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s390: Add DT_JMPREL pointing to .rela.[i]plt with static-pie

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In static-pie case, there are IRELATIVE-relocs in
.rela.iplt (htab->irelplt), which will later be grouped
to .rela.plt.  On s390, the IRELATIVE relocations are
always located in .rela.iplt - even for non-static case.
Ensure that DT_JMPREL, DT_PLTRELA, DT_PLTRELASZ is added
to the dynamic section even if htab->srelplt->size == 0.
See _bfd_elf_add_dynamic_tags in bfd/elflink.c.

bfd/
	elf64-s390.c (elf_s390_size_dynamic_sections):
	Enforce DT_JMPREL via htab->elf.dt_jmprel_required.
This commit is contained in:
Stefan Liebler
2022-04-28 14:30:55 +02:00
committed by Andreas Krebbel
parent 26b1426577
commit d942d8db12
1 changed files with 14 additions and 1 deletions
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15
bfd/elf64-s390.c
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@ -1876,7 +1876,20 @@ elf_s390_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
else if (startswith (bfd_section_name (s), ".rela"))
{
if (s->size != 0 && s != htab->elf.srelplt)
relocs = true;
{
relocs = true;
if (s == htab->elf.irelplt)
{
/* In static-pie case, there are IRELATIVE-relocs in
.rela.iplt (htab->irelplt), which will later be grouped
to .rela.plt. On s390, the IRELATIVE relocations are
always located in .rela.iplt - even for non-static case.
Ensure that DT_JMPREL, DT_PLTRELA, DT_PLTRELASZ is added
to the dynamic section even if htab->srelplt->size == 0.
See _bfd_elf_add_dynamic_tags in bfd/elflink.c. */
htab->elf.dt_jmprel_required = true;
}
}
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */