forked from mirrors/nixpkgs
80 lines
3 KiB
Diff
80 lines
3 KiB
Diff
commit 8564af037f5c4c6d2744a89497691359205b2bbc
|
|
Author: Shea Levy <shea@shealevy.com>
|
|
Date: Mon Mar 19 10:52:40 2018 -0400
|
|
|
|
Revert "Allow multiply-defined absolute symbols when they have the same value."
|
|
|
|
This reverts commit 5dc824ed42cd173c1525f5abc76f4091f11a4dbc.
|
|
|
|
diff --git a/gold/ChangeLog-2017 b/gold/ChangeLog-2017
|
|
index b2a47710b5..d7ca1b48c0 100644
|
|
--- a/gold/ChangeLog-2017
|
|
+++ b/gold/ChangeLog-2017
|
|
@@ -114,11 +114,6 @@
|
|
(localedir): Define as @localedir@.
|
|
(gnulocaledir, gettextsrcdir): Use @datarootdir@.
|
|
|
|
-2017-11-28 Cary Coutant <ccoutant@gmail.com>
|
|
-
|
|
- * resolve.cc (Symbol_table::resolve): Allow multiply-defined absolute
|
|
- symbols when they have the same value.
|
|
-
|
|
2017-11-28 Cary Coutant <ccoutant@gmail.com>
|
|
|
|
* object.h (class Sized_relobj_file): Remove discarded_eh_frame_shndx_.
|
|
diff --git a/gold/resolve.cc b/gold/resolve.cc
|
|
index 4a5784cf8b..803576bfed 100644
|
|
--- a/gold/resolve.cc
|
|
+++ b/gold/resolve.cc
|
|
@@ -247,28 +247,18 @@ Symbol_table::resolve(Sized_symbol<size>* to,
|
|
Object* object, const char* version,
|
|
bool is_default_version)
|
|
{
|
|
- bool to_is_ordinary;
|
|
- const unsigned int to_shndx = to->shndx(&to_is_ordinary);
|
|
-
|
|
// It's possible for a symbol to be defined in an object file
|
|
// using .symver to give it a version, and for there to also be
|
|
// a linker script giving that symbol the same version. We
|
|
// don't want to give a multiple-definition error for this
|
|
// harmless redefinition.
|
|
+ bool to_is_ordinary;
|
|
if (to->source() == Symbol::FROM_OBJECT
|
|
&& to->object() == object
|
|
- && to->is_defined()
|
|
&& is_ordinary
|
|
+ && to->is_defined()
|
|
+ && to->shndx(&to_is_ordinary) == st_shndx
|
|
&& to_is_ordinary
|
|
- && to_shndx == st_shndx
|
|
- && to->value() == sym.get_st_value())
|
|
- return;
|
|
-
|
|
- // Likewise for an absolute symbol defined twice with the same value.
|
|
- if (!is_ordinary
|
|
- && st_shndx == elfcpp::SHN_ABS
|
|
- && !to_is_ordinary
|
|
- && to_shndx == elfcpp::SHN_ABS
|
|
&& to->value() == sym.get_st_value())
|
|
return;
|
|
|
|
@@ -360,8 +350,8 @@ Symbol_table::resolve(Sized_symbol<size>* to,
|
|
&& (sym.get_st_bind() == elfcpp::STB_WEAK
|
|
|| to->binding() == elfcpp::STB_WEAK)
|
|
&& orig_st_shndx != elfcpp::SHN_UNDEF
|
|
+ && to->shndx(&to_is_ordinary) != elfcpp::SHN_UNDEF
|
|
&& to_is_ordinary
|
|
- && to_shndx != elfcpp::SHN_UNDEF
|
|
&& sym.get_st_size() != 0 // Ignore weird 0-sized symbols.
|
|
&& to->symsize() != 0
|
|
&& (sym.get_st_type() != to->type()
|
|
@@ -372,7 +362,7 @@ Symbol_table::resolve(Sized_symbol<size>* to,
|
|
{
|
|
Symbol_location fromloc
|
|
= { object, orig_st_shndx, static_cast<off_t>(sym.get_st_value()) };
|
|
- Symbol_location toloc = { to->object(), to_shndx,
|
|
+ Symbol_location toloc = { to->object(), to->shndx(&to_is_ordinary),
|
|
static_cast<off_t>(to->value()) };
|
|
this->candidate_odr_violations_[to->name()].insert(fromloc);
|
|
this->candidate_odr_violations_[to->name()].insert(toloc);
|