SubDir OBOS_TOP src tools gensyscalls ;

# build gensyscallinfos

BuildPlatformMain gensyscallinfos : gensyscallinfos.cpp ;
LinkSharedOSLibs gensyscallinfos : $(BUILD_LIBSTDC++) ;


# generate the syscall infos source file

SetupObjectsDir ;

local syscallsHeader = [ FGristFiles syscalls.h ] ;
SEARCH on $(syscallsHeader) = [ FDirName $(OBOS_TOP) headers private kernel ] ;

local syscallsHeaderPP = [ FGristFiles syscalls.h.pp ] ;
LOCATE on $(syscallsHeaderPP) = $(LOCATE_SOURCE) ;

local syscallInfos = [ FGristFiles gensyscalls_infos.c ] ;
LOCATE on $(syscallInfos) = $(LOCATE_SOURCE) ;

rule GenSyscallInfos {
	Depends $(1) : gensyscallinfos $(2) ;
	GenSyscallInfos1 $(1) : gensyscallinfos $(2) ;
}

actions GenSyscallInfos1 {
	$(2[1]) $(2[2]) $(1)
}

GenSyscallInfos $(syscallInfos) : $(syscallsHeaderPP) ;


# build gensyscalls

BuildPlatformMain gensyscalls : gensyscalls.cpp $(syscallInfos:S=$(SUFOBJ)) ;
LinkSharedOSLibs gensyscalls : $(BUILD_LIBSTDC++) ;
UsePrivateObjectHeaders gensyscalls.cpp : kernel ;
UseArchObjectHeaders gensyscalls.cpp : $(OBOS_ARCH) ;


# generate the output files

# place them where there are needed
MakeLocate <syscalls>syscalls.S.inc : [ FObjectsDir src kernel libroot os ] ;
MakeLocate <syscalls>syscall_dispatcher.h : [ FObjectsDir src kernel core ] ;

Depends <dir>objects/x86.R1/kernel/core : <dir>objects/x86.R1/kernel ;

rule GenSyscallsFile {
	Depends $(1) : gensyscalls ;
	GenSyscallsFile1 $(1) : gensyscalls ;
}

actions GenSyscallsFile1 {
	$(2[1]) -c $(1)
}

rule GenSyscallsDispatcher {
	Depends $(1) : gensyscalls ;
	GenSyscallsDispatcher1 $(1) : gensyscalls ;
}

actions GenSyscallsDispatcher1 {
	$(2[1]) -d $(1)
}

GenSyscallsFile <syscalls>syscalls.S.inc ;
GenSyscallsDispatcher <syscalls>syscall_dispatcher.h ;


# preprocess the syscalls header

SetupIncludes ;
UsePrivateHeaders kernel ;
UseArchHeaders $(OBOS_ARCH) ;

rule Preprocess
{
	Depends $(<) : $(>) ;

	HDRS on $(<) = $(SEARCH_SOURCE) $(SUBDIRHDRS) $(HDRS) ;
	HDRRULE on $(>) = HdrRule ;
	HDRSCAN on $(>) = $(HDRPATTERN) ;
	HDRSEARCH on $(>) = 
		$(SEARCH_SOURCE:E) $(SUBDIRHDRS) $(HDRS) $(STDHDRS) ;

	HDRGRIST on $(>) = $(HDRGRIST) ;

	DEFINES on $(<) += $(DEFINES) ;

	CCFLAGS on $(<) += $(CCFLAGS) $(SUBDIRCCFLAGS) $(OPTIM)
					   [ FDefines GEN_SYSCALL_INFOS_PROCESSING ] ;

	CCHDRS on $(<) = [ on $(<) FIncludes $(HDRS) ] ;
	CCDEFS on $(<) = [ on $(<) FDefines $(DEFINES) ] ;
}

actions Preprocess 
{
	$(CC) -E "$(2)" $(CCFLAGS) $(CCDEFS) $(CCHDRS) -o "$(1)" ;
}

Preprocess $(syscallsHeaderPP) : $(syscallsHeader) ;


# compile the syscall infos source file

Object $(syscallInfos:S=$(SUFOBJ)) : $(syscallInfos) ;