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tools/check: Fix adrp_pair_registers not being updated for identical instructions

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Léo Lam 2020-11-01 16:57:58 +01:00
parent d0deedac4c
commit 41cd5cceea
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3 changed files with 14 additions and 0 deletions
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14
tools/check.py
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@ -54,6 +54,20 @@ def check_function_ex(addr: int, size: int, base_fn: bytes, my_fn: bytes) -> boo
for i1, i2 in zip(md.disasm(base_fn, addr), md.disasm(my_fn, addr)):
if i1.bytes == i2.bytes:
if i1.mnemonic == 'adrp':
adrp_pair_registers.add(i1.operands[0].reg)
elif i1.mnemonic == 'ldr':
reg = i1.operands[1].value.mem.base
if reg in adrp_pair_registers:
adrp_pair_registers.remove(reg)
elif i1.mnemonic == 'ldp':
reg = i1.operands[2].value.mem.base
if reg in adrp_pair_registers:
adrp_pair_registers.remove(reg)
elif i1.mnemonic == 'add':
reg = i1.operands[1].reg
if reg in adrp_pair_registers:
adrp_pair_registers.remove(reg)
continue
if i1.mnemonic != i2.mnemonic: