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[GOLD] Symbol flag for PowerPC64 localentry:0 tracking

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This patch provides a flag for PowerPC64 ELFv2 use in class Symbol,
and modifies Sized_target::resolve to return whether the symbol has
been resolved.  If not, normal processing continues.  I use this for
PowerPC64 ELFv2 to keep track of whether a symbol has any definition
with non-zero localentry, in order to disable --plt-localentry for
that symbol.

	PR 21847
	* powerpc.cc (Target_powerpc::is_elfv2_localentry0): Test
	non_zero_localentry.
	(Target_powerpc::resolve): New function.
	(powerpc_info): Set has_resolve for 64-bit.
	* target.h (Sized_target::resolve): Return bool.
	* resolve.cc (Symbol_table::resolve): Continue with normal
	processing when target resolve returns false.
	* symtab.h (Symbol::non_zero_localentry, set_non_zero_localentry):
	New accessors.
	(Symbol::non_zero_localentry_): New flag bit.
	* symtab.cc (Symbol::init_fields): Init non_zero_localentry_.
This commit is contained in:
Alan Modra
2017-08-28 16:27:33 +09:30
parent 41e5237748
commit 565ed01a4e
6 changed files with 52 additions and 6 deletions
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4
gold/resolve.cc
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@ -266,8 +266,8 @@ Symbol_table::resolve(Sized_symbol<size>* to,
{
Sized_target<size, big_endian>* sized_target;
sized_target = parameters->sized_target<size, big_endian>();
sized_target->resolve(to, sym, object, version);
return;
if (sized_target->resolve(to, sym, object, version))
return;
}
if (!object->is_dynamic())