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#!/usr/bin/perl
#
# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
# University Research and Technology
# Corporation. All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
# University of Stuttgart. All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
# All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
#this is the perl scripty foo which does the following tasks
# 1. Extract the #include <*.h> files which are present in both header and source files
# 2. Do some basic formatting
# 3. Check if these included files are present on the platform which has been given
if (scalar(@ARGV) != 2) {
print "Usage:
./depend.pl <compiler-name>\n";
exit(3);
}
$includes_file = "headers.txt";
$return = &get_header_files($includes_file);
$test_file = "test_headers.txt";
$return = &parse_header_files($includes_file, $test_file);
$source_tree = @ARGV[0];
$CC = @ARGV[1];
$result_file = "results.txt";
$return = &test_for_headers($test_file, $result_file, $CC);
# this file is used to extract which header files are included in a particular
# source file. Kind of a neat implementation
sub get_header_files {
local($dump_file) = @_;
open(C_FILES, "find $source_tree -name \*.c |") || print "could not find source files\n";
open(H_FILES, "find $source_tree -name \*.c |") || print "could not find header files\n";
open(DUMP, "> $dump_file") || print "Could not open $dump_file\n";
while (<C_FILES>) {
$file_h = $_;
print DUMP "Processing $file_h";
open(FILE_H, "$file_h") || print "could not open file for reading\n";
#grep for the pattern which we want
while (<FILE_H>) {
if (/#include </) {
print DUMP $_, "\n";
}
}
print DUMP "=============================================================================\n"
}
while (<H_FILES>) {
$file_h = $_;
print DUMP "Processing $file_h";
open(FILE_H, "$file_h") || print "could not open file for reading\n";
#grep for the pattern which we want
while (<FILE_H>) {
if (/#include </) {
print DUMP $_, "\n";
}
}
print DUMP "=============================================================================\n"
}
close (C_FILES);
close (H_FILES);
close (DUMP);
return 0;
}
#this simply constructs the header file list from dump and dump_pl and then checks whether all the
#header files are present
sub parse_header_files {
local($includes_file, $test_file) = @_;
open(SOURCE,"$includes_file") || print "Could not open $includes_file for reading\n";
open(DUMP,"> $test_file") || print "Could not open $test_file for reading\n";
while (<SOURCE>) {
if (/#include </){
print DUMP $_;
}
}
close(SOURCE);
close(DUMP);
#remove all the unnecessary comments from headers.txt
open (HEADER, "$test_file") || print "Could not open $test_file for reading\n";
open(TEMP, "> temp.txt") || print "Could not open temp.txt for writing\n";
while(<HEADER>) {
#remove leading white spaces
s/^\s*//;
#remove anything after <*.h>
s/>{1,1}.*\n/>\n/;
#remove anything before #include
s/^.*#include/#include/;
print TEMP $_;
}
close(HEADER);
close(TEMP);
#remove duplicate occurences of the file
system("sort temp.txt | uniq > $test_file");
return 0;
}
#this suroutine is used to test if a particular header is present or absent in a particular language
sub test_for_headers {
local($test_file, $result_file, $CC) = @_;
local($temp) = "temp.c";
print "CC = $CC\n";
open(HEADER, "$test_file") || print "Could not open $test_file for reading\n";
open(RESULTS, "> $result_file") || print "Could not open $result_file for writing\n";
while(<HEADER>) {
print $_;
#create the file for compilation
chomp $_;
$string = "
$_ /*this is the include file to be tested for*/
int main(int argc, char **argv) {
return 0;
}
";
open(TEMP, "> $temp") || print "Could not open $temp for writing\n";
print TEMP $string;
close(TEMP);
$compiled = system("$CC $temp");
if ($compiled == 0) {
print "$_ is present\n";
} else {
print RESULTS "$_\n";
}
system("rm -Rf $temp");
system("rm -Rf temp.*");
}
close(HEADER);
close(RESULTS);
return 0;
}
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