freebsd-skq/lib/csu/arm/Makefile
Andrew Turner 84eacaf728 Use -mlong-calls to build crt1.o and gcrt1.o. This tells the compiler to
generate code to branch based on an address in a register. This allows us
to have binaries larger than the 32MiB limit of a branch instruction.

The main use of this is with clang. Clang 3.8.0 has been shown to be larger
than the above limit.
2016-01-10 23:41:31 +00:00

48 lines
1.1 KiB
Makefile

# $FreeBSD$
.PATH: ${.CURDIR}/../common
SRCS= crt1.c crti.S crtn.S
OBJS= ${SRCS:N*.h:R:S/$/.o/g}
OBJS+= Scrt1.o gcrt1.o
CFLAGS+= -I${.CURDIR}/../common \
-I${.CURDIR}/../../libc/include
STATIC_CFLAGS+= -mlong-calls
FILES= ${OBJS}
FILESMODE= ${LIBMODE}
FILESOWN= ${LIBOWN}
FILESGRP= ${LIBGRP}
FILESDIR= ${LIBDIR}
# These FILES qualify as libraries for the purpose of LIBRARIES_ONLY.
.undef LIBRARIES_ONLY
CLEANFILES= ${OBJS}
CLEANFILES+= crt1.s gcrt1.s Scrt1.s
# See the comment in lib/csu/common/crtbrand.c for the reason crt1.c is not
# directly compiled to .o files.
crt1.s: crt1.c
${CC} ${CFLAGS} ${STATIC_CFLAGS} -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed ${SED_FIX_NOTE} ${.TARGET}
crt1.o: crt1.s
${CC} ${ACFLAGS} -c -o ${.TARGET} crt1.s
gcrt1.s: crt1.c
${CC} ${CFLAGS} ${STATIC_CFLAGS} -DGCRT -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed ${SED_FIX_NOTE} ${.TARGET}
gcrt1.o: gcrt1.s
${CC} ${ACFLAGS} -c -o ${.TARGET} gcrt1.s
Scrt1.s: crt1.c
${CC} ${CFLAGS} -fPIC -DPIC -S -o ${.TARGET} ${.CURDIR}/crt1.c
sed ${SED_FIX_NOTE} ${.TARGET}
Scrt1.o: Scrt1.s
${CC} ${ACFLAGS} -c -o ${.TARGET} Scrt1.s
.include <bsd.lib.mk>