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-rw-r--r--elf/dl-misc.c122
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diff --git a/elf/dl-misc.c b/elf/dl-misc.c
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+/* Miscellaneous support functions for dynamic linker
+ Copyright (C) 1997 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <assert.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+
+#ifndef MAP_ANON
+/* This is the only dl-sysdep.c function that is actually needed at run-time
+ by _dl_map_object. */
+
+int
+_dl_sysdep_open_zero_fill (void)
+{
+ return __open ("/dev/zero", O_RDONLY);
+}
+#endif
+
+/* Read the whole contents of FILE into new mmap'd space with given
+ protections. *SIZEP gets the size of the file. */
+
+void *
+_dl_sysdep_read_whole_file (const char *file, size_t *sizep, int prot)
+{
+ void *result;
+ struct stat st;
+ int fd = __open (file, O_RDONLY);
+ if (fd < 0)
+ return NULL;
+ if (__fxstat (_STAT_VER, fd, &st) < 0)
+ result = NULL;
+ else
+ {
+ /* Map a copy of the file contents. */
+ result = __mmap (0, st.st_size, prot,
+#ifdef MAP_COPY
+ MAP_COPY
+#else
+ MAP_PRIVATE
+#endif
+#ifdef MAP_FILE
+ | MAP_FILE
+#endif
+ , fd, 0);
+ if (result == (void *) -1)
+ result = NULL;
+ else
+ *sizep = st.st_size;
+ }
+ __close (fd);
+ return result;
+}
+
+
+void
+_dl_sysdep_fatal (const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ do
+ {
+ size_t len = strlen (msg);
+ __write (STDERR_FILENO, msg, len);
+ msg = va_arg (ap, const char *);
+ } while (msg);
+ va_end (ap);
+
+ _exit (127);
+}
+
+
+void
+_dl_sysdep_error (const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ do
+ {
+ size_t len = strlen (msg);
+ __write (STDERR_FILENO, msg, len);
+ msg = va_arg (ap, const char *);
+ } while (msg);
+ va_end (ap);
+}
+
+
+void
+_dl_sysdep_message (const char *msg, ...)
+{
+ va_list ap;
+
+ va_start (ap, msg);
+ do
+ {
+ size_t len = strlen (msg);
+ __write (STDOUT_FILENO, msg, len);
+ msg = va_arg (ap, const char *);
+ } while (msg);
+ va_end (ap);
+}