projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 28e7fd62 | 1 | # Copyright 1992-2013 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 SS |
18 | |
| 19 | set testfile "watchpoint" | |
| 20 | set srcfile ${testfile}.c | |
| 21 | set binfile ${objdir}/${subdir}/${testfile} | |
| 22 | ||
| 4c93b1db | 23 | if [get_compiler_info] { |
| c906108c SS |
24 | return -1 |
| 25 | } | |
| 26 | ||
| c906108c | 27 | if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { |
| b60f0898 JB |
28 | untested watchpoint.exp |
| 29 | return -1 | |
| c906108c SS |
30 | } |
| 31 | ||
| 4b3c9f41 PA |
32 | # True if we're forcing no hardware watchpoints. |
| 33 | set no_hw 0 | |
| 34 | ||
| c906108c SS |
35 | # Prepare for watchpoint tests by setting up two breakpoints and one |
| 36 | # watchpoint. | |
| 37 | # | |
| 38 | # We use breakpoints at marker functions to get past all the startup code, | |
| 39 | # so we can get to the watchpoints in a reasonable amount of time from a | |
| 40 | # known starting point. | |
| 41 | # | |
| 42 | # For simplicity, so we always know how to reference specific breakpoints or | |
| 43 | # watchpoints by number, we expect a particular ordering and numbering of | |
| 44 | # each in the combined breakpoint/watchpoint table, as follows: | |
| 45 | # | |
| 46 | # Number What Where | |
| 47 | # 1 Breakpoint marker1() | |
| 48 | # 2 Breakpoint marker2() | |
| 49 | # 3 Watchpoint ival3 | |
| 50 | ||
| 51 | proc initialize {} { | |
| 52 | global gdb_prompt | |
| 53 | global hex | |
| 54 | global decimal | |
| 55 | global srcfile | |
| 56 | ||
| 57 | if [gdb_test "break marker1" "Breakpoint 1 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker1" ] { | |
| ae59b1da | 58 | return 0 |
| c906108c SS |
59 | } |
| 60 | ||
| 61 | ||
| 62 | if [gdb_test "break marker2" "Breakpoint 2 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker2" ] { | |
| ae59b1da | 63 | return 0 |
| c906108c SS |
64 | } |
| 65 | ||
| 66 | ||
| 67 | if [gdb_test "info break" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*" "info break in watchpoint.exp" ] { | |
| ae59b1da | 68 | return 0 |
| c906108c SS |
69 | } |
| 70 | ||
| 100aa3ae | 71 | gdb_test "watch ival3" ".*\[Ww\]atchpoint 3: ival3.*" "set watchpoint on ival3" |
| c906108c | 72 | |
| d77f58be | 73 | if [gdb_test "info watch" "3\[ \]*.*watchpoint.*ival3" "watchpoint found in watchpoint/breakpoint table" ] { |
| ae59b1da | 74 | return 0 |
| c906108c SS |
75 | } |
| 76 | ||
| 77 | ||
| 78 | # After installing the watchpoint, we disable it until we are ready | |
| 79 | # to use it. This allows the test program to run at full speed until | |
| 80 | # we get to the first marker function. | |
| 81 | ||
| 82 | if [gdb_test "disable 3" "disable 3\[\r\n\]+" "disable watchpoint" ] { | |
| ae59b1da | 83 | return 0 |
| c906108c SS |
84 | } |
| 85 | ||
| 86 | ||
| 87 | return 1 | |
| 88 | } | |
| 89 | ||
| 90 | # | |
| 91 | # Test simple watchpoint. | |
| 92 | # | |
| 93 | ||
| 94 | proc test_simple_watchpoint {} { | |
| 95 | global gdb_prompt | |
| 96 | global hex | |
| 97 | global decimal | |
| 98 | ||
| 99 | # Ensure that the watchpoint is disabled when we startup. | |
| 100 | ||
| 100aa3ae | 101 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] { |
| ae59b1da | 102 | return 0 |
| c906108c SS |
103 | } |
| 104 | ||
| c906108c SS |
105 | # Run until we get to the first marker function. |
| 106 | ||
| 107 | gdb_run_cmd | |
| 108 | set timeout 600 | |
| 4033a6bf PA |
109 | set test "run to marker1 in test_simple_watchpoint" |
| 110 | set retcode [gdb_test_multiple "" $test { | |
| c906108c | 111 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 4033a6bf | 112 | pass $test |
| c906108c | 113 | } |
| 4033a6bf PA |
