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authorBaruch Siach <[email protected]>2022-07-29 04:40:16 +0100
committerRussell King (Oracle) <[email protected]>2022-08-30 11:02:43 +0100
commitee50036b25be62e4abbac46665f410b887b66130 (patch)
treec8ecf2c0eb4543539958497eae0ef5dcdae2e98c /tools/perf/scripts/python/export-to-sqlite.py
parentb90cb1053190353cc30f0fef0ef1f378ccc063c5 (diff)
ARM: 9221/1: traps: print un-hashed user pc on undefined instruction
When user undefined instruction debug is enabled pc value is hashed like kernel pointers for security reason. But the security benefit of this hash is very limited because the code goes on to call __show_regs() that prints the plain pointer value. pc is a user pointer anyway, so the kernel does not leak anything. The only result is confusion about the difference between the pc value on the first printed line, and the value that __show_regs() prints. Always print the plain value of pc. Signed-off-by: Baruch Siach <[email protected]> Signed-off-by: Russell King (Oracle) <[email protected]>
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