2006-01-04 Michael Snyder <msnyder@redhat.com>

	* gdb.base/checkpoint.c: New file.
	* gdb.base/checkpoint.exp: New file.
	* gdb.base/multi-fork.c: New file.
	* gdb.base/multi-fork.exp: New file.
	* gdb.base/pi.txt: New file (data for checkpoint.c test).

5 files changed, 1952 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/checkpoint.c b/gdb/testsuite/gdb.base/checkpoint.c
new file mode 100644
index 00000000000..184a68fe2a8
--- /dev/null
+++ b/gdb/testsuite/gdb.base/checkpoint.c
@@ -0,0 +1,62 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2005 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 <stdio.h>
+
+long lines = 0;
+
+main()
+{
+  char linebuf[128];
+  FILE *in, *out;
+  char *tmp = &linebuf[0];
+  long i;
+  int c = 0;
+
+  in  = fopen ("pi.txt", "r");
+  out = fopen ("copy1.txt", "w");
+
+  if (!in || !out)
+    {
+      fprintf (stderr, "File open failed\n");
+      exit (1);
+    }
+
+  for (i = 0; ; i++)
+    {
+      if (ftell (in) != i)
+	fprintf (stderr, "Input error at %d\n", i);
+      if (ftell (out) != i)
+	fprintf (stderr, "Output error at %d\n", i);
+      c = fgetc (in);
+      if (c == '\n')
+	lines++;	/* breakpoint 1 */
+      if (c == EOF)
+	break;
+      fputc (c, out);
+    }
+  printf ("Copy complete.\n");	/* breakpoint 2 */
+  fclose (in);
+  fclose (out);
+  printf ("Deleting copy.\n");	/* breakpoint 3 */
+  unlink ("copy1.txt");
+  exit (0);			/* breakpoint 4 */
+}
diff --git a/gdb/testsuite/gdb.base/checkpoint.exp b/gdb/testsuite/gdb.base/checkpoint.exp
new file mode 100644
index 00000000000..2640b042937
--- /dev/null
+++ b/gdb/testsuite/gdb.base/checkpoint.exp
@@ -0,0 +1,375 @@
+#   Copyright 2005 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
+
+if $tracelevel then {
+	strace $tracelevel
+	}
+
+if { ![isnative] } then {
+    continue
+}
+
+# Until "set follow-fork-mode" and "catch fork" are implemented on
+# other targets...
+#
+if {![istarget "*-*-linux*"]} then {
+    continue
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile "checkpoint"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+}
+
+# Start with a fresh gdb
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+global gdb_prompt
+
+#
+# This tests gdb checkpoint and restart.
+#
+
+remote_download host ${srcdir}/${subdir}/pi.txt pi.txt
+
+runto_main
+set break1_loc [gdb_get_line_number "breakpoint 1"]
+set break2_loc [gdb_get_line_number "breakpoint 2"]
+set break3_loc [gdb_get_line_number "breakpoint 3"]
+set break4_loc [gdb_get_line_number "breakpoint 4"]
+
+gdb_breakpoint $break1_loc
+gdb_test "continue" "breakpoint 1.*" "break1 start"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 two"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 three"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 four" 
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 five"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 six"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 seven"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 eight"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 nine"
+
+gdb_test "checkpoint" "" ""
+gdb_test "continue 10" "breakpoint 1.*" "break1 ten"
+
+gdb_test "checkpoint" "" ""
+
+gdb_test "info checkpoints" \
+    " 10 .* 9 .* 8 .* 7 .* 6 .* 5 .* 4 .* 3 .* 2 .* 1 .*" \
+    "info checkpoints one"
+
+delete_breakpoints
+gdb_breakpoint $break2_loc
+gdb_test "continue" "breakpoint 2.*" "break2 one"
+
+gdb_test "restart 1" "Switching to .*breakpoint 1.*" "restart 1 one"
+gdb_test "print i" " = 78" "verify i 1 one"
+gdb_test "step" "if .c == EOF.*" "step in 1 one"
+gdb_test "print lines" " = 1.*" "verify lines 1 one"
+
+gdb_test "restart 2" "Switching to .*breakpoint 1.*" "restart 2 one"
+gdb_test "step" "if .c == EOF.*" "step in 2 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 2 one"
+gdb_test "print lines" " = 11.*" "verify lines 2 one"
+
+gdb_test "restart 3" "Switching to .*breakpoint 1.*" "restart 3 one"
+gdb_test "step" "if .c == EOF.*" "step in 3 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 3 one"
+gdb_test "print lines" " = 21.*" "verify lines 3 one"
+
+gdb_test "restart 4" "Switching to .*breakpoint 1.*" "restart 4 one"
