projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| ecd75fc8 | 1 | # Copyright 1992-2014 Free Software Foundation, Inc. |
| c906108c SS |
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 | |
| e22f8b7c | 5 | # the Free Software Foundation; either version 3 of the License, or |
| c906108c | 6 | # (at your option) any later version. |
| e22f8b7c | 7 | # |
| c906108c SS |
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. | |
| e22f8b7c | 12 | # |
| c906108c | 13 | # You should have received a copy of the GNU General Public License |
| e22f8b7c | 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| c906108c | 15 | |
| c906108c SS |
16 | # This file was written by Fred Fish. (fnf@cygnus.com) |
| 17 | ||
| c906108c | 18 | |
| 62cef515 | 19 | standard_testfile |
| c906108c | 20 | |
| 4c93b1db | 21 | if [get_compiler_info] { |
| c906108c SS |
22 | return -1 |
| 23 | } | |
| 24 | ||
| c906108c | 25 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| b60f0898 JB |
26 | untested watchpoint.exp |
| 27 | return -1 | |
| c906108c SS |
28 | } |
| 29 | ||
| 4b3c9f41 PA |
30 | # True if we're forcing no hardware watchpoints. |
| 31 | set no_hw 0 | |
| 32 | ||
| c906108c SS |
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" ] { | |
| ae59b1da | 56 | return 0 |
| c906108c SS |
57 | } |
| 58 | ||
| 59 | ||
| 60 | if [gdb_test "break marker2" "Breakpoint 2 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker2" ] { | |
| ae59b1da | 61 | return 0 |
| c906108c SS |
62 | } |
| 63 | ||
| 64 | ||
| 65 | if [gdb_test "info break" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*" "info break in watchpoint.exp" ] { | |
| ae59b1da | 66 | return 0 |
| c906108c SS |
67 | } |
| 68 | ||
| 100aa3ae | 69 | gdb_test "watch ival3" ".*\[Ww\]atchpoint 3: ival3.*" "set watchpoint on ival3" |
| c906108c | 70 | |
| d77f58be | 71 | if [gdb_test "info watch" "3\[ \]*.*watchpoint.*ival3" "watchpoint found in watchpoint/breakpoint table" ] { |
| ae59b1da | 72 | return 0 |
| c906108c SS |
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" ] { | |
| ae59b1da | 81 | return 0 |
| c906108c SS |
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 | ||
| 100aa3ae | 99 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] { |
| ae59b1da | 100 | return 0 |
| c906108c SS |
101 | } |
| 102 | ||
| c906108c SS |
103 | # Run until we get to the first marker function. |
| 104 | ||
| 105 | gdb_run_cmd | |
| 106 | set timeout 600 | |
| 4033a6bf PA |
107 | set test "run to marker1 in test_simple_watchpoint" |
| 108 | set retcode [gdb_test_multiple "" $test { | |
| c906108c | 109 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 4033a6bf | 110 | pass $test |
| c906108c | 111 | } |
| 4033a6bf PA |
112 | }] |
| 113 | ||
| 114 | if { $retcode != 0 } { | |
| 115 | return | |
| c906108c SS |
116 | } |
| 117 | ||
| 118 | # After reaching the marker function, enable the watchpoint. | |
| 119 | ||
| 120 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "enable watchpoint" ] { | |
| ae59b1da | 121 | return |
| c906108c SS |
122 | } |
| 123 | ||
| 124 | ||
| 125 | gdb_test "break func1" "Breakpoint.*at.*" | |
| 27d3a1a2 | 126 | gdb_test_no_output "set \$func1_breakpoint_number = \$bpnum" |
| c906108c SS |
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 | ||
| 4033a6bf PA |
133 | set test "watchpoint hit, first time" |
| 134 | gdb_test_multiple "cont" $test { | |
| c906108c | 135 | -re "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*$gdb_prompt $" { |
| 4033a6bf | 136 | pass $test |
| c906108c SS |
137 | } |
| 138 | -re "Continuing.*Breakpoint.*func1.*$gdb_prompt $" { | |
| 139 | setup_xfail "m68*-*-*" 2597 | |
| 140 | fail "thought it hit breakpoint at func1 twice" | |
| 27d3a1a2 | 141 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| c906108c SS |
142 | gdb_test "continue" "\ |
| 143 | Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count;" \ | |
| 4033a6bf | 144 | $test |
| c906108c | 145 | } |
| c906108c SS |
146 | } |
| 147 | ||
| c2d11a7d JM |
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 | ||
| 27d3a1a2 | 151 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| c906108c SS |
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 | ||
| c2d11a7d JM |
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 | ||
| c906108c SS |
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" | |
| c2d11a7d JM |
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" | |
| c906108c SS |
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 | ||
| c2d11a7d JM |
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 | ||
| c906108c SS |
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 | ||
| c2d11a7d JM |
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 | ||
| c906108c SS |
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" ] { | |
| ae59b1da | 188 | return |
| c906108c SS |
189 | } |
| 190 | ||
| 191 | ||
| 192 | # Run until process exits. | |
| 193 | ||
| 194 | if [target_info exists gdb,noresults] { return } | |
| 195 | ||
| 7a292a7a | 196 | gdb_continue_to_end "continue to exit in test_simple_watchpoint" |
| c906108c SS |
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 | ||
| e4d63ba2 | 208 | gdb_test "info watch" "\[0-9]+\[ \]*.*watchpoint.*ival3.*" "watchpoints found in watchpoint/breakpoint table" |
| 085dd6e6 | 209 | |
| c906108c SS |
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" ] { | |
| ae59b1da | 213 | return 0 |
| c906108c SS |
214 | } |
| 215 | ||
| 216 | ||
| 217 | # Run until we get to the first marker function. | |
| 218 | ||
| 219 | gdb_run_cmd | |
| 220 | set timeout 600 | |
| 4033a6bf PA |
221 | set test "run to marker1 in test_disabling_watchpoints" |
| 222 | set retcode [gdb_test_multiple "" $test { | |
| c906108c | 223 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 4033a6bf | 224 | pass $test |
| c906108c | 225 | } |
| 4033a6bf PA |
226 | }] |
| 227 | ||
| 228 | if { $retcode != 0 } { | |
| 229 | return | |
| c906108c SS |
230 | } |
| 231 | ||
| 232 | # After reaching the marker function, enable the watchpoint. | |
| 233 | ||
| 234 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "watchpoint enabled" ] { | |
| ae59b1da | 235 | return |
| c906108c SS |
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" ] { | |
| ae59b1da | 250 | return 0 |
| c906108c SS |
251 | } |
| 252 | ||
| 253 | ||
| 254 | # Check watchpoint list, looking for the entry that confirms the | |
| 255 | # watchpoint is disabled. | |
| 085dd6e6 | 256 | gdb_test "info watchpoints" "\[0-9]+\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table" |
| c906108c SS |
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 | ||
| 7a292a7a | 265 | gdb_continue_to_end "continue to exit in test_disabling_watchpoints" |
| c906108c SS |
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 | ||
| 085dd6e6 | 279 | gdb_test "p func1 ()" "= 73" \ |
| 4b2b3b3e | 280 | "calling function with watchpoint enabled" |
| c906108c SS |
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 { | |
| 2df3850c JM |
292 | -re "Run.*exit from.*marker1.* at" { |
| 293 | pass "finish from marker1" | |
| 294 | } | |
| dfcd3bfb | 295 | default { fail "finish from marker1 (timeout)" ; return } |
| c906108c SS |
296 | } |
| 297 | ||
| 298 | gdb_expect { | |
| 299 | -re "marker1 \\(\\);.*$gdb_prompt $" { | |
| 300 | send_gdb "step\n" | |
| 301 | exp_continue | |
| 302 | } | |
| 303 | -re "func1 \\(\\);.*$gdb_prompt $" { | |
| dfcd3bfb | 304 | pass "back at main from marker1" |
| c906108c SS |
305 | } |
| 306 | -re ".*$gdb_prompt $" { | |
| dfcd3bfb | 307 | fail "back at main from marker1" |
| c906108c | 308 | } |
| dfcd3bfb | 309 | default { fail "back at main from marker1 (timeout)" ; return } |
| c906108c SS |
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" | |
| 4033a6bf PA |
325 | set test "until out of loop" |
| 326 | gdb_test_multiple "until" $test { | |
| c906108c | 327 | -re "(for \\(count = 0|\}).*$gdb_prompt $" { |
| 4033a6bf | 328 | gdb_test "until" "ival1 = count; /. Outside loop ./" $test |
| c906108c SS |
329 | } |
| 330 | -re "ival1 = count; /. Outside loop ./.*$gdb_prompt $" { | |
| 4033a6bf | 331 | pass $test |
| c906108c | 332 | } |
| c906108c SS |
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 | ||
| 958a4e4c MS |
343 | # These tests won't work without printf support. |
| 344 | if [gdb_skip_stdio_test "watchpoints triggered in syscall"] { | |
| 4ec70201 | 345 | return |
| c906108c SS |
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 | ||
| 27d3a1a2 | 359 | gdb_test_no_output "set doread = 1" |
| c906108c | 360 | |
| 4033a6bf | 361 | # If we send gdb "123\n" before gdb has switched the tty, then it goes |
| c906108c SS |
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. | |
| 02746bbc | 364 | |
| 4ec70201 | 365 | send_gdb "continue\n" |
| c906108c SS |
366 | gdb_expect { |
| 367 | -re "Continuing\\.\r\ntype stuff for buf now:" { | |
| 368 | pass "continue to read" | |
| 369 | } | |
| 370 | default { | |
| 4ec70201 | 371 | fail "continue to read" |
| ae59b1da | 372 | return |
| c906108c SS |
373 | } |
| 374 | } | |
| 375 | ||
| 4033a6bf PA |
376 | set test "sent 123" |
| 377 | gdb_test_multiple "123" $test { | |
| c906108c SS |
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 $x+1] ; exp_continue } | |
| 4033a6bf | 382 | -re ".*$gdb_prompt $" { pass $test } |
| c906108c SS |
383 | } |
| 384 | ||
| 385 | # Examine the values in buf to see how many watchpoints we | |
| 386 | # should have printed. | |
| 4033a6bf PA |
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 } | |
| c906108c | 391 | } |
| 4033a6bf PA |
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 } | |
| c906108c | 396 | } |
| 4033a6bf PA |
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 } | |
| c906108c | 401 | } |
| 4033a6bf PA |
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 } | |
| c906108c SS |
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 | |
| 27d3a1a2 | 417 | gdb_test_no_output "disable" "disable in test_watchpoint_triggered_in_syscall" |
| c906108c SS |
418 | |
| 419 | if [target_info exists gdb,noresults] { return } | |
| 420 | ||
| 7a292a7a | 421 | gdb_continue_to_end "continue to exit in test_watchpoint_triggered_in_syscall" |
| c906108c SS |
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 | ||
| 085dd6e6 JM |
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 | # | |
| 27d3a1a2 | 447 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| 085dd6e6 JM |
448 | gdb_test "break marker6" ".*Breakpoint.*" |
| 449 | gdb_test "cont" "Continuing.*Breakpoint.*marker6 \\(\\).*" \ | |
| 450 | "continue to marker6" | |
| bdddb4de UW |
451 | gdb_breakpoint [gdb_get_line_number "func2 breakpoint here"] |
| 452 | gdb_continue_to_breakpoint "func2 breakpoint here" | |
| 085dd6e6 JM |
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" | |
| e2de5390 JK |
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 compiler_info 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 | verbose -log "compiler_info: $compiler_info" | |
| 473 | if {$no_hw && ([test_compiler_info {gcc-[0-3]-*}] | |
| 474 | || [test_compiler_info {gcc-4-[0-4]-*}])} { | |
| 475 | xfail "$test (old GCC has broken watchpoints in epilogues)" | |
| 476 | return | |
| 477 | } | |
| 478 | fail $test | |
| 479 | } | |
| 480 | } | |
| 085dd6e6 | 481 | |
| bdddb4de | 482 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 085dd6e6 JM |
483 | # We should be in "func2" again now. Test a watch of an |
| 484 | # expression which includes both a stack-based local and | |
| 485 | # something whose scope is larger than this invocation | |
| 486 | # of "func2". This should also auto-delete. | |
| 487 | # | |
| 488 | gdb_test "watch local_a + ival5" ".*\[Ww\]atchpoint \[0-9\]*: local_a . ival5" \ | |
| 489 | "set partially local watch" | |
| 490 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ | |
| 491 | "trigger1 partially local watch" | |
| 492 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ | |
| 493 | "trigger2 partially local watch" | |
| 494 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 495 | "self-delete partially local watch" | |
| 496 | ||
| 497 | # We should be in "func2" again now. Test a watch of a | |
| 498 | # static (non-stack-based) local. Since this has scope | |
| 499 | # across any invocations of "func2", it should not auto- | |
| 500 | # delete. | |
| 501 | # | |
| bdddb4de | 502 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 085dd6e6 JM |
503 | gdb_test "watch static_b" ".*\[Ww\]atchpoint \[0-9\]*: static_b" \ |
| 504 | "set static local watch" | |
| 505 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: static_b.*" \ | |
| 506 | "trigger static local watch" | |
