Thanks to James Graves <jgraves@deltamobile.com>, we now have

a first pass at getting m68k working.  It may have some problems,
but should now be fairly close.

1 files changed, 214 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/m68k/bits/libc-lock.h b/libc/sysdeps/linux/m68k/bits/libc-lock.h
new file mode 100644
index 000000000..a14cea1aa
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/libc-lock.h
@@ -0,0 +1,214 @@
+/* libc-internal interface for mutex locks.  LinuxThreads version.
+   Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _BITS_LIBC_LOCK_H
+#define _BITS_LIBC_LOCK_H 1
+
+#include <pthread.h>
+
+/* Mutex type.  */
+#ifdef _LIBC
+typedef pthread_mutex_t __libc_lock_t;
+#else
+typedef struct __libc_lock_opaque__ __libc_lock_t;
+#endif
+
+/* Type for key to thread-specific data.  */
+typedef pthread_key_t __libc_key_t;
+
+/* Define a lock variable NAME with storage class CLASS.  The lock must be
+   initialized with __libc_lock_init before it can be used (or define it
+   with __libc_lock_define_initialized, below).  Use `extern' for CLASS to
+   declare a lock defined in another module.  In public structure
+   definitions you must use a pointer to the lock structure (i.e., NAME
+   begins with a `*'), because its storage size will not be known outside
+   of libc.  */
+#define __libc_lock_define(CLASS,NAME) \
+  CLASS __libc_lock_t NAME;
+
+/* Define an initialized lock variable NAME with storage class CLASS.
+
+   For the C library we take a deeper look at the initializer.  For this
+   implementation all fields are initialized to zero.  Therefore we
+   don't initialize the variable which allows putting it into the BSS
+   section.  */
+#define __libc_lock_define_initialized(CLASS,NAME) \
+  CLASS __libc_lock_t NAME;
+
+/* Define an initialized recursive lock variable NAME with storage
+   class CLASS.  */
+#define __libc_lock_define_initialized_recursive(CLASS,NAME) \
+  CLASS __libc_lock_t NAME = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+/* Initialize the named lock variable, leaving it in a consistent, unlocked
+   state.  */
+#define __libc_lock_init(NAME) \
+  (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
+
+/* Same as last but this time we initialize a recursive mutex.  */
+#define __libc_lock_init_recursive(NAME) \
+  do {									      \
+    if (__pthread_mutex_init != NULL)					      \
+      {									      \
+	pthread_mutexattr_t __attr;					      \
+	__pthread_mutexattr_init (&__attr);				      \
+	__pthread_mutexattr_settype (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
+	__pthread_mutex_init (&(NAME), &__attr);			      \
+	__pthread_mutexattr_destroy (&__attr);				      \
+      }									      \
+  } while (0);
+
+/* Finalize the named lock variable, which must be locked.  It cannot be
+   used again until __libc_lock_init is called again on it.  This must be
+   called on a lock variable before the containing storage is reused.  */
+#define __libc_lock_fini(NAME) \
+  (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
+
+/* Finalize recursive named lock.  */
+#define __libc_lock_fini_recursive(NAME) __libc_lock_fini (NAME)
+
+/* Lock the named lock variable.  */
+#define __libc_lock_lock(NAME) \
+  (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
+
+/* Lock the recursive named lock variable.  */
+#define __libc_lock_lock_recursive(NAME) __libc_lock_lock (NAME)
+
+/* Try to lock the named lock variable.  */
+#define __libc_lock_trylock(NAME) \
+  (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0)
+
+/* Try to lock the recursive named lock variable.  */
+#define __libc_lock_trylock_recursive(NAME) __libc_lock_trylock (NAME)
+
+/* Unlock the named lock variable.  */
+#define __libc_lock_unlock(NAME) \
+  (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
+
+/* Unlock the recursive named lock variable.  */
