*
* Copyright 2001-2004 Ximian, Inc.
* Copyright 2004-2009 Novell, Inc.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
*/
#include "config.h"
#include "mono/utils/mono-dl.h"
#include <string.h>
#include <glib.h>
-#ifdef TARGET_WIN32
-#define SOPREFIX ""
-static const char suffixes [][5] = {
- ".dll"
-};
-#elif defined(__APPLE__)
-#define SOPREFIX "lib"
-static const char suffixes [][8] = {
- ".dylib",
- ".so",
- ".bundle"
-};
-#else
-#define SOPREFIX "lib"
-static const char suffixes [][4] = {
- ".so"
-};
-#endif
-
-#ifdef TARGET_WIN32
-
-#include <windows.h>
-#include <psapi.h>
-
-#define SO_HANDLE_TYPE HMODULE
-#define LL_SO_OPEN(file,flags) w32_load_module ((file), (flags))
-#define LL_SO_CLOSE(module) do { if (!(module)->main_module) FreeLibrary ((module)->handle); } while (0)
-#define LL_SO_SYMBOL(module, name) w32_find_symbol ((module), (name))
-#define LL_SO_TRFLAGS(flags) 0
-#define LL_SO_ERROR() w32_dlerror ()
-
-#elif defined (HAVE_DL_LOADER)
-
-#include <dlfcn.h>
-#include <unistd.h>
-
-#ifdef __MACH__
-#include <mach-o/dyld.h>
-#endif
-
-
-#ifndef RTLD_LAZY
-#define RTLD_LAZY 1
-#endif /* RTLD_LAZY */
-
-#define SO_HANDLE_TYPE void*
-#define LL_SO_OPEN(file,flags) dlopen ((file), (flags))
-#define LL_SO_CLOSE(module) dlclose ((module)->handle)
-#define LL_SO_SYMBOL(module, name) dlsym ((module)->handle, (name))
-#define LL_SO_TRFLAGS(flags) convert_flags ((flags))
-#define LL_SO_ERROR() g_strdup (dlerror ())
-
-static int
-convert_flags (int flags)
-{
- int lflags = flags & MONO_DL_LOCAL? 0: RTLD_GLOBAL;
-
- if (flags & MONO_DL_LAZY)
- lflags |= RTLD_LAZY;
- else
- lflags |= RTLD_NOW;
- return lflags;
-}
-
-#else
-/* no dynamic loader supported */
-#define SO_HANDLE_TYPE void*
-#define LL_SO_OPEN(file,flags) NULL
-#define LL_SO_CLOSE(module)
-#define LL_SO_SYMBOL(module, name) NULL
-#define LL_SO_TRFLAGS(flags) (flags)
-#define LL_SO_ERROR() g_strdup ("No support for dynamic loader")
-
-#endif
-
-static GSList *fallback_handlers;
-
struct MonoDlFallbackHandler {
MonoDlFallbackLoad load_func;
MonoDlFallbackSymbol symbol_func;
MonoDlFallbackClose close_func;
void *user_data;
};
-
-struct _MonoDl {
- SO_HANDLE_TYPE handle;
- int main_module;
-
- /* If not NULL, use the methods in MonoDlFallbackHandler instead of the LL_* methods */
- MonoDlFallbackHandler *dl_fallback;
-};
-
-#ifdef TARGET_WIN32
-
-static char*
-w32_dlerror (void)
-{
- char* ret = NULL;
- wchar_t* buf = NULL;
- DWORD code = GetLastError ();
-
- if (FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
- code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buf, 0, NULL))
- {
- ret = g_utf16_to_utf8 (buf, wcslen(buf), NULL, NULL, NULL);
- LocalFree (buf);
- } else {
- g_assert_not_reached ();
- }
- return ret;
-}
-
-static gpointer
-w32_find_symbol (MonoDl *module, const gchar *symbol_name)
-{
- HMODULE *modules;
- DWORD buffer_size = sizeof (HMODULE) * 1024;
- DWORD needed, i;
- gpointer proc = NULL;
-
- /* get the symbol directly from the specified module */
- if (!module->main_module)
