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[commit] precord watchpoint tests


committed
2009-11-23  Michael Snyder  <msnyder@vmware.com>

	* gdb.reverse/watch-reverse.exp: Extend test for hw watchpoints.
	* gdb.reverse-watch-precsave.exp: Ditto.


Index: gdb.reverse/watch-precsave.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.reverse/watch-precsave.exp,v
retrieving revision 1.1
diff -u -p -r1.1 watch-precsave.exp
--- gdb.reverse/watch-precsave.exp	22 Oct 2009 19:58:26 -0000	1.1
+++ gdb.reverse/watch-precsave.exp	23 Nov 2009 20:10:51 -0000
@@ -1,4 +1,4 @@
-# Copyright 2008, 2009 Free Software Foundation, Inc.
+# Copyright 2009 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
@@ -140,3 +140,81 @@ gdb_test "continue" \
 gdb_test "continue" \
     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
     "watchpoint hit in reverse, fifth time"
+
+gdb_test "set can-use-hw-watchpoints 1" "" "enable hw watchpoints"
+
+###
+###
+###
+
+# FIXME 'set exec-dir' command should give some output so we can test.
+gdb_test "set exec-direction forward" "" "set forward"
+
+# Continue until first change, from -1 to 0
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, first time"
+
+# Continue until the next change, from 0 to 1.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, second time"
+
+# Continue until the next change, from 1 to 2.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, third time"
+
+# Continue until the next change, from 2 to 3.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, fourth time"
+
+# Continue until the next change, from 3 to 4.
+# Note that this one is outside the loop.
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, fifth time"
+
+# Continue until we hit the finishing marker function.
+# Make sure we hit no more watchpoints.
+
+gdb_test "continue" "marker2 .*" "replay forward to marker2"
+
+###
+###
+###
+
+# FIXME 'set exec-dir' command should give some output so we can test.
+gdb_test "set exec-direction reverse" "" "set reverse"
+
+# Reverse until the previous change, from 4 to 3
+# Note that this one is outside the loop
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, first time"
+
+# Reverse until the previous change, from 3 to 2.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, second time"
+
+# Reverse until the previous change, from 2 to 1.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, third time"
+
+# Reverse until the previous change, from 1 to 0.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, fourth time"
+
+# Reverse until first change, from 0 to -1
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, fifth time"
+
Index: gdb.reverse/watch-reverse.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.reverse/watch-reverse.exp,v
retrieving revision 1.2
diff -u -p -r1.2 watch-reverse.exp
--- gdb.reverse/watch-reverse.exp	22 Oct 2009 19:53:10 -0000	1.2
+++ gdb.reverse/watch-reverse.exp	23 Nov 2009 20:10:51 -0000
@@ -38,8 +38,8 @@ if [target_info exists gdb,use_precord] 
     # FIXME: command ought to acknowledge, so we can test if it succeeded.
 }
 
-# Only software watchpoints can be used in reverse
-gdb_test "set can-use-hw-watchpoints 0" "" ""
+# Test software watchpoints
+gdb_test "set can-use-hw-watchpoints 0" "" "disable hw watchpoints"
 
 gdb_test "break marker1" \
     "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal.*" \
@@ -122,3 +122,81 @@ gdb_test "continue" \
 gdb_test "continue" \
     ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
     "watchpoint hit in reverse, fifth time"
+
+gdb_test "set can-use-hw-watchpoints 1" "" "enable hw watchpoints"
+
+###
+###
+###
+
+# FIXME 'set exec-dir' command should give some output so we can test.
+gdb_test "set exec-direction forward" "" "set forward"
+
+# Continue until first change, from -1 to 0
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, first time"
+
+# Continue until the next change, from 0 to 1.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, second time"
+
+# Continue until the next change, from 1 to 2.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, third time"
+
+# Continue until the next change, from 2 to 3.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, fourth time"
+
+# Continue until the next change, from 3 to 4.
+# Note that this one is outside the loop.
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit, forward replay, fifth time"
+
+# Continue until we hit the finishing marker function.
+# Make sure we hit no more watchpoints.
+
+gdb_test "continue" "marker2 .*" "replay forward to marker2"
+
+###
+###
+###
+
+# FIXME 'set exec-dir' command should give some output so we can test.
+gdb_test "set exec-direction reverse" "" "set reverse"
+
+# Reverse until the previous change, from 4 to 3
+# Note that this one is outside the loop
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 4.*New value = 3.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, first time"
+
+# Reverse until the previous change, from 3 to 2.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 2.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, second time"
+
+# Reverse until the previous change, from 2 to 1.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, third time"
+
+# Reverse until the previous change, from 1 to 0.
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 0.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, fourth time"
+
+# Reverse until first change, from 0 to -1
+
+gdb_test "continue" \
+    ".*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = -1.*ival3 = count; ival4 = count;.*" \
+    "watchpoint hit in reverse, HW, fifth time"
+

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