1#!/bin/sh
2#
3# $FreeBSD$
4#
5# Our current make(1)-based approach to dependency tracking cannot cope with
6# certain source tree changes, including:
7# - removing source files
8# - replacing generated files with files committed to the tree
9# - changing file extensions (e.g. a C source file rewritten in C++)
10#
11# We handle those cases here in an ad-hoc fashion by looking for the known-
12# bad case in the main .depend file, and if found deleting all of the related
13# .depend files (including for example the lib32 version).
14#
15# These tests increase the build time (albeit by a small amount), so they
16# should be removed once enough time has passed and it is extremely unlikely
17# anyone would try a NO_CLEAN build against an object tree from before the
18# related change.  One year should be sufficient.
19
20OBJTOP=$1
21if [ ! -d "$OBJTOP" ]; then
22	echo "usage: $(basename $0) objtop" >&2
23	exit 1
24fi
25
26# $1 directory
27# $2 source filename w/o extension
28# $3 source extension
29clean_dep()
30{
31	if [ -e "$OBJTOP"/$1/.depend.$2.pico ] && \
32	    egrep -qw "$2\.$3" "$OBJTOP"/$1/.depend.$2.pico; then \
33		echo "Removing stale dependencies for $2.$3"; \
34		rm -f "$OBJTOP"/$1/.depend.$2.* \
35		    "$OBJTOP"/obj-lib32/$1/.depend.$2.*
36	fi
37}
38
39# Date      Rev      Description
40# 20200310  r358851  rename of openmp's ittnotify_static.c to .cpp
41clean_dep lib/libomp ittnotify_static c
42# 20200414  r359930  closefrom
43clean_dep lib/libc   closefrom S
44
45# 20200826  r364746  OpenZFS merge, apply a big hammer (remove whole tree)
46if [ -e "$OBJTOP"/cddl/lib/libzfs/.depend.libzfs_changelist.o ] && \
47    egrep -qw "cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c" \
48    "$OBJTOP"/cddl/lib/libzfs/.depend.libzfs_changelist.o; then
49	echo "Removing old ZFS tree"
50	rm -rf "$OBJTOP"/cddl "$OBJTOP"/obj-lib32/cddl
51fi
52
53# 20200916  WARNS bumped, need bootstrapped crunchgen stubs
54if [ -e "$OBJTOP"/rescue/rescue/rescue.c ] && \
55    ! grep -q 'crunched_stub_t' "$OBJTOP"/rescue/rescue/rescue.c; then
56	echo "Removing old rescue(8) tree"
57	rm -rf "$OBJTOP"/rescue/rescue
58fi
59
60# 20210105  fda7daf06301   pfctl gained its own version of pf_ruleset.c
61if [ -e "$OBJTOP"/sbin/pfctl/.depend.pf_ruleset.o ] && \
62    egrep -qw "sys/netpfil/pf/pf_ruleset.c" \
63    "$OBJTOP"/sbin/pfctl/.depend.pf_ruleset.o; then
64	echo "Removing old pf_ruleset dependecy file"
65	rm -rf "$OBJTOP"/sbin/pfctl/.depend.pf_ruleset.o
66fi
67
68# 20210108  821aa63a0940   non-widechar version of ncurses removed
69if [ -e "$OBJTOP"/lib/ncurses/ncursesw ]; then
70	echo "Removing stale ncurses objects"
71	rm -rf "$OBJTOP"/lib/ncurses "$OBJTOP"/obj-lib32/lib/ncurses
72fi
73
74# 20210608  f20893853e8e    move from atomic.S to atomic.c
75clean_dep cddl/lib/libspl      atomic S
76