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, 131 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h b/REORG.TODO/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h
new file mode 100644
index 0000000000..e6ecbe6ab5
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/m68k/sys/ucontext.h
@@ -0,0 +1,131 @@
+/* Copyright (C) 1997-2017 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/>.  */
+
+/* System V/m68k ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+
+#include <bits/types/sigset_t.h>
+#include <bits/sigcontext.h>
+#include <bits/types/stack_t.h>
+
+
+/* Type for general register.  */
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define __NGREG	18
+#ifdef __USE_MISC
+# define NGREG	__NGREG
+#endif
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[__NGREG];
+
+#ifdef __USE_MISC
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R_D0 = 0,
+# define R_D0	R_D0
+  R_D1 = 1,
+# define R_D1	R_D1
+  R_D2 = 2,
+# define R_D2	R_D2
+  R_D3 = 3,
+# define R_D3	R_D3
+  R_D4 = 4,
+# define R_D4	R_D4
+  R_D5 = 5,
+# define R_D5	R_D5
+  R_D6 = 6,
+# define R_D6	R_D6
+  R_D7 = 7,
+# define R_D7	R_D7
+  R_A0 = 8,
+# define R_A0	R_A0
+  R_A1 = 9,
+# define R_A1	R_A1
+  R_A2 = 10,
+# define R_A2	R_A2
+  R_A3 = 11,
+# define R_A3	R_A3
+  R_A4 = 12,
+# define R_A4	R_A4
+  R_A5 = 13,
+# define R_A5	R_A5
+  R_A6 = 14,
+# define R_A6	R_A6
+  R_A7 = 15,
+# define R_A7	R_A7
+  R_SP = 15,
+# define R_SP	R_SP
+  R_PC = 16,
+# define R_PC	R_PC
+  R_PS = 17
+# define R_PS	R_PS
+};
+#endif
+
+#ifdef __USE_MISC
+# define __ctx(fld) fld
+#else
+# define __ctx(fld) __ ## fld
+#endif
+
+/* Structure to describe FPU registers.  */
+typedef struct fpregset
+{
+  int __ctx(f_pcr);
+  int __ctx(f_psr);
+  int __ctx(f_fpiaddr);
+#ifdef __mcoldfire__
+  int __ctx(f_fpregs)[8][2];
+#else
+  int __ctx(f_fpregs)[8][3];
+#endif
+} fpregset_t;
+
+/* Context to describe whole processor state.  */
+typedef struct
+{
+  int __ctx(version);
+  gregset_t __ctx(gregs);
+  fpregset_t __ctx(fpregs);
+} mcontext_t;
+
+#undef __ctx
+
+#ifdef __USE_MISC
+# define MCONTEXT_VERSION 2
+#endif
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+  unsigned long uc_flags;
+  struct ucontext *uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  unsigned long uc_filler[80];
+  sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif /* sys/ucontext.h */