| 1 | # Copyright 1992-2016 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 3 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, see <http://www.gnu.org/licenses/>. |
| 15 | |
| 16 | # This file was written by Fred Fish. (fnf@cygnus.com) |
| 17 | |
| 18 | |
| 19 | standard_testfile |
| 20 | |
| 21 | if [get_compiler_info] { |
| 22 | return -1 |
| 23 | } |
| 24 | |
| 25 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| 26 | untested watchpoint.exp |
| 27 | return -1 |
| 28 | } |
| 29 | |
| 30 | # True if we're forcing no hardware watchpoints. |
| 31 | set no_hw 0 |
| 32 | |
| 33 | # Prepare for watchpoint tests by setting up two breakpoints and one |
| 34 | # watchpoint. |
| 35 | # |
| 36 | # We use breakpoints at marker functions to get past all the startup code, |
| 37 | # so we can get to the watchpoints in a reasonable amount of time from a |
| 38 | # known starting point. |
| 39 | # |
| 40 | # For simplicity, so we always know how to reference specific breakpoints or |
| 41 | # watchpoints by number, we expect a particular ordering and numbering of |
| 42 | # each in the combined breakpoint/watchpoint table, as follows: |
| 43 | # |
| 44 | # Number What Where |
| 45 | # 1 Breakpoint marker1() |
| 46 | # 2 Breakpoint marker2() |
| 47 | # 3 Watchpoint ival3 |
| 48 | |
| 49 | proc initialize {} { |
| 50 | global gdb_prompt |
| 51 | global hex |
| 52 | global decimal |
| 53 | global srcfile |
| 54 | |
| 55 | if [gdb_test "break marker1" "Breakpoint 1 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker1" ] { |
| 56 | return 0 |
| 57 | } |
| 58 | |
| 59 | |
| 60 | if [gdb_test "break marker2" "Breakpoint 2 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker2" ] { |
| 61 | return 0 |
| 62 | } |
| 63 | |
| 64 | |
| 65 | if [gdb_test "info break" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*" "info break in watchpoint.exp" ] { |
| 66 | return 0 |
| 67 | } |
| 68 | |
| 69 | gdb_test "watch ival3" ".*\[Ww\]atchpoint 3: ival3.*" "set watchpoint on ival3" |
| 70 | |
| 71 | if [gdb_test "info watch" "3\[ \]*.*watchpoint.*ival3" "watchpoint found in watchpoint/breakpoint table" ] { |
| 72 | return 0 |
| 73 | } |
| 74 | |
| 75 | |
| 76 | # After installing the watchpoint, we disable it until we are ready |
| 77 | # to use it. This allows the test program to run at full speed until |
| 78 | # we get to the first marker function. |
| 79 | |
| 80 | if [gdb_test "disable 3" "disable 3\[\r\n\]+" "disable watchpoint" ] { |
| 81 | return 0 |
| 82 | } |
| 83 | |
| 84 | |
| 85 | return 1 |
| 86 | } |
| 87 | |
| 88 | # |
| 89 | # Test simple watchpoint. |
| 90 | # |
| 91 | |
| 92 | proc test_simple_watchpoint {} { |
| 93 | global gdb_prompt |
| 94 | global hex |
| 95 | global decimal |
| 96 | |
| 97 | # Ensure that the watchpoint is disabled when we startup. |
| 98 | |
| 99 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] { |
| 100 | return 0 |
| 101 | } |
| 102 | |
| 103 | # Run until we get to the first marker function. |
| 104 | |
| 105 | gdb_run_cmd |
| 106 | set timeout 600 |
| 107 | set test "run to marker1 in test_simple_watchpoint" |
| 108 | set retcode [gdb_test_multiple "" $test { |
| 109 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 110 | pass $test |
| 111 | } |
| 112 | }] |
| 113 | |
| 114 | if { $retcode != 0 } { |
| 115 | return |
| 116 | } |
| 117 | |
| 118 | # After reaching the marker function, enable the watchpoint. |
| 119 | |
| 120 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "enable watchpoint" ] { |
| 121 | return |
| 122 | } |
| 123 | |
| 124 | |
| 125 | gdb_test "break func1" "Breakpoint.*at.*" |
| 126 | gdb_test_no_output "set \$func1_breakpoint_number = \$bpnum" |
| 127 | |
| 128 | gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, func1.*" \ |
| 129 | "continue to breakpoint at func1" |
| 130 | |
| 131 | # Continue until the first change, from -1 to 0 |
| 132 | |
| 133 | set test "watchpoint hit, first time" |
| 134 | gdb_test_multiple "cont" $test { |
| 135 | -re "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*$gdb_prompt $" { |
| 136 | pass $test |
| 137 | } |
| 138 | -re "Continuing.*Breakpoint.*func1.*$gdb_prompt $" { |
| 139 | setup_xfail "m68*-*-*" 2597 |
| 140 | fail "thought it hit breakpoint at func1 twice" |
| 141 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| 142 | gdb_test "continue" "\ |
| 143 | Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count;" \ |
| 144 | $test |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | # Check that the hit count is reported correctly |
| 149 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 1 time.*" "Watchpoint hit count is 1" |
| 150 | |
| 151 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| 152 | |
| 153 | # Continue until the next change, from 0 to 1. |
| 154 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" "watchpoint hit, second time" |
| 155 | |
| 156 | # Check that the hit count is reported correctly |
