[Bug gold/7091] New: Internal error on object generated by gnuld

[stefan dot becker at nokia dot com]

In our SW build we have a pre-compiled library that is linked with gnuld:

  ld -r -EL -o precompiled.a module1.o module2.o ...


When this library is linked together with other objects with gold I get an
internal error:

$ build/gold/ld-new -r -o test.a precompiled_gnuld.a
build/gold/ld-new: internal error in output_symtab_index, at
../../binutils-2.19/gold/object.h:968

If I create precompiled.a with gold from the same object files everything works
fine. The resulting libraries are different:

-rw-r--r-- 1 user group 2332299 2008-12-10 12:01 precompiled_gnuld.a
-rw-r--r-- 1 user group 2317681 2008-12-10 12:36 precompiled_gold.a


"--debug all" shows:

/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Dir_cache_task /lib                                                        
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Dir_cache_task /lib                                                        
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Dir_cache_task /usr/lib                                                    
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Dir_cache_task /usr/lib                                                    
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Read_symbols precompiled_gnuld.a                                           
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new: Attempt to open
precompiled_gnuld.a succeeded                                                   
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Read_symbols precompiled_gnuld.a                                           
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Add_symbols precompiled_gnuld.a                                            
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Add_symbols precompiled_gnuld.a                                            
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Task_function Middle_runner                                                
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new: Dumping linker
script                                                                          
 
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Task_function Middle_runner                                                
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Read_relocs precompiled_gnuld.a                                            
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Read_relocs precompiled_gnuld.a                                            
  
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Scan_relocs precompiled_gnuld.a
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Scan_relocs precompiled_gnuld.a
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Task_function Layout_task_runner
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Task_function Layout_task_runner
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Write_symbols_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Write_symbols_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Write_sections_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Write_sections_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Write_data_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 completed
task Write_data_task
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new:   0 running  
task Relocate_task precompiled_gnuld.a
/disks/sausers9/stefanb/workarea/gold_linker/build/gold/ld-new: internal error
in output_symtab_index, at ../../binutils-2.19/gold/object.h:968


GDB shows the following backtrace when the assert happens:

#0  gold::do_gold_unreachable (                                                 
    filename=0x81a79a4 "../../binutils-2.19/gold/object.h", lineno=968,         
    function=0x81a7fe0 "output_symtab_index")
    at ../../binutils-2.19/gold/gold.cc:84
#1  0x0806017f in gold::relocate_for_relocatable<32, false, 9> (
    relinfo=0xbfac42b0, prelocs=0xb7fffe00 "\022", reloc_count=4329,
    output_section=0xa3c00a0, offset_in_output_section=0, rr=0xa4247f0,
    view=0xb7ed5ff8 "\030", view_address=0, reloc_view=0xb7f33a64 "\022",
    reloc_view_size=34632) at ../../binutils-2.19/gold/object.h:968
#2  0x08123348 in gold::Sized_relobj<32, false>::relocate_sections (
    this=0xa1b4ab0, address@hidden, symtab=0xbfac5ca0, layout=0xbfac5b14,
    pshdrs=0xb8080f80 "", pviews=0xbfac4330)
    at ../../binutils-2.19/gold/reloc.cc:803
#3  0x08125e67 in gold::Sized_relobj<32, false>::do_relocate (this=0xa1b4ab0,
    address@hidden, symtab=0xbfac5ca0, layout=0xbfac5b14, of=0xa52e6f0)
    at ../../binutils-2.19/gold/reloc.cc:486
#4  0x0811d421 in gold::Relocate_task::run (this=0xa52e7d8)
    at ../../binutils-2.19/gold/object.h:628
#5  0x0815b8e7 in gold::Workqueue::find_and_run_task (this=0xbfac5e80,
    thread_number=0) at ../../binutils-2.19/gold/workqueue.cc:314
#6  0x0815bb8c in gold::Workqueue::process (this=0xbfac5e80, thread_number=0)
    at ../../binutils-2.19/gold/workqueue.cc:480
#7  0x0804ac04 in main (argc=-1079227524, argv=0x1)
    at ../../binutils-2.19/gold/main.cc:219


As I'm not allowed to distribute the precompiled library I hope you can tell me
what additional information I would need to collect for your error analysis.

-- 
           Summary: Internal error on object generated by gnuld
           Product: binutils
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
        AssignedTo: ian at airs dot com
        ReportedBy: stefan dot becker at nokia dot com
                CC: bug-binutils at gnu dot org
  GCC host triplet: i386-redhat-linux-gnu


http://sourceware.org/bugzilla/show_bug.cgi?id=7091

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