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-rw-r--r--sysdeps/generic/ldsodefs.h72
1 files changed, 51 insertions, 21 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index dda91bb806..eee6141c6a 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -1,5 +1,5 @@
/* Run-time dynamic linker data structures for loaded ELF shared objects.
- Copyright (C) 1995-2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1995-2006, 2007 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
@@ -38,7 +38,6 @@
#include <bits/libc-lock.h>
#include <hp-timing.h>
#include <tls.h>
-#include <rtld-lowlevel.h>
__BEGIN_DECLS
@@ -439,18 +438,23 @@ struct rtld_global
EXTERN void (*_dl_rtld_unlock_recursive) (void *);
#endif
- /* Prevailing state of the stack, PF_X indicating it's executable. */
- EXTERN ElfW(Word) _dl_stack_flags;
-
/* If loading a shared object requires that we make the stack executable
when it was not, we do it by calling this function.
It returns an errno code or zero on success. */
EXTERN int (*_dl_make_stack_executable_hook) (void **) internal_function;
- /* Highest dtv index currently needed. */
- EXTERN size_t _dl_tls_max_dtv_idx;
+ /* Prevailing state of the stack, PF_X indicating it's executable. */
+ EXTERN ElfW(Word) _dl_stack_flags;
+
+ /* Keep the conditional TLS members at the end so the layout of the
+ structure used by !USE_TLS code matches the prefix of the layout in
+ the USE_TLS rtld. Note that `struct link_map' is conditionally
+ defined as well, so _dl_rtld_map needs to be last before this. */
+#ifdef USE_TLS
/* Flag signalling whether there are gaps in the module ID allocation. */
EXTERN bool _dl_tls_dtv_gaps;
+ /* Highest dtv index currently needed. */
+ EXTERN size_t _dl_tls_max_dtv_idx;
/* Information about the dtv slots. */
EXTERN struct dtv_slotinfo_list
{
@@ -474,10 +478,10 @@ struct rtld_global
/* Number of additional entries in the slotinfo array of each slotinfo
list element. A large number makes it almost certain take we never
have to iterate beyond the first element in the slotinfo list. */
-#define TLS_SLOTINFO_SURPLUS (62)
+# define TLS_SLOTINFO_SURPLUS (62)
/* Number of additional slots in the dtv allocated. */
-#define DTV_SURPLUS (14)
+# define DTV_SURPLUS (14)
/* Initial dtv of the main thread, not allocated with normal malloc. */
EXTERN void *_dl_initial_dtv;
@@ -485,18 +489,31 @@ struct rtld_global
EXTERN size_t _dl_tls_generation;
EXTERN void (*_dl_init_static_tls) (struct link_map *);
+#endif
+
+ EXTERN void (*_dl_wait_lookup_done) (void);
+ /* Scopes to free after next THREAD_GSCOPE_WAIT (). */
+ EXTERN struct dl_scope_free_list
+ {
+ size_t count;
+ struct r_scope_elem **list[50];
+ } *_dl_scope_free_list;
#ifdef SHARED
};
# define __rtld_global_attribute__
# ifdef IS_IN_rtld
-# ifdef HAVE_SDATA_SECTION
-# define __rtld_local_attribute__ \
+# ifdef HAVE_VISIBILITY_ATTRIBUTE
+# ifdef HAVE_SDATA_SECTION
+# define __rtld_local_attribute__ \
__attribute__ ((visibility ("hidden"), section (".sdata")))
-# undef __rtld_global_attribute__
-# define __rtld_global_attribute__ __attribute__ ((section (".sdata")))
+# undef __rtld_global_attribute__
+# define __rtld_global_attribute__ __attribute__ ((section (".sdata")))
+# else
+# define __rtld_local_attribute__ __attribute__ ((visibility ("hidden")))
+# endif
# else
-# define __rtld_local_attribute__ __attribute__ ((visibility ("hidden")))
+# define __rtld_local_attribute__
# endif
extern struct rtld_global _rtld_local __rtld_local_attribute__;
# undef __rtld_local_attribute__
@@ -532,15 +549,15 @@ struct rtld_global_ro
#define DL_DEBUG_HELP (1 << 9)
#define DL_DEBUG_PRELINK (1 << 10)
- /* Cached value of `getpagesize ()'. */
- EXTERN size_t _dl_pagesize;
-
/* OS version. */
EXTERN unsigned int _dl_osversion;
/* Platform name. */
EXTERN const char *_dl_platform;
EXTERN size_t _dl_platformlen;
+ /* Cached value of `getpagesize ()'. */
+ EXTERN size_t _dl_pagesize;
+
/* Copy of the content of `_dl_main_searchlist' at startup time. */
EXTERN struct r_scope_elem _dl_initial_searchlist;
@@ -569,9 +586,6 @@ struct rtld_global_ro
/* Expected cache ID. */
EXTERN int _dl_correct_cache_id;
- /* 0 if internal pointer values should not be guarded, 1 if they should. */
- EXTERN int _dl_pointer_guard;
-
/* Mask for hardware capabilities that are available. */
EXTERN uint64_t _dl_hwcap;
@@ -655,10 +669,17 @@ struct rtld_global_ro
/* List of auditing interfaces. */
struct audit_ifaces *_dl_audit;
unsigned int _dl_naudit;
+
+ /* 0 if internal pointer values should not be guarded, 1 if they should. */
+ EXTERN int _dl_pointer_guard;
};
# define __rtld_global_attribute__
# ifdef IS_IN_rtld
-# define __rtld_local_attribute__ __attribute__ ((visibility ("hidden")))
+# ifdef HAVE_VISIBILITY_ATTRIBUTE
+# define __rtld_local_attribute__ __attribute__ ((visibility ("hidden")))
+# else
+# define __rtld_local_attribute__
+# endif
extern struct rtld_global_ro _rtld_local_ro
attribute_relro __rtld_local_attribute__;
extern struct rtld_global_ro _rtld_global_ro
@@ -1023,7 +1044,9 @@ rtld_hidden_proto (_dl_allocate_tls_init)
extern void _dl_deallocate_tls (void *tcb, bool dealloc_tcb) internal_function;
rtld_hidden_proto (_dl_deallocate_tls)
+#if defined USE_TLS
extern void _dl_nothread_init_static_tls (struct link_map *) attribute_hidden;
+#endif
/* Find origin of the executable. */
extern const char *_dl_get_origin (void) attribute_hidden;
@@ -1046,6 +1069,11 @@ extern void *_dl_open (const char *name, int mode, const void *caller,
Lmid_t nsid, int argc, char *argv[], char *env[])
attribute_hidden;
+/* Free or queue for freeing scope OLD. If other threads might be
+ in the middle of _dl_fixup, _dl_profile_fixup or dl*sym using the
+ old scope, OLD can't be freed until no thread is using it. */
+extern int _dl_scope_free (struct r_scope_elem **old) attribute_hidden;
+
/* Add module to slot information data. */
extern void _dl_add_to_slotinfo (struct link_map *l) attribute_hidden;
@@ -1057,6 +1085,8 @@ extern struct link_map *_dl_update_slotinfo (unsigned long int req_modid);
but never touch anything. Return null if it's not allocated yet. */
extern void *_dl_tls_get_addr_soft (struct link_map *l) internal_function;
+extern int _dl_addr_inside_object (struct link_map *l, const ElfW(Addr) addr)
+ internal_function attribute_hidden;
__END_DECLS