4 files changed, 312 insertions, 0 deletions
diff --git a/rescue/Makefile b/rescue/Makefile
new file mode 100644
index 0000000..0945ed3
--- /dev/null
+++ b/rescue/Makefile
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+SUBDIR=	librescue \
+	rescue
+
+.include <bsd.subdir.mk>
diff --git a/rescue/README b/rescue/README
new file mode 100644
index 0000000..3a8cb46
--- /dev/null
+++ b/rescue/README
@@ -0,0 +1,44 @@
+The /rescue build system here has three goals:
+
+1) Produce a reliable standalone set of /rescue tools.
+
+The contents of /rescue are all statically linked and do not depend on
+anything in /bin or /sbin.  In particular, they'll continue to
+function even if you've hosed your dynamic /bin and /sbin.  For
+example, note that /rescue/mount runs /rescue/mount_nfs and not
+/sbin/mount_nfs.  This is more subtle than it looks.
+
+As an added bonus, /rescue is fairly small (thanks to crunchgen) and
+includes a number of tools (such as gzip, bzip2, vi) that are not
+normally found in /bin and /sbin.
+
+2) Demonstrate robust use of crunchgen.
+
+These Makefiles recompile each of the crunchgen components and include
+support for overriding specific library entries.  Such techniques
+should be useful elsewhere.  For example, boot floppies could use this
+to conditionally compile out features to reduce executable size.
+
+3) Produce a toolkit suitable for small distributions.
+
+Install /rescue on a CD or CompactFlash disk, and symlink /bin and
+/sbin to /rescue to produce a small and fairly complete FreeBSD
+system.
+
+These tools have one big disadvantage: being statically linked, they
+cannot use some advanced library functions that rely on dynamic
+linking.  In particular, nsswitch, locales, and pam are likely to all
+rely on dynamic linking in the near future.
+
+
+To compile:
+
+# cd /usr/src/rescue
+# make obj
+# make
+# make install
+
+Note that rebuilds don't always work correctly; if you run into
+trouble, try 'make clean' before recompiling.
+
+$FreeBSD$
diff --git a/rescue/librescue/Makefile b/rescue/librescue/Makefile
new file mode 100644
index 0000000..62f5da1
--- /dev/null
+++ b/rescue/librescue/Makefile
@@ -0,0 +1,46 @@
+#
+# $FreeBSD$
+#
+
+.include <bsd.own.mk>
+MK_SSP=		no
+
+# Certain library entries have hard-coded references to
+# /bin, /sbin, etc, that require those entries to be
+# recompiled for use in /rescue.  This Makefile
+# accomplishes that.  Note that this is pure build hackery.
+# This library should never be installed, and isn't even linked
+# with in the normal way. (See ../rescue/Makefile for details.)
+
+.PATH: ${.CURDIR}/../../lib/libc/gen \
+       ${.CURDIR}/../../lib/libc/net \
+       ${.CURDIR}/../../lib/libc/stdlib \
+       ${.CURDIR}/../../lib/libutil 
+
+LIB=		rescue
+INTERNALLIB=	# Don't install this library
+SRCS=		exec.c getusershell.c login_class.c popen.c rcmdsh.c \
+		sysctl.c system.c
+
+CFLAGS+=	-DRESCUE
+# Flags copied from src/lib/libc and src/lib/libutil
+# libc/db/Makefile.inc
+CFLAGS+=	-D__DBINTERFACE_PRIVATE
+# libc/net/Makefile.inc & libutil/Makefile
+.if ${MK_INET6_SUPPORT} != "no"
+CFLAGS+=	-DINET6
+.endif
+# libc/regex/Makefile.inc & libc/regex/grot/Makefile
+CFLAGS+=	-DPOSIX_MISTAKE
+# libc/rpc/Makefile.inc
+CFLAGS+=	-DBROKEN_DES -DPORTMAP -DDES_BUILTIN
+# libc/Makefile
+.if ${MK_NIS} != "no"
+CFLAGS+=       -DYP
+.endif
+.if ${MK_HESIOD} != "no"
+CFLAGS+=       -DHESIOD
+.endif
+CFLAGS+=	-I${.CURDIR}/../../lib/libc/include
+
+.include <bsd.lib.mk>
diff --git a/rescue/rescue/Makefile b/rescue/rescue/Makefile
new file mode 100644
index 0000000..721bbb47
--- /dev/null
+++ b/rescue/rescue/Makefile
@@ -0,0 +1,216 @@
+#$FreeBSD$
+#	@(#)Makefile	8.1 (Berkeley) 6/2/93
+
+NO_MAN=
+
+.include <bsd.own.mk>
+MK_SSP=	no
+
+PROG=	rescue
+BINDIR?=/rescue
+
+# Shell scripts need #! line to be edited from /bin/sh to /rescue/sh
+SCRIPTS= nextboot_FIXED
+SCRIPTSNAME_nextboot_FIXED= nextboot
+nextboot_FIXED: ../../sbin/reboot/nextboot.sh
+	sed '1s/\/bin\//\/rescue\//' ${.ALLSRC} > ${.TARGET}
+CLEANFILES+= nextboot_FIXED
+
+SCRIPTS+= dhclient_FIXED
+SCRIPTSNAME_dhclient_FIXED= dhclient-script
+dhclient_FIXED: ../../sbin/dhclient/dhclient-script
+	sed '1s/\/bin\//\/rescue\//' ${.ALLSRC} > ${.TARGET}
+CLEANFILES+= dhclient_FIXED
+
+# The help which used to be here is now in mk/bsd.crunchgen.mk
+
+# Define Makefile variable RESCUE
+CRUNCH_BUILDOPTS+= -DRESCUE
+# Define compile-time RESCUE symbol when compiling components
+CRUNCH_BUILDOPTS+= CRUNCH_CFLAGS=-DRESCUE
+
+# An experiment that failed: try overriding bsd.lib.mk and bsd.prog.mk
+# rather than incorporating rescue-specific logic into standard files.
