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230e51f211
Pull core signal updates from Ingo Molnar: "These updates from Stas Sergeev and Andy Lutomirski, improve the sigaltstack interface by extending its ABI with the SS_AUTODISARM feature, which makes it possible to use swapcontext() in a sighandler that works on sigaltstack. Without this flag, the subsequent signal will corrupt the state of the switched-away sighandler. The inspiration is more robust dosemu signal handling" * 'core-signals-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: signals/sigaltstack: Change SS_AUTODISARM to (1U << 31) signals/sigaltstack: Report current flag bits in sigaltstack() selftests/sigaltstack: Fix the sigaltstack test on old kernels signals/sigaltstack: If SS_AUTODISARM, bypass on_sig_stack() selftests/sigaltstack: Add new testcase for sigaltstack(SS_ONSTACK|SS_AUTODISARM) signals/sigaltstack: Implement SS_AUTODISARM flag signals/sigaltstack: Prepare to add new SS_xxx flags signals/sigaltstack, x86/signals: Unify the x86 sigaltstack check with other architectures |
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