summaryrefslogtreecommitdiffstats
path: root/tool/mksqlite3c.tcl
blob: ef8353df4f72543650f93b8cd2af619568825779 (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
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
#!/usr/bin/tclsh
#
# To build a single huge source file holding all of SQLite (or at
# least the core components - the test harness, shell, and TCL
# interface are omitted.) first do
#
#      make target_source
#
# The make target above moves all of the source code files into
# a subdirectory named "tsrc".  (This script expects to find the files
# there and will not work if they are not found.)  There are a few
# generated C code files that are also added to the tsrc directory.
# For example, the "parse.c" and "parse.h" files to implement the
# the parser are derived from "parse.y" using lemon.  And the
# "keywordhash.h" files is generated by a program named "mkkeywordhash".
#
# After the "tsrc" directory has been created and populated, run
# this script:
#
#      tclsh mksqlite3c.tcl [flags] [extra source files]
#
# The amalgamated SQLite code will be written into sqlite3.c
#

set help {Usage: tclsh mksqlite3c.tcl <options>
 where <options> is zero or more of the following with these effects:
   --nostatic     => Do not generate with compile-time modifiable linkage.
   --linemacros=?  => Emit #line directives into output or not. (? = 1 or 0)
   --useapicall   => Prepend functions with SQLITE_APICALL or SQLITE_CDECL.
   --srcdir $SRC  => Specify the directory containing constituent sources.
   --help         => See this.
 The value setting options default to --linemacros=1 and '--srcdir tsrc' .
}

# Begin by reading the "sqlite3.h" header file.  Extract the version number
# from in this file.  The version number is needed to generate the header
# comment of the amalgamation.
#

set addstatic 1
set linemacros 0
set useapicall 0
set enable_recover 0
set srcdir tsrc
set extrasrc [list]

for {set i 0} {$i<[llength $argv]} {incr i} {
  set x [lindex $argv $i]
  if {[regexp {^-?-enable-recover$} $x]} {
    set enable_recover 1
  } elseif {[regexp {^-?-nostatic$} $x]} {
    set addstatic 0
  } elseif {[regexp {^-?-linemacros(?:=([01]))?$} $x ma ulm]} {
    if {$ulm == ""} {set ulm 1}
    set linemacros $ulm
  } elseif {[regexp {^-?-useapicall$} $x]} {
    set useapicall 1
  } elseif {[regexp {^-?-srcdir$} $x]} {
    incr i
    if {$i==[llength $argv]} {
      error "No argument following $x"
    }
    set srcdir [lindex $argv $i]
  } elseif {[regexp {^-?-((help)|\?)$} $x]} {
    puts $help
    exit 0
  } elseif {[regexp {^-?-} $x]} {
    error "unknown command-line option: $x"
  } else {
    lappend extrasrc $x
  }
}
set in [open $srcdir/sqlite3.h]
set cnt 0
set VERSION ?????
while {![eof $in]} {
  set line [gets $in]
  if {$line=="" && [eof $in]} break
  incr cnt
  regexp {#define\s+SQLITE_VERSION\s+"(.*)"} $line all VERSION
}
close $in

