Annotation of src/etc/MAKEDEV.awk, Revision 1.17
1.1 jdolecek 1: #!/usr/bin/awk -
2: #
1.17 ! dsl 3: # $NetBSD: MAKEDEV.awk,v 1.16 2005/06/14 20:47:46 he Exp $
1.1 jdolecek 4: #
5: # Copyright (c) 2003 The NetBSD Foundation, Inc.
6: # All rights reserved.
7: #
8: # This code is derived from software contributed to The NetBSD Foundation
9: # by Jaromir Dolecek.
10: #
11: # Redistribution and use in source and binary forms, with or without
12: # modification, are permitted provided that the following conditions
13: # are met:
14: # 1. Redistributions of source code must retain the above copyright
15: # notice, this list of conditions and the following disclaimer.
16: # 2. Redistributions in binary form must reproduce the above copyright
17: # notice, this list of conditions and the following disclaimer in the
18: # documentation and/or other materials provided with the distribution.
19: # 3. All advertising materials mentioning features or use of this software
20: # must display the following acknowledgement:
21: # This product includes software developed by the NetBSD
22: # Foundation, Inc. and its contributors.
23: # 4. Neither the name of The NetBSD Foundation nor the names of its
24: # contributors may be used to endorse or promote products derived
25: # from this software without specific prior written permission.
26: #
27: # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: # POSSIBILITY OF SUCH DAMAGE.
38: #
39:
1.2 jdolecek 40: # Script to generate platform MAKEDEV script from MI template, MD
41: # MAKEDEV.conf and MD/MI major lists
42: #
43: # Uses environment variables MACHINE/MACHINE_ARCH to select
44: # appropriate files, and NETBSDSRCDIR to get root of source tree.
45:
1.1 jdolecek 46: BEGIN {
47: # top of source tree, used to find major number list in kernel
48: # sources
1.11 lukem 49: machine = ENVIRON["MACHINE"]
50: maarch = ENVIRON["MACHINE_ARCH"]
51: srcdir = ENVIRON["NETBSDSRCDIR"]
52: if (!machine || !maarch || !srcdir) {
53: print "ERROR: 'MACHINE', 'MACHINE_ARCH' and 'NETBSDSRCDIR' must be set in environment" > "/dev/stderr"
54: exit 1
55: }
56: top = srcdir "/sys/"
1.1 jdolecek 57: if (system("test -d '" top "'") != 0) {
1.4 jdolecek 58: print "ERROR: can't find top of kernel source tree ('" top "' not a directory)" > "/dev/stderr"
1.1 jdolecek 59: exit 1
60: }
61:
62:
63: # file with major definitions
64: majors[0] = "conf/majors"
1.9 jdolecek 65: if ((maarch == "arm" || maarch == "armeb") && system("test -f '" top "arch/" machine "/conf/majors." machine "'") != 0)
1.1 jdolecek 66: majors[1] = "arch/arm/conf/majors.arm32";
67: else if (machine == "evbsh5") {
68: majors[1] = "arch/evbsh5/conf/majors.evbsh5";
69: majors[2] = "arch/sh5/conf/majors.sh5";
1.6 jdolecek 70: } else if (machine == "sbmips")
71: majors[1] = "arch/evbmips/conf/majors.evbmips";
72: else
1.1 jdolecek 73: majors[1] = "arch/" machine "/conf/majors." machine;
74:
75: # process all files with majors and fill the chr[] and blk[]
76: # arrays, used in template processing
1.3 itojun 77: for (m in majors) {
1.1 jdolecek 78: file = top majors[m]
1.4 jdolecek 79: if (system("test -f '" file "'") != 0) {
80: print "ERROR: can't find majors file '" file "'" > "/dev/stderr"
81: exit 1
82: }
1.1 jdolecek 83: while (getline < file) {
84: if ($1 == "device-major") {
85: if ($3 == "char") {
86: chr[$2] = $4
87: if ($5 == "block")
88: blk[$2] = $6
89: } else if ($3 == "block")
90: blk[$2] = $4
91: }
92: }
1.5 jdolecek 93: close(file)
1.1 jdolecek 94: }
1.17 ! dsl 95: CONSOLE_CMAJOR = chr["cons"]
! 96: if (CONSOLE_CMAJOR == "") {
! 97: print "ERROR: no entry for 'cons' in majors file" > "/dev/stderr"
