50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
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"""在编好的 .face 里定位每一份负载，好让 Lua 运行时按偏移从 resource.bin 里读出来
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（设备不会把 .face 里的 images/ 解包到文件系统，图片仍然躺在 resource.bin 里）。
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"""
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import os, sys, json
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from paths import PROJ, WORK
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FACE = os.path.join(WORK, 'build', 'S5Icons', 'bin', 'S5Icons.face')
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PDIR = os.path.join(PROJ, 'payload')
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RDIR = os.path.join(PROJ, 'payload_rollback')
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OUT = os.path.join(WORK, 'face_payload_offsets.json')
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face = open(FACE, 'rb').read()
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print(f'face {os.path.basename(FACE)} {len(face)} bytes')
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anchor = face.find(b'local lvgl = require("lvgl")')
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print(f'lua source starts at 0x{anchor:x} ({anchor})')
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out = {}
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for tag, d in (('payload', PDIR), ('rollback', RDIR)):
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recs = []
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dup = 0
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for name in sorted(os.listdir(d)):
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if not name.endswith('.bin') or name.endswith('payload.lua'):
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continue
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data = open(os.path.join(d, name), 'rb').read()
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if not data:
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continue
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hits, start = [], 0
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while True:
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i = face.find(data, start)
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if i < 0:
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break
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hits.append(i)
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start = i + 1
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if len(hits) > 8:
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break
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recs.append((name, len(data), hits, data[:16].hex()))
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if len(hits) != 1:
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dup += 1
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out[tag] = recs
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print(f'\n{tag}: {len(recs)} files, {dup} with !=1 occurrence')
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for name, ln, hits, sig in recs[:6]:
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print(f' {name:<34} {ln:>7} hits={[hex(h) for h in hits]}')
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if recs:
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print(' ...')
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json.dump({k: [(n, l, h, s) for n, l, h, s in v] for k, v in out.items()},
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open(OUT, 'w', encoding='utf-8'), indent=1)
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print('\nsaved', OUT)
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