1#   Copyright 1998 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# This file was written by Michael Snyder (msnyder@cygnus.com)
21
22load_lib "trace-support.exp";
23
24if $tracelevel then {
25    strace $tracelevel
26}
27
28set prms_id 0
29set bug_id 0
30
31gdb_exit
32gdb_start
33
34if [istarget "m68k-*-elf"] then {
35    load_lib "emc-support.exp";
36    set srcfile gdb_c_test.c
37    set binfile [board_info target d490_binfile];
38    gdb_test "set remotetimeout 6" "" ""
39    set timeout 500
40    gdb_target_monitor "$binfile"
41    # Give a TSTOP and ignore errors, to make sure any previous trace is off
42    gdb_test "tstop" "" ""
43    gdb_test "tfind none"  "" ""
44    send_gdb "compare-sections CS\n"
45    gdb_expect {
46	-re "MIS-MATCHED.*$gdb_prompt $" {
47	    gdb_suppress_entire_file "Symbol file does not match target!
48	    all tests in this module will fail.";
49	}
50	-re ".*$gdb_prompt $" { }
51    }
52} else {
53    set testfile "actions"
54    set srcfile ${testfile}.c
55    set binfile $objdir/$subdir/$testfile
56    if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
57	    executable {debug additional_flags=-w}] != "" } {
58	gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
59    }
60    gdb_load $binfile
61    gdb_test "tstop"       "" ""
62    gdb_test "tfind none"  "" ""
63    runto_main
64}
65gdb_reinitialize_dir $srcdir/$subdir
66
67# We generously give ourselves one "pass" if we successfully
68# detect that this test cannot be run on this target!
69if { ![gdb_target_supports_trace] } then {
70    pass "Current target does not supporst trace"
71    return 1;
72
73}
74
75#
76# test backtraces in trace frames
77#
78
79set testline1 0
80set testline2 0
81set testline3 0
82set testline4 0
83set testline5 0
84set testline6 0
85
86set arg1 1
87set arg2 2
88set arg3 3
89set arg4 4
90set arg5 5
91set arg6 6
92
93set baseline [gdb_find_recursion_test_baseline $srcfile];
94if { $baseline == -1 } {
95    fail "Could not find gdb_recursion_test function"
96    return;
97}
98
99send_gdb "list $baseline, +12\n"
100gdb_expect {
101    -re "\[\r\n\](\[0-9\]+).*gdbtestline 1 " {
102	set testline1 $expect_out(1,string)
103	exp_continue
104    }
105    -re "\[\r\n\](\[0-9\]+).*gdbtestline 2 " {
106	set testline2 $expect_out(1,string)
107	exp_continue
108    }
109    -re "\[\r\n\](\[0-9\]+).*gdbtestline 3 " {
110	set testline3 $expect_out(1,string)
111	exp_continue
112    }
113    -re "\[\r\n\](\[0-9\]+).*gdbtestline 4 " {
114	set testline4 $expect_out(1,string)
115	exp_continue
116    }
117    -re "\[\r\n\](\[0-9\]+).*gdbtestline 5 " {
118	set testline5 $expect_out(1,string)
119	exp_continue
120    }
121    -re "\[\r\n\](\[0-9\]+).*gdbtestline 6 " {
122	set testline6 $expect_out(1,string)
123	exp_continue
124    }
125    -re ".*$gdb_prompt $" {
126	if { ($testline1 == 0) || ($testline2 == 0) || ($testline3 == 0) || ($testline4 == 0) || ($testline5 == 0) || ($testline6 == 0) } {
127	    gdb_suppress_entire_file "failed to locate test source lines:
128all tests in this module will fail."
129	}
130    }
131    default {
132	    gdb_suppress_entire_file "failed to locate test source lines (def):
133all tests in this module will fail."
134    }
135}
136
137#
138# Setup backtrace experiment.  This will involve:
139#   1) a tracepoint where nothing is collected
140#   2) a tracepoint where only regs are collected
141#   3) a tracepoint where regs, locals and args are collected
142#   4) a tracepoint where regs plus some amount of stack are collected.
