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;
}
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