------- Additional Comments From stefan dot becker at nokia dot com 2008-12-11
09:37 -------
Dooh, no wonder I couldn't make heads or tails out of the backtrace. Should have
thought about that myself :-)
Here is the backtrace generated from a binary compiled with -O0:
(gdb) bt
#0 gold::do_gold_unreachable (
filename=0x81f1d50 "../../binutils-2.19/gold/object.h", lineno=968,
function=0x81f263d "output_symtab_index")
at ../../binutils-2.19/gold/gold.cc:84
#1 0x080619d1 in gold::Symbol_value<32>::output_symtab_index (this=0x8a471e0)
at ../../binutils-2.19/gold/object.h:968
#2 0x08061a2f in gold::Sized_relobj<32, false>::symtab_index (this=0x8a28ab0,
sym=0) at ../../binutils-2.19/gold/object.h:1239
#3 0x08064a4c in gold::relocate_for_relocatable<32, false, 9> (
relinfo=0xbff09670, prelocs=0xb7e45128 "h\v", reloc_count=4329,
output_section=0x8c340a0, offset_in_output_section=0, rr=0x8c987f0,
view=0xb7d1aff8 "\030", view_address=0, reloc_view=0xb7d78a64 "\022",
reloc_view_size=34632) at ../../binutils-2.19/gold/target-reloc.h:479
#4 0x0805a761 in relocate_for_relocatable (this=0x8a28be0,
relinfo=0xbff09670, sh_type=9, prelocs=0xb7e44e00 "\022",
reloc_count=4329, output_section=0x8c340a0, offset_in_output_section=0,
rr=0x8c987f0, view=0xb7d1aff8 "\030", view_address=0, view_size=116096,
reloc_view=0xb7d78a64 "\022", reloc_view_size=34632)
at ../../binutils-2.19/gold/i386.cc:2516
#5 0x08142138 in gold::Sized_relobj<32, false>::relocate_sections (
this=0x8a28ab0, [EMAIL PROTECTED], symtab=0xbff0b0f0, layout=0xbff0af64,
pshdrs=0xb7ec5f80 "", pviews=0xbff09718)
at ../../binutils-2.19/gold/reloc.cc:803
#6 0x081428d2 in gold::Sized_relobj<32, false>::do_relocate (this=0x8a28ab0,
[EMAIL PROTECTED], symtab=0xbff0b0f0, layout=0xbff0af64, of=0x8da26f0)
at ../../binutils-2.19/gold/reloc.cc:486
#7 0x08136046 in gold::Relobj::relocate (this=0x8a28ab0, [EMAIL PROTECTED],
symtab=0xbff0b0f0, layout=0xbff0af64, of=0x8da26f0)
at ../../binutils-2.19/gold/object.h:628
#8 0x08135cee in gold::Relocate_task::run (this=0x8da27d8)
at ../../binutils-2.19/gold/reloc.cc:164
#9 0x0818f225 in gold::Workqueue::find_and_run_task (this=0xbff0b2d0,
thread_number=0) at ../../binutils-2.19/gold/workqueue.cc:314
#10 0x0818f39e in gold::Workqueue::process (this=0xbff0b2d0, thread_number=0)
at ../../binutils-2.19/gold/workqueue.cc:480
#11 0x0804b230 in main (argc=5, argv=0xbff0b3d4)
at ../../binutils-2.19/gold/main.cc:219
(gdb) up
#1 0x080619d1 in gold::Symbol_value<32>::output_symtab_index (this=0x8a471e0)
at ../../binutils-2.19/gold/object.h:968
968 gold_assert(this->output_symtab_index_ != 0);
(gdb) l
963
964 // Return the index in the output symbol table.
965 unsigned int
966 output_symtab_index() const
967 {
968 gold_assert(this->output_symtab_index_ != 0);
969 return this->output_symtab_index_;
970 }
971
972 // Set the index in the output symbol table.
(gdb) print this
$1 = (const gold::Symbol_value<32> * const) 0x8a471e0
(gdb) up
#2 0x08061a2f in gold::Sized_relobj<32, false>::symtab_index (this=0x8a28ab0,
sym=0) at ../../binutils-2.19/gold/object.h:1239
1239 return this->local_values_[sym].output_symtab_index();
(gdb) l
1234 // table. A value of -1U means that the symbol is not being output.
1235 unsigned int
1236 symtab_index(unsigned int sym) const
1237 {
1238 gold_assert(sym < this->local_values_.size());
1239 return this->local_values_[sym].output_symtab_index();
1240 }
1241
1242 // Return the index of local symbol SYM in the dynamic symbol
1243 // table. A value of -1U means that the symbol is not being output.
