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23 lines
547 B
23 lines
547 B
4 months ago
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#ifndef NT_ARM_SYSTEM_CALL
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# define NT_ARM_SYSTEM_CALL 0x404
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#endif
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/*
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* NT_ARM_SYSTEM_CALL regset is supported by linux kernel
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* starting with commit v3.19-rc1~59^2~16.
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*/
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static int
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arch_set_scno(struct tcb *tcp, kernel_ulong_t scno)
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{
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unsigned int n = (uint16_t) scno;
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const struct iovec io = {
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.iov_base = &n,
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.iov_len = sizeof(n)
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};
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int rc = ptrace(PTRACE_SETREGSET, tcp->pid, NT_ARM_SYSTEM_CALL, &io);
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if (rc && errno != ESRCH)
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perror_msg("arch_set_scno: NT_ARM_SYSTEM_CALL pid:%d scno:%#x",
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tcp->pid, n);
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return rc;
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}
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