Make errno a thread-local variable.

errno is supposed to be thread local and we do that here in a rather
makeshift way by implementing a function that returns a pointer to
the __errno variable in the thread block.

If more serious TLS is required, perhaps it would be worthwhile
implementing it using the linker and the "__thread" storage attribute.
That's a bit overkill just for this. I'm also not liking what I saw
the compiler producing.

Change-Id: I03bc0bd6a89f6e3d6bae7653284ee01054614f9a
Reviewed-on: http://gerrit.rockbox.org/803
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/apps/plugin.c b/apps/plugin.c
index 93779d7a6c..4bed707c11 100644
--- a/apps/plugin.c
+++ b/apps/plugin.c
@@ -684,7 +684,7 @@ static const struct plugin_api rockbox_api = {
 
     /* misc */
 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
-    &errno,
+    __errno,
 #endif
     srand,
     rand,