This file is indexed.

/usr/bin/gac is in gap-dev 4r6p5-3.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  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
#!/bin/sh
#############################################################################
##
#W  gac.sh                      GAP compiler                 Martin Schoenert
##
##
#Y  Copyright (C)  1997,  Lehrstuhl D fuer Mathematik,  RWTH Aachen,  Germany
##
##  gac [-d] [-c|-C] [-o <output>] {-f<option>} <input>...
##
##  'gac'  compiles the input files.   Input files  must be  GAP  source code
##  (suffix '.g' or '.gap'),  C source code (suffix '.c'),  or compiled  code
##  files (suffix '.o').
##
##  If '-d' is given then the code is compiled for dynamic loading
##  
##  If  neither '-c' nor '-C'  is given,  then 'gac'  compiles the code completely,
##  producing a  new kernel for static compilation or a dynamically loadable '.so'
##  file for dynamic compilation.
##
##  If '-c' is given,  then 'gac' only compiles the input files to 
##  '.o' object files, which must be further linked to make a static kernel or
##  dynamically loadable module
##
##  If '-C is given, then 'gac' only compiles the input files to C code, which 
##  will require compilation and linking to be usable.
##
##  If '-r' is given, then statically compiled files will be assumed to be given
##  by pathnames relative to the GAP root, and will be compiled for automatic loading
##  when files are sought relative to the GAP root.
##
##  The option '-o <output>' tells 'gac' to name the output file <output>.
##
##  The option  '-ffast-int-arith' tells  'gac' to emit  code for  arithmetic
##  operations, which works faster if both  operands are  small integers  and
##  slower otherwise.
##
##  The option '-ffast-plain-lists' tells 'gac' to emit code for list access,
##  which works faster if the list is a plain list and slower otherwise.
##
##  The option '-ffast-list-funcs' tells 'gac' to inline  the functions 'Add'
##  and 'Length' the code, which makes it a bit faster.
##
##  The option '-fno-check-types' tells 'gac' to  emit  no  error checks  for
##  list access, which makes it faster but may dump core if an error happens.
#
##  The option '-p <option>' tells 'gac' to pass the option  <option> to  the
##  C compiler.
##
##  The option '-P <option>' tells 'gac' to pass the option  <option> to  the
##  C linker.
##
##  The option '-L <option>' tells 'gac' to pass the option  <option>
##  to the C linker when linking dynamic modules. Contrary to -P the
##  option is appended at the end of the link command after the .o
##  files to link.
##

gap_dir=/usr/lib/gap
gap_compiler="/usr/bin/gap -R";
gap_binary=/usr/lib/gap/bin;

gap_options=""
gap_include=""

stat_identifier="USER";

# These three should be filled in by the standard autoconf procedures 
c_compiler="x86_64-linux-gnu-gcc"
c_options="-g -Wall -O2 -Wall -g -O2  "
c_linker="x86_64-linux-gnu-gcc"
c_link_options=" -g  -export-dynamic"
c_libs="-lreadline -ldl -lutil  -lgmp"

# These three will need special care 
c_dyn_options="-fPIC -Wall -O2  "
c_dyn_linker="x86_64-linux-gnu-gcc"
c_dyn_linking="-shared -g "
c_dynlibs="-ldl"
c_addlibs=""

# hardwire this for now. There is probably a nicer way 

OBJECTS="\
    c_meths1.o  c_type1.o   c_oper1.o   c_filt1.o    c_random.o  \
    ariths.o    blister.o   bool.o      calls.o      code.o      \
    compiler.o  costab.o    cyclotom.o  dt.o         dteval.o    \
    exprs.o     finfield.o  funcs.o     gap.o        gasman.o    \
    gmpints.o   gvars.o     integer.o   intrprtr.o   listfunc.o  \
    listoper.o  lists.o     objcftl.o   objects.o    objfgelm.o  \
    objpcgel.o  objscoll.o  objccoll.o  opers.o      permutat.o  \
    plist.o     precord.o   range.o     rational.o   read.o      \
    records.o   saveload.o  scanner.o   sctable.o    set.o       \
    stats.o     streams.o   string.o    sysfiles.o   system.o    \
    tietze.o    vars.o      vecgf2.o    vecffe.o     vec8bit.o   \
    intfuncs.o                                                   \
    vector.o    weakptr.o   iostream.o  macfloat.o "

