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, 105 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/lddlibc4.c b/REORG.TODO/sysdeps/unix/sysv/linux/lddlibc4.c
new file mode 100644
index 0000000000..25c4cb960a
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/lddlibc4.c
@@ -0,0 +1,105 @@
+/* Stub for ldd script to print Linux libc4 dependencies.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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/>.  */
+
+/* This code is based on the `ldd' program code from the Linux ld.so
+   package.  */
+
+#include <a.out.h>
+#include <errno.h>
+#include <error.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Get libc version number.  */
+#include "../version.h"
+
+#define PACKAGE _libc_intl_domainname
+
+
+int
+main (int argc, char *argv[])
+{
+  const char *filename;
+  size_t filename_len;
+  struct exec exec;
+  char *buf;
+  FILE *fp;
+
+  /* Set locale via LC_ALL.  */
+  setlocale (LC_ALL, "");
+
+  /* Set the text message domain.  */
+  textdomain (PACKAGE);
+
+  /* We expect exactly one argument.  */
+  if (argc != 2)
+    return 1;
+
+  if (strcmp (argv[1], "--help") == 0)
+    {
+      printf (gettext ("Usage: lddlibc4 FILE\n\n"));
+      printf (gettext ("For bug reporting instructions, please see:\n\
+%s.\n"), REPORT_BUGS_TO);
+      return 0;
+    }
+  else if (strcmp (argv[1], "--version") == 0)
+    {
+      printf ("lddlibc4 %s%s\n", PKGVERSION, VERSION);
+      printf (gettext ("\
+Copyright (C) %s Free Software Foundation, Inc.\n\
+This is free software; see the source for copying conditions.  There is NO\n\
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
+"), "2017");
+      return 0;
+    }
+
+  filename = argv[1];
+
+  /* First see whether this is really an a.out binary.  */
+  fp = fopen (filename, "rb");
+  if (fp == NULL)
+    error (2, errno, gettext ("cannot open `%s'"), filename);
+
+  /* Read the program header.  */
+  if (fread (&exec, sizeof exec, 1, fp) < 1)
+    error (2, errno, gettext ("cannot read header from `%s'"), filename);
+
+  /* Test for the magic numbers.  */
+  if (N_MAGIC (exec) != ZMAGIC && N_MAGIC (exec) != QMAGIC
+      && N_MAGIC (exec) != OMAGIC)
+    exit (3);
+
+  /* We don't need the file open anymore.  */
+  fclose (fp);
+
+  /* We must put `__LDD_ARGV0=<program-name>' in the environment.  */
+  filename_len = strlen (filename);
+  buf = (char *) alloca (sizeof "__LDD_ARGV0=" + filename_len);
+  mempcpy (mempcpy (buf, "__LDD_ARGV0=", sizeof "__LDD_ARGV0=" - 1),
+	   filename, filename_len + 1);
+  /* ...and put the value in the environment.  */
+  putenv (buf);
+
+  /* Now we can execute the binary.  */
+  return execv (filename, &argv[argc]) ? 4 : 0;
+}