| 507 | gdb_test "cont" "Continuing.*marker6 \\(\\).*" \ | |
| 508 | "continue after trigger static local watch" | |
| 509 | gdb_test "info break" ".*watchpoint.*static_b.*" \ | |
| 510 | "static local watch did not self-delete" | |
| 511 | ||
| 512 | # We should be in "recurser" now. Test a watch of a stack- | |
| 513 | # based local. Symbols mentioned in a watchpoint are bound | |
| 514 | # at watchpoint-creation. Thus, a watch of a stack-based | |
| 515 | # local to a recursing function should be bound only to that | |
| 516 | # one invocation, and should not trigger for other invocations. | |
| 517 | # | |
| 18ac113b | 518 | gdb_test "tbreak recurser" ".*breakpoint.*" |
| 085dd6e6 | 519 | gdb_test "cont" "Continuing.*recurser.*" |
| 97ddaa9b | 520 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" |
| 085dd6e6 JM |
521 | gdb_test "watch local_x" ".*\[Ww\]atchpoint \[0-9\]*: local_x" \ |
| 522 | "set local watch in recursive call" | |
| 523 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_x.*New value = 2.*" \ | |
| 524 | "trigger local watch in recursive call" | |
| 525 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 526 | "self-delete local watch in recursive call" | |
| 527 | ||
| 97ddaa9b PH |
528 | # Repeat the preceding test, but this time use "recurser::local_x" as |
| 529 | # the variable to track. | |
| 530 | gdb_test "cont" "Continuing.*marker6.*" | |
| 531 | gdb_test "tbreak recurser" ".*breakpoint.*" | |
| 532 | gdb_test "cont" "Continuing.*recurser.*" | |
| 533 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" | |
| 534 | gdb_test "watch recurser::local_x" ".*\[Ww\]atchpoint \[0-9\]*: recurser::local_x" \ | |
| 535 | "set local watch in recursive call with explicit scope" | |
| 536 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: recurser::local_x.*New value = 2.*" \ | |
| 537 | "trigger local watch with explicit scope in recursive call" | |
| 538 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 539 | "self-delete local watch with explicit scope in recursive call (2)" | |
| 540 | ||
| c906108c | 541 | # Disable everything so we can finish the program at full speed |
| 27d3a1a2 | 542 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| c906108c SS |
543 | |
| 544 | if [target_info exists gdb,noresults] { return } | |
| 545 | ||
| 085dd6e6 | 546 | gdb_continue_to_end "continue to exit in test_complex_watchpoint" |
| c906108c SS |
547 | } |
| 548 | } | |
| 549 | ||
| 293e9a31 DC |
550 | proc test_watchpoint_and_breakpoint {} { |
| 551 | global gdb_prompt | |
| 552 | ||
| 31e77af2 | 553 | # This is a test for PR breakpoints/7143, which involves setting a |
| 293e9a31 DC |
554 | # watchpoint right after you've reached a breakpoint. |
| 555 | ||
| 556 | if [runto func3] then { | |
| 557 | gdb_breakpoint [gdb_get_line_number "second x assignment"] | |
| 558 | gdb_continue_to_breakpoint "second x assignment" | |
| 559 | gdb_test "watch x" ".*atchpoint \[0-9\]+: x" | |
| 31e77af2 PA |
560 | gdb_test "next" \ |
| 561 | ".*atchpoint \[0-9\]+: x\r\n\r\nOld value = 0\r\nNew value = 1\r\n.*" \ | |
| 562 | "next after watch x" | |
| 06a64a0b TT |
563 | |
| 564 | gdb_test_no_output "delete \$bpnum" "delete watch x" | |
| 293e9a31 DC |
565 | } |
| 566 | } | |
| 65d79d4b SDJ |
567 | |
| 568 | proc test_constant_watchpoint {} { | |
| 569 | gdb_test "watch 5" "Cannot watch constant value `5'." "number is constant" | |
| aeaa2474 SA |
570 | gdb_test "watch (int *)5" "Cannot watch constant value `\\(int \\*\\)5'." \ |
| 571 | "number with cast is constant" | |
| 65d79d4b SDJ |
572 | gdb_test "watch marker1" "Cannot watch constant value `marker1'." \ |
| 573 | "marker1 is constant" | |
| 574 | gdb_test "watch count + 6" ".*atchpoint \[0-9\]+: count \\+ 6" | |
| 575 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `count + 6'" | |
| 576 | gdb_test "watch 7 + count" ".*atchpoint \[0-9\]+: 7 \\+ count" | |
| 577 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `7 + count'" | |
| 578 | } | |
| 579 | ||
| efa80663 PA |
580 | proc test_disable_enable_software_watchpoint {} { |
| 581 | # This is regression test for a bug that caused `enable' to fail | |
| 582 | # for software watchpoints. | |
| 583 | ||