+#define __libc_lock_unlock_recursive(NAME) __libc_lock_unlock (NAME)
+
+
+/* Define once control variable.  */
+#if PTHREAD_ONCE_INIT == 0
+/* Special case for static variables where we can avoid the initialization
+   if it is zero.  */
+# define __libc_once_define(CLASS, NAME) \
+  CLASS pthread_once_t NAME
+#else
+# define __libc_once_define(CLASS, NAME) \
+  CLASS pthread_once_t NAME = PTHREAD_ONCE_INIT
+#endif
+
+/* Call handler iff the first call.  */
+#define __libc_once(ONCE_CONTROL, INIT_FUNCTION) \
+  do {									      \
+    if (__pthread_once != NULL)						      \
+      __pthread_once (&(ONCE_CONTROL), (INIT_FUNCTION));		      \
+    else if ((ONCE_CONTROL) == 0) {					      \
+      INIT_FUNCTION ();							      \
+      (ONCE_CONTROL) = 1;						      \
+    }									      \
+  } while (0)
+
+
+/* Start critical region with cleanup.  */
+#define __libc_cleanup_region_start(FCT, ARG) \
+  { struct _pthread_cleanup_buffer _buffer;				      \
+    int _avail = _pthread_cleanup_push_defer != NULL;			      \
+    if (_avail) {							      \
+      _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG));		      \
+    }
+
+/* End critical region with cleanup.  */
+#define __libc_cleanup_region_end(DOIT) \
+    if (_avail) {							      \
+      _pthread_cleanup_pop_restore (&_buffer, (DOIT));			      \
+    }									      \
+  }
+
+/* Sometimes we have to exit the block in the middle.  */
+#define __libc_cleanup_end(DOIT) \
+    if (_avail) {							      \
+      _pthread_cleanup_pop_restore (&_buffer, (DOIT));			      \
+    }
+
+/* Create thread-specific key.  */
+#define __libc_key_create(KEY, DESTRUCTOR) \
+  (__pthread_key_create != NULL ? __pthread_key_create (KEY, DESTRUCTOR) : 1)
+
+/* Get thread-specific data.  */
+#define __libc_getspecific(KEY) \
+  (__pthread_getspecific != NULL ? __pthread_getspecific (KEY) : NULL)
+
+/* Set thread-specific data.  */
+#define __libc_setspecific(KEY, VALUE) \
+  (__pthread_setspecific != NULL ? __pthread_setspecific (KEY, VALUE) : 0)
+
+
+/* Register handlers to execute before and after `fork'.  */
+#define __libc_atfork(PREPARE, PARENT, CHILD) \
+  (__pthread_atfork != NULL ? __pthread_atfork (PREPARE, PARENT, CHILD) : 0)
+
+
+/* Make the pthread functions weak so that we can elide them from
+   single-threaded processes.  */
+#ifndef __NO_WEAK_PTHREAD_ALIASES
+# ifdef weak_extern
+weak_extern (__pthread_mutex_init)
+weak_extern (__pthread_mutex_destroy)
+weak_extern (__pthread_mutex_lock)
+weak_extern (__pthread_mutex_trylock)
+weak_extern (__pthread_mutex_unlock)
+weak_extern (__pthread_mutexattr_init)
+weak_extern (__pthread_mutexattr_destroy)
+weak_extern (__pthread_mutexattr_settype)
+weak_extern (__pthread_key_create)
+weak_extern (__pthread_setspecific)
+weak_extern (__pthread_getspecific)
+weak_extern (__pthread_once)
+weak_extern (__pthread_initialize)
+weak_extern (__pthread_atfork)
+weak_extern (_pthread_cleanup_push_defer)
+weak_extern (_pthread_cleanup_pop_restore)
+# else
+#  pragma weak __pthread_mutex_init
+#  pragma weak __pthread_mutex_destroy
+#  pragma weak __pthread_mutex_lock
+#  pragma weak __pthread_mutex_trylock
+#  pragma weak __pthread_mutex_unlock
+#  pragma weak __pthread_mutexattr_init
+#  pragma weak __pthread_mutexattr_destroy
+#  pragma weak __pthread_mutexattr_settype
+#  pragma weak __pthread_key_create
+#  pragma weak __pthread_setspecific
+#  pragma weak __pthread_getspecific
+#  pragma weak __pthread_once
+#  pragma weak __pthread_initialize
+#  pragma weak __pthread_atfork
+#  pragma weak _pthread_cleanup_push_defer
+#  pragma weak _pthread_cleanup_pop_restore
+# endif
+#endif
+
+/* We need portable names for some functions.  E.g., when they are
+   used as argument to __libc_cleanup_region_start.  */
+#define __libc_mutex_unlock __pthread_mutex_unlock
+
+#endif	/* bits/libc-lock.h */