| 1 | /* $Id: tstDisasm-1.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VBox disassembler - Test application
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2019 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 |
|
|---|
| 18 |
|
|---|
| 19 | /*********************************************************************************************************************************
|
|---|
| 20 | * Header Files *
|
|---|
| 21 | *********************************************************************************************************************************/
|
|---|
| 22 | #include <VBox/dis.h>
|
|---|
| 23 | #include <iprt/test.h>
|
|---|
| 24 | #include <iprt/ctype.h>
|
|---|
| 25 | #include <iprt/string.h>
|
|---|
| 26 | #include <iprt/errcore.h>
|
|---|
| 27 | #include <iprt/time.h>
|
|---|
| 28 |
|
|---|
| 29 |
|
|---|
| 30 | DECLASM(int) TestProc32(void);
|
|---|
| 31 | DECLASM(int) TestProc32_EndProc(void);
|
|---|
| 32 | #ifndef RT_OS_OS2
|
|---|
| 33 | DECLASM(int) TestProc64(void);
|
|---|
| 34 | DECLASM(int) TestProc64_EndProc(void);
|
|---|
| 35 | #endif
|
|---|
| 36 | //uint8_t aCode16[] = { 0x66, 0x67, 0x89, 0x07 };
|
|---|
| 37 |
|
|---|
| 38 | static void testDisas(const char *pszSub, uint8_t const *pabInstrs, uintptr_t uEndPtr, DISCPUMODE enmDisCpuMode)
|
|---|
| 39 | {
|
|---|
| 40 | RTTestISub(pszSub);
|
|---|
| 41 | size_t const cbInstrs = uEndPtr - (uintptr_t)pabInstrs;
|
|---|
| 42 | for (size_t off = 0; off < cbInstrs;)
|
|---|
| 43 | {
|
|---|
| 44 | uint32_t const cErrBefore = RTTestIErrorCount();
|
|---|
| 45 | uint32_t cb = 1;
|
|---|
| 46 | DISSTATE Dis;
|
|---|
| 47 | char szOutput[256] = {0};
|
|---|
| 48 | int rc = DISInstrToStr(&pabInstrs[off], enmDisCpuMode, &Dis, &cb, szOutput, sizeof(szOutput));
|
|---|
| 49 |
|
|---|
| 50 | RTTESTI_CHECK_RC(rc, VINF_SUCCESS);
|
|---|
| 51 | RTTESTI_CHECK(cb == Dis.cbInstr);
|
|---|
| 52 | RTTESTI_CHECK(cb > 0);
|
|---|
| 53 | RTTESTI_CHECK(cb <= 16);
|
|---|
| 54 | RTStrStripR(szOutput);
|
|---|
| 55 | RTTESTI_CHECK(szOutput[0]);
|
|---|
| 56 | if (szOutput[0])
|
|---|
| 57 | {
|
|---|
| 58 | char *pszBytes = strchr(szOutput, '[');
|
|---|
| 59 | RTTESTI_CHECK(pszBytes);
|
|---|
| 60 | if (pszBytes)
|
|---|
| 61 | {
|
|---|
| 62 | RTTESTI_CHECK(pszBytes[-1] == ' ');
|
|---|
| 63 | RTTESTI_CHECK(RT_C_IS_XDIGIT(pszBytes[1]));
|
|---|
| 64 | RTTESTI_CHECK(pszBytes[cb * 3] == ']');
|
|---|
| 65 | RTTESTI_CHECK(pszBytes[cb * 3 + 1] == ' ');
|
|---|
| 66 |
|
|---|
| 67 | size_t cch = strlen(szOutput);
|
|---|
| 68 | RTTESTI_CHECK(szOutput[cch - 1] != ',');
|
|---|
| 69 | }
|
|---|
| 70 | }
|
|---|
| 71 | if (cErrBefore != RTTestIErrorCount())
|
|---|
