2002-01-08 Michael Snyder <msnyder@redhat.com>

	* gdb.base/gcore.exp: New test for generate-core-file command.
	* gdb.base/gcore.c: Testcase for above.
	* gdb.threads/gcore-thread.exp: New test for gcore (threaded).

4 files changed, 464 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 0a91613..bd859e3 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2002-01-08  Michael Snyder  <msnyder@redhat.com>
+
+	* gdb.base/gcore.exp: New test for generate-core-file command.
+	* gdb.base/gcore.c: Testcase for above.
+	* gdb.threads/gcore-thread.exp: New test for gcore (threaded).
+
 2002-01-08  Jason Merrill  <jason@redhat.com>
 
 	* gdb.c++/userdef.cc: Use <iostream> instead of <iostream.h>.
diff --git a/gdb/testsuite/gdb.base/gcore.c b/gdb/testsuite/gdb.base/gcore.c
new file mode 100644
index 0000000..af09dce
--- /dev/null
+++ b/gdb/testsuite/gdb.base/gcore.c
@@ -0,0 +1,52 @@
+/*
+ * Test GDB's ability to save and reload a corefile.
+ */
+
+#include <stdlib.h>
+
+int extern_array[4] = {1, 2, 3, 4};
+static int static_array[4] = {5, 6, 7, 8};
+static int un_initialized_array[4];
+static char *heap_string;
+
+void 
+terminal_func ()
+{
+  return;
+}
+
+void
+array_func ()
+{
+  int local_array[4];
+  int i;
+
+  heap_string = (char *) malloc (80);
+  strcpy (heap_string, "I'm a little teapot, short and stout...");
+  for (i = 0; i < 4; i++)
+    {
+      un_initialized_array[i] = extern_array[i] + 8;
+      local_array[i] = extern_array[i] + 12;
+    }
+  terminal_func ();
+}
+
+#ifdef PROTOTYPES
+int factorial_func (int value)
+#else
+int factorial_func (value)
+     int value;
+#endif
+{
+  if (value > 1) {
+    value *= factorial_func (value - 1);
+  }
+  array_func ();
+  return (value);
+}
+
+main()
+{
+  factorial_func (6);
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.base/gcore.exp b/gdb/testsuite/gdb.base/gcore.exp
new file mode 100644
index 0000000..232a3b5
--- /dev/null
+++ b/gdb/testsuite/gdb.base/gcore.exp
@@ -0,0 +1,220 @@
+# Copyright 2002 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
+
+# This file was written by Michael Snyder (msnyder@redhat.com)
+# This is a test for the gdb command "generate-core-file".
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile "gcore"
+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 ${binfile}
+
+# Does this gdb support gcore?
+send_gdb "help gcore\n"
+gdb_expect {
+    -re "Undefined command: .gcore.*$gdb_prompt $" {
+	# gcore command not supported -- nothing to test here.
+	unsupported "gdb does not support gcore on this target"
+	return -1;
+    }
+    -re "Save a core file .*$gdb_prompt $" {
+	pass "help gcore"
+    }
+    -re ".*$gdb_prompt $" {
+	fail "help gcore"
+    }
+    timeout {
+	fail "help gcore (timeout)"
+    }
+}
+
+if { ! [ runto main ] } then {
+    gdb_suppress_entire_file "Run to main failed, so all tests in this file will automatically fail."
+}
+
+proc capture_command_output { command prefix } {
+    global gdb_prompt
+    global expect_out
+
+    set output_string ""
+    send_gdb "$command\n"
+    gdb_expect {
+	-re "${command}\[\r\n\]+${prefix}(.*)\[\r\n\]+$gdb_prompt $" {
+	    set output_string $expect_out(1,string)
+	}
+	default {
+	    fail "capture_command_output failed on $command."
+	}
+    }
+    return $output_string
+}
+
+gdb_test "break terminal_func" "Breakpoint .* at .*${srcfile}, line .*" \
+	"set breakpoint at terminal_func"
+
+gdb_test "continue" "Breakpoint .*, terminal_func.*" \
+	"continue to terminal_func"
+
+set print_prefix ".\[0123456789\]* = "
+
+set pre_corefile_backtrace [capture_command_output "backtrace" ""]
+set pre_corefile_regs [capture_command_output "info registers" ""]
+set pre_corefile_allregs [capture_command_output "info all-reg" ""]
+set pre_corefile_static_array \
+	[capture_command_output "print static_array" "$print_prefix"]
+set pre_corefile_uninit_array \
+	[capture_command_output "print un_initialized_array" "$print_prefix"]
+set pre_corefile_heap_string \
+	[capture_command_output "print heap_string" "$print_prefix"]
+set pre_corefile_local_array \
+	[capture_command_output "print array_func::local_array" "$print_prefix"]
+set pre_corefile_extern_array \
+	[capture_command_output "print extern_array" "$print_prefix"]
+
+gdb_test "gcore ${objdir}/${subdir}/gcore.test" \
+	"Saved corefile ${objdir}/${subdir}/gcore.test" \
+	"save a corefile"
+
+# Now restart gdb and load the corefile.