114 | }] |
| 115 | ||
| 116 | if { $retcode != 0 } { | |
| 117 | return | |
| c906108c SS |
118 | } |
| 119 | ||
| 120 | # After reaching the marker function, enable the watchpoint. | |
| 121 | ||
| 122 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "enable watchpoint" ] { | |
| ae59b1da | 123 | return |
| c906108c SS |
124 | } |
| 125 | ||
| 126 | ||
| 127 | gdb_test "break func1" "Breakpoint.*at.*" | |
| 27d3a1a2 | 128 | gdb_test_no_output "set \$func1_breakpoint_number = \$bpnum" |
| c906108c SS |
129 | |
| 130 | gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, func1.*" \ | |
| 131 | "continue to breakpoint at func1" | |
| 132 | ||
| 133 | # Continue until the first change, from -1 to 0 | |
| 134 | ||
| 4033a6bf PA |
135 | set test "watchpoint hit, first time" |
| 136 | gdb_test_multiple "cont" $test { | |
| c906108c | 137 | -re "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*$gdb_prompt $" { |
| 4033a6bf | 138 | pass $test |
| c906108c SS |
139 | } |
| 140 | -re "Continuing.*Breakpoint.*func1.*$gdb_prompt $" { | |
| 141 | setup_xfail "m68*-*-*" 2597 | |
| 142 | fail "thought it hit breakpoint at func1 twice" | |
| 27d3a1a2 | 143 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| c906108c SS |
144 | gdb_test "continue" "\ |
| 145 | Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count;" \ | |
| 4033a6bf | 146 | $test |
| c906108c | 147 | } |
| c906108c SS |
148 | } |
| 149 | ||
| c2d11a7d JM |
150 | # Check that the hit count is reported correctly |
| 151 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 1 time.*" "Watchpoint hit count is 1" | |
| 152 | ||
| 27d3a1a2 | 153 | gdb_test_no_output "delete \$func1_breakpoint_number" |
| c906108c SS |
154 | |
| 155 | # Continue until the next change, from 0 to 1. | |
| 156 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" "watchpoint hit, second time" | |
| 157 | ||
| c2d11a7d JM |
158 | # Check that the hit count is reported correctly |
| 159 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 2 times.*" "Watchpoint hit count is 2" | |
| 160 | ||
| c906108c SS |
161 | # Continue until the next change, from 1 to 2. |
| 162 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" "watchpoint hit, third time" | |
| c2d11a7d JM |
163 | |
| 164 | # Check that the hit count is reported correctly | |
| 165 | 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 |
166 | |
| 167 | # Continue until the next change, from 2 to 3. | |
| 168 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" "watchpoint hit, fourth time" | |
| 169 | ||
| c2d11a7d JM |
170 | # Check that the hit count is reported correctly |
| 171 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 4 times.*" "Watchpoint hit count is 4" | |
| 172 | ||
| c906108c SS |
173 | # Continue until the next change, from 3 to 4. |
| 174 | # Note that this one is outside the loop. | |
| 175 | ||
| 176 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" "watchpoint hit, fifth time" | |
| 177 | ||
| c2d11a7d JM |
178 | # Check that the hit count is reported correctly |
| 179 | gdb_test "info break" ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+ival3\r\n\[ \t]+breakpoint already hit 5 times.*" "Watchpoint hit count is 5" | |
| 180 | ||
| c906108c SS |
181 | # Continue until we hit the finishing marker function. |
| 182 | # Make sure we hit no more watchpoints. | |
| 183 | ||
| 184 | gdb_test "cont" "Continuing.*Breakpoint.*marker2 \(\).*" \ | |
| 185 | "continue to marker2" | |
| 186 | ||
| 187 | # Disable the watchpoint so we run at full speed until we exit. | |
| 188 | ||
| 189 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "watchpoint disabled" ] { | |
| ae59b1da | 190 | return |
| c906108c SS |
191 | } |
| 192 | ||
