feat: make userspace StatusCodes positive; print status text along with code in shell exec; make init return BadInvocation on faulty launch

scripts/montauk-syscalls.py

@@ -4,7 +4,6 @@
 #
 # Source of truth : programs/include/Api/Syscall.hpp  (montauk::abi::SYS_*)
 #                   kernel/src/Common/StatusCodes.hpp (enum StatusCodes)
-# Mirrors         : programs/include/montauk/statuscodes.h (must match exactly)
 # Generated blocks: programs/include/libc/montauk.h   (#define MTK_SYS_*,
 #                                                      #define MTK_STATUS_*)
 #
@@ -16,13 +15,11 @@
 #
 # Usage:
 #   montauk-syscalls.py check    Verify every SYS_* has a matching MTK_SYS_* with
-#                                the same number, and that both status code
-#                                mirrors match the kernel enum. Exits non-zero on
-#                                any drift. Run from the build so stale headers
-#                                fail loudly.
+#                                the same number, and that MTK_STATUS_* matches
+#                                the kernel enum. Exits non-zero on any drift.
+#                                Run from the build so stale headers fail loudly.
 #   montauk-syscalls.py gen      Rewrite the MTK_SYS_* and MTK_STATUS_* blocks in
 #                                montauk.h (numbers only; wrappers untouched).
-#                                statuscodes.h is not generated; fix it by hand.
 
 import os
 import re
@@ -33,7 +30,6 @@ REPO_ROOT = os.path.dirname(SCRIPT_DIR)
 ABI_HDR = os.path.join(REPO_ROOT, "programs/include/Api/Syscall.hpp")
 C_HDR = os.path.join(REPO_ROOT, "programs/include/libc/montauk.h")
 STATUS_HDR = os.path.join(REPO_ROOT, "kernel/src/Common/StatusCodes.hpp")
-STATUS_MIRROR = os.path.join(REPO_ROOT, "programs/include/montauk/statuscodes.h")
 
 BEGIN_MARKER = "/* @SYSCALLS-BEGIN"
 END_MARKER = "/* @SYSCALLS-END */"
@@ -91,16 +87,9 @@ def status_macro(name):
 
 
 def check_status(c_text):
-    """Print drift between the kernel enum and its two mirrors; return count."""
+    """Print drift between the kernel enum and MTK_STATUS_*; return count."""
     canon = parse_status(STATUS_HDR)
     problems = 0
-    mirror = parse_status(STATUS_MIRROR)
-    if mirror != canon:
-        problems += 1
-        print("montauk-syscalls: DRIFT between Common/StatusCodes.hpp and "
-              "montauk/statuscodes.h", file=sys.stderr)
-        print("  kernel: %s" % canon, file=sys.stderr)
-        print("  mirror: %s" % mirror, file=sys.stderr)
     want = {status_macro(n): v for n, v in canon}
     have = {n: int(v) for n, v in STATUS_DEF_RE.findall(c_text)}
     if want != have:
@@ -132,8 +121,8 @@ def cmd_check():
     status_problems = check_status(c_text)
     if not (missing or mismatched or extra):
         if status_problems:
-            print("\n  Run 'make gen-syscalls' to regenerate MTK_STATUS_*; "
-                  "montauk/statuscodes.h is fixed by hand.", file=sys.stderr)
+            print("\n  Run 'make gen-syscalls' to regenerate MTK_STATUS_*.",
+                  file=sys.stderr)
             return 1
         print("montauk-syscalls: OK (%d syscalls, %d status codes in sync)"
               % (len(abi), len(parse_status(STATUS_HDR))))