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+send_gdb "core ${objdir}/${subdir}/gcore.test\n"
+gdb_expect {
+    -re ".* is not a core dump:.*$gdb_prompt $" {
+	fail "re-load generated corefile (bad file format)"
+	# No use proceeding from here.
+	return;	
+    }
+    -re ".*: No such file or directory.*$gdb_prompt $" {
+	fail "re-load generated corefile (file not found)"
+	# No use proceeding from here.
+	return;	
+    }
+    -re ".*Couldn't find .* registers in core file.*$gdb_prompt $" {
+	fail "re-load generated corefile (incomplete note section)"
+    }
+    -re "Core was generated by .*$gdb_prompt $" {
+	pass "re-load generated corefile"
+    }
+    -re ".*$gdb_prompt $" {
+	fail "re-load generated corefile"
+    }
+    timeout {
+	fail "re-load generated corefile (timeout)"
+    }
+}
+
+send_gdb "where\n"
+gdb_expect_list "where in corefile" ".*$gdb_prompt $" {
+    ".*\[\r\n\]+#0 .* terminal_func \\(\\) at "
+    ".*\[\r\n\]+#1 .* array_func \\(\\) at "
+    ".*\[\r\n\]+#2 .* factorial_func \\(value=1\\) at "
+    ".*\[\r\n\]+#3 .* factorial_func \\(value=2\\) at "
+    ".*\[\r\n\]+#4 .* factorial_func \\(value=3\\) at "
+    ".*\[\r\n\]+#5 .* factorial_func \\(value=4\\) at "
+    ".*\[\r\n\]+#6 .* factorial_func \\(value=5\\) at "
+    ".*\[\r\n\]+#7 .* factorial_func \\(value=6\\) at "
+    ".*\[\r\n\]+#8 .* main \\(.*\\) at "
+}
+
+set post_corefile_regs [capture_command_output "info registers" ""]
+if ![string compare $pre_corefile_regs $post_corefile_regs] then {
+    pass "corefile restored general registers"
+} else {
+    fail "corefile restored general registers:\npre: $pre_corefile_regs\npost: $post_corefile_regs\n"
+}
+
+set post_corefile_allregs [capture_command_output "info all-reg" ""]
+if ![string compare $pre_corefile_allregs $post_corefile_allregs] then {
+    pass "corefile restored all registers"
+} else {
+    fail "corefile restored all registers:\npre: $pre_corefile_allregs\npost: $post_corefile_allregs\n"
+}
+
+set post_corefile_extern_array \
+	[capture_command_output "print extern_array" "$print_prefix"]
+pass "extern_array = $post_corefile_extern_array"
+if ![string compare $pre_corefile_extern_array $post_corefile_extern_array]  {
+    pass "corefile restored extern array"
+} else {
+    fail "corefile restored extern array"
+}
+
+set post_corefile_static_array \
+	[capture_command_output "print static_array" "$print_prefix"]
+pass "static_array = $post_corefile_static_array"
+if ![string compare $pre_corefile_static_array $post_corefile_static_array]  {
+    pass "corefile restored static array"
+} else {
+    fail "corefile restored static array"
+}
+
+set post_corefile_uninit_array \
+	[capture_command_output "print un_initialized_array" "$print_prefix"]
+pass "uninit_array = $post_corefile_uninit_array"
+if ![string compare $pre_corefile_uninit_array $post_corefile_uninit_array]  {
+    pass "corefile restored un-initialized array"
+} else {
+    fail "corefile restored un-initialized array"
+}
+
+set post_corefile_heap_string \
+	[capture_command_output "print heap_string" "$print_prefix"]
+pass "heap_string = $post_corefile_heap_string"
+if ![string compare $pre_corefile_heap_string $post_corefile_heap_string]  {
+    pass "corefile restored heap array"
+} else {
+    fail "corefile restored heap array"
+}
+
+set post_corefile_local_array \
+	[capture_command_output "print array_func::local_array" "$print_prefix"]
+pass "local_array = $post_corefile_local_array"
+if ![string compare $pre_corefile_local_array $post_corefile_local_array]  {
+    pass "corefile restored stack array"
+} else {
+    fail "corefile restored stack array"
+}
+
+set post_corefile_backtrace [capture_command_output "backtrace" ""]
+if ![string compare $pre_corefile_backtrace $post_corefile_backtrace]  {
+    pass "corefile restored backtrace"
+} else {
+    fail "corefile restored backtrace"
+}
diff --git a/gdb/testsuite/gdb.threads/gcore-thread.exp b/gdb/testsuite/gdb.threads/gcore-thread.exp
new file mode 100644
index 0000000..b56697b
--- /dev/null
+++ b/gdb/testsuite/gdb.threads/gcore-thread.exp
@@ -0,0 +1,186 @@
+# Copyright 2002 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
+
+# This file was written by Michael Snyder (msnyder@redhat.com)
+# This is a test for the gdb command "generate-core-file".
