[Bug binutils/16212] New: Linaro linker fails on BFD assertion, no details provided

[ttmost at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=16212

            Bug ID: 16212
           Summary: Linaro linker fails on BFD assertion, no details
                    provided
           Product: binutils
           Version: 2.23
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: ttmost at gmail dot com

Hi,

I'm trying to use Linaro's toolchain, which reports for some reason a
BFD_ASSERT on line 4104 of elf.c. After looking at the source code, it seems
there's currently a bug there, here is the relevant source code of elf.c
(starting at line 4080 of the source version).

In the loop first_tls gets assigned from s because masking it with
SEC_THREAD_LOCAL returns 1. Continuing to the next block of code, we look at
firs_tls's flag and return an ASSERT. Obviously the ASSERT will happen as
first_tls->flags & SEC_THREAD_LOCAL == 1. I suppose this is a bug.
I'm not really sure how to reproduce it.

  if (s->flags & SEC_THREAD_LOCAL)
        {
          if (! tls_count)
        first_tls = s;
          tls_count++;
        }
    }

      /* If there are any SHF_TLS output sections, add PT_TLS segment.  */
      if (tls_count > 0)
    {
      amt = sizeof (struct elf_segment_map);
      amt += (tls_count - 1) * sizeof (asection *);
      m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
      if (m == NULL)
        goto error_return;
      m->next = NULL;
      m->p_type = PT_TLS;
      m->count = tls_count;
      /* Mandated PF_R.  */
      m->p_flags = PF_R;
      m->p_flags_valid = 1;
      for (i = 0; i < (unsigned int) tls_count; ++i)
        {
          BFD_ASSERT (first_tls->flags & SEC_THREAD_LOCAL);
          m->sections[i] = first_tls;
          first_tls = first_tls->next;
        }

      *pm = m;
      pm = &m->next;
    }

-- 
You are receiving this mail because:
You are on the CC list for the bug.