+gdb_test "step" "if .c == EOF.*" "step in 4 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 4 one"
+gdb_test "print lines" " = 31.*" "verify lines 4 one"
+
+gdb_test "restart 5" "Switching to .*breakpoint 1.*" "restart 5 one"
+gdb_test "step" "if .c == EOF.*" "step in 5 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 5 one"
+gdb_test "print lines" " = 41.*" "verify lines 5 one"
+
+gdb_test "restart 6" "Switching to .*breakpoint 1.*" "restart 6 one"
+gdb_test "step" "if .c == EOF.*" "step in 6 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 6 one"
+gdb_test "print lines" " = 51.*" "verify lines 6 one"
+
+gdb_test "restart 7" "Switching to .*breakpoint 1.*" "restart 7 one"
+gdb_test "step" "if .c == EOF.*" "step in 7 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 7 one"
+gdb_test "print lines" " = 61.*" "verify lines 7 one"
+
+gdb_test "restart 8" "Switching to .*breakpoint 1.*" "restart 8 one"
+gdb_test "step" "if .c == EOF.*" "step in 8 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 8 one"
+gdb_test "print lines" " = 71.*" "verify lines 8 one"
+
+gdb_test "restart 9" "Switching to .*breakpoint 1.*" "restart 9 one"
+gdb_test "step" "if .c == EOF.*" "step in 9 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 9 one"
+gdb_test "print lines" " = 81.*" "verify lines 9 one"
+
+gdb_test "restart 10" "Switching to .*breakpoint 1.*" "restart 10 one"
+gdb_test "step" "if .c == EOF.*" "step in 10 one"
+gdb_test "print i + 1 == lines * 79" " = 1" "verify i 10 one"
+gdb_test "print lines" " = 91.*" "verify lines 10 one"
+
+#
+# Now let the files be closed by the original process, 
+# and diff them.
+
+gdb_test "restart 0" "Switching to .*breakpoint 2.*" "restart 0 one"
+gdb_breakpoint $break3_loc
+gdb_test "continue" "breakpoint 3.*" "break3 one"
+
+gdb_test "shell diff -s pi.txt copy1.txt" \
+    "Files pi.txt and copy1.txt are identical.*" \
+    "Diff input and output one"
+
+#
+# And now run from various checkpoints, allowing 
+# various amounts of input and output.
+#
+
+gdb_breakpoint $break1_loc
+
+gdb_test "restart 1" "Switching to .*c == EOF.*" "restart 1 two"
+gdb_test "continue" "" ""
+gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 1 one"
+gdb_test "step" "if .c == EOF.*" "step in 1 two"
+gdb_test "print lines" " = 102.*" "verify lines 1 two"
+
+gdb_test "restart 2" "Switching to .*c == EOF.*" "restart 2 two"
+gdb_test "continue" "" ""
+gdb_test "continue 100" "breakpoint 1.*" "breakpoint 1 2 one"
+gdb_test "step" "if .c == EOF.*" "step in 2 two"
+gdb_test "print lines" " = 112.*" "verify lines 2 two"
+
+gdb_test "restart 3" "Switching to .*c == EOF.*" "restart 3 two"
+gdb_test "continue" "" ""
+gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 3 one"
+gdb_test "step" "if .c == EOF.*" "step in 3 two"
+gdb_test "print lines" " = 522.*" "verify lines 3 two"
+
+gdb_test "restart 4" "Switching to .*c == EOF.*" "restart 4 two"
+gdb_test "continue" "" ""
+gdb_test "continue 500" "breakpoint 1.*" "breakpoint 1 4 one"
+gdb_test "step" "if .c == EOF.*" "step in 4 two"
+gdb_test "print lines" " = 532.*" "verify lines 4 two"
+
+gdb_test "restart 5" "Switching to .*c == EOF.*" "restart 5 two"
+gdb_test "continue" "" ""
+gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 5 one"
+gdb_test "step" "if .c == EOF.*" "step in 5 two"
+gdb_test "print lines" " = 1042.*" "verify lines 5 two"
+
+gdb_test "restart 6" "Switching to .*c == EOF.*" "restart 6 two"
+gdb_test "continue" "" ""
+gdb_test "continue 1000" "breakpoint 1.*" "breakpoint 1 6 one"
+gdb_test "step" "if .c == EOF.*" "step in 6 two"
+gdb_test "print lines" " = 1052.*" "verify lines 5 two"
+
+gdb_test "restart 7" "Switching to .*c == EOF.*" "restart 7 two"
+gdb_test "continue" "" ""
+gdb_test "continue 1100" "breakpoint 1.*" "breakpoint 1 7 one"
+gdb_test "step" "if .c == EOF.*" "step in 7 two"
+gdb_test "print lines" " = 1162.*" "verify lines 7 two"
+
+gdb_test "shell diff -s pi.txt copy1.txt" \
+    "Files pi.txt and copy1.txt are identical.*" \
+    "Diff input and output two"
+
+# 
+# OK, now allow the original program to delete the output file, 
+# and verify that the checkpoints can still write to it.
