summaryrefslogtreecommitdiffstats
path: root/process_configs.sh
blob: 987fb78c11680768699893a7e2b111eb7bbe7261 (plain)
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
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
#!/bin/bash
#
# This script takes the merged config files and processes them through oldconfig
# and listnewconfig
#
# Globally disable suggestion of appending '|| exit' or '|| return' to cd/pushd/popd commands
# shellcheck disable=SC2164

test -n "$RHTEST" && exit 0

usage()
{
	# alphabetical order please
	echo "process_configs.sh [ options ] package_name kernel_version"
	echo "     -a: report all errors, equivalent to [-c -n -w -i]"
	echo "     -c: error on mismatched config options"
	echo "     -i: continue on error"
	echo "     -n: error on unset config options"
	echo "     -t: test run, do not overwrite original config"
	echo "     -w: error on misconfigured config options"
	echo "     -z: commit new configs to pending directory"
	echo ""
	echo "     A special CONFIG file tag, process_configs_known_broken can be added as a"
	echo "     comment to any CONFIG file.  This tag indicates that there is no way to "
	echo "     fix a CONFIG's entry.  This tag should only be used in extreme cases"
	echo "     and is not to be used as a workaround to solve CONFIG problems."
	exit 1
}

die()
{
	echo "$1"
	exit 1
}

get_cross_compile()
{
	arch=$1
	if [[ "$CC_IS_CLANG" -eq 1 ]]; then
		echo "$arch"
	else
		echo "scripts/dummy-tools/"
	fi
}

# stupid function to find top of tree to do kernel make configs
switch_to_toplevel()
{
	path="$(pwd)"
	while test -n "$path"
	do
		test -e "$path"/MAINTAINERS && \
			test -d "$path"/drivers && \
			break

		path=$(dirname "$path")
	done

	test -n "$path"  || die "Can't find toplevel"
	echo "$path"
}

checkoptions()
{
	count=$3
	variant=$4

	/usr/bin/awk '

		/is not set/ {
			split ($0, a, "#");
			split(a[2], b);
			if (NR==FNR) {
				configs[b[1]]="is not set";
			} else {
				if (configs[b[1]] != "" && configs[b[1]] != "is not set")
					 print "Found # "b[1] " is not set, after generation, had " b[1] " " configs[b[1]] " in Source tree";
			}
		}

		/=/     {
			split ($0, a, "=");
			if (NR==FNR) {
				configs[a[1]]=a[2];
			} else {
				if (configs[a[1]] != "" && configs[a[1]] != a[2])
					 print "Found "a[1]"="a[2]" after generation, had " a[1]"="configs[a[1]]" in Source tree";
			}
		}
	' "$1" "$2" > .mismatches"${count}"

	checkoptions_error=false
	if test -s .mismatches"${count}"
	then
		while read -r LINE
		do
			if find "${REDHAT}"/configs -name "$(echo "$LINE" | awk -F "=" ' { print $1 } ' | awk ' { print $2 }')" -print0 | xargs -0 grep ^ | grep -q "process_configs_known_broken"; then
				# This is a known broken config.
				# See script help warning.
				checkoptions_error=false
			else
				checkoptions_error=true
				break
			fi
		done < .mismatches"${count}"

		! $checkoptions_error && return

		sed -i "1s/^/Error: Mismatches found in configuration files for ${arch} ${variant}\n/" .mismatches"${count}"
	else
		rm -f .mismatches"${count}"
	fi
}

parsenewconfigs()
{
	tmpdir=$(mktemp -d)

	# This awk script reads the output of make listnewconfig
	# and puts it into CONFIG_FOO files. Using the output of
	# listnewconfig is much easier to ensure we get the default
	# output.
        /usr/bin/awk -v BASE="$tmpdir" '
                /is not set/ {
                        split ($0, a, "#");
                        split(a[2], b);
                        OUT_FILE=BASE"/"b[1];
                        print $0 >> OUT_FILE;
                }

