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|
/* $Id: tstLdr-4.cpp $ */
/** @file
* IPRT - Testcase for RTLdrOpen using ldrLdrObjR0.r0.
*/
/*
* Copyright (C) 2006-2023 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/ldr.h>
#include <iprt/alloc.h>
#include <iprt/log.h>
#include <iprt/stream.h>
#include <iprt/assert.h>
#include <iprt/param.h>
#include <iprt/path.h>
#include <iprt/err.h>
#include <iprt/string.h>
#include <iprt/test.h>
#include <VBox/sup.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static RTTEST g_hTest;
static SUPGLOBALINFOPAGE g_MyGip = { SUPGLOBALINFOPAGE_MAGIC, SUPGLOBALINFOPAGE_VERSION, SUPGIPMODE_INVARIANT_TSC, 42 };
static PSUPGLOBALINFOPAGE g_pMyGip = &g_MyGip;
extern "C" DECLEXPORT(int) DisasmTest1(void);
static DECLCALLBACK(int) testEnumSegment(RTLDRMOD hLdrMod, PCRTLDRSEG pSeg, void *pvUser)
{
uint32_t *piSeg = (uint32_t *)pvUser;
RTPrintf(" Seg#%02u: %RTptr LB %RTptr %s\n"
" link=%RTptr LB %RTptr align=%RTptr fProt=%#x offFile=%RTfoff\n"
, *piSeg, pSeg->RVA, pSeg->cbMapped, pSeg->pszName,
pSeg->LinkAddress, pSeg->cb, pSeg->Alignment, pSeg->fProt, pSeg->offFile);
if (pSeg->RVA != NIL_RTLDRADDR)
{
RTTESTI_CHECK(pSeg->cbMapped != NIL_RTLDRADDR);
RTTESTI_CHECK(pSeg->cbMapped >= pSeg->cb);
}
else
{
RTTESTI_CHECK(pSeg->cbMapped == NIL_RTLDRADDR);
}
/*
* Do some address conversion tests:
*/
if (pSeg->cbMapped != NIL_RTLDRADDR)
{
/* RTLdrRvaToSegOffset: */
uint32_t iSegConv = ~(uint32_t)42;
RTLDRADDR offSegConv = ~(RTLDRADDR)22;
int rc = RTLdrRvaToSegOffset(hLdrMod, pSeg->RVA, &iSegConv, &offSegConv);
if (RT_FAILURE(rc))
RTTestIFailed("RTLdrRvaToSegOffset failed on Seg #%u / RVA %#RTptr: %Rrc", *piSeg, pSeg->RVA, rc);
else if (iSegConv != *piSeg || offSegConv != 0)
RTTestIFailed("RTLdrRvaToSegOffset on Seg #%u / RVA %#RTptr returned: iSegConv=%#x offSegConv=%RTptr, expected %#x and 0",
*piSeg, pSeg->RVA, iSegConv, offSegConv, *piSeg);
/* RTLdrSegOffsetToRva: */
RTLDRADDR uRvaConv = ~(RTLDRADDR)22;
rc = RTLdrSegOffsetToRva(hLdrMod, *piSeg, 0, &uRvaConv);
if (RT_FAILURE(rc))
RTTestIFailed("RTLdrSegOffsetToRva failed on Seg #%u / off 0: %Rrc", *piSeg, rc);
else if (uRvaConv != pSeg->RVA)
RTTestIFailed("RTLdrSegOffsetToRva on Seg #%u / off 0 returned: %RTptr, expected %RTptr", *piSeg, uRvaConv, pSeg->RVA);
/* RTLdrLinkAddressToRva: */
uRvaConv = ~(RTLDRADDR)22;
rc = RTLdrLinkAddressToRva(hLdrMod, pSeg->LinkAddress, &uRvaConv);
if (RT_FAILURE(rc))
RTTestIFailed("RTLdrLinkAddressToRva failed on Seg #%u / %RTptr: %Rrc", *piSeg, pSeg->LinkAddress, rc);
else if (uRvaConv != pSeg->RVA)
RTTestIFailed("RTLdrLinkAddressToRva on Seg #%u / %RTptr returned: %RTptr, expected %RTptr",
*piSeg, pSeg->LinkAddress, uRvaConv, pSeg->RVA);
/* RTLdrLinkAddressToSegOffset: */
iSegConv = ~(uint32_t)42;
offSegConv = ~(RTLDRADDR)22;
rc = RTLdrLinkAddressToSegOffset(hLdrMod, pSeg->LinkAddress, &iSegConv, &offSegConv);
if (RT_FAILURE(rc))
RTTestIFailed("RTLdrLinkAddressToSegOffset failed on Seg #%u / %#RTptr: %Rrc", *piSeg, pSeg->LinkAddress, rc);
else if (iSegConv != *piSeg || offSegConv != 0)
RTTestIFailed("RTLdrLinkAddressToSegOffset on Seg #%u / %#RTptr returned: iSegConv=%#x offSegConv=%RTptr, expected %#x and 0",
*piSeg, pSeg->LinkAddress, iSegConv, offSegConv, *piSeg);
}
*piSeg += 1;
RT_NOREF(hLdrMod);
return VINF_SUCCESS;
}
/**
* Resolve an external symbol during RTLdrGetBits().
*
* @returns iprt status code.
* @param hLdrMod The loader module handle.
* @param pszModule Module name.
* @param pszSymbol Symbol name, NULL if uSymbol should be used.
* @param uSymbol Symbol ordinal, ~0 if pszSymbol should be used.
* @param pValue Where to store the symbol value (address).
* @param pvUser User argument.
*/
static DECLCALLBACK(int) testGetImport(RTLDRMOD hLdrMod, const char *pszModule, const char *pszSymbol, unsigned uSymbol, RTUINTPTR *pValue, void *pvUser)
{
RT_NOREF4(hLdrMod, pszModule, uSymbol, pvUser);
if ( !strcmp(pszSymbol, "RTAssertMsg1Weak") || !strcmp(pszSymbol, "_RTAssertMsg1Weak"))
*pValue = (uintptr_t)RTAssertMsg1Weak;
else if (!strcmp(pszSymbol, "RTAssertMsg2Weak") || !strcmp(pszSymbol, "_RTAssertMsg2Weak"))
*pValue = (uintptr_t)RTAssertMsg1Weak;
else if (!strcmp(pszSymbol, "RTAssertMsg1") || !strcmp(pszSymbol, "_RTAssertMsg1"))
*pValue = (uintptr_t)RTAssertMsg1;
else if (!strcmp(pszSymbol, "RTAssertMsg2") || !strcmp(pszSymbol, "_RTAssertMsg2"))
*pValue = (uintptr_t)RTAssertMsg2;
else if (!strcmp(pszSymbol, "RTAssertMsg2V") || !strcmp(pszSymbol, "_RTAssertMsg2V"))
*pValue = (uintptr_t)RTAssertMsg2V;
else if (!strcmp(pszSymbol, "RTAssertMayPanic") || !strcmp(pszSymbol, "_RTAssertMayPanic"))
*pValue = (uintptr_t)RTAssertMayPanic;
else if (!strcmp(pszSymbol, "RTLogDefaultInstanceEx") || !strcmp(pszSymbol, "RTLogDefaultInstanceEx"))
*pValue = (uintptr_t)RTLogDefaultInstanceEx;
else if (!strcmp(pszSymbol, "RTLogLoggerExV") || !strcmp(pszSymbol, "_RTLogLoggerExV"))
*pValue = (uintptr_t)RTLogLoggerExV;
else if (!strcmp(pszSymbol, "RTLogPrintfV") || !strcmp(pszSymbol, "_RTLogPrintfV"))
*pValue = (uintptr_t)RTLogPrintfV;
else if (!strcmp(pszSymbol, "RTR0AssertPanicSystem")|| !strcmp(pszSymbol, "_RTR0AssertPanicSystem"))
*pValue = (uintptr_t)0;
else if (!strcmp(pszSymbol, "MyPrintf") || !strcmp(pszSymbol, "_MyPrintf"))