+# 
+
+gdb_test "restart 0" "Switching to .*breakpoint 3.*" "restart 0 one"
+gdb_breakpoint $break4_loc
+gdb_test "continue" "breakpoint 4.*" "break4 one"
+
+gdb_test "shell diff pi.txt copy1.txt" \
+    "diff: copy1.txt: No such file or directory" \
+    "delete copy1"
+
+delete_breakpoints
+gdb_breakpoint $break2_loc
+
+gdb_test "restart 1" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 1 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 1"
+
+gdb_test "restart 2" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 2 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 2"
+
+gdb_test "restart 3" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 3 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 3"
+
+gdb_test "restart 4" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 4 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 4"
+
+gdb_test "restart 5" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 5 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 5"
+
+gdb_test "restart 6" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 6 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 6"
+
+gdb_test "restart 7" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 7 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 7"
+
+gdb_test "restart 8" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 8 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 8"
+
+gdb_test "restart 9" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 9 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 9"
+
+gdb_test "restart 10" "if .c == EOF.*" "restart 1 three"
+gdb_test "continue" "breakpoint 2.*" "break2 10 one"
+gdb_test "print ftell (out) > 100000" " = 1.*" "outfile still open 10"
+
+#
+# Now confirm that if one fork exits, we automatically switch to another one.
+#
+
+delete_breakpoints
+gdb_test "continue" \
+    "Deleting copy.*Program exited normally.*Switching to.*" \
+    "Exit, dropped into next fork one"
+
+gdb_test "continue" \
+    "Deleting copy.*Program exited normally.*Switching to.*" \
+    "Exit, dropped into next fork two"
+
+gdb_test "continue" \
+    "Deleting copy.*Program exited normally.*Switching to.*" \
+    "Exit, dropped into next fork three"
+
+gdb_test "continue" \
+    "Deleting copy.*Program exited normally.*Switching to.*" \
+    "Exit, dropped into next fork four"
+
+gdb_test "continue" \
+    "Deleting copy.*Program exited normally.*Switching to.*" \
+    "Exit, dropped into next fork five"
+
+#
+# There should be still at least five forks left
+# 
+
+gdb_test "info checkpoints" " 5 .* 4 .* 3 .* 2 .* 1 .*" \
+    "info checkpoints two"
+
+#
+# Kill should now terminate all of them.
