Let trigger_fpe() cause floating-point divide by zero exception, instead of
integer one, which is not trapped for powerpc and aarch64. Note that it is checked in lib/libc/gen/t_siginfo whether integer divide by zero is interpreted as SIGFPE or not. Now, all *_crash_fpe tests pass for powerpc, and nothing changes for amd64 at least.
This commit is contained in:
parent
2d089d6a31
commit
f68301ec40
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@ -1,4 +1,4 @@
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/* $NetBSD: t_ptrace_signal_wait.h,v 1.1 2020/05/04 23:49:31 kamil Exp $ */
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/* $NetBSD: t_ptrace_signal_wait.h,v 1.2 2020/06/17 08:42:16 rin Exp $ */
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/*-
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* Copyright (c) 2016, 2017, 2018, 2019, 2020 The NetBSD Foundation, Inc.
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@ -423,7 +423,7 @@ traceme_crash(int sig)
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info.psi_siginfo.si_code <= ILL_BADSTK);
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break;
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case SIGFPE:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_INTDIV);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_FLTDIV);
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break;
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case SIGBUS:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, BUS_ADRERR);
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@ -603,7 +603,7 @@ traceme_signalmasked_crash(int sig)
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info.psi_siginfo.si_code <= ILL_BADSTK);
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break;
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case SIGFPE:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_INTDIV);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_FLTDIV);
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break;
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case SIGBUS:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, BUS_ADRERR);
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@ -786,7 +786,7 @@ traceme_signalignored_crash(int sig)
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info.psi_siginfo.si_code <= ILL_BADSTK);
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break;
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case SIGFPE:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_INTDIV);
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, FPE_FLTDIV);
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break;
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case SIGBUS:
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ATF_REQUIRE_EQ(info.psi_siginfo.si_code, BUS_ADRERR);
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@ -1890,7 +1890,7 @@ unrelated_tracer_sees_crash(int sig, bool masked, bool ignored)
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info.psi_siginfo.si_code <= ILL_BADSTK);
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break;
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case SIGFPE:
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FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, FPE_INTDIV);
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FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, FPE_FLTDIV);
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break;
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case SIGBUS:
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FORKEE_ASSERT_EQ(info.psi_siginfo.si_code, BUS_ADRERR);
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@ -1,4 +1,4 @@
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/* $NetBSD: t_ptrace_wait.h,v 1.29 2020/06/17 08:23:18 rin Exp $ */
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/* $NetBSD: t_ptrace_wait.h,v 1.30 2020/06/17 08:42:16 rin Exp $ */
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/*-
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* Copyright (c) 2016, 2017, 2018, 2019 The NetBSD Foundation, Inc.
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@ -678,15 +678,14 @@ are_fpu_exceptions_supported(void)
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static void __used
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trigger_fpe(void)
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{
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volatile int a = getpid();
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volatile int b = atoi("0");
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volatile double a = getpid();
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volatile double b = atoi("0");
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#ifdef __HAVE_FENV
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feenableexcept(FE_ALL_EXCEPT);
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#endif
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/* Division by zero causes CPU trap, translated to SIGFPE */
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usleep(a / b);
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usleep((int)(a / b));
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}
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static void __used
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