| 193 | ||
| 194 | # Run until process exits. | |
| 195 | ||
| 196 | if [target_info exists gdb,noresults] { return } | |
| 197 | ||
| 7a292a7a | 198 | gdb_continue_to_end "continue to exit in test_simple_watchpoint" |
| c906108c SS |
199 | } |
| 200 | ||
| 201 | # Test disabling watchpoints. | |
| 202 | ||
| 203 | proc test_disabling_watchpoints {} { | |
| 204 | global gdb_prompt | |
| 205 | global binfile | |
| 206 | global srcfile | |
| 207 | global decimal | |
| 208 | global hex | |
| 209 | ||
| e4d63ba2 | 210 | gdb_test "info watch" "\[0-9]+\[ \]*.*watchpoint.*ival3.*" "watchpoints found in watchpoint/breakpoint table" |
| 085dd6e6 | 211 | |
| c906108c SS |
212 | # Ensure that the watchpoint is disabled when we startup. |
| 213 | ||
| 214 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_disabling_watchpoints" ] { | |
| ae59b1da | 215 | return 0 |
| c906108c SS |
216 | } |
| 217 | ||
| 218 | ||
| 219 | # Run until we get to the first marker function. | |
| 220 | ||
| 221 | gdb_run_cmd | |
| 222 | set timeout 600 | |
| 4033a6bf PA |
223 | set test "run to marker1 in test_disabling_watchpoints" |
| 224 | set retcode [gdb_test_multiple "" $test { | |
| c906108c | 225 | -re "Breakpoint 1, marker1 .*$gdb_prompt $" { |
| 4033a6bf | 226 | pass $test |
| c906108c | 227 | } |
| 4033a6bf PA |
228 | }] |
| 229 | ||
| 230 | if { $retcode != 0 } { | |
| 231 | return | |
| c906108c SS |
232 | } |
| 233 | ||
| 234 | # After reaching the marker function, enable the watchpoint. | |
| 235 | ||
| 236 | if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "watchpoint enabled" ] { | |
| ae59b1da | 237 | return |
| c906108c SS |
238 | } |
| 239 | ||
| 240 | ||
| 241 | # Continue until the first change, from -1 to 0 | |
| 242 | # Don't check the old value, because on VxWorks the variable value | |
| 243 | # will not have been reinitialized. | |
| 244 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = .*New value = 0.*ival3 = count; ival4 = count;.*" "watchpoint hit in test_disabling_watchpoints, first time" | |
| 245 | ||
| 246 | # Continue until the next change, from 0 to 1. | |
| 247 | 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" | |
| 248 | ||
| 249 | # Disable the watchpoint but leave breakpoints | |
| 250 | ||
| 251 | if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint #2 in test_disabling_watchpoints" ] { | |
| ae59b1da | 252 | return 0 |
| c906108c SS |
253 | } |
| 254 | ||
| 255 | ||
| 256 | # Check watchpoint list, looking for the entry that confirms the | |
| 257 | # watchpoint is disabled. | |
| 085dd6e6 | 258 | gdb_test "info watchpoints" "\[0-9]+\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table" |
| c906108c SS |
259 | |
| 260 | # Continue until we hit the finishing marker function. | |
| 261 | # Make sure we hit no more watchpoints. | |
| 262 | gdb_test "cont" "Continuing.*Breakpoint.*marker2 \\(\\).*" \ | |
| 263 | "disabled watchpoint skipped" | |
| 264 | ||
| 265 | if [target_info exists gdb,noresults] { return } | |
| 266 | ||
| 7a292a7a | 267 | gdb_continue_to_end "continue to exit in test_disabling_watchpoints" |
| c906108c SS |
268 | } |
| 269 | ||
| 270 | # Test stepping and other mundane operations with watchpoints enabled | |
| 271 | proc test_stepping {} { | |
| 272 | global gdb_prompt | |
| 273 | ||
| 274 | if [runto marker1] then { | |
| 275 | gdb_test "watch ival2" ".*\[Ww\]atchpoint \[0-9\]*: ival2" | |
| 276 | ||
| 277 | # Well, let's not be too mundane. It should be a *bit* of a challenge | |
| 278 | gdb_test "break func2 if 0" "Breakpoint.*at.*" | |
| 279 | gdb_test "p \$func2_breakpoint_number = \$bpnum" " = .*" | |
| 280 | ||
| 085dd6e6 | 281 | gdb_test "p func1 ()" "= 73" \ |
| 4b2b3b3e | 282 | "calling function with watchpoint enabled" |
