Fix problem where gold does not create base version for executables.

gold/
	PR gold/23268
	* dynobj.cc (Versions::Versions): Change init for needs_base_version_.
	(Versions::record_version): Add verdefs for both shared objects and
	executables.
	(Versions::add_def): Likewise for base version.
	(Versions::add_need): Don't add base version for executables.
	(Versions::version_index): Look up version for both shared objects and
	executables.
	* testsuite/Makefile.am (ver_test_14): New test case.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/ver_test_14.script: New version script.
	* testsuite/ver_test_14.sh: New test script.

gold/ChangeLog

@@ -1,3 +1,18 @@
+2018-06-20  Cary Coutant  <ccoutant@gmail.com>
+
+	PR gold/23268
+	* dynobj.cc (Versions::Versions): Change init for needs_base_version_.
+	(Versions::record_version): Add verdefs for both shared objects and
+	executables.
+	(Versions::add_def): Likewise for base version.
+	(Versions::add_need): Don't add base version for executables.
+	(Versions::version_index): Look up version for both shared objects and
+	executables.
+	* testsuite/Makefile.am (ver_test_14): New test case.
+	* testsuite/Makefile.in: Regenerate.
+	* testsuite/ver_test_14.script: New version script.
+	* testsuite/ver_test_14.sh: New test script.
+
 2018-06-19  Joshua Watt  <jpewhacker@gmail.com>
 	    Cary Coutant  <ccoutant@gmail.com>
 

gold/dynobj.cc

@@ -1439,7 +1439,7 @@ Versions::Versions(const Version_script_info& version_script,
                    Stringpool* dynpool)
   : defs_(), needs_(), version_table_(),
     is_finalized_(false), version_script_(version_script),
-    needs_base_version_(parameters->options().shared())
+    needs_base_version_(true)
 {
   if (!this->version_script_.empty())
     {
@@ -1536,8 +1536,7 @@ Versions::record_version(const Symbol_table* symtab,
 
   if (!sym->is_from_dynobj() && !sym->is_copied_from_dynobj())
     {
-      if (parameters->options().shared())
+      this->add_def(dynpool, sym, version, version_key);
-        this->add_def(dynpool, sym, version, version_key);
     }
   else
     {
@@ -1574,18 +1573,13 @@ Versions::add_def(Stringpool* dynpool, const Symbol* sym, const char* version,
       // find a definition of a symbol with a version which is not
       // in the version script.
       if (parameters->options().shared())
-	{
+	gold_error(_("symbol %s has undefined version %s"),
-	  gold_error(_("symbol %s has undefined version %s"),
+		   sym->demangled_name().c_str(), version);
-		     sym->demangled_name().c_str(), version);
+
-	  if (this->needs_base_version_)
-	    this->define_base_version(dynpool);
-	}
-      else
-	// We only insert a base version for shared library.
-	gold_assert(!this->needs_base_version_);
-	
       // When creating a regular executable, automatically define
       // a new version.
+      if (this->needs_base_version_)
+	this->define_base_version(dynpool);
       Verdef* vd = new Verdef(version, std::vector<std::string>(),
                               false, false, false, false);
       this->defs_.push_back(vd);
@@ -1631,7 +1625,7 @@ Versions::add_need(Stringpool* dynpool, const char* filename, const char* name,
   if (vn == NULL)
     {
       // Create base version definition lazily for shared library.
-      if (this->needs_base_version_)
+      if (parameters->options().shared() && this->needs_base_version_)
 	this->define_base_version(dynpool);
 
       // We have a new filename.
@@ -1715,8 +1709,6 @@ Versions::version_index(const Symbol_table* symtab, const Stringpool* dynpool,
   Key k;
   if (!sym->is_from_dynobj() && !sym->is_copied_from_dynobj())
     {
-      if (!parameters->options().shared())
-        return elfcpp::VER_NDX_GLOBAL;
       k = Key(version_key, 0);
     }
   else

gold/testsuite/Makefile.am

@@ -1873,6 +1873,13 @@ ver_test_13.so: gcctestdir/ld ver_test_13.o ver_test_13.script
 ver_test_13.o: ver_test_13.c
 	$(COMPILE) -c -fpic -o $@ $<
 
