gdb/testsuite/gdb.trace/change-loc.exp

   1 # Copyright 2011-2023 Free Software Foundation, Inc.
   2 # This program is free software; you can redistribute it and/or modify
   3 # it under the terms of the GNU General Public License as published by
   4 # the Free Software Foundation; either version 3 of the License, or
   5 # (at your option) any later version.
   6 #
   7 # This program is distributed in the hope that it will be useful,
   8 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 # GNU General Public License for more details.
  11 #
  12 # You should have received a copy of the GNU General Public License
  13 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14
  15 load_lib "trace-support.exp"
  16
  17 if {[skip_shlib_tests]} {
  18     return 0
  19 }
  20
  21 if ![gdb_trace_common_supports_arch] {
  22     unsupported "no trace-common.h support for arch"
  23     return -1
  24 }
  25
  26 standard_testfile
  27 set libfile1 "change-loc-1"
  28 set libfile2 "change-loc-2"
  29 set executable $testfile
  30 set libsrc1 $srcdir/$subdir/$libfile1.c
  31 set libsrc2 $srcdir/$subdir/$libfile2.c
  32 set lib_sl1 [standard_output_file $libfile1.sl]
  33 set lib_sl2 [standard_output_file $libfile2.sl]
  34
  35 set lib_opts debug
  36
  37 # Some targets have leading underscores on assembly symbols.
  38 set additional_flags [list debug shlib=$lib_sl1 shlib_load [gdb_target_symbol_prefix_flags]]
  39
  40 if { [gdb_compile_shlib $libsrc1 $lib_sl1 $lib_opts] != ""
  41      || [gdb_compile_shlib $libsrc2 $lib_sl2 $lib_opts] != ""
  42      || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $additional_flags] != ""} {
  43     untested "failed to compile"
  44     return -1
  45 }
  46
  47 clean_restart $executable
  48
  49 gdb_load_shlib $lib_sl1
  50 gdb_load_shlib $lib_sl2
  51
  52 if ![runto_main] {
  53     return -1
  54 }
  55
  56 if {![gdb_target_supports_trace]} {
  57     unsupported "current target does not support trace"
  58     return -1
  59 }
  60
  61
  62 # Set tracepoint during tracing experiment.
  63
  64 proc tracepoint_change_loc_1 { trace_type } {
  65     with_test_prefix "1 $trace_type" {
  66         global testfile
  67         global srcfile
  68         global pcreg
  69         global gdb_prompt
  70
  71         clean_restart ${testfile}
  72         if ![runto_main] {
  73             return -1
  74         }
  75         gdb_test_no_output "delete break 1"
  76
  77         # Set a tracepoint we'll never meet.  Just to avoid the
  78         # complain after type `tstart' later.
  79         gdb_test "next" ".*"
  80         gdb_test "trace main" \
  81             "Tracepoint \[0-9\] at.* file .*$srcfile, line.*" \
  82             "set tracepoint on main"
  83
  84         gdb_test "break marker" \
  85             "Breakpoint.*at.* file .*$srcfile, line.*" \
  86             "breakpoint on marker"
  87
  88         gdb_test_no_output "tstart"
  89
  90         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
  91             "continue to marker 1"
  92         # Set a tracepoint during tracing.
  93         set test "set tracepoint on set_tracepoint"
  94         gdb_test_multiple "${trace_type} set_tracepoint" $test {
  95             -re "Target returns error code .* too far .*$gdb_prompt $" {
  96                 if [string equal $trace_type "ftrace"] {
  97                     # The target was unable to install the fast tracepoint
  98                     # (e.g., jump pad too far from tracepoint).
  99                     pass "$test (too far)"
 100                 } else {
 101                     fail $test
 102                 }
 103             }
 104             -re "\r\n$gdb_prompt $" {
 105                 pass $test
 106             }
 107         }
 108
 109         gdb_trace_setactions "set action for tracepoint" "" \
 110             "collect \$$pcreg" "^$"
 111
 112         # tracepoint has two locations after shlib change-loc-1 is loaded.
 113         gdb_test "info trace" \
 114             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 115 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*4\.1.* in func4.*4\.2.* in func4.*" \
 116             "tracepoint with two locations"
 117
 118         set test "continue to marker 2"
 119         gdb_test_multiple "continue" $test {
 120             -re "Target returns error code .* too far .*$gdb_prompt $" {
 121                 if [string equal $trace_type "ftrace"] {
 122                     # Expected if the target was unable to install the
 123                     # fast tracepoint (e.g., jump pad too far from
 124                     # tracepoint).
