about summary refs log tree commit diff
path: root/Src/mkmakemod.sh
blob: 2f79acbc399ea2303ce3993049efe7eff3ada47a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
#!/bin/sh
#
# mkmakemod.sh: generate Makefile.in files for module building
#
# Options:
#   -m = file is already generated; only build the second stage
#   -i = do not build second stage
#
# Args:
#   $1 = subdirectory to look in, relative to $top_srcdir
#   $2 = final output filename, within the $1 directory
#
# This script must be run from the top-level build directory, and $top_srcdir
# must be set correctly in the environment.
#
# This looks in $1, and uses all the *.mdd files there.  Each .mdd file
# defines one module.  The .mdd file is actually a shell script, which will
# be sourced.  It may define the following shell variables:
#
#   moddeps         modules on which this module depends (default none)
#   nozshdep        non-empty indicates no dependence on the `zsh' pseudo-module
#   alwayslink      if non-empty, always link the module into the executable
#   autobins        builtins defined by the module, for autoloading
#   autoinfixconds  infix condition codes defined by the module, for
#                   autoloading (without the leading `-')
#   autoprefixconds like autoinfixconds, but for prefix condition codes
#   objects         .o files making up this module (*must* be defined)
#   proto           .pro files for this module (default generated from $objects)
#   headers         extra headers for this module (default none)
#   hdrdeps         extra headers on which the .mdh depends (default none)
#   otherincs       extra headers that are included indirectly (default none)
#
# The .mdd file may also include a Makefile.in fragment between lines
# `:<<\Make' and `Make' -- this will be copied into Makemod.in.
#
# The resulting Makemod.in knows how to build each module that is defined.
# For each module in also knows how to build a .mdh file.  Each source file
# should #include the .mdh file for the module it is a part of.  The .mdh
# file #includes the .mdh files for any module dependencies, then each of
# $headers, and then each of $proto (for global declarations).  It will
# be recreated if any of the dependency .mdh files changes, or if any of
# $headers or $hdrdeps changes.  When anything depends on it, all of $proto
# and $otherincs will be made up to date, but the .mdh file won't actually
# be rebuilt if those files change.
#
# The order of sections of the output file is thus:
#   simple generated macros
#   macros generated from *.mdd
#   included Makemod.in.in
#   rules generated from *.mdd
# The order dependencies are basically that the generated macros are required
# in Makemod.in.in, but some of the macros that it creates are needed in the
# later rules.
#

# sed script to normalise a pathname
sed_normalise='
    s,^,/,
    s,$,/,
    :1
    s,/\./,/,
    t1
    :2
    s,/[^/.][^/]*/\.\./,/,
    s,/\.[^/.][^/]*/\.\./,/,
    s,/\.\.[^/][^/]*/\.\./,/,
    t2
    s,^/$,.,
    s,^/,,
    s,\(.\)/$,\1,
'

# decide which stages to process
first_stage=true
second_stage=true
if test ."$1" = .-m; then
    shift
    first_stage=false
elif test ."$1" = .-i; then
    shift
    second_stage=false
fi

top_srcdir=`echo $top_srcdir | sed "$sed_normalise"`
the_subdir=$1
the_makefile=$2

if $first_stage; then

    trap "rm -f $the_subdir/${the_makefile}.in" 1 2 15
    echo "creating $the_subdir/${the_makefile}.in"
    exec 3>&1 >$the_subdir/${the_makefile}.in
    echo "##### ${the_makefile}.in generated automatically by mkmakemod.sh"
    echo "##### DO NOT EDIT!"
    echo
    echo "##### ===== DEFINITIONS ===== #####"
    echo
    echo "makefile = ${the_makefile}"
    echo "dir_top = "`echo $the_subdir | sed 's,[^/][^/]*,..,g'`
    echo "subdir = $the_subdir"
    echo

    . Src/modules.index
    bin_mods=" zsh "`sed 's/^/ /;s/$/ /' Src/modules-bltin`
    if grep '%@D@%D%' config.status >/dev/null; then
	is_dynamic=true
    else
	is_dynamic=false
    fi

