Stefan Liebler 2c80445787 S390: Fix tst-ptrace-singleblock if kernel does not support PTRACE_SINGLEBLOCK. ... The request PTRACE_SINGLEBLOCK was introduced in Linux 3.15. Thus the ptrace call will fail on older kernels. Thus the test is now testing PTRACE_SINGLEBLOCK with data argument pointing to a buffer on stack which is assumed to fail. If the request would be interpreted as PTRACE_GETREGS, then the ptrace call will not fail and the regs are written to buf. If we run with a kernel with support for PTRACE_SINGLEBLOCK a ptrace call with data=NULL, returns zero with no error. If we run with a kernel without support for PTRACE_SINGLEBLOCK a ptrace call with data=NULL reports an error. In the latter case, the test is just continuing with PTRACE_CONT. ChangeLog: * sysdeps/unix/sysv/linux/s390/tst-ptrace-singleblock.c: Support running on kernels without PTRACE_SINGLEBLOCK.		2017-07-11 10:38:44 +02:00
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linux	S390: Fix tst-ptrace-singleblock if kernel does not support PTRACE_SINGLEBLOCK.	2017-07-11 10:38:44 +02:00