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[GOLD] Support setting DT_RELACOUNT late

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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.
This commit is contained in:
Alan Modra
2023-06-23 09:38:13 +09:30
parent 027614abf1
commit bdad2ad579
11 changed files with 38 additions and 16 deletions
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3
gold/layout.h
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@@ -950,7 +950,8 @@ class 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);
// Add a target-specific dynamic tag with constant value.
void