143#
144
145gdb_delete_tracepoints
146set tdp2 [gdb_gettpnum $testline2]
147set tdp3 [gdb_gettpnum $testline3]
148set tdp4 [gdb_gettpnum $testline4]
149set tdp5 [gdb_gettpnum $testline5]
150set tdp6 [gdb_gettpnum $testline6]
151if {    $tdp2 <= 0 || $tdp3 <= 0 || \
152	$tdp4 <= 0 || $tdp5 <= 0 || $tdp6 <= 0 } then {
153    fail "setting tracepoints failed"
154    return;
155}
156
157#gdb_trace_setactions "setup TP to collect FP" \
158#	"$tdp2" \
159#	"collect \$fp" ""
160#
161
162gdb_trace_setactions "8.6: setup TP to collect regs" \
163	"$tdp3" \
164	"collect \$regs" "^$"
165
166gdb_trace_setactions "8.6: setup TP to collect regs, args, and locals" \
167	"$tdp4" \
168	"collect \$regs, \$args, \$locs" "^$"
169
170gdb_trace_setactions "8.6: setup TP to collect stack mem cast expr" \
171	"$tdp6" \
172	"collect \$fp, \(\*\(void \*\*\) \(\$sp\)\) @ 64" "^$"
173
174gdb_test "tstart" "" ""
175
176if [istarget "m68k-*-elf"] then {
177    gdb_emclaptop_command "85,$arg1,$arg2,$arg3,$arg4,$arg5,$arg6"
178    sleep 5
179} else {
180    gdb_test "break end" "" ""
181    gdb_test "continue" \
182	    "Continuing.*Breakpoint $decimal, end.*" \
183	    "run trace experiment"
184}
185
186gdb_test "tstop" "" ""
187
188proc gdb_backtrace_tdp_1 { msg } {
189    global gdb_prompt
190
191    # We are in a trace frame at which we didn't collect anything
192    # except $PC.  Therefore we expect to be able to identify stack
193    # frame #0, but that's about all.  In particular we do not expect
194    # to be able to display the function's arguments or locals, and we
195    # do not expect to be able to identify the caller of this function.
196
197    send_gdb "backtrace\n"
198    gdb_expect {
199	-re "#0\[\t \]+gdb_recursion_test.*depth=.*$gdb_prompt $" {
200	    pass "$msg"
201	}
202	-re ".*$gdb_prompt $" {
203	    fail "$msg"
204	}
205	timeout { fail "$msg (timeout)" }
206    }
207}
208
209proc gdb_backtrace_tdp_2 { msg } {
210    global gdb_prompt
211
212    # We are in a trace frame at which we collected only the registers
213    # Therefore we expect to be able to identify stack frame #0, but
214    # we don't expect to be able to display its args unles they are
215    # passed in registers (which isn't the case for m68k), and we
216    # don't expect to be able to identify the caller's stack frame.
217
218    send_gdb "backtrace\n"
219    gdb_expect {
220	-re "#0\[\t \]+gdb_recursion_test.*depth=.*$gdb_prompt $" {
221	    pass "$msg"
222	}
223	-re ".*$gdb_prompt $" {
224	    fail "$msg"
225	}
226	timeout { fail "$msg (timeout)" }
227    }
228}
229
230proc gdb_backtrace_tdp_3 { msg } {
231    global gdb_prompt
232
233    # We are in a trace frame at which we collected all registers, all
234    # arguments and all locals.  This means that the display of
235    # stack frame #0 should be complete (including argument values).
236
237    send_gdb "backtrace\n"
238    gdb_expect {
239	-re "#0\[\t \]+gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {
240	    pass "$msg"
241	}
242	-re "#0\[\t \]+gdb_recursion_test.*depth=Cannot access.*$gdb_prompt $" {
243	    fail "$msg (failed to collect arguments)"
244	}
245	-re ".*$gdb_prompt $" {
246	    fail "$msg"
247	}
248	timeout { fail "$msg (timeout)" }
249    }
250}
251
252proc gdb_backtrace_tdp_4 { msg depth } {
253    global gdb_prompt
254
255    # We are in a trace frame at which we collected all registers,
256    # plus a sizeable hunk of stack memory.  This should enable us to
257    # display at least several stack frames worth of backtrace.  We'll
258    # assume that if we can't display at least "depth" levels (with
259    # args), it counts as an error.