| c906108c SS |
283 | |
| 284 | # | |
| 285 | # "finish" brings us back to main. | |
| 286 | # On some targets (e.g. alpha) gdb will stop from the finish in midline | |
| 287 | # of the marker1 call. This is due to register restoring code on | |
| 288 | # the alpha and might be caused by stack adjustment instructions | |
| 289 | # on other targets. In this case we will step once more. | |
| 290 | # | |
| 291 | ||
| 292 | send_gdb "finish\n" | |
| 293 | gdb_expect { | |
| 2df3850c JM |
294 | -re "Run.*exit from.*marker1.* at" { |
| 295 | pass "finish from marker1" | |
| 296 | } | |
| dfcd3bfb | 297 | default { fail "finish from marker1 (timeout)" ; return } |
| c906108c SS |
298 | } |
| 299 | ||
| 300 | gdb_expect { | |
| 301 | -re "marker1 \\(\\);.*$gdb_prompt $" { | |
| 302 | send_gdb "step\n" | |
| 303 | exp_continue | |
| 304 | } | |
| 305 | -re "func1 \\(\\);.*$gdb_prompt $" { | |
| dfcd3bfb | 306 | pass "back at main from marker1" |
| c906108c SS |
307 | } |
| 308 | -re ".*$gdb_prompt $" { | |
| dfcd3bfb | 309 | fail "back at main from marker1" |
| c906108c | 310 | } |
| dfcd3bfb | 311 | default { fail "back at main from marker1 (timeout)" ; return } |
| c906108c SS |
312 | } |
| 313 | ||
| 314 | gdb_test "next" "for \\(count = 0.*" "next to `for' in watchpoint.exp" | |
| 315 | ||
| 316 | # Now test that "until" works. It's a bit tricky to test | |
| 317 | # "until", because compilers don't always arrange the code | |
| 318 | # exactly the same way, and we might get slightly different | |
| 319 | # sequences of statements. But the following should be true | |
| 320 | # (if not it is a compiler or a debugger bug): The user who | |
| 321 | # does "until" at every statement of a loop should end up | |
| 322 | # stepping through the loop once, and the debugger should not | |
| 323 | # stop for any of the remaining iterations. | |
| 324 | ||
| 325 | gdb_test "until" "ival1 = count.*" "until to ival1 assignment" | |
| 326 | gdb_test "until" "ival3 = count.*" "until to ival3 assignment" | |
| 4033a6bf PA |
327 | set test "until out of loop" |
| 328 | gdb_test_multiple "until" $test { | |
| c906108c | 329 | -re "(for \\(count = 0|\}).*$gdb_prompt $" { |
| 4033a6bf | 330 | gdb_test "until" "ival1 = count; /. Outside loop ./" $test |
| c906108c SS |
331 | } |
| 332 | -re "ival1 = count; /. Outside loop ./.*$gdb_prompt $" { | |
| 4033a6bf | 333 | pass $test |
| c906108c | 334 | } |
| c906108c SS |
335 | } |
| 336 | ||
| 337 | gdb_test "step" "ival2 = count.*" "step to ival2 assignment" | |
| 338 | } | |
| 339 | } | |
| 340 | ||
| 341 | # Test stepping and other mundane operations with watchpoints enabled | |
| 342 | proc test_watchpoint_triggered_in_syscall {} { | |
| 343 | global gdb_prompt | |
| 344 | ||
| 958a4e4c MS |
345 | # These tests won't work without printf support. |
| 346 | if [gdb_skip_stdio_test "watchpoints triggered in syscall"] { | |
| 347 | return; | |
| c906108c SS |
348 | } |
| 349 | # Run until we get to the first marker function. | |
| 350 | set x 0 | |
| 351 | set y 0 | |
| 352 | set testname "Watch buffer passed to read syscall" | |
| 353 | if [runto marker2] then { | |
| 354 | gdb_test "watch buf\[0\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[0\\\]" | |
| 355 | gdb_test "watch buf\[1\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[1\\\]" | |
| 356 | gdb_test "watch buf\[2\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[2\\\]" | |
| 357 | gdb_test "watch buf\[3\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[3\\\]" | |
| 358 | gdb_test "watch buf\[4\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[4\\\]" | |
| 359 | gdb_test "break marker4" ".*Breakpoint.*" | |
| 360 | ||
