init commit

src/internal/libc.c

@@ -0,0 +1,23 @@
+#include "libc.h"
+
+/* Initial memory pool — small bump arena for early development.
+ * When the PM-actor path is wired this will request memory via
+ * elyz_kcall with ELYZ_OP_ALLOCATE.
+ */
+#define EARLY_HEAP_SIZE (64UL * 1024 * 1024)
+static unsigned char __early_heap[EARLY_HEAP_SIZE];
+
+struct __libc __libc = {
+    .heap_base = (unsigned long)__early_heap,
+    .heap_size = EARLY_HEAP_SIZE,
+    .heap_used = 0,
+    .threaded  = 0,
+    .progname  = 0,
+};
+
+int __errno = 0;
+
+void __libc_init(void)
+{
+    /* Future: read startup_info from loader, wire capabilities */
+}