| 1 | /* $Id: exceptionsR3.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * exceptionsR3 - Tests various ring-3 CPU exceptions.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2009-2020 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include <iprt/cdefs.h>
|
|---|
| 32 | #include <iprt/ctype.h>
|
|---|
| 33 | #include <iprt/getopt.h>
|
|---|
| 34 | #include <iprt/stream.h>
|
|---|
| 35 | #include <iprt/string.h>
|
|---|
| 36 | #include <iprt/test.h>
|
|---|
| 37 | #include <iprt/x86.h>
|
|---|
| 38 |
|
|---|
| 39 | #include <setjmp.h>
|
|---|
| 40 |
|
|---|
| 41 | #ifndef RT_OS_WINDOWS
|
|---|
| 42 | # define USE_SIGNALS
|
|---|
| 43 | # include <signal.h>
|
|---|
| 44 | # include <stdlib.h>
|
|---|
| 45 | #endif
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | /*********************************************************************************************************************************
|
|---|
| 49 | * Defined Constants And Macros *
|
|---|
| 50 | *********************************************************************************************************************************/
|
|---|
| 51 | /** Executes a simple test. */
|
|---|
| 52 | #define TST_XCPT(Trapper, iTrap, uErr) \
|
|---|
| 53 | do \
|
|---|
| 54 | { \
|
|---|
| 55 | RTTestISub(#Trapper); \
|
|---|
| 56 | tstXcptReset(); \
|
|---|
| 57 | if (!setjmp(g_JmpBuf)) \
|
|---|
| 58 | { \
|
|---|
| 59 | tstXcptAsm##Trapper(); \
|
|---|
| 60 | RTTestIFailed("%s didn't trap (line no %u)", #Trapper, __LINE__); \
|
|---|
| 61 | } \
|
|---|
| 62 | else if ( (iTrap) != tstXcptCurTrap() \
|
|---|
| 63 | || (uErr) != tstXcptCurErr() ) \
|
|---|
| 64 | RTTestIFailed("%s trapped with %#x/%#x, expected %#x/%#x (line no %u)", \
|
|---|
| 65 | #Trapper, tstXcptCurTrap(), tstXcptCurErr(), (iTrap), (uErr), __LINE__); \
|
|---|
| 66 | else \
|
|---|
| 67 | RTTestISubDone(); \
|
|---|
| 68 | } while (0)
|
|---|
| 69 |
|
|---|
| 70 |
|
|---|
| 71 | /*********************************************************************************************************************************
|
|---|
| 72 | * Global Variables *
|
|---|
| 73 | *********************************************************************************************************************************/
|
|---|
| 74 | /** Where to longjmp to when getting a signal/exception. */
|
|---|
| 75 | jmp_buf g_JmpBuf;
|
|---|
| 76 | #ifdef USE_SIGNALS
|
|---|
| 77 | /** Pending signal.
|
|---|
| 78 | * -1 if no signal is pending. */
|
|---|
| 79 | int32_t volatile g_iSignal;
|
|---|
| 80 | /** Pending signal info. */
|
|---|
| 81 | siginfo_t volatile g_SigInfo;
|
|---|
| 82 | #endif
|
|---|
| 83 |
|
|---|
| 84 |
|
|---|
| 85 | /*********************************************************************************************************************************
|
|---|
| 86 | * Internal Functions *
|
|---|
| 87 | *********************************************************************************************************************************/
|
|---|
| 88 | DECLASM(void) tstXcptAsmNullPtrRead(void);
|
|---|
| 89 | DECLASM(void) tstXcptAsmNullPtrWrite(void);
|
|---|
| 90 | DECLASM(void) tstXcptAsmSysEnter(void);
|
|---|
| 91 | DECLASM(void) tstXcptAsmSysCall(void);
|
|---|
| 92 |
|
|---|
| 93 |
|
|---|
| 94 |
|
|---|
| 95 | #ifdef USE_SIGNALS
|
|---|
| 96 | /**
|
|---|
| 97 | * Generic signal handler.
