fix: inherit process environment and untrack libc objects

programs/lib/libc/crt/crt1.c

@@ -34,8 +34,10 @@ static inline long _sys2(long nr, long a1, long a2) {
 #define SYS_EXIT        0
 #define SYS_GETARGS     25
 #define SYS_GETEXECPATH 151
+#define SYS_GETENVIRON 171
 
 extern int main(int argc, char** argv);
+extern void __libc_init_environ(const char *blob, unsigned long len);
 
 /* Global constructor/destructor tables. The linker provides these
    boundary symbols whenever .preinit_array/.init_array/.fini_array
@@ -72,9 +74,13 @@ static void _run_fini_array(void) {
 void _start(void) {
     /* Static: 4 KiB args + 256 argv slots would crowd a 32 KiB stack. */
     static char argbuf[4096];
+    static char envbuf[4096];
     static char pathbuf[256];
     static char* argv[256];
     int len = (int)_sys2(SYS_GETARGS, (long)argbuf, (long)sizeof(argbuf));
+    int envlen = (int)_sys2(SYS_GETENVIRON, (long)envbuf, (long)sizeof(envbuf));
+    if (envlen > 0)
+        __libc_init_environ(envbuf, (unsigned long)envlen);
 
     int argc = 0;