+#
+
+gdb_test "kill" "" "kill all one" \
+    "Kill the program being debugged.*y or n. $" "y"
+
+# 
+# and confirm that all are gone
+#
+
+gdb_test "restart 0" "Not found.*" "no more checkpoint 0"
+gdb_test "restart 1" "Not found.*" "no more checkpoint 1"
+gdb_test "restart 2" "Not found.*" "no more checkpoint 2"
+gdb_test "restart 3" "Not found.*" "no more checkpoint 3"
+gdb_test "restart 4" "Not found.*" "no more checkpoint 4"
+gdb_test "restart 5" "Not found.*" "no more checkpoint 5"
+gdb_test "restart 6" "Not found.*" "no more checkpoint 6"
+gdb_test "restart 7" "Not found.*" "no more checkpoint 7"
+gdb_test "restart 8" "Not found.*" "no more checkpoint 8"
+gdb_test "restart 9" "Not found.*" "no more checkpoint 9"
+gdb_test "restart 10" "Not found.*" "no more checkpoint 10"
+
+#
+# Now let's try setting a large number of checkpoints (>1000)
+#
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+runto_main
+gdb_breakpoint $break1_loc
+
+send_gdb "commands\n"
+send_gdb "  silent\n"
+send_gdb "  if (lines % 2)\n"
+send_gdb "    checkpoint\n"
+send_gdb "  end\n"
+send_gdb "  continue\n"
+send_gdb "end\n"
+
+gdb_expect {
+    -re ".*$gdb_prompt $" { pass "set checkpoint breakpoint" }
+    timeout { fail "(timeout) set checkpoint breakpoint" }
+}
+
+gdb_breakpoint $break2_loc
+gdb_test "continue" "breakpoint 2.*" "break2 with many checkpoints"
+
+gdb_test "info checkpoints" " 600 .* 0 .*" \
+    "info checkpoints with at least 600 checkpoints"
+
+#
+# OK, kill 'em all...
+#
+
+gdb_test "kill" "" "kill all one" \
+    "Kill the program being debugged.*y or n. $" "y"
+
+#
+# Finished: cleanup
+#
+
+remote_exec build "rm -f pi.txt"
diff --git a/gdb/testsuite/gdb.base/multi-forks.c b/gdb/testsuite/gdb.base/multi-forks.c
new file mode 100644
index 00000000000..206106768a7
--- /dev/null
+++ b/gdb/testsuite/gdb.base/multi-forks.c
@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+pid_t pids[4];
+
+main()
+{
+  int i;
+
+  for (i = 0; i < 4; i++)
+    pids [i] = fork ();
+
+  printf ("%d ready\n", getpid ());
+  sleep (2);
+  printf ("%d done\n", getpid ());
+  exit (0);	/* Set exit breakpoint here.  */
+}
diff --git a/gdb/testsuite/gdb.base/multi-forks.exp b/gdb/testsuite/gdb.base/multi-forks.exp
new file mode 100644
index 00000000000..f1b631ed5ee
--- /dev/null
+++ b/gdb/testsuite/gdb.base/multi-forks.exp
@@ -0,0 +1,214 @@
+#   Copyright 2005 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
+
+if $tracelevel then {
+	strace $tracelevel
+	}
+
+if { ![isnative] } then {
+    continue
+}
+
+# Until "set follow-fork-mode" and "catch fork" are implemented on
+# other targets...
+#
+if {![istarget "hppa*-hp-hpux*"] && ![istarget "*-*-linux*"]} then {
+    continue
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile "multi-forks"
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+
+if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
+     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
+}
+
+# Start with a fresh gdb
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+global gdb_prompt
+
+# This is a test of gdb's ability to follow the parent, child or both
+# parent and child of multiple Unix fork() system calls.
+#
+
+# Inferior program calls fork 4 times.  Since each fork
+# calls fork 4 times, there will be 16 forks.  Each fork
+# saves the return values of its own 4 fork calls.
+
+# First set gdb to follow the child.
+# The result should be that each of the 4 forks returns zero.
+
+runto_main
+set exit_bp_loc [gdb_get_line_number "Set exit breakpoint here."]
+gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit"
+gdb_test "set follow child" "" ""
+
+send_gdb "continue\n"
+gdb_expect {
+    -re ".*Break.* main .*$gdb_prompt $" {}
+    -re ".*$gdb_prompt $" {fail "run to exit 1"}
+    default {fail "run to exit 1 (timeout)"}
+}
+
+gdb_test "print pids" "\\$.* = \\{0, 0, 0, 0\\}.*" "follow child, print pids"
+
+# Now set gdb to follow the parent.
+# Result should be that none of the 4 forks returns zero.
