[Bug dynamic-link/18422] New: elf/tst-audit tests fail without PLT entries

["hjl.tools at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18422

            Bug ID: 18422
           Summary: elf/tst-audit tests fail without PLT entries
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: dynamic-link
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

PLT entries aren't required when -z now used.  Linker on master with:


commit 25070364b0ce33eed46aa5d78ebebbec6accec7e
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat May 16 07:00:21 2015 -0700

    Don't generate PLT relocations for now binding

    There is no need for PLT relocations with -z now. We can use GOT
    relocations, which take less space, instead and replace 16-byte .plt
    entres with 8-byte .plt.got entries.

    bfd/

      * elf32-i386.c (elf_i386_check_relocs): Create .plt.got section
      for now binding.
      (elf_i386_allocate_dynrelocs): Use .plt.got section for now
      binding.
      * elf64-x86-64.c (elf_x86_64_check_relocs): Create .plt.got
      section for now binding.
      (elf_x86_64_allocate_dynrelocs): Use .plt.got section for now
      binding.

won't generate PLT entries with -z now and

FAIL: elf/tst-audit1
FAIL: elf/tst-audit10
FAIL: elf/tst-audit2
FAIL: elf/tst-audit3
FAIL: elf/tst-audit4
FAIL: elf/tst-audit5
FAIL: elf/tst-audit6
FAIL: elf/tst-audit7
FAIL: elf/tst-audit8
FAIL: elf/tst-audit9

fail.  Those tests should be built without -z now, even when glibc
is configured with --enable-bind-now.

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