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<?php
function echoln($str) {
echo $str;
echo "\n";
}
function usage($reason) {
echoln("Usage: php build-nix.php [flags]");
echoln("Flags in parantheses are optional");
echoln("");
echoln(" --bits=[32,64]");
echoln(" --function=[curve25519,ed25519]");
echoln(" (--compiler=[*gcc,clang,icc]) which compiler to use, gcc is default");
echoln(" (--with-openssl) use openssl for SHA512");
echoln(" (--with-sse2) additionally fuzz against SSE2");
echoln(" (--no-asm) don't use platform specific asm");
echoln("");
if ($reason)
echoln($reason);
}
function cleanup() {
system("rm -f *.o");
}
function runcmd($desc, $cmd) {
echoln($desc);
$ret = 0;
system($cmd, $ret);
if ($ret) {
cleanup();
exit;
}
}
class argument {
var $set, $value;
}
class multiargument extends argument {
function multiargument($flag, $legal_values) {
global $argc, $argv;
$this->set = false;
$map = array();
foreach($legal_values as $value)
$map[$value] = true;
for ($i = 1; $i < $argc; $i++) {
if (!preg_match("!--".$flag."=(.*)!", $argv[$i], $m))
continue;
if (isset($map[$m[1]])) {
$this->value = $m[1];
$this->set = true;
return;
} else {
usage("{$m[1]} is not a valid parameter to --{$flag}!");
exit(1);
}
}
}
}
class flag extends argument {
function flag($flag) {
global $argc, $argv;
$this->set = false;
$flag = "--{$flag}";
for ($i = 1; $i < $argc; $i++) {
if ($argv[$i] !== $flag)
continue;
$this->value = true;
$this->set = true;
return;
}
}
}
$bits = new multiargument("bits", array("32", "64"));
$function = new multiargument("function", array("curve25519", "ed25519"));
$compiler = new multiargument("compiler", array("gcc", "clang", "icc"));
$with_sse2 = new flag("with-sse2");
$with_openssl = new flag("with-openssl");
$no_asm = new flag("no-asm");
$err = "";
if (!$bits->set)
$err .= "--bits not set\n";
if (!$function->set)
$err .= "--function not set\n";
if ($err !== "") {
usage($err);
exit;
}
$compile = ($compiler->set) ? $compiler->value : "gcc";
$link = "";
$flags = "-O3 -m{$bits->value}";
$ret = 0;
if ($with_openssl->set) $link .= " -lssl -lcrypto";
if (!$with_openssl->set) $flags .= " -DED25519_REFHASH -DED25519_TEST";
if ($no_asm->set) $flags .= " -DED25519_NO_INLINE_ASM";
if ($function->value === "curve25519") {
runcmd("building ref10..", "{$compile} {$flags} curve25519-ref10.c -c -o curve25519-ref10.o");
runcmd("building ed25519..", "{$compile} {$flags} ed25519-donna.c -c -o ed25519.o");
if ($with_sse2->set) {
runcmd("building ed25519-sse2..", "{$compile} {$flags} ed25519-donna-sse2.c -c -o ed25519-sse2.o -msse2");
$flags .= " -DED25519_SSE2";
$link .= " ed25519-sse2.o";
}
runcmd("linking..", "{$compile} {$flags} {$link} fuzz-curve25519.c ed25519.o curve25519-ref10.o -o fuzz-curve25519");
echoln("fuzz-curve25519 built.");
} else if ($function->value === "ed25519") {
runcmd("building ref10..", "{$compile} {$flags} ed25519-ref10.c -c -o ed25519-ref10.o");
runcmd("building ed25519..", "{$compile} {$flags} ed25519-donna.c -c -o ed25519.o");
if ($with_sse2->set) {
runcmd("building ed25519-sse2..", "{$compile} {$flags} ed25519-donna-sse2.c -c -o ed25519-sse2.o -msse2");
$flags .= " -DED25519_SSE2";
$link .= " ed25519-sse2.o";
}
runcmd("linking..", "{$compile} {$flags} {$link} fuzz-ed25519.c ed25519.o ed25519-ref10.o -o fuzz-ed25519");
echoln("fuzz-ed25519 built.");
}
cleanup();
?>
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