| 27d3a1a2 | 361 | gdb_test_no_output "set doread = 1" |
| c906108c | 362 | |
| 4033a6bf | 363 | # If we send gdb "123\n" before gdb has switched the tty, then it goes |
| c906108c SS |
364 | # to gdb, not the inferior, and we lose. So that is why we have |
| 365 | # watchpoint.c prompt us, so we can wait for that prompt. | |
| 02746bbc | 366 | |
| c906108c SS |
367 | send_gdb "continue\n"; |
| 368 | gdb_expect { | |
| 369 | -re "Continuing\\.\r\ntype stuff for buf now:" { | |
| 370 | pass "continue to read" | |
| 371 | } | |
| 372 | default { | |
| 373 | fail "continue to read"; | |
| ae59b1da | 374 | return |
| c906108c SS |
375 | } |
| 376 | } | |
| 377 | ||
| 4033a6bf PA |
378 | set test "sent 123" |
| 379 | gdb_test_multiple "123" $test { | |
| c906108c SS |
380 | -re ".*\[Ww\]atchpoint.*buf\\\[0\\\].*Old value = 0.*New value = 49\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } |
| 381 | -re ".*\[Ww\]atchpoint.*buf\\\[1\\\].*Old value = 0.*New value = 50\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } | |
| 382 | -re ".*\[Ww\]atchpoint.*buf\\\[2\\\].*Old value = 0.*New value = 51\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } | |
| 383 | -re ".*\[Ww\]atchpoint.*buf\\\[3\\\].*Old value = 0.*New value = 10\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } | |
| 4033a6bf | 384 | -re ".*$gdb_prompt $" { pass $test } |
| c906108c SS |
385 | } |
| 386 | ||
| 387 | # Examine the values in buf to see how many watchpoints we | |
| 388 | # should have printed. | |
| 4033a6bf PA |
389 | set test "print buf\[0\]" |
| 390 | gdb_test_multiple $test $test { | |
| 391 | -re ".*= 49.*$gdb_prompt $" { set y [expr $y+1]; pass $test } | |
| 392 | -re ".*= 0.*$gdb_prompt $" { $test } | |
| c906108c | 393 | } |
| 4033a6bf PA |
394 | set test "print buf\[1\]" |
| 395 | gdb_test_multiple $test $test { | |
| 396 | -re ".*= 50.*$gdb_prompt $" { set y [expr $y+1]; pass $test } | |
| 397 | -re ".*= 0.*$gdb_prompt $" { pass $test } | |
| c906108c | 398 | } |
| 4033a6bf PA |
399 | set test "print buf\[2\]" |
| 400 | gdb_test_multiple $test $test { | |
| 401 | -re ".*= 51.*$gdb_prompt $" { set y [expr $y+1]; pass $test } | |
| 402 | -re ".*= 0.*$gdb_prompt $" { pass $test } | |
| c906108c | 403 | } |
| 4033a6bf PA |
404 | set test "print buf\[3\]" |
| 405 | gdb_test_multiple $test $test { | |
| 406 | -re ".*= 10.*$gdb_prompt $" { set y [expr $y+1]; pass $test } | |
| 407 | -re ".*= 0.*$gdb_prompt $" { pass $test } | |
| c906108c SS |
408 | } |
| 409 | ||
| 410 | # Did we find what we were looking for? If not, flunk it. | |
| 411 | if [expr $x==$y] then { pass $testname } else { fail "$testname (only triggered $x watchpoints, expected $y)"} | |
| 412 | ||
| 413 | # Continue until we hit the finishing marker function. | |
| 414 | # Make sure we hit no more watchpoints. | |
| 415 | gdb_test "cont" "Continuing.*Breakpoint.*marker4 \\(\\).*" \ | |
| 416 | "continue to marker4" | |
| 417 | ||
| 418 | # Disable everything so we can finish the program at full speed | |
| 27d3a1a2 | 419 | gdb_test_no_output "disable" "disable in test_watchpoint_triggered_in_syscall" |
| c906108c SS |
420 | |
| 421 | if [target_info exists gdb,noresults] { return } | |
| 422 | ||
| 7a292a7a | 423 | gdb_continue_to_end "continue to exit in test_watchpoint_triggered_in_syscall" |
| c906108c SS |
424 | } |
| 425 | } | |
| 426 | ||
| 427 | # Do a simple test of of watching through a pointer when the pointer | |
| 428 | # itself changes. Should add some more complicated stuff here. | |
| 429 | ||
| 430 | proc test_complex_watchpoint {} { | |
| 431 | global gdb_prompt | |
| 432 | ||
| 433 | if [runto marker4] then { | |
| 434 | gdb_test "watch ptr1->val" ".*\[Ww\]atchpoint \[0-9\]*: ptr1->val" | |