EXTOBJS=


#############################################################################
##
#F  gap_compile <output> <input> <module-name> <identifier>
##
gap_compile () {
    echo ${gap_compiler} ${gap_options} -C $1 $2 $3 $4
    ${gap_compiler} ${gap_options} -C "$1" "$2" "$3" "$4"
}


#############################################################################
##
#F  c_compile   <output> <input> <options>
##
c_compile () {
    echo ${c_compiler}  $3 -o $1 -I${gap_dir} \
         -DCONFIG_H -c $2
    ${c_compiler} $3 -o $1 -I${gap_dir} \
         -DCONFIG_H -c $2 || exit 1
}


#############################################################################
##
#F  c_link_dyn <output> <input>
##
c_link_dyn () {
    echo ${c_dyn_linker} ${c_dyn_linking} -o $1 $2 ${c_addlibs}
    ${c_dyn_linker} ${c_dyn_linking} -o $1 $2 ${c_addlibs} || exit 1
}


#############################################################################
##
#F  c_link <output> <inputs_o>
##
c_link () {
    echo ${c_linker} ${c_dynlibs}  -o $1 $2 ${c_link_options} -lm ${c_libs}
    ${c_linker} ${c_dynlibs} -o $1 $2 ${c_link_options} \
        -lm ${c_libs} || exit 1
}

#############################################################################
##
#F process_o_file <basename> <filename> 
##
## Compile according to comp_mode and comp_howfar
## 
## This does everything except the final link phase in the static case
## in that case it adds the basename and object file path of $names and $objects
##

process_o_file () {
  name=$1
  o_file=$2
  # just remember for the linking stage later
  names="${names} ${name}"
  objects="${objects} $o_file"
}

#############################################################################
##
#F process_c_file <basename> <filename> 
##
## Compile according to comp_mode and comp_howfar
## 
## This does everything except the final link phase in the static case
## in that case it adds the basename and object file path of $names and $objects
##

process_c_file () {
    name=$1
    c_file=$2
    extra_cflags=$3

    if [ $comp_howfar != "object" ]; then
       o_file=${gactmp}/$$_${name}.o
        temps_o="${temps_o} ${o_file}"
    elif [ "X$output" != "X" ]; then
       o_file=$output
    else 
       o_file=${name}.o
    fi
    if [ $comp_mode = "comp_static" ]; then
       c_compile_opts=$c_options
    else
       c_compile_opts=$c_dyn_options
    fi
    c_compile $o_file $c_file "$c_compile_opts $extra_cflags"
    if [ $comp_howfar = "link" ]; then
      process_o_file $name $o_file
    fi 
}

#############################################################################
##
#F process_gap_file <filename> <ext>
##
## Compile according to comp_mode and comp_howfar
## 
## This does everything except the final link phase in the static case
## in that case it adds the basename and object file path of $names and $objects
##

process_gap_file () {
  name=`basename $1 $2`

  if [ $comp_howfar != "c_code" ]; then
    c_file=${gactmp}/$$_${name}.c
    temps_c="${temps_c} $gap_compile_to"
  elif [ "X$output" = "X" ]; then
     c_file=${name}.c
  else
     c_file=$output
  fi
  gap_compile_in=$input
  gap_compile_name=$input  
  if [ $comp_mode = "comp_static" ]; then
    gap_compile_id=Init_${name}
    if [ $comp_static_root_relative = "yes" ]; then
	gap_compile_in=${gap_dir}/$input;
        gap_compile_name=GAPROOT/$input;
    fi
  else
    gap_compile_id=Init_Dynamic
  fi
  gap_compile $c_file ${gap_compile_in} $gap_compile_id ${gap_compile_name}
  if [ $comp_howfar != "c_code" ]; then
    process_c_file $name $c_file
    echo rm -f $c_file
    rm -f $c_file
  fi
}

