[Bug gdb/11786] PIE support may not work for some PIEs

["ppluzhnikov at google dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=11786

--- Comment #7 from Paul Pluzhnikov <ppluzhnikov at google dot com> ---
Would it be reasonable to check NT_GNU_BUILD_ID, and skip the Phdr check
entirely on a match?

(In reply to Jan Kratochvil from comment #6)
> Differently than... bfd ld?  gold vs. ld executables are a different build
> which cannot match / is not guaranteed to match.

The flow here (Google b/10274851) is:

  (gold-linked, PIE) unstripped -> "strip -g" -> stripped -> core

  gdb stripped core    # works, but no debug info :-(
  gdb unstripped core  # fails to relocate the binary :-(

Gold and strip do not agree on p_flags and p_align of GNU_RELRO,
but the "unstripped" and "stripped" *are* exact match.

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