*pValue = (uintptr_t)RTPrintf;
else if (!strcmp(pszSymbol, "SUPR0Printf") || !strcmp(pszSymbol, "_SUPR0Printf"))
*pValue = (uintptr_t)RTPrintf;
else if (!strcmp(pszSymbol, "SUPR0PrintfV") || !strcmp(pszSymbol, "_SUPR0PrintfV"))
*pValue = (uintptr_t)RTPrintfV;
else if (!strcmp(pszSymbol, "SomeImportFunction") || !strcmp(pszSymbol, "_SomeImportFunction"))
*pValue = (uintptr_t)0;
else if (!strcmp(pszSymbol, "g_pSUPGlobalInfoPage") || !strcmp(pszSymbol, "_g_pSUPGlobalInfoPage"))
*pValue = (uintptr_t)&g_pMyGip;
else if (!strcmp(pszSymbol, "g_SUPGlobalInfoPage") || !strcmp(pszSymbol, "_g_SUPGlobalInfoPage"))
*pValue = (uintptr_t)&g_MyGip;
else
{
RTPrintf("tstLdr-4: Unexpected import '%s'!\n", pszSymbol);
return VERR_SYMBOL_NOT_FOUND;
}
return VINF_SUCCESS;
}
/**
* One test iteration with one file.
*
* The test is very simple, we load the file three times
* into two different regions. The first two into each of the
* regions the for compare usage. The third is loaded into one
* and then relocated between the two and other locations a few times.
*
* @param pszFilename The file to load the mess with.
*/
static void testLdrOne(const char *pszFilename)
{
RTTestSub(g_hTest, RTPathFilename(pszFilename));
size_t cbImage = 0;
struct Load
{
RTLDRMOD hLdrMod;
void *pvBits;
size_t cbBits;
const char *pszName;
} aLoads[6] =
{
{ NULL, NULL, 0, "foo" },
{ NULL, NULL, 0, "bar" },
{ NULL, NULL, 0, "foobar" },
};
unsigned i;
int rc;
/*
* Load them.
*/
for (i = 0; i < RT_ELEMENTS(aLoads); i++)
{
rc = RTLdrOpen(pszFilename, 0, RTLDRARCH_WHATEVER, &aLoads[i].hLdrMod);
if (RT_FAILURE(rc))
{
RTTestIFailed("tstLdr-4: Failed to open '%s'/%d, rc=%Rrc. aborting test.", pszFilename, i, rc);
Assert(aLoads[i].hLdrMod == NIL_RTLDRMOD);
break;
}
/* size it */
size_t cb = RTLdrSize(aLoads[i].hLdrMod);
if (cbImage && cb != cbImage)
{
RTTestIFailed("tstLdr-4: Size mismatch '%s'/%d. aborting test.", pszFilename, i);
break;
}
aLoads[i].cbBits = cbImage = cb;
/* Allocate bits. */
aLoads[i].pvBits = RTMemPageAlloc(cb);
if (!aLoads[i].pvBits)
{
RTTestIFailed("Out of memory '%s'/%d cbImage=%d. aborting test.", pszFilename, i, cbImage);
break;
}
rc = RTMemProtect(aLoads[i].pvBits, cb, RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC);
if (RT_FAILURE(rc))
{
RTTestIFailed("RTMemProtect/RWX '%s'/%d cbImage=%d, %Rrc. aborting test.", pszFilename, i, cbImage, rc);
break;
}
/* Get the bits. */
rc = RTLdrGetBits(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits, testGetImport, NULL);
if (RT_FAILURE(rc))
{
RTTestIFailed("Failed to get bits for '%s'/%d, rc=%Rrc. aborting test", pszFilename, i, rc);
break;
}
}
/*
* Execute the code.
