arch arm ;
 local architectureObject ;
 for architectureObject in [ MultiArchSubDirSetup arm ] {
 	on $(architectureObject) {
-		Objects
+		UsePrivateSystemHeaders ;
+
+		local sources =
 			crti.S
 			crtn.S
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }

src/system/glue/arch/m68k/Jamfile

@@ -3,9 +3,17 @@ SubDir HAIKU_TOP src system glue arch m68k ;
 local architectureObject ;
 for architectureObject in [ MultiArchSubDirSetup m68k ] {
 	on $(architectureObject) {
-		Objects
+		UsePrivateSystemHeaders ;
+
+		local sources =
 			crti.S
 			crtn.S
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }

src/system/glue/arch/ppc/Jamfile

@@ -3,9 +3,17 @@ SubDir HAIKU_TOP src system glue arch ppc ;
 local architectureObject ;
 for architectureObject in [ MultiArchSubDirSetup ppc ] {
 	on $(architectureObject) {
-		Objects
+		UsePrivateSystemHeaders ;
+
+		local sources =
 			crti.S
 			crtn.S
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }

src/system/glue/arch/x86/Jamfile

@@ -3,9 +3,17 @@ SubDir HAIKU_TOP src system glue arch x86 ;
 local architectureObject ;
 for architectureObject in [ MultiArchSubDirSetup x86 x86_gcc2 ] {
 	on $(architectureObject) {
-		Objects
+		UsePrivateSystemHeaders ;
+
+		local sources =
 			crti.S
 			crtn.S
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }

src/system/glue/arch/x86_64/Jamfile

@@ -5,9 +5,15 @@ for architectureObject in [ MultiArchSubDirSetup x86_64 ] {
 	on $(architectureObject) {
 		UsePrivateSystemHeaders ;
 
-		Objects
+		local sources =
 			crti.S
 			crtn.S
 			;
+		Objects $(sources) ;
+
+		if $(HAIKU_BUILD_TYPE) = bootstrap {
+			# build a version for stage0 of the bootstrap process
+			BootstrapStage0PlatformObjects $(sources) : true ;
+		}
 	}
 }