| 584 | # Watch something not memory to force a software watchpoint. | |
| 585 | gdb_test {watch $pc} ".*atchpoint \[0-9\]+: .pc" | |
| 586 | ||
| 587 | gdb_test_no_output "disable \$bpnum" "disable watchpoint `\$pc'" | |
| 588 | gdb_test_no_output "enable \$bpnum" "reenable watchpoint `\$pc'" | |
| 589 | ||
| 590 | gdb_test "info watchpoint \$bpnum" \ | |
| 591 | ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+.pc.*" \ | |
| 592 | "watchpoint `\$pc' is enabled" | |
| 593 | ||
| 594 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `\$pc'" | |
| 595 | } | |
| 596 | ||
| 06a64a0b TT |
597 | proc test_watch_location {} { |
| 598 | gdb_breakpoint [gdb_get_line_number "func5 breakpoint here"] | |
| 599 | gdb_continue_to_breakpoint "func5 breakpoint here" | |
| 600 | ||
| 3a1115a0 TT |
601 | gdb_test "watch -location nullptr->p->x" \ |
| 602 | "Cannot access memory at address 0x0" | |
| 603 | ||
| 06a64a0b TT |
604 | gdb_test "watch -location *x" "atchpoint .*: .*" "watch -location .x" |
| 605 | ||
| 606 | gdb_test "continue" \ | |
| 607 | "Continuing.*\[Ww\]atchpoint .*: .*New value = 27.*" \ | |
| 608 | "continue with watch -location" | |
| 609 | ||
| 610 | gdb_test_no_output "delete \$bpnum" "delete watch -location" | |
| 611 | } | |
| 612 | ||
| fabde485 PA |
613 | # Tests watching areas larger than a word. |
| 614 | ||
| 615 | proc test_wide_location_1 {} { | |
| 4b3c9f41 | 616 | global no_hw |
| b62e2b27 | 617 | global gdb_prompt |
| 4b3c9f41 | 618 | |
| fabde485 PA |
619 | # This test watches two words on most 32-bit ABIs, and one word on |
| 620 | # most 64-bit ABIs. | |
| 621 | ||
| 622 | # Platforms where the target can't watch such a large region | |
| 623 | # should clear hw_expected below. | |
| b62e2b27 | 624 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| bdddb4de UW |
625 | || [istarget arm*-*-*] |
| 626 | || ([istarget powerpc*-*-*] && ![is_lp64_target])} { | |
| fabde485 PA |
627 | set hw_expected 0 |
| 628 | } else { | |
| 629 | set hw_expected 1 | |
| 630 | } | |
| 631 | ||
| 632 | gdb_breakpoint [gdb_get_line_number "func6 breakpoint here"] | |
| 633 | gdb_continue_to_breakpoint "func6 breakpoint here" | |
| 634 | ||
| 635 | if { $hw_expected } { | |
| 636 | gdb_test "watch foo2" "Hardware watchpoint .*: .*" "watch foo2" | |
| 637 | gdb_test "continue" \ | |
| 638 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*" \ | |
| 639 | "continue with watch foo2" | |
| 640 | } else { | |
| 641 | gdb_test "watch foo2" "atchpoint .*: .*" "watch foo2" | |
| b62e2b27 UW |
642 | set test "continue with watch foo2" |
| 643 | gdb_test_multiple "cont" $test { | |
| 644 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*$gdb_prompt $" { | |
| 645 | pass $test | |
| 646 | } | |
| 647 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 648 | # This may happen with remote targets that support | |
| 649 | # hardware watchpoints. We only find out the | |
| 650 | # watchpoint was too large, for example, at insert | |
| 651 | # time. If GDB is ever adjusted to downgrade the | |
| 652 | # watchpoint automatically in this case, this match | |
| 653 | # should be removed. | |
| 654 | pass $test | |
| 655 | } | |
| 656 | } | |
| fabde485 PA |
657 | } |
| 658 | ||
| 659 | gdb_test_no_output "delete \$bpnum" "delete watch foo2" | |
| 660 | } | |
| 661 | ||
| 662 | proc test_wide_location_2 {} { | |
| 4b3c9f41 | 663 | global no_hw |
| b62e2b27 | 664 | global gdb_prompt |
| 4b3c9f41 | 665 | |
| fabde485 PA |
666 | # This test watches four words on most 32-bit ABIs, and two words |
| 667 | # on 64-bit ABIs. | |
| 668 | ||
| 669 | # Platforms where the target can't watch such a large region | |
| 670 | # should clear hw_expected below. | |
| b62e2b27 | 671 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| bdddb4de UW |
672 | || [istarget arm*-*-*] |
| 673 | || [istarget powerpc*-*-*]} { | |
| fabde485 PA |
674 | set hw_expected 0 |
| 675 | } else { | |
| 676 | set hw_expected 1 | |
| 677 | } | |
| 678 | ||
| 679 | gdb_breakpoint [gdb_get_line_number "func7 breakpoint here"] | |
| 680 | gdb_continue_to_breakpoint "func7 breakpoint here" | |
| 681 | ||
| 682 | if { $hw_expected } { | |
| 683 | gdb_test "watch foo4" "Hardware watchpoint .*: .*" "watch foo4" | |
| 684 | gdb_test "continue" \ | |
