a30ec4b99c
is useless for threaded programs, multiple threads can not share same stack. The alternative signal stack is private for thread, no lock is needed, the orignal P_ALTSTACK is now moved into td_pflags and renamed to TDP_ALTSTACK. For single thread or Linux clone() based threaded program, there is no semantic changed, because those programs only have one kernel thread in every process. Reviewed by: deischen, dfr |
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| .. | ||
| central | ||
| compile | ||
| conf | ||
| creator | ||
| ebus | ||
| fhc | ||
| include | ||
| isa | ||
| pci | ||
| sbus | ||
| sparc64 | ||