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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. |
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| clock_gettime.c | ||
| clock_nanosleep.c | ||
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| confstr.h | ||
| get_child_max.c | ||
| getlogin_r.c | ||
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| ifreq.c | ||
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| make-syscalls.sh | ||
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| s-proto-cancel.S | ||
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| setxid.h | ||
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| syscall-template.S | ||
| syscall.S | ||
| syscalls.list | ||
| sysdep.h | ||