| 435 | gdb_test "break marker5" ".*Breakpoint.*" | |
| 436 | ||
| 437 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ptr1->val.*Old value = 1.*New value = 2.*" "Test complex watchpoint" | |
| 438 | ||
| 439 | # Continue until we hit the marker5 function. | |
| 440 | # Make sure we hit no more watchpoints. | |
| 441 | ||
| 442 | gdb_test "cont" "Continuing.*Breakpoint.*marker5 \\(\\).*" \ | |
| 443 | "did not trigger wrong watchpoint" | |
| 444 | ||
| 085dd6e6 JM |
445 | # Test watches of things declared locally in a function. |
| 446 | # In particular, test that a watch of stack-based things | |
| 447 | # is deleted when the stack-based things go out of scope. | |
| 448 | # | |
| 27d3a1a2 | 449 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| 085dd6e6 JM |
450 | gdb_test "break marker6" ".*Breakpoint.*" |
| 451 | gdb_test "cont" "Continuing.*Breakpoint.*marker6 \\(\\).*" \ | |
| 452 | "continue to marker6" | |
| bdddb4de UW |
453 | gdb_breakpoint [gdb_get_line_number "func2 breakpoint here"] |
| 454 | gdb_continue_to_breakpoint "func2 breakpoint here" | |
| 085dd6e6 JM |
455 | |
| 456 | # Test a watch of a single stack-based variable, whose scope | |
| 457 | # is the function we're now in. This should auto-delete when | |
| 458 | # execution exits the scope of the watchpoint. | |
| 459 | # | |
| 460 | gdb_test "watch local_a" ".*\[Ww\]atchpoint \[0-9\]*: local_a" "set local watch" | |
| 461 | gdb_test "cont" "\[Ww\]atchpoint.*local_a.*" "trigger local watch" | |
| e2de5390 JK |
462 | |
| 463 | set test "self-delete local watch" | |
| 464 | gdb_test_multiple "cont" $test { | |
| 465 | -re "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*\r\n$gdb_prompt $" { | |
| 466 | pass $test | |
| 467 | } | |
| 468 | -re "can't compute CFA for this frame.*\r\n$gdb_prompt $" { | |
| 469 | global compiler_info no_hw | |
| 470 | ||
| 471 | # GCC < 4.5.0 does not get LOCATIONS_VALID set by dwarf2read.c. | |
| 472 | # Therefore epilogue unwinder gets applied which is | |
| 473 | # incompatible with dwarf2_frame_cfa. | |
| 474 | verbose -log "compiler_info: $compiler_info" | |
| 475 | if {$no_hw && ([test_compiler_info {gcc-[0-3]-*}] | |
| 476 | || [test_compiler_info {gcc-4-[0-4]-*}])} { | |
| 477 | xfail "$test (old GCC has broken watchpoints in epilogues)" | |
| 478 | return | |
| 479 | } | |
| 480 | fail $test | |
| 481 | } | |
| 482 | } | |
| 085dd6e6 | 483 | |
| bdddb4de | 484 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 085dd6e6 JM |
485 | # We should be in "func2" again now. Test a watch of an |
| 486 | # expression which includes both a stack-based local and | |
| 487 | # something whose scope is larger than this invocation | |
| 488 | # of "func2". This should also auto-delete. | |
| 489 | # | |
| 490 | gdb_test "watch local_a + ival5" ".*\[Ww\]atchpoint \[0-9\]*: local_a . ival5" \ | |
| 491 | "set partially local watch" | |
| 492 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ | |
| 493 | "trigger1 partially local watch" | |
| 494 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ | |
| 495 | "trigger2 partially local watch" | |
| 496 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 497 | "self-delete partially local watch" | |
| 498 | ||
| 499 | # We should be in "func2" again now. Test a watch of a | |
| 500 | # static (non-stack-based) local. Since this has scope | |
| 501 | # across any invocations of "func2", it should not auto- | |
| 502 | # delete. | |
| 503 | # | |
| bdddb4de | 504 | gdb_continue_to_breakpoint "func2 breakpoint here" |
| 085dd6e6 JM |
505 | gdb_test "watch static_b" ".*\[Ww\]atchpoint \[0-9\]*: static_b" \ |
| 506 | "set static local watch" | |
| 507 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: static_b.*" \ | |
