opnsense-src/sys/modules/linux/Makefile
Alex Richardson 1a18ab420b Allow overriding the tool used for stripping binaries
Since the make variable STRIP is already used for other purposes, this
uses STRIPBIN (which is also used for the same purpose by install(1).
This allows using LLVM objcopy to strip binaries instead of the in-tree
elftoolchain objcopy. We make use of this in CheriBSD since passing
binaries generated by our toolchain to elftoolchain strip sometimes results
in assertion failures.

This allows working around https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248516
by specifying STRIPBIN=/path/to/llvm-strip

Obtained from:	CheriBSD
Reviewed By:	emaste, brooks
Differential Revision: https://reviews.freebsd.org/D25988
2020-08-11 16:46:27 +00:00

87 lines
2.7 KiB
Makefile

# $FreeBSD$
.if ${MACHINE_CPUARCH} == "amd64"
SFX= 32
CFLAGS+=-DCOMPAT_FREEBSD32 -DCOMPAT_LINUX32
.endif
.PATH: ${SRCTOP}/sys/compat/linux ${SRCTOP}/sys/${MACHINE_CPUARCH}/linux${SFX}
VDSO= linux${SFX}_vdso
KMOD= linux
SRCS= linux_fork.c linux${SFX}_dummy.c linux_file.c linux_event.c \
linux_futex.c linux_getcwd.c linux_ioctl.c linux_ipc.c \
linux${SFX}_machdep.c linux_misc.c linux_signal.c \
linux_socket.c linux_stats.c linux_sysctl.c linux${SFX}_sysent.c \
linux${SFX}_sysvec.c linux_uid16.c linux_time.c \
linux_timer.c linux_vdso.c \
opt_inet6.h opt_compat.h opt_posix.h opt_usb.h vnode_if.h \
device_if.h bus_if.h
.if ${MACHINE_CPUARCH} == "amd64"
SRCS+= linux${SFX}_support.s
.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
.endif
OBJS= ${VDSO}.so
.if ${MACHINE_CPUARCH} == "i386"
SRCS+= linux_ptrace.c imgact_linux.c linux_util.c linux_mib.c linux_mmap.c \
linux_emul.c linux_errno.c opt_cpu.h linux.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${SFX}_assym.h: linux${SFX}_genassym.o
sh ${SYSDIR}/kern/genassym.sh linux${SFX}_genassym.o > ${.TARGET}
linux${SFX}_locore.o: linux${SFX}_assym.h assym.inc
${CC} -x assembler-with-cpp -DLOCORE -m32 -shared -s \
-pipe -I. -I${SYSDIR} ${WERROR} -Wall -fno-common -nostdinc -nostdlib \
-fno-omit-frame-pointer -fPIC \
-Wl,-T${SRCTOP}/sys/${MACHINE_CPUARCH}/linux${SFX}/${VDSO}.lds.s \
-Wl,-soname=${VDSO}.so.1,--eh-frame-hdr,-warn-common \
${.IMPSRC} -o ${.TARGET}
.if ${MACHINE_CPUARCH} == "amd64"
linux${SFX}_support.o: linux${SFX}_assym.h assym.inc
${CC} -c -x assembler-with-cpp -DLOCORE ${CFLAGS} \
${.IMPSRC} -o ${.TARGET}
${VDSO}.so: linux${SFX}_locore.o
${OBJCOPY} --input-target binary --output-target elf64-x86-64-freebsd \
--binary-architecture i386 linux${SFX}_locore.o ${.TARGET}
${STRIPBIN} -N _binary_linux${SFX}_locore_o_size ${.TARGET}
.else
${VDSO}.so: linux${SFX}_locore.o
${OBJCOPY} --input-target binary --output-target elf32-i386-freebsd \
--binary-architecture i386 linux${SFX}_locore.o ${.TARGET}
${STRIPBIN} -N _binary_linux_locore_o_size ${.TARGET}
.endif
linux${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
.include <bsd.kmod.mk>