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Simplify and correct OSF/1 signal handling.
- No signal translation is needed. Our signals match the OSF/1 signals - an OSF/1 sigset_t is 64 bits. Make certain to use all 64-bits of it. We'd previously only used the lower 32 bits. This was mostly harmless as I don't know of an OSF/1 apps which use any signals > 31. However, the alpha Linux ABI uses the osf/1 signal routines and threaded linux apps tyically use signals 32 and 33 to comminicate with the manager thread, so it is important we preserve the upper 32-bits. Reviewed by: marcel (at least in principal)
This commit is contained in:
Andrew Gallatin
parent
20af769e69
commit
f16647740e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=68588
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@ -101,92 +101,18 @@ static void osf1_to_bsd_sigaction __P((const struct osf1_sigaction *osa,
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#define osf1_sigismember(s, n) (*(s) & sigmask(n))
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#define osf1_sigaddset(s, n) (*(s) |= sigmask(n))
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int bsd_to_osf1_sig[OSF1_SIGTBLSZ] = {
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OSF1_SIGHUP, /* 1 */
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OSF1_SIGINT, /* 2 */
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OSF1_SIGQUIT, /* 3 */
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OSF1_SIGILL, /* 4 */
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OSF1_SIGTRAP, /* 5 */
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OSF1_SIGABRT, /* 6 */
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OSF1_SIGEMT, /* 7 */
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OSF1_SIGFPE, /* 8 */
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OSF1_SIGKILL, /* 9 */
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OSF1_SIGBUS, /* 10 */
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OSF1_SIGSEGV, /* 11 */
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OSF1_SIGSYS, /* 12 */
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OSF1_SIGPIPE, /* 13 */
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OSF1_SIGALRM, /* 14 */
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OSF1_SIGTERM, /* 15 */
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OSF1_SIGURG, /* 16 */
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OSF1_SIGSTOP, /* 17 */
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OSF1_SIGTSTP, /* 18 */
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OSF1_SIGCONT, /* 19 */
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OSF1_SIGCHLD, /* 20 */
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OSF1_SIGTTIN, /* 21 */
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OSF1_SIGTTOU, /* 22 */
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OSF1_SIGIO, /* 23 */
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OSF1_SIGXCPU, /* 24 */
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OSF1_SIGXFSZ, /* 25 */
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OSF1_SIGVTALRM, /* 26 */
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OSF1_SIGPROF, /* 27 */
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OSF1_SIGWINCH, /* 28 */
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OSF1_SIGINFO, /* 29 */
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OSF1_SIGUSR1, /* 30 */
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OSF1_SIGUSR2, /* 31 */
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0 /* 32 */
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};
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int osf1_to_bsd_sig[OSF1_SIGTBLSZ] = {
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SIGHUP, /* 1 */
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SIGINT, /* 2 */
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SIGQUIT, /* 3 */
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SIGILL, /* 4 */
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SIGTRAP, /* 5 */
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SIGABRT, /* 6 */
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SIGEMT, /* 7 */
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SIGFPE, /* 8 */
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SIGKILL, /* 9 */
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SIGBUS, /* 10 */
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SIGSEGV, /* 11 */
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SIGSYS, /* 12 */
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SIGPIPE, /* 13 */
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SIGALRM, /* 14 */
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SIGTERM, /* 15 */
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SIGURG, /* 16 */
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SIGSTOP, /* 17 */
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SIGTSTP, /* 18 */
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SIGCONT, /* 19 */
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SIGCHLD, /* 20 */
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SIGTTIN, /* 21 */
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SIGTTOU, /* 22 */
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SIGIO, /* 23 */
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SIGXCPU, /* 24 */
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SIGXFSZ, /* 25 */
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SIGVTALRM, /* 26 */
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SIGPROF, /* 27 */
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SIGWINCH, /* 28 */
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SIGINFO, /* 29 */
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SIGUSR1, /* 30 */
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SIGUSR2, /* 31 */
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0 /* 32 */
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};
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void
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osf1_to_bsd_sigset(oss, bss)
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const osf1_sigset_t *oss;
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sigset_t *bss;
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{
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int i, newsig;
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const u_int32_t *obits;
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SIGEMPTYSET(*bss);
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for (i = 1; i <= OSF1_SIGTBLSZ; i++) {
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if (osf1_sigismember(oss, i)) {
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newsig = osf1_to_bsd_sig[_SIG_IDX(i)];
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if (newsig)
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SIGADDSET(*bss, newsig);
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}
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}
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obits = (const u_int32_t *)oss;
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bss->__bits[0] = obits[0];
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bss->__bits[1] = obits[1];
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}
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void
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@ -194,17 +120,12 @@ bsd_to_osf1_sigset(bss, oss)
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const sigset_t *bss;
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osf1_sigset_t *oss;
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{
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int i, newsig;
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u_int32_t *obits;
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osf1_sigemptyset(oss);
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for (i = 1; i <= OSF1_SIGTBLSZ; i++) {
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if (SIGISMEMBER(*bss, i)) {
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newsig = bsd_to_osf1_sig[_SIG_IDX(i)];
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if (newsig)