| 685 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*" \ | |
| 686 | "continue with watch foo4" | |
| 687 | } else { | |
| 688 | gdb_test "watch foo4" "atchpoint .*: .*" "watch foo4" | |
| b62e2b27 UW |
689 | set test "continue with watch foo4" |
| 690 | gdb_test_multiple "cont" $test { | |
| 691 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*$gdb_prompt $" { | |
| 692 | pass $test | |
| 693 | } | |
| 694 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 695 | # This may happen with remote targets that support | |
| 696 | # hardware watchpoints. We only find out the | |
| 697 | # watchpoint was too large, for example, at insert | |
| 698 | # time. If GDB is ever adjusted to downgrade the | |
| 699 | # watchpoint automatically in this case, this match | |
| 700 | # should be removed. | |
| 701 | pass $test | |
| 702 | } | |
| 703 | } | |
| fabde485 PA |
704 | } |
| 705 | ||
| 706 | gdb_test_no_output "delete \$bpnum" "delete watch foo4" | |
| 707 | } | |
| 708 | ||
| fa4727a6 DJ |
709 | proc test_inaccessible_watchpoint {} { |
| 710 | global gdb_prompt | |
| 711 | ||
| 712 | # This is a test for watchpoints on currently inaccessible (but later | |
| 713 | # valid) memory. | |
| 714 | ||
| 715 | if [runto func4] then { | |
| ccc57cf9 PA |
716 | # Make sure we only allow memory access errors. |
| 717 | set msg "watchpoint refused to insert on nonexistent struct member" | |
| 718 | gdb_test_multiple "watch struct1.nosuchmember" $msg { | |
| 719 | -re ".*atchpoint \[0-9\]+: struct1.nosuchmember.*$gdb_prompt $" { | |
| 720 | # PR breakpoints/9681 | |
| 721 | fail $msg | |
| 722 | } | |
| 723 | -re "There is no member named nosuchmember\\..*$gdb_prompt $" { | |
| 724 | pass $msg | |
| 725 | } | |
| 726 | } | |
| 727 | ||
| 8464be76 DJ |
728 | # See whether a watchpoint on a normal variable is a hardware |
| 729 | # watchpoint or not. The watchpoints on NULL should be hardware | |
| 730 | # iff this one is. | |
| 731 | set watchpoint_msg "Watchpoint" | |
| 732 | gdb_test_multiple "watch global_ptr" "watch global_ptr" { | |
| 733 | -re "Watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { | |
| 734 | pass "watch global_ptr" | |
| 735 | } | |
| 736 | -re "Hardware watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { | |
| 737 | set watchpoint_msg "Hardware watchpoint" | |
| 738 | pass "watch global_ptr" | |
| 739 | } | |
| 740 | } | |
| 741 | delete_breakpoints | |
| 742 | ||
| 743 | # Make sure that we can watch a constant address, and correctly | |
| 744 | # use a HW watchpoint if supported. | |
| 745 | gdb_test "watch *(int *) 0" \ | |
| 746 | "$watchpoint_msg \[0-9\]+: \\*\\(int \\*\\) 0" | |
| 747 | delete_breakpoints | |
| 748 | ||
| a1442452 PA |
749 | # The same, but using -location through an indirection. |
| 750 | gdb_test "watch -location *global_ptr" \ | |
| 4a4106ca | 751 | "$watchpoint_msg \[0-9\]+: \-location \\*global_ptr" |
| a1442452 PA |
752 | delete_breakpoints |
| 753 | ||
| b800ec70 UW |
754 | # This step requires two HW watchpoints. Since some platforms only |
| 755 | # have a single one, accept either SW or HW watchpoint in this case. | |
| 756 | if {[skip_hw_watchpoint_multi_tests]} { | |
| 757 | set watchpoint_msg "(Watchpoint|Hardware watchpoint)" | |
| efd11a33 JK |
758 | } |
| 759 | ||
| 760 | gdb_test "watch *global_ptr" "$watchpoint_msg \[0-9\]+: \\\*global_ptr" | |
| 65d79d4b SDJ |
761 | gdb_test "set \$global_ptr_breakpoint_number = \$bpnum" "" |
| 762 | gdb_test "next" ".*global_ptr = buf.*" "global_ptr next" | |
| fa4727a6 DJ |
763 | gdb_test_multiple "next" "next over ptr init" { |
| 764 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = .*\r\nNew value = 3 .*\r\n.*$gdb_prompt $" { | |
| 765 | # We can not test for <unknown> here because NULL may be readable. | |
| 766 | # This test does rely on *NULL != 3. | |
| 767 | pass "next over ptr init" | |
| 768 | } | |
| 769 | } | |
| 770 | gdb_test_multiple "next" "next over buffer set" { | |
| 771 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = 3 .*\r\nNew value = 7 .*\r\n.*$gdb_prompt $" { | |
| 772 | pass "next over buffer set" | |
| 773 | } | |
| 774 | } | |
| 65d79d4b SDJ |
775 | gdb_test "delete \$global_ptr_breakpoint_number" "" |
