===================================================================
@@ -186,7 +186,7 @@ tests += restest1 preloadtest loadfail m
tst-tlsalign tst-tlsalign-extern tst-nodelete-opened \
tst-nodelete2 tst-audit11 tst-audit12 tst-dlsym-error tst-noload \
tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \
- tst-debug1 tst-main1 tst-absolute-sym tst-big-note
+ tst-debug1 tst-main1 tst-absolute-sym tst-absolute-zero tst-big-note
# reldep9
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
@@ -273,7 +273,7 @@ modules-names = testobj1 testobj2 testob
tst-latepthreadmod $(tst-tls-many-dynamic-modules) \
tst-nodelete-dlclose-dso tst-nodelete-dlclose-plugin \
tst-main1mod tst-libc_dlvsym-dso tst-absolute-sym-lib \
- tst-big-note-lib
+ tst-absolute-zero-lib tst-big-note-lib
ifeq (yes,$(have-mtls-dialect-gnu2))
tests += tst-gnu2-tls1
@@ -1456,6 +1456,10 @@ LDLIBS-tst-absolute-sym-lib.so = tst-abs
$(objpfx)tst-absolute-sym-lib.so: $(LDLIBS-tst-absolute-sym-lib.so)
$(objpfx)tst-absolute-sym: $(objpfx)tst-absolute-sym-lib.so
+LDLIBS-tst-absolute-zero-lib.so = tst-absolute-zero-lib.lds
+$(objpfx)tst-absolute-zero-lib.so: $(LDLIBS-tst-absolute-zero-lib.so)
+$(objpfx)tst-absolute-zero: $(objpfx)tst-absolute-zero-lib.so
+
# Both the main program and the DSO for tst-libc_dlvsym need to link
# against libdl.
$(objpfx)tst-libc_dlvsym: $(libdl)
===================================================================
@@ -76,6 +76,7 @@ check_match (const char *const undef_nam
unsigned int stt = ELFW(ST_TYPE) (sym->st_info);
assert (ELF_RTYPE_CLASS_PLT == 1);
if (__glibc_unlikely ((sym->st_value == 0 /* No value. */
+ && sym->st_shndx != SHN_ABS
&& stt != STT_TLS)
|| ELF_MACHINE_SYM_NO_MATCH (sym)
|| (type_class & (sym->st_shndx == SHN_UNDEF))))
===================================================================
@@ -0,0 +1,25 @@
+/* BZ #23307 absolute zero symbol calculation shared module.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+extern char absolute;
+
+void *
+get_absolute (void)
+{
+ return &absolute;
+}
===================================================================
@@ -0,0 +1 @@
+"absolute" = 0;
===================================================================
@@ -0,0 +1,38 @@
+/* BZ #23307 absolute zero symbol calculation main executable.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+#include <support/support.h>
+#include <support/test-driver.h>
+
+void *get_absolute (void);
+
+static int
+do_test (void)
+{
+ void *ref = (void *) 0;
+ void *ptr;
+
+ ptr = get_absolute ();
+ if (ptr != ref)
+ FAIL_EXIT1 ("Got %p, expected %p\n", ptr, ref);
+
+ return 0;
+}
+
+#include <support/test-driver.c>