| 157 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 2 times.*" "Watchpoint hit count is 2" |
| 158 | |
| 159 | # Continue until the next change, from 1 to 2. |
| 160 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" "watchpoint hit, third time" |
| 161 | |
| 162 | # Check that the hit count is reported correctly |
| 163 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 3 times.*" "Watchpoint hit count is 3" |
| 164 | |
| 165 | # Continue until the next change, from 2 to 3. |
| 166 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" "watchpoint hit, fourth time" |
| 167 | |
| 168 | # Check that the hit count is reported correctly |
| 169 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 4 times.*" "Watchpoint hit count is 4" |
| 170 | |
| 171 | # Continue until the next change, from 3 to 4. |
| 172 | # Note that this one is outside the loop. |
| 173 | |
| 174 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" "watchpoint hit, fifth time" |
| 175 | |
| 176 | # Check that the hit count is reported correctly |
| 177 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 5 times.*" "Watchpoint hit count is 5" |
| 178 | |
| 179 | # Continue until we hit the finishing marker function. |
| 180 | # Make sure we hit no more watchpoints. |
| 181 | |
| 182 | gdb_test "cont" "Continuing.*Breakpoint.*marker2 \(\).*" \ |
| 183 | "continue to marker2" |
| 184 | |
| 185 | # Disable the watchpoint so we run at full speed until we exit. |
| 186 | |
| 187 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "watchpoint disabled" ] { |
| 188 | return |
| 189 | } |
| 190 | |
| 191 | |
| 192 | # Run until process exits. |
| 193 | |
| 194 | if [target_info exists gdb,noresults] { return } |
| 195 | |
| 196 | gdb_continue_to_end "continue to exit in test_simple_watchpoint" |
| 197 | } |
| 198 | |
| 199 | # Test disabling watchpoints. |
| 200 | |
| 201 | proc test_disabling_watchpoints {} { |
| 202 | global gdb_prompt |
| 203 | global binfile |
| 204 | global srcfile |
| 205 | global decimal |
| 206 | global hex |
| 207 | |
| 208 | gdb_test "info watch" "\[0-9]+\[ \]*.*watchpoint.*ival3.*" "watchpoints found in watchpoint/breakpoint table" |
| 209 | |
| 210 | # Ensure that the watchpoint is disabled when we startup. |
| 211 | |
| 212 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_disabling_watchpoints" ] { |
| 213 | return 0 |
| 214 | } |
| 215 | |
| 216 | |
| 217 | # Run until we get to the first marker function. |
| 218 | |
| 219 | gdb_run_cmd |
| 220 | set timeout 600 |
| 221 | set test "run to marker1 in test_disabling_watchpoints" |
| 222 | set retcode [gdb_test_multiple "" $test { |
| 223 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 224 | pass $test |
| 225 | } |
| 226 | }] |
| 227 | |
| 228 | if { $retcode != 0 } { |
| 229 | return |
| 230 | } |
| 231 | |
| 232 | # After reaching the marker function, enable the watchpoint. |
| 233 | |
| 234 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "watchpoint enabled" ] { |
| 235 | return |
| 236 | } |
| 237 | |
| 238 | |
| 239 | # Continue until the first change, from -1 to 0 |
| 240 | # Don't check the old value, because on VxWorks the variable value |
| 241 | # will not have been reinitialized. |
| 242 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = .*New value = 0.*ival3 = count; ival4 = count;.*" "watchpoint hit in test_disabling_watchpoints, first time" |
| 243 | |
| 244 | # Continue until the next change, from 0 to 1. |
| 245 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" "watchpoint hit in test_disabling_watchpoints, second time" |
| 246 | |
| 247 | # Disable the watchpoint but leave breakpoints |
| 248 | |
| 249 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint #2 in test_disabling_watchpoints" ] { |
| 250 | return 0 |
| 251 | } |
| 252 | |
| 253 | |
| 254 | # Check watchpoint list, looking for the entry that confirms the |
| 255 | # watchpoint is disabled. |
| 256 | gdb_test "info watchpoints" "\[0-9]+\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table" |
| 257 | |
| 258 | # Continue until we hit the finishing marker function. |
| 259 | # Make sure we hit no more watchpoints. |
| 260 | gdb_test "cont" "Continuing.*Breakpoint.*marker2 \\(\\).*" \ |
| 261 | "disabled watchpoint skipped" |
| 262 | |
| 263 | if [target_info exists gdb,noresults] { return } |
| 264 | |
| 265 | gdb_continue_to_end "continue to exit in test_disabling_watchpoints" |
| 266 | } |
| 267 | |
| 268 | # Test stepping and other mundane operations with watchpoints enabled |
| 269 | proc test_stepping {} { |
| 270 | global gdb_prompt |
| 271 | |
| 272 | if [runto marker1] then { |
| 273 | gdb_test "watch ival2" ".*\[Ww\]atchpoint \[0-9\]*: ival2" |
| 274 | |
| 275 | # Well, let's not be too mundane. It should be a *bit* of a challenge |
| 276 | gdb_test "break func2 if 0" "Breakpoint.*at.*" |
| 277 | gdb_test "p \$func2_breakpoint_number = \$bpnum" " = .*" |
| 278 | |
| 279 | gdb_test "p func1 ()" "= 73" \ |
| 280 | "calling function with watchpoint enabled" |
| 281 | |
