1 files changed, 505 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/gen/t_siginfo.c b/contrib/netbsd-tests/lib/libc/gen/t_siginfo.c
new file mode 100644
index 000000000000..9c9a3c743c0b
--- /dev/null
+++ b/contrib/netbsd-tests/lib/libc/gen/t_siginfo.c
@@ -0,0 +1,505 @@
+/* $NetBSD: t_siginfo.c,v 1.24 2014/11/04 00:20:19 justin Exp $ */
+
+/*-
+ * Copyright (c) 2010 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <atf-c.h>
+
+#ifdef __NetBSD__
+#include <sys/inttypes.h>
+#endif
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <sys/time.h>
+#include <sys/ucontext.h>
+#include <sys/wait.h>
+
+#include <assert.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <setjmp.h>
+#include <float.h>
+
+#ifdef HAVE_FENV
+#include <fenv.h>
+#elif defined(_FLOAT_IEEE754)
+#include <ieeefp.h>
+#endif
+
+#include "isqemu.h"
+
+/* for sigbus */
+volatile char *addr;
+
+/* for sigchild */
+pid_t child;
+int code;
+int status;
+
+/* for sigfpe */
+sig_atomic_t fltdiv_signalled = 0;
+sig_atomic_t intdiv_signalled = 0;
+
+static void
+sig_debug(int signo, siginfo_t *info, ucontext_t *ctx)
+{
+	unsigned int i;
+
+	printf("%d %p %p\n", signo, info, ctx);
+	if (info != NULL) {
+		printf("si_signo=%d\n", info->si_signo);
+		printf("si_errno=%d\n", info->si_errno);
+		printf("si_code=%d\n", info->si_code);
+		printf("si_value.sival_int=%d\n", info->si_value.sival_int);
+	}
+	if (ctx != NULL) {
+		printf("uc_flags 0x%x\n", ctx->uc_flags);
+		printf("uc_link %p\n", ctx->uc_link);
+		for (i = 0; i < __arraycount(ctx->uc_sigmask.__bits); i++)
+			printf("uc_sigmask[%d] 0x%x\n", i,
+			    ctx->uc_sigmask.__bits[i]);
+		printf("uc_stack %p %lu 0x%x\n", ctx->uc_stack.ss_sp,
+		    (unsigned long)ctx->uc_stack.ss_size,
+		    ctx->uc_stack.ss_flags);
+#ifdef __NetBSD__
+		for (i = 0; i < __arraycount(ctx->uc_mcontext.__gregs); i++)
+			printf("uc_mcontext.greg[%d] 0x%lx\n", i,
+			    (long)ctx->uc_mcontext.__gregs[i]);
+#endif
+	}
+}
+
+static void
+sigalrm_action(int signo, siginfo_t *info, void *ptr)
+{
+
+	sig_debug(signo, info, (ucontext_t *)ptr);
+
+	ATF_REQUIRE_EQ(info->si_signo, SIGALRM);
+	ATF_REQUIRE_EQ(info->si_code, SI_TIMER);
+	ATF_REQUIRE_EQ(info->si_value.sival_int, ITIMER_REAL);
+
+	atf_tc_pass();
+	/* NOTREACHED */
+}
+
+ATF_TC(sigalarm);
+
+ATF_TC_HEAD(sigalarm, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGALRM handler");
+}
+
+ATF_TC_BODY(sigalarm, tc)
+{
+	struct sigaction sa;
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = sigalrm_action;
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGALRM, &sa, NULL);
+	for (;;) {
+		alarm(1);
+		sleep(1);
+	}
+	atf_tc_fail("SIGALRM handler wasn't called");
+}
+
+static void
+sigchild_action(int signo, siginfo_t *info, void *ptr)
+{
+	if (info != NULL) {