+#MAKEFLAGS= -m ${.CURDIR} ${.MAKEFLAGS}
+
+# Hackery:  'librescue' exists merely as a tool for appropriately
+# recompiling specific library entries.  We _know_ they're needed, and
+# regular archive searching creates ugly library ordering problems.
+# Easiest fix: tell the linker to include them into the executable
+# first, so they are guaranteed to override the regular lib entries.
+# Note that if 'librescue' hasn't been compiled, we'll just get the
+# regular lib entries from libc and friends.
+CRUNCH_LIBS+= ${.OBJDIR}/../librescue/*.o
+
+###################################################################
+# Programs from stock /bin
+#
+# WARNING: Changing this list may require adjusting
+# /usr/include/paths.h as well!  You were warned!
+#
+CRUNCH_SRCDIRS+= bin
+CRUNCH_PROGS_bin= cat chflags chio chmod cp date dd df echo 	\
+	 ed expr getfacl hostname kenv kill ln ls mkdir mv	\
+	 pkill ps pwd realpath rm rmdir setfacl sh stty sync test
+CRUNCH_LIBS+= -lcrypt -ledit -lkvm -ll -ltermcap -lutil
+CRUNCH_BUILDTOOLS+= bin/sh
+
+# Additional options for specific programs
+CRUNCH_ALIAS_test= [
+CRUNCH_ALIAS_sh= -sh
+# The -sh alias shouldn't appear in /rescue as a hard link
+CRUNCH_SUPPRESS_LINK_-sh= 1
+CRUNCH_ALIAS_ln= link
+CRUNCH_ALIAS_rm= unlink
+CRUNCH_ALIAS_ed= red
+CRUNCH_ALIAS_pkill= pgrep
+
+.if ${MK_RCMDS} != "no"
+CRUNCH_PROGS_bin+= rcp
+.endif
+
+.if ${MK_TCSH} != "no"
+CRUNCH_PROGS_bin+= csh
+CRUNCH_ALIAS_csh= -csh tcsh -tcsh
+CRUNCH_BUILDTOOLS+= bin/csh
+CRUNCH_SUPPRESS_LINK_-csh= 1
+CRUNCH_SUPPRESS_LINK_-tcsh= 1
+.endif
+
+###################################################################
+# Programs from standard /sbin
+#
+# WARNING: Changing this list may require adjusting
+# /usr/include/paths.h as well!  You were warned!
+#
+# Note that mdmfs have their own private 'pathnames.h'
+# headers in addition to the standard 'paths.h' header.