! 98: exit 1
! 99: }
1.1 jdolecek 100:
1.5 jdolecek 101: # read MD config file for MD device targets
1.11 lukem 102: cfgfile = srcdir "/etc/etc." machine "/MAKEDEV.conf"
1.5 jdolecek 103: if (system("test -f '" cfgfile "'") != 0) {
1.7 jdolecek 104: print "ERROR: no platform MAKEDEV.conf - '" cfgfile "' doesn't exist" > "/dev/stderr"
1.5 jdolecek 105: exit 1
106: }
1.12 jdolecek 107: # skip first two lines
108: getline CONFRCSID < cfgfile # RCS Id
109: getline < cfgfile # blank line
1.2 jdolecek 110: MDDEV = 0 # MD device targets
111: while (getline < cfgfile) {
1.5 jdolecek 112: if (MDDEV)
113: MDDEV = MDDEV "\n" $0
114: else
115: MDDEV = $0
116: }
117: close(cfgfile)
118:
119: # determine number of partitions used by platform
120: # there are three variants in tree:
121: # 1. MAXPARTITIONS = 8
122: # 2. MAXPARTITIONS = 16 with no back compat mapping
123: # 3. MAXPARTITIONS = 16 with back compat with old limit of 8
124: # currently all archs, which moved from 8->16 use same
125: # scheme for mapping disk minors, high minor offset
126: # if this changes, the below needs to be adjusted and
127: # additional makedisk_p16foo needs to be added
128: incdir = machine
129: diskpartitions = 0
130: diskbackcompat = 0
131: while (1) {
132: inc = top "arch/" incdir "/include/disklabel.h"
133: if (system("test -f '" inc "'") != 0) {
134: print "ERROR: can't find kernel include file '" inc "'" > "/dev/stderr"
135: exit 1
136: }
137: incdir = 0
138: while (getline < inc) {
1.6 jdolecek 139: if ($1 == "#define" && $2 == "MAXPARTITIONS")
1.5 jdolecek 140: diskpartitions = $3
1.6 jdolecek 141: else if ($1 == "#define" && $2 == "OLDMAXPARTITIONS")
142: diskbackcompat = $3
143: else if ($1 == "#define" && $2 == "RAW_PART")
144: RAWDISK_OFF = $3
1.16 he 145: else if ($1 == "#include" &&
146: $2 ~ "<.*/disklabel.h>" &&
147: $2 !~ ".*nbinclude.*")
148: {
1.5 jdolecek 149: # wrapper, switch to the right file
150: incdir = substr($2, 2)
151: sub("/.*", "", incdir)
152: break;
153: }
154: }
1.13 enami 155: close(inc)
1.5 jdolecek 156:
157: if (diskpartitions)
158: break;
159:
160: if (!incdir) {
161: print "ERROR: can't determine MAXPARTITIONS from include file '" inc "'" > "/dev/stderr"
162: exit 1
163: }
1.2 jdolecek 164: }
1.5 jdolecek 165: MKDISK = "makedisk_p" diskpartitions # routine to create disk devs
1.6 jdolecek 166: DISKMINOROFFSET = diskpartitions
167: if (diskbackcompat) {
1.5 jdolecek 168: MKDISK = MKDISK "high"
1.6 jdolecek 169: DISKMINOROFFSET = diskbackcompat
170: }
171: RAWDISK_NAME = sprintf("%c", 97 + RAWDISK_OFF) # a+offset
1.2 jdolecek 172:
1.11 lukem 173: # read etc/master.passwd for user name->UID mapping
174: idfile = srcdir "/etc/master.passwd"
175: if (system("test -f '" idfile "'") != 0) {
176: print "ERROR: can't find password file '" idfile "'" > "/dev/stderr"
177: exit 1
178: }
179: oldFS=FS
180: FS=":"
181: while (getline < idfile) {
182: uid[$1] = $3
183: }
184: close(idfile)
185: FS=oldFS
186:
187: # read etc/group for group name->GID mapping
188: idfile = srcdir "/etc/group"
189: if (system("test -f '" idfile "'") != 0) {
190: print "ERROR: can't find group file '" idfile "'" > "/dev/stderr"
191: exit 1
192: }
193: oldFS=FS
194: FS=":"
195: while (getline < idfile) {
196: gid[$1] = $3
197: }
198: close(idfile)
199: FS=oldFS
200:
1.1 jdolecek 201: # initially no substitutions
202: devsubst = 0
203: deventry = ""
204: }
205:
206: /%MI_DEVICES_BEGIN%/ {
207: devsubst = 1;
208: next
209: }
210:
211: /%MI_DEVICES_END%/ {
212: devsubst = 0;
213: next
214: }
215:
1.12 jdolecek 216: # output 'Generated from' lines
217: /\$[N]etBSD/ {