#############################################################################
##
#F  clean_up
##
clean_up () {
    echo rm -f ${temps_c} ${temps_o}
    rm -f ${temps_c} ${temps_o}
}
trap "clean_up" 2 3


#############################################################################
##
##  parse the arguments
##
if [ $# = 0 ]; then
    echo "usage: $0 [-d|-r] [-c|-C] [-o <output>] [-l <gap_binary>] <input>..."
    exit 1
fi

comp_mode="comp_static"
comp_howfar="link"
comp_static_root_relative="no"
output=""
inputs=""

while [ $# -gt 0 ]; do
    case $1 in

    -c|--compile)         comp_howfar="object";;

    -d|--dynamic)         comp_mode="comp_dyna";;

    -C|--create-c)	  comp_howfar="c_code";;

    -o|--output)          shift; output="$1";;
  
    -r)                   comp_static_root_relative="yes";;

    -ffast-int-arith)     if [ "X${gap_options}" = "X" ]; then
                              gap_options="-U FAST_INT_ARITH"
                          else
                              gap_options="${gap_options},FAST_INT_ARITH"
                          fi;;

    -ffast-plain-lists)   if [ "X${gap_options}" = "X" ]; then
                              gap_options="-U FAST_PLAIN_LISTS"
                          else
                              gap_options="${gap_options},FAST_PLAIN_LISTS"
                          fi;;

    -ffast-list-funcs)   # echo "$0: option $1 is not currently allowed, ignoring it";;

			    
			   if [ "X${gap_options}" = "X" ]; then
                              gap_options="-U FAST_LIST_FUNCS"
                          else
                              gap_options="${gap_options},FAST_LIST_FUNCS"
                          fi;;

    -fno-check-types)     if [ "X${gap_options}" = "X" ]; then
                              gap_options="-U NO_CHECK_TYPES"
                          else
                              gap_options="${gap_options},NO_CHECK_TYPES"
                          fi;;

    -fno-check-list-elms) if [ "X${gap_options}" = "X" ]; then
                              gap_options="-U NO_CHECK_LIST_ELMS"
                          else
                              gap_options="${gap_options},NO_CHECK_LIST_ELMS"
                          fi;;

    -f*)                  echo "$0: no such option '$1'"
                          exit 1;;

    -k|--gap-compiler)    shift; gap_compiler="$1";;

    -i|--gap-include)     shift; gap_include="$1";;

    -l|--gap-binary)      shift; gap_binary="$1";;

    -p)                   shift; c_options="${c_options} $1" c_dyn_options="${c_dyn_options} $1";;

    -P)                   shift; c_link_options="${c_link_options} $1" c_dyn_linking="${c_dyn_linking} $1";;

    -L|--addlibs)         shift; c_addlibs="${c_addlibs} $1";;

    *.g|*.gap|*.gd|*.gi|*.c|*.cc|*.cpp|*.o)
                          inputs="${inputs} $1";;

    *)                    echo "$0: cannot handle this argument '$1'"
                          exit 1;;

    esac
    shift
done

if [ "X${inputs}" = "X" ]; then
    echo "$0: no input files given"
    exit 1
fi




#############################################################################
##
#F  make_compstat 
##

make_compstat () {
    # make 'compstat.c' and compile it
    temps_c="${temps_c} ${gactmp}/$$compstat.c"
    echo     "/* made by 'gac', can be thrown away */"   >  ${gactmp}/$$compstat.c
    echo     "#include \"src/compiled.h\" "                   >> ${gactmp}/$$compstat.c

