v3 base

src/StaticPHP/Runtime/SystemTarget.php

@@ -0,0 +1,132 @@
+<?php
+
+declare(strict_types=1);
+
+namespace StaticPHP\Runtime;
+
+use StaticPHP\Util\System\LinuxUtil;
+
+/**
+ * Originally from SPCTarget, used to offer some build-time information about the target.
+ */
+class SystemTarget
+{
+    /**
+     * Returns the libc type if set, for other OS, it will always return null.
+     */
+    public static function getLibc(): ?string
+    {
+        if ($target = getenv('SPC_TARGET')) {
+            if (str_contains($target, '-gnu')) {
+                return 'glibc';
+            }
+            if (str_contains($target, '-musl')) {
+                return 'musl';
+            }
+            if (PHP_OS_FAMILY === 'Linux') {
+                return LinuxUtil::isMuslDist() ? 'musl' : 'glibc';
+            }
+        }
+        $libc = getenv('SPC_LIBC');
+        if ($libc !== false) {
+            return $libc;
+        }
+        if (PHP_OS_FAMILY === 'Linux') {
+            return LinuxUtil::isMuslDist() ? 'musl' : 'glibc';
+        }
+        return null;
+    }
+
+    /**
+     * Get system runtime libraries linker flags.
+     */
+    public static function getRuntimeLibs(): string
+    {
+        if (PHP_OS_FAMILY === 'Linux') {
+            return self::getLibc() === 'musl' ? '-ldl -lpthread -lm' : '-ldl -lrt -lpthread -lm -lresolv -lutil';
+        }
+        if (PHP_OS_FAMILY === 'Darwin') {
+            return '-lresolv';
+        }
+        return '';
+    }
+
+    /**
+     * Returns the libc version if set, for other OS, it will always return null.
+     */
+    public static function getLibcVersion(): ?string
+    {
+        if (PHP_OS_FAMILY === 'Linux') {
+            $target = (string) getenv('SPC_TARGET');
+            if (str_contains($target, '-gnu.2.')) {
+                return preg_match('/-gnu\.(2\.\d+)/', $target, $matches) ? $matches[1] : null;
+            }
+            $libc = self::getLibc();
+            return LinuxUtil::getLibcVersionIfExists($libc);
+        }
+        return null;
+    }
+
+    /**
+     * Returns the target OS family, e.g. Linux, Darwin, Windows, BSD.
+     * Currently, we only support native building.
+     *
+     * @return 'BSD'|'Darwin'|'Linux'|'Windows'
+     */
+    public static function getTargetOS(): string
+    {
+        $target = (string) getenv('SPC_TARGET');
+        return match (true) {
+            str_contains($target, '-linux') => 'Linux',
+            str_contains($target, '-macos') => 'Darwin',
+            str_contains($target, '-windows') => 'Windows',
+            str_contains($target, '-native') => PHP_OS_FAMILY,
+            default => PHP_OS_FAMILY,
+        };
+    }
+
+    /**
+     * Returns the target architecture, e.g. x86_64, aarch64.
+     * Currently, we only support 'x86_64' and 'aarch64' and both can only be built natively.
+     *
+     * @return 'aarch64'|'x86_64'
+     */
+    public static function getTargetArch(): string
+    {
+        $target = (string) getenv('SPC_TARGET');
+        return match (true) {
+            str_contains($target, 'x86_64') || str_contains($target, 'amd64') => 'x86_64',
+            str_contains($target, 'aarch64') || str_contains($target, 'arm64') => 'aarch64',
+            // str_contains($target, 'armv7') || str_contains($target, 'armhf') => 'armv7',
+            // str_contains($target, 'armv6') || str_contains($target, 'armel') => 'armv6',
+            // str_contains($target, 'i386') || str_contains($target, 'i686') => 'i386',
+            default => GNU_ARCH,
+        };
+    }
+
+    /**
+     * Get the current platform string in the format of {os}-{arch}, e.g. linux-x86_64.
+     */
+    public static function getCurrentPlatformString(): string
+    {
+        $os = match (self::getTargetOS()) {
+            'Darwin' => 'macos',
+            'Linux' => 'linux',
+            'Windows' => 'windows',
+            default => 'unknown',
+        };
+        $arch = self::getTargetArch();
+        if (getenv('EMULATE_PLATFORM') !== false) {
+            return getenv('EMULATE_PLATFORM');
+        }
+        return "{$os}-{$arch}";
+    }
+
+    /**
+     * Check if the target OS is a Unix-like system.
+     */
+    public static function isUnix(): bool
+    {
+        return in_array(self::getTargetOS(), ['Linux', 'Darwin', 'BSD']);
+    }
+}