/* Support for dynamic linking code in static libc.
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 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
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 <sys/mman.h>
-#include <sys/stat.h>
-
/* This file defines some things that for the dynamic linker are defined in
rtld.c and dl-sysdep.c in ways appropriate to bootstrap dynamic linking. */
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <elf/ldsodefs.h>
+#include <dl-machine.h>
+
extern char *__progname;
char **_dl_argv = &__progname; /* This is checked for some error messages. */
/* This defines the default search path for libraries.
For the dynamic linker it is set by -rpath when linking. */
const char *_dl_rpath = DEFAULT_RPATH;
-\f
-#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)
+/* Name of the architecture. */
+const char *_dl_platform;
+size_t _dl_platformlen;
+
+int _dl_debug_libs;
+int _dl_debug_impcalls;
+int _dl_debug_bindings;
+int _dl_debug_symbols;
+int _dl_debug_versions;
+int _dl_debug_reloc;
+int _dl_debug_files;
+
+/* If nonzero print warnings about problematic situations. */
+int _dl_verbose;
+
+/* Structure to store information about search paths. */
+struct r_search_path *_dl_search_paths;
+
+/* We never do profiling. */
+const char *_dl_profile;
+
+/* Names of shared object for which the RPATHs should be ignored. */
+const char *_dl_inhibit_rpath;
+
+/* This is the address of the last stack address ever used. */
+void *__libc_stack_end;
+
+
+static void non_dynamic_init (void) __attribute__ ((unused));
+
+static void
+non_dynamic_init (void)
{
- return __open ("/dev/zero", O_RDONLY);
-}
+ _dl_verbose = *(getenv ("LD_WARN") ?: "") == '\0' ? 0 : 1;
+
+ _dl_pagesize = __getpagesize ();
+
+ /* Initialize the data structures for the search paths for shared
+ objects. */
+ _dl_init_paths (getenv ("LD_LIBRARY_PATH"));
+
+#ifdef DL_PLATFORM_INIT
+ DL_PLATFORM_INIT;
#endif
-/* This should never be called. */
-void
-_dl_sysdep_fatal (void)
-{
- assert (! "_dl_sysdep_fatal called");
+ /* Now determine the length of the platform string. */
+ if (_dl_platform != NULL)
+ _dl_platformlen = strlen (_dl_platform);
}
+text_set_element (__libc_subinit, non_dynamic_init);
-/* 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)
+const struct r_strlenpair *
+internal_function
+_dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz,
+ size_t *max_capstrlen)
{
- void *result;
- struct stat st;
- int fd = __open (file, O_RDONLY);
- if (fd < 0)
- return NULL;
- if (__fstat (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);
+ struct r_strlenpair *result;
+
+ /* XXX We don't try to find the capabilities in this case. */
+ result = (struct r_strlenpair *) malloc (sizeof (*result));
+ if (result == NULL)
+ _dl_signal_error (ENOMEM, NULL, "cannot create capability list");
+
+ result[0].str = (char *) result; /* Does not really matter. */
+ result[0].len = 0;
+
+ *sz = 1;
return result;
}