    echo     "#ifndef AVOID_PRECOMPILED"                         >> ${gactmp}/$$compstat.c
    echo     "extern StructInitInfo * Init__methsel1 ( void );"  >> ${gactmp}/$$compstat.c
    echo     "extern StructInitInfo * Init__type1 ( void );"     >> ${gactmp}/$$compstat.c
    echo     "extern StructInitInfo * Init__filter1 ( void );"   >> ${gactmp}/$$compstat.c
    echo     "extern StructInitInfo * Init__oper1( void );"      >> ${gactmp}/$$compstat.c
    echo     "extern StructInitInfo * Init__random( void );"     >> ${gactmp}/$$compstat.c
    echo     "#endif"                                            >> ${gactmp}/$$compstat.c

    for name in ${names}; do
        echo "extern StructInitInfo * Init__${name} ( void );" \
						         >> ${gactmp}/$$compstat.c
    done

    echo     "InitInfoFunc CompInitFuncs [] = {"         >> ${gactmp}/$$compstat.c
    echo     "#ifndef AVOID_PRECOMPILED"                 >> ${gactmp}/$$compstat.c
    echo     "    Init__methsel1,"                       >> ${gactmp}/$$compstat.c
    echo     "    Init__type1,"                          >> ${gactmp}/$$compstat.c
    echo     "    Init__oper1,"                          >> ${gactmp}/$$compstat.c
    echo     "    Init__filter1,"                        >> ${gactmp}/$$compstat.c
    echo     "    Init__random,"                         >> ${gactmp}/$$compstat.c
    echo     "#endif"                                    >> ${gactmp}/$$compstat.c

    for name in ${names}; do
        echo "    Init__${name},"                        >> ${gactmp}/$$compstat.c
    done
    echo "    0"                                         >> ${gactmp}/$$compstat.c
    echo "};"                                            >> ${gactmp}/$$compstat.c
    temps_o="${gactmp}/$$compstat.o ${temps_o}"
    c_compile ${gactmp}/$$compstat.o ${gactmp}/$$compstat.c "${c_options}"
    echo rm -f ${gactmp}/$$compstat.c
    rm -f ${gactmp}/$$compstat.c
    objects="${gactmp}/$$compstat.o ${objects}"
}

#make_tmpdir () {
#    basetmp=${TMPDIR:-/tmp}; #honor the TMPDIR environment variable.
#    gactmp="$basetmp/gac$$";
#    mkdir "$gactmp" || exit 1;
#}
#
#On systems with mktemp(1) this function is better:
make_tmpdir ()
{
    gactmp=`mktemp -d -t "gacXXXXXXX"`;
}

#############################################################################
##
##  main loop
##

#Make temporary directory
make_tmpdir;

# loop over the input files
for input in ${inputs}; do
  case $input in

        *.g) process_gap_file $input .g;;
        *.gap) process_gap_file $input .gap;;
        *.gd) process_gap_file $input .gd;;
        *.gi) process_gap_file $input .gi;;

        *.c) # compile '.c' source files
            name=`basename ${input} .c`
            process_c_file $name $input;;

        *.cc) # compile '.cc' source files (C++)
            name=`basename ${input} .cc`
            process_c_file $name $input "-x c++";;

        *.cpp) # compile '.cpp' source files (also C++)
            name=`basename ${input} .cpp`
            process_c_file $name $input "-x c++";;

        *.o) # look over '.o' source files
            name=`basename ${input} .o`
	    process_o_file $name $input;;
        esac
    done


#  static link phase
if [ $comp_howfar = "link" ]; then
    if [ $comp_mode = "comp_static" ]; then
        make_compstat

        # link everything together
        if [ "X${output}" = "X" ]; then output="gacout"; fi

        for object in $OBJECTS;  do
            objects="${gap_binary}/${object} ${objects}"
        done
        for object in $EXTOBJS;  do
            objects="${gap_dir}/${object} ${objects}"
        done

        c_link ${output} "${objects}"

    else
        if [ "X${output}" = "X" ]; then output="${name}.so"; fi
        c_link_dyn ${output} "${objects}"
    fi
    
    echo rm -f ${temps_o}
    rm -f ${temps_o}
fi

#Remove temporary directory.
#We may assume it is empty at this stage.
rmdir "${gactmp}"