 125                     pass "$test (too far)"
 126                     # Skip the rest of the tests.
 127                     return
 128                 } else {
 129                     fail "continue to marker 2"
 130                     fail $test
 131                 }
 132
 133             }
 134             -re ".*Breakpoint.*marker.*at.*$srcfile.*$gdb_prompt $" {
 135                 pass "continue to marker 2"
 136             }
 137         }
 138
 139         # tracepoint has three locations after shlib change-loc-2 is
 140         # loaded.
 141         gdb_test "info trace" \
 142             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 143 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*4\.1.* in func4.*4\.2.* in func4.*4\.3.* in func4 .*" \
 144             "tracepoint with three locations"
 145
 146         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
 147             "continue to marker 3"
 148
 149         # shlib is unloaded, there are still three locations, but one
 150         # is pending.
 151         gdb_test "info trace" \
 152             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 153 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*
 154 (4\.\[1-3].* in func4.*\tinstalled on target.*){2}" \
 155             "tracepoint with two locations - installed (unload)"
 156
 157         gdb_test "info trace" \
 158             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 159 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*
 160 4\.\[1-3].* \<PENDING\>\[\t \]+set_tracepoint.*" \
 161             "tracepoint with two locations - pending (unload)"
 162
 163         gdb_test_no_output "tstop"
 164
 165         gdb_test "tfind" "Found trace frame 0, tracepoint 4.*" \
 166             "tfind frame 0"
 167         gdb_test "tfind" \
 168             "Target failed to find requested trace frame\\..*"
 169     }
 170 }
 171
 172 # Set pending tracepoint.
 173
 174 proc tracepoint_change_loc_2 { trace_type } {
 175     with_test_prefix "2 $trace_type" {
 176         global srcdir
 177         global srcfile
 178         global subdir
 179         global pcreg
 180         global binfile
 181         global gdb_prompt
 182
 183         gdb_exit
 184         gdb_start
 185         gdb_reinitialize_dir $srcdir/$subdir
 186
 187         gdb_test_multiple "${trace_type} set_tracepoint" "set pending tracepoint" {
 188             -re ".*Make \(|fast \)tracepoint pending.*y or \\\[n\\\]. $" {
 189                 gdb_test "y" "\(Fast t|T\)racepoint.*set_tracepoint.*pending." "set pending tracepoint"
 190             }
 191         }
 192
 193         gdb_trace_setactions "set action for tracepoint" "" \
 194             "collect \$$pcreg" "^$"
 195
 196         # tracepoint has no location information now.  Make sure nothing
 197         # else is displayed.
 198         gdb_test "info trace" \
 199             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 200 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*PENDING.*set_tracepoint\r\n\[\t \]+collect \\$$pcreg\r" \
 201             "single pending tracepoint info (without symbols)"
 202
 203         gdb_load ${binfile}
 204         # tracepoint has one location after executable is loaded.
 205         gdb_test "info trace" \
 206             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 207 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*func4.*" \
 208             "tracepoint with one location"
 209
 210         set main_bp 0
 211         gdb_test_multiple "break -q main" "set breakpoint on main" {
 212             -re "Breakpoint (\[0-9\]*) at .*, line.*$gdb_prompt $" {
 213                 set main_bp $expect_out(1,string)
 214             }
 215         }
 216         gdb_run_cmd
 217
 218         gdb_test "" \
 219             ".*Breakpoint.*main.*at.*$srcfile.*" \
 220             "run to main"
 221         gdb_test_no_output "delete break $main_bp"
 222
 223         # tracepoint has two locations after shlib change-loc-1 is loaded.
 224         gdb_test "info trace" \
 225             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 226 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*1\.1.* in func4.*1\.2.* in func4.*" \
 227             "tracepoint with two locations"
 228
 229         gdb_test "break marker" "Breakpoint.*at.* file .*$srcfile, line.*" \
 230             "breakpoint on marker"
 231
 232         # tracepoint with two locations will be downloaded and installed.
 233         set test "tstart"
 234         gdb_test_multiple "tstart" $test {
 235             -re "^tstart\r\n$gdb_prompt $" {
 236                 pass "tstart"
 237             }
 238             -re "Target returns error code .* too far .*$gdb_prompt $" {
 239                 if [string equal $trace_type "ftrace"] {
 240                     # The target was unable to install the fast tracepoint
 241                     # (e.g., jump pad too far from tracepoint).
 242                     pass "$test (too far)"
 243                     # Skip the rest of the tests.
 244                     return
 245                 } else {
 246                     fail $test
 247                 }
 248             }
 249         }
 250
 251         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
 252             "continue to marker 1"
 253
 254         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
 255             "continue to marker 2"
 256
 257         # tracepoint has three locations after shlib change-loc-2 is loaded.