+
+if $tracelevel then {
+	strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+# Single-threaded test case
+set testfile "pthreads"
+set srcfile  ${testfile}.c
+set binfile  ${objdir}/${subdir}/${testfile}
+
+set built_binfile 0
+if [istarget "*-*-linux"] then {
+    set target_cflags "-D_MIT_POSIX_THREADS"
+} else {
+    set target_cflags ""
+}
+set why_msg "unrecognized error"
+foreach lib {-lpthreads -lpthread -lthread} {
+    set options "debug"
+    lappend options "incdir=${objdir}/${subdir}"
+    lappend options "libs=$lib"
+    set ccout [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options]
+    switch -regexp -- $ccout {
+	".*no posix threads support.*" {
+	    set why_msg "missing threads include file"
+	    break
+	}
+	".*cannot open -lpthread.*" {
+	    set why_msg "missing runtime threads library"
+	}
+	".*Can't find library for -lpthread.*" {
+	    set why_msg "missing runtime threads library"
+	}
+	{^$} {
+	    pass "successfully compiled posix threads test case"
+	    set built_binfile 1
+	    break
+	}
+    }
+}
+if {$built_binfile == "0"} {
+    unsupported "Couldn't compile ${srcfile}, ${why_msg}"
+    return -1
+}
+
+# Now we can proceed with the real testing.
+
+# Start with a fresh gdb.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# regexp for "horizontal" text (i.e. doesn't include newline or
+# carriage return)
+set horiz "\[^\n\r\]*"
+
+# regexp for newline
+set nl "\[\r\n\]+"
+
+set timeout 30
+
+send_gdb "help gcore\n"
+gdb_expect {
+    -re "Undefined command: .gcore.*$gdb_prompt $" {
+	# gcore command not supported -- nothing to test here.
+	unsupported "gdb does not support gcore on this target"
+	return -1;
+    }
+    -re "Save a core file .*$gdb_prompt $" {
+	pass "help gcore"
+    }
+    -re ".*$gdb_prompt $" {
+	fail "help gcore"
+    }
+    timeout {
+	fail "help gcore (timeout)"
+    }
+}
+
+if { ! [ runto main ] } then {
+    gdb_suppress_entire_file "Run to main failed, so all tests in this file will automatically fail."
+}
+
+send_gdb "info threads\n"
+gdb_expect {
+    -re ".* main .*$gdb_prompt $" {
+	# OK, threads are supported.
+    }
+    -re "${nl}$gdb_prompt $" {
+	unsupported "gdb does not support threads on this target"
+	return -1;
+    }
+}
+
+# Make sure thread 1 is running
+delete_breakpoints
+gdb_breakpoint "thread1"
+gdb_test "continue" "Continuing.*Breakpoint.* thread1 .*" "thread 1 is running"
+
+# Make sure thread 2 is running
+delete_breakpoints
+gdb_breakpoint "thread2"
+gdb_test "continue" "Continuing.*Breakpoint.* thread2 .*" "thread 2 is running"
+
+# Drop corefile
+gdb_test "gcore ${objdir}/${subdir}/gcore.test" \
+	"Saved corefile ${objdir}/${subdir}/gcore.test" \
+	"save a corefile"
+
+# Now restart gdb and load the corefile.
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+send_gdb "core ${objdir}/${subdir}/gcore.test\n"
+gdb_expect {
+    -re ".* is not a core dump:.*$gdb_prompt $" {
+	fail "re-load generated corefile (bad file format)"
+	# No use proceeding from here.
+	return;	
+    }
+    -re ".*: No such file or directory.*$gdb_prompt $" {
+	fail "re-load generated corefile (file not found)"
+	# No use proceeding from here.
+	return;	
+    }
+    -re ".*Couldn't find .* registers in core file.*$gdb_prompt $" {
+	fail "re-load generated corefile (incomplete note section)"
+    }
+    -re "Core was generated by .*$gdb_prompt $" {
+	pass "re-load generated corefile"
+    }
+    -re ".*$gdb_prompt $" {
+	fail "re-load generated corefile"
+    }
+    timeout {
+	fail "re-load generated corefile (timeout)"
+    }
+}
+
+# FIXME: now what can we test about the thread state?
+# We do not know for certain that there should be at least 
+# three threads, because who knows what kind of many-to-one
+# mapping various OS's may do?  Let's assume that there must
+# be at least two threads:
+
+gdb_test "info threads" ".*${nl}  2 ${horiz}${nl}\\* 1 .*" \
+	"corefile contains at least two threads"
+
+# One thread in the corefile should be in the "thread2" function.
+
+gdb_test "info threads" ".* thread2 .*" \
+	"a corefile thread is executing thread2"
+
+# The thread2 thread should be marked as the current thread.
+
+gdb_test "info threads" ".*${nl}\\* ${horiz} thread2 .*" \
+	"thread2 is current thread in corefile"
+