| 72 | RTTestIFailureDetails("rc=%Rrc, off=%#x (%u) cbInstr=%u enmDisCpuMode=%d\n",
|
|---|
| 73 | rc, off, off, Dis.cbInstr, enmDisCpuMode);
|
|---|
| 74 | RTTestIPrintf(RTTESTLVL_ALWAYS, "%s\n", szOutput);
|
|---|
| 75 |
|
|---|
| 76 | /* Check with size-only. */
|
|---|
| 77 | uint32_t cbOnly = 1;
|
|---|
| 78 | DISSTATE DisOnly;
|
|---|
| 79 | rc = DISInstrWithPrefetchedBytes((uintptr_t)&pabInstrs[off], enmDisCpuMode, 0 /*fFilter - none */,
|
|---|
| 80 | Dis.abInstr, Dis.cbCachedInstr, NULL, NULL, &DisOnly, &cbOnly);
|
|---|
| 81 |
|
|---|
| 82 | RTTESTI_CHECK_RC(rc, VINF_SUCCESS);
|
|---|
| 83 | RTTESTI_CHECK(cbOnly == DisOnly.cbInstr);
|
|---|
| 84 | RTTESTI_CHECK_MSG(cbOnly == cb, ("%#x vs %#x\n", cbOnly, cb));
|
|---|
| 85 |
|
|---|
| 86 | off += cb;
|
|---|
| 87 | }
|
|---|
| 88 | }
|
|---|
| 89 |
|
|---|
| 90 |
|
|---|
| 91 | static DECLCALLBACK(int) testReadBytes(PDISSTATE pDis, uint8_t offInstr, uint8_t cbMinRead, uint8_t cbMaxRead)
|
|---|
| 92 | {
|
|---|
| 93 | RT_NOREF1(cbMinRead);
|
|---|
| 94 | memcpy(&pDis->abInstr[offInstr], (void *)((uintptr_t)pDis->uInstrAddr + offInstr), cbMaxRead);
|
|---|
| 95 | pDis->cbCachedInstr = offInstr + cbMaxRead;
|
|---|
| 96 | return VINF_SUCCESS;
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
| 99 |
|
|---|
| 100 | static void testPerformance(const char *pszSub, uint8_t const *pabInstrs, uintptr_t uEndPtr, DISCPUMODE enmDisCpuMode)
|
|---|
| 101 | {
|
|---|
| 102 | RTTestISubF("Performance - %s", pszSub);
|
|---|
| 103 |
|
|---|
| 104 | size_t const cbInstrs = uEndPtr - (uintptr_t)pabInstrs;
|
|---|
| 105 | uint64_t cInstrs = 0;
|
|---|
| 106 | uint64_t nsStart = RTTimeNanoTS();
|
|---|
| 107 | for (uint32_t i = 0; i < _512K; i++) /* the samples are way to small. :-) */
|
|---|
| 108 | {
|
|---|
| 109 | for (size_t off = 0; off < cbInstrs; cInstrs++)
|
|---|
| 110 | {
|
|---|
| 111 | uint32_t cb = 1;
|
|---|
| 112 | DISSTATE Dis;
|
|---|
| 113 | DISInstrWithReader((uintptr_t)&pabInstrs[off], enmDisCpuMode, testReadBytes, NULL, &Dis, &cb);
|
|---|
| 114 | off += cb;
|
|---|
| 115 | }
|
|---|
| 116 | }
|
|---|
| 117 | uint64_t cNsElapsed = RTTimeNanoTS() - nsStart;
|
|---|
| 118 |
|
|---|
| 119 | RTTestIValueF(cNsElapsed, RTTESTUNIT_NS, "%s-Total", pszSub);
|
|---|
| 120 | RTTestIValueF(cNsElapsed / cInstrs, RTTESTUNIT_NS_PER_CALL, "%s-per-instruction", pszSub);
|
|---|
| 121 | }
|
|---|
| 122 |
|
|---|
| 123 | void testTwo(void)
|
|---|
| 124 | {
|
|---|
| 125 | static const struct
|
|---|
| 126 | {
|
|---|
| 127 | DISCPUMODE enmMode;
|
|---|
| 128 | uint8_t abInstr[24];
|
|---|
| 129 | uint8_t cbParam1;
|
|---|
| 130 | uint8_t cbParam2;
|
|---|
| 131 | uint8_t cbParam3;
|