|
|---|
| 98 | */
|
|---|
| 99 | static void tstXcptSigHandler(int iSignal, siginfo_t *pSigInfo, void *pvCtx)
|
|---|
| 100 | {
|
|---|
| 101 | #if 1
|
|---|
| 102 | RTStrmPrintf(g_pStdErr, "signal %d pSigInfo=%p pvCtx=%p", iSignal, pSigInfo, pvCtx);
|
|---|
| 103 | if (pSigInfo)
|
|---|
| 104 | RTStrmPrintf(g_pStdErr, " si_addr=%p si_code=%#x sival_ptr=%p sival_int=%d",
|
|---|
| 105 | pSigInfo->si_addr, pSigInfo->si_code, pSigInfo->si_value.sival_ptr, pSigInfo->si_value.sival_int);
|
|---|
| 106 | RTStrmPrintf(g_pStdErr, "\n");
|
|---|
| 107 | #endif
|
|---|
| 108 | if (g_iSignal == -1)
|
|---|
| 109 | {
|
|---|
| 110 | g_iSignal = iSignal;
|
|---|
| 111 | if (pSigInfo)
|
|---|
| 112 | memcpy((void *)&g_SigInfo, pSigInfo, sizeof(g_SigInfo));
|
|---|
| 113 | longjmp(g_JmpBuf, 1);
|
|---|
| 114 | }
|
|---|
| 115 | else
|
|---|
| 116 | {
|
|---|
| 117 | /* we're up the infamous creek... */
|
|---|
| 118 | _Exit(2);
|
|---|
| 119 | }
|
|---|
| 120 | }
|
|---|
| 121 |
|
|---|
| 122 | #elif defined(RT_OS_WINDOWS)
|
|---|
| 123 | /** @todo */
|
|---|
| 124 | //# error "PORTME"
|
|---|
| 125 |
|
|---|
| 126 | #else
|
|---|
| 127 | # error "PORTME"
|
|---|
| 128 | #endif
|
|---|
| 129 |
|
|---|
| 130 |
|
|---|
| 131 | /** Reset the current exception state and get ready for a new trap. */
|
|---|
| 132 | static void tstXcptReset(void)
|
|---|
| 133 | {
|
|---|
| 134 | #ifdef USE_SIGNALS
|
|---|
| 135 | g_iSignal = -1;
|
|---|
| 136 | memset((void *)&g_SigInfo, 0, sizeof(g_SigInfo));
|
|---|
| 137 | #endif
|
|---|
| 138 | }
|
|---|
| 139 |
|
|---|
| 140 |
|
|---|
| 141 |
|
|---|
| 142 | /** Get the current intel trap number. Returns -1 if none. */
|
|---|
| 143 | static int tstXcptCurTrap(void)
|
|---|
| 144 | {
|
|---|
| 145 | #ifdef USE_SIGNALS
|
|---|
| 146 | /** @todo this is just a quick sketch. */
|
|---|
| 147 | switch (g_iSignal)
|
|---|
| 148 | {
|
|---|
| 149 | case SIGBUS:
|
|---|
| 150 | # ifdef RT_OS_DARWIN
|
|---|
| 151 | if (g_SigInfo.si_code == 2 /*KERN_PROTECTION_FAILURE*/)
|
|---|
| 152 | return X86_XCPT_PF;
|
|---|
| 153 | # endif
|
|---|
| 154 | return X86_XCPT_GP;
|
|---|
| 155 |
|
|---|
| 156 | case SIGSEGV:
|
|---|
| 157 | return X86_XCPT_GP;
|
|---|
| 158 | }
|
|---|
| 159 | #endif
|
|---|
| 160 | return -1;
|
|---|
| 161 | }
|
|---|
| 162 |
|
|---|
| 163 |
|
|---|
| 164 | /** Get the exception error code if applicable. */
|
|---|
| 165 | static uint32_t tstXcptCurErr(void)
|
|---|
| 166 | {
|
|---|
| 167 | #ifdef USE_SIGNALS
|
|---|
| 168 | /** @todo this is just a quick sketch. */
|
|---|
| 169 | switch (g_iSignal)
|
|---|
| 170 | {
|
|---|
| 171 | case SIGBUS:
|
|---|
| 172 | # ifdef RT_OS_DARWIN
|
|---|
| 173 | if (g_SigInfo.si_code == 2 /*KERN_PROTECTION_FAILURE*/)
|
|---|
| 174 | return 0;
|
|---|
| 175 | # endif
|
|---|
| 176 | break;
|
|---|
| 177 |
|
|---|
| 178 | case SIGSEGV:
|
|---|
| 179 | break;
|
|---|
| 180 | }
|
|---|
| 181 | #endif
|
|---|
| 182 | return UINT32_MAX;
|
|---|
| 183 | }
|
|---|
| 184 |
|
|---|
| 185 |
|
|---|
| 186 | int main(int argc, char **argv)
|
|---|
| 187 | {
|
|---|
| 188 | /*
|
|---|
| 189 | * Prolog.