    here_modules=
    all_subdirs=
    all_modobjs=
    all_modules=
    all_mdds=
    all_mdhs=
    all_proto=
    lastsub=//
    for module in $module_list; do
	eval "loc=\$loc_$module"
	case $loc in
	    $the_subdir)
		here_modules="$here_modules $module"
		build=$is_dynamic
		case $is_dynamic@$bin_mods in
		    *" $module "*)
			build=true
			all_modobjs="$all_modobjs modobjs.${module}" ;;
		    true@*)
			all_modules="$all_modules ${module}.\$(DL_EXT)" ;;
		esac
		all_mdds="$all_mdds ${module}.mdd"
		$build && all_mdhs="$all_mdhs ${module}.mdh"
		$build && all_proto="$all_proto proto.${module}"
		;;
	    $lastsub | $lastsub/*) ;;
	    $the_subdir/*)
		all_subdirs="$all_subdirs $loc"
		lastsub=$loc
		;;
	esac
    done
    all_subdirs=`echo "$all_subdirs" | sed "s' $the_subdir/' 'g"`
    echo "MODOBJS =$all_modobjs"
    echo "MODULES =$all_modules"
    echo "MDDS    =$all_mdds"
    echo "MDHS    =$all_mdhs"
    echo "PROTOS  =$all_proto"
    echo "SUBDIRS =$all_subdirs"
    echo
    echo "ENTRYOBJ = \$(dir_src)/modentry..o"
    echo "NNTRYOBJ ="
    echo "ENTRYOPT = -emodentry"
    echo "NNTRYOPT ="
    echo

    echo "##### ===== INCLUDING Makemod.in.in ===== #####"
    echo
    cat $top_srcdir/Src/Makemod.in.in
    echo

    case $the_subdir in
	Src) modobjs_sed= ;;
	Src/*) modobjs_sed="| sed 's\" \" "`echo $the_subdir | sed 's,^Src/,,'`"/\"g' " ;;
	*) modobjs_sed="| sed 's\" \" ../$the_subdir/\"g' " ;;
    esac

    other_mdhs=
    remote_mdhs=
    for module in $here_modules; do

	unset moddeps nozshdep alwayslink hasexport
	unset autobins autoinfixconds autoprefixconds
	unset objects proto headers hdrdeps otherincs
	. $top_srcdir/$the_subdir/${module}.mdd
	test -n "${moddeps+set}" || moddeps=
	test -n "$nozshdep" || moddeps="$moddeps zsh"
	test -n "${proto+set}" ||
	    proto=`echo $objects '' | sed 's,\.o ,.pro ,g'`

	dobjects=`echo $objects '' | sed 's,\.o ,..o ,g'`
	modhdeps=
	imports=
	for dep in $moddeps; do
	    eval "loc=\$loc_$dep"
	    imports="$imports \$(IMPOPT)\$(sdir_top)/$loc/$dep.export"
	    case $the_subdir in
		$loc)
		    mdh="${dep}.mdh"
		    ;;
		$loc/*)
		    mdh="\$(dir_top)/$loc/${dep}.mdh"
		    case "$other_mdhs " in
			*" $mdh "*) ;;
			*) other_mdhs="$other_mdhs $mdh" ;;
		    esac
		    ;;
		*)
		    mdh="\$(dir_top)/$loc/${dep}.mdh"
		    case "$remote_mdhs " in
			*" $mdh "*) ;;
			*) remote_mdhs="$remote_mdhs $mdh" ;;
		    esac
		    ;;
	    esac
	    modhdeps="$modhdeps $mdh"
	done

