Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 74 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/m68k/sysdep.h b/REORG.TODO/sysdeps/m68k/sysdep.h
new file mode 100644
index 0000000000..008287b8ac
--- /dev/null
+++ b/REORG.TODO/sysdeps/m68k/sysdep.h
@@ -0,0 +1,74 @@
+/* Assembler macros for m68k.
+   Copyright (C) 1998-2017 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 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/>.  */
+
+#include <sysdeps/generic/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+/* Define an entry point visible from C.
+
+   There is currently a bug in gdb which prevents us from specifying
+   incomplete stabs information.  Fake some entries here which specify
+   the current source file.  */
+# define ENTRY(name)							      \
+  .globl C_SYMBOL_NAME(name);						      \
+  .type C_SYMBOL_NAME(name),@function;					      \
+  .p2align 2;								      \
+  C_LABEL(name)								      \
+  cfi_startproc;							      \
+  CALL_MCOUNT
+
+# undef END
+# define END(name)							      \
+  cfi_endproc;								      \
+  .size name,.-name
+
+
+/* If compiled for profiling, call `_mcount' at the start of each function.  */
+# ifdef	PROF
+/* The mcount code relies on a normal frame pointer being on the stack
+   to locate our caller, so push one just for its benefit.  */
+#  define CALL_MCOUNT \
+  move.l %fp, -(%sp);							      \
+  cfi_adjust_cfa_offset (4);  cfi_rel_offset (%a6, 0);			      \
+  move.l %sp, %fp;							      \
+  jbsr JUMPTARGET (_mcount);						      \
+  move.l (%sp)+, %fp;							      \
+  cfi_adjust_cfa_offset (-4); cfi_restore (%a6);
+# else
+#  define CALL_MCOUNT		/* Do nothing.  */
+# endif
+
+# define PSEUDO(name, syscall_name, args)				      \
+  .globl __syscall_error;						      \
+  ENTRY (name)								      \
+    DO_CALL (syscall_name, args);					      \
+    jcc JUMPTARGET(__syscall_error)
+
+# undef PSEUDO_END
+# define PSEUDO_END(name)						      \
+  END (name)
+
+# undef JUMPTARGET
+# ifdef PIC
+#  define JUMPTARGET(name)	name##@PLTPC
+# else
+#  define JUMPTARGET(name)	name
+# endif
+
+#endif	/* __ASSEMBLER__ */