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-rw-r--r--elf/dl-debug.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/elf/dl-debug.c b/elf/dl-debug.c
index bc7d793435..d00fe87fbb 100644
--- a/elf/dl-debug.c
+++ b/elf/dl-debug.c
@@ -1,5 +1,6 @@
/* Communicate dynamic linker state to the debugger at runtime.
- Copyright (C) 1996, 1998,2000,2002,2004,2005 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1998,2000,2002,2004,2005,2006
+ 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
@@ -19,6 +20,18 @@
#include <ldsodefs.h>
+
+/* These are the members in the public `struct link_map' type.
+ Sanity check that the internal type and the public type match. */
+#define VERIFY_MEMBER(name) \
+ (offsetof (struct link_map_public, name) == offsetof (struct link_map, name))
+extern const int verify_link_map_members[(VERIFY_MEMBER (l_addr)
+ && VERIFY_MEMBER (l_name)
+ && VERIFY_MEMBER (l_ld)
+ && VERIFY_MEMBER (l_next)
+ && VERIFY_MEMBER (l_prev))
+ ? 1 : -1];
+
/* This structure communicates dl state to the debugger. The debugger
normally finds it via the DT_DEBUG entry in the dynamic section, but in
a statically-linked program there is no dynamic section for the debugger
@@ -46,7 +59,7 @@ _dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns)
/* Tell the debugger where to find the map of loaded objects. */
r->r_version = 1 /* R_DEBUG_VERSION XXX */;
r->r_ldbase = ldbase ?: _r_debug.r_ldbase;
- r->r_map = GL(dl_ns)[ns]._ns_loaded;
+ r->r_map = (void *) GL(dl_ns)[ns]._ns_loaded;
r->r_brk = (ElfW(Addr)) &_dl_debug_state;
}