	echo "##### ===== DEPENDENCIES GENERATED FROM ${module}.mdd ===== #####"
	echo
	echo "MODOBJS_${module} = $objects"
	echo "MODDOBJS_${module} = $dobjects \$(@E@NTRYOBJ)"
	echo "PROTO_${module} = $proto"
	echo "INCS_${module} = \$(PROTO_${module}) $otherincs"
	echo "EXPIMP_${module} = $imports ${hasexport+\$(EXPOPT)\$(sdir)/$module.export}"
	echo "NXPIMP_${module} ="
	echo
	echo "proto.${module}: \$(PROTO_${module})"
	echo "\$(PROTO_${module}): \$(PROTODEPS)"
	echo
	echo "modobjs.${module}: \$(MODOBJS_${module})"
	echo "	echo '' \$(MODOBJS_${module}) $modobjs_sed>> \$(dir_src)/stamp-modobjs.tmp"
	echo
	if test -z "$alwayslink"; then
	    echo "${module}.\$(DL_EXT): \$(MODDOBJS_${module})"
	    echo '	rm -f $@'
	    echo "	\$(DLLINK) \$(@E@XPIMP_$module) \$(@E@NTRYOPT) \$(MODDOBJS_${module}) \$(LIBS)"
	    echo
	fi
	echo "${module}.mdhi: ${module}.mdhs \$(INCS_${module})"
	echo "	@test -f \$@ || echo 'do not delete this file' > \$@"
	echo
	echo "${module}.mdhs: ${module}.mdd"
	echo "	@\$(MAKE) -f \$(makefile) \$(MAKEDEFS) ${module}.mdh.tmp"
	echo "	@if cmp -s ${module}.mdh ${module}.mdh.tmp; then \\"
	echo "	    rm -f ${module}.mdh.tmp; \\"
	echo "	    echo \"\\\`${module}.mdh' is up to date.\"; \\"
	echo "	else \\"
	echo "	    mv -f ${module}.mdh.tmp ${module}.mdh; \\"
	echo "	    echo \"Updated \\\`${module}.mdh'.\"; \\"
	echo "	fi"
	echo "	echo 'timestamp for ${module}.mdh against ${module}.mdd' > \$@"
	echo
	echo "${module}.mdh: ${modhdeps} ${headers} ${hdrdeps} ${module}.mdhi"
	echo "	@\$(MAKE) -f \$(makefile) \$(MAKEDEFS) ${module}.mdh.tmp"
	echo "	@mv -f ${module}.mdh.tmp ${module}.mdh"
	echo "	@echo \"Updated \\\`${module}.mdh'.\""
	echo
	echo "${module}.mdh.tmp:"
	echo "	@( \\"
	echo "	    echo '#ifndef have_${module}_module'; \\"
	echo "	    echo '#define have_${module}_module'; \\"
	echo "	    echo; \\"
	if test -n "$moddeps"; then
	    echo "	    echo '/* Module dependencies */'; \\"
	    echo "	    for mod in $modhdeps; do \\"
	    echo "		echo '# define USING_MODULE'; \\"
	    echo "		echo '# include \"'\$\$mod'\"'; \\"
	    echo "	    done; \\"
	    echo "	    echo '# undef USING_MODULE'; \\"
	    echo "	    echo; \\"
	fi
	if test -n "$headers"; then
	    echo "	    echo '/* Extra headers for this module */'; \\"
	    echo "	    for hdr in $headers; do \\"
	    echo "		if test -f \$\$hdr; then \\"
	    echo "		    echo '# include \"'\$\$hdr'\"'; \\"
	    echo "		else \\"
	    echo "		    echo '# include \"\$(sdir)/'\$\$hdr'\"'; \\"
	    echo "		fi; \\"
	    echo "	    done; \\"
	    echo "	    echo; \\"
	fi
	if test -n "$proto"; then
	    echo "	    echo '# define GLOBAL_PROTOTYPES'; \\"
	    echo "	    for pro in \$(PROTO_${module}); do \\"
	    echo "		echo '# include \"'\$\$pro'\"'; \\"
	    echo "	    done; \\"
	    echo "	    echo '# undef GLOBAL_PROTOTYPES'; \\"
	    echo "	    echo; \\"
	fi
	echo "	    echo '#endif /* !have_${module}_module */'; \\"
	echo "	) > \$@"
	echo
	echo "\$(MODOBJS_${module}) \$(MODDOBJS_${module}): ${module}.mdh"
	sed -e '/^ *: *<< *\\Make *$/,/^Make$/!d' \
	    -e 's/^ *: *<< *\\Make *$//; /^Make$/d' \
	    < $top_srcdir/$the_subdir/${module}.mdd
	echo

    done

    if test -n "$remote_mdhs$other_mdhs"; then
	echo "##### ===== DEPENDENCIES FOR REMOTE MODULES ===== #####"
	echo
	for mdh in $remote_mdhs; do
	    echo "$mdh: FORCE"
	    echo "	@cd @%@ && \$(MAKE) \$(MAKEDEFS) @%@$mdh"
	    echo
	done | sed 's,^\(.*\)@%@\(.*\)@%@\(.*\)/\([^/]*\)$,\1\3\2\4,'
	if test -n "$other_mdhs"; then
	    echo "${other_mdhs}:"
	    echo "	false # should only happen with make -n"
	    echo
	fi
    fi

    echo "##### End of ${the_makefile}.in"

    exec >&3 3>&-

fi

if $second_stage; then

    trap "rm -f $the_subdir/${the_makefile}" 1 2 15

    # The standard config.status requires the pathname for the .in file to
    # be relative to the top of the source tree.  As we have it in the build
    # tree, this is a problem.  zsh's configure script edits config.status,
    # adding the feature that an input filename starting with "!" has the
    # "!" removed and is not mangled further.
    CONFIG_FILES=$the_subdir/${the_makefile}:\!$the_subdir/${the_makefile}.in CONFIG_HEADERS= ./config.status

fi

exit 0