summaryrefslogtreecommitdiffstats
path: root/tools/mkdepend.tcl
blob: 6e3d6ed00298dd62d84fd5975b35de728b83172c (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
412
413
414
415
416
417
418
419
420
#==============================================================================
#
# mkdepend : generate dependency information from C/C++ files
#
# Copyright © 1998, Nat Pryce
#
# Permission is hereby granted, without written agreement and without
# license or royalty fees, to use, copy, modify, and distribute this
# software and its documentation for any purpose, provided that the
# above copyright notice and the following two paragraphs appear in
# all copies of this software.
#
# IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
# SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
# THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE AUTHOR HAS BEEN ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
#
# THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS"
# BASIS, AND THE AUTHOR HAS NO OBLIGATION TO PROVIDE  MAINTENANCE, SUPPORT,
# UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#==============================================================================
#
# Modified heavily by David Gravereaux <davygrvy@pobox.com> about 9/17/2006.
# Original can be found @
#	http://web.archive.org/web/20070616205924/http://www.doc.ic.ac.uk/~np2/software/mkdepend.html
#==============================================================================

array set mode_data {}
set mode_data(vc32) {cl -nologo -E}

set source_extensions [list .c .cpp .cxx .cc]

set excludes [list]
if [info exists env(INCLUDE)] {
    set rawExcludes [split [string trim $env(INCLUDE) ";"] ";"]
    foreach exclude $rawExcludes {
	lappend excludes [file normalize $exclude]
    }
}


# openOutput --
#
#	Opens the output file.
#
# Arguments:
#	file	The file to open
#
# Results:
#	None.

proc openOutput {file} {
    global output
    set output [open $file w]
    puts $output "# Automatically generated at [clock format [clock seconds] -format "%Y-%m-%dT%H:%M:%S"] by [info script]\n"
}

# closeOutput --
#
#	Closes output file.
#
# Arguments:
#	none
#
# Results:
#	None.

proc closeOutput {} {
    global output
    if {[string match stdout $output] != 0} {
        close $output
    }
}

# readDepends --
#
#	Read off CCP pipe for #line references.
#
# Arguments:
#	chan	The pipe channel we are reading in.
#
# Results:
#	Raw dependency list pairs.

proc readDepends {chan} {
    set line ""
    array set depends {}

    while {[gets $chan line] >= 0} {
        if {[regexp {^#line [0-9]+ \"(.*)\"$} $line dummy fname] != 0} {
	    set fname [file normalize $fname]
            if {![info exists target]} {
		# this is ourself
		set target $fname
		puts stderr "processing [file tail $fname]"
            } else {
		# don't include ourselves as a dependency of ourself.
		if {![string compare $fname $target]} {continue}
		# store in an array so multiple occurrences are not counted.
                set depends($target|$fname) ""
            }
        }
    }

    set result {}
    foreach n [array names depends] {
        set pair [split $n "|"]
        lappend result [list [lindex $pair 0] [lindex $pair 1]]
    }

    return $result
}

# writeDepends --
#
#	Write the processed list out to the file.
#
# Arguments:
#	out		The channel to write to.
#	depends		The list of dependency pairs
#
# Results:
#	None.

proc writeDepends {out depends} {
    foreach pair $depends {
        puts $out "[lindex $pair 0] : \\\n\t[join [lindex $pair 1] " \\\n\t"]"
    }
}

# stringStartsWith --
#
#	Compares second string to the beginning of the first.
#
# Arguments:
#	str		The string to test the beginning of.
#	prefix		The string to test against
#
# Results:
#	the result of the comparison.

proc stringStartsWith {str prefix} {
    set front [string range $str 0 [expr {[string length $prefix] - 1}]]
    return [expr {[string compare [string tolower $prefix] \
                                  [string tolower $front]] == 0}]
}

# filterExcludes --
#
#	Remove non-project header files.
#
# Arguments:
#	depends		List of dependency pairs.
#	excludes	List of directories that should be removed
#
# Results:
#	the processed dependency list.

proc filterExcludes {depends excludes} {
    set filtered {}

    foreach pair $depends {
        set excluded 0
        set file [lindex $pair 1]

        foreach dir $excludes {
            if [stringStartsWith $file $dir] {
                set excluded 1
                break;
            }
        }

        if {!$excluded} {
            lappend filtered $pair
        }
    }

    return $filtered
}

# replacePrefix --
#
#	Take the normalized search path and put back the
#	macro name for it.
#
# Arguments:
#	file	filename.
#
# Results:
#	filename properly replaced with macro for it.

proc replacePrefix {file} {
    global srcPathList srcPathReplaceList

    foreach was $srcPathList is $srcPathReplaceList {
	regsub $was $file $is file
    }
    return $file
}

