[committed] hppa64: Fix relocation handling for global data and a couple of thinkos

[Sven Schnelle]

Hi Dave,

John David Anglin <dave.anglin@bell.net> writes:

> hppa64: Fix relocation handling for global data and a couple of thinkos
>
> This fixes relocation handling in situations where hh->owner and
> hh->sym_indx were not initialized.
>
> 2025-10-08  John David Anglin  <danglin@gcc.gnu.org>
>
> bfd/ChangeLog:
>
> 	PR binutils/6511
> 	* elf64-hppa.c (global_sym_index): New from ia64.
> 	(elf64_hppa_check_relocs): Only set hh->eh.ref_regular if we
> 	have a regular definition.
> 	(elf64_hppa_check_relocs): Add missing NEED_DYNREL to need_entry
> 	assignment.
> 	(elf64_hppa_check_relocs): Stash symbol index and section
> 	earlier.
> 	(allocate_global_data_dlt): Initialize hh->owner and hh->sym_indx
> 	if not initialized.
> 	(allocate_global_data_opd): Likewise.  Remove redundant checks
> 	for NULL hh.
> 	(allocate_dynrel_entries): Check for discarded
> 	hppa_info->other_rel_sec section.  Add assert rent->sec->owner
> 	== hh->owner.
> 	(elf64_hppa_finalize_dynreloc): Check for discarded
> 	hppa_info->other_rel_sec section.
> 	(elf_hppa_final_link_relocate): Return bfd_reloc_ok if we
> 	have R_PARISC_NONE relocation.

I see a linux boot failure with this patch (addresses added for debugging):

Autobooting Linux kernel which was loaded by qemu...

Decompressing Linux... Bootcode overlaps kernel code (_startcode_end=0x150c000 kernel_addr=0x100000)done.
Booting the kernel.
<hangs here>
QEMU: Terminated

I haven't investigated yet (busy with other stuff...), but it's easily
reproducable with defconfig in linux + binutils master. It happens both
on Hardware and qemu.