From FEDORA_PATCHES Mon Sep 17 00:00:00 2001

From: Jan Kratochvil <jan.kratochvil@redhat.com>

Date: Fri, 27 Oct 2017 21:07:50 +0200

Subject: gdb-6.5-sharedlibrary-path.patch

;; Fix TLS symbols resolving for shared libraries with a relative pathname.

;; The testsuite needs `gdb-6.5-tls-of-separate-debuginfo.patch'.

;;=fedoratest: One should recheck if it is really fixed upstream.

If you provided some relative path to the shared library, such as with

	export LD_LIBRARY_PATH=.

then gdb would fail to match the shared library name during the TLS lookup.

Dropped the workaround/fix for gdb-6.8.50.20081128 - is it still needed?

The testsuite needs `gdb-6.3-bz146810-solib_absolute_prefix_is_empty.patch'.

The testsuite needs `gdb-6.5-tls-of-separate-debuginfo.patch'.

2006-09-01  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* solib-svr4.c (svr4_fetch_objfile_link_map): Match even absolute

	requested pathnames to the internal loaded relative pathnames.

2007-10-16  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Port to GDB-6.7.

2008-02-27  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Port to gdb-6.7.50.20080227.

diff --git a/gdb/testsuite/gdb.threads/tls-sepdebug-main.c b/gdb/testsuite/gdb.threads/tls-sepdebug-main.c

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.threads/tls-sepdebug-main.c

@@ -0,0 +1,31 @@

+/* This testcase is part of GDB, the GNU debugger.

+

+   Copyright 2006 Free Software Foundation, Inc.

+

+   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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

+

+   Please email any bugs, comments, and/or additions to this file to:

+   bug-gdb@prep.ai.mit.edu  */

+

+#include <pthread.h>

+

+extern __thread int var;

+

+int main()

+{

+  /* Ensure we link against pthreads even with --as-needed.  */

+  pthread_testcancel();

+  return var;

+}

diff --git a/gdb/testsuite/gdb.threads/tls-sepdebug-shared.c b/gdb/testsuite/gdb.threads/tls-sepdebug-shared.c

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.threads/tls-sepdebug-shared.c

@@ -0,0 +1,22 @@

+/* This testcase is part of GDB, the GNU debugger.

+

+   Copyright 2006 Free Software Foundation, Inc.

+

+   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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

+

+   Please email any bugs, comments, and/or additions to this file to:

+   bug-gdb@prep.ai.mit.edu  */

+

+__thread int var = 42;

diff --git a/gdb/testsuite/gdb.threads/tls-sepdebug.exp b/gdb/testsuite/gdb.threads/tls-sepdebug.exp

new file mode 100644

--- /dev/null

+++ b/gdb/testsuite/gdb.threads/tls-sepdebug.exp

@@ -0,0 +1,94 @@

+# Copyright 2006 Free Software Foundation, Inc.

+

+# 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

+

+# This test uses gdb_exit and gdb_start, which are not supported

+# on non-extended-remote sessions.

+if {[use_gdb_stub]} {

+    untested "skipping test because of stub"

+    return 0

+}

+

+if $tracelevel then {

+    strace $tracelevel

+}

+

+set testfile tls-sepdebug

+set srcmainfile   ${testfile}-main.c

+set srcsharedfile ${testfile}-shared.c

+

+set binmainfile        [standard_output_file ${testfile}-main]

+set binsharedbase      ${testfile}-shared.so

+set binsharedfile      [standard_output_file ${binsharedbase}]

+set binshareddebugfile [standard_output_file ${binsharedbase}.debug]

+

+# Use explicit -soname as otherwise the full path to the library would get

+# encoded into ${binmainfile} making LD_LIBRARY_PATH tests useless.

+

+# FIXME: gcc dependency (-Wl,-soname).

+

+if  { [gdb_compile_shlib "${srcdir}/${subdir}/${srcsharedfile}" "${binsharedfile}" [list debug additional_flags=-Wl,-soname=${binsharedbase}]] != "" } {

+    untested "Couldn't compile test library"

+    return -1

+}

+

+# eu-strip(1) works fine but it is a part of `elfutils', not `binutils'.

+if 0 then {

+    remote_exec build "eu-strip -f ${binshareddebugfile} ${binsharedfile}"

+} else {

+    remote_exec build "objcopy --only-keep-debug ${binsharedfile} ${binshareddebugfile}"

+    remote_exec build "objcopy --strip-debug ${binsharedfile}"

+    remote_exec build "objcopy --add-gnu-debuglink=${binshareddebugfile} ${binsharedfile}"

+}

+

+# Do not use `shlib=' as it will automatically add also -rpath for gcc.

+

+if  { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcmainfile} ${binsharedfile}" "${binmainfile}" executable {debug}] != "" } {

+    untested "Couldn't compile test program"

+    return -1

+}

+

+# Get things started.

+

+# Test also the proper resolving of relative library names to absolute ones.

+# \$PWD is easy - it is the absolute way

+# ${subdir} would fail on "print var"

+

+set absdir [file dirname [standard_output_file ${binsharedbase}]]

+foreach ld_library_path [list $absdir [relative_filename [pwd] $absdir]] name { absolute relative }  {

+

+    gdb_exit

+    gdb_start

+    ###gdb_reinitialize_dir $srcdir/$subdir

+

+    gdb_test "set env LD_LIBRARY_PATH=$ld_library_path" \

+             "" \

+             "set env LD_LIBRARY_PATH is $name"

+

+    gdb_load ${binmainfile}

+

+    # For C programs, "start" should stop in main().

+

+    gdb_test "start" \

+             "main \\(\\) at .*${srcmainfile}.*" \

+             "start"

+

+    # Check for: Cannot find shared library `/usr/lib/debug/lib/libc-2.4.90.so.debug' in dynamic linker's load module list

+    # as happens with TLS variables and `separate_debug_objfile_backlink'.

+

+    gdb_test "print var" \

+             "\\\$1 = \[0-9\].*" \

+             "print TLS variable from a shared library with $name-directory separate debug info file"

+}