 258         gdb_test "info trace" \
 259             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 260 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*1\.1.* in func4.*1\.2.* in func4.*1\.3.* in func4 .*" \
 261             "tracepoint with three locations"
 262
 263         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
 264             "continue to marker 3"
 265
 266         # shlib is unloaded, there are still three locations, but one is pending.
 267         gdb_test "info trace" \
 268             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 269 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*
 270 (1\.\[1-3].* in func4.*\tinstalled on target.*){2}" \
 271             "tracepoint with two locations - installed (unload)"
 272
 273         gdb_test "info trace" \
 274             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 275 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*\<MULTIPLE\>.*
 276 1\.\[1-3].* \<PENDING\>\[\t \]+set_tracepoint.*" \
 277             "tracepoint with two locations - pending (unload)"
 278
 279         gdb_test_no_output "tstop"
 280
 281         gdb_test "tfind" "Found trace frame 0, tracepoint 1.*" "tfind frame 0"
 282         gdb_test "tfind" "Found trace frame 1, tracepoint 1.*" "tfind frame 1"
 283         gdb_test "tfind" "Found trace frame 2, tracepoint 1.*" "tfind frame 2"
 284         gdb_test "tfind" "Target failed to find requested trace frame\\..*"
 285     }
 286 }
 287
 288 # Test that setting a tracepoint while the trace experiment is ongoing
 289 # doesn't work when we force-disable the InstallInTrace RSP feature.
 290
 291 proc tracepoint_install_in_trace_disabled { trace_type } {
 292     with_test_prefix "InstallInTrace disabled: $trace_type" {
 293         global testfile
 294         global srcfile
 295         global pcreg
 296         global gdb_prompt
 297
 298         clean_restart ${testfile}
 299         if ![runto_main] {
 300             return -1
 301         }
 302
 303         # This test only makes sense with the remote target.
 304         if ![gdb_is_target_remote] {
 305             return
 306         }
 307
 308         gdb_test_no_output "delete break 1"
 309
 310         # Set a tracepoint we'll never meet.  Just to avoid the
 311         # complain after `tstart' later.
 312         gdb_test "next" ".*"
 313         gdb_test "trace main" \
 314             "Tracepoint \[0-9\] at.* file .*$srcfile, line.*" \
 315             "set tracepoint on main"
 316
 317         gdb_test "break marker" "Breakpoint.*at.* file .*$srcfile, line.*" \
 318             "breakpoint on marker"
 319
 320         gdb_test_no_output "tstart"
 321
 322         # Force-disable the InstallInTrace RSP feature.
 323         gdb_test_no_output "set remote install-in-trace-packet off"
 324
 325         # Set a tracepoint while a trace experiment is ongoing.
 326         gdb_test "${trace_type} set_tracepoint" \
 327             "racepoint .* at .* set_tracepoint.*" \
 328             "set tracepoint on set_tracepoint"
 329
 330         gdb_trace_setactions "set action for tracepoint" "" \
 331             "collect \$$pcreg" "^$"
 332
 333         # Make sure the tracepoint is _not_ installed on the target.
 334         gdb_test "info trace" \
 335             "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
 336 \[0-9\]+\[\t \]+\(|fast \)tracepoint\[ \]+keep y.*installed on target.*\<MULTIPLE\>.*4\.1.* in func4.*not installed on target.*4\.2.* in func4.*not installed on target.*" \
 337             "tracepoint is not installed"
 338
 339         gdb_test "continue" ".*Breakpoint.*marker.*at.*$srcfile.*" \
 340             "continue to marker"
 341
 342         gdb_test_no_output "tstop"
 343
 344         # Nothing should have been collected.
 345         gdb_test "tfind" "Target failed to find requested trace frame\\..*"
 346     }
 347 }
 348
 349 tracepoint_change_loc_1 "trace"
 350 tracepoint_change_loc_2 "trace"
 351 tracepoint_install_in_trace_disabled "trace"
 352
 353 # Re-compile test case with IPA.
 354 set libipa [get_in_proc_agent]
 355 gdb_load_shlib $libipa
 356
 357 if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable \
 358           [list debug nowarnings shlib=$libipa shlib=$lib_sl1 shlib_load] ] != "" } {
 359     untested "failed to compile"
 360     return -1
 361 }
 362
 363 tracepoint_change_loc_1 "ftrace"
 364 tracepoint_change_loc_2 "ftrace"
 365 tracepoint_install_in_trace_disabled "ftrace"