218: print "#"
219: print "# Generated from:"
220:
221: # MAKEDEV.awk (this script) RCS Id
1.17 ! dsl 222: ARCSID = "$NetBSD: MAKEDEV.awk,v 1.16 2005/06/14 20:47:46 he Exp $"
1.12 jdolecek 223: gsub(/\$/, "", ARCSID)
224: print "# " ARCSID
225:
226: # MAKEDEV.tmpl RCS Id
227: gsub(/\$/, "")
228: print $0
229:
230: # MD MAKEDEV.conf RCS Id
231: # strip leading hash and insert machine subdirectory name
232: gsub(/\$/, "", CONFRCSID)
233: sub(/^\# /, "", CONFRCSID)
234: sub(/MAKEDEV.conf/, "etc." machine "/MAKEDEV.conf", CONFRCSID)
235: print "# " CONFRCSID
236:
237: next # don't print the RCS Id line again
238: }
239:
240: # filter the 'PLEASE RUN ...' paragraph
241: /^\# PLEASE RUN/, /^\#\#\#\#\#\#/ {
242: next
243: }
244:
245: # filter the device list
246: /^\# Tapes/,/^$/ {
247: next
248: }
249:
1.4 jdolecek 250: # filter the two unneeded makedisk_p* routines, leave only
251: # the one used
1.10 dmcmahil 252: /^makedisk_p8\(\) \{/, /^\}/ {
1.4 jdolecek 253: if (MKDISK != "makedisk_p8")
254: next;
255: }
1.10 dmcmahil 256: /^makedisk_p16\(\) \{/, /^\}/ {
1.4 jdolecek 257: if (MKDISK != "makedisk_p16")
258: next;
259: }
1.10 dmcmahil 260: /^makedisk_p16high\(\) \{/, /^\}/ {
1.4 jdolecek 261: if (MKDISK != "makedisk_p16high")
262: next;
263: }
264:
1.11 lukem 265: # special cases aside, handle normal line
1.1 jdolecek 266: {
1.8 jdolecek 267: sub(/^%MD_DEVICES%/, MDDEV)
268: sub(/%MKDISK%/, MKDISK)
269: sub(/%DISKMINOROFFSET%/, DISKMINOROFFSET)
270: sub(/%RAWDISK_OFF%/, RAWDISK_OFF)
271: sub(/%RAWDISK_NAME%/, RAWDISK_NAME)
1.17 ! dsl 272: sub(/%CONSOLE_CMAJOR%/, CONSOLE_CMAJOR)
1.14 enami 273: parsed = ""
274: line = $0
275: while (match(line, /%[gu]id_[a-z]*%/)) {
276: typ = substr(line, RSTART + 1, 3);
277: nam = substr(line, RSTART + 5, RLENGTH - 6);
278: if (typ == "uid") {
279: if (!(nam in uid)) {
280: print "ERROR unmatched uid in `" $0 "'" > \
281: "/dev/stderr"
282: exit 1
283: } else
284: id = uid[nam];
285: } else {
286: if (!(nam in gid)) {
287: print "ERROR unmatched gid in `" $0 "'" > \
288: "/dev/stderr"
289: exit 1
290: } else
291: id = gid[nam];
292: }
1.15 enami 293: parsed = parsed substr(line, 1, RSTART - 1) id
1.14 enami 294: line = substr(line, RSTART + RLENGTH)
1.11 lukem 295: }
1.14 enami 296: $0 = parsed line
1.2 jdolecek 297:
1.1 jdolecek 298: # if device substitutions are not active, do nothing more
299: if (!devsubst) {
300: print
301: next
302: }
303: }
304:
305: # first line of device entry
306: /^[a-z].*\)$/ {
307: if (length(deventry) > 0) {
308: # We have a previous entry to print. Replace all known
309: # character and block devices. If no unknown character
310: # or block device definition remains within the entry,
311: # print it to output, otherwise scrap it.
1.14 enami 312: parsed = ""
313: while (match(deventry, /%[a-z]*_(blk|chr)%/)) {
314: nam = substr(deventry, RSTART + 1, RLENGTH - 6);
315: typ = substr(deventry, RSTART + RLENGTH - 4, 3);
316: if (typ == "blk") {
317: if (!(nam in blk)) {
318: deventry = $0
319: next
320: } else
321: dev = blk[nam];
322: } else {
323: if (!(nam in chr)) {
324: deventry = $0
325: next
326: } else
327: dev = chr[nam];
328: }
1.15 enami 329: parsed = parsed substr(deventry, 1, RSTART - 1) dev
1.14 enami 330: deventry = substr(deventry, RSTART + RLENGTH)
331: }
1.1 jdolecek 332:
1.14 enami 333: print parsed deventry
1.1 jdolecek 334: }
335: deventry = $0
336: next
337: }
338:
339: # template line within device substitution section - just keep appending
340: # to the current entry
341: {
342: deventry = deventry "\n" $0
343: }
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