- return GetProcAddress (module->handle, symbol_name);
-
- /* get the symbol from the main module */
- proc = GetProcAddress (module->handle, symbol_name);
- if (proc != NULL)
- return proc;
-
- /* get the symbol from the loaded DLLs */
- modules = (HMODULE *) g_malloc (buffer_size);
- if (modules == NULL)
- return NULL;
-
- if (!EnumProcessModules (GetCurrentProcess (), modules,
- buffer_size, &needed)) {
- g_free (modules);
- return NULL;
- }
-
- /* check whether the supplied buffer was too small, realloc, retry */
- if (needed > buffer_size) {
- g_free (modules);
- buffer_size = needed;
- modules = (HMODULE *) g_malloc (buffer_size);
-
- if (modules == NULL)
- return NULL;
-
- if (!EnumProcessModules (GetCurrentProcess (), modules,
- buffer_size, &needed)) {
- g_free (modules);
- return NULL;
- }
- }
-
- for (i = 0; i < needed / sizeof (HANDLE); i++) {
- proc = GetProcAddress (modules [i], symbol_name);
- if (proc != NULL) {
- g_free (modules);
- return proc;
- }
- }
-
- g_free (modules);
- return NULL;
-}
-
-
-static gpointer
-w32_load_module (const char* file, int flags)
-{
- gpointer hModule = NULL;
- if (file) {
- gunichar2* file_utf16 = g_utf8_to_utf16 (file, strlen (file), NULL, NULL, NULL);
- guint last_sem = SetErrorMode (SEM_FAILCRITICALERRORS);
- guint32 last_error = 0;
-
- hModule = LoadLibrary (file_utf16);
- if (!hModule)
- last_error = GetLastError ();
-
- SetErrorMode (last_sem);
- g_free (file_utf16);
-
- if (!hModule)
- SetLastError (last_error);
- } else {
- hModule = GetModuleHandle (NULL);
- }
- return hModule;
-}
-#endif
+static GSList *fallback_handlers;
/*
* read a value string from line with any of the following formats:
if (!endp)
return NULL;
*endp = 0;
- return g_memdup (startp, (endp - startp) + 1);
+ return (char *) g_memdup (startp, (endp - startp) + 1);
}
if (*p == 0)
return NULL;
while (*p && !isspace (*p))
++p;
*p = 0;
- return g_memdup (startp, (p - startp) + 1);
+ return (char *) g_memdup (startp, (p - startp) + 1);
}
/*
MonoDl *module;
void *lib;
MonoDlFallbackHandler *dl_fallback = NULL;
- int lflags = LL_SO_TRFLAGS (flags);
+ int lflags = mono_dl_convert_flags (flags);
if (error_msg)
*error_msg = NULL;
- module = malloc (sizeof (MonoDl));
+ module = (MonoDl *) malloc (sizeof (MonoDl));
if (!module) {
if (error_msg)
*error_msg = g_strdup ("Out of memory");
}
module->main_module = name == NULL? TRUE: FALSE;
-#ifdef PLATFORM_ANDROID
- /* Bionic doesn't support NULL filenames */
- if (!name)
- lib = NULL;
- else
- lib = LL_SO_OPEN (name, lflags);
-#else
- lib = LL_SO_OPEN (name, lflags);
-#endif
+ lib = mono_dl_open_file (name, lflags);
+
if (!lib) {
GSList *node;
for (node = fallback_handlers; node != NULL; node = node->next){
llname = get_dl_name_from_libtool (lname);
g_free (lname);
if (llname) {
- lib = LL_SO_OPEN (llname, lflags);
+ lib = mono_dl_open_file (llname, lflags);
g_free (llname);
}
if (!lib) {
if (error_msg) {
- *error_msg = LL_SO_ERROR ();
+ *error_msg = mono_dl_current_error_string ();
}
free (module);
return NULL;