(gdb) print this->local_values_[sym]
$6 = (const gold::Symbol_value<32> &) @0x8a471e0: {output_symtab_index_ = 0,
output_dynsym_index_ = 4294967295, input_shndx_ = 0,
is_ordinary_shndx_ = false, is_section_symbol_ = false,
is_tls_symbol_ = false, has_output_value_ = true, u_ = {value = 0,
merged_symbol_value = 0x0}}
(gdb) print this
$7 = (const class gold::Sized_relobj<32,false> * const) 0x8a28ab0
(gdb) print *this
$8 = {<gold::Relobj> = {<gold::Object> = {_vptr.Object = 0x81ff368, name_ = {
static npos = 4294967295,
_M_dataplus = {<std::allocator<char>> =
{<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>},
_M_p = 0x8a28a4c "precompiled_gnuld.a"}}, input_file_ = 0x8a289d8,
offset_ = 0, shnum_ = 4883, is_dynamic_ = false, target_ = 0x8a28be0,
xindex_ = 0x0},
output_sections_ =
{<std::_Vector_base<gold::Output_section*,std::allocator<gold::Output_section*>
>> = {
_M_impl = {<std::allocator<gold::Output_section*>> =
{<__gnu_cxx::new_allocator<gold::Output_section*>> = {<No data fields>}, <No
data fields>},
_M_start = 0x8a61758, _M_finish = 0x8a663a4,
_M_end_of_storage = 0x8a663a4}}, <No data fields>},
map_to_relocatable_relocs_ = 0x8c344a0, object_merge_map_ = 0x0,
relocs_must_follow_section_writes_ = false},
static ehdr_size = <optimized out>, static shdr_size = <optimized out>,
static sym_size = <optimized out>, elf_file_ = {
static ehdr_size = <optimized out>, static phdr_size = <optimized out>,
static shdr_size = <optimized out>, static sym_size = <optimized out>,
static rel_size = <optimized out>, static rela_size = <optimized out>,
file_ = 0x8a28ab0, shoff_ = 1478528, shnum_ = 4883, shstrndx_ = 4880,
large_shndx_offset_ = 0}, symtab_shndx_ = 4881,
local_symbol_count_ = 4301, output_local_symbol_count_ = 416,
output_local_dynsym_count_ = 0,
symbols_ = {<std::_Vector_base<gold::Symbol*,std::allocator<gold::Symbol*> >>
= {
_M_impl = {<std::allocator<gold::Symbol*>> =
{<__gnu_cxx::new_allocator<gold::Symbol*>> = {<No data fields>}, <No data
fields>}, _M_start = 0x8a57eb8,
_M_finish = 0x8a5d9b8,
_M_end_of_storage = 0x8a5d9b8}}, <No data fields>},
defined_count_ = 5786, local_symbol_offset_ = 1680988,
local_dynsym_offset_ = 0,
local_values_ =
{<std::_Vector_base<gold::Symbol_value<32>,std::allocator<gold::Symbol_value<32>
> >> = {
_M_impl = {<std::allocator<gold::Symbol_value<32> >> =
{<__gnu_cxx::new_allocator<gold::Symbol_value<32> >> = {<No data fields>}, <No
data fields>},
_M_start = 0x8a471e0, _M_finish = 0x8a57eb0,
_M_end_of_storage = 0x8a57eb0}}, <No data fields>},
local_got_offsets_ = {<std::tr1::_Hashtable<unsigned int,std::pair<const
unsigned int, gold::Got_offset_list*>,std::allocator<std::pair<const unsigned
int, gold::Got_offset_list*> >,std::_Select1st<std::pair<const unsigned int,
gold::Got_offset_list*> >,std::equal_to<unsigned int>,std::tr1::hash<unsigned
int>,std::tr1::__detail::_Mod_range_hashing,std::tr1::__detail::_Default_ranged_hash,std::tr1::__detail::_Prime_rehash_policy,false,false,true>>
=
{<std::tr1::__detail::_Rehash_base<std::tr1::__detail::_Prime_rehash_policy,std::tr1::_Hashtable<unsigned
int, std::pair<const unsigned int, gold::Got_offset_list*>,
std::allocator<std::pair<const unsigned int, gold::Got_offset_list*> >,
std::_Select1st<std::pair<const unsigned int, gold::Got_offset_list*> >,
std::equal_to<unsigned int>, std::tr1::hash<unsigned int>,
std::tr1::__detail::_Mod_range_hashing,
std::tr1::__detail::_Default_ranged_hash,
std::tr1::__detail::_Prime_rehash_policy, false, false, true> >> = {<No data
fields>}, <std::tr1::__detail::_Hash_code_base<unsigned int,std::pair<const
unsigned int, gold::Got_offset_list*>,std::_Select1st<std::pair<const unsigned
int, gold::Got_offset_list*> >,std::equal_to<unsigned
int>,std::tr1::hash<unsigned
int>,std::tr1::__detail::_Mod_range_hashing,std::tr1::__detail::_Default_ranged_hash,false>>
= {
_M_extract = {<std::unary_function<std::pair<const unsigned int,
gold::Got_offset_list*>,const unsigned int>> = {<No data fields>}, <No data
fields>},
