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authorRoland McGrath <roland@gnu.org>2006-03-01 06:18:49 +0000
committerRoland McGrath <roland@gnu.org>2006-03-01 06:18:49 +0000
commitd78efd9f369a8fc46229fc9224e10e3781eecc43 (patch)
tree2ab775602fdf94ce710efb518002de4a93bfab0e /elf/dl-debug.c
parent0b890d59bd75cb8ab9232ab72ed8674054e11fa3 (diff)
* elf/tst-tls-dlinfo.c: New file.
* elf/Makefile (tests): Add it. ($(objpfx)tst-tls-dlinfo): Depend on $(libdl). ($(objpfx)tst-tls-dlinfo.out): Depend on $(objpfx)tst-tlsmod2.so. * dlfcn/dlfcn.h (RTLD_DI_PROFILENAME, RTLD_DI_PROFILEOUT): New enum values, reserve unsupported requested names used on Solaris. (RTLD_DI_TLS_MODID, RTLD_DI_TLS_DATA): New enum values. (RTLD_DI_MAX): Likewise. * dlfcn/dlinfo.c (dlinfo_doit): Handle RTLD_DI_TLS_MODID and RTLD_DI_TLS_DATA. * elf/dl-tls.c (_dl_tls_get_addr_soft): New function. * sysdeps/generic/ldsodefs.h: Declare it. * elf/Versions (ld: GLIBC_PRIVATE): Add it. * elf/link.h (struct dl_phdr_info): New members dlpi_tls_modid, dlpi_tls_data. * elf/dl-iteratephdr.c (__dl_iterate_phdr): Fill them in. * include/link.h: Don't copy contents from elf/link.h. Instead, #include it while #define'ing around link_map. * elf/dl-debug.c (_dl_debug_initialize): Add a cast. Add bogus extern decl to verify link_map members. * elf/loadtest.c (MAPS): New macro, cast _r_debug._r_map. (OUT, main): Use it in place of _r_debug._r_map. * elf/unload.c: Likewise. * elf/unload2.c: Likewise. * elf/neededtest.c (check_loaded_objects): Likewise. * elf/neededtest2.c (check_loaded_objects): Likewise. * elf/neededtest3.c (check_loaded_objects): Likewise. * elf/neededtest4.c (check_loaded_objects): Likewise. * elf/circleload1.c (check_loaded_objects): Likewise.
Diffstat (limited to 'elf/dl-debug.c')
-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;
}