char *usname = malloc (strlen (name) + 2);
*usname = '_';
strcpy (usname + 1, name);
- sym = LL_SO_SYMBOL (module, usname);
+ sym = mono_dl_lookup_symbol (module, usname);
free (usname);
}
#else
- sym = LL_SO_SYMBOL (module, name);
+ sym = mono_dl_lookup_symbol (module, name);
#endif
}
}
if (symbol)
*symbol = NULL;
- return (module->dl_fallback != NULL) ? err : LL_SO_ERROR ();
+ return (module->dl_fallback != NULL) ? err : mono_dl_current_error_string ();
}
/**
if (dl_fallback->close_func != NULL)
dl_fallback->close_func (module->handle, dl_fallback->user_data);
} else
- LL_SO_CLOSE (module);
+ mono_dl_close_handle (module);
free (module);
}
suffixlen = 0;
} else {
idx--;
- if (idx >= G_N_ELEMENTS (suffixes))
+ if (mono_dl_get_so_suffixes () [idx][0] == '\0')
return NULL;
first_call = FALSE;
- suffix = suffixes [idx];
+ suffix = mono_dl_get_so_suffixes () [idx];
suffixlen = strlen (suffix);
}
- prlen = strlen (SOPREFIX);
- if (prlen && strncmp (name, SOPREFIX, prlen) != 0)
- prefix = SOPREFIX;
+ prlen = strlen (mono_dl_get_so_prefix ());
+ if (prlen && strncmp (name, mono_dl_get_so_prefix (), prlen) != 0)
+ prefix = mono_dl_get_so_prefix ();
else
prefix = "";
g_free (handler);
}
-
-#if defined (HAVE_DL_LOADER)
-
static MonoDl*
try_load (const char *lib_name, char *dir, int flags, char **err)
{
MonoDl *runtime_lib = NULL;
char buf [4096];
int binl;
- binl = readlink ("/proc/self/exe", buf, sizeof (buf)-1);
*error_msg = NULL;
-#ifdef __MACH__
- if (binl == -1) {
- uint32_t bsize = sizeof (buf);
- if (_NSGetExecutablePath (buf, &bsize) == 0) {
- binl = strlen (buf);
- }
- }
-#endif
+ binl = mono_dl_get_executable_path (buf, sizeof (buf));
+
if (binl != -1) {
char *base;
char *resolvedname, *name;
+ char *baseparent = NULL;
buf [binl] = 0;
resolvedname = mono_path_resolve_symlinks (buf);
base = g_path_get_dirname (resolvedname);
name = g_strdup_printf ("%s/.libs", base);
runtime_lib = try_load (lib_name, name, flags, error_msg);
g_free (name);
+ if (!runtime_lib)
+ baseparent = g_path_get_dirname (base);
if (!runtime_lib) {
- char *newbase = g_path_get_dirname (base);
- name = g_strdup_printf ("%s/lib", newbase);
+ name = g_strdup_printf ("%s/lib", baseparent);
runtime_lib = try_load (lib_name, name, flags, error_msg);
g_free (name);
}
#ifdef __MACH__
if (!runtime_lib) {
- char *newbase = g_path_get_dirname (base);
- name = g_strdup_printf ("%s/Libraries", newbase);
+ name = g_strdup_printf ("%s/Libraries", baseparent);
runtime_lib = try_load (lib_name, name, flags, error_msg);
g_free (name);
}
#endif
+ if (!runtime_lib) {
+ name = g_strdup_printf ("%s/profiler/.libs", baseparent);
+ runtime_lib = try_load (lib_name, name, flags, error_msg);
+ g_free (name);
+ }
g_free (base);
g_free (resolvedname);
+ g_free (baseparent);
}
if (!runtime_lib)
runtime_lib = try_load (lib_name, NULL, flags, error_msg);
return runtime_lib;
}
-
-#else
-
-MonoDl*
-mono_dl_open_runtime_lib (const char* lib_name, int flags, char **error_msg)
-{
- return NULL;
-}
-
-#endif
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