* archive.cc (Archive::add_symbols): Check for a version attached

	to the symbol name in the archive map.
	* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_11.
	(ver_test_11_SOURCES, ver_test_11_DEPENDENCIES): Define.
	(ver_test_11_LDFLAGS, ver_test_11_LDADD): Define.
	(ver_test_11.a): New target.
	* testsuite/Makefile.in: Rebuild.

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 50aaaf6..5e19718 100644 (file)
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,5 +1,13 @@
 2009-03-17  Ian Lance Taylor  <iant@google.com>
 
+       * archive.cc (Archive::add_symbols): Check for a version attached
+       to the symbol name in the archive map.
+       * testsuite/Makefile.am (check_PROGRAMS): Add ver_test_11.
+       (ver_test_11_SOURCES, ver_test_11_DEPENDENCIES): Define.
+       (ver_test_11_LDFLAGS, ver_test_11_LDADD): Define.
+       (ver_test_11.a): New target.
+       * testsuite/Makefile.in: Rebuild.
+
        * configure.ac: Check for chsize and posix_fallocate.  Replace
        ftruncate.
        * ftruncate.c: New file, from gnulib.

diff --git a/gold/archive.cc b/gold/archive.cc
index 73fa676..1d83d6a 100644 (file)
--- a/gold/archive.cc
+++ b/gold/archive.cc
@@ -635,6 +635,8 @@ Archive::add_symbols(Symbol_table* symtab, Layout* layout,
   // Track which symbols in the symbol table we've already found to be
   // defined.
 
+  char* tmpbuf = NULL;
+  size_t tmpbuflen = 0;
   bool added_new_object;
   do
     {
@@ -658,7 +660,40 @@ Archive::add_symbols(Symbol_table* symtab, Layout* layout,
 
          const char* sym_name = (this->armap_names_.data()
                                  + this->armap_[i].name_offset);
-         Symbol* sym = symtab->lookup(sym_name);
+
+         // In an object file, and therefore in an archive map, an
+         // '@' in the name separates the symbol name from the
+         // version name.  If there are two '@' characters, this is
+         // the default version.
+         const char* ver = strchr(sym_name, '@');
+         bool def = false;
+         if (ver != NULL)
+           {
+             size_t symlen = ver - sym_name;
+             if (symlen + 1 > tmpbuflen)
+               {
+                 tmpbuf = static_cast<char*>(realloc(tmpbuf, symlen + 1));
+                 tmpbuflen = symlen + 1;
+               }
+             memcpy(tmpbuf, sym_name, symlen);
+             tmpbuf[symlen] = '\0';
+             sym_name = tmpbuf;
+
+             ++ver;
+             if (*ver == '@')
+               {
+                 ++ver;
+                 def = true;
+               }
+           }
+
+         Symbol* sym = symtab->lookup(sym_name, ver);
+         if (def
+             && (sym == NULL
+                 || !sym->is_undefined()
+                 || sym->binding() == elfcpp::STB_WEAK))
+           sym = symtab->lookup(sym_name, NULL);
+
          if (sym == NULL)
            {
              // Check whether the symbol was named in a -u option.
@@ -687,13 +722,20 @@ Archive::add_symbols(Symbol_table* symtab, Layout* layout,
          if (!this->include_member(symtab, layout, input_objects,
                                    last_seen_offset, mapfile, sym,
                                    why.c_str()))
-           return false;
+           {
+             if (tmpbuf != NULL)
+               free(tmpbuf);
+             return false;
+           }
 
          added_new_object = true;
        }
     }
   while (added_new_object);
 
+  if (tmpbuf != NULL)
+    free(tmpbuf);
+
   input_objects->archive_stop(this);
 
   return true;

diff --git a/gold/testsuite/Makefile.am b/gold/testsuite/Makefile.am
index 9ea4f95..1c699f7 100644 (file)
--- a/gold/testsuite/Makefile.am
+++ b/gold/testsuite/Makefile.am
@@ -819,6 +819,14 @@ ver_test_10.syms: ver_test_10.so
 ver_test_10.so: gcctestdir/ld ver_test_2.o ver_test_10.script
        $(CXXLINK) -Bgcctestdir/ -shared -Wl,--version-script,$(srcdir)/ver_test_10.script ver_test_2.o
 
