Fix the GOLD linker's generation of relocations for start and stop symbols.
Resolves: #1500898
This commit is contained in:
Nick Clifton
parent
38cc40a5fe
commit
6893f2da6c
153
binutils-2.29.1-gold-start-stop.patch
Normal file
153
binutils-2.29.1-gold-start-stop.patch
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@ -0,0 +1,153 @@
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diff -rup binutils.orig/gold/layout.cc binutils-2.29.1/gold/layout.cc
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--- binutils.orig/gold/layout.cc 2017-10-18 12:00:31.990714767 +0100
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+++ binutils-2.29.1/gold/layout.cc 2017-10-18 12:00:41.351604074 +0100
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@@ -2211,10 +2211,11 @@ Layout::define_section_symbols(Symbol_ta
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0, // symsize
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elfcpp::STT_NOTYPE,
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elfcpp::STB_GLOBAL,
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- elfcpp::STV_DEFAULT,
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+ elfcpp::STV_PROTECTED,
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0, // nonvis
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false, // offset_is_from_end
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- true); // only_if_ref
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+ true, // only_if_ref
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+ true); // must_be_in_reg
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symtab->define_in_output_data(stop_name.c_str(),
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NULL, // version
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@@ -2224,10 +2225,11 @@ Layout::define_section_symbols(Symbol_ta
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0, // symsize
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elfcpp::STT_NOTYPE,
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elfcpp::STB_GLOBAL,
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- elfcpp::STV_DEFAULT,
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+ elfcpp::STV_PROTECTED,
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0, // nonvis
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true, // offset_is_from_end
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- true); // only_if_ref
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+ true, // only_if_ref
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+ true); // must_be_in_reg
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}
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}
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}
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Only in binutils-2.29.1/gold: layout.cc.orig
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diff -rup binutils.orig/gold/symtab.cc binutils-2.29.1/gold/symtab.cc
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--- binutils.orig/gold/symtab.cc 2017-10-18 12:00:31.990714767 +0100
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+++ binutils-2.29.1/gold/symtab.cc 2017-10-18 12:00:41.352604062 +0100
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@@ -1760,7 +1760,9 @@ Sized_symbol<size>*
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Symbol_table::define_special_symbol(const char** pname, const char** pversion,
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bool only_if_ref,
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Sized_symbol<size>** poldsym,
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- bool* resolve_oldsym, bool is_forced_local)
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+ bool* resolve_oldsym,
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+ bool is_forced_local,
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+ bool must_be_in_reg)
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{
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*resolve_oldsym = false;
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*poldsym = NULL;
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@@ -1797,7 +1799,11 @@ Symbol_table::define_special_symbol(cons
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oldsym = this->lookup(*pname, *pversion);
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if (oldsym == NULL && is_default_version)
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oldsym = this->lookup(*pname, NULL);
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- if (oldsym == NULL || !oldsym->is_undefined())
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+ // If the symbol must be defined in a regular object, ignore
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+ // definition from a dynamic object.
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+ if (oldsym == NULL
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+ || (!oldsym->is_undefined()
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+ && (!must_be_in_reg || !oldsym->is_from_dynobj())))
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return NULL;
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*pname = oldsym->name();
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@@ -1916,7 +1922,8 @@ Symbol_table::define_in_output_data(cons
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elfcpp::STV visibility,
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unsigned char nonvis,
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bool offset_is_from_end,
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- bool only_if_ref)
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+ bool only_if_ref,
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+ bool must_be_in_reg)
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{
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if (parameters->target().get_size() == 32)
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{
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@@ -1925,7 +1932,8 @@ Symbol_table::define_in_output_data(cons
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value, symsize, type, binding,
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visibility, nonvis,
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offset_is_from_end,
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- only_if_ref);
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+ only_if_ref,
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+ must_be_in_reg);
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#else
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gold_unreachable();
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#endif
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@@ -1937,7 +1945,8 @@ Symbol_table::define_in_output_data(cons
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value, symsize, type, binding,
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visibility, nonvis,
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offset_is_from_end,
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- only_if_ref);
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+ only_if_ref,
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+ must_be_in_reg);
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#else
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gold_unreachable();
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#endif
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@@ -1962,7 +1971,8 @@ Symbol_table::do_define_in_output_data(
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elfcpp::STV visibility,
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unsigned char nonvis,
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bool offset_is_from_end,
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- bool only_if_ref)
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+ bool only_if_ref,
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+ bool must_be_in_reg)
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{