# Open the output file and write a header comment at the beginning
# of the file.
#
set fname sqlite3.c
if {$enable_recover} { set fname sqlite3r.c }
set out [open $fname w]
# Force the output to use unix line endings, even on Windows.
fconfigure $out -translation lf
set today [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S UTC" -gmt 1]
puts $out [subst \
{/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version $VERSION.  By combining all the individual C code files into this
** single large file, the entire code can be compiled as a single translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% or more are commonly seen when SQLite is compiled as a single
** translation unit.
**
** This file is all you need to compile SQLite.  To use SQLite in other
** programs, you need this file and the "sqlite3.h" header file that defines
** the programming interface to the SQLite library.  (If you do not have
** the "sqlite3.h" header file at hand, you will find a copy embedded within
** the text of this file.  Search for "Begin file sqlite3.h" to find the start
** of the embedded sqlite3.h header file.) Additional code files may be needed
** if you want a wrapper to interface SQLite with your choice of programming
** language. The code for the "sqlite3" command-line shell is also in a
** separate file. This file contains only code for the core SQLite library.
**}]
set srcroot [file dirname [file dirname [info script]]]
if {$tcl_platform(platform)=="windows"} {
  set vsrcprog src-verify.exe
} else {
  set vsrcprog ./src-verify
}
if {[file executable $vsrcprog] && [file readable $srcroot/manifest]} {
  set res [string trim [split [exec $vsrcprog -x $srcroot]] \n]
  puts $out "** The content in this amalgamation comes from Fossil check-in"
  puts -nonewline $out "** [string range [lindex $res 0] 0 35]"
  if {[llength $res]==1} {
    puts $out "."
  } else {
    puts $out " with changes in files:\n**"
    foreach f [lrange $res 1 end] {
       puts $out "**    $f"
    }
  }
} else {
  puts $out "** The origin of the sources used to build this amalgamation"
  puts $out "** is unknown."
}
puts $out [subst {*/
#define SQLITE_CORE 1
#define SQLITE_AMALGAMATION 1}]
if {$addstatic} {
  puts $out \
{#ifndef SQLITE_PRIVATE
# define SQLITE_PRIVATE static
#endif}
}

# Examine the parse.c file.  If it contains lines of the form:
#
#    "#ifndef SQLITE_ENABLE_UPDATE_LIMIT
# 
# then set the SQLITE_UDL_CAPABLE_PARSER flag in the amalgamation.
#
set in [open $srcdir/parse.c]
if {[regexp {ifndef SQLITE_ENABLE_UPDATE_DELETE_LIMIT} [read $in]]} {
  puts $out "#define SQLITE_UDL_CAPABLE_PARSER 1"
}
close $in

# These are the header files used by SQLite.  The first time any of these
# files are seen in a #include statement in the C code, include the complete
# text of the file in-line.  The file only needs to be included once.
#
foreach hdr {
   btree.h
   btreeInt.h
   fts3.h
   fts3Int.h
   fts3_hash.h
   fts3_tokenizer.h
   geopoly.c
   hash.h
   hwtime.h
   keywordhash.h
   msvc.h
   mutex.h
   opcodes.h
   os_common.h
   os_setup.h
   os_win.h
   os.h
   pager.h
   parse.h
   pcache.h
   pragma.h
   rtree.h
   sqlite3session.h
   sqlite3.h
   sqlite3ext.h
   sqlite3rbu.h
   sqliteicu.h
   sqliteInt.h
   sqliteLimit.h
   vdbe.h
   vdbeInt.h
   vxworks.h
   wal.h
   whereInt.h
   sqlite3recover.h
} {
  set available_hdr($hdr) 1
}
set available_hdr(sqliteInt.h) 0
set available_hdr(os_common.h) 0
set available_hdr(sqlite3session.h) 0

# These headers should be copied into the amalgamation without modifying any
# of their function declarations or definitions.
set varonly_hdr(sqlite3.h) 1

# These are the functions that accept a variable number of arguments.  They
# always need to use the "cdecl" calling convention even when another calling
# convention (e.g. "stcall") is being used for the rest of the library.
set cdecllist {
  sqlite3_config
  sqlite3_db_config
  sqlite3_log
  sqlite3_mprintf
  sqlite3_snprintf
  sqlite3_test_control
  sqlite3_vtab_config
}

# 78 stars used for comment formatting.
set s78 \
{*****************************************************************************}

# Insert a comment into the code
#
proc section_comment {text} {
  global out s78
  set n [string length $text]
  set nstar [expr {60 - $n}]
  set stars [string range $s78 0 $nstar]
  puts $out "/************** $text $stars/"
}

