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| author | Alan Modra <amodra@gmail.com> | 2023-06-23 09:38:13 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2023-06-23 21:02:48 +0930 |
| commit | bdad2ad579f7e7a6307f61e67ef70315506a26f6 (patch) | |
| tree | ac16c422e917dfe8cde08116d7c8029c881c40a9 /gold/layout.cc | |
| parent | 027614abf11de9e79a335df4e1f9a788b7ab0063 (diff) | |
| download | gdb-bdad2ad579f7e7a6307f61e67ef70315506a26f6.zip gdb-bdad2ad579f7e7a6307f61e67ef70315506a26f6.tar.gz gdb-bdad2ad579f7e7a6307f61e67ef70315506a26f6.tar.bz2 | |
[GOLD] Support setting DT_RELACOUNT late
PowerPC gold adds relative dynamic relocs in do_relax. These aren't
accounted for in the value set in add_target_dynamic_tags, which is
called before do_relax. Provide a way of setting DT_RELCOUNT and
DT_RELACOUNT at the point where .dynamic is written.
* layout.cc (Layout::add_target_dynamic_tags): Add custom_relcount
parameter. Emit DT_RELCOUNT/RELACOUNT as a custom target handled
dynamic tag if set.
* layout.h(Layout::add_target_dynamic_tags): Update prototype.
* aarch64.cc (Target_aarch64::do_finalize_sections): Adjust
add_target_dynamic_tags call.
* arm.cc (Target_arm::do_finalize_sections): Likewise.
* i386.cc (Target_i386::do_finalize_sections): Likewise.
* mips.cc (Target_mips::do_finalize_sections): Likewise.
* s390.cc (Target_s390::do_finalize_sections): Likewise.
* sparc.cc (Target_sparc::do_finalize_sections): Likewise.
* tilegx.cc (Target_tilegx::do_finalize_sections): Likewise.
* x86_64.cc (Target_x86_64::do_finalize_sections): Likewise.
* powerpc.cc (Target_powerpc::do_finalize_sections): Likewise.
(Target_powerpc::do_dynamic_tag_custom_value): New function.
Diffstat (limited to 'gold/layout.cc')
| -rw-r--r-- | gold/layout.cc | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gold/layout.cc b/gold/layout.cc index a500868..b94855f 100644 --- a/gold/layout.cc +++ b/gold/layout.cc @@ -5138,7 +5138,8 @@ void Layout::add_target_dynamic_tags(bool use_rel, const Output_data* plt_got, const Output_data* plt_rel, const Output_data_reloc_generic* dyn_rel, - bool add_debug, bool dynrel_includes_plt) + bool add_debug, bool dynrel_includes_plt, + bool custom_relcount) { Output_data_dynamic* odyn = this->dynamic_data_; if (odyn == NULL) @@ -5203,11 +5204,15 @@ Layout::add_target_dynamic_tags(bool use_rel, const Output_data* plt_got, if (parameters->options().combreloc() && have_dyn_rel) { size_t c = dyn_rel->relative_reloc_count(); - if (c > 0) - odyn->add_constant((use_rel - ? elfcpp::DT_RELCOUNT - : elfcpp::DT_RELACOUNT), - c); + if (c != 0) + { + elfcpp::DT tag + = use_rel ? elfcpp::DT_RELCOUNT : elfcpp::DT_RELACOUNT; + if (custom_relcount) + odyn->add_custom(tag); + else + odyn->add_constant(tag, c); + } } } |