|
|---|
| 190 | */
|
|---|
| 191 | RTTEST hTest;
|
|---|
| 192 | int rc = RTTestInitAndCreate("exceptionsR3", &hTest);
|
|---|
| 193 | if (rc)
|
|---|
| 194 | return rc;
|
|---|
| 195 |
|
|---|
| 196 | /*
|
|---|
| 197 | * Parse options.
|
|---|
| 198 | */
|
|---|
| 199 | bool volatile fRawMode = false;
|
|---|
| 200 | static const RTGETOPTDEF s_aOptions[] =
|
|---|
| 201 | {
|
|---|
| 202 | { "--raw-mode", 'r', RTGETOPT_REQ_NOTHING },
|
|---|
| 203 | };
|
|---|
| 204 |
|
|---|
| 205 | RTGETOPTUNION ValUnion;
|
|---|
| 206 | RTGETOPTSTATE GetState;
|
|---|
| 207 | RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
|
|---|
| 208 | while ((rc = RTGetOpt(&GetState, &ValUnion)))
|
|---|
| 209 | {
|
|---|
| 210 | switch (rc)
|
|---|
| 211 | {
|
|---|
| 212 | case 'r':
|
|---|
| 213 | fRawMode = true;
|
|---|
| 214 | break;
|
|---|
| 215 |
|
|---|
| 216 | default:
|
|---|
| 217 | return RTGetOptPrintError(rc, &ValUnion);
|
|---|
| 218 | }
|
|---|
| 219 | }
|
|---|
| 220 |
|
|---|
| 221 | /*
|
|---|
| 222 | * Test setup.
|
|---|
| 223 | */
|
|---|
| 224 | #ifdef USE_SIGNALS
|
|---|
| 225 | struct sigaction Act;
|
|---|
| 226 | RT_ZERO(Act);
|
|---|
| 227 | Act.sa_sigaction = tstXcptSigHandler;
|
|---|
| 228 | Act.sa_flags = SA_SIGINFO;
|
|---|
| 229 | sigfillset(&Act.sa_mask);
|
|---|
| 230 |
|
|---|
| 231 | sigaction(SIGILL, &Act, NULL);
|
|---|
| 232 | sigaction(SIGTRAP, &Act, NULL);
|
|---|
| 233 | # ifdef SIGEMT
|
|---|
| 234 | sigaction(SIGEMT, &Act, NULL);
|
|---|
| 235 | # endif
|
|---|
| 236 | sigaction(SIGFPE, &Act, NULL);
|
|---|
| 237 | sigaction(SIGBUS, &Act, NULL);
|
|---|
| 238 | sigaction(SIGSEGV, &Act, NULL);
|
|---|
| 239 |
|
|---|
| 240 | #else
|
|---|
| 241 | /** @todo Implement this using structured exception handling on Windows and
|
|---|
| 242 | * OS/2. */
|
|---|
| 243 | #endif
|
|---|
| 244 |
|
|---|
| 245 | /*
|
|---|
| 246 | * The tests.
|
|---|
| 247 | */
|
|---|
| 248 | RTTestBanner(hTest);
|
|---|
| 249 | TST_XCPT(NullPtrRead, X86_XCPT_PF, 0);
|
|---|
| 250 | TST_XCPT(NullPtrWrite, X86_XCPT_PF, 0);
|
|---|
| 251 | if (fRawMode)
|
|---|
| 252 | {
|
|---|
| 253 | TST_XCPT(SysEnter, X86_XCPT_GP, 0);
|
|---|
| 254 | TST_XCPT(SysCall, X86_XCPT_UD, 0);
|
|---|
| 255 | }
|
|---|
| 256 |
|
|---|
| 257 | /*
|
|---|
| 258 | * Epilog.
|
|---|
| 259 | */
|
|---|
| 260 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 261 | }
|
|---|
| 262 |
|
|---|
