5608fd23c2
1. 50+% of NO_PIE use is fixed by adding -fPIC to INTERNALLIB and other build-only utility libraries. 2. Another 40% is fixed by generating _pic.a variants of various libraries. 3. Some of the NO_PIE use is a bit absurd as it is disabling PIE (and ASLR) where it never would work anyhow, such as csu or loader. This suggests there may be better ways of adding support to the tree. Many of these cases can be fixed such that -fPIE will work but there is really no reason to have it in those cases. 4. Some of the uses are working around hacks done to some Makefiles that are really building libraries but have been using bsd.prog.mk because the code is cleaner. Had they been using bsd.lib.mk then NO_PIE would not have been needed. We likely do want to enable PIE by default (opt-out) for non-tree consumers (such as ports). For in-tree though we probably want to only enable PIE (opt-in) for common attack targets such as remote service daemons and setuid utilities. This is also a great performance compromise since ASLR is expected to reduce performance. As such it does not make sense to enable it in all utilities such as ls(1) that have little benefit to having it enabled. Reported by: kib
280 lines
6.1 KiB
Makefile
280 lines
6.1 KiB
Makefile
# from: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91
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# $FreeBSD$
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.include <bsd.init.mk>
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.include <bsd.compiler.mk>
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.SUFFIXES: .out .o .c .cc .cpp .cxx .C .m .y .l .ln .s .S .asm
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# XXX The use of COPTS in modern makefiles is discouraged.
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.if defined(COPTS)
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CFLAGS+=${COPTS}
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.endif
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.if ${MK_ASSERT_DEBUG} == "no"
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CFLAGS+= -DNDEBUG
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NO_WERROR=
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.endif
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.if defined(DEBUG_FLAGS)
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CFLAGS+=${DEBUG_FLAGS}
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CXXFLAGS+=${DEBUG_FLAGS}
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.if ${MK_CTF} != "no" && ${DEBUG_FLAGS:M-g} != ""
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CTFFLAGS+= -g
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.endif
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.endif
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.if defined(PROG_CXX)
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PROG= ${PROG_CXX}
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.endif
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.if defined(PROG) && target(${PROG})
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MK_DEBUG_FILES= no
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.elif !empty(LDFLAGS:M-Wl,*--oformat,*) || !empty(LDFLAGS:M-static)
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MK_DEBUG_FILES= no
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.endif
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.if defined(CRUNCH_CFLAGS)
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CFLAGS+=${CRUNCH_CFLAGS}
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.else
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.if ${MK_DEBUG_FILES} != "no" && empty(DEBUG_FLAGS:M-g) && \
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empty(DEBUG_FLAGS:M-gdwarf-*)
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CFLAGS+= -g
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CTFFLAGS+= -g
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.endif
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.endif
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.if !defined(DEBUG_FLAGS)
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STRIP?= -s
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.endif
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.if defined(NO_SHARED) && (${NO_SHARED} != "no" && ${NO_SHARED} != "NO")
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LDFLAGS+= -static
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.endif
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.if defined(USEPRIVATELIB)
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LDFLAGS+= -L${_SHLIBDIRPREFIX}${LIBPRIVATEDIR} -rpath ${LIBPRIVATEDIR}
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.endif
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.if ${MK_DEBUG_FILES} != "no"
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PROG_FULL=${PROG}.full
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# Use ${DEBUGDIR} for base system debug files, else .debug subdirectory
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.if defined(BINDIR) && (\
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${BINDIR} == "/bin" ||\
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${BINDIR} == "/libexec" ||\
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${BINDIR} == "/sbin" ||\
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${BINDIR:C%/usr/(bin|bsdinstall|games|libexec|lpr|sendmail|sm.bin|sbin)(/.*)?%/usr/bin%} == "/usr/bin"\
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)
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DEBUGFILEDIR= ${DEBUGDIR}${BINDIR}
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.else
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DEBUGFILEDIR?= ${BINDIR}/.debug
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DEBUGMKDIR=
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.endif
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.else
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PROG_FULL= ${PROG}
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.endif
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.if defined(PROG)
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PROGNAME?= ${PROG}
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.if defined(SRCS)
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OBJS+= ${SRCS:N*.h:R:S/$/.o/g}
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.if target(beforelinking)
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beforelinking: ${OBJS}
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${PROG_FULL}: beforelinking
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.endif
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${PROG_FULL}: ${OBJS}
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.if defined(PROG_CXX)
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${CXX} ${CXXFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
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.else
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${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
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.endif
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.if ${MK_CTF} != "no"
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${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
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.endif
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.else # !defined(SRCS)
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.if !target(${PROG})
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.if defined(PROG_CXX)
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SRCS= ${PROG}.cc
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.else
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SRCS= ${PROG}.c
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.endif
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# Always make an intermediate object file because:
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# - it saves time rebuilding when only the library has changed
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# - the name of the object gets put into the executable symbol table instead of
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# the name of a variable temporary object.
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# - it's useful to keep objects around for crunching.