260
261    send_gdb "backtrace\n"
262    gdb_expect {
263	-re "#$depth\[\t \].*gdb_recursion_test.*depth=\[0-9\]+.*q1=\[0-9\]+.*q2=\[0-9\]+.*q3=\[0-9\]+.*q4=\[0-9\]+.*q5=\[0-9\]+.*q6=\[0-9\]+.*$gdb_prompt $" {
264	    pass "$msg"
265	}
266	-re "#$depth\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {
267	    fail "$msg (args missing from #$depth stack frame)"
268	}
269	-re "#\[0-9\]+\[\t \].*gdb_recursion_test.*depth=.*$gdb_prompt $" {
270	    fail "$msg (fewer than $depth stack frames found)"
271	}
272	-re ".*$gdb_prompt $" {
273	    fail "$msg"
274	}
275	timeout { fail "$msg (timeout)" }
276    }
277}
278
279#
280# begin backtrace test
281#
282
283set timeout 60
284
285gdb_tfind_test "init: make sure not debugging any trace frame" "none" "-1"
286
287gdb_tfind_test "8.6: find start frame" "start" "0"
288gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
289	"TDP $tdp2:" ""
290gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 1, collect nothing"
291
292gdb_tfind_test "8.6: find frame 1"     "1" "1"
293gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
294	"TDP $tdp3:" ""
295gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 1, collect regs"
296
297gdb_tfind_test "8.6: find frame 2"     "2" "2"
298gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
299	"TDP $tdp4:" ""
300gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 1, collect args and locals"
301
302
303gdb_tfind_test "8.6: find frame 4"     "4" "4"
304gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
305	"TDP $tdp6:" ""
306gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
307
308gdb_tfind_test "8.6: find frame 5"     "5" "5"
309gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
310	"TDP $tdp2:" ""
311gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 2, collect nothing"
312
313gdb_tfind_test "8.6: find frame 6"     "6" "6"
314gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
315	"TDP $tdp3:" ""
316gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 2, collect regs"
317
318gdb_tfind_test "8.6: find frame 7"     "7" "7"
319gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
320	"TDP $tdp4:" ""
321gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 2, collect args and locals"
322
323
324gdb_tfind_test "8.6: find frame 9"     "9" "9"
325gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
326	"TDP $tdp6:" ""
327gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
328
329gdb_tfind_test "8.6: find frame 10"    "10" "10"
330gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
331	"TDP $tdp2:" ""
332gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 3, collect nothing"
333
334gdb_tfind_test "8.6: find frame 11"    "11" "11"
335gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
336	"TDP $tdp3:" ""
337gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 3, collect regs"
338
339gdb_tfind_test "8.6: find frame 12"    "12" "12"
340gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
341	"TDP $tdp4:" ""
342gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 3, collect args and locals"
343
344
345gdb_tfind_test "8.6: find frame 14"    "14" "14"
346gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
347	"TDP $tdp6:" ""
348gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
349
350gdb_tfind_test "8.6: find frame 15"    "15" "15"
351gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
352	"TDP $tdp2:" ""
353gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 4, collect nothing"
354
355gdb_tfind_test "8.6: find frame 16"    "16" "16"
356gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
357	"TDP $tdp3:" ""
358gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 4, collect regs"
359
360gdb_tfind_test "8.6: find frame 17"    "17" "17"
361gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
362	"TDP $tdp4:" ""
363gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 4, collect args and locals"
364
365
366gdb_tfind_test "8.6: find frame 19"    "19" "19"
367gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
368	"TDP $tdp6:" ""
369gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
370
371gdb_test "printf \"x \%d x\\n\", depth == 3" \
372	"x 0 x" \
373	"1.13: trace in recursion: depth not equal to 3"
374
375# Finished!
376gdb_test "tfind none" "" ""
377