+check_PROGRAMS += ver_test_11
+ver_test_11_SOURCES = ver_test_main_2.cc
+ver_test_11_DEPENDENCIES = gcctestdir/ld ver_test_11.a
+ver_test_11_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
+ver_test_11_LDADD = ver_test_11.a
+ver_test_11.a: ver_test_1.o ver_test_2.o ver_test_4.o
+       $(TEST_AR) rc $@ $^
+
 check_PROGRAMS += protected_1
 protected_1_SOURCES = \
        protected_main_1.cc protected_main_2.cc protected_main_3.cc

diff --git a/gold/testsuite/Makefile.in b/gold/testsuite/Makefile.in
index 031de7e..56fe7ac 100644 (file)
--- a/gold/testsuite/Makefile.in
+++ b/gold/testsuite/Makefile.in
@@ -256,11 +256,11 @@ check_PROGRAMS = object_unittest$(EXEEXT) binary_unittest$(EXEEXT) \
 # Test symbol versioning.
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am__append_19 = ver_test ver_test_2 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_6 ver_test_8 ver_test_9 \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ protected_1 protected_2 \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ relro_test relro_script_test \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_1 script_test_2 \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ justsyms binary_test \
-@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_3 \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_11 protected_1 \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ protected_2 relro_test \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ relro_script_test script_test_1 \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ script_test_2 justsyms \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ binary_test script_test_3 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_1 \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ thin_archive_test_2
 @GCC_FALSE@script_test_1_DEPENDENCIES = libgoldtest.a ../libgold.a \
@@ -405,6 +405,7 @@ libgoldtest_a_OBJECTS = $(am_libgoldtest_a_OBJECTS)
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_6$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_8$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_9$(EXEEXT) \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_11$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ protected_1$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ protected_2$(EXEEXT) \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ relro_test$(EXEEXT) \
@@ -818,6 +819,10 @@ am__ver_test_SOURCES_DIST = ver_test_main.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am_ver_test_OBJECTS =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_main.$(OBJEXT)
 ver_test_OBJECTS = $(am_ver_test_OBJECTS)
+am__ver_test_11_SOURCES_DIST = ver_test_main_2.cc
+@GCC_TRUE@@NATIVE_LINKER_TRUE@am_ver_test_11_OBJECTS =  \
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_main_2.$(OBJEXT)
+ver_test_11_OBJECTS = $(am_ver_test_11_OBJECTS)
 am__ver_test_2_SOURCES_DIST = ver_test_main_2.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@am_ver_test_2_OBJECTS =  \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ ver_test_main_2.$(OBJEXT)
@@ -913,10 +918,11 @@ SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
        $(two_file_shared_2_test_SOURCES) \
        $(two_file_static_test_SOURCES) two_file_strip_test.c \
        $(two_file_test_SOURCES) $(ver_test_SOURCES) \
-       $(ver_test_2_SOURCES) $(ver_test_6_SOURCES) \
-       $(ver_test_8_SOURCES) $(ver_test_9_SOURCES) \
-       $(weak_alias_test_SOURCES) weak_plt.c $(weak_test_SOURCES) \
-       $(weak_undef_nonpic_test_SOURCES) $(weak_undef_test_SOURCES)
+       $(ver_test_11_SOURCES) $(ver_test_2_SOURCES) \
+       $(ver_test_6_SOURCES) $(ver_test_8_SOURCES) \
+       $(ver_test_9_SOURCES) $(weak_alias_test_SOURCES) weak_plt.c \
+       $(weak_test_SOURCES) $(weak_undef_nonpic_test_SOURCES) \
+       $(weak_undef_test_SOURCES)
 DIST_SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
        basic_static_pic_test.c basic_static_test.c basic_test.c \
        $(am__binary_test_SOURCES_DIST) $(binary_unittest_SOURCES) \
@@ -974,8 +980,9 @@ DIST_SOURCES = $(libgoldtest_a_SOURCES) basic_pic_test.c \
        $(am__two_file_shared_2_test_SOURCES_DIST) \
        $(am__two_file_static_test_SOURCES_DIST) two_file_strip_test.c \
        $(am__two_file_test_SOURCES_DIST) $(am__ver_test_SOURCES_DIST) \
-       $(am__ver_test_2_SOURCES_DIST) $(am__ver_test_6_SOURCES_DIST) \
-       $(am__ver_test_8_SOURCES_DIST) $(am__ver_test_9_SOURCES_DIST) \
+       $(am__ver_test_11_SOURCES_DIST) $(am__ver_test_2_SOURCES_DIST) \
+       $(am__ver_test_6_SOURCES_DIST) $(am__ver_test_8_SOURCES_DIST) \
+       $(am__ver_test_9_SOURCES_DIST) \
        $(am__weak_alias_test_SOURCES_DIST) weak_plt.c \
        $(am__weak_test_SOURCES_DIST) \
        $(am__weak_undef_nonpic_test_SOURCES_DIST) \
@@ -1442,6 +1449,10 @@ binary_unittest_SOURCES = binary_unittest.cc
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_9_DEPENDENCIES = gcctestdir/ld ver_test_9.so
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_9_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_9_LDADD = ver_test_9.so
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_11_SOURCES = ver_test_main_2.cc
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_11_DEPENDENCIES = gcctestdir/ld ver_test_11.a
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_11_LDFLAGS = -Bgcctestdir/ -Wl,-R,.
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_11_LDADD = ver_test_11.a
 @GCC_TRUE@@NATIVE_LINKER_TRUE@protected_1_SOURCES = \
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ protected_main_1.cc protected_main_2.cc protected_main_3.cc
 