| 776 | gdb_test "watch **global_ptr_ptr" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr" | |
| 777 | gdb_test "set \$global_ptr_ptr_breakpoint_number = \$bpnum" "" | |
| c79a8e11 | 778 | gdb_test "next" ".*global_ptr_ptr = &global_ptr.*" "global_ptr_ptr next" |
| 65d79d4b SDJ |
779 | gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = .*\r\nNew value = 7 .*" "next over global_ptr_ptr init" |
| 780 | 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" | |
| 781 | 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" | |
| 782 | gdb_test_no_output "delete \$global_ptr_ptr_breakpoint_number" | |
| fa4727a6 DJ |
783 | } |
| 784 | } | |
| a13491c8 PA |
785 | |
| 786 | proc test_no_hw_watchpoints {} { | |
| 4b3c9f41 PA |
787 | global testfile |
| 788 | ||
| 789 | clean_restart $testfile | |
| a13491c8 PA |
790 | |
| 791 | # Verify that a user can force GDB to use "slow" watchpoints. | |
| 792 | # (This proves rather little on kernels that don't support | |
| 793 | # fast watchpoints, but still...) | |
| 794 | # | |
| 795 | if ![runto_main] then { fail "watch tests suppressed" } | |
| 796 | ||
| 797 | gdb_test_no_output "set can-use-hw-watchpoints 0" "disable fast watches" | |
| 798 | ||
| 799 | gdb_test "show can-use-hw-watchpoints" \ | |
| 800 | "Debugger's willingness to use watchpoint hardware is 0." \ | |
| 801 | "show disable fast watches" | |
| 802 | ||
| 803 | gdb_test "watch ival3 if count > 1" \ | |
| 804 | "Watchpoint \[0-9\]*: ival3.*" \ | |
| 805 | "set slow conditional watch" | |
| 806 | ||
| 807 | gdb_test "continue" \ | |
| 808 | "Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*" \ | |
| 809 | "trigger slow conditional watch" | |
| 810 | ||
| 811 | gdb_test_no_output "delete \$bpnum" "delete watch ival3" | |
| 812 | ||
| cb8ea32b KS |
813 | gdb_test "watch ival3 if count > 1 thread 1 " \ |
| 814 | "Watchpoint \[0-9\]*: ival3.*" \ | |
| 815 | "set slow condition watch w/thread" | |
| 816 | ||
| 817 | gdb_test_no_output "delete \$bpnum" "delete watch w/condition and thread" | |
| 818 | ||
| a13491c8 PA |
819 | # We've explicitly disabled hardware watches. Verify that GDB |
| 820 | # refrains from using them. | |
| 821 | # | |
| 822 | gdb_test "rwatch ival3" \ | |
| 638aa5a1 | 823 | "Can't set read/access watchpoint when hardware watchpoints are disabled." \ |
| a13491c8 | 824 | "rwatch disallowed when can-set-hw-watchpoints cleared" |
| 638aa5a1 AB |
825 | gdb_test "awatch ival3" \ |
| 826 | "Can't set read/access watchpoint when hardware watchpoints are disabled." \ | |
| 827 | "awatch disallowed when can-set-hw-watchpoints cleared" | |
| 828 | ||
| a13491c8 PA |
829 | |
| 830 | # Re-enable hardware watchpoints if necessary. | |
| 831 | if ![target_info exists gdb,no_hardware_watchpoints] { | |
| 832 | gdb_test_no_output "set can-use-hw-watchpoints 1" "" | |
| 833 | } | |
| 834 | } | |
| 835 | ||
| 218d2fc6 TJB |
836 | proc test_watchpoint_in_big_blob {} { |
| 837 | global gdb_prompt | |
| 838 | ||
| 274f47f3 PA |
839 | # On native targets where we do hardware resource accounting, this |
| 840 | # may end up as a software watchpoint. | |
| 841 | set ok 0 | |
| 842 | set test "watch buf" | |
| 843 | gdb_test_multiple "watch buf" $test { | |
| 844 | -re "Hardware watchpoint \[0-9\]+: buf.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 845 | # This may happen with remote targets (where we don't do | |
| 846 | # resource accounting) that support hardware watchpoints, | |
| 847 | # when breakpoint always-inserted is on. The watchpoint | |
| 848 | # was too large, for example. If GDB is ever adjusted to | |
| 849 | # downgrade the watchpoint automatically in this case, | |
| 850 | # this match should be removed. Note the breakpoint has | |
| 851 | # been created, and is in the list, so it needs deleting. | |
| 852 | pass $test | |
| 853 | } | |
| 854 | -re ".*atchpoint \[0-9\]+: buf.*$gdb_prompt $" { | |
| 855 | pass $test | |
| 856 | set ok 1 | |
| 857 | } | |
| 858 | } | |
| 859 | ||
| 860 | if { $ok } { | |
| 861 | set test "watchpoint on buf hit" | |
| 862 | gdb_test_multiple "cont" $test { | |
| 863 | -re "Continuing.*atchpoint \[0-9\]+: buf\r\n\r\nOld value = .*testte\".*$gdb_prompt $" { | |
| 864 | pass $test | |
| 865 | } | |