| 282 | # |
| 283 | # "finish" brings us back to main. |
| 284 | # On some targets (e.g. alpha) gdb will stop from the finish in midline |
| 285 | # of the marker1 call. This is due to register restoring code on |
| 286 | # the alpha and might be caused by stack adjustment instructions |
| 287 | # on other targets. In this case we will step once more. |
| 288 | # |
| 289 | |
| 290 | send_gdb "finish\n" |
| 291 | gdb_expect { |
| 292 | -re "Run.*exit from.*marker1.* at" { |
| 293 | pass "finish from marker1" |
| 294 | } |
| 295 | default { fail "finish from marker1 (timeout)" ; return } |
| 296 | } |
| 297 | |
| 298 | gdb_expect { |
| 299 | -re "marker1 \\(\\);.*$gdb_prompt $" { |
| 300 | send_gdb "step\n" |
| 301 | exp_continue |
| 302 | } |
| 303 | -re "func1 \\(\\);.*$gdb_prompt $" { |
| 304 | pass "back at main from marker1" |
| 305 | } |
| 306 | -re ".*$gdb_prompt $" { |
| 307 | fail "back at main from marker1" |
| 308 | } |
| 309 | default { fail "back at main from marker1 (timeout)" ; return } |
| 310 | } |
| 311 | |
| 312 | gdb_test "next" "for \\(count = 0.*" "next to `for' in watchpoint.exp" |
| 313 | |
| 314 | # Now test that "until" works. It's a bit tricky to test |
| 315 | # "until", because compilers don't always arrange the code |
| 316 | # exactly the same way, and we might get slightly different |
| 317 | # sequences of statements. But the following should be true |
| 318 | # (if not it is a compiler or a debugger bug): The user who |
| 319 | # does "until" at every statement of a loop should end up |
| 320 | # stepping through the loop once, and the debugger should not |
| 321 | # stop for any of the remaining iterations. |
| 322 | |
| 323 | gdb_test "until" "ival1 = count.*" "until to ival1 assignment" |
| 324 | gdb_test "until" "ival3 = count.*" "until to ival3 assignment" |
| 325 | set test "until out of loop" |
| 326 | gdb_test_multiple "until" $test { |
| 327 | -re "(for \\(count = 0|\}).*$gdb_prompt $" { |
| 328 | gdb_test "until" "ival1 = count; /. Outside loop ./" $test |
| 329 | } |
| 330 | -re "ival1 = count; /. Outside loop ./.*$gdb_prompt $" { |
| 331 | pass $test |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | gdb_test "step" "ival2 = count.*" "step to ival2 assignment" |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | # Test stepping and other mundane operations with watchpoints enabled |
| 340 | proc test_watchpoint_triggered_in_syscall {} { |
| 341 | global gdb_prompt |
| 342 | |
| 343 | # These tests won't work without printf support. |
| 344 | if [gdb_skip_stdio_test "watchpoints triggered in syscall"] { |
| 345 | return |
| 346 | } |
| 347 | # Run until we get to the first marker function. |
| 348 | set x 0 |
| 349 | set y 0 |
| 350 | set testname "Watch buffer passed to read syscall" |
| 351 | if [runto marker2] then { |
| 352 | gdb_test "watch buf\[0\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[0\\\]" |
| 353 | gdb_test "watch buf\[1\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[1\\\]" |
| 354 | gdb_test "watch buf\[2\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[2\\\]" |
| 355 | gdb_test "watch buf\[3\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[3\\\]" |
| 356 | gdb_test "watch buf\[4\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[4\\\]" |
| 357 | gdb_test "break marker4" ".*Breakpoint.*" |
| 358 | |
| 359 | gdb_test_no_output "set doread = 1" |
| 360 | |
| 361 | # If we send gdb "123\n" before gdb has switched the tty, then it goes |
| 362 | # to gdb, not the inferior, and we lose. So that is why we have |
| 363 | # watchpoint.c prompt us, so we can wait for that prompt. |
| 364 | |
| 365 | send_gdb "continue\n" |
| 366 | gdb_expect { |
| 367 | -re "Continuing\\.\r\ntype stuff for buf now:" { |
| 368 | pass "continue to read" |
| 369 | } |
| 370 | default { |
| 371 | fail "continue to read" |
| 372 | return |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | set test "sent 123" |
| 377 | gdb_test_multiple "123" $test { |
| 378 | -re ".*\[Ww\]atchpoint.*buf\\\[0\\\].*Old value = 0.*New value = 49\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } |
| 379 | -re ".*\[Ww\]atchpoint.*buf\\\[1\\\].*Old value = 0.*New value = 50\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } |
| 380 | -re ".*\[Ww\]atchpoint.*buf\\\[2\\\].*Old value = 0.*New value = 51\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } |
| 381 | -re ".*\[Ww\]atchpoint.*buf\\\[3\\\].*Old value = 0.*New value = 10\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } |
| 382 | -re ".*$gdb_prompt $" { pass $test } |
| 383 | } |
| 384 | |
| 385 | # Examine the values in buf to see how many watchpoints we |
| 386 | # should have printed. |
| 387 | set test "print buf\[0\]" |
| 388 | gdb_test_multiple $test $test { |
| 389 | -re ".*= 49.*$gdb_prompt $" { set y [expr $y+1]; pass $test } |
| 390 | -re ".*= 0.*$gdb_prompt $" { $test } |
| 391 | } |
| 392 | set test "print buf\[1\]" |
| 393 | gdb_test_multiple $test $test { |
