1# Copyright 1998, 1999, 2001, 2007, 2008, 2009, 2010, 2011
2# Free Software Foundation, Inc.
3
4# This program is free software; you can redistribute it and/or modify
5# it under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 3 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17
18if $tracelevel then {
19        strace $tracelevel
20}
21
22set testfile1 "average"
23set testfile2 "sum"
24set testfile "dbx-test"
25set binfile1 ${objdir}/${subdir}/${testfile1}
26set binfile2 ${objdir}/${subdir}/${testfile2}
27set binfile ${objdir}/${subdir}/${testfile}
28
29
30
31if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {
32     untested dbx.exp
33     return -1
34}
35
36if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {
37     untested dbx.exp
38     return -1
39}
40
41if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {
42     untested dbx.exp
43     return -1
44}
45
46#
47# start gdb -- start gdb running, default procedure
48#
49proc dbx_gdb_start { } {
50    global verbose
51    global GDB
52    global INTERNAL_GDBFLAGS GDBFLAGS
53    global prompt
54    global spawn_id
55    global timeout
56    verbose "Spawning $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
57
58    if { [which $GDB] == 0 } then {
59        perror "$GDB does not exist."
60        exit 1
61    }
62
63    set oldtimeout $timeout
64    set timeout [expr "$timeout + 60"]
65    eval "spawn $GDB -dbx $INTERNAL_GDBFLAGS $GDBFLAGS"
66    gdb_expect {
67        -re ".*\r\n$gdb_prompt $" {
68            verbose "GDB initialized."
69        }
70        -re "$prompt $" {
71            perror "GDB never initialized."
72            return -1
73        }
74        timeout         {
75            perror "(timeout) GDB never initialized."
76            return -1
77        }
78    }
79    set timeout $oldtimeout
80    # force the height to "unlimited", so no pagers get used
81    send_gdb "set height 0\n"
82    gdb_expect {
83        -re ".*$prompt $" {
84            verbose "Setting height to 0." 2
85        }
86        timeout {
87            warning "Couldn't set the height to 0."
88        }
89    }
90    # force the width to "unlimited", so no wraparound occurs
91    send_gdb "set width 0\n"
92    gdb_expect {
93        -re ".*$prompt $" {
94            verbose "Setting width to 0." 2
95        }
96        timeout {
97            warning "Couldn't set the width to 0."
98        }
99    }
100}
101
102
103proc dbx_reinitialize_dir { subdir } {
104    global gdb_prompt
105
106   send_gdb "use\n"
107    gdb_expect {
108        -re "Reinitialize source path to empty.*y or n. " {
109            send_gdb "y\n"
110            gdb_expect {
111                -re "Source directories searched.*$gdb_prompt $" {
112                    send_gdb "use $subdir\n"
113                    gdb_expect {
114                        -re "Source directories searched.*$gdb_prompt $" {
115                            verbose "Dir set to $subdir"
116                        }
117                        -re ".*$gdb_prompt $" {
118                            perror "Dir \"$subdir\" failed."
119                        }
120                    }
121                }
122                -re ".*$gdb_prompt $" {
123                    perror "Dir \"$subdir\" failed."
124                }
125            }
126        }
127        -re ".*$gdb_prompt $" {
128            perror "Dir \"$subdir\" failed."
129        }
130    }
131}
132
133# In "testsuite/config/unix-gdb.exp", the routine "gdb_load"
134# is defined as "gdb_file_cmd".  The binding of "gdb_file_cmd"
135# is done at invocation time.  Before this file is processed,
136# it binds to the definition in "testsuite/lib/gdb.exp"; after
137# this file is processed, it binds to this definition.
138# TCL lets us overrides a previous routine definition without a
139# warning (isn't that special?).
140#
141# This means that tests before use "file" to load a target, and
142# tests afterwards use the pair "symbol-file" "exec-file".
143#
144# I'm leaving it as it is for now because at the moment it
145# is the only test we have of the use of the combination of
146# "symbol-file" and "exec-file" to load a debugging target (the
147# other definition uses "file".
148#
149# Symbol-file and exec-file should be tested explicitly, not
150# as a side effect of running a particular test (in this case,
151# "testsuite/gdb.compat/dbx.exp").
152#
153# CM: Renamed the procedure so it does not override the orginal file name.
154#     Having the test suite change behavior depending on the tests run makes
155#     it extremely difficult to reproduce errors. I've also added a
156#     "dbx_gdb_load" procedure.  This and only this test will call these
157#     procedures now. I also added an "expect" to the "send exec-file" line.
158#     The "expect" waits for a prompt to appear. Otherwise, if the tests run
159#     too quickly, the caller could send another command before the prompt
160#     of this command returns, causing the test to get out of sync and fail
161#     seemingly randomly or only on a loaded system.
162#
163# Problem is, though, that the testsuite config files can override the definition of
164# gdb_load (without notice, as was mentioned above). Unfortunately, the gdb_load proc
165# that was copied into this test was a copy of the unix native version.
166#
167# The real problem that we're attempting to solve is how to load an exec and symbol
168# file into gdb for a dbx session. So why not just override gdb_file_cmd with the
169# right sequence of events, allowing gdb_load to do its normal thing? This way
170# remotes and simulators will work, too.