+		printf("info=%p\n", info);
+		printf("ptr=%p\n", ptr);
+		printf("si_signo=%d\n", info->si_signo);
+		printf("si_errno=%d\n", info->si_errno);
+		printf("si_code=%d\n", info->si_code);
+		printf("si_uid=%d\n", info->si_uid);
+		printf("si_pid=%d\n", info->si_pid);
+		printf("si_status=%d\n", info->si_status);
+#ifdef __NetBSD__
+		printf("si_utime=%lu\n", (unsigned long int)info->si_utime);
+		printf("si_stime=%lu\n", (unsigned long int)info->si_stime);
+#endif
+	}
+	ATF_REQUIRE_EQ(info->si_code, code);
+	ATF_REQUIRE_EQ(info->si_signo, SIGCHLD);
+	ATF_REQUIRE_EQ(info->si_uid, getuid());
+	ATF_REQUIRE_EQ(info->si_pid, child);
+	if (WIFEXITED(info->si_status))
+		ATF_REQUIRE_EQ(WEXITSTATUS(info->si_status), status);
+	else if (WIFSTOPPED(info->si_status))
+		ATF_REQUIRE_EQ(WSTOPSIG(info->si_status), status);
+	else if (WIFSIGNALED(info->si_status))
+		ATF_REQUIRE_EQ(WTERMSIG(info->si_status), status);
+}
+
+static void
+setchildhandler(void (*action)(int, siginfo_t *, void *))
+{
+	struct sigaction sa;
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = action;
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGCHLD, &sa, NULL);
+}
+
+static void
+sigchild_setup(void)
+{
+	sigset_t set;
+	struct rlimit rlim;
+
+	(void)getrlimit(RLIMIT_CORE, &rlim);
+	rlim.rlim_cur = rlim.rlim_max;
+	(void)setrlimit(RLIMIT_CORE, &rlim);
+
+	setchildhandler(sigchild_action);
+	sigemptyset(&set);
+	sigaddset(&set, SIGCHLD);
+	sigprocmask(SIG_BLOCK, &set, NULL);
+}
+
+ATF_TC(sigchild_normal);
+ATF_TC_HEAD(sigchild_normal, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGCHLD handler "
+	    "when child exits normally");
+}
+
+ATF_TC_BODY(sigchild_normal, tc)
+{
+	sigset_t set;
+
+	sigchild_setup();
+
+	status = 25;
+	code = CLD_EXITED;
+
+	switch ((child = fork())) {
+	case 0:
+		sleep(1);
+		exit(status);
+	case -1:
+		atf_tc_fail("fork failed");
+	default:
+		sigemptyset(&set);
+		sigsuspend(&set);
+	}
+}
+
+ATF_TC(sigchild_dump);
+ATF_TC_HEAD(sigchild_dump, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGCHLD handler "
+	    "when child segfaults");
+}
+
+ATF_TC_BODY(sigchild_dump, tc)
+{
+	sigset_t set;
+
+	sigchild_setup();
+
+	status = SIGSEGV;
+	code = CLD_DUMPED;
+
+	switch ((child = fork())) {
+	case 0:
+		sleep(1);
+		*(volatile long *)0 = 0;
+		atf_tc_fail("Child did not segfault");
+		/* NOTREACHED */
+	case -1:
+		atf_tc_fail("fork failed");
+	default:
+		sigemptyset(&set);
+		sigsuspend(&set);
+	}
+}
+
+ATF_TC(sigchild_kill);
+ATF_TC_HEAD(sigchild_kill, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGCHLD handler "
+	    "when child is killed");
+}
+
+ATF_TC_BODY(sigchild_kill, tc)
+{
+	sigset_t set;
+
+	sigchild_setup();
+
+	status = SIGPIPE;
+	code = CLD_KILLED;
+
+	switch ((child = fork())) {
