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/* $Id: ldr.cpp $ */
/** @file
* IPRT - Binary Image Loader.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_LDR
#include <iprt/ldr.h>
#include "internal/iprt.h"
#include <iprt/alloc.h>
#include <iprt/string.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/log.h>
#include "internal/ldr.h"
RTDECL(int) RTLdrGetSymbol(RTLDRMOD hLdrMod, const char *pszSymbol, void **ppvValue)
{
LogFlow(("RTLdrGetSymbol: hLdrMod=%RTldrm pszSymbol=%p:{%s} ppvValue=%p\n",
hLdrMod, pszSymbol, pszSymbol, ppvValue));
/*
* Validate input.
*/
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), VERR_INVALID_HANDLE);
AssertMsgReturn(pszSymbol, ("pszSymbol=%p\n", pszSymbol), VERR_INVALID_PARAMETER);
AssertMsgReturn(VALID_PTR(ppvValue), ("ppvValue=%p\n", ppvValue), VERR_INVALID_PARAMETER);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
//AssertMsgReturn(pMod->eState == LDR_STATE_OPENED, ("eState=%d\n", pMod->eState), VERR_WRONG_ORDER);
/*
* Do it.
*/
int rc;
if (pMod->pOps->pfnGetSymbol)
rc = pMod->pOps->pfnGetSymbol(pMod, pszSymbol, ppvValue);
else
{
RTUINTPTR Value = 0;
rc = pMod->pOps->pfnGetSymbolEx(pMod, NULL, 0, UINT32_MAX, pszSymbol, &Value);
if (RT_SUCCESS(rc))
{
*ppvValue = (void *)(uintptr_t)Value;
if ((uintptr_t)*ppvValue != Value)
rc = VERR_BUFFER_OVERFLOW;
}
}
LogFlow(("RTLdrGetSymbol: return %Rrc *ppvValue=%p\n", rc, *ppvValue));
return rc;
}
RT_EXPORT_SYMBOL(RTLdrGetSymbol);
RTDECL(PFNRT) RTLdrGetFunction(RTLDRMOD hLdrMod, const char *pszSymbol)
{
PFNRT pfn;
int rc = RTLdrGetSymbol(hLdrMod, pszSymbol, (void **)&pfn);
if (RT_SUCCESS(rc))
return pfn;
return NULL;
}
RT_EXPORT_SYMBOL(RTLdrGetFunction);
RTDECL(RTLDRFMT) RTLdrGetFormat(RTLDRMOD hLdrMod)
{
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), RTLDRFMT_INVALID);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
return pMod->enmFormat;
}
RT_EXPORT_SYMBOL(RTLdrGetFormat);
RTDECL(RTLDRTYPE) RTLdrGetType(RTLDRMOD hLdrMod)
{
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), RTLDRTYPE_INVALID);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
return pMod->enmType;
}
RT_EXPORT_SYMBOL(RTLdrGetType);
RTDECL(RTLDRENDIAN) RTLdrGetEndian(RTLDRMOD hLdrMod)
{
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), RTLDRENDIAN_INVALID);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
return pMod->enmEndian;
}
RT_EXPORT_SYMBOL(RTLdrGetEndian);
RTDECL(RTLDRARCH) RTLdrGetArch(RTLDRMOD hLdrMod)
{
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), RTLDRARCH_INVALID);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
return pMod->enmArch;
}
RT_EXPORT_SYMBOL(RTLdrGetArch);
RTDECL(int) RTLdrClose(RTLDRMOD hLdrMod)
{
LogFlow(("RTLdrClose: hLdrMod=%RTldrm\n", hLdrMod));
/*
* Validate input.
*/
if (hLdrMod == NIL_RTLDRMOD)
return VINF_SUCCESS;
AssertMsgReturn(rtldrIsValid(hLdrMod), ("hLdrMod=%p\n", hLdrMod), VERR_INVALID_HANDLE);
PRTLDRMODINTERNAL pMod = (PRTLDRMODINTERNAL)hLdrMod;
//AssertMsgReturn(pMod->eState == LDR_STATE_OPENED, ("eState=%d\n", pMod->eState), VERR_WRONG_ORDER);
/*
* Do it.
*/
int rc = pMod->pOps->pfnClose(pMod);
AssertRC(rc);
pMod->eState = LDR_STATE_INVALID;
pMod->u32Magic++;
if (pMod->pReader)
{
rc = pMod->pReader->pfnDestroy(pMod->pReader);
AssertRC(rc);
pMod->pReader = NULL;
}
RTMemFree(pMod);
LogFlow(("RTLdrClose: returns VINF_SUCCESS\n"));
return VINF_SUCCESS;
}
RT_EXPORT_SYMBOL(RTLdrClose);
RTDECL(RTLDRARCH) RTLdrGetHostArch(void)
{
#if defined(RT_ARCH_AMD64)
RTLDRARCH enmArch = RTLDRARCH_AMD64;
#elif defined(RT_ARCH_X86)
RTLDRARCH enmArch = RTLDRARCH_X86_32;
#elif defined(RT_ARCH_ARM) || defined(RT_ARCH_ARM32)
RTLDRARCH enmArch = RTLDRARCH_ARM32;
#elif defined(RT_ARCH_ARM64)
RTLDRARCH enmArch = RTLDRARCH_ARM64;
#else
RTLDRARCH enmArch = RTLDRARCH_WHATEVER;
#endif
return enmArch;
}
RT_EXPORT_SYMBOL(RTLdrGetHostArch);
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