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build frankenphp and embed after shared extensions, make sure the linker doesn't drop libphp.a symbols that extensions need

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This commit is contained in:
DubbleClick 2025-08-29 08:45:58 +07:00
parent 5a30d509e7
commit 460eb02086
5 changed files with 98 additions and 9 deletions
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5
src/SPC/builder/freebsd/BSDBuilder.php
View File

@ -122,6 +122,11 @@ class BSDBuilder extends UnixBuilderBase
}
$this->buildEmbed();
}
$shared_extensions = array_map('trim', array_filter(explode(',', $this->getOption('build-shared'))));
if (!empty($shared_extensions)) {
logger()->info('Building shared extensions ...');
$this->buildSharedExts();
}
if ($enableFrankenphp) {
logger()->info('building frankenphp');
$this->buildFrankenphp();

6
src/SPC/builder/linux/LinuxBuilder.php
View File

@ -142,6 +142,12 @@ class LinuxBuilder extends UnixBuilderBase
}
$this->buildEmbed();
}
// build dynamic extensions if needed, must happen before building FrankenPHP to make sure we export all necessary, undefined symbols
$shared_extensions = array_map('trim', array_filter(explode(',', $this->getOption('build-shared'))));
if (!empty($shared_extensions)) {
logger()->info('Building shared extensions ...');
$this->buildSharedExts();
}
if ($enableFrankenphp) {
logger()->info('building frankenphp');
$this->buildFrankenphp();

5
src/SPC/builder/macos/MacOSBuilder.php
View File

@ -156,6 +156,11 @@ class MacOSBuilder extends UnixBuilderBase
}
$this->buildEmbed();
}
$shared_extensions = array_map('trim', array_filter(explode(',', $this->getOption('build-shared'))));
if (!empty($shared_extensions)) {
logger()->info('Building shared extensions ...');
$this->buildSharedExts();
}
if ($enableFrankenphp) {
logger()->info('building frankenphp');
$this->buildFrankenphp();

85
src/SPC/builder/unix/UnixBuilderBase.php
View File

@ -31,6 +31,63 @@ abstract class UnixBuilderBase extends BuilderBase
/** @var string LD flags */
public string $arch_ld_flags;
private static array $undefined_symbols = [];
public static function getUndefinedSymbols(): array
{
if (count(self::$undefined_symbols)) {
return self::$undefined_symbols;
}
$undefined = [];
$addSymbolsFromString = function (string $out, &$list) {
foreach (preg_split('/\R/', trim($out)) as $line) {
if ($line === '') {
continue;
}
$name = strtok($line, " \t");
if (!$name) {
continue;
}
$name = preg_replace('/@.*$/', '', $name);
if ($name !== '' && $name !== false) {
$list[$name] = true;
}
}
};
// collect undefined symbols from shared extensions
$files = glob(rtrim(BUILD_MODULES_PATH, '/') . DIRECTORY_SEPARATOR . '*.so') ?: [];
foreach ($files as $so) {
$cmd = 'nm -D --undefined-only -P ' . escapeshellarg($so) . ' 2>/dev/null';
$out = shell_exec($cmd);
if ($out !== '') {
$addSymbolsFromString($out, $undefined);
}
}
// keep only symbols defined in libphp.a
$defined = [];
$libphp = BUILD_LIB_PATH . '/libphp.a';
if (!is_file($libphp)) {
throw new WrongUsageException('You must build libphp.a statically before calling this function.');
}
$cmd = 'nm -g --defined-only -P ' . escapeshellarg($libphp) . ' 2>/dev/null';
$out = shell_exec($cmd) ?: '';
if ($out !== '') {
$addSymbolsFromString($out, $defined);
}
// intersect: only undefined symbols that libphp.a actually defines
$keys = array_intersect_key($undefined, $defined);
$list = array_keys($keys);
sort($list, SORT_STRING);
self::$undefined_symbols = $list;
return $list;
}
public function proveLibs(array $sorted_libraries): void
{
// search all supported libs
@ -137,6 +194,7 @@ abstract class UnixBuilderBase extends BuilderBase
if (SPCTarget::isStatic()) {
$lens .= ' -static';
}
$dynamic_exports = '';
// if someone changed to EMBED_TYPE=shared, we need to add LD_LIBRARY_PATH
if (getenv('SPC_CMD_VAR_PHP_EMBED_TYPE') === 'shared') {
if (PHP_OS_FAMILY === 'Darwin') {
@ -151,8 +209,17 @@ abstract class UnixBuilderBase extends BuilderBase
foreach (glob(BUILD_LIB_PATH . "/libphp*.{$suffix}") as $file) {
unlink($file);
}
$symbols = self::getUndefinedSymbols(); // returns unique, version-stripped names
// turn list into many --export-dynamic-symbol=... flags
$dynamic_exports = implode(
' ',
array_map(
static fn (string $s) => '-Wl,--export-dynamic-symbol=' . escapeshellarg($s),
$symbols
)
);
}
[$ret, $out] = shell()->cd($sample_file_path)->execWithResult(getenv('CC') . ' -o embed embed.c ' . $lens);
[$ret, $out] = shell()->cd($sample_file_path)->execWithResult(getenv('CC') . ' -o embed embed.c ' . $lens . ' ' . $dynamic_exports);
if ($ret !== 0) {
throw new ValidationException(
'embed failed sanity check: build failed. Error message: ' . implode("\n", $out),
@ -271,11 +338,23 @@ abstract class UnixBuilderBase extends BuilderBase
$libphpVersion = preg_replace('/\.\d$/', '', $libphpVersion);
}
$debugFlags = $this->getOption('no-strip') ? '-w -s ' : '';
$extLdFlags = "-extldflags '-pie'";
$dynamic_exports = '';
if (getenv('SPC_CMD_VAR_PHP_EMBED_TYPE') === 'static') {
$symbols = self::getUndefinedSymbols(); // returns unique, version-stripped names
// turn list into many --export-dynamic-symbol=... flags
$dynamic_exports = ' ' . implode(
' ',
array_map(
static fn (string $s) => '-Wl,--export-dynamic-symbol="' . $s . '"',
$symbols
)
);
}
$extLdFlags = "-extldflags '-pie{$dynamic_exports}'";
$muslTags = '';
$staticFlags = '';
if (SPCTarget::isStatic()) {
$extLdFlags = "-extldflags '-static-pie -Wl,-z,stack-size=0x80000'";
$extLdFlags = "-extldflags '-static-pie -Wl,-z,stack-size=0x80000{$dynamic_exports}'";
$muslTags = 'static_build,';
$staticFlags = '-static-pie';
}

6
src/SPC/command/BuildPHPCommand.php
View File

@ -211,12 +211,6 @@ class BuildPHPCommand extends BuildCommand
// start to build
$builder->buildPHP($rule);
// build dynamic extensions if needed
if (!empty($shared_extensions)) {
logger()->info('Building shared extensions ...');
$builder->buildSharedExts();
}
$builder->testPHP($rule);
// compile stopwatch :P