+#
+CRUNCH_SRCDIRS+= sbin
+CRUNCH_PROGS_sbin= atacontrol badsect				\
+	camcontrol ccdconfig clri devfs dmesg dump		\
+	dumpfs dumpon fsck fsck_ffs fsck_msdosfs fsdb		\
+	fsirand gbde geom ifconfig init 			\
+	kldconfig kldload kldstat kldunload ldconfig 		\
+	md5 mdconfig mdmfs mknod mount mount_cd9660		\
+	mount_msdosfs mount_nfs mount_nullfs			\
+	mount_udf mount_unionfs newfs				\
+	newfs_msdos nos-tun ping reboot				\
+	restore rcorder route routed rtquery rtsol savecore	\
+	spppcontrol swapon sysctl tunefs umount
+
+.if ${MK_ATM} != "no"
+CRUNCH_PROGS_sbin+= atmconfig
+.endif
+
+.if ${MK_INET6_SUPPORT} != "no"
+CRUNCH_PROGS_sbin+= ping6
+.endif
+
+.if ${MK_IPFILTER} != "no"
+CRUNCH_PROGS_sbin+= ipf
+.endif
+.if ${MK_ZFS} != "no"
+CRUNCH_PROGS_sbin+= zfs
+CRUNCH_PROGS_sbin+= zpool
+.endif
+
+# crunchgen does not like C++ programs; this should be fixed someday
+# CRUNCH_PROGS+= devd
+
+CRUNCH_LIBS+= -lalias -lcam -lcurses -ldevstat -lipsec
+.if ${MK_IPX} != "no"
+CRUNCH_LIBS+= -lipx
+.endif
+.if ${MK_ZFS} != "no"
+CRUNCH_LIBS+= -lavl -ljail -lzfs_core -lzfs -lnvpair -lpthread -luutil -lumem
+.endif
+CRUNCH_LIBS+= -lgeom -lbsdxml -lkiconv -lmd -lsbuf -lufs -lz
+
+.if ${MACHINE_CPUARCH} == "i386"
+CRUNCH_PROGS_sbin+= bsdlabel sconfig fdisk
+CRUNCH_ALIAS_bsdlabel= disklabel
+.endif
+
+.if ${MACHINE} == "pc98"
+CRUNCH_PROGS_sbin+= bsdlabel
+CRUNCH_SRCDIR_fdisk= $(.CURDIR)/../../sbin/fdisk_pc98
+.endif
+
+.if ${MACHINE_CPUARCH} == "ia64"
+CRUNCH_PROGS_sbin+= mca
+.endif
+
+.if ${MACHINE_CPUARCH} == "sparc64"
+CRUNCH_PROGS_sbin+= bsdlabel sunlabel
+.endif
+
+.if ${MACHINE_CPUARCH} == "amd64"
+CRUNCH_PROGS_sbin+= bsdlabel fdisk
+CRUNCH_ALIAS_bsdlabel= disklabel
+.endif
+
+CRUNCH_SRCDIR_atm= $(.CURDIR)/../../sbin/atm/atm
+CRUNCH_SRCDIR_atmconfig= $(.CURDIR)/../../sbin/atm/atmconfig
+CRUNCH_SRCDIR_fore_dnld= $(.CURDIR)/../../sbin/atm/fore_dnld
+CRUNCH_SRCDIR_ilmid= $(.CURDIR)/../../sbin/atm/ilmid
+CRUNCH_SRCDIR_rtquery= $(.CURDIR)/../../sbin/routed/rtquery
+CRUNCH_SRCDIR_ipf= $(.CURDIR)/../../sbin/ipf/ipf
+.if ${MK_ZFS} != "no"
+CRUNCH_SRCDIR_zfs= ${.CURDIR}/../../cddl/sbin/zfs
+CRUNCH_SRCDIR_zpool= ${.CURDIR}/../../cddl/sbin/zpool
+.endif
+CRUNCH_ALIAS_reboot= fastboot halt fasthalt
+CRUNCH_ALIAS_restore= rrestore
+CRUNCH_ALIAS_dump= rdump
+CRUNCH_ALIAS_fsck_ffs= fsck_4.2bsd fsck_ufs
+CRUNCH_ALIAS_geom= glabel gpart
+
+# dhclient has historically been troublesome...
+CRUNCH_PROGS_sbin+= dhclient
+CRUNCH_BUILDOPTS_dhclient= -DRELEASE_CRUNCH -Dlint
+
+##################################################################
+# Programs from stock /usr/bin
+#
+CRUNCH_SRCDIRS+= usr.bin
+
+CRUNCH_PROGS_usr.bin= head mt nc sed tail tee
+
+CRUNCH_PROGS_usr.bin+= gzip
+CRUNCH_ALIAS_gzip= gunzip gzcat zcat
+
+CRUNCH_PROGS_usr.bin+= bzip2
+CRUNCH_ALIAS_bzip2= bunzip2 bzcat
+CRUNCH_LIBS+= -lbz2
+
+CRUNCH_PROGS_usr.bin+= xz
+CRUNCH_ALIAS_xz= unxz lzma unlzma xzcat lzcat
+CRUNCH_LIBS+= -llzma
+
+CRUNCH_PROGS_usr.bin+= tar
+CRUNCH_LIBS+= -larchive -lmd
+.if ${MK_OPENSSL} != "no"
+CRUNCH_LIBS+= -lcrypto
+.endif
+
+CRUNCH_PROGS_usr.bin+= vi
+CRUNCH_ALIAS_vi= ex
+
+CRUNCH_PROGS_usr.bin+= id
+CRUNCH_ALIAS_id= groups whoami
+
+##################################################################
+# Programs from stock /usr/sbin
+#
+CRUNCH_SRCDIRS+= usr.sbin
+
+CRUNCH_PROGS_usr.sbin= chroot
+
+CRUNCH_PROGS_usr.sbin+= chown
+CRUNCH_ALIAS_chown= chgrp
+##################################################################
+CRUNCH_LIBS+= -lm
+
+.include <bsd.crunchgen.mk>
+.include <bsd.prog.mk>