1 files changed, 134 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/ldrNative-posix.cpp b/src/VBox/Runtime/r3/posix/ldrNative-posix.cpp
new file mode 100644
index 00000000..a17759f0
--- /dev/null
+++ b/src/VBox/Runtime/r3/posix/ldrNative-posix.cpp
@@ -0,0 +1,134 @@
+/* $Id: ldrNative-posix.cpp $ */
+/** @file
+ * IPRT - Binary Image Loader, POSIX native.
+ */
+
+/*
+ * Copyright (C) 2006-2019 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 <dlfcn.h>
+
+#include <iprt/ldr.h>
+#include <iprt/assert.h>
+#include <iprt/path.h>
+#include <iprt/alloca.h>
+#include <iprt/string.h>
+#include <iprt/err.h>
+#include <iprt/log.h>
+#include "internal/ldr.h"
+
+
+DECLHIDDEN(int) rtldrNativeLoad(const char *pszFilename, uintptr_t *phHandle, uint32_t fFlags, PRTERRINFO pErrInfo)
+{
+    /*
+     * Do we need to add an extension?
+     */
+    if (!RTPathHasSuffix(pszFilename) && !(fFlags & RTLDRLOAD_FLAGS_NO_SUFFIX))
+    {
+#if defined(RT_OS_OS2) || defined(RT_OS_WINDOWS)
+        static const char s_szSuff[] = ".DLL";
+#elif defined(RT_OS_L4)
+        static const char s_szSuff[] = ".s.so";
+#elif defined(RT_OS_DARWIN)
+        static const char s_szSuff[] = ".dylib";
+#else
+        static const char s_szSuff[] = ".so";
+#endif
+        size_t cch = strlen(pszFilename);
+        char *psz = (char *)alloca(cch + sizeof(s_szSuff));
+        if (!psz)
+            return RTErrInfoSet(pErrInfo, VERR_NO_MEMORY, "alloca failed");
+        memcpy(psz, pszFilename, cch);
+        memcpy(psz + cch, s_szSuff, sizeof(s_szSuff));
+        pszFilename = psz;
+    }
+
+    /*
+     * Attempt load.
+     */
+    int fFlagsNative = RTLD_NOW;
+    if (fFlags & RTLDRLOAD_FLAGS_GLOBAL)
+        fFlagsNative |= RTLD_GLOBAL;
+    else
+        fFlagsNative |= RTLD_LOCAL;
+    void *pvMod = dlopen(pszFilename, fFlagsNative);
+    if (pvMod)
+    {
+        *phHandle = (uintptr_t)pvMod;
+        return VINF_SUCCESS;
+    }
+
+    const char *pszDlError = dlerror();
+    RTErrInfoSet(pErrInfo, VERR_FILE_NOT_FOUND, pszDlError);
+    LogRel(("rtldrNativeLoad: dlopen('%s', RTLD_NOW | RTLD_LOCAL) failed: %s\n", pszFilename, pszDlError));
+    return VERR_FILE_NOT_FOUND;
+}
+
+
+DECLCALLBACK(int) rtldrNativeGetSymbol(PRTLDRMODINTERNAL pMod, const char *pszSymbol, void **ppvValue)
+{
+    PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
+#ifdef RT_OS_OS2
+    /* Prefix the symbol with an underscore (assuming __cdecl/gcc-default). */
+    size_t cch = strlen(pszSymbol);
+    char *psz = (char *)alloca(cch + 2);
+    psz[0] = '_';
+    memcpy(psz + 1, pszSymbol, cch + 1);
+    pszSymbol = psz;
+#endif
+    *ppvValue = dlsym((void *)pModNative->hNative, pszSymbol);
+    if (*ppvValue)
+        return VINF_SUCCESS;
+    return VERR_SYMBOL_NOT_FOUND;
+}
+
+
+DECLCALLBACK(int) rtldrNativeClose(PRTLDRMODINTERNAL pMod)
+{
+    PRTLDRMODNATIVE pModNative = (PRTLDRMODNATIVE)pMod;
+#ifdef __SANITIZE_ADDRESS__
+    /* If we are compiled with enabled address sanitizer (gcc/llvm), don't
+     * unload the module to prevent <unknown module> in the stack trace */
+    pModNative->fFlags |= RTLDRLOAD_FLAGS_NO_UNLOAD;
+#endif
+    if (   (pModNative->fFlags & RTLDRLOAD_FLAGS_NO_UNLOAD)
+        || !dlclose((void *)pModNative->hNative))
+    {
+        pModNative->hNative = (uintptr_t)0;
+        return VINF_SUCCESS;
+    }
+    Log(("rtldrNativeFree: dlclose(%p) failed: %s\n", pModNative->hNative, dlerror()));
+    return VERR_GENERAL_FAILURE;
+}
+
+
+DECLHIDDEN(int) rtldrNativeLoadSystem(const char *pszFilename, const char *pszExt, uint32_t fFlags, PRTLDRMOD phLdrMod)
+{
+    RT_NOREF_PV(pszFilename); RT_NOREF_PV(pszExt); RT_NOREF_PV(fFlags); RT_NOREF_PV(phLdrMod);
+    /** @todo implement this in some sensible fashion. */
+    return VERR_NOT_SUPPORTED;
+}
+