Files
MSYS2-packages/glib2/2.50-gmodule-cygwin.patch
2018-06-26 10:16:11 +03:00

145 lines
3.3 KiB
Diff

--- origsrc/glib-2.50.3/gmodule/gmodule-win32.c 2017-03-17 13:34:41.869717400 -0500
+++ src/glib-2.50.3/gmodule/gmodule-win32.c 2017-03-17 13:43:50.357304400 -0500
@@ -37,7 +37,20 @@
#ifdef G_WITH_CYGWIN
#include <sys/cygwin.h>
-#endif
+#include <dlfcn.h>
+
+static gchar*
+fetch_dlerror (gboolean replace_null)
+{
+ gchar *msg = dlerror ();
+
+ if (!msg && replace_null)
+ return "unknown dl-error";
+
+ return msg;
+}
+
+#else
static void
set_error (const gchar *format,
@@ -62,20 +75,24 @@ set_error (const gchar *format,
g_free (error);
}
+#endif /* G_WITH_CYGWIN */
+
/* --- functions --- */
static gpointer
_g_module_open (const gchar *file_name,
gboolean bind_lazy,
gboolean bind_local)
{
- HINSTANCE handle;
- wchar_t *wfilename;
#ifdef G_WITH_CYGWIN
- gchar tmp[MAX_PATH];
+ gpointer handle;
- cygwin_conv_to_win32_path(file_name, tmp);
- file_name = tmp;
-#endif
+ handle = dlopen (file_name,
+ (bind_local ? RTLD_LOCAL : RTLD_GLOBAL) | (bind_lazy ? RTLD_LAZY : RTLD_NOW));
+ if (!handle)
+ g_module_set_error (fetch_dlerror (TRUE));
+#else
+ HINSTANCE handle;
+ wchar_t *wfilename;
wfilename = g_utf8_to_utf16 (file_name, -1, NULL, NULL, NULL);
handle = LoadLibraryW (wfilename);
@@ -83,26 +100,44 @@ _g_module_open (const gchar *file_name,
if (!handle)
set_error ("'%s': ", file_name);
+#endif
return handle;
}
+#ifndef G_WITH_CYGWIN
static gint dummy;
static gpointer null_module_handle = &dummy;
+#endif
static gpointer
_g_module_self (void)
{
+#ifdef G_WITH_CYGWIN
+ gpointer handle;
+
+ handle = dlopen (NULL, RTLD_GLOBAL | RTLD_LAZY);
+ if (!handle)
+ g_module_set_error (fetch_dlerror (TRUE));
+
+ return handle;
+#else
return null_module_handle;
+#endif
}
static void
_g_module_close (gpointer handle,
gboolean is_unref)
{
+#ifdef G_WITH_CYGWIN
+ if (dlclose (handle) != 0)
+ g_module_set_error (fetch_dlerror (TRUE));
+#else
if (handle != null_module_handle)
if (!FreeLibrary (handle))
set_error ("");
+#endif
}
static gpointer
@@ -121,8 +156,19 @@ find_in_any_module_using_toolhelp (const
if (Module32First (snapshot, &me32))
{
do {
- if ((p = GetProcAddress (me32.hModule, symbol_name)) != NULL)
- break;
+ if ((p = GetProcAddress (me32.hModule, symbol_name)) != NULL) {
+#ifdef G_WITH_CYGWIN
+ /* if symbol is found in another module, we probably do not want it */
+ ssize_t size = cygwin_conv_path (CCP_WIN_A_TO_POSIX, me32.szExePath, NULL, 0);
+ char *posix = (char *) alloca (size);
+ cygwin_conv_path (CCP_WIN_A_TO_POSIX, me32.szExePath, posix, size);
+ if (g_strstr_len (posix, size, "/usr/lib")
+ || g_strstr_len (posix, size, "/usr/local/lib"))
+ p = NULL;
+ else
+#endif
+ break;
+ }
} while (Module32Next (snapshot, &me32));
}
@@ -148,6 +193,13 @@ _g_module_symbol (gpointer handle,
{
gpointer p;
+#ifdef G_WITH_CYGWIN
+ p = dlsym (handle, symbol_name);
+ if (!p)
+ p = find_in_any_module (symbol_name);
+ if (!p)
+ g_module_set_error (fetch_dlerror (FALSE));
+#else
if (handle == null_module_handle)
{
if ((p = GetProcAddress (GetModuleHandle (NULL), symbol_name)) == NULL)
@@ -158,6 +210,7 @@ _g_module_symbol (gpointer handle,
if (!p)
set_error ("");
+#endif
return p;
}