| 394 | -re ".*= 50.*$gdb_prompt $" { set y [expr $y+1]; pass $test } |
| 395 | -re ".*= 0.*$gdb_prompt $" { pass $test } |
| 396 | } |
| 397 | set test "print buf\[2\]" |
| 398 | gdb_test_multiple $test $test { |
| 399 | -re ".*= 51.*$gdb_prompt $" { set y [expr $y+1]; pass $test } |
| 400 | -re ".*= 0.*$gdb_prompt $" { pass $test } |
| 401 | } |
| 402 | set test "print buf\[3\]" |
| 403 | gdb_test_multiple $test $test { |
| 404 | -re ".*= 10.*$gdb_prompt $" { set y [expr $y+1]; pass $test } |
| 405 | -re ".*= 0.*$gdb_prompt $" { pass $test } |
| 406 | } |
| 407 | |
| 408 | # Did we find what we were looking for? If not, flunk it. |
| 409 | if [expr $x==$y] then { pass $testname } else { fail "$testname (only triggered $x watchpoints, expected $y)"} |
| 410 | |
| 411 | # Continue until we hit the finishing marker function. |
| 412 | # Make sure we hit no more watchpoints. |
| 413 | gdb_test "cont" "Continuing.*Breakpoint.*marker4 \\(\\).*" \ |
| 414 | "continue to marker4" |
| 415 | |
| 416 | # Disable everything so we can finish the program at full speed |
| 417 | gdb_test_no_output "disable" "disable in test_watchpoint_triggered_in_syscall" |
| 418 | |
| 419 | if [target_info exists gdb,noresults] { return } |
| 420 | |
| 421 | gdb_continue_to_end "continue to exit in test_watchpoint_triggered_in_syscall" |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | # Do a simple test of of watching through a pointer when the pointer |
| 426 | # itself changes. Should add some more complicated stuff here. |
| 427 | |
| 428 | proc test_complex_watchpoint {} { |
| 429 | global gdb_prompt |
| 430 | |
| 431 | if [runto marker4] then { |
| 432 | gdb_test "watch ptr1->val" ".*\[Ww\]atchpoint \[0-9\]*: ptr1->val" |
| 433 | gdb_test "break marker5" ".*Breakpoint.*" |
| 434 | |
| 435 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ptr1->val.*Old value = 1.*New value = 2.*" "Test complex watchpoint" |
| 436 | |
| 437 | # Continue until we hit the marker5 function. |
| 438 | # Make sure we hit no more watchpoints. |
| 439 | |
| 440 | gdb_test "cont" "Continuing.*Breakpoint.*marker5 \\(\\).*" \ |
| 441 | "did not trigger wrong watchpoint" |
| 442 | |
| 443 | # Test watches of things declared locally in a function. |
| 444 | # In particular, test that a watch of stack-based things |
| 445 | # is deleted when the stack-based things go out of scope. |
| 446 | # |
| 447 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| 448 | gdb_test "break marker6" ".*Breakpoint.*" |
| 449 | gdb_test "cont" "Continuing.*Breakpoint.*marker6 \\(\\).*" \ |
| 450 | "continue to marker6" |
| 451 | gdb_breakpoint [gdb_get_line_number "func2 breakpoint here"] |
| 452 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 453 | |
| 454 | # Test a watch of a single stack-based variable, whose scope |
| 455 | # is the function we're now in. This should auto-delete when |
| 456 | # execution exits the scope of the watchpoint. |
| 457 | # |
| 458 | gdb_test "watch local_a" ".*\[Ww\]atchpoint \[0-9\]*: local_a" "set local watch" |
| 459 | gdb_test "cont" "\[Ww\]atchpoint.*local_a.*" "trigger local watch" |
| 460 | |
| 461 | set test "self-delete local watch" |
| 462 | gdb_test_multiple "cont" $test { |
| 463 | -re "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*\r\n$gdb_prompt $" { |
| 464 | pass $test |
| 465 | } |
| 466 | -re "can't compute CFA for this frame.*\r\n$gdb_prompt $" { |
| 467 | global no_hw |
| 468 | |
| 469 | # GCC < 4.5.0 does not get LOCATIONS_VALID set by dwarf2read.c. |
| 470 | # Therefore epilogue unwinder gets applied which is |
| 471 | # incompatible with dwarf2_frame_cfa. |
| 472 | if {$no_hw && ([test_compiler_info {gcc-[0-3]-*}] |
| 473 | || [test_compiler_info {gcc-4-[0-4]-*}])} { |
| 474 | xfail "$test (old GCC has broken watchpoints in epilogues)" |
| 475 | return |
| 476 | } |
| 477 | fail $test |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 482 | # We should be in "func2" again now. Test a watch of an |
| 483 | # expression which includes both a stack-based local and |
| 484 | # something whose scope is larger than this invocation |
| 485 | # of "func2". This should also auto-delete. |
| 486 | # |
| 487 | gdb_test "watch local_a + ival5" ".*\[Ww\]atchpoint \[0-9\]*: local_a . ival5" \ |
| 488 | "set partially local watch" |
| 489 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ |
| 490 | "trigger1 partially local watch" |
| 491 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ |
| 492 | "trigger2 partially local watch" |
| 493 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ |
| 494 | "self-delete partially local watch" |
| 495 | |
| 496 | # We should be in "func2" again now. Test a watch of a |
| 497 | # static (non-stack-based) local. Since this has scope |
| 498 | # across any invocations of "func2", it should not auto- |
| 499 | # delete. |
| 500 | # |
| 501 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 502 | gdb_test "watch static_b" ".*\[Ww\]atchpoint \[0-9\]*: static_b" \ |
