1# Copyright 1998, 1999, 2001 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 2 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, write to the Free Software
15# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
16
17# Please email any bugs, comments, and/or additions to this file to:
18# bug-gdb@prep.ai.mit.edu
19
20
21if $tracelevel then {
22        strace $tracelevel
23}
24
25set testfile1 "average"
26set testfile2 "sum"
27set testfile "dbx-test"
28set binfile1 ${objdir}/${subdir}/${testfile1}
29set binfile2 ${objdir}/${subdir}/${testfile2}
30set binfile ${objdir}/${subdir}/${testfile}
31
32
33
34if  { [gdb_compile "${srcdir}/${subdir}/average.c" "${binfile1}.o" object {debug}] != "" } {
35     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
36}
37
38if  { [gdb_compile "${srcdir}/${subdir}/sum.c" "${binfile2}.o" object {debug}] != "" } {
39     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
40}
41
42if  { [gdb_compile "${binfile1}.o ${binfile2}.o" ${binfile} executable {debug}] != "" } {
43     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
44}
45
46#
47# start gdb -- start gdb running, default procedure
48#
49proc dbx_gdb_start { } {
50    global verbose
51    global GDB
52    global GDBFLAGS
53    global prompt
54    global spawn_id
55    global timeout
56    verbose "Spawning $GDB -nw $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 -nw -dbx $GDBFLAGS"
66    gdb_expect {
67        -re ".*\r\n$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
185    if [is_remote host] {
186        set arg [remote_download host $arg];
187        if { $arg == "" } {
188            error "download failed"
189            return -1;
190        }
191    }
192
193    send_gdb "symbol-file $arg\n"
194    gdb_expect {
195	-re "Detected 64-bit symbol file.\r\nInvoking.*gdb64.*$gdb_prompt $" {
196            verbose "\t\tLoaded $arg into the $GDB"
197            send_gdb "exec-file $arg\n"
198            gdb_expect {
199                -re ".*$gdb_prompt $" {
200                    verbose "\t\tLoaded $arg with new symbol table into $GDB"
201                    return 0
202                }
203                timeout {
204                    perror "(timeout) Couldn't load $arg"
205                    return -1
206                }
207            }
208            return 0
209        }
210        -re "Reading symbols from.*done.*$gdb_prompt $" {
211            verbose "\t\tLoaded $arg into the $GDB"
212            send_gdb "exec-file $arg\n"
213            gdb_expect {
214	        -re "A program is being debugged already.*Kill it.*y or n. $" {
215	            send_gdb "y\n"
216	                verbose "\t\tKilling previous program being debugged"
217	            exp_continue
218	        }
219                -re ".*$gdb_prompt $" {
220                    verbose "\t\tLoaded $arg with new symbol table into $GDB"
221                    return 0
222                }
223                timeout {
224                    perror "(timeout) Couldn't load $arg"
225                    return -1
226                }
227            }
228            return 0
229        }
230        -re "has no symbol-table.*$gdb_prompt $" {
231            perror "$arg wasn't compiled with \"-g\""
232            return -1
233        }
234        -re "Load new symbol table from \".*\".*y or n. $" {
235            send_gdb "y\n"
236	    exp_continue
237        }
238        -re ".*No such file or directory.*$gdb_prompt $" {
239            perror "($arg) No such file or directory\n"
240            return -1
241        }
242        -re "$gdb_prompt $" {
243            perror "couldn't load $arg into $GDB."
244            return -1
245            }
246        timeout {
247            perror "couldn't load $arg into $GDB (timed out)."
248            return -1
249        }
250        eof {
251            # This is an attempt to detect a core dump, but seems not to
252            # work.  Perhaps we need to match .* followed by eof, in which
253            # expect does not seem to have a way to do that.
254            perror "couldn't load $arg into $GDB (end of file)."
255            return -1
256        }
257    }
258}
259
260#
261#test_breakpoints
262#
263proc test_breakpoints { } {
264    gdb_test "stop in main" "Breakpoint.*at.*: file.*average\.c, line 38\."
265    gdb_test "status" "Num.*Type.*Disp.*Enb.*Address.*What\r\n1\[ \r\]+breakpoint\[ \r\]+keep y.*in main at.*average\.c:38.*"
266    gdb_test "stop at 43" "Breakpoint.*at.*: file.*average\.c, line 43.*"
267    gdb_test "stop in 43" "Usage: stop in <function . address>"
268    gdb_test "stop at main" "Usage: stop at <line>"
269}
270
271#
272#test_assign
273#
274proc test_assign { } {
275    global decimal
276    global gdb_prompt
277
278    gdb_run_cmd
279    gdb_expect 30 {
280        -re "Break.* at .*:$decimal.*$gdb_prompt $" { pass "running to main" }
281        -re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in .*$gdb_prompt $" { pass "running to main"  }
282        -re "$gdb_prompt $" { fail "running to main" }
283        timeout { fail "running to main (timeout)" }
284    }
285    send_gdb "assign first=1\n"
286    gdb_expect {
287      -re "No symbol \"first\" in current context.*$" { fail "assign first" }
288      "$gdb_prompt $" { pass "assign first" }
289      timeout { fail "assign first (timeout)" }
290    }
291    gdb_test "print first" ".1 = 1"
292}
293
294#
295#test_whereis
296#
297proc test_whereis { } {
298    gdb_test "whereis my_list" "All variables matching regular expression \"my_list\":\r\n\r\nFile.*average\.c:\r\nstatic int my_list\\\[10\\\];"
299}
300
301#
302#test_func
303#
304proc test_func { } {
305    gdb_test "cont" "" "cont 1"
306    gdb_test "step" ""
307    # This always fails, but it's not clear why. -sts 1999-08-17
308    setup_xfail "*-*-*"
309    gdb_test "func sum" "'sum' not within current stack frame\."
310    gdb_test "stop in sum" "Breakpoint.*at.*: file.*sum\.c, line 11\."
311    gdb_test "cont" "" "cont 2"
312    # This always fails, but it's not clear why. -sts 1999-08-17
313    setup_xfail "*-*-*"
314    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\\);"
315}
316
317# Start with a fresh gdb.
318
319gdb_exit
320global GDBFLAGS
321set saved_gdbflags $GDBFLAGS
322
323set GDBFLAGS "$GDBFLAGS --dbx"
324gdb_start
325dbx_reinitialize_dir $srcdir/$subdir
326gdb_load ${binfile}
327
328test_breakpoints
329test_assign
330test_whereis
331gdb_test "file average.c:1" "1\[ \t\]+/. This is a sample program.*"
332test_func
333
334#exit and cleanup
335gdb_exit
336
337set GDBFLAGS $saved_gdbflags
338eval proc gdb_file_cmd {$old_gdb_file_cmd_args} {$old_gdb_file_cmd_body}
339
340return 0
341