FreeBSD/Linux Kernel Cross Reference
sys/modules/linux/Makefile

     # $FreeBSD$
     
     .if ${MACHINE_CPUARCH} == "amd64"
     SFX= 32
     CFLAGS+=-DCOMPAT_FREEBSD32 -DCOMPAT_LINUX32
     .endif
     
     .PATH: ${SRCTOP}/sys/compat/linux ${SRCTOP}/sys/${MACHINE_CPUARCH}/linux${SFX}
     .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
    .PATH: ${SRCTOP}/sys/x86/linux
    .endif
    
    KMOD=   linux
    SRCS=   linux${SFX}_dummy_machdep.c \
            linux_event.c \
            linux_file.c \
            linux_fork.c \
            linux_futex.c \
            linux_getcwd.c \
            linux_ioctl.c \
            linux_ipc.c \
            linux${SFX}_machdep.c \
            linux_misc.c \
            linux_rseq.c \
            linux_signal.c \
            linux_socket.c \
            linux_stats.c \
            linux${SFX}_syscalls.c \
            linux_sysctl.c \
            linux${SFX}_sysent.c \
            linux${SFX}_sysvec.c \
            linux_time.c \
            linux_timer.c \
            linux_uid16.c \
            linux_vdso.c \
            opt_compat.h \
            opt_inet6.h \
            opt_ktrace.h \
            opt_posix.h \
            opt_usb.h \
            bus_if.h \
            device_if.h \
            vnode_if.h
    .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
    SRCS+=  linux_dummy_x86.c
    VDSODEPS=linux_vdso_gettc_x86.inc
    .endif
    .if ${MACHINE_CPUARCH} == "amd64"
    SRCS+=  linux${SFX}_support.S
    SRCS+=  linux_elf32.c
    .else
    SRCS+=  linux_copyout.c
    .endif
    DPSRCS= assym.inc linux${SFX}_genassym.c
    
    # XXX: for assym.inc
    SRCS+=  opt_kstack_pages.h opt_nfs.h opt_hwpmc_hooks.h
    .if ${MACHINE_CPUARCH} == "i386"
    SRCS+=  opt_apic.h opt_cpu.h
    .endif
    
    OBJS=   linux${SFX}_vdso.so
    
    .if ${MACHINE_CPUARCH} == "i386"
    SRCS+=  imgact_linux.c \
            linux.c \
            linux_dummy.c \
            linux_emul.c \
            linux_errno.c \
            linux_mib.c \
            linux_mmap.c \
            linux_ptrace_machdep.c \
            linux_util.c \
            linux_vdso_selector_x86.c \
            linux_x86.c
    .endif
    
    .if ${MACHINE_CPUARCH} == "i386"
    EXPORT_SYMS=
    EXPORT_SYMS+=   linux_emul_path
    EXPORT_SYMS+=   linux_get_osname
    EXPORT_SYMS+=   linux_get_osrelease
    EXPORT_SYMS+=   linux_ioctl_register_handler
    EXPORT_SYMS+=   linux_ioctl_unregister_handler
    .endif
    
    CLEANFILES=     linux${SFX}_assym.h linux${SFX}_genassym.o linux${SFX}_locore.o \
                    genassym.o linux${SFX}_vdso_gtod.o linux${SFX}_vdso.so.o
    
    linux${SFX}_assym.h: linux${SFX}_genassym.o
            sh ${SYSDIR}/kern/genassym.sh linux${SFX}_genassym.o > ${.TARGET}
    
    .if ${MACHINE_CPUARCH} == "amd64"
    VDSOFLAGS=-DCOMPAT_FREEBSD32 -DCOMPAT_LINUX32 -m32
    .else
    VDSOFLAGS=-mregparm=0
    .endif
    
    linux${SFX}_locore.o: linux${SFX}_assym.h assym.inc
           ${CC} -c -x assembler-with-cpp -DLOCORE -fPIC -pipe -O2 -Werror \
           -msoft-float \
           -fno-common -nostdinc -fasynchronous-unwind-tables \
           -fno-omit-frame-pointer -foptimize-sibling-calls ${VDSOFLAGS} \
           -fno-stack-protector -I. -I${SYSDIR} -I${SRCTOP}/include \
               ${.IMPSRC} -o ${.TARGET}
   
   linux${SFX}_vdso_gtod.o: linux_vdso_gtod.inc ${VDSODEPS}
           ${CC} -c -fPIC -pipe -O2 -Werror -msoft-float \
           -fno-common -nostdinc -fasynchronous-unwind-tables \
           -fno-omit-frame-pointer -foptimize-sibling-calls ${VDSOFLAGS} \
           -fno-stack-protector -I. -I${SYSDIR} -I${SRCTOP}/include \
               ${.IMPSRC} -o ${.TARGET}
   
   linux${SFX}_vdso.so.o: linux${SFX}_locore.o linux${SFX}_vdso_gtod.o
           ${LD} -m elf_i386 --shared --eh-frame-hdr -soname=linux-gate.so.1 \
           --no-undefined --hash-style=both -warn-common -nostdlib \
           --strip-debug -s --build-id=sha1 --Bsymbolic \
           -T${SRCTOP}/sys/${MACHINE}/linux${SFX}/linux${SFX}_vdso.lds.s \
           -o ${.TARGET} ${.ALLSRC:M*.o}
   
   .if ${MACHINE_CPUARCH} == "amd64"
   OBJCOPY_TARGET=--output-target elf64-x86-64-freebsd --binary-architecture i386
   .elif ${MACHINE_CPUARCH} == "i386"
   OBJCOPY_TARGET=--output-target elf32-i386-freebsd --binary-architecture i386
   .else
   .error ${MACHINE_CPUARCH} not yet supported by linux
   .endif
   
   linux${SFX}_vdso.so: linux${SFX}_vdso.so.o
           ${OBJCOPY} --input-target binary ${OBJCOPY_TARGET} \
               linux${SFX}_vdso.so.o ${.TARGET}
           ${STRIPBIN} -N _binary_linux${SFX}_vdso_so_o_size ${.TARGET}
   
   .if ${MACHINE_CPUARCH} == "amd64"
   linux${SFX}_support.o: linux${SFX}_support.S linux${SFX}_assym.h assym.inc
           ${CC} -c -x assembler-with-cpp -DLOCORE ${CFLAGS} \
               ${.ALLSRC:M*.S:u} -o ${.TARGET}
   .endif
   
   linux${SFX}_genassym.o: offset.inc
           ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon ${.IMPSRC}
   
   .if !defined(KERNBUILDDIR)
   .warning Building Linuxulator outside of a kernel does not make sense
   .endif
   
   EXPORT_SYMS=    YES
   
   .include <bsd.kmod.mk>

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