gdb/testsuite/gdb.trace/backtrace.exp

   1 #   Copyright (C) 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
  22 load_lib "trace-support.exp";
  23
  24 if $tracelevel then {
  25     strace $tracelevel
  26 }
  27
  28 set prms_id 0
  29 set bug_id 0
  30
  31 gdb_exit
  32 gdb_start
  33
  34 if [istarget "m68k-*-elf"] then {
  35     load_lib "emc-support.exp";
  36     set srcfile gdb_c_test.c
  37     set binfile [board_info target d490_binfile];
  38     gdb_test "set remotetimeout 6" "" ""
  39     set timeout 500
  40     gdb_target_monitor "$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 }
  65 gdb_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!
  69 if { ![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
  79 set testline1 0
  80 set testline2 0
  81 set testline3 0
  82 set testline4 0
  83 set testline5 0
  84 set testline6 0
  85
  86 set arg1 1
  87 set arg2 2
  88 set arg3 3
  89 set arg4 4
  90 set arg5 5
  91 set arg6 6
  92
  93 set baseline [gdb_find_recursion_test_baseline $srcfile];
  94 if { $baseline == -1 } {
  95     fail "Could not find gdb_recursion_test function"
  96     return;
  97 }
  98
  99 send_gdb "list $baseline, +12\n"
 100 gdb_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:
 128 all tests in this module will fail."
 129         }
 130     }
 131     default {
 132             gdb_suppress_entire_file "failed to locate test source lines (def):
 133 all 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
 145 gdb_delete_tracepoints
 146 set tdp2 [gdb_gettpnum $testline2]
 147 set tdp3 [gdb_gettpnum $testline3]
 148 set tdp4 [gdb_gettpnum $testline4]
 149 set tdp5 [gdb_gettpnum $testline5]
 150 set tdp6 [gdb_gettpnum $testline6]
 151 if {    $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
 162 gdb_trace_setactions "8.6: setup TP to collect regs" \
 163         "$tdp3" \
 164         "collect \$regs" "^$"
 165
 166 gdb_trace_setactions "8.6: setup TP to collect regs, args, and locals" \
 167         "$tdp4" \
 168         "collect \$regs, \$args, \$locs" "^$"
 169
 170 gdb_trace_setactions "8.6: setup TP to collect stack mem cast expr" \
 171         "$tdp6" \
 172         "collect \$fp, \(\*\(void \*\*\) \(\$sp\)\) @ 64" "^$"
 173
 174 gdb_test "tstart" "" ""
 175
 176 if [istarget "m68k-*-elf"] then {
 177     gdb_emclaptop_command "85,$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
 186 gdb_test "tstop" "" ""
 187
 188 proc 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
 209 proc 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
 230 proc 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 "$msg (timeout)" }
 249     }
 250 }
 251
 252 proc gdb_backtrace_tdp_4 { msg depth } {
 253     global gdb_prompt
 254
 255     # We are in a trace frame at which we collected all registers,
 256     # plus a sizeable hunk of stack memory.  This should enable us to
 257     # display at least several stack frames worth of backtrace.  We'll
 258     # assume that if we can't display at least "depth" levels (with
 259     # args), it counts as an error.
 260
 261     send_gdb "backtrace\n"
 262     gdb_expect {
 263         -re "#$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
 283 set timeout 60
 284
 285 gdb_tfind_test "init: make sure not debugging any trace frame" "none" "-1"
 286
 287 gdb_tfind_test "8.6: find start frame" "start" "0"
 288 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 289         "TDP $tdp2:" ""
 290 gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 1, collect nothing"
 291
 292 gdb_tfind_test "8.6: find frame 1"     "1" "1"
 293 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 294         "TDP $tdp3:" ""
 295 gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 1, collect regs"
 296
 297 gdb_tfind_test "8.6: find frame 2"     "2" "2"
 298 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 299         "TDP $tdp4:" ""
 300 gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 1, collect args and locals"
 301
 302
 303 gdb_tfind_test "8.6: find frame 4"     "4" "4"
 304 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 305         "TDP $tdp6:" ""
 306 gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
 307
 308 gdb_tfind_test "8.6: find frame 5"     "5" "5"
 309 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 310         "TDP $tdp2:" ""
 311 gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 2, collect nothing"
 312
 313 gdb_tfind_test "8.6: find frame 6"     "6" "6"
 314 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 315         "TDP $tdp3:" ""
 316 gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 2, collect regs"
 317
 318 gdb_tfind_test "8.6: find frame 7"     "7" "7"
 319 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 320         "TDP $tdp4:" ""
 321 gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 2, collect args and locals"
 322
 323
 324 gdb_tfind_test "8.6: find frame 9"     "9" "9"
 325 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 326         "TDP $tdp6:" ""
 327 gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
 328
 329 gdb_tfind_test "8.6: find frame 10"    "10" "10"
 330 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 331         "TDP $tdp2:" ""
 332 gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 3, collect nothing"
 333
 334 gdb_tfind_test "8.6: find frame 11"    "11" "11"
 335 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 336         "TDP $tdp3:" ""
 337 gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 3, collect regs"
 338
 339 gdb_tfind_test "8.6: find frame 12"    "12" "12"
 340 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 341         "TDP $tdp4:" ""
 342 gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 3, collect args and locals"
 343
 344
 345 gdb_tfind_test "8.6: find frame 14"    "14" "14"
 346 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 347         "TDP $tdp6:" ""
 348 gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
 349
 350 gdb_tfind_test "8.6: find frame 15"    "15" "15"
 351 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 352         "TDP $tdp2:" ""
 353 gdb_backtrace_tdp_1 "8.6: Backtrace, depth == 4, collect nothing"
 354
 355 gdb_tfind_test "8.6: find frame 16"    "16" "16"
 356 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 357         "TDP $tdp3:" ""
 358 gdb_backtrace_tdp_2 "8.6: Backtrace, depth == 4, collect regs"
 359
 360 gdb_tfind_test "8.6: find frame 17"    "17" "17"
 361 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 362         "TDP $tdp4:" ""
 363 gdb_backtrace_tdp_3 "8.6: Backtrace, depth == 4, collect args and locals"
 364
 365
 366 gdb_tfind_test "8.6: find frame 19"    "19" "19"
 367 gdb_test "printf \"TDP \%d:\\n\", \$tracepoint" \
 368         "TDP $tdp6:" ""
 369 gdb_backtrace_tdp_4 "8.6: Backtrace, depth == 1, collect stack mem expr" "0"
 370
 371 gdb_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!
 376 gdb_test "tfind none" "" ""