*/
if (!RTTestSubErrorCount(g_hTest))
{
for (i = 0; i < RT_ELEMENTS(aLoads); i += 1)
{
/* VERR_ELF_EXE_NOT_SUPPORTED in the previous loop? */
if (!aLoads[i].hLdrMod)
continue;
/* get the pointer. */
RTUINTPTR Value;
rc = RTLdrGetSymbolEx(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits,
UINT32_MAX, "DisasmTest1", &Value);
if (rc == VERR_SYMBOL_NOT_FOUND)
rc = RTLdrGetSymbolEx(aLoads[i].hLdrMod, aLoads[i].pvBits, (uintptr_t)aLoads[i].pvBits,
UINT32_MAX, "_DisasmTest1", &Value);
if (RT_FAILURE(rc))
{
RTTestIFailed("Failed to get symbol \"DisasmTest1\" from load #%d: %Rrc", i, rc);
break;
}
typedef DECLCALLBACKPTR(int, PFNDISASMTEST1,(void));
PFNDISASMTEST1 pfnDisasmTest1 = (PFNDISASMTEST1)(uintptr_t)Value;
RTPrintf("tstLdr-4: pfnDisasmTest1=%p / add-symbol-file %s %#p\n", pfnDisasmTest1, pszFilename, aLoads[i].pvBits);
uint32_t iSeg = 0;
RTLdrEnumSegments(aLoads[i].hLdrMod, testEnumSegment, &iSeg);
/* call the test function. */
rc = pfnDisasmTest1();
if (rc)
RTTestIFailed("load #%d Test1 -> %#x", i, rc);
/* While we're here, check a couple of RTLdrQueryProp calls too */
void *pvBits = aLoads[i].pvBits;
for (unsigned iBits = 0; iBits < 2; iBits++, pvBits = NULL)
{
union
{
char szName[127];
} uBuf;
rc = RTLdrQueryPropEx(aLoads[i].hLdrMod, RTLDRPROP_INTERNAL_NAME, aLoads[i].pvBits,
uBuf.szName, sizeof(uBuf.szName), NULL);
if (RT_SUCCESS(rc))
RTPrintf("tstLdr-4: internal name #%d: '%s'\n", i, uBuf.szName);
else if (rc != VERR_NOT_FOUND && rc != VERR_NOT_SUPPORTED)
RTPrintf("tstLdr-4: internal name #%d failed: %Rrc\n", i, rc);
}
}
}
/*
* Clean up.
*/
for (i = 0; i < RT_ELEMENTS(aLoads); i++)
{
if (aLoads[i].pvBits)
{
RTMemProtect(aLoads[i].pvBits, aLoads[i].cbBits, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
RTMemPageFree(aLoads[i].pvBits, aLoads[i].cbBits);
}
if (aLoads[i].hLdrMod)
{
rc = RTLdrClose(aLoads[i].hLdrMod);
if (RT_FAILURE(rc))
RTTestIFailed("Failed to close '%s' i=%d, rc=%Rrc.", pszFilename, i, rc);
}
}
}
int main()
{
RTEXITCODE rcExit = RTTestInitAndCreate("tstLdr-4", &g_hTest);
if (rcExit != RTEXITCODE_SUCCESS)
return rcExit;
/*
* Sanity check.
*/
int rc = DisasmTest1();
if (rc == 0)
{
/*
* Execute the test.
*/
char szPath[RTPATH_MAX];
rc = RTPathExecDir(szPath, sizeof(szPath) - sizeof("/tstLdrObjR0.r0"));
if (RT_SUCCESS(rc))
{
strcat(szPath, "/tstLdrObjR0.r0");
testLdrOne(szPath);
}
else
RTTestIFailed("RTPathExecDir -> %Rrc", rc);
}
else
RTTestIFailed("FATAL ERROR - DisasmTest1 is buggy: rc=%#x", rc);
return RTTestSummaryAndDestroy(g_hTest);
}
|