# rebaseFiles --
#
#	Replaces normalized paths with original macro names.
#
# Arguments:
#	depends		Dependency pair list.
#
# Results:
#	The processed dependency pair list.

proc rebaseFiles {depends} {
    set rebased {}
    foreach pair $depends {
        lappend rebased [list \
                [replacePrefix [lindex $pair 0]] \
		[replacePrefix [lindex $pair 1]]]

    }
    return $rebased
}

# compressDeps --
#
#	Compresses same named tragets into one pair with
#	multiple deps.
#
# Arguments:
#	depends	Dependency pair list.
#
# Results:
#	The processed list.

proc compressDeps {depends} {
    array set compressed [list]

    foreach pair $depends {
	lappend compressed([lindex $pair 0]) [lindex $pair 1]
    }

    set result [list]
    foreach n [array names compressed] {
        lappend result [list $n [lsort $compressed($n)]]
    }

    return $result
}

# addSearchPath --
#
#	Adds a new set of path and replacement string to the global list.
#
# Arguments:
#	newPathInfo	comma seperated path and replacement string
#
# Results:
#	None.

proc addSearchPath {newPathInfo} {
    global srcPathList srcPathReplaceList

    set infoList [split $newPathInfo ,]
    lappend srcPathList [file normalize [lindex $infoList 0]]
    lappend srcPathReplaceList [lindex $infoList 1]
}


# displayUsage --
#
#	Displays usage to stderr
#
# Arguments:
#	none.
#
# Results:
#	None.

proc displayUsage {} {
    puts stderr "mkdepend.tcl \[options\] genericDir,macroName compatDir,macroName platformDir,macroName"
}

# readInputListFile --
#
#	Open and read the object file list.
#
# Arguments:
#	objectListFile - name of the file to open.
#
# Results:
#	None.

proc readInputListFile {objectListFile} {
    global srcFileList srcPathList source_extensions
    set f [open $objectListFile r]
    set fl [read $f]
    close $f

    # fix native path seperator so it isn't treated as an escape.
    regsub -all {\\} $fl {/} fl

    # Treat the string as a list so filenames between double quotes are
    # treated as list elements.
    foreach fname $fl {
	# Compiled .res resource files should be ignored.
	if {[file extension $fname] ne ".obj"} {continue}

	# Just filename without path or extension because the path is
	# the build directory, not where the source files are located.
	set baseName [file rootname [file tail $fname]]

	set found 0
	foreach path $srcPathList {
	    foreach ext $source_extensions {
		set test [file join $path ${baseName}${ext}]
		if {[file exist $test]} {
		    lappend srcFileList $test
		    set found 1
		    break
		}
	    }
	    if {$found} break
	}
    }
}

# main --
#
#	The main procedure of this script.
#
# Arguments:
#	none.
#
# Results:
#	None.

proc main {} {
    global argc argv mode mode_data srcFileList srcPathList excludes
    global remove_prefix target_prefix output env

    set srcPathList [list]
    set srcFileList [list]

    if {$argc == 1} {displayUsage}

    # Parse mkdepend input
    for {set i 0} {$i < [llength $argv]} {incr i} {
	switch -glob -- [set arg [lindex $argv $i]] {
	    -vc32 {
		set mode vc32
	    }
	    -bc32 {
		set mode bc32
	    }
	    -wc32 {
		set mode wc32
	    }
	    -lc32 {
		set mode lc32
	    }
	    -mgw32 {
		set mode mgw32
	    }
	    -passthru:* {
		set passthru [string range $arg 10 end]
		regsub -all {"} $passthru {\"} passthru
		regsub -all {\\} $passthru {/} passthru
	    }
	    -out:* {
		openOutput [string range $arg 5 end]
	    }
	    @* {
		set objfile [string range $arg 1 end]
		regsub -all {\\} $objfile {/} objfile
		readInputListFile $objfile
	    }
	    -? - -help - --help {
		displayUsage
		exit 1
	    }
	    default {
		if {![info exist mode]} {
		    puts stderr "mode not set"
		    displayUsage
		}
		addSearchPath $arg
	    }
	}
    }

    # Execute the CPP command and parse output

    foreach srcFile $srcFileList {
	if {[catch {
	    set command "$mode_data($mode) $passthru \"$srcFile\""
	    set input [open |$command r]
	    set depends [readDepends $input]
	    set status [catch {close $input} result]
	    if {$status == 1 && [lindex $::errorCode 0] eq "CHILDSTATUS"} {
		foreach { - pid code } $::errorCode break
		if {$code == 2} {
		    # preprocessor died a cruel death.
		    error $result
		}
	    }
	} err]} {
	    puts stderr "error ocurred: $err\n"
	    continue
	}
	set depends [filterExcludes $depends $excludes]
	set depends [rebaseFiles $depends]
	set depends [compressDeps $depends]
	writeDepends $output $depends
    }

    closeOutput
}

# kick it up.
main