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由 Martin Schwidefsky 提交于
A 31-bit kernel always sets the high order bit in the return address for a signal handler. git commit d4e81b35 "[S390] allow all addressing modes" makes sure that the high order bit is set in the signal return address for standard signals of a 31-bit compat process but fails to do the same for real-time signals. To make things consistent the bit needs to be set by setup_rt_frame32 as well. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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