| 503 | "set static local watch" |
| 504 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: static_b.*" \ |
| 505 | "trigger static local watch" |
| 506 | gdb_test "cont" "Continuing.*marker6 \\(\\).*" \ |
| 507 | "continue after trigger static local watch" |
| 508 | gdb_test "info break" ".*watchpoint.*static_b.*" \ |
| 509 | "static local watch did not self-delete" |
| 510 | |
| 511 | # We should be in "recurser" now. Test a watch of a stack- |
| 512 | # based local. Symbols mentioned in a watchpoint are bound |
| 513 | # at watchpoint-creation. Thus, a watch of a stack-based |
| 514 | # local to a recursing function should be bound only to that |
| 515 | # one invocation, and should not trigger for other invocations. |
| 516 | # |
| 517 | gdb_test "tbreak recurser" ".*breakpoint.*" |
| 518 | gdb_test "cont" "Continuing.*recurser.*" |
| 519 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" |
| 520 | gdb_test "watch local_x" ".*\[Ww\]atchpoint \[0-9\]*: local_x" \ |
| 521 | "set local watch in recursive call" |
| 522 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_x.*New value = 2.*" \ |
| 523 | "trigger local watch in recursive call" |
| 524 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ |
| 525 | "self-delete local watch in recursive call" |
| 526 | |
| 527 | # Repeat the preceding test, but this time use "recurser::local_x" as |
| 528 | # the variable to track. |
| 529 | gdb_test "cont" "Continuing.*marker6.*" |
| 530 | gdb_test "tbreak recurser" ".*breakpoint.*" |
| 531 | gdb_test "cont" "Continuing.*recurser.*" |
| 532 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" |
| 533 | gdb_test "watch recurser::local_x" ".*\[Ww\]atchpoint \[0-9\]*: recurser::local_x" \ |
| 534 | "set local watch in recursive call with explicit scope" |
| 535 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: recurser::local_x.*New value = 2.*" \ |
| 536 | "trigger local watch with explicit scope in recursive call" |
| 537 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ |
| 538 | "self-delete local watch with explicit scope in recursive call (2)" |
| 539 | |
| 540 | # Disable everything so we can finish the program at full speed |
| 541 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| 542 | |
| 543 | if [target_info exists gdb,noresults] { return } |
| 544 | |
| 545 | gdb_continue_to_end "continue to exit in test_complex_watchpoint" |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | proc test_watchpoint_and_breakpoint {} { |
| 550 | global gdb_prompt |
| 551 | |
| 552 | # This is a test for PR breakpoints/7143, which involves setting a |
| 553 | # watchpoint right after you've reached a breakpoint. |
| 554 | |
| 555 | if [runto func3] then { |
| 556 | gdb_breakpoint [gdb_get_line_number "second x assignment"] |
| 557 | gdb_continue_to_breakpoint "second x assignment" |
| 558 | gdb_test "watch x" ".*atchpoint \[0-9\]+: x" |
| 559 | gdb_test "next" \ |
| 560 | ".*atchpoint \[0-9\]+: x\r\n\r\nOld value = 0\r\nNew value = 1\r\n.*" \ |
| 561 | "next after watch x" |
| 562 | |
| 563 | gdb_test_no_output "delete \$bpnum" "delete watch x" |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | proc test_constant_watchpoint {} { |
| 568 | gdb_test "watch 5" "Cannot watch constant value `5'." "number is constant" |
| 569 | gdb_test "watch (int *)5" "Cannot watch constant value `\\(int \\*\\)5'." \ |
| 570 | "number with cast is constant" |
| 571 | gdb_test "watch marker1" "Cannot watch constant value `marker1'." \ |
| 572 | "marker1 is constant" |
| 573 | gdb_test "watch count + 6" ".*atchpoint \[0-9\]+: count \\+ 6" |
| 574 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `count + 6'" |
| 575 | gdb_test "watch 7 + count" ".*atchpoint \[0-9\]+: 7 \\+ count" |
| 576 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `7 + count'" |
| 577 | } |
| 578 | |
| 579 | proc test_disable_enable_software_watchpoint {} { |
| 580 | # This is regression test for a bug that caused `enable' to fail |
| 581 | # for software watchpoints. |
| 582 | |
| 583 | # Watch something not memory to force a software watchpoint. |
| 584 | gdb_test {watch $pc} ".*atchpoint \[0-9\]+: .pc" |
| 585 | |
| 586 | gdb_test_no_output "disable \$bpnum" "disable watchpoint `\$pc'" |
| 587 | gdb_test_no_output "enable \$bpnum" "reenable watchpoint `\$pc'" |
| 588 | |
| 589 | gdb_test "info watchpoint \$bpnum" \ |
| 590 | ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+.pc.*" \ |
| 591 | "watchpoint `\$pc' is enabled" |
| 592 | |
| 593 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `\$pc'" |
| 594 | } |
| 595 | |
| 596 | proc test_watch_location {} { |
| 597 | global gdb_prompt |
| 598 | |
| 599 | gdb_breakpoint [gdb_get_line_number "func5 breakpoint here"] |
| 600 | gdb_continue_to_breakpoint "func5 breakpoint here" |
| 601 | |
| 602 | # Check first if a null pointer can be dereferenced on the target. |
| 603 | gdb_test_multiple "p *nullptr" "" { |
| 604 | -re "Cannot access memory at address 0x0.*$gdb_prompt $" { |
