+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2000-2005 by Erik Andersen <andersen@codepoet.org>
+ *
+ * GNU Lesser General Public License version 2.1 or later.
+ */
+
#ifndef _LDSO_H_
#define _LDSO_H_
#include <features.h>
/* Prepare for the case that `__builtin_expect' is not available. */
-#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
+#if defined __GNUC__ && __GNUC__ == 2 && __GNUC_MINOR__ < 96
#define __builtin_expect(x, expected_value) (x)
#endif
#ifndef likely
/* Pull in compiler and arch stuff */
#include <stdlib.h>
#include <stdarg.h>
+#include <stddef.h> /* for ptrdiff_t */
+#include <stdbool.h>
+#define _FCNTL_H
+#include <bits/fcntl.h>
+#include <bits/wordsize.h>
/* Pull in the arch specific type information */
#include <sys/types.h>
+/* Pull in the arch specific page size */
+#include <bits/uClibc_page.h>
+/* Pull in the MIN macro */
+#include <sys/param.h>
/* Pull in the ldso syscalls and string functions */
+#ifndef __ARCH_HAS_NO_SHARED__
#include <dl-syscall.h>
#include <dl-string.h>
-/* Pull in the arch specific page size */
-#include <bits/uClibc_page.h>
+#include <dlfcn.h>
/* Now the ldso specific headers */
#include <dl-elf.h>
+#ifdef __UCLIBC_HAS_TLS__
+/* Defines USE_TLS */
+#include <tls.h>
+#endif
#include <dl-hash.h>
+/* common align masks, if not specified by sysdep headers */
+#ifndef ADDR_ALIGN
+#define ADDR_ALIGN (_dl_pagesize - 1)
+#endif
+
+#ifndef PAGE_ALIGN
+#define PAGE_ALIGN (~ADDR_ALIGN)
+#endif
+
+#ifndef OFFS_ALIGN
+#define OFFS_ALIGN (PAGE_ALIGN & ~(1ul << (sizeof(_dl_pagesize) * 8 - 1)))
+#endif
+
/* For INIT/FINI dependency sorting. */
struct init_fini_list {
struct init_fini_list *next;
/* Global variables used within the shared library loader */
extern char *_dl_library_path; /* Where we look for libraries */
extern char *_dl_preload; /* Things to be loaded before the libs */
-extern char *_dl_ldsopath; /* Where the shared lib loader was found */
+#ifdef __LDSO_SEARCH_INTERP_PATH__
+extern const char *_dl_ldsopath; /* Where the shared lib loader was found */
+#endif
extern const char *_dl_progname; /* The name of the executable being run */
-extern int _dl_secure; /* Are we dealing with setuid stuff? */
extern size_t _dl_pagesize; /* Store the page size for use later */
-extern const char *_dl_progname; /* The name of the shared library loader */
+#ifdef __LDSO_PRELINK_SUPPORT__
+extern char *_dl_trace_prelink; /* Library for prelinking trace */
+extern struct elf_resolve *_dl_trace_prelink_map; /* Library map for prelinking trace */
+#else
+#define _dl_trace_prelink 0
+#endif
+#if defined(USE_TLS) && USE_TLS
+extern void _dl_add_to_slotinfo (struct link_map *l);
+extern void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
+#endif
+
+#ifdef USE_TLS
+void _dl_add_to_slotinfo (struct link_map *l);
+void ** __attribute__ ((const)) _dl_initial_error_catch_tsd (void);
+#endif
#ifdef __SUPPORT_LD_DEBUG__
extern char *_dl_debug;
extern char *_dl_debug_symbols;
extern char *_dl_debug_nofixups;
extern char *_dl_debug_bindings;
extern int _dl_debug_file;
+# define __dl_debug_dprint(fmt, args...) \
+ _dl_dprintf(_dl_debug_file, "%s:%i: " fmt, __func__, __LINE__, ## args);
+# define _dl_if_debug_dprint(fmt, args...) \
+ do { if (_dl_debug) __dl_debug_dprint(fmt, ## args); } while (0)
#else
-#define _dl_debug_file 2
+# define __dl_debug_dprint(fmt, args...) do {} while (0)
+# define _dl_if_debug_dprint(fmt, args...) do {} while (0)
+# define _dl_debug_file 2
+#endif /* __SUPPORT_LD_DEBUG__ */
+
+#ifdef IS_IN_rtld
+# ifdef __SUPPORT_LD_DEBUG__
+# define _dl_assert(expr) \
+ do { \
+ if (!(expr)) { \
+ __dl_debug_dprint("assert(%s)\n", #expr); \
+ _dl_exit(45); \
+ } \
+ } while (0)
+# else
+# define _dl_assert(expr) ((void)0)
+# endif
+#else
+# include <assert.h>
+# define _dl_assert(expr) assert(expr)
#endif
+#ifdef __SUPPORT_LD_DEBUG_EARLY__
+# define _dl_debug_early(fmt, args...) __dl_debug_dprint(fmt, ## args)
+#else
+# define _dl_debug_early(fmt, args...) do {} while (0)
+#endif /* __SUPPORT_LD_DEBUG_EARLY__ */
+
#ifndef NULL
#define NULL ((void *) 0)
#endif
-extern void *_dl_malloc(int size);
+extern void *_dl_malloc(size_t size);
+extern void *_dl_calloc(size_t __nmemb, size_t __size);
+extern void *_dl_realloc(void *__ptr, size_t __size);
+extern void _dl_free(void *);
extern char *_dl_getenv(const char *symbol, char **envp);
extern void _dl_unsetenv(const char *symbol, char **envp);
extern char *_dl_strdup(const char *string);
extern void _dl_dprintf(int, const char *, ...);
-extern void _dl_get_ready_to_run(struct elf_resolve *tpnt, unsigned long load_addr,
- Elf32_auxv_t auxvt[AT_EGID + 1], char **envp, char **argv);
+#ifndef DL_GET_READY_TO_RUN_EXTRA_PARMS
+# define DL_GET_READY_TO_RUN_EXTRA_PARMS
+#endif
+#ifndef DL_GET_READY_TO_RUN_EXTRA_ARGS
+# define DL_GET_READY_TO_RUN_EXTRA_ARGS
+#endif
+extern void *_dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
+ ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv
+ DL_GET_READY_TO_RUN_EXTRA_PARMS);
-#endif /* _LDSO_H_ */
+#ifdef HAVE_DL_INLINES_H
+#include <dl-inlines.h>
+#endif
+#else /* __ARCH_HAS_NO_SHARED__ */
+#include <dl-defs.h>
+#endif
+
+#endif /* _LDSO_H_ */
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