@@ -1791,6 +1802,9 @@ two_file_test$(EXEEXT): $(two_file_test_OBJECTS) $(two_file_test_DEPENDENCIES)
 ver_test$(EXEEXT): $(ver_test_OBJECTS) $(ver_test_DEPENDENCIES) 
        @rm -f ver_test$(EXEEXT)
        $(CXXLINK) $(ver_test_LDFLAGS) $(ver_test_OBJECTS) $(ver_test_LDADD) $(LIBS)
+ver_test_11$(EXEEXT): $(ver_test_11_OBJECTS) $(ver_test_11_DEPENDENCIES) 
+       @rm -f ver_test_11$(EXEEXT)
+       $(CXXLINK) $(ver_test_11_LDFLAGS) $(ver_test_11_OBJECTS) $(ver_test_11_LDADD) $(LIBS)
 ver_test_2$(EXEEXT): $(ver_test_2_OBJECTS) $(ver_test_2_DEPENDENCIES) 
        @rm -f ver_test_2$(EXEEXT)
        $(CXXLINK) $(ver_test_2_LDFLAGS) $(ver_test_2_OBJECTS) $(ver_test_2_LDADD) $(LIBS)
@@ -2442,6 +2456,8 @@ uninstall-am: uninstall-info-am
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_READELF) -s $< >$@ 2>/dev/null
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_10.so: gcctestdir/ld ver_test_2.o ver_test_10.script
 @GCC_TRUE@@NATIVE_LINKER_TRUE@ $(CXXLINK) -Bgcctestdir/ -shared -Wl,--version-script,$(srcdir)/ver_test_10.script ver_test_2.o
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ver_test_11.a: ver_test_1.o ver_test_2.o ver_test_4.o
+@GCC_TRUE@@NATIVE_LINKER_TRUE@ $(TEST_AR) rc $@ $^
 
 @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