| 605 | gdb_test "watch -location nullptr->p->x" \ |
| 606 | "Cannot access memory at address 0x0" |
| 607 | } |
| 608 | -re ".*$gdb_prompt $" { |
| 609 | # Null pointer dereference is legitimate. |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | gdb_test "watch -location *x" "atchpoint .*: .*" "watch -location .x" |
| 614 | |
| 615 | gdb_test "continue" \ |
| 616 | "Continuing.*\[Ww\]atchpoint .*: .*New value = 27.*" \ |
| 617 | "continue with watch -location" |
| 618 | |
| 619 | gdb_test_no_output "delete \$bpnum" "delete watch -location" |
| 620 | } |
| 621 | |
| 622 | # Tests watching areas larger than a word. |
| 623 | |
| 624 | proc test_wide_location_1 {} { |
| 625 | global no_hw |
| 626 | global gdb_prompt |
| 627 | |
| 628 | # This test watches two words on most 32-bit ABIs, and one word on |
| 629 | # most 64-bit ABIs. |
| 630 | |
| 631 | # Platforms where the target can't watch such a large region |
| 632 | # should clear hw_expected below. |
| 633 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| 634 | || [istarget arm*-*-*] |
| 635 | || ([istarget powerpc*-*-*] && ![is_lp64_target])} { |
| 636 | set hw_expected 0 |
| 637 | } else { |
| 638 | set hw_expected 1 |
| 639 | } |
| 640 | |
| 641 | gdb_breakpoint [gdb_get_line_number "func6 breakpoint here"] |
| 642 | gdb_continue_to_breakpoint "func6 breakpoint here" |
| 643 | |
| 644 | if { $hw_expected } { |
| 645 | gdb_test "watch foo2" "Hardware watchpoint .*: .*" "watch foo2" |
| 646 | gdb_test "continue" \ |
| 647 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*" \ |
| 648 | "continue with watch foo2" |
| 649 | } else { |
| 650 | gdb_test "watch foo2" "atchpoint .*: .*" "watch foo2" |
| 651 | set test "continue with watch foo2" |
| 652 | gdb_test_multiple "cont" $test { |
| 653 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*$gdb_prompt $" { |
| 654 | pass $test |
| 655 | } |
| 656 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { |
| 657 | # This may happen with remote targets that support |
| 658 | # hardware watchpoints. We only find out the |
| 659 | # watchpoint was too large, for example, at insert |
| 660 | # time. If GDB is ever adjusted to downgrade the |
| 661 | # watchpoint automatically in this case, this match |
| 662 | # should be removed. |
| 663 | pass $test |
| 664 | } |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | gdb_test_no_output "delete \$bpnum" "delete watch foo2" |
| 669 | } |
| 670 | |
| 671 | proc test_wide_location_2 {} { |
| 672 | global no_hw |
| 673 | global gdb_prompt |
| 674 | |
| 675 | # This test watches four words on most 32-bit ABIs, and two words |
| 676 | # on 64-bit ABIs. |
| 677 | |
| 678 | # Platforms where the target can't watch such a large region |
| 679 | # should clear hw_expected below. |
| 680 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| 681 | || [istarget arm*-*-*] |
| 682 | || [istarget powerpc*-*-*]} { |
| 683 | set hw_expected 0 |
| 684 | } else { |
| 685 | set hw_expected 1 |
| 686 | } |
| 687 | |
| 688 | gdb_breakpoint [gdb_get_line_number "func7 breakpoint here"] |
| 689 | gdb_continue_to_breakpoint "func7 breakpoint here" |
| 690 | |
| 691 | if { $hw_expected } { |
| 692 | gdb_test "watch foo4" "Hardware watchpoint .*: .*" "watch foo4" |
| 693 | gdb_test "continue" \ |
| 694 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*" \ |
| 695 | "continue with watch foo4" |
| 696 | } else { |
| 697 | gdb_test "watch foo4" "atchpoint .*: .*" "watch foo4" |
| 698 | set test "continue with watch foo4" |
| 699 | gdb_test_multiple "cont" $test { |
| 700 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*$gdb_prompt $" { |
| 701 | pass $test |
| 702 | } |
| 703 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { |
| 704 | # This may happen with remote targets that support |
| 705 | # hardware watchpoints. We only find out the |
| 706 | # watchpoint was too large, for example, at insert |
| 707 | # time. If GDB is ever adjusted to downgrade the |
| 708 | # watchpoint automatically in this case, this match |
| 709 | # should be removed. |
| 710 | pass $test |
| 711 | } |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | gdb_test_no_output "delete \$bpnum" "delete watch foo4" |
| 716 | } |
| 717 | |
| 718 | proc test_inaccessible_watchpoint {} { |
| 719 | global gdb_prompt |
| 720 | |
| 721 | # This is a test for watchpoints on currently inaccessible (but later |
| 722 | # valid) memory. |
| 723 | |
| 724 | if [runto func4] then { |
| 725 | # Make sure we only allow memory access errors. |
| 726 | set msg "watchpoint refused to insert on nonexistent struct member" |
| 727 | gdb_test_multiple "watch struct1.nosuchmember" $msg { |
| 728 | -re ".*atchpoint \[0-9\]+: struct1.nosuchmember.*$gdb_prompt $" { |
| 729 | # PR breakpoints/9681 |
| 730 | fail $msg |
| 731 | } |
| 732 | -re "There is no member named nosuchmember\\..*$gdb_prompt $" { |
| 733 | pass $msg |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | # See whether a watchpoint on a normal variable is a hardware |