# Read the source file named $filename and write it into the
# sqlite3.c output file.  If any #include statements are seen,
# process them appropriately.
#
proc copy_file {filename} {
  global seen_hdr available_hdr varonly_hdr cdecllist out
  global addstatic linemacros useapicall srcdir
  set ln 0
  set tail [file tail $filename]
  section_comment "Begin file $tail"
  if {$linemacros} {puts $out "#line 1 \"$filename\""}
  set in [open $filename r]
  set varpattern {^[a-zA-Z][a-zA-Z_0-9 *]+(sqlite3[_a-zA-Z0-9]+)(\[|;| =)}
  set declpattern {([a-zA-Z][a-zA-Z_0-9 ]+ \**)(sqlite3[_a-zA-Z0-9]+)(\(.*)}
  if {[file extension $filename]==".h"} {
    set declpattern " *$declpattern"
  }
  set declpattern ^$declpattern\$
  while {![eof $in]} {
    set line [string trimright [gets $in]]
    incr ln
    if {[regexp {^\s*#\s*include\s+["<]([^">]+)[">]} $line all hdr]} {
      if {[info exists available_hdr($hdr)]} {
        if {$available_hdr($hdr)} {
          set available_hdr($hdr) 0
          section_comment "Include $hdr in the middle of $tail"
          copy_file $srcdir/$hdr
          section_comment "Continuing where we left off in $tail"
          if {$linemacros} {puts $out "#line [expr {$ln+1}] \"$filename\""}
        } else {
          # Comment out the entire line, replacing any nested comment
          # begin/end markers with the harmless substring "**".
          puts $out "/* [string map [list /* ** */ **] $line] */"
        }
      } elseif {![info exists seen_hdr($hdr)]} {
        if {![regexp {/\*\s+amalgamator:\s+dontcache\s+\*/} $line]} {
          set seen_hdr($hdr) 1
        }
        puts $out $line
      } elseif {[regexp {/\*\s+amalgamator:\s+keep\s+\*/} $line]} {
        # This include file must be kept because there was a "keep"
        # directive inside of a line comment.
        puts $out $line
      } else {
        # Comment out the entire line, replacing any nested comment
        # begin/end markers with the harmless substring "**".
        puts $out "/* [string map [list /* ** */ **] $line] */"
      }
    } elseif {[regexp {^#ifdef __cplusplus} $line]} {
      puts $out "#if 0"
    } elseif {!$linemacros && [regexp {^#line} $line]} {
      # Skip #line directives.
    } elseif {$addstatic
               && ![regexp {^(static|typedef|SQLITE_PRIVATE)} $line]} {
      # Skip adding the SQLITE_PRIVATE or SQLITE_API keyword before
      # functions if this header file does not need it.
      if {![info exists varonly_hdr($tail)]
       && [regexp $declpattern $line all rettype funcname rest]} {
        regsub {^SQLITE_API } $line {} line
        regsub {^SQLITE_API } $rettype {} rettype

        # Add the SQLITE_PRIVATE or SQLITE_API keyword before functions.
        # so that linkage can be modified at compile-time.
        if {[regexp {^sqlite3[a-z]*_} $funcname]} {
          set line SQLITE_API
          append line " " [string trim $rettype]
          if {[string index $rettype end] ne "*"} {
            append line " "
          }
          if {$useapicall} {
            if {[lsearch -exact $cdecllist $funcname] >= 0} {
              append line SQLITE_CDECL " "
            } else {
              append line SQLITE_APICALL " "
            }
          }
          append line $funcname $rest
          if {$funcname=="sqlite3_sourceid"} {
            # The sqlite3_sourceid() routine is synthesized at the end of
            # the amalgamation
            puts $out "/* $line */"
          } else {
            puts $out $line
          }
        } else {
          puts $out "SQLITE_PRIVATE $line"
        }
      } elseif {[regexp $varpattern $line all varname]} {
          # Add the SQLITE_PRIVATE before variable declarations or
          # definitions for internal use
          regsub {^SQLITE_API } $line {} line
          if {![regexp {^sqlite3_} $varname]
              && ![regexp {^sqlite3Show[A-Z]} $varname]} {
            regsub {^extern } $line {} line
            puts $out "SQLITE_PRIVATE $line"
          } else {
            if {[regexp {const char sqlite3_version\[\];} $line]} {
              set line {const char sqlite3_version[] = SQLITE_VERSION;}
            }
            regsub {^SQLITE_EXTERN } $line {} line
            puts $out "SQLITE_API $line"
          }
      } elseif {[regexp {^(SQLITE_EXTERN )?void \(\*sqlite3IoTrace\)} $line]} {
        regsub {^SQLITE_API } $line {} line
        regsub {^SQLITE_EXTERN } $line {} line
        puts $out $line
      } elseif {[regexp {^void \(\*sqlite3Os} $line]} {
        regsub {^SQLITE_API } $line {} line
        puts $out "SQLITE_PRIVATE $line"
      } else {
        puts $out $line
      }
    } else {
      puts $out $line
    }
  }
  close $in
  section_comment "End of $tail"
}

