diff options
Diffstat (limited to 'elf/dl-debug.c')
| -rw-r--r-- | elf/dl-debug.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/elf/dl-debug.c b/elf/dl-debug.c index bd6ee69..2538364 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 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 @@ -32,20 +45,25 @@ struct r_debug _r_debug; struct r_debug * internal_function -_dl_debug_initialize (ElfW(Addr) ldbase) +_dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns) { - if (_r_debug.r_brk == 0) + struct r_debug *r; + + if (ns == LM_ID_BASE) + r = &_r_debug; + else + r = &GL(dl_ns)[ns]._ns_debug; + + if (r->r_map == NULL || ldbase != 0) { /* Tell the debugger where to find the map of loaded objects. */ - _r_debug.r_version = 1 /* R_DEBUG_VERSION XXX */; - _r_debug.r_ldbase = ldbase; - // XXX This is problematic. It means we cannot tell the debugger - // XXX about namespaces other than the main one. - _r_debug.r_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded; - _r_debug.r_brk = (ElfW(Addr)) &_dl_debug_state; + r->r_version = 1 /* R_DEBUG_VERSION XXX */; + r->r_ldbase = ldbase ?: _r_debug.r_ldbase; + r->r_map = (void *) GL(dl_ns)[ns]._ns_loaded; + r->r_brk = (ElfW(Addr)) &_dl_debug_state; } - return &_r_debug; + return r; } |