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, 196 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/x86/bits/sigcontext.h b/REORG.TODO/sysdeps/unix/sysv/linux/x86/bits/sigcontext.h
new file mode 100644
index 0000000000..cff595b94a
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/x86/bits/sigcontext.h
@@ -0,0 +1,196 @@
+/* Copyright (C) 2002-2017 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/>.  */
+
+#ifndef _BITS_SIGCONTEXT_H
+#define _BITS_SIGCONTEXT_H  1
+
+#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
+# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
+#endif
+
+#include <bits/types.h>
+
+#define FP_XSTATE_MAGIC1	0x46505853U
+#define FP_XSTATE_MAGIC2	0x46505845U
+#define FP_XSTATE_MAGIC2_SIZE	sizeof(FP_XSTATE_MAGIC2)
+
+struct _fpx_sw_bytes
+{
+  __uint32_t magic1;
+  __uint32_t extended_size;
+  __uint64_t xstate_bv;
+  __uint32_t xstate_size;
+  __uint32_t __glibc_reserved1[7];
+};
+
+struct _fpreg
+{
+  unsigned short significand[4];
+  unsigned short exponent;
+};
+
+struct _fpxreg
+{
+  unsigned short significand[4];
+  unsigned short exponent;
+  unsigned short __glibc_reserved1[3];
+};
+
+struct _xmmreg
+{
+  __uint32_t	element[4];
+};
+
+
+
+#ifndef __x86_64__
+
+struct _fpstate
+{
+  /* Regular FPU environment.  */
+  __uint32_t	cw;
+  __uint32_t		sw;
+  __uint32_t		tag;
+  __uint32_t		ipoff;
+  __uint32_t		cssel;
+  __uint32_t		dataoff;
+  __uint32_t		datasel;
+  struct _fpreg	_st[8];
+  unsigned short status;
+  unsigned short magic;
+
+  /* FXSR FPU environment.  */
+  __uint32_t		_fxsr_env[6];
+  __uint32_t		mxcsr;
+  __uint32_t		__glibc_reserved1;
+  struct _fpxreg	_fxsr_st[8];
+  struct _xmmreg	_xmm[8];
+  __uint32_t		__glibc_reserved2[56];
+};
+
+#ifndef sigcontext_struct
+/* Kernel headers before 2.1.1 define a struct sigcontext_struct, but
+   we need sigcontext.  Some packages have come to rely on
+   sigcontext_struct being defined on 32-bit x86, so define this for
+   their benefit.  */
+# define sigcontext_struct sigcontext
+#endif
+
+#define X86_FXSR_MAGIC		0x0000
+
+struct sigcontext
+{
+  unsigned short gs, __gsh;
+  unsigned short fs, __fsh;
+  unsigned short es, __esh;
+  unsigned short ds, __dsh;
+  unsigned long edi;
+  unsigned long esi;
+  unsigned long ebp;
+  unsigned long esp;
+  unsigned long ebx;
+  unsigned long edx;
+  unsigned long ecx;
+  unsigned long eax;
+  unsigned long trapno;
+  unsigned long err;
+  unsigned long eip;
+  unsigned short cs, __csh;
+  unsigned long eflags;
+  unsigned long esp_at_signal;
+  unsigned short ss, __ssh;
+  struct _fpstate * fpstate;
+  unsigned long oldmask;
+  unsigned long cr2;
+};
+
+#else /* __x86_64__ */
+
+struct _fpstate
+{
+  /* FPU environment matching the 64-bit FXSAVE layout.  */
+  __uint16_t		cwd;
+  __uint16_t		swd;
+  __uint16_t		ftw;
+  __uint16_t		fop;
+  __uint64_t		rip;
+  __uint64_t		rdp;
+  __uint32_t		mxcsr;
+  __uint32_t		mxcr_mask;
+  struct _fpxreg	_st[8];
+  struct _xmmreg	_xmm[16];
+  __uint32_t		__glibc_reserved1[24];
+};
+
+struct sigcontext
+{
+  __uint64_t r8;
+  __uint64_t r9;
+  __uint64_t r10;
+  __uint64_t r11;
+  __uint64_t r12;
+  __uint64_t r13;
+  __uint64_t r14;
+  __uint64_t r15;
+  __uint64_t rdi;
+  __uint64_t rsi;
+  __uint64_t rbp;
+  __uint64_t rbx;
+  __uint64_t rdx;
+  __uint64_t rax;
+  __uint64_t rcx;
+  __uint64_t rsp;
+  __uint64_t rip;
+  __uint64_t eflags;
+  unsigned short cs;
+  unsigned short gs;
+  unsigned short fs;
+  unsigned short __pad0;
+  __uint64_t err;
+  __uint64_t trapno;
+  __uint64_t oldmask;
+  __uint64_t cr2;
+  __extension__ union
+    {
+      struct _fpstate * fpstate;
+      __uint64_t __fpstate_word;
+    };
+  __uint64_t __reserved1 [8];
+};
+
+#endif /* __x86_64__ */
+
+struct _xsave_hdr
+{
+  __uint64_t xstate_bv;
+  __uint64_t __glibc_reserved1[2];
+  __uint64_t __glibc_reserved2[5];
+};
+
+struct _ymmh_state
+{
+  __uint32_t ymmh_space[64];
+};
+
+struct _xstate
+{
+  struct _fpstate fpstate;
+  struct _xsave_hdr xstate_hdr;
+  struct _ymmh_state ymmh;
+};
+
+#endif /* _BITS_SIGCONTEXT_H */