+	case 0:
+		sigemptyset(&set);
+		sigsuspend(&set);
+		break;
+	case -1:
+		atf_tc_fail("fork failed");
+	default:
+		kill(child, SIGPIPE);
+		sigemptyset(&set);
+		sigsuspend(&set);
+	}
+}
+
+static sigjmp_buf sigfpe_flt_env;
+static void
+sigfpe_flt_action(int signo, siginfo_t *info, void *ptr)
+{
+
+	sig_debug(signo, info, (ucontext_t *)ptr);
+
+	if (fltdiv_signalled++ != 0)
+		atf_tc_fail("FPE handler called more than once");
+
+	ATF_REQUIRE_EQ(info->si_signo, SIGFPE);
+	ATF_REQUIRE_EQ(info->si_code, FPE_FLTDIV);
+	ATF_REQUIRE_EQ(info->si_errno, 0);
+
+	siglongjmp(sigfpe_flt_env, 1);
+}
+
+ATF_TC(sigfpe_flt);
+ATF_TC_HEAD(sigfpe_flt, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGFPE handler "
+	    "for floating div-by-zero");
+}
+
+ATF_TC_BODY(sigfpe_flt, tc)
+{
+	struct sigaction sa;
+	double d = strtod("0", NULL);
+
+	if (isQEMU())
+		atf_tc_skip("Test does not run correctly under QEMU");
+#if defined(__powerpc__)
+	atf_tc_skip("Test not valid on powerpc");
+#endif
+	if (sigsetjmp(sigfpe_flt_env, 0) == 0) {
+		sa.sa_flags = SA_SIGINFO;
+		sa.sa_sigaction = sigfpe_flt_action;
+		sigemptyset(&sa.sa_mask);
+		sigaction(SIGFPE, &sa, NULL);
+#ifdef HAVE_FENV
+		feenableexcept(FE_ALL_EXCEPT);
+#elif defined(_FLOAT_IEEE754)
+		fpsetmask(FP_X_INV|FP_X_DZ|FP_X_OFL|FP_X_UFL|FP_X_IMP);
+#endif
+		printf("%g\n", 1 / d);
+	}
+	if (fltdiv_signalled == 0)
+		atf_tc_fail("FPE signal handler was not invoked");
+}
+
+static sigjmp_buf sigfpe_int_env;
+static void
+sigfpe_int_action(int signo, siginfo_t *info, void *ptr)
+{
+
+	sig_debug(signo, info, (ucontext_t *)ptr);
+
+	if (intdiv_signalled++ != 0)
+		atf_tc_fail("INTDIV handler called more than once");
+
+	ATF_REQUIRE_EQ(info->si_signo, SIGFPE);
+	ATF_REQUIRE_EQ(info->si_code, FPE_INTDIV);
+	atf_tc_expect_pass();
+	ATF_REQUIRE_EQ(info->si_errno, 0);
+
+	siglongjmp(sigfpe_int_env, 1);
+}
+
+ATF_TC(sigfpe_int);
+ATF_TC_HEAD(sigfpe_int, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGFPE handler "
+	    "for integer div-by-zero (PR port-i386/43655)");
+}
+
+ATF_TC_BODY(sigfpe_int, tc)
+{
+	struct sigaction sa;
+	long l = strtol("0", NULL, 10);
+
+#if defined(__powerpc__)
+	atf_tc_skip("Test not valid on powerpc");
+#endif
+	if (sigsetjmp(sigfpe_int_env, 0) == 0) {
+		sa.sa_flags = SA_SIGINFO;
+		sa.sa_sigaction = sigfpe_int_action;
+		sigemptyset(&sa.sa_mask);
+		sigaction(SIGFPE, &sa, NULL);
+#ifdef HAVE_FENV
+		feenableexcept(FE_ALL_EXCEPT);
+#elif defined(_FLOAT_IEEE754)
+		fpsetmask(FP_X_INV|FP_X_DZ|FP_X_OFL|FP_X_UFL|FP_X_IMP);
+#endif
+		printf("%ld\n", 1 / l);
+	}
+	if (intdiv_signalled == 0)
+		atf_tc_fail("FPE signal handler was not invoked");
+}
+
+static void
+sigsegv_action(int signo, siginfo_t *info, void *ptr)
+{
+
+	sig_debug(signo, info, (ucontext_t *)ptr);