| 508 | "trigger static local watch" | |
| 509 | gdb_test "cont" "Continuing.*marker6 \\(\\).*" \ | |
| 510 | "continue after trigger static local watch" | |
| 511 | gdb_test "info break" ".*watchpoint.*static_b.*" \ | |
| 512 | "static local watch did not self-delete" | |
| 513 | ||
| 514 | # We should be in "recurser" now. Test a watch of a stack- | |
| 515 | # based local. Symbols mentioned in a watchpoint are bound | |
| 516 | # at watchpoint-creation. Thus, a watch of a stack-based | |
| 517 | # local to a recursing function should be bound only to that | |
| 518 | # one invocation, and should not trigger for other invocations. | |
| 519 | # | |
| 18ac113b | 520 | gdb_test "tbreak recurser" ".*breakpoint.*" |
| 085dd6e6 | 521 | gdb_test "cont" "Continuing.*recurser.*" |
| 97ddaa9b | 522 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" |
| 085dd6e6 JM |
523 | gdb_test "watch local_x" ".*\[Ww\]atchpoint \[0-9\]*: local_x" \ |
| 524 | "set local watch in recursive call" | |
| 525 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_x.*New value = 2.*" \ | |
| 526 | "trigger local watch in recursive call" | |
| 527 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 528 | "self-delete local watch in recursive call" | |
| 529 | ||
| 97ddaa9b PH |
530 | # Repeat the preceding test, but this time use "recurser::local_x" as |
| 531 | # the variable to track. | |
| 532 | gdb_test "cont" "Continuing.*marker6.*" | |
| 533 | gdb_test "tbreak recurser" ".*breakpoint.*" | |
| 534 | gdb_test "cont" "Continuing.*recurser.*" | |
| 535 | gdb_test "next" "if \\(x > 0.*" "next past local_x initialization" | |
| 536 | gdb_test "watch recurser::local_x" ".*\[Ww\]atchpoint \[0-9\]*: recurser::local_x" \ | |
| 537 | "set local watch in recursive call with explicit scope" | |
| 538 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: recurser::local_x.*New value = 2.*" \ | |
| 539 | "trigger local watch with explicit scope in recursive call" | |
| 540 | gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ | |
| 541 | "self-delete local watch with explicit scope in recursive call (2)" | |
| 542 | ||
| c906108c | 543 | # Disable everything so we can finish the program at full speed |
| 27d3a1a2 | 544 | gdb_test_no_output "disable" "disable in test_complex_watchpoint" |
| c906108c SS |
545 | |
| 546 | if [target_info exists gdb,noresults] { return } | |
| 547 | ||
| 085dd6e6 | 548 | gdb_continue_to_end "continue to exit in test_complex_watchpoint" |
| c906108c SS |
549 | } |
| 550 | } | |
| 551 | ||
| 293e9a31 DC |
552 | proc test_watchpoint_and_breakpoint {} { |
| 553 | global gdb_prompt | |
| 554 | ||
| 555 | # This is a test for PR gdb/38, which involves setting a | |
| 556 | # watchpoint right after you've reached a breakpoint. | |
| 557 | ||
| 558 | if [runto func3] then { | |
| 559 | gdb_breakpoint [gdb_get_line_number "second x assignment"] | |
| 560 | gdb_continue_to_breakpoint "second x assignment" | |
| 561 | gdb_test "watch x" ".*atchpoint \[0-9\]+: x" | |
| 562 | gdb_test_multiple "next" "next after watch x" { | |
| 563 | -re ".*atchpoint \[0-9\]+: x\r\n\r\nOld value = 0\r\nNew value = 1\r\n.*$gdb_prompt $" { | |
| 564 | pass "next after watch x" | |
| 565 | } | |
| 566 | -re "\[0-9\]+\[\t \]+y = 1;\r\n$gdb_prompt $" { | |
| 567 | kfail "gdb/38" "next after watch x" | |
| 568 | } | |
| 569 | } | |
| 06a64a0b TT |
570 | |
| 571 | gdb_test_no_output "delete \$bpnum" "delete watch x" | |
| 293e9a31 DC |
572 | } |
| 573 | } | |
| 65d79d4b SDJ |
574 | |
| 575 | proc test_constant_watchpoint {} { | |
| 576 | gdb_test "watch 5" "Cannot watch constant value `5'." "number is constant" | |
| aeaa2474 SA |
577 | gdb_test "watch (int *)5" "Cannot watch constant value `\\(int \\*\\)5'." \ |