|---|
| 132 | } s_gInstrs[] =
|
|---|
| 133 | {
|
|---|
| 134 | { DISCPUMODE_64BIT, { 0x48, 0xc7, 0x03, 0x00, 0x00, 0x00, 0x00, }, 8, 8, 0, },
|
|---|
| 135 | };
|
|---|
| 136 | for (unsigned i = 0; i < RT_ELEMENTS(s_gInstrs); i++)
|
|---|
| 137 | {
|
|---|
| 138 | uint32_t cb = 1;
|
|---|
| 139 | DISSTATE Dis;
|
|---|
| 140 | int rc;
|
|---|
| 141 | RTTESTI_CHECK_RC(rc = DISInstr(s_gInstrs[i].abInstr, s_gInstrs[i].enmMode, &Dis, &cb), VINF_SUCCESS);
|
|---|
| 142 | if (rc == VINF_SUCCESS)
|
|---|
| 143 | {
|
|---|
| 144 | uint32_t cb2;
|
|---|
| 145 | RTTESTI_CHECK_MSG((cb2 = DISGetParamSize(&Dis, &Dis.Param1)) == s_gInstrs[i].cbParam1,
|
|---|
| 146 | ("%u: %#x vs %#x\n", i , cb2, s_gInstrs[i].cbParam1));
|
|---|
| 147 | RTTESTI_CHECK_MSG((cb2 = DISGetParamSize(&Dis, &Dis.Param2)) == s_gInstrs[i].cbParam2,
|
|---|
| 148 | ("%u: %#x vs %#x (%s)\n", i , cb2, s_gInstrs[i].cbParam2, Dis.pCurInstr->pszOpcode));
|
|---|
| 149 | RTTESTI_CHECK_MSG((cb2 = DISGetParamSize(&Dis, &Dis.Param3)) == s_gInstrs[i].cbParam3,
|
|---|
| 150 | ("%u: %#x vs %#x\n", i , cb2, s_gInstrs[i].cbParam3));
|
|---|
| 151 | }
|
|---|
| 152 | }
|
|---|
| 153 | }
|
|---|
| 154 |
|
|---|
| 155 |
|
|---|
| 156 | int main(int argc, char **argv)
|
|---|
| 157 | {
|
|---|
| 158 | RT_NOREF2(argc, argv);
|
|---|
| 159 | RTTEST hTest;
|
|---|
| 160 | RTEXITCODE rcExit = RTTestInitAndCreate("tstDisasm", &hTest);
|
|---|
| 161 | if (rcExit)
|
|---|
| 162 | return rcExit;
|
|---|
| 163 | RTTestBanner(hTest);
|
|---|
| 164 |
|
|---|
| 165 | static const struct
|
|---|
| 166 | {
|
|---|
| 167 | const char *pszDesc;
|
|---|
| 168 | uint8_t const *pbStart;
|
|---|
| 169 | uintptr_t uEndPtr;
|
|---|
| 170 | DISCPUMODE enmCpuMode;
|
|---|
| 171 | } aSnippets[] =
|
|---|
| 172 | {
|
|---|
| 173 | { "32-bit", (uint8_t const *)(uintptr_t)TestProc32, (uintptr_t)&TestProc32_EndProc, DISCPUMODE_32BIT },
|
|---|
| 174 | { "64-bit", (uint8_t const *)(uintptr_t)TestProc64, (uintptr_t)&TestProc64_EndProc, DISCPUMODE_64BIT },
|
|---|
| 175 | };
|
|---|
| 176 |
|
|---|
| 177 | for (unsigned i = 0; i < RT_ELEMENTS(aSnippets); i++)
|
|---|
| 178 | testDisas(aSnippets[i].pszDesc, aSnippets[i].pbStart, aSnippets[i].uEndPtr, aSnippets[i].enmCpuMode);
|
|---|
| 179 |
|
|---|
| 180 | testTwo();
|
|---|
| 181 |
|
|---|
| 182 | if (RTTestIErrorCount() == 0)
|
|---|
| 183 | {
|
|---|
| 184 | for (unsigned i = 0; i < RT_ELEMENTS(aSnippets); i++)
|
|---|
| 185 | testPerformance(aSnippets[i].pszDesc, aSnippets[i].pbStart, aSnippets[i].uEndPtr, aSnippets[i].enmCpuMode);
|
|---|
| 186 | }
|
|---|
| 187 |
|
|---|
| 188 | return RTTestSummaryAndDestroy(hTest);
|
|---|
| 189 | }
|
|---|
| 190 |
|
|---|
