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* hurd/Makefile: add new tests * hurd/test-sig-rpc-interrupted.c: check xstate save and restore in the case where a signal is delivered to a thread which is waiting for an rpc. This test implements the rpc interruption protocol used by the hurd servers. It was so far passing on Debian thanks to the local-intr-msg-clobber.diff patch, which is now obsolete. * hurd/test-sig-xstate.c: check xstate save and restore in the case where a signal is delivered to a running thread, making sure that the xstate is modified in the signal handler. * hurd/test-xstate.h: add helpers to test xstate * sysdeps/mach/hurd/i386/bits/sigcontext.h: add xstate to the sigcontext structure. + sysdeps/mach/hurd/i386/sigreturn.c: restore xstate from the saved context * sysdeps/mach/hurd/x86/trampoline.c: save xstate if supported. Otherwise we fall back to the previous behaviour of ignoring xstate. * sysdeps/mach/hurd/x86_64/bits/sigcontext.h: add xstate to the sigcontext structure. * sysdeps/mach/hurd/x86_64/sigreturn.c: restore xstate from the saved context Signed-off-by: Luca Dariz <luca@orpolo.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Message-ID: <20250319171118.142163-1-luca@orpolo.org>