Move m68k from ports to libc

1 files changed, 69 insertions, 0 deletions

diff --git a/sysdeps/m68k/tls-macros.h b/sysdeps/m68k/tls-macros.h
new file mode 100644
index 0000000000..84401d234a
--- /dev/null
+++ b/sysdeps/m68k/tls-macros.h
@@ -0,0 +1,69 @@
+/* Macros for accessing thread-local storage.  m68k version.
+   Copyright (C) 2010-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TLS_GD(x)							\
+  ({									\
+    void *__result;							\
+    extern void *__tls_get_addr (void *);				\
+									\
+    asm ("movel #_GLOBAL_OFFSET_TABLE_@GOTPC, %0\n\t"			\
+	 "lea (-6, %%pc, %0), %0\n\t"					\
+	 "lea " #x "@TLSGD(%0), %0"					\
+	 : "=&a" (__result));						\
+    (int *) __tls_get_addr (__result); })
+
+#define TLS_LD(x)							\
+  ({									\
+    char *__tp;								\
+    int __offset;							\
+    extern void *__tls_get_addr (void *);				\
+									\
+    asm ("movel #_GLOBAL_OFFSET_TABLE_@GOTPC, %0\n\t"			\
+	 "lea (-6, %%pc, %0), %0\n\t"					\
+	 "lea " #x "@TLSLDM(%0), %0"					\
+	 : "=&a" (__tp));						\
+    __tp = (char *) __tls_get_addr (__tp);				\
+    asm ("movel #" #x "@TLSLDO, %0"					\
+	 : "=a" (__offset));						\
+    (int *) (__tp + __offset); })
+
+#define TLS_IE(x)							\
+  ({									\
+    char *__tp;								\
+    int __offset;							\
+    extern void * __m68k_read_tp (void);				\
+									\
+    __tp = (char *) __m68k_read_tp ();					\
+    asm ("movel #_GLOBAL_OFFSET_TABLE_@GOTPC, %0\n\t"			\
+	 "lea (-6, %%pc, %0), %0\n\t"					\
+	 "movel " #x "@TLSIE(%0), %0"					\
+	 : "=&a" (__offset));						\
+    (int *) (__tp + __offset); })
+
+#define TLS_LE(x)							\
+  ({									\
+    char *__tp;								\
+    int __offset;							\
+    extern void * __m68k_read_tp (void);				\
+									\
+    __tp = (char *) __m68k_read_tp ();					\
+    asm ("movel #" #x "@TLSLE, %0"					\
+	 : "=a" (__offset));						\
+    (int *) (__tp + __offset); })
+