Messages in this thread | | | From | Lecopzer Chen <> | Subject | Re: [PATCH] ARM: ptrace: fix scno of -1 cause SIGILL | Date | Mon, 7 Aug 2023 15:53:09 +0800 |
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> In commit [1], the -1 scno is used as a special scno when the task's > syscall is traced.
> After commit [2], PTRACE_SET_SYSCALL will always mask syscall with > __NR_SYSCALL_MASK, this makes the condition `cmp scno, #-1` broken, > and some test like Android VTS[3] is also failed because SIGILL > interrupt the test program.
> Let's test with `and` logic with #0x0ff000. Instead of #__NR_SYSCALL_MASK > because of the constraint of ARM Operand2 rules and avoid conflicting > with ARM private syscall.
...
Please follow the commit from Kees below and ignore this patch, thanks.
https://lore.kernel.org/all/20230804071045.never.134-kees@kernel.org/
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