2286fe7635
compiled with stack protector. Use libssp_nonshared library to pull __stack_chk_fail_local symbol into each library that needs it instead of pulling it from libc. GCC generates local calls to this function which result in absolute relocations put into position-independent code segment, making dynamic loader do extra work every time given shared library is being relocated and making affected text pages non-shareable. Reviewed by: kib Approved by: re (kib)
58 lines
1.4 KiB
Makefile
58 lines
1.4 KiB
Makefile
# $FreeBSD$
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.include <bsd.own.mk>
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MK_SSP= no
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PROG?= ld-elf.so.1
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SRCS= rtld_start.S \
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reloc.c rtld.c rtld_lock.c map_object.c \
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malloc.c xmalloc.c debug.c libmap.c
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MAN= rtld.1
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CSTD?= gnu99
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CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD
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CFLAGS+= -I${.CURDIR}/${MACHINE_ARCH} -I${.CURDIR}
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LDFLAGS+= -nostdlib -e .rtld_start
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INSTALLFLAGS= -C -b
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PRECIOUSPROG=
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BINDIR= /libexec
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SYMLINKS= ${BINDIR}/${PROG} /usr/libexec/${PROG}
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MLINKS= rtld.1 ld-elf.so.1.1 \
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rtld.1 ld.so.1
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CFLAGS+= -fpic -DPIC
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LDFLAGS+= -shared -Wl,-Bsymbolic
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DPADD= ${LIBC_PIC}
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LDADD= -lc_pic -lssp_nonshared
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.if ${MACHINE_ARCH} != "ia64"
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.if ${MK_SYMVER} == "yes"
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LIBCDIR= ${.CURDIR}/../../lib/libc
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VERSION_DEF= ${LIBCDIR}/Versions.def
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SYMBOL_MAPS= ${.CURDIR}/Symbol.map
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VERSION_MAP= Version.map
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LDFLAGS+= -Wl,--version-script=${VERSION_MAP}
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${PROG}: ${VERSION_MAP}
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.if exists(${.CURDIR}/${MACHINE_ARCH}/Symbol.map)
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SYMBOL_MAPS+= ${.CURDIR}/${MACHINE_ARCH}/Symbol.map
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.endif
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.endif
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.endif
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.if exists(${.CURDIR}/${MACHINE_ARCH}/Makefile.inc)
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.include "${.CURDIR}/${MACHINE_ARCH}/Makefile.inc"
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.endif
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# Since moving rtld-elf to /libexec, we need to create a symlink.
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# Fixup the existing binary that's there so we can symlink over it.
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beforeinstall:
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.if exists(${DESTDIR}/usr/libexec/${PROG})
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-chflags noschg ${DESTDIR}/usr/libexec/${PROG}
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.endif
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.PATH: ${.CURDIR}/${MACHINE_ARCH}
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.include <bsd.symver.mk>
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.include <bsd.prog.mk>
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