| 738 | # watchpoint or not. The watchpoints on NULL should be hardware |
| 739 | # iff this one is. |
| 740 | set watchpoint_msg "Watchpoint" |
| 741 | gdb_test_multiple "watch global_ptr" "watch global_ptr" { |
| 742 | -re "Watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { |
| 743 | pass "watch global_ptr" |
| 744 | } |
| 745 | -re "Hardware watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { |
| 746 | set watchpoint_msg "Hardware watchpoint" |
| 747 | pass "watch global_ptr" |
| 748 | } |
| 749 | } |
| 750 | delete_breakpoints |
| 751 | |
| 752 | # Make sure that we can watch a constant address, and correctly |
| 753 | # use a HW watchpoint if supported. |
| 754 | gdb_test "watch *(int *) 0" \ |
| 755 | "$watchpoint_msg \[0-9\]+: \\*\\(int \\*\\) 0" |
| 756 | delete_breakpoints |
| 757 | |
| 758 | # The same, but using -location through an indirection. |
| 759 | gdb_test "watch -location *global_ptr" \ |
| 760 | "$watchpoint_msg \[0-9\]+: \-location \\*global_ptr" |
| 761 | delete_breakpoints |
| 762 | |
| 763 | # This step requires two HW watchpoints. Since some platforms only |
| 764 | # have a single one, accept either SW or HW watchpoint in this case. |
| 765 | if {[skip_hw_watchpoint_multi_tests]} { |
| 766 | set watchpoint_msg "(Watchpoint|Hardware watchpoint)" |
| 767 | } |
| 768 | |
| 769 | gdb_test "watch *global_ptr" "$watchpoint_msg \[0-9\]+: \\\*global_ptr" |
| 770 | gdb_test "set \$global_ptr_breakpoint_number = \$bpnum" "" |
| 771 | gdb_test "next" ".*global_ptr = buf.*" "global_ptr next" |
| 772 | gdb_test_multiple "next" "next over ptr init" { |
| 773 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = .*\r\nNew value = 3 .*\r\n.*$gdb_prompt $" { |
| 774 | # We can not test for <unknown> here because NULL may be readable. |
| 775 | # This test does rely on *NULL != 3. |
| 776 | pass "next over ptr init" |
| 777 | } |
| 778 | } |
| 779 | gdb_test_multiple "next" "next over buffer set" { |
| 780 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = 3 .*\r\nNew value = 7 .*\r\n.*$gdb_prompt $" { |
| 781 | pass "next over buffer set" |
| 782 | } |
| 783 | } |
| 784 | gdb_test "delete \$global_ptr_breakpoint_number" "" |
| 785 | gdb_test "watch **global_ptr_ptr" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr" |
| 786 | gdb_test "set \$global_ptr_ptr_breakpoint_number = \$bpnum" "" |
| 787 | gdb_test "next" ".*global_ptr_ptr = &global_ptr.*" "global_ptr_ptr next" |
| 788 | gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = .*\r\nNew value = 7 .*" "next over global_ptr_ptr init" |
| 789 | gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = 7 .*\r\nNew value = 9 .*" "next over global_ptr_ptr buffer set" |
| 790 | gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = 9 .*\r\nNew value = 5 .*" "next over global_ptr_ptr pointer advance" |
| 791 | gdb_test_no_output "delete \$global_ptr_ptr_breakpoint_number" |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | proc test_no_hw_watchpoints {} { |
| 796 | global testfile |
| 797 | |
| 798 | clean_restart $testfile |
| 799 | |
| 800 | # Verify that a user can force GDB to use "slow" watchpoints. |
| 801 | # (This proves rather little on kernels that don't support |
| 802 | # fast watchpoints, but still...) |
| 803 | # |
| 804 | if ![runto_main] then { fail "watch tests suppressed" } |
| 805 | |
| 806 | gdb_test_no_output "set can-use-hw-watchpoints 0" "disable fast watches" |
| 807 | |
| 808 | gdb_test "show can-use-hw-watchpoints" \ |
| 809 | "Debugger's willingness to use watchpoint hardware is 0." \ |
| 810 | "show disable fast watches" |
| 811 | |
| 812 | gdb_test "watch ival3 if count > 1" \ |
| 813 | "Watchpoint \[0-9\]*: ival3.*" \ |
| 814 | "set slow conditional watch" |
| 815 | |
| 816 | gdb_test "continue" \ |
| 817 | "Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*" \ |
| 818 | "trigger slow conditional watch" |
| 819 | |
| 820 | gdb_test_no_output "delete \$bpnum" "delete watch ival3" |
| 821 | |
| 822 | gdb_test "watch ival3 if count > 1 thread 1 " \ |
| 823 | "Watchpoint \[0-9\]*: ival3.*" \ |
| 824 | "set slow condition watch w/thread" |
| 825 | |
| 826 | gdb_test_no_output "delete \$bpnum" "delete watch w/condition and thread" |
| 827 | |
| 828 | # We've explicitly disabled hardware watches. Verify that GDB |
| 829 | # refrains from using them. |
| 830 | # |
| 831 | gdb_test "rwatch ival3" \ |
| 832 | "Can't set read/access watchpoint when hardware watchpoints are disabled." \ |
| 833 | "rwatch disallowed when can-set-hw-watchpoints cleared" |
| 834 | gdb_test "awatch ival3" \ |
| 835 | "Can't set read/access watchpoint when hardware watchpoints are disabled." \ |
| 836 | "awatch disallowed when can-set-hw-watchpoints cleared" |
| 837 | |
| 838 | |
| 839 | # Re-enable hardware watchpoints if necessary. |
| 840 | if ![target_info exists gdb,no_hardware_watchpoints] { |
| 841 | gdb_test_no_output "set can-use-hw-watchpoints 1" "" |
| 842 | } |