171#
172# [drow 2002-03-30]: We can restore the old gdb_file_cmd afterwards, though.
173set old_gdb_file_cmd_args [info args gdb_file_cmd]
174set old_gdb_file_cmd_body [info body gdb_file_cmd]
175
176proc gdb_file_cmd {arg} {
177    global verbose
178    global loadpath
179    global loadfile
180    global GDB
181    global gdb_prompt
182    global spawn_id
183    upvar timeout timeout
184    global last_loaded_file
185
186    set last_loaded_file $arg
187
188    if [is_remote host] {
189        set arg [remote_download host $arg];
190        if { $arg == "" } {
191            error "download failed"
192            return -1;
193        }
194    }
195
196    send_gdb "symbol-file $arg\n"
197    gdb_expect {
198	-re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {
199            verbose "\t\tLoaded $arg into the $GDB"
200            send_gdb "exec-file $arg\n"
201            gdb_expect {
202                -re ".*$gdb_prompt $" {
203                    verbose "\t\tLoaded $arg with new symbol table into $GDB"
204                    return 0
205                }
206                timeout {
207                    perror "(timeout) Couldn't load $arg"
208                    return -1
209                }
210            }
211            return 0
212        }
213        -re "Reading symbols from.*done.*$gdb_prompt $" {
214            verbose "\t\tLoaded $arg into the $GDB"
215            send_gdb "exec-file $arg\n"
216            gdb_expect {
217	        -re "A program is being debugged already.*Kill it.*y or n. $" {
218	            send_gdb "y\n"
219	                verbose "\t\tKilling previous program being debugged"
220	            exp_continue
221	        }
222                -re ".*$gdb_prompt $" {
223                    verbose "\t\tLoaded $arg with new symbol table into $GDB"
224                    return 0
225                }
226                timeout {
227                    perror "(timeout) Couldn't load $arg"
228                    return -1
229                }
230            }
231            return 0
232        }
233        -re "has no symbol-table.*$gdb_prompt $" {
234            perror "$arg wasn't compiled with \"-g\""
235            return -1
236        }
237        -re "Load new symbol table from \".*\".*y or n. $" {
238            send_gdb "y\n"
239	    exp_continue
240        }
241        -re ".*No such file or directory.*$gdb_prompt $" {
242            perror "($arg) No such file or directory\n"
243            return -1
244        }
245        -re "$gdb_prompt $" {
246            perror "couldn't load $arg into $GDB."
247            return -1
248            }
249        timeout {
250            perror "couldn't load $arg into $GDB (timed out)."
251            return -1
252        }
253        eof {
254            # This is an attempt to detect a core dump, but seems not to
255            # work.  Perhaps we need to match .* followed by eof, in which
256            # expect does not seem to have a way to do that.
257            perror "couldn't load $arg into $GDB (end of file)."
258            return -1
259        }
260    }
261}
262
263#
264#test_breakpoints
265#
266proc test_breakpoints { } {
267    gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."
268    gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"
269    gdb_test "stop at average.c:43" "Breakpoint.*at.*: file.*average\.c, line 43.*"
270    gdb_test "stop in average.c:43" "Usage: stop in <function . address>"
271    gdb_test "stop at main" "Usage: stop at <line>"
272}
273
274#
275#test_assign
276#
277proc test_assign { } {
278    global decimal
279    global gdb_prompt
280
281    gdb_run_cmd
282    gdb_expect 30 {
283        -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }
284        -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }
285        -re "$gdb_prompt $" { fail "running to main" }
286        timeout { fail "running to main (timeout)" }
287    }
288    send_gdb "assign first=1\n"
289    gdb_expect {
290      -re "No symbol \"first\" in current context.*$" { fail "assign first" }
291      -re "$gdb_prompt $" { pass "assign first" }
292      timeout { fail "assign first (timeout)" }
293    }
294    gdb_test "print first" ".1 = 1"
295}
296
297#
298#test_whereis
299#
300proc test_whereis { } {
301    gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"
302}
303
304#
305#test_func
306#
307proc test_func { } {
308    gdb_test "cont" ".*" "cont 1"
309    gdb_test "step" ".*"
310    # This always fails, but it's not clear why. -sts 1999-08-17
311    setup_xfail "*-*-*"
312    gdb_test "func sum" "'sum' not within current stack frame\."
313    gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."
314    gdb_test "cont" ".*" "cont 2"
315    # This always fails, but it's not clear why. -sts 1999-08-17
316    setup_xfail "*-*-*"
317    gdb_test "func print_average" ".*in print_average.*\\(list=.*, low=0, high=6\\).*at.*average\.c:24\r\n24\[ \t\]+total = sum\\(list, low, high\\);"
318}
319
320# Start with a fresh gdb.
321
322gdb_exit
323global GDBFLAGS
324set saved_gdbflags $GDBFLAGS
325
326set GDBFLAGS "$GDBFLAGS --dbx"
327gdb_start
328dbx_reinitialize_dir $srcdir/$subdir
329gdb_load ${binfile}
330
331test_breakpoints
332test_assign
333test_whereis
334gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
335test_func
336
337#exit and cleanup
338gdb_exit
339
340set GDBFLAGS $saved_gdbflags
341eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
342
343return 0
344