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osf1_sigaddset(oss, newsig);
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}
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}
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obits = (u_int32_t *)oss;
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obits[0] = bss->__bits[0];
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obits[1] = bss->__bits[1];
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}
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/*
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@ -319,7 +240,7 @@ osf1_sigaction(p, uap)
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} else
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nbsa = NULL;
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SCARG(&sa, sig) = OSF1_OSF12BSD_SIG(SCARG(uap, signum));
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SCARG(&sa, sig) = SCARG(uap, signum);
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SCARG(&sa, act) = nbsa;
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SCARG(&sa, oact) = obsa;
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@ -394,7 +315,7 @@ osf1_signal(p, uap)
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sg = stackgap_init();
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signum = OSF1_OSF12BSD_SIG(OSF1_SIGNO(SCARG(uap, signum)));
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signum = OSF1_SIGNO(SCARG(uap, signum));
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if (signum <= 0 || signum > OSF1_NSIG) {
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if (OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGNAL_MASK ||
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OSF1_SIGCALL(SCARG(uap, signum)) == OSF1_SIGDEFER_MASK)
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@ -635,7 +556,7 @@ osf1_kill(p, uap)
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struct kill_args ka;
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SCARG(&ka, pid) = SCARG(uap, pid);
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SCARG(&ka, signum) = OSF1_OSF12BSD_SIG(SCARG(uap, signum));
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SCARG(&ka, signum) = SCARG(uap, signum);
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return kill(p, &ka);
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}
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@ -698,7 +619,7 @@ osf1_sendsig(sig_t catcher, int sig, sigset_t *mask, u_long code)
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* Build the signal context to be used by sigreturn.
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*/
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ksi.si_sc.sc_onstack = oonstack;
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SIG2OSIG(*mask, ksi.si_sc.sc_mask);
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bsd_to_osf1_sigset(mask, &ksi.si_sc.sc_mask);
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ksi.si_sc.sc_pc = frame->tf_regs[FRAME_PC];
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ksi.si_sc.sc_ps = frame->tf_regs[FRAME_PS];
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@ -787,7 +708,7 @@ osf1_sigreturn(struct proc *p,
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* sigmask is stored in sc_reserved, sc_mask is only used for
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* backward compatibility.
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*/
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SIGSETOLD(p->p_sigmask, ksc.sc_mask);
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osf1_to_bsd_sigset(&ksc.sc_mask, &p->p_sigmask);
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SIG_CANTMASK(p->p_sigmask);
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set_regs(p, (struct reg *)ksc.sc_regs);
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@ -3,39 +3,7 @@
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#ifndef _OSF1_SIGNAL_H
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#define _OSF1_SIGNAL_H
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#define OSF1_SIGHUP 1
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#define OSF1_SIGINT 2
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#define OSF1_SIGQUIT 3
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#define OSF1_SIGILL 4
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#define OSF1_SIGTRAP 5
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#define OSF1_SIGABRT 6
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#define OSF1_SIGEMT 7
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#define OSF1_SIGFPE 8
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#define OSF1_SIGKILL 9
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#define OSF1_SIGBUS 10
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#define OSF1_SIGSEGV 11
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#define OSF1_SIGSYS 12
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#define OSF1_SIGPIPE 13
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#define OSF1_SIGALRM 14
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#define OSF1_SIGTERM 15
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#define OSF1_SIGURG 16
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#define OSF1_SIGSTOP 17
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#define OSF1_SIGTSTP 18
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#define OSF1_SIGCONT 19
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#define OSF1_SIGCHLD 20
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#define OSF1_SIGTTIN 21
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#define OSF1_SIGTTOU 22
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#define OSF1_SIGIO 23
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#define OSF1_SIGXCPU 24
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#define OSF1_SIGXFSZ 25
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#define OSF1_SIGVTALRM 26
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#define OSF1_SIGPROF 27
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#define OSF1_SIGWINCH 28
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#define OSF1_SIGINFO 29
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#define OSF1_SIGUSR1 30
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#define OSF1_SIGUSR2 31
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#define OSF1_NSIG 32
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#define OSF1_SIGTBLSZ 32
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#define OSF1_NSIG 64
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#define OSF1_SIG_DFL 0
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#define OSF1_SIG_ERR -1
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@ -50,12 +18,6 @@
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#define OSF1_SIG_SETMASK 3
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#define OSF1_BSD2OSF1_SIG(sig) \
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(((sig) <= OSF1_SIGTBLSZ) ? bsd_to_osf1_sig[_SIG_IDX(sig)] : sig)
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#define OSF1_OSF12BSD_SIG(sig) \
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(((sig) <= OSF1_SIGTBLSZ) ? osf1_to_bsd_sig[_SIG_IDX(sig)] : sig)
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typedef u_long osf1_sigset_t;
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typedef void (*osf1_handler_t) __P((int));
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@ -63,8 +63,8 @@ struct sysentvec osf1_sysvec = {
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OSF1_SYS_MAXSYSCALL,
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osf1_sysent,
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0x0,
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NSIG,
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bsd_to_osf1_sig,
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0,
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0,
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0,
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0,
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0, /* trap-to-signal translation function */
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