[Bug gold/12525] New: gold SEGV linking libgcc_s.so.1 on Solaris 11/x86

[ro at TechFak dot Uni-Bielefeld.DE]

http://sourceware.org/bugzilla/show_bug.cgi?id=12525

           Summary: gold SEGV linking libgcc_s.so.1 on Solaris 11/x86
           Product: binutils
           Version: 2.22 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
        AssignedTo: address@hidden
        ReportedBy: address@hidden


I've just tried to bootstrap GCC mainline with gold from either binutils 2.21
or
HEAD, with no success: the first time gold is called (to link libgcc_s.so.1),
it
first errs parsing the command line and then SEGVs:

$ gold-2.21 --eh-frame-hdr -V -G -dy -z text -m elf_i386 -Y
P,/usr/ccs/lib:/usr/lib -Qy -o ./libgcc_s.so.1.tmp /usr/lib/crti.o
/usr/lib/values-Xa.o
/var/gcc/regression/trunk/11-gcc-gas-gold/build/./gcc/crtbegin.o
-L/var/gcc/regression/trunk/11-gcc-gas-gold/build/./gcc -L.
--soname=libgcc_s.so.1 --version-script=libgcc.map _muldi3_s.o _negdi2_s.o
_lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o
_clear_cache_s.o _enable_execute_stack_s.o _trampoline_s.o __main_s.o
_absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o
_mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o
_ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o
_popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o
_paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulsc3_s.o
_muldc3_s.o _mulxc3_s.o _multc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o
_divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o
_fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o
_fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o
_floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o
_udivdi3_s.o _umoddi3_s.o _udiv_w_sdiv_s.o _udivmoddi4_s.o addtf3_s.o
divtf3_s.o eqtf2_s.o getf2_s.o letf2_s.o multf3_s.o negtf2_s.o subtf3_s.o
unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o
fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o extendsftf2_s.o
extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o
tf-signs_s.o unwind-dw2_s.o unwind-dw2-fde-glibc_s.o unwind-sjlj_s.o
gthr-gnat_s.o unwind-c_s.o emutls_s.o -lc
/var/gcc/regression/trunk/11-gcc-gas-gold/build/./gcc/crtend.o /usr/lib/crtn.o
GNU gold (GNU Binutils 2.21) 1.10
  Supported targets:
   elf32-i386
   elf32-i386-freebsd
   elf64-x86-64
   elf64-x86-64-freebsd
   elf64-sparc
   elf32-sparc
   elf64-powerpcle
   elf64-powerpc
   elf32-powerpcle
   elf32-powerpc
   elf32-bigarm
   elf32-littlearm
gold-2.21: error: cannot open text: No such file or directory
Bus Error

The cannot open text is obviously suspicious: -z text involves no file `text'.
The SEGV (if run under gdb) happens here:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1 (LWP 1)]
gold::Symbol_table::sized_write_symbol<32, false> (this=0x8046d28,
sym=0x8622798, value=0, shndx=65521, binding=elfcpp::STB_GLOBAL,
pool=0x8046b80, p=0xfe52e9b4 <Address 0xfe52e9b4 out of bounds>) at
/vol/gnu/src/binutils/binutils-2.21/gold/symtab.cc:2865
(gdb) where
#0  gold::Symbol_table::sized_write_symbol<32, false> (this=0x8046d28,
sym=0x8622798, value=0, shndx=65521, binding=elfcpp::STB_GLOBAL,
pool=0x8046b80, p=0xfe52e9b4 <Address 0xfe52e9b4 out of bounds>) at
/vol/gnu/src/binutils/binutils-2.21/gold/symtab.cc:2865
#1  0x082dc331 in gold::Symbol_table::sized_write_globals<32, false>
(this=0x8046d28, sympool=0x8046b80, dynpool=0x8046bc4, symtab_xindex=0x0,
dynsym_xindex=0x0, of=0x858a758) at
/vol/gnu/src/binutils/binutils-2.21/gold/symtab.cc:2832
#2  0x081fc9e8 in gold::Write_symbols_task::run (this=0x8645418) at
/vol/gnu/src/binutils/binutils-2.21/gold/layout.cc:4346
#3  0x082eb52d in gold::Workqueue::find_and_run_task (this=0x804703c,
thread_number=0) at /vol/gnu/src/binutils/binutils-2.21/gold/workqueue.cc:319
#4  0x082eb8e4 in gold::Workqueue::process (this=0x804703c, thread_number=0) at
/vol/gnu/src/binutils/binutils-2.21/gold/workqueue.cc:495
#5  0x081303a0 in main (argc=123, argv=0x804710c) at
/vol/gnu/src/binutils/binutils-2.21/gold/main.cc:247  

(gdb) p sym
$8 = (gold::Sized_symbol<32> *) 0x8622798
(gdb) p *sym
$9 = {<gold::Symbol> = {name_ = 0x8565233 "GCC_4.5.0", version_ = 0x8565233
"GCC_4.5.0", u_ = {from_object = {object = 0x0, shndx = 0}, in_output_data =
{output_data = 0x0, offset_is_from_end = false}, in_output_segment =
{output_segment = 0x0, offset_base = gold::Symbol::SEGMENT_START}},
symtab_index_ = 395, dynsym_index_ = 153, got_offsets_ = {got_type_ =
4294967295, got_offset_ = 0, got_next_ = 0x0}, plt_offset_ = 4294967295, type_
= elfcpp::STT_OBJECT, binding_ = elfcpp::STB_GLOBAL, visibility_ =
elfcpp::STV_DEFAULT, nonvis_ = 0, source_ = gold::Symbol::IS_CONSTANT, is_def_
= true, is_forwarder_ = false, has_alias_ = false, needs_dynsym_entry_ = true,
in_reg_ = true, in_dyn_ = false, needs_dynsym_value_ = false, has_warning_ =
false, is_copied_from_dynobj_ = false, is_forced_local_ = false,
is_ordinary_shndx_ = false, in_real_elf_ = true,
is_defined_in_discarded_section_ = false, undef_binding_set_ = false,
undef_binding_weak_ = false}, value_ = 0, symsize_ = 0}

Since my command of C++ is practically non-existant, I don't know how to go
from
here.

binutils/gold were built with either g++ 4.4.2 and -g -O2 or g++ 4.5.2 and
-g3 -O0, but this makes no difference.

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