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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/ValidationKit/utils/cpu/exceptionsR3.cpp
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/ValidationKit/utils/cpu/exceptionsR3.cpp')
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+/* $Id: exceptionsR3.cpp $ */
+/** @file
+ * exceptionsR3 - Tests various ring-3 CPU exceptions.
+ */
+
+/*
+ * Copyright (C) 2009-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+* Header Files *
+*********************************************************************************************************************************/
+#include <iprt/cdefs.h>
+#include <iprt/ctype.h>
+#include <iprt/getopt.h>
+#include <iprt/stream.h>
+#include <iprt/string.h>
+#include <iprt/test.h>
+#include <iprt/x86.h>
+
+#include <setjmp.h>
+
+#ifndef RT_OS_WINDOWS
+# define USE_SIGNALS
+# include <signal.h>
+# include <stdlib.h>
+#endif
+
+
+/*********************************************************************************************************************************
+* Defined Constants And Macros *
+*********************************************************************************************************************************/
+/** Executes a simple test. */
+#define TST_XCPT(Trapper, iTrap, uErr) \
+ do \
+ { \
+ RTTestISub(#Trapper); \
+ tstXcptReset(); \
+ if (!setjmp(g_JmpBuf)) \
+ { \
+ tstXcptAsm##Trapper(); \
+ RTTestIFailed("%s didn't trap (line no %u)", #Trapper, __LINE__); \
+ } \
+ else if ( (iTrap) != tstXcptCurTrap() \
+ || (uErr) != tstXcptCurErr() ) \
+ RTTestIFailed("%s trapped with %#x/%#x, expected %#x/%#x (line no %u)", \
+ #Trapper, tstXcptCurTrap(), tstXcptCurErr(), (iTrap), (uErr), __LINE__); \
+ else \
+ RTTestISubDone(); \
+ } while (0)
+
+
+/*********************************************************************************************************************************
+* Global Variables *
+*********************************************************************************************************************************/
+/** Where to longjmp to when getting a signal/exception. */
+jmp_buf g_JmpBuf;
+#ifdef USE_SIGNALS
+/** Pending signal.
+ * -1 if no signal is pending. */
+int32_t volatile g_iSignal;
+/** Pending signal info. */
+siginfo_t volatile g_SigInfo;
+#endif
+
+
+/*********************************************************************************************************************************
+* Internal Functions *
+*********************************************************************************************************************************/
+DECLASM(void) tstXcptAsmNullPtrRead(void);
+DECLASM(void) tstXcptAsmNullPtrWrite(void);
+DECLASM(void) tstXcptAsmSysEnter(void);
+DECLASM(void) tstXcptAsmSysCall(void);
+
+
+
+#ifdef USE_SIGNALS
+/**
+ * Generic signal handler.