                /=/     {
                        split ($0, a, "=");
                        OUT_FILE=BASE"/"a[1];
                        if (a[2] == "n")
                                print "# " a[1] " is not set" >> OUT_FILE;
                        else
                                print $0 >> OUT_FILE;
                }

        ' .newoptions

	# This awk script parses the output of helpnewconfig.
	# Each option is separated between ----- markers
	# The goal is to put all the help text as a comment in
	# each CONFIG_FOO file. Because of how awk works
	# there's a lot of moving files around and catting to
	# get what we need.
        /usr/bin/awk -v BASE="$tmpdir" '
                BEGIN { inpatch=0;
			outfile="none";
                        symbol="none"; }
                /^Symbol: .*$/ {
                        split($0, a, " ");
                        symbol="CONFIG_"a[2];
                        outfile=BASE "/fake_"symbol
                }
                /-----/ {
			if (inpatch == 0) {
				inpatch = 1;
			}
                        else {
                                if (symbol != "none") {
                                    system("cat " outfile " " BASE "/" symbol " > " BASE "/tmpf");
                                    system("mv " BASE "/tmpf " BASE "/" symbol);
                                    symbol="none"
				}
                                outfile="none"
				inpatch = 0;
                        }
                }
                !/-----/ {
                        if (inpatch == 1 && outfile != "none") {
                                print "# "$0 >> outfile;
                        }
                }


        ' .helpnewconfig

	pushd "$tmpdir" &> /dev/null
	rm fake_*
	popd &> /dev/null
	for f in "$tmpdir"/*; do
		[[ -e "$f" ]] || break
		cp "$f" "$SCRIPT_DIR/pending$FLAVOR/generic/"
	done

	rm -rf "$tmpdir"
}

function commit_new_configs()
{
	# assume we are in $source_tree/configs, need to get to top level
	pushd "$(switch_to_toplevel)" &>/dev/null

	for cfg in "$SCRIPT_DIR/${PACKAGE_NAME}${KVERREL}"*.config
	do
		arch=$(head -1 "$cfg" | cut -b 3-)
		cfgtmp="${cfg}.tmp"
		cfgorig="${cfg}.orig"
		cat "$cfg" > "$cfgorig"

		if [ "$arch" = "EMPTY" ]
		then
			# This arch is intentionally left blank
			continue
		fi
		echo -n "Checking for new configs in $cfg ... "

		# shellcheck disable=SC2086
		make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" listnewconfig >& .listnewconfig
		grep -E 'CONFIG_' .listnewconfig > .newoptions
		if test -s .newoptions
		then
		# shellcheck disable=SC2086
			make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" helpnewconfig >& .helpnewconfig
			parsenewconfigs
		fi
		rm .newoptions
		echo "done"
	done

	git add "$SCRIPT_DIR/pending$FLAVOR"
	git commit -m "[redhat] AUTOMATIC: New configs"
}

function process_config()
{
	local cfg
	local arch
	local cfgtmp
	local cfgorig
	local count
	local variant

	cfg=$1
	count=$2

	arch=$(head -1 "$cfg" | cut -b 3-)

	if [ "$arch" = "EMPTY" ]
	then
		# This arch is intentionally left blank
		return
	fi

	variant=$(basename "$cfg" | cut -d"-" -f3- | cut -d"." -f1)

	cfgtmp="${cfg}.tmp"
	cfgorig="${cfg}.orig"
	cat "$cfg" > "$cfgorig"

	echo "Processing $cfg ... "

	# shellcheck disable=SC2086
	make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" listnewconfig >& .listnewconfig"${count}"
	grep -E 'CONFIG_' .listnewconfig"${count}" > .newoptions"${count}"
	if test -n "$NEWOPTIONS" && test -s .newoptions"${count}"
	then
		echo "Found unset config items in ${arch} ${variant}, please set them to an appropriate value" >> .errors"${count}"
		cat .newoptions"${count}" >> .errors"${count}"
		rm .newoptions"${count}"
		RETURNCODE=1
	fi
	rm -f .newoptions"${count}"

	grep -E 'config.*warning' .listnewconfig"${count}" > .warnings"${count}"
	if test -n "$CHECKWARNINGS" && test -s .warnings"${count}"
	then
		echo "Found misconfigured config items in ${arch} ${variant}, please set them to an appropriate value" >> .errors"${count}"
		cat .warnings"${count}" >> .errors"${count}"
		rm .warnings"${count}"
	fi
	rm .warnings"${count}"

	rm .listnewconfig"${count}"