| 866 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 867 | # This may happen with remote targets that support | |
| 868 | # hardware watchpoints. We only find out the | |
| 869 | # watchpoint was too large, for example, at insert | |
| 870 | # time. If GDB is ever adjusted to downgrade the | |
| 871 | # watchpoint automatically in this case, this match | |
| 872 | # should be removed. | |
| 873 | pass $test | |
| 874 | } | |
| 875 | } | |
| 876 | } | |
| 06a64a0b TT |
877 | |
| 878 | gdb_test_no_output "delete \$bpnum" "delete watch buf" | |
| 218d2fc6 TJB |
879 | } |
| 880 | ||
| 638aa5a1 AB |
881 | proc test_watch_register_location {} { |
| 882 | global no_hw | |
| 883 | ||
| 884 | if {!$no_hw && ![target_info exists gdb,no_hardware_watchpoints]} { | |
| 885 | # Non-memory read/access watchpoints are not supported, they would | |
| 886 | # require software read/access watchpoint support (which is not | |
| 887 | # currently available). | |
| 888 | gdb_test "rwatch \$pc" \ | |
| 889 | "Expression cannot be implemented with read/access watchpoint..*" \ | |
| 890 | "rwatch disallowed for register based expression" | |
| 891 | gdb_test "awatch \$pc" \ | |
| 892 | "Expression cannot be implemented with read/access watchpoint..*" \ | |
| 893 | "awatch disallowed for register based expression" | |
| 894 | } | |
| 895 | } | |
| 896 | ||
| c906108c SS |
897 | # Start with a fresh gdb. |
| 898 | ||
| 78b4f468 | 899 | set prev_timeout $timeout |
| c906108c SS |
900 | set timeout 600 |
| 901 | verbose "Timeout now 600 sec.\n" | |
| 902 | ||
| 4b3c9f41 | 903 | test_no_hw_watchpoints |
| c906108c | 904 | |
| 4b3c9f41 PA |
905 | proc do_tests {} { |
| 906 | global testfile | |
| 907 | global no_hw | |
| c906108c | 908 | |
| 4b3c9f41 | 909 | clean_restart $testfile |
| c906108c | 910 | |
| bdddb4de | 911 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 4b3c9f41 PA |
912 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 913 | } | |
| 914 | ||
| 915 | if [initialize] then { | |
| 916 | ||
| 917 | test_simple_watchpoint | |
| 918 | ||
| 919 | test_disabling_watchpoints | |
| 920 | ||
| 921 | if ![target_info exists gdb,cannot_call_functions] { | |
| 922 | test_stepping | |
| 923 | } | |
| c906108c SS |
924 | } |
| 925 | ||
| f3ad2025 PA |
926 | # Tests below don't rely on the markers and watchpoint set by |
| 927 | # `initialize' anymore. | |
| 928 | clean_restart $testfile | |
| 929 | ||
| bdddb4de | 930 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 4b3c9f41 PA |
931 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 932 | } | |
| 933 | ||
| c906108c SS |
934 | # Only enabled for some targets merely because it has not been tested |
| 935 | # elsewhere. | |
| 936 | # On sparc-sun-sunos4.1.3, GDB was running all the way to the marker4 | |
| 937 | # breakpoint before stopping for the watchpoint. I don't know why. | |
| 938 | if {[istarget "hppa*-*-*"]} then { | |
| 939 | test_watchpoint_triggered_in_syscall | |
| 940 | } | |
| 941 | ||
| dbd95daf | 942 | test_complex_watchpoint |
| 085dd6e6 | 943 | |
| 8464be76 DJ |
944 | test_inaccessible_watchpoint |
| 945 | ||
| 293e9a31 | 946 | test_watchpoint_and_breakpoint |
| 218d2fc6 TJB |
947 | |
| 948 | test_watchpoint_in_big_blob | |
| 65d79d4b | 949 | |
| 65d79d4b | 950 | test_constant_watchpoint |
| 06a64a0b | 951 | |
| efa80663 PA |
952 | test_disable_enable_software_watchpoint |
| 953 | ||
| 06a64a0b | 954 | test_watch_location |
| fabde485 | 955 | |
| fabde485 PA |
956 | test_wide_location_1 |
| 957 | test_wide_location_2 | |
| 638aa5a1 AB |
958 | |
| 959 | test_watch_register_location | |
| c906108c | 960 | } |
| 78b4f468 | 961 | |
| 4b3c9f41 PA |
962 | # On targets that can do hardware watchpoints, run the tests twice: |
| 963 | # once with hardware watchpoints enabled; another with hardware | |
| 964 | # watchpoints force-disabled. | |
| 965 | ||
| 966 | do_tests | |
| 967 | if ![target_info exists gdb,no_hardware_watchpoints] { | |
| 0f4d39d5 | 968 | with_test_prefix "no-hw" { |
| 6a5870ce PA |
969 | set no_hw 1 |
| 970 | do_tests | |
| 971 | } | |
| 4b3c9f41 PA |
972 | } |
| 973 | ||
| 78b4f468 RE |
974 | # Restore old timeout |
| 975 | set timeout $prev_timeout | |
| 976 | verbose "Timeout now $timeout sec.\n" |