+
+delete_breakpoints
+runto_main
+gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" "Break at exit"
+gdb_test "set follow parent" "" ""
+
+send_gdb "continue\n"
+gdb_expect {
+    -re ".*Break.* main .*$gdb_prompt $" {}
+    -re ".*$gdb_prompt $" {fail "run to exit 2"}
+    default {fail "run to exit 2 (timeout)"}
+}
+
+gdb_test "print pids\[0\]==0 || pids\[1\]==0 || pids\[2\]==0 || pids\[3\]==0" \
+    " = 0" "follow parent, print pids"
+
+#
+# Now test with detach-on-fork off.
+#
+
+runto_main
+gdb_test "break $exit_bp_loc" "Breakpoint.* at .*" ""
+
+gdb_test "help set detach-on-fork" "whether gdb will detach the child.*" \
+    "help set detach"
+
+gdb_test "show detach-on-fork" "on." "show detach default on"
+
+gdb_test "set detach off" "" "set detach off"
+
+#
+# We will now run every fork up to the exit bp, 
+# eventually winding up with 16 forks.
+#
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 1"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 1"
+gdb_test "restart 1" "_dl_sysinfo_int80.*" "restart 1"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 2"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 2"
+gdb_test "restart 2" "_dl_sysinfo_int80.*" "restart 2"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 3"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 3"
+gdb_test "restart 3" "_dl_sysinfo_int80.*" "restart 3"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 4"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 4"
+gdb_test "restart 4" "_dl_sysinfo_int80.*" "restart 4"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 5"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 5"
+gdb_test "restart 5" "_dl_sysinfo_int80.*" "restart 5"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 6"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 6"
+gdb_test "restart 6" "_dl_sysinfo_int80.*" "restart 6"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 7"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 7"
+gdb_test "restart 7" "_dl_sysinfo_int80.*" "restart 7"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 8"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 8"
+gdb_test "restart 8" "_dl_sysinfo_int80.*" "restart 8"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 9"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 9"
+gdb_test "restart 9" "_dl_sysinfo_int80.*" "restart 9"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 10"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 10"
+gdb_test "restart 10" "_dl_sysinfo_int80.*" "restart 10"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 11"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 11"
+gdb_test "restart 11" "_dl_sysinfo_int80.*" "restart 11"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 12"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 12"
+gdb_test "restart 12" "_dl_sysinfo_int80.*" "restart 12"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 13"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 13"
+gdb_test "restart 13" "_dl_sysinfo_int80.*" "restart 13"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 14"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 14"
+gdb_test "restart 14" "_dl_sysinfo_int80.*" "restart 14"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 15"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 15"
+gdb_test "restart 15" "_dl_sysinfo_int80.*" "restart 15"
+
+gdb_test "continue" "Breakpoint .* main .*exit.*" "Run to exit 16"
+gdb_test "info fork" " 4 .* 3 .* 2 .* 1 .*" "info fork 16"
+gdb_test "restart 0" " main .*" "restart final"
+
+#
+# Now we should examine all the pids.
+#
+
+# 
+# Test detach-fork
+# 
+
+# [assumes we're at #0]
+gdb_test "detach-fork 1" "Detached .*" "Detach 1"
+gdb_test "detach-fork 2" "Detached .*" "Detach 2"
+gdb_test "detach-fork 3" "Detached .*" "Detach 3"
+gdb_test "detach-fork 4" "Detached .*" "Detach 4"
+
+# 
+# Test delete-fork
+# 
+
+gdb_test "delete-fork 5" "" "Delete 5"
+gdb_test "delete-fork 6" "" "Delete 6"
+gdb_test "delete-fork 7" "" "Delete 7"
+gdb_test "delete-fork 8" "" "Delete 8"
+gdb_test "delete-fork 9" "" "Delete 9"
+gdb_test "delete-fork 10" "" "Delete 10"
+gdb_test "delete-fork 11" "" "Delete 11"
+gdb_test "delete-fork 12" "" "Delete 12"
+gdb_test "delete-fork 13" "" "Delete 13"
+gdb_test "delete-fork 14" "" "Delete 14"
+gdb_test "delete-fork 15" "" "Delete 15"
+
+
+
+return 0
+
diff --git a/gdb/testsuite/gdb.base/pi.txt b/gdb/testsuite/gdb.base/pi.txt
new file mode 100644
index 00000000000..d120ae31290
--- /dev/null
+++ b/gdb/testsuite/gdb.base/pi.txt
@@ -0,0 +1,1283 @@
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