_M_eq = {<std::binary_function<unsigned int,unsigned int,bool>> = {<No
data fields>}, <No data fields>},
_M_h1 = {<std::unary_function<unsigned int,unsigned int>> = {<No data
fields>}, <No data fields>},
_M_h2 = {<No data fields>}}, <std::tr1::__detail::_Map_base<unsigned
int,std::pair<const unsigned int,
gold::Got_offset_list*>,std::_Select1st<std::pair<const unsigned int,
gold::Got_offset_list*> >,true,std::tr1::_Hashtable<unsigned int,
std::pair<const unsigned int, gold::Got_offset_list*>,
std::allocator<std::pair<const unsigned int, gold::Got_offset_list*> >,
std::_Select1st<std::pair<const unsigned int, gold::Got_offset_list*> >,
std::equal_to<unsigned int>, std::tr1::hash<unsigned int>,
std::tr1::__detail::_Mod_range_hashing,
std::tr1::__detail::_Default_ranged_hash,
std::tr1::__detail::_Prime_rehash_policy, false, false, true> >> = {<No data
fields>},
_M_node_allocator =
{<__gnu_cxx::new_allocator<std::tr1::__detail::_Hash_node<std::pair<const
unsigned int, gold::Got_offset_list*>, false> >> = {<No data fields>}, <No data
fields>}, _M_buckets = 0x8a28ba8, _M_bucket_count = 11,
_M_element_count = 0, _M_rehash_policy = {_M_max_load_factor = 1,
_M_growth_factor = 2, _M_next_resize = 11}}, <No data fields>},
section_offsets_ = {<std::_Vector_base<unsigned int,std::allocator<unsigned
int> >> = {
_M_impl = {<std::allocator<unsigned int>> =
{<__gnu_cxx::new_allocator<unsigned int>> = {<No data fields>}, <No data
fields>}, _M_start = 0x8a663a8,
_M_finish = 0x8a6aff4,
_M_end_of_storage = 0x8a6aff4}}, <No data fields>},
kept_comdat_sections_ = {_M_t = {
_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<const unsigned
int, gold::Sized_relobj<32, false>::Kept_comdat_section*> > >> =
{<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<const unsigned int,
gold::Sized_relobj<32, false>::Kept_comdat_section*> > >> = {<No data fields>},
<No data fields>},
_M_key_compare = {<std::binary_function<unsigned int,unsigned int,bool>>
= {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red,
_M_parent = 0x0, _M_left = 0x8a28b70, _M_right = 0x8a28b70},
_M_node_count = 0}}}, comdat_groups_ = {_M_t = {
_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<const unsigned
int, std::tr1::unordered_map<std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, unsigned int, std::tr1::hash<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::equal_to<std::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::allocator<std::pair<conststd::basic_string<char,
std::char_traits<char>, std::allocator<char> >, unsigned int> >, false>*> > >> =
{<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<const unsigned int,
std::tr1::unordered_map<std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, unsigned int, std::tr1::hash<std::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::equal_to<std::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char,
std::char_traits<char>, std::allocator<char> >, unsigned int> >, false>*> > >> =
{<No data fields>}, <No data fields>},
_M_key_compare = {<std::binary_function<unsigned int,unsigned int,bool>>
= {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red,
_M_parent = 0x8ac7b10, _M_left = 0x8a253a0, _M_right = 0x8bc1a80},
_M_node_count = 1938}}}, has_eh_frame_ = true}
(gdb) up
#3 0x08064a4c in gold::relocate_for_relocatable<32, false, 9> (
relinfo=0xbff09670, prelocs=0xb7e45128 "h\v", reloc_count=4329,
output_section=0x8c340a0, offset_in_output_section=0, rr=0x8c987f0,
view=0xb7d1aff8 "\030", view_address=0, reloc_view=0xb7d78a64 "\022",
reloc_view_size=34632) at ../../binutils-2.19/gold/target-reloc.h:479
479 new_symndx = object->symtab_index(r_sym);
(gdb) l
474 if (r_sym < local_count)
475 {
476 switch (strategy)
477 {
478 case Relocatable_relocs::RELOC_COPY:
479 new_symndx = object->symtab_index(r_sym);
480 gold_assert(new_symndx != -1U);
481 break;
482
483 case Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA:
Hope this helps.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=7091
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