# Read the source file named $filename and write it into the
# sqlite3.c output file. The only transformation is the trimming
# of EOL whitespace.
#
proc copy_file_verbatim {filename} {
  global out
  set in [open $filename r]
  set tail [file tail $filename]
  section_comment "Begin EXTRA_SRC file $tail"
  while {![eof $in]} {
    set line [string trimright [gets $in]]
    puts $out $line
  }
  section_comment "End of EXTRA_SRC $tail"
}

# Process the source files.  Process files containing commonly
# used subroutines first in order to help the compiler find
# inlining opportunities.
#
set flist {
   sqliteInt.h
   os_common.h
   ctime.c

   global.c
   status.c
   date.c
   os.c

   fault.c
   mem0.c
   mem1.c
   mem2.c
   mem3.c
   mem5.c
   mutex.c
   mutex_noop.c
   mutex_unix.c
   mutex_w32.c
   malloc.c
   printf.c
   treeview.c
   random.c
   threads.c
   utf.c
   util.c
   hash.c
   opcodes.c

   os_kv.c
   os_unix.c
   os_win.c
   memdb.c

   bitvec.c
   pcache.c
   pcache1.c
   rowset.c
   pager.c
   wal.c

   btmutex.c
   btree.c
   backup.c

   vdbemem.c
   vdbeaux.c
   vdbeapi.c
   vdbetrace.c
   vdbe.c
   vdbeblob.c
   vdbesort.c
   vdbevtab.c
   memjournal.c

   walker.c
   resolve.c
   expr.c
   alter.c
   analyze.c
   attach.c
   auth.c
   build.c
   callback.c
   delete.c
   func.c
   fkey.c
   insert.c
   legacy.c
   loadext.c
   pragma.c
   prepare.c
   select.c
   table.c
   trigger.c
   update.c
   upsert.c
   vacuum.c
   vtab.c
   wherecode.c
   whereexpr.c
   where.c
   window.c

   parse.c

   tokenize.c
   complete.c

   main.c
   notify.c

   fts3.c
   fts3_aux.c
   fts3_expr.c
   fts3_hash.c
   fts3_porter.c
   fts3_tokenizer.c
   fts3_tokenizer1.c
   fts3_tokenize_vtab.c
   fts3_write.c
   fts3_snippet.c
   fts3_unicode.c
   fts3_unicode2.c

   json.c
   rtree.c
   icu.c
   fts3_icu.c
   sqlite3rbu.c
   dbstat.c
   dbpage.c
   sqlite3session.c
   fts5.c
   stmt.c
}
if {$enable_recover} {
  lappend flist sqlite3recover.c dbdata.c
}
foreach file $flist {
  copy_file $srcdir/$file
}
foreach file $extrasrc {
  copy_file_verbatim $file
}

puts $out \
"/* Return the source-id for this library */
SQLITE_API const char *sqlite3_sourceid(void){ return SQLITE_SOURCE_ID; }"

puts $out \
"/************************** End of sqlite3.c ******************************/"

close $out