+ */
+static void tstXcptSigHandler(int iSignal, siginfo_t *pSigInfo, void *pvCtx)
+{
+#if 1
+ RTStrmPrintf(g_pStdErr, "signal %d pSigInfo=%p pvCtx=%p", iSignal, pSigInfo, pvCtx);
+ if (pSigInfo)
+ RTStrmPrintf(g_pStdErr, " si_addr=%p si_code=%#x sival_ptr=%p sival_int=%d",
+ pSigInfo->si_addr, pSigInfo->si_code, pSigInfo->si_value.sival_ptr, pSigInfo->si_value.sival_int);
+ RTStrmPrintf(g_pStdErr, "\n");
+#endif
+ if (g_iSignal == -1)
+ {
+ g_iSignal = iSignal;
+ if (pSigInfo)
+ memcpy((void *)&g_SigInfo, pSigInfo, sizeof(g_SigInfo));
+ longjmp(g_JmpBuf, 1);
+ }
+ else
+ {
+ /* we're up the infamous creek... */
+ _Exit(2);
+ }
+}
+
+#elif defined(RT_OS_WINDOWS)
+/** @todo */
+//# error "PORTME"
+
+#else
+# error "PORTME"
+#endif
+
+
+/** Reset the current exception state and get ready for a new trap. */
+static void tstXcptReset(void)
+{
+#ifdef USE_SIGNALS
+ g_iSignal = -1;
+ memset((void *)&g_SigInfo, 0, sizeof(g_SigInfo));
+#endif
+}
+
+
+
+/** Get the current intel trap number. Returns -1 if none. */
+static int tstXcptCurTrap(void)
+{
+#ifdef USE_SIGNALS
+ /** @todo this is just a quick sketch. */
+ switch (g_iSignal)
+ {
+ case SIGBUS:
+# ifdef RT_OS_DARWIN
+ if (g_SigInfo.si_code == 2 /*KERN_PROTECTION_FAILURE*/)
+ return X86_XCPT_PF;
+# endif
+ return X86_XCPT_GP;
+
+ case SIGSEGV:
+ return X86_XCPT_GP;
+ }
+#endif
+ return -1;
+}
+
+
+/** Get the exception error code if applicable. */
+static uint32_t tstXcptCurErr(void)
+{
+#ifdef USE_SIGNALS
+ /** @todo this is just a quick sketch. */
+ switch (g_iSignal)
+ {
+ case SIGBUS:
+# ifdef RT_OS_DARWIN
+ if (g_SigInfo.si_code == 2 /*KERN_PROTECTION_FAILURE*/)
+ return 0;
+# endif
+ break;
+
+ case SIGSEGV:
+ break;
+ }
+#endif
+ return UINT32_MAX;
+}
+
+
+int main(int argc, char **argv)
+{
+ /*
+ * Prolog.
+ */
+ RTTEST hTest;
+ int rc = RTTestInitAndCreate("exceptionsR3", &hTest);
+ if (rc)
+ return rc;
+
+ /*
+ * Parse options.
+ */
+ bool volatile fRawMode = false;
+ static const RTGETOPTDEF s_aOptions[] =
+ {
+ { "--raw-mode", 'r', RTGETOPT_REQ_NOTHING },
+ };
+
+ RTGETOPTUNION ValUnion;
+ RTGETOPTSTATE GetState;
+ RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
+ while ((rc = RTGetOpt(&GetState, &ValUnion)))
+ {
+ switch (rc)
+ {
+ case 'r':
+ fRawMode = true;
+ break;
+
+ default:
+ return RTGetOptPrintError(rc, &ValUnion);
+ }
+ }
+
+ /*
+ * Test setup.
+ */
+#ifdef USE_SIGNALS
+ struct sigaction Act;
+ RT_ZERO(Act);
+ Act.sa_sigaction = tstXcptSigHandler;
+ Act.sa_flags = SA_SIGINFO;
+ sigfillset(&Act.sa_mask);
+
+ sigaction(SIGILL, &Act, NULL);
+ sigaction(SIGTRAP, &Act, NULL);
+# ifdef SIGEMT
+ sigaction(SIGEMT, &Act, NULL);
+# endif
+ sigaction(SIGFPE, &Act, NULL);
+ sigaction(SIGBUS, &Act, NULL);
+ sigaction(SIGSEGV, &Act, NULL);
+
+#else
+ /** @todo Implement this using structured exception handling on Windows and
+ * OS/2. */
+#endif
+
+ /*
+ * The tests.
+ */
+ RTTestBanner(hTest);
+ TST_XCPT(NullPtrRead, X86_XCPT_PF, 0);
+ TST_XCPT(NullPtrWrite, X86_XCPT_PF, 0);
+ if (fRawMode)
+ {
+ TST_XCPT(SysEnter, X86_XCPT_GP, 0);
+ TST_XCPT(SysCall, X86_XCPT_UD, 0);
+ }
+
+ /*
+ * Epilog.
+ */
+ return RTTestSummaryAndDestroy(hTest);
+}
+