stage0

stage0/spl_syscall.h

@@ -0,0 +1,22 @@
+/* spl_syscall.h — built-in syscall layer for SIR VM
+ *
+ * Provides I/O native functions (putchar, getchar, file ops, etc.)
+ * that compiled SPL programs can call via NCALL.
+ *
+ * spl_syscall_register() must be called AFTER spl_prog_load_from_file()
+ * and BEFORE spl_vm_run_until().  It matches native declarations in the
+ * loaded program against known syscall names and hooks up the C
+ * implementations.
+ */
+
+#ifndef __SPL_SYSCALL_H__
+#define __SPL_SYSCALL_H__
+
+#include "spl_ir.h"
+
+/* Register all known built-in syscalls into prog->natives[].
+ * Entries whose name matches a known syscall get their impl_fn set;
+ * unmatched entries remain NULL (will error at runtime if called). */
+void spl_syscall_register(spl_prog_t *prog);
+
+#endif /* __SPL_SYSCALL_H__ */