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Sized_symbol<size>* sym;
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Sized_symbol<size>* oldsym;
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@@ -1975,7 +1985,8 @@ Symbol_table::do_define_in_output_data(
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sym = this->define_special_symbol<size, true>(&name, &version,
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only_if_ref, &oldsym,
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&resolve_oldsym,
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- is_forced_local);
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+ is_forced_local,
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+ must_be_in_reg);
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#else
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gold_unreachable();
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#endif
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@@ -1986,7 +1997,8 @@ Symbol_table::do_define_in_output_data(
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sym = this->define_special_symbol<size, false>(&name, &version,
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only_if_ref, &oldsym,
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&resolve_oldsym,
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- is_forced_local);
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+ is_forced_local,
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+ must_be_in_reg);
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#else
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gold_unreachable();
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#endif
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diff -rup binutils.orig/gold/symtab.h binutils-2.29.1/gold/symtab.h
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--- binutils.orig/gold/symtab.h 2017-10-18 12:00:32.002714624 +0100
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+++ binutils-2.29.1/gold/symtab.h 2017-10-18 12:00:41.352604062 +0100
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@@ -1488,7 +1488,8 @@ class Symbol_table
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Output_data*, uint64_t value, uint64_t symsize,
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elfcpp::STT type, elfcpp::STB binding,
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elfcpp::STV visibility, unsigned char nonvis,
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- bool offset_is_from_end, bool only_if_ref);
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+ bool offset_is_from_end, bool only_if_ref,
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+ bool must_be_in_reg = false);
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// Define a special symbol based on an Output_segment. It is a
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// multiple definition error if this symbol is already defined.
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@@ -1803,7 +1804,8 @@ class Symbol_table
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Sized_symbol<size>*
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define_special_symbol(const char** pname, const char** pversion,
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bool only_if_ref, Sized_symbol<size>** poldsym,
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- bool* resolve_oldsym, bool is_forced_local);
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+ bool* resolve_oldsym, bool is_forced_local,
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+ bool must_be_in_reg = false);
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// Define a symbol in an Output_data, sized version.
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template<int size>
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@@ -1814,7 +1816,8 @@ class Symbol_table
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typename elfcpp::Elf_types<size>::Elf_WXword ssize,
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elfcpp::STT type, elfcpp::STB binding,
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elfcpp::STV visibility, unsigned char nonvis,
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- bool offset_is_from_end, bool only_if_ref);
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+ bool offset_is_from_end, bool only_if_ref,
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+ bool must_be_in_reg = false);
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// Define a symbol in an Output_segment, sized version.
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template<int size>
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Only in binutils-2.29.1/gold: symtab.h.orig
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@ -54,7 +54,7 @@
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Summary: A GNU collection of binary utilities
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Name: %{?cross}binutils%{?_with_debug:-debug}
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Version: 2.29.1
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Release: 2%{?dist}
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Release: 3%{?dist}
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License: GPLv3+
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Group: Development/Tools
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URL: http://sources.redhat.com/binutils
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@ -115,6 +115,12 @@ Patch06: binutils-2.29-skip-rp14918-test-for-arm.patch
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# patch.
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Patch07: binutils-2.29-filename-in-error-messages.patch
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# Purpose: Fix the generation of relocations to handle locating the start
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# and stop symbols of orphan sections when using the GOLD linker.
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# See: BZ 1500898 and PR 22291.
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# Lifetime: Fixed in 2.30.
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Patch08: binutils-2.29.1-gold-start-stop.patch
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#----------------------------------------------------------------------------
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Provides: bundled(libiberty)
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@ -244,6 +250,7 @@ using libelf instead of BFD.
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%patch05 -p1
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%patch06 -p1
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%patch07 -p1
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%patch08 -p1
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# We cannot run autotools as there is an exact requirement of autoconf-2.59.
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@ -643,7 +650,10 @@ exit 0
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#----------------------------------------------------------------------------
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%changelog
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* Tue Sep 26 2017 Nick Clifton <nickc@redhat.com> 2.29.1-2
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* Wed Oct 18 2017 Nick Clifton <nickc@redhat.com> 2.29.1-3
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- Fix the GOLD linker's generation of relocations for start and stop symbols. (#1500898)
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* Thu Sep 28 2017 Nick Clifton <nickc@redhat.com> 2.29.1-2
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- Enable GOLD for PPC64 and s390x. (#1173780)
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- Retire: binutils-2.20.51.0.10-sec-merge-emit.patch.
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(It has been redundant for a long time now...)
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