gdb/gdb-6.8-bz442765-threaded-exec-test.patch

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-6.8-bz442765-threaded-exec-test.patch

;; Test various forms of threads tracking across exec() (BZ 442765).
;;=fedoratest

Test various forms of threads tracking across exec(2).

diff --git a/gdb/testsuite/gdb.threads/threaded-exec.c b/gdb/testsuite/gdb.threads/threaded-exec.c
new file mode 100644
--- /dev/null
+++ b/gdb/testsuite/gdb.threads/threaded-exec.c
@@ -0,0 +1,147 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2007 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.  */
+
+#include <stddef.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#ifdef THREADS
+
+# include <pthread.h>
+
+static void *
+threader (void *arg)
+{
+  return NULL;
+}
+
+#endif
+
+int
+main (int argc, char **argv)
+{
+  char *exec_nothreads, *exec_threads, *cmd;
+  int phase;
+  char phase_s[8];
+
+  setbuf (stdout, NULL);
+
+  if (argc != 4)
+    {
+      fprintf (stderr, "%s <non-threaded> <threaded> <phase>\n", argv[0]);
+      return 1;
+    }
+
+#ifdef THREADS
+  puts ("THREADS: Y");
+#else
+  puts ("THREADS: N");
+#endif
+  exec_nothreads = argv[1];
+  printf ("exec_nothreads: %s\n", exec_nothreads);
+  exec_threads = argv[2];
+  printf ("exec_threads: %s\n", exec_threads);
+  phase = atoi (argv[3]);
+  printf ("phase: %d\n", phase);
+
+  /* Phases: threading
+     0: N -> N
+     1: N -> Y
+     2: Y -> Y
+     3: Y -> N
+     4: N -> exit  */
+
+  cmd = NULL;
+
+#ifndef THREADS
+  switch (phase)
+    {
+    case 0:
+      cmd = exec_nothreads;
+      break;
+    case 1:
+      cmd = exec_threads;
+      break;
+    case 2:
+      fprintf (stderr, "%s: We should have threads for phase %d!\n", argv[0],
+	       phase);
+      return 1;
+    case 3:
+      fprintf (stderr, "%s: We should have threads for phase %d!\n", argv[0],
+	       phase);
+      return 1;
+    case 4:
+      return 0;
+    default:
+      assert (0);
+    }
+#else	/* THREADS */
+  switch (phase)
+    {
+    case 0:
+      fprintf (stderr, "%s: We should not have threads for phase %d!\n",
+	       argv[0], phase);
+      return 1;
+    case 1:
+      fprintf (stderr, "%s: We should not have threads for phase %d!\n",
+	       argv[0], phase);
+      return 1;
+    case 2:
+      cmd = exec_threads;
+      {
+	pthread_t t1;
+	int i;
+
+	i = pthread_create (&t1, NULL, threader, (void *) NULL);
+	assert (i == 0);
+	i = pthread_join (t1, NULL);
+	assert (i == 0);
+      }
+      break;
+    case 3:
+      cmd = exec_nothreads;
+      {
+	pthread_t t1;
+	int i;
+
+	i = pthread_create (&t1, NULL, threader, (void *) NULL);
+	assert (i == 0);
+	i = pthread_join (t1, NULL);
+	assert (i == 0);
+      }
+      break;
+    case 4:
+      fprintf (stderr, "%s: We should not have threads for phase %d!\n",
+	       argv[0], phase);
+      return 1;
+    default:
+      assert (0);
+    }
+#endif	/* THREADS */
+
+  assert (cmd != NULL);
+
+  phase++;
+  snprintf (phase_s, sizeof phase_s, "%d", phase);
+
+  execl (cmd, cmd, exec_nothreads, exec_threads, phase_s, NULL);
+  assert (0);
+}
diff --git a/gdb/testsuite/gdb.threads/threaded-exec.exp b/gdb/testsuite/gdb.threads/threaded-exec.exp
new file mode 100644
--- /dev/null
+++ b/gdb/testsuite/gdb.threads/threaded-exec.exp
@@ -0,0 +1,46 @@
+# threaded-exec.exp -- Check reset of the tracked threads on exec*(2)
+# Copyright (C) 2007 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
+
+set testfile threaded-exec
+set srcfile ${testfile}.c
+set binfile_nothreads [standard_output_file ${testfile}N]
+set binfile_threads [standard_output_file ${testfile}Y]
+
+if {[gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile_nothreads}" executable {additional_flags=-UTHREADS}] != "" } {
+    return -1
+}
+
+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile_threads}" executable {additional_flags=-DTHREADS}] != "" } {
+    return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+
+gdb_load ${binfile_nothreads}
+
+gdb_run_cmd [list ${binfile_nothreads} ${binfile_threads} 0]
+
+gdb_test_multiple {} "Program exited" {
+   -re "\r\n\\\[Inferior .* exited normally\\\]\r\n$gdb_prompt $" {
+       pass "Program exited"
+   }
+}