+
+	ATF_REQUIRE_EQ(info->si_signo, SIGSEGV);
+	ATF_REQUIRE_EQ(info->si_errno, 0);
+	ATF_REQUIRE_EQ(info->si_code, SEGV_MAPERR);
+	ATF_REQUIRE_EQ(info->si_addr, (void *)0);
+
+	atf_tc_pass();
+	/* NOTREACHED */
+}
+
+ATF_TC(sigsegv);
+ATF_TC_HEAD(sigsegv, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGSEGV handler");
+}
+
+ATF_TC_BODY(sigsegv, tc)
+{
+	struct sigaction sa;
+
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = sigsegv_action;
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGSEGV, &sa, NULL);
+
+	*(volatile long *)0 = 0;
+	atf_tc_fail("Test did not fault as expected");
+}
+
+static void
+sigbus_action(int signo, siginfo_t *info, void *ptr)
+{
+
+	printf("si_addr = %p\n", info->si_addr);
+	sig_debug(signo, info, (ucontext_t *)ptr);
+
+	ATF_REQUIRE_EQ(info->si_signo, SIGBUS);
+	ATF_REQUIRE_EQ(info->si_errno, 0);
+	ATF_REQUIRE_EQ(info->si_code, BUS_ADRALN);
+
+#if defined(__i386__) || defined(__x86_64__)
+	atf_tc_expect_fail("x86 architecture does not correctly "
+	    "report the address where the unaligned access occured");
+#endif
+	ATF_REQUIRE_EQ(info->si_addr, (volatile void *)addr);
+
+	atf_tc_pass();
+	/* NOTREACHED */
+}
+
+ATF_TC(sigbus_adraln);
+ATF_TC_HEAD(sigbus_adraln, tc)
+{
+
+	atf_tc_set_md_var(tc, "descr",
+	    "Checks that signal trampoline correctly calls SIGBUS handler "
+	    "for invalid address alignment");
+}
+
+ATF_TC_BODY(sigbus_adraln, tc)
+{
+	struct sigaction sa;
+
+#if defined(__alpha__)
+	int rv, val;
+	size_t len = sizeof(val);
+	rv = sysctlbyname("machdep.unaligned_sigbus", &val, &len, NULL, 0);
+	ATF_REQUIRE(rv == 0);
+	if (val == 0)
+		atf_tc_skip("SIGBUS signal not enabled for unaligned accesses");
+#endif
+
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = sigbus_action;
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGBUS, &sa, NULL);
+
+	/* Enable alignment checks for x86. 0x40000 is PSL_AC. */
+#if defined(__i386__)
+	__asm__("pushf; orl $0x40000, (%esp); popf");
+#elif defined(__amd64__)
+	__asm__("pushf; orl $0x40000, (%rsp); popf");
+#endif
+
+	addr = calloc(2, sizeof(int));
+	ATF_REQUIRE(addr != NULL);
+
+	if (isQEMU())
+		atf_tc_expect_fail("QEMU fails to trap unaligned accesses");
+
+	/* Force an unaligned access */
+	addr++;
+	printf("now trying to access unaligned address %p\n", addr);
+	ATF_REQUIRE_EQ(*(volatile int *)addr, 0);
+
+	atf_tc_fail("Test did not fault as expected");
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, sigalarm);
+	ATF_TP_ADD_TC(tp, sigchild_normal);
+	ATF_TP_ADD_TC(tp, sigchild_dump);
+	ATF_TP_ADD_TC(tp, sigchild_kill);
+	ATF_TP_ADD_TC(tp, sigfpe_flt);
+	ATF_TP_ADD_TC(tp, sigfpe_int);
+	ATF_TP_ADD_TC(tp, sigsegv);
+	ATF_TP_ADD_TC(tp, sigbus_adraln);
+
+	return atf_no_error();
+}