Files
epics-base/modules/libcom/RTEMS/epicsMakeMemFs.pl
2018-10-26 17:04:53 -05:00

84 lines
1.4 KiB
Perl

#!/usr/bin/env perl
#
use File::Basename;
use strict;
my $outfile = shift;
my $varname = shift;
open(my $DST, '>', $outfile) or die "Failed to open $outfile";
print $DST <<EOF;
#include <epicsMemFs.h>
EOF
my $N = 0;
for my $fname (@ARGV) {
print "<- $fname\n";
my $realfname = $fname;
# strip leading "../" "./" or "/"
while ($fname =~ /^\.*\/(.*)$/) { $fname = $1; }
my $file = basename($fname);
my @dirs = split('/', dirname($fname));
print $DST "/* begin $realfname */\nstatic const char * const file_${N}_dir[] = {";
for my $dpart (@dirs) {
print $DST "\"$dpart\", ";
}
print $DST "NULL};\nstatic const char file_${N}_data[] = {\n ";
open(my $SRC, '<', $realfname) or die "Failed to open $realfname";
binmode($SRC);
my $buf;
my $total = 0;
while (my $num = read($SRC, $buf, 32)) {
if($total != 0) {
print $DST ",\n ";
}
$total += $num;
my $out = join(",",map(ord,split(//,$buf)));
print $DST "$out";
}
close($SRC);
print $DST <<EOF;
};
static const epicsMemFile file_${N} = {
file_${N}_dir,
\"$file\",
file_${N}_data,
$total
};
/* end $realfname */
EOF
$N = $N + 1;
}
print $DST <<EOF;
static const epicsMemFile* files[] = {
EOF
$N = $N - 1;
for my $i (0..${N}) {
print $DST " &file_${i},";
}
print $DST <<EOF;
NULL
};
static
const epicsMemFS ${varname}_image = {&files[0]};
const epicsMemFS * $varname = &${varname}_image;
EOF
close($DST);