| 843 | } |
| 844 | |
| 845 | proc test_watchpoint_in_big_blob {} { |
| 846 | global gdb_prompt |
| 847 | |
| 848 | # On native targets where we do hardware resource accounting, this |
| 849 | # may end up as a software watchpoint. |
| 850 | set ok 0 |
| 851 | set test "watch buf" |
| 852 | gdb_test_multiple "watch buf" $test { |
| 853 | -re "Hardware watchpoint \[0-9\]+: buf.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { |
| 854 | # This may happen with remote targets (where we don't do |
| 855 | # resource accounting) that support hardware watchpoints, |
| 856 | # when breakpoint always-inserted is on. The watchpoint |
| 857 | # was too large, for example. If GDB is ever adjusted to |
| 858 | # downgrade the watchpoint automatically in this case, |
| 859 | # this match should be removed. Note the breakpoint has |
| 860 | # been created, and is in the list, so it needs deleting. |
| 861 | pass $test |
| 862 | } |
| 863 | -re ".*atchpoint \[0-9\]+: buf.*$gdb_prompt $" { |
| 864 | pass $test |
| 865 | set ok 1 |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | if { $ok } { |
| 870 | set test "watchpoint on buf hit" |
| 871 | gdb_test_multiple "cont" $test { |
| 872 | -re "Continuing.*atchpoint \[0-9\]+: buf\r\n\r\nOld value = .*testte\".*$gdb_prompt $" { |
| 873 | pass $test |
| 874 | } |
| 875 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { |
| 876 | # This may happen with remote targets that support |
| 877 | # hardware watchpoints. We only find out the |
| 878 | # watchpoint was too large, for example, at insert |
| 879 | # time. If GDB is ever adjusted to downgrade the |
| 880 | # watchpoint automatically in this case, this match |
| 881 | # should be removed. |
| 882 | pass $test |
| 883 | } |
| 884 | } |
| 885 | } |
| 886 | |
| 887 | gdb_test_no_output "delete \$bpnum" "delete watch buf" |
| 888 | } |
| 889 | |
| 890 | proc test_watch_register_location {} { |
| 891 | global no_hw |
| 892 | |
| 893 | if {!$no_hw && ![target_info exists gdb,no_hardware_watchpoints]} { |
| 894 | # Non-memory read/access watchpoints are not supported, they would |
| 895 | # require software read/access watchpoint support (which is not |
| 896 | # currently available). |
| 897 | gdb_test "rwatch \$pc" \ |
| 898 | "Expression cannot be implemented with read/access watchpoint..*" \ |
| 899 | "rwatch disallowed for register based expression" |
| 900 | gdb_test "awatch \$pc" \ |
| 901 | "Expression cannot be implemented with read/access watchpoint..*" \ |
| 902 | "awatch disallowed for register based expression" |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | # Start with a fresh gdb. |
| 907 | |
| 908 | set prev_timeout $timeout |
| 909 | set timeout 600 |
| 910 | verbose "Timeout now 600 sec.\n" |
| 911 | |
| 912 | test_no_hw_watchpoints |
| 913 | |
| 914 | proc do_tests {} { |
| 915 | global testfile |
| 916 | global no_hw |
| 917 | |
| 918 | clean_restart $testfile |
| 919 | |
| 920 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 921 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 922 | } |
| 923 | |
| 924 | if [initialize] then { |
| 925 | |
| 926 | test_simple_watchpoint |
| 927 | |
| 928 | test_disabling_watchpoints |
| 929 | |
| 930 | if ![target_info exists gdb,cannot_call_functions] { |
| 931 | test_stepping |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | # Tests below don't rely on the markers and watchpoint set by |
| 936 | # `initialize' anymore. |
| 937 | clean_restart $testfile |
| 938 | |
| 939 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 940 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 941 | } |
| 942 | |
| 943 | # Only enabled for some targets merely because it has not been tested |
| 944 | # elsewhere. |
| 945 | # On sparc-sun-sunos4.1.3, GDB was running all the way to the marker4 |
| 946 | # breakpoint before stopping for the watchpoint. I don't know why. |
| 947 | if {[istarget "hppa*-*-*"]} then { |
| 948 | test_watchpoint_triggered_in_syscall |
| 949 | } |
| 950 | |
| 951 | test_complex_watchpoint |
| 952 | |
| 953 | test_inaccessible_watchpoint |
| 954 | |
| 955 | test_watchpoint_and_breakpoint |
| 956 | |
| 957 | test_watchpoint_in_big_blob |
| 958 | |
| 959 | test_constant_watchpoint |
| 960 | |
| 961 | test_disable_enable_software_watchpoint |
| 962 | |
| 963 | test_watch_location |
| 964 | |
| 965 | test_wide_location_1 |
| 966 | test_wide_location_2 |
| 967 | |
| 968 | test_watch_register_location |
| 969 | } |
| 970 | |
| 971 | # On targets that can do hardware watchpoints, run the tests twice: |
| 972 | # once with hardware watchpoints enabled; another with hardware |
| 973 | # watchpoints force-disabled. |
| 974 | |
| 975 | do_tests |
| 976 | if ![target_info exists gdb,no_hardware_watchpoints] { |
| 977 | with_test_prefix "no-hw" { |
| 978 | set no_hw 1 |
| 979 | do_tests |
| 980 | } |
| 981 | } |
| 982 | |
| 983 | # Restore old timeout |
| 984 | set timeout $prev_timeout |
| 985 | verbose "Timeout now $timeout sec.\n" |