Remove obsolete rtems_gxx_*() implementation

GCC versions prior to 6.1 used a RTEMS thread model based on
rtems_gxx_*() functions. GCC version 6.1 or later uses the
self-contained synchronization objects of Newlib <sys/lock.h> for the
RTEMS thread model.

Remove the obsolete implementation.

Close #3143.

2 files changed, 2 insertions, 82 deletions

diff --git a/cpukit/include/rtems/gxx_wrappers.h b/cpukit/include/rtems/gxx_wrappers.h
deleted file mode 100644
index e462d27d66..0000000000
--- a/cpukit/include/rtems/gxx_wrappers.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/**
- * @file
- *
- * RTEMS threads compatibility routines for libgcc2.
- */
-
-/*
- *  by: Rosimildo da Silva (rdasilva@connecttel.com)
- *
- *  Used ideas from:
- *    W. Eric Norum
- *    Canadian Light Source
- *    University of Saskatchewan
- *    Saskatoon, Saskatchewan, CANADA
- *    eric@cls.usask.ca
- *
- *  Eric sent some e-mail in the rtems-list as a start point for this
- *  module implementation.
- */
-
-#ifndef __GCC_WRAPPERS_h 
-#define __GCC_WRAPPERS_h
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/**
- *  @defgroup GxxWrappersSupport Gxx Wrappers Support
- *
- *  @ingroup libcsupport
- *
- *  @brief RTEMS Threads Compatibility Routines for Libgcc2
- */
-
-/*
- * These typedefs should match with the ones defined in the file
- * gcc/gthr-rtems.h in the gcc distribution.
- */
-typedef void *__gthread_key_t;
-typedef int   __gthread_once_t;
-typedef void *__gthread_mutex_t;
-typedef void *__gthread_recursive_mutex_t;
-
-int rtems_gxx_once(__gthread_once_t *once, void (*func) (void));
-
-int rtems_gxx_key_create (__gthread_key_t *key, void (*dtor) (void *));
-
-int rtems_gxx_key_delete (__gthread_key_t key);
-
-void *rtems_gxx_getspecific(__gthread_key_t key);
-
-int rtems_gxx_setspecific(__gthread_key_t key, const void *ptr);
-
-/*
- * MUTEX support
- */
-void rtems_gxx_mutex_init (__gthread_mutex_t *mutex);
-
-int rtems_gxx_mutex_lock (__gthread_mutex_t *mutex);
-
-int rtems_gxx_mutex_destroy (__gthread_mutex_t *mutex);
-
-int rtems_gxx_mutex_trylock (__gthread_mutex_t *mutex);
-
-int rtems_gxx_mutex_unlock (__gthread_mutex_t *mutex);
-
-void rtems_gxx_recursive_mutex_init(__gthread_recursive_mutex_t *mutex);
-
-int rtems_gxx_recursive_mutex_lock(__gthread_recursive_mutex_t *mutex);
-
-int rtems_gxx_recursive_mutex_trylock(__gthread_recursive_mutex_t *mutex);
-
-int rtems_gxx_recursive_mutex_unlock(__gthread_recursive_mutex_t *mutex);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __GCC_WRAPPERS_h */
diff --git a/cpukit/include/rtems/score/interr.h b/cpukit/include/rtems/score/interr.h
index 65cac29500..4054e21253 100644
--- a/cpukit/include/rtems/score/interr.h
+++ b/cpukit/include/rtems/score/interr.h
@@ -188,8 +188,8 @@ typedef enum {
   /* INTERNAL_ERROR_THREAD_QUEUE_ENQUEUE_FROM_BAD_STATE = 18, */
   /* INTERNAL_ERROR_UNLIMITED_AND_MAXIMUM_IS_0 = 19, */
   /* INTERNAL_ERROR_SHUTDOWN_WHEN_NOT_UP = 20, */
-  INTERNAL_ERROR_GXX_KEY_ADD_FAILED = 21,
-  INTERNAL_ERROR_GXX_MUTEX_INIT_FAILED = 22,
+  /* INTERNAL_ERROR_GXX_KEY_ADD_FAILED = 21, */
+  /* INTERNAL_ERROR_GXX_MUTEX_INIT_FAILED = 22, */
   INTERNAL_ERROR_NO_MEMORY_FOR_HEAP = 23,
   INTERNAL_ERROR_CPU_ISR_INSTALL_VECTOR = 24,
   INTERNAL_ERROR_RESOURCE_IN_USE = 25,