We were failing to add the offsets of the containing struct/union
in this case, leading to all offsets being relative to the unnamed
struct/union itself.
libctf/
PR libctf/30264
* ctf-types.c (ctf_member_info): Add the offset of the unnamed
member of the current struct as necessary.
* testsuite/libctf-lookup/unnamed-field-info*: New test.
If no suitable qsort_r is found in libc, we fall back to an
implementation in ctf-qsort.c. But this implementation routinely calls
the comparison function with two identical arguments. The comparison
function that ensures that the order of output types is stable is not
ready for this, misinterprets it as a type appearing more that once (a
can-never-happen condition) and fails with an assertion failure.
Fixed, audited for further instances of the same failure (none found)
and added a no-qsort test to my regular testsuite run.
libctf/:
PR libctf/30013
* ctf-dedup.c (sort_output_mapping): Inputs are always equal to
themselves.
We can't free "internal" on errors, since bfd_coff_swap_sym_in may
call bfd_alloc. For example, _bfd_XXi_swap_sym_in may even create new
sections, which use bfd_alloc'd memory. If "internal" is freed, all
more recently bfd_alloc'd memory is also freed.
* coffgen.c (coff_get_normalized_symtab): Don't bfd_release on
error.
(cherry picked from commit bcefc6be97)
glibc's ld.so ignores local dynamic symbols. It's been that way
forever. We therefore can't use them on dynamic relocations. Fixing
that problem uncovered another problem in sorting of dynamic relocs,
caused no doubt by copying make_iplt_section (where we don't want
reloc sorting by the generic gold function, we want iplt relocs last)
to make_lplt_section (where we do want sorting).
PR 30217
* powerpc.cc (branch_needs_plt_entry): New function.
(Target_powerpc::plt_off): Use it here..
(Target_powerpc::Scan::global): ..and here to correct PLT16 reloc
handling for forced-local global symbols.
(Output_data_plt_powerpc::add_entry): Rename "stash"
parameter "is_local". Emit relative relocs for globals that
are forced local, and don't set_needs_dynsym_entry.
(Target_powerpc::make_lplt_section): Don't create a separate
reloc section, use rela_dyn.
(Target_powerpc::make_brlt_section): Likewise.
(cherry picked from commit 0961e63157)
PR 30198
* coff-x86_64.c (coff_amd64_reloc): Set *error_message when
returning bfd_reloc_dangerous. Also check that __ImageBase is
defined before accessing h->u.def.
(cherry picked from commit 889d15d574)
The segfault was a symptom of messing with the absolute section next
field, confusing bfd_section_removed_from_list in linker.c:fix_syms.
That's not all that was going wrong. The INSERT list of output
sections was being inserted into itself, ie. lost from the main
list of linker statements.
PR 30155
* ldlang.c (process_insert_statements): Handle pathological
case of the insert script being inserted before the first
output section statement in the default script.
(output_prev_sec_find): Don't test section owner here.
(insert_os_after): Change parameter to a list union pointer.
(lang_insert_orphan): Test section owner here and adjust
insert_os_after call.
(cherry picked from commit 18e7a6587e)
PowerPC ELF always uses bfd_arch_powerpc, so we shouldn't allow the
gas -mpwr, -mpwr2 or -mpwrx options to choose bfd_arch_rs6000.
Given the possible values of ppc_cpu, I think the as_fatal at the end
of ppc_arch will never be reached, so it can be deleted and the code
simplified a little.
PR 30046
* config/tc-ppc.c (ppc_arch): Return bfd_arch_powerpc for ELF.
Delete dead code.
(cherry picked from commit 4d826e132c)
When using a bss-plt we'll always trigger the RWX warning, which
disturbs gcc test results. On the other hand, there may be reason to
want the warning when gcc is configured with --enable-secureplt.
So turning off the warning entirely for powerpc might not be the best
solution. Instead, we'll turn off the warning whenever a bss-plt is
generated, unless the user explicitly asked for the warning.
bfd/
* elf32-ppc.c (ppc_elf_select_plt_layout): Set
no_warn_rwx_segments on generating a bss plt, unless explicity
enabled by the user. Also show the bss-plt warning when
--warn-rwx-segments is given without --bss-plt.
include/
* bfdlink.h (struct bfd_link_info): Add user_warn_rwx_segments.
ld/
* lexsup.c (parse_args): Set user_warn_rwx_segments.
* testsuite/ld-elf/elf.exp: Pass --secure-plt for powerpc to
the rwx tests.
(cherry picked from commit 8478900290)
