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, 64 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/i386/sysdep.S b/REORG.TODO/sysdeps/unix/i386/sysdep.S
new file mode 100644
index 0000000000..f5321e02aa
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/i386/sysdep.S
@@ -0,0 +1,64 @@
+/* Copyright (C) 1991-2017 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 <sysdep.h>
+#define _ERRNO_H
+#include <bits/errno.h>
+
+#if IS_IN (rtld)
+# include <dl-sysdep.h>		/* Defines RTLD_PRIVATE_ERRNO.  */
+#endif
+
+.globl C_SYMBOL_NAME(errno)
+.globl syscall_error
+
+__syscall_error:
+#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
+	/* We translate the system's EWOULDBLOCK error into EAGAIN.
+	   The GNU C library always defines EWOULDBLOCK==EAGAIN.
+	   EWOULDBLOCK_sys is the original number.  */
+	cmpl $EWOULDBLOCK_sys, %eax /* Is it the old EWOULDBLOCK?  */
+	jne notb		/* Branch if not.  */
+	movl $EAGAIN, %eax	/* Yes; translate it to EAGAIN.  */
+notb:
+#endif
+#ifndef	PIC
+# ifndef NO_TLS_DIRECT_SEG_REFS
+	movl %eax, %gs:C_SYMBOL_NAME(errno@NTPOFF)
+# else
+	movl %gs:0, %ecx
+	movl %eax, C_SYMBOL_NAME(errno@NTPOFF)(%ecx)
+# endif
+#else
+	/* The caller has pushed %ebx and then set it up to
+	   point to the GOT before calling us through the PLT.  */
+	movl C_SYMBOL_NAME(errno@GOTNTPOFF)(%ebx), %ecx
+
+	/* Pop %ebx value saved before jumping here.  */
+	popl %ebx
+# ifndef NO_TLS_DIRECT_SEG_REFS
+	addl %gs:0, %ecx
+	movl %eax, (%ecx)
+# else
+	movl %eax, %gs:0(%ecx)
+# endif
+#endif
+	movl $-1, %eax
+	ret
+
+#undef	__syscall_error
+END (__syscall_error)