29 lines
847 B
C
29 lines
847 B
C
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#include <lib.h>
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#define sigfillset _sigfillset
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#define sigprocmask _sigprocmask
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#define sigreturn _sigreturn
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#include <sys/sigcontext.h>
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#include <signal.h>
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PUBLIC int sigreturn(scp)
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register struct sigcontext *scp;
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{
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sigset_t set;
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/* The message can't be on the stack, because the stack will vanish out
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* from under us. The send part of sendrec will succeed, but when
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* a message is sent to restart the current process, who knows what will
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* be in the place formerly occupied by the message?
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*/
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static message m;
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/* Protect against race conditions by blocking all interrupts. */
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sigfillset(&set); /* splhi */
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sigprocmask(SIG_SETMASK, &set, (sigset_t *) NULL);
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m.m2_l1 = scp->sc_mask;
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m.m2_i2 = scp->sc_flags;
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m.m2_p1 = (char *) scp;
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return(_syscall(MM, SIGRETURN, &m)); /* normally this doesn't return */
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}
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