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OBJS+= ${PROG}.o
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.if target(beforelinking)
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beforelinking: ${OBJS}
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${PROG_FULL}: beforelinking
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.endif
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${PROG_FULL}: ${OBJS}
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.if defined(PROG_CXX)
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${CXX} ${CXXFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
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.else
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${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
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.endif
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.if ${MK_CTF} != "no"
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${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
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.endif
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.endif # !target(${PROG})
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.endif # !defined(SRCS)
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.if ${MK_DEBUG_FILES} != "no"
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${PROG}: ${PROG_FULL} ${PROGNAME}.debug
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${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROGNAME}.debug \
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${PROG_FULL} ${.TARGET}
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${PROGNAME}.debug: ${PROG_FULL}
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${OBJCOPY} --only-keep-debug ${PROG_FULL} ${.TARGET}
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.endif
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.if ${MK_MAN} != "no" && !defined(MAN) && \
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!defined(MAN1) && !defined(MAN2) && !defined(MAN3) && \
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!defined(MAN4) && !defined(MAN5) && !defined(MAN6) && \
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!defined(MAN7) && !defined(MAN8) && !defined(MAN9)
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MAN= ${PROG}.1
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MAN1= ${MAN}
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.endif
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.endif # defined(PROG)
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all: beforebuild .WAIT ${PROG} ${SCRIPTS}
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beforebuild: objwarn
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.if ${MK_MAN} != "no"
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all: _manpages
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.endif
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.if defined(PROG)
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CLEANFILES+= ${PROG}
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.if ${MK_DEBUG_FILES} != "no"
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CLEANFILES+= ${PROG_FULL} ${PROGNAME}.debug
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.endif
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.endif
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.if defined(OBJS)
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CLEANFILES+= ${OBJS}
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.endif
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.include <bsd.libnames.mk>
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.if defined(PROG)
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_EXTRADEPEND:
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.if defined(LDFLAGS) && !empty(LDFLAGS:M-nostdlib)
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.if defined(DPADD) && !empty(DPADD)
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echo ${PROG}: ${DPADD} >> ${DEPENDFILE}
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.endif
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.else
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echo ${PROG}: ${LIBC} ${DPADD} >> ${DEPENDFILE}
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.if defined(PROG_CXX)
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.if ${COMPILER_TYPE} == "clang" && empty(CXXFLAGS:M-stdlib=libstdc++)
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echo ${PROG}: ${LIBCPLUSPLUS} >> ${DEPENDFILE}
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.else
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echo ${PROG}: ${LIBSTDCPLUSPLUS} >> ${DEPENDFILE}
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.endif
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.endif
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.endif
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.endif
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.if !target(install)
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.if defined(PRECIOUSPROG)
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.if !defined(NO_FSCHG)
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INSTALLFLAGS+= -fschg
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.endif
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INSTALLFLAGS+= -S
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.endif
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_INSTALLFLAGS:= ${INSTALLFLAGS}
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.for ie in ${INSTALLFLAGS_EDIT}
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_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}}
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.endfor
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.if !target(realinstall) && !defined(INTERNALPROG)
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realinstall: _proginstall
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.ORDER: beforeinstall _proginstall
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_proginstall:
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.if defined(PROG)
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${INSTALL} ${STRIP} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
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${_INSTALLFLAGS} ${PROG} ${DESTDIR}${BINDIR}/${PROGNAME}
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.if ${MK_DEBUG_FILES} != "no"
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.if defined(DEBUGMKDIR)
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${INSTALL} -T debug -d ${DESTDIR}${DEBUGFILEDIR}
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.endif
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${INSTALL} -T debug -o ${BINOWN} -g ${BINGRP} -m ${DEBUGMODE} \
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${PROGNAME}.debug ${DESTDIR}${DEBUGFILEDIR}/${PROGNAME}.debug
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.endif
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.endif
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.endif # !target(realinstall)
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.if defined(SCRIPTS) && !empty(SCRIPTS)
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realinstall: _scriptsinstall
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.ORDER: beforeinstall _scriptsinstall
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SCRIPTSDIR?= ${BINDIR}
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SCRIPTSOWN?= ${BINOWN}
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SCRIPTSGRP?= ${BINGRP}
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SCRIPTSMODE?= ${BINMODE}
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.for script in ${SCRIPTS}
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.if defined(SCRIPTSNAME)
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SCRIPTSNAME_${script:T}?= ${SCRIPTSNAME}
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.else
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SCRIPTSNAME_${script:T}?= ${script:T:R}
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.endif
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SCRIPTSDIR_${script:T}?= ${SCRIPTSDIR}
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SCRIPTSOWN_${script:T}?= ${SCRIPTSOWN}
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SCRIPTSGRP_${script:T}?= ${SCRIPTSGRP}
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SCRIPTSMODE_${script:T}?= ${SCRIPTSMODE}
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_scriptsinstall: _SCRIPTSINS_${script:T}
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_SCRIPTSINS_${script:T}: ${script}
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${INSTALL} -o ${SCRIPTSOWN_${.ALLSRC:T}} \
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-g ${SCRIPTSGRP_${.ALLSRC:T}} -m ${SCRIPTSMODE_${.ALLSRC:T}} \
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${.ALLSRC} \
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${DESTDIR}${SCRIPTSDIR_${.ALLSRC:T}}/${SCRIPTSNAME_${.ALLSRC:T}}
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.endfor
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.endif
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NLSNAME?= ${PROG}
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.include <bsd.nls.mk>
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.include <bsd.files.mk>
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.include <bsd.incs.mk>
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.include <bsd.links.mk>
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.if ${MK_MAN} != "no"
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realinstall: _maninstall
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.ORDER: beforeinstall _maninstall
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.endif
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.endif
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.if !target(lint)
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lint: ${SRCS:M*.c}
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.if defined(PROG)
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${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.ALLSRC}
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.endif
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.endif
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.if ${MK_MAN} != "no"
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.include <bsd.man.mk>
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.endif
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.include <bsd.dep.mk>
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.if defined(PROG) && !exists(${.OBJDIR}/${DEPENDFILE})
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${OBJS}: ${SRCS:M*.h}
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.endif
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.include <bsd.obj.mk>
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.include <bsd.sys.mk>
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