/* Support for dynamic linking code in static libc.
- Copyright (C) 1996-2013 Free Software Foundation, Inc.
+ Copyright (C) 1996-2015 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
#include <stdlib.h>
#include <unistd.h>
#include <sys/param.h>
+#include <stdint.h>
#include <ldsodefs.h>
#include <dl-machine.h>
#include <bits/libc-lock.h>
/* Nonzero if runtime lookup should not update the .got/.plt. */
int _dl_bind_not;
+/* A dummy link map for the executable, used by dlopen to access the global
+ scope. We don't export any symbols ourselves, so this can be minimal. */
+static struct link_map _dl_main_map =
+ {
+ .l_name = (char *) "",
+ .l_real = &_dl_main_map,
+ .l_ns = LM_ID_BASE,
+ .l_libname = &(struct libname_list) { .name = "", .dont_free = 1 },
+ .l_searchlist =
+ {
+ .r_list = &(struct link_map *) { &_dl_main_map },
+ .r_nlist = 1,
+ },
+ .l_symbolic_searchlist = { .r_list = &(struct link_map *) { NULL } },
+ .l_type = lt_executable,
+ .l_scope_mem = { &_dl_main_map.l_searchlist },
+ .l_scope_max = (sizeof (_dl_main_map.l_scope_mem)
+ / sizeof (_dl_main_map.l_scope_mem[0])),
+ .l_scope = _dl_main_map.l_scope_mem,
+ .l_local_scope = { &_dl_main_map.l_searchlist },
+ .l_used = 1,
+ .l_flags_1 = DF_1_NODEFLIB,
+ .l_tls_offset = NO_TLS_OFFSET,
+ .l_serial = 1,
+ };
+
/* Namespace information. */
-struct link_namespaces _dl_ns[DL_NNS];
-size_t _dl_nns;
+struct link_namespaces _dl_ns[DL_NNS] =
+ {
+ [LM_ID_BASE] =
+ {
+ ._ns_loaded = &_dl_main_map,
+ ._ns_nloaded = 1,
+ ._ns_main_searchlist = &_dl_main_map.l_searchlist,
+ }
+ };
+size_t _dl_nns = 1;
/* Incremented whenever something may have been added to dl_loaded. */
-unsigned long long _dl_load_adds;
+unsigned long long _dl_load_adds = 1;
-/* Fake scope. In dynamically linked binaries this is the scope of the
- main application but here we don't have something like this. So
- create a fake scope containing nothing. */
-struct r_scope_elem _dl_initial_searchlist;
+/* Fake scope of the main application. */
+struct r_scope_elem _dl_initial_searchlist =
+ {
+ .r_list = &(struct link_map *) { &_dl_main_map },
+ .r_nlist = 1,
+ };
#ifndef HAVE_INLINED_SYSCALLS
/* Nonzero during startup. */
/* Get architecture specific initializer. */
#include <dl-procinfo.c>
-/* We expect less than a second for relocation. */
-#ifdef HP_SMALL_TIMING_AVAIL
-# undef HP_TIMING_AVAIL
-# define HP_TIMING_AVAIL HP_SMALL_TIMING_AVAIL
-#endif
-
/* Initial value of the CPU clock. */
#ifndef HP_TIMING_NONAVAIL
hp_timing_t _dl_cpuclock_offset;
int _dl_correct_cache_id = _DL_CACHE_DEFAULT_ID;
ElfW(auxv_t) *_dl_auxv;
-ElfW(Phdr) *_dl_phdr;
+const ElfW(Phdr) *_dl_phdr;
size_t _dl_phnum;
uint64_t _dl_hwcap __attribute__ ((nocommon));
+uint64_t _dl_hwcap2 __attribute__ ((nocommon));
+
+/* The value of the FPU control word the kernel will preset in hardware. */
+fpu_control_t _dl_fpu_control = _FPU_DEFAULT;
/* This is not initialized to HWCAP_IMPORTANT, matching the definition
of _dl_important_hwcaps, below, where no hwcap strings are ever
GLRO(dl_clktck) = av->a_un.a_val;
break;
case AT_PHDR:
- GL(dl_phdr) = (void *) av->a_un.a_val;
+ GL(dl_phdr) = (const void *) av->a_un.a_val;
break;
case AT_PHNUM:
GL(dl_phnum) = av->a_un.a_val;
case AT_HWCAP:
GLRO(dl_hwcap) = (unsigned long int) av->a_un.a_val;
break;
+ case AT_HWCAP2:
+ GLRO(dl_hwcap2) = (unsigned long int) av->a_un.a_val;
+ break;
+ case AT_FPUCW:
+ GLRO(dl_fpu_control) = av->a_un.a_val;
+ break;
#ifdef NEED_DL_SYSINFO
case AT_SYSINFO:
GL(dl_sysinfo) = av->a_un.a_val;
internal_function
_dl_non_dynamic_init (void)
{
- if (HP_TIMING_AVAIL)
+ _dl_main_map.l_origin = _dl_get_origin ();
+ _dl_main_map.l_phdr = GL(dl_phdr);
+ _dl_main_map.l_phnum = GL(dl_phnum);
+
+ if (HP_SMALL_TIMING_AVAIL)
HP_TIMING_NOW (_dl_cpuclock_offset);
_dl_verbose = *(getenv ("LD_WARN") ?: "") == '\0' ? 0 : 1;