xref: /freebsd/share/mk/bsd.crunchgen.mk (revision 4d293dd8dcde59fc9842a0ce1125fef8fcf83a8c)
1#################################################################
2#
3# Generate crunched binaries using crunchgen(1).
4#
5# General notes:
6#
7# A number of Make variables are used to generate the crunchgen config file.
8#
9#  CRUNCH_SRCDIRS: lists directories to search for included programs
10#  CRUNCH_PROGS:  lists programs to be included
11#  CRUNCH_LIBS:  libraries to statically link with
12#  CRUNCH_SHLIBS:  libraries to dynamically link with
13#  CRUNCH_BUILDOPTS: generic build options to be added to every program
14#  CRUNCH_BUILDTOOLS: lists programs that need build tools built in the
15#       local architecture.
16#
17# Special options can be specified for individual programs
18#  CRUNCH_SRCDIR_${P}: base source directory for program ${P}
19#  CRUNCH_BUILDOPTS_${P}: additional build options for ${P}
20#  CRUNCH_ALIAS_${P}: additional names to be used for ${P}
21#
22# By default, any name appearing in CRUNCH_PROGS or CRUNCH_ALIAS_${P}
23# will be used to generate a hard link to the resulting binary.
24# Specific links can be suppressed by setting
25# CRUNCH_SUPPRESS_LINK_${NAME} to 1.
26#
27# If CRUNCH_GENERATE_LINKS is set to no, no links will be generated.
28#
29
30# $FreeBSD$
31
32##################################################################
33#  The following is pretty nearly a generic crunchgen-handling makefile
34#
35
36CONF=	${PROG}.conf
37OUTMK=	${PROG}.mk
38OUTC=	${PROG}.c
39OUTPUTS=${OUTMK} ${OUTC} ${PROG}.cache
40CRUNCHOBJS= ${.OBJDIR}
41CRUNCH_GENERATE_LINKS?= yes
42
43CLEANFILES+= ${CONF} *.o *.lo *.c *.mk *.cache *.a *.h
44
45# Don't try to extract debug info from ${PROG}.
46MK_DEBUG_FILES= no
47
48# Set a default SRCDIR for each for simpler handling below.
49.for D in ${CRUNCH_SRCDIRS}
50.for P in ${CRUNCH_PROGS_${D}}
51CRUNCH_SRCDIR_${P}?=	${.CURDIR}/../../${D}/${P}
52.endfor
53.endfor
54
55# Program names and their aliases contribute hardlinks to 'rescue' executable,
56# except for those that get suppressed.
57.for D in ${CRUNCH_SRCDIRS}
58.for P in ${CRUNCH_PROGS_${D}}
59${OUTPUTS}: ${CRUNCH_SRCDIR_${P}}/Makefile
60.if ${CRUNCH_GENERATE_LINKS} == "yes"
61.ifndef CRUNCH_SUPPRESS_LINK_${P}
62LINKS+= ${BINDIR}/${PROG} ${BINDIR}/${P}
63.endif
64.for A in ${CRUNCH_ALIAS_${P}}
65.ifndef CRUNCH_SUPPRESS_LINK_${A}
66LINKS+= ${BINDIR}/${PROG} ${BINDIR}/${A}
67.endif
68.endfor
69.endif
70.endfor
71.endfor
72
73all: ${PROG}
74exe: ${PROG}
75
76${CONF}: Makefile
77	echo \# Auto-generated, do not edit >${.TARGET}
78.ifdef CRUNCH_BUILDOPTS
79	echo buildopts ${CRUNCH_BUILDOPTS} >>${.TARGET}
80.endif
81.ifdef CRUNCH_LIBS
82	echo libs ${CRUNCH_LIBS} >>${.TARGET}
83.endif
84.ifdef CRUNCH_SHLIBS
85	echo libs_so ${CRUNCH_SHLIBS} >>${.TARGET}
86.endif
87.for D in ${CRUNCH_SRCDIRS}
88.for P in ${CRUNCH_PROGS_${D}}
89	echo progs ${P} >>${.TARGET}
90	echo special ${P} srcdir ${CRUNCH_SRCDIR_${P}} >>${.TARGET}
91.ifdef CRUNCH_BUILDOPTS_${P}
92	echo special ${P} buildopts DIRPRFX=${DIRPRFX}${P}/ \
93	    ${CRUNCH_BUILDOPTS_${P}} >>${.TARGET}
94.else
95	echo special ${P} buildopts DIRPRFX=${DIRPRFX}${P}/ >>${.TARGET}
96.endif
97.for A in ${CRUNCH_ALIAS_${P}}
98	echo ln ${P} ${A} >>${.TARGET}
99.endfor
100.endfor
101.endfor
102
103CRUNCHGEN?= crunchgen
104CRUNCHENV?= MK_TESTS=no
105.ORDER: ${OUTPUTS} objs
106${OUTPUTS}: ${CONF} .META
107	MAKE=${MAKE} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${CRUNCHGEN} -fq \
108	    -m ${OUTMK} -c ${OUTC} ${CONF}
109
110# These 2 targets cannot use .MAKE since they depend on the generated
111# ${OUTMK} above.
112${PROG}: ${OUTPUTS} objs
113	${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} -f ${OUTMK} exe
114
115objs: ${OUTMK}
116	${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} -f ${OUTMK} objs
117
118# <sigh> Someone should replace the bin/csh and bin/sh build-tools with
119# shell scripts so we can remove this nonsense.
120.for _tool in ${CRUNCH_BUILDTOOLS}
121build-tools-${_tool}:
122	${_+_}cd ${.CURDIR}/../../${_tool}; \
123	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} obj; \
124	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} build-tools
125build-tools: build-tools-${_tool}
126.endfor
127
128# Use a separate build tree to hold files compiled for this crunchgen binary
129# Yes, this does seem to partly duplicate bsd.subdir.mk, but I can't
130# get that to cooperate with bsd.prog.mk.  Besides, many of the standard
131# targets should NOT be propagated into the components.
132.for __target in clean cleandepend cleandir obj objlink
133.for D in ${CRUNCH_SRCDIRS}
134.for P in ${CRUNCH_PROGS_${D}}
135${__target}_crunchdir_${P}: .PHONY .MAKE
136	${_+_}cd ${CRUNCH_SRCDIR_${P}} && \
137	    ${CRUNCHENV} MAKEOBJDIRPREFIX=${CANONICALOBJDIR} ${MAKE} \
138	    DIRPRFX=${DIRPRFX}${P}/ ${CRUNCH_BUILDOPTS} ${__target}
139${__target}: ${__target}_crunchdir_${P}
140.endfor
141.endfor
142.endfor
143
144clean:
145	rm -f ${CLEANFILES}
146	${_+_}if [ -e ${.OBJDIR}/${OUTMK} ]; then			\
147		${CRUNCHENV} MAKEOBJDIRPREFIX=${CRUNCHOBJS} ${MAKE} 	\
148		-f ${OUTMK} clean;					\
149	fi
150