diff options
Diffstat (limited to 'elf/dl-debug.c')
-rw-r--r-- | elf/dl-debug.c | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/elf/dl-debug.c b/elf/dl-debug.c deleted file mode 100644 index f3957044f6..0000000000 --- a/elf/dl-debug.c +++ /dev/null @@ -1,76 +0,0 @@ -/* Communicate dynamic linker state to the debugger at runtime. - Copyright (C) 1996-2017 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 - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#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 - to examine and it looks for this particular symbol name. */ -struct r_debug _r_debug; - - -/* Initialize _r_debug if it has not already been done. The argument is - the run-time load address of the dynamic linker, to be put in - _r_debug.r_ldbase. Returns the address of _r_debug. */ - -struct r_debug * -internal_function -_dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns) -{ - 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->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; -} - - -/* This function exists solely to have a breakpoint set on it by the - debugger. The debugger is supposed to find this function's address by - examining the r_brk member of struct r_debug, but GDB 4.15 in fact looks - for this particular symbol name in the PT_INTERP file. */ -void -_dl_debug_state (void) -{ -} -rtld_hidden_def (_dl_debug_state) |