+check_SCRIPTS += ver_test_14.sh
+check_DATA += ver_test_14.syms
+ver_test_14.syms: ver_test_14
+	$(TEST_OBJDUMP) -T $< | $(TEST_CXXFILT) >$@
+ver_test_14: gcctestdir/ld ver_test_main.o ver_test_1.so ver_test_2.so ver_test_4.so ver_test_14.script
+	$(CXXLINK) -Bgcctestdir/ -Wl,--version-script,$(srcdir)/ver_test_14.script -Wl,-E -Wl,-R,. ver_test_main.o ver_test_1.so ver_test_2.so ver_test_4.so
+
 check_PROGRAMS += protected_1
 protected_1_SOURCES = \
 	protected_main_1.cc protected_main_2.cc protected_main_3.cc

gold/testsuite/Makefile.in

@@ -479,7 +479,7 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_4.sh ver_test_5.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_7.sh ver_test_8.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_10.sh ver_test_13.sh \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	relro_test.sh \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_14.sh relro_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_matching_test.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	script_test_3.sh \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	script_test_4.sh \
@@ -533,7 +533,8 @@ check_PROGRAMS = $(am__EXEEXT_1) $(am__EXEEXT_2) $(am__EXEEXT_3) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_7.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_8_2.so.syms \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_10.syms \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_13.syms protected_3.err \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_13.syms \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_test_14.syms protected_3.err \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	relro_test.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	ver_matching_test.stdout \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	script_test_3.stdout \
@@ -5794,6 +5795,13 @@ ver_test_13.sh.log: ver_test_13.sh
 	--log-file $$b.log --trs-file $$b.trs \
 	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
 	"$$tst" $(AM_TESTS_FD_REDIRECT)
+ver_test_14.sh.log: ver_test_14.sh
+	@p='ver_test_14.sh'; \
+	b='ver_test_14.sh'; \
+	$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
 relro_test.sh.log: relro_test.sh
 	@p='relro_test.sh'; \
 	b='relro_test.sh'; \
@@ -8700,6 +8708,10 @@ uninstall-am:
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(LINK) -Bgcctestdir/ -shared -Wl,--version-script,$(srcdir)/ver_test_13.script ver_test_13.o
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_13.o: ver_test_13.c
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(COMPILE) -c -fpic -o $@ $<
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_14.syms: ver_test_14
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(TEST_OBJDUMP) -T $< | $(TEST_CXXFILT) >$@
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_14: gcctestdir/ld ver_test_main.o ver_test_1.so ver_test_2.so ver_test_4.so ver_test_14.script
+@GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXLINK) -Bgcctestdir/ -Wl,--version-script,$(srcdir)/ver_test_14.script -Wl,-E -Wl,-R,. ver_test_main.o ver_test_1.so ver_test_2.so ver_test_4.so
 
 @GCC_TRUE@@NATIVE_LINKER_TRUE@protected_1.so: gcctestdir/ld protected_1_pic.o protected_2_pic.o protected_3_pic.o
 @GCC_TRUE@@NATIVE_LINKER_TRUE@	$(CXXLINK) -Bgcctestdir/ -shared protected_1_pic.o protected_2_pic.o protected_3_pic.o

gold/testsuite/ver_test_14.script

@@ -0,0 +1,6 @@
+V1 {
+global:
+  extern "C++" {
+      "t2()"; "t3()"; "t4()";
+  };
+};

gold/testsuite/ver_test_14.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# ver_test_14.sh -- a test case for version scripts
+
+# Copyright (C) 2018 Free Software Foundation, Inc.
+# Written by Cary Coutant <ccoutant@gmail.com>.
+
+# This file is part of gold.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+check()
+{
+    if ! grep -q "$2" "$1"
+    then
+	echo "Did not find expected symbol in $1:"
+	echo "   $2"
+	echo ""
+	echo "Actual output below:"
+	cat "$1"
+	exit 1
+    fi
+}
+
+check ver_test_14.syms "V1  *t2()$"
+check ver_test_14.syms "V1  *t3()$"
+check ver_test_14.syms "V1  *t4()$"
+check ver_test_14.syms "Base  *t4_2a$"
+
+exit 0