From 5ff54a875642962fc857cee00bde17f9a465f1fa Mon Sep 17 00:00:00 2001
From: Bradley Morgan <brads@mainlining.org>
Date: Sun, 4 Oct 2026 10:42:10 +0000
Subject: tashaboot: arm64 bootloader

holy shit it's here, Tashaboot, based from arm arm, enjoy
reading this masterpiece

Signed-off-by: Bradley Morgan <brads@mainlining.org>
---
 tools/fillsize.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 tools/fillsize.py

(limited to 'tools/fillsize.py')

diff --git a/tools/fillsize.py b/tools/fillsize.py
new file mode 100644
index 0000000..fa472d1
--- /dev/null
+++ b/tools/fillsize.py
@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+# fillsize.py - stamp image_size into the arm64 Image header of a
+# built binary. the linker cannot know the final file size, the
+# header field stays 0 through the link, this runs after objcopy.
+import struct
+import sys
+
+path = sys.argv[1]
+d = bytearray(open(path, 'rb').read())
+assert d[0x38:0x3c] == b'ARM\x64', 'no Image magic, refusing to stamp'
+struct.pack_into('<Q', d, 0x10, len(d))
+open(path, 'wb').write(d)
+print('image_size %d stamped' % len(d))
-- 
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