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version_check_feature() added to check for compile-time options at run-time

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Paul Bakker 2014-04-30 11:49:44 +02:00
parent 8394684dd3
commit 0f90d7d2b5
11 changed files with 726 additions and 4 deletions
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57
scripts/generate_features.pl Executable file
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@ -0,0 +1,57 @@
#!/usr/bin/perl
#
use strict;
my $include_dir = shift or die "Missing include directory";
my $data_dir = shift or die "Missing data directory";
my $feature_file = shift or die "Missing destination file";
my $feature_format_file = $data_dir.'/version_features.fmt';
my @sections = ( "System support", "PolarSSL modules",
"PolarSSL feature support" );
my $line_separator = $/;
undef $/;
open(FORMAT_FILE, "$feature_format_file") or die "Opening feature format file '$feature_format_file': $!";
my $feature_format = <FORMAT_FILE>;
close(FORMAT_FILE);
$/ = $line_separator;
open(CONFIG_H, "$include_dir/config.h") || die("Failure when opening config.h: $!");
my $feature_defines = "";
my $in_section = 0;
while (my $line = <CONFIG_H>)
{
next if ($in_section && $line !~ /#define/ && $line !~ /SECTION/);
next if (!$in_section && $line !~ /SECTION/);
if ($in_section) {
if ($line =~ /SECTION/) {
$in_section = 0;
next;
}
my ($define) = $line =~ /#define (\w+)/;
$feature_defines .= "#if defined(${define})\n";
$feature_defines .= " \"${define}\",\n";
$feature_defines .= "#endif /* ${define} */\n";
}
if (!$in_section) {
my ($section_name) = $line =~ /SECTION: ([\w ]+)/;
my $found_section = grep $_ eq $section_name, @sections;
$in_section = 1 if ($found_section);
}
};
$feature_format =~ s/FEATURE_DEFINES\n/$feature_defines/g;
open(ERROR_FILE, ">$feature_file") or die "Opening destination file '$feature_file': $!";
print ERROR_FILE $feature_format;
close(ERROR_FILE);