mono/utils/mono-dl-posix.c

   1 /*
   2  * mono-dl.c: Interface to the dynamic linker
   3  *
   4  * Author:
   5  *    Mono Team (http://www.mono-project.com)
   6  *
   7  * Copyright 2001-2004 Ximian, Inc.
   8  * Copyright 2004-2009 Novell, Inc.
   9  */
  10 #include <config.h>
  11
  12 #ifdef HAVE_UNISTD_H
  13 #include <unistd.h>
  14 #endif
  15
  16 #if defined(_POSIX_VERSION)
  17
  18 #include "mono/utils/mono-dl.h"
  19 #include "mono/utils/mono-embed.h"
  20 #include "mono/utils/mono-path.h"
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <ctype.h>
  25 #include <string.h>
  26 #include <glib.h>
  27 #include <dlfcn.h>
  28
  29 #if !defined (TARGET_MACH)
  30 const char *
  31 mono_dl_get_so_prefix (void)
  32 {
  33         return "lib";
  34 }
  35 const char **
  36 mono_dl_get_so_suffixes (void)
  37 {
  38         static const char *suffixes[] = {
  39                 ".so",
  40                 "",
  41         };
  42         return suffixes;
  43 }
  44
  45 int
  46 mono_dl_get_executable_path (char *buf, int buflen)
  47 {
  48         return readlink ("/proc/self/exe", buf, buflen - 1);
  49 }
  50 #endif
  51
  52 void *
  53 mono_dl_open_file (const char *file, int flags)
  54 {
  55 #ifdef PLATFORM_ANDROID
  56         /* Bionic doesn't support NULL filenames */
  57         if (!file)
  58                 return NULL;
  59 #endif
  60         return dlopen (file, flags);
  61 }
  62
  63 void
  64 mono_dl_close_handle (MonoDl *module)
  65 {
  66         dlclose (module->handle);
  67 }
  68
  69 void*
  70 mono_dl_lookup_symbol (MonoDl *module, const char *name)
  71 {
  72         return dlsym (module->handle, name);
  73 }
  74
  75 int
  76 mono_dl_convert_flags (int flags)
  77 {
  78         int lflags = flags & MONO_DL_LOCAL? 0: RTLD_GLOBAL;
  79
  80         if (flags & MONO_DL_LAZY)
  81                 lflags |= RTLD_LAZY;
  82         else
  83                 lflags |= RTLD_NOW;
  84         return lflags;
  85 }
  86
  87 char*
  88 mono_dl_current_error_string (void)
  89 {
  90         return g_strdup (dlerror ());
  91 }
  92
  93 #endif