breakpoint-shadow.exp revision 1.7 
1# Copyright 2008-2017 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with this program.  If not, see <http://www.gnu.org/licenses/>.
15
16standard_testfile
17
18if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
19    return -1
20}
21
22# We need to start the inferior to place the breakpoints in the memory at all.
23if ![runto_main] {
24    untested start
25    return -1
26}
27
28# The default "auto" mode removes all the breakpoints when we stop (and not
29# running the nonstop mode).  We would not be able to test the shadow.
30gdb_test_no_output "set breakpoint always-inserted on"
31gdb_test "show breakpoint always-inserted" "Always inserted breakpoint mode is on."
32
33set match "\nDump of assembler code for function main:\r\n(.*)End of assembler dump.\r\n$gdb_prompt $"
34
35set test "disassembly without breakpoints"
36gdb_test_multiple "disass main" $test {
37    -re $match {
38    	set orig $expect_out(1,string)
39	pass $test
40    }
41}
42
43gdb_test "b [gdb_get_line_number "break-first"]" "Breakpoint \[0-9\] at .*" "first breakpoint placed"
44gdb_test "b [gdb_get_line_number "break-second"]" "Breakpoint \[0-9\] at .*" "second breakpoint placed"
45
46# Disassemble main, and compare the output to the original output
47# before breakpoints were inserted.  TEST is used as test message.
48
49proc test_disassembly {test} {
50    global match orig
51
52    gdb_test_multiple "disass main" $test {
53	-re $match {
54	    set got $expect_out(1,string)
55	    if [string equal -nocase $orig $got] {
56		pass $test
57	    } else {
58		fail $test
59	    }
60	}
61    }
62}
63
64test_disassembly "disassembly with breakpoints"
65
66# Now check the interaction between the code cache and breakpoint
67# always-inserted mode.
68
69# Recreate the code cache when breakpoints are already inserted.
70gdb_test_no_output "set code-cache off"
71gdb_test_no_output "set code-cache on"
72
73test_disassembly "disassembly with breakpoints, fresh code cache"
74
75# Delete breakpoints.  This should update the code cache as well.
76delete_breakpoints
77
78test_disassembly "disassembly without breakpoints, no stale breakpoints"
79