	# shellcheck disable=SC2086
	make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" olddefconfig > /dev/null || exit 1
	echo "# $arch" > "$cfgtmp"
	cat "$cfgorig" >> "$cfgtmp"
	if test -n "$CHECKOPTIONS"
	then
		checkoptions "$cfg" "$cfgtmp" "$count" "$variant"
	fi
	# if test run, don't overwrite original
	if test -n "$TESTRUN"
	then
		rm -f "$cfgtmp"
	else
		mv "$cfgtmp" "$cfg"
	fi
	rm -f "$cfgorig"
	echo "Processing $cfg complete"
}

function process_configs()
{
	# assume we are in $source_tree/configs, need to get to top level
	pushd "$(switch_to_toplevel)" &>/dev/null

	# The next line is throwaway code for transition to parallel
	# processing.  Leaving this line in place is harmless, but it can be
	# removed the next time anyone updates this function.
	[ -f .mismatches ] && rm -f .mismatches

	count=0
	for cfg in "$SCRIPT_DIR/${PACKAGE_NAME}${KVERREL}"*.config
	do
		if [ "$count" -eq 0 ]; then
			# do the first one by itself so that tools are built
			process_config "$cfg" "$count"
		fi
		process_config "$cfg" "$count" &
		waitpids[${count}]=$!
		((count++))
		while [ "$(jobs | grep -c Running)" -ge "$RHJOBS" ]; do :; done
	done
	for pid in ${waitpids[*]}; do
		wait ${pid}
	done

	rm "$SCRIPT_DIR"/*.config*.old

	if ls .errors* 1> /dev/null 2>&1; then
		RETURNCODE=1
		cat .errors*
		rm .errors* -f
	fi
	if ls .mismatches* 1> /dev/null 2>&1; then
		RETURNCODE=1
		cat .mismatches*
		rm .mismatches* -f
	fi

	popd > /dev/null

	[ $RETURNCODE -eq 0 ] && echo "Processed config files are in $SCRIPT_DIR"
}

CHECKOPTIONS=""
NEWOPTIONS=""
TESTRUN=""
CHECKWARNINGS=""
MAKEOPTS=""
CC_IS_CLANG=0

RETURNCODE=0

while [[ $# -gt 0 ]]
do
	key="$1"
	case $key in
		-a)
			CHECKOPTIONS="x"
			NEWOPTIONS="x"
			CHECKWARNINGS="x"
			;;
		-c)
			CHECKOPTIONS="x"
			;;
		-h)
			usage
			;;
		-n)
			NEWOPTIONS="x"
			;;
		-t)
			TESTRUN="x"
			;;
		-w)
			CHECKWARNINGS="x"
			;;
		-z)
			COMMITNEWCONFIGS="x"
			;;
		-m)
			shift
			if [ "$1" = "CC=clang" ] || [ "$1" = "LLVM=1" ]; then
				CC_IS_CLANG=1
			fi
			MAKEOPTS="$MAKEOPTS $1"
			;;
		*)
			break;;
	esac
	shift
done

KVERREL="$(test -n "$1" && echo "-$1" || echo "")"
FLAVOR="$(test -n "$2" && echo "-$2" || echo "-ark")"
# shellcheck disable=SC2015
SCRIPT=$(readlink -f "$0")
SCRIPT_DIR=$(dirname "$SCRIPT")

# Config options for RHEL should target the pending-ark directory, not pending-common.
if [ "$FLAVOR" = "-rhel" ]
then
	FLAVOR="-ark"
fi

# to handle this script being a symlink
cd "$SCRIPT_DIR"

if test -n "$COMMITNEWCONFIGS"; then
	commit_new_configs
else
	process_configs
fi

exit $RETURNCODE