| 578 | "number with cast is constant" | |
| 65d79d4b SDJ |
579 | gdb_test "watch marker1" "Cannot watch constant value `marker1'." \ |
| 580 | "marker1 is constant" | |
| 581 | gdb_test "watch count + 6" ".*atchpoint \[0-9\]+: count \\+ 6" | |
| 582 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `count + 6'" | |
| 583 | gdb_test "watch 7 + count" ".*atchpoint \[0-9\]+: 7 \\+ count" | |
| 584 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `7 + count'" | |
| 585 | } | |
| 586 | ||
| efa80663 PA |
587 | proc test_disable_enable_software_watchpoint {} { |
| 588 | # This is regression test for a bug that caused `enable' to fail | |
| 589 | # for software watchpoints. | |
| 590 | ||
| 591 | # Watch something not memory to force a software watchpoint. | |
| 592 | gdb_test {watch $pc} ".*atchpoint \[0-9\]+: .pc" | |
| 593 | ||
| 594 | gdb_test_no_output "disable \$bpnum" "disable watchpoint `\$pc'" | |
| 595 | gdb_test_no_output "enable \$bpnum" "reenable watchpoint `\$pc'" | |
| 596 | ||
| 597 | gdb_test "info watchpoint \$bpnum" \ | |
| 598 | ".*watchpoint\[ \t\]+keep\[ \t\]+y\[ \t\]+.pc.*" \ | |
| 599 | "watchpoint `\$pc' is enabled" | |
| 600 | ||
| 601 | gdb_test_no_output "delete \$bpnum" "delete watchpoint `\$pc'" | |
| 602 | } | |
| 603 | ||
| 06a64a0b TT |
604 | proc test_watch_location {} { |
| 605 | gdb_breakpoint [gdb_get_line_number "func5 breakpoint here"] | |
| 606 | gdb_continue_to_breakpoint "func5 breakpoint here" | |
| 607 | ||
| 608 | gdb_test "watch -location *x" "atchpoint .*: .*" "watch -location .x" | |
| 609 | ||
| 610 | gdb_test "continue" \ | |
| 611 | "Continuing.*\[Ww\]atchpoint .*: .*New value = 27.*" \ | |
| 612 | "continue with watch -location" | |
| 613 | ||
| 614 | gdb_test_no_output "delete \$bpnum" "delete watch -location" | |
| 615 | } | |
| 616 | ||
| fabde485 PA |
617 | # Tests watching areas larger than a word. |
| 618 | ||
| 619 | proc test_wide_location_1 {} { | |
| 4b3c9f41 | 620 | global no_hw |
| b62e2b27 | 621 | global gdb_prompt |
| 4b3c9f41 | 622 | |
| fabde485 PA |
623 | # This test watches two words on most 32-bit ABIs, and one word on |
| 624 | # most 64-bit ABIs. | |
| 625 | ||
| 626 | # Platforms where the target can't watch such a large region | |
| 627 | # should clear hw_expected below. | |
| b62e2b27 | 628 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| bdddb4de UW |
629 | || [istarget arm*-*-*] |
| 630 | || ([istarget powerpc*-*-*] && ![is_lp64_target])} { | |
| fabde485 PA |
631 | set hw_expected 0 |
| 632 | } else { | |
| 633 | set hw_expected 1 | |
| 634 | } | |
| 635 | ||
| 636 | gdb_breakpoint [gdb_get_line_number "func6 breakpoint here"] | |
| 637 | gdb_continue_to_breakpoint "func6 breakpoint here" | |
| 638 | ||
| 639 | if { $hw_expected } { | |
| 640 | gdb_test "watch foo2" "Hardware watchpoint .*: .*" "watch foo2" | |
| 641 | gdb_test "continue" \ | |
| 642 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*" \ | |
| 643 | "continue with watch foo2" | |
| 644 | } else { | |
| 645 | gdb_test "watch foo2" "atchpoint .*: .*" "watch foo2" | |
| b62e2b27 UW |
646 | set test "continue with watch foo2" |
| 647 | gdb_test_multiple "cont" $test { | |
| 648 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 11\\\}\\\}.*$gdb_prompt $" { | |
| 649 | pass $test | |
| 650 | } | |
| 651 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 652 | # This may happen with remote targets that support | |
| 653 | # hardware watchpoints. We only find out the | |
| 654 | # watchpoint was too large, for example, at insert | |
| 655 | # time. If GDB is ever adjusted to downgrade the | |
| 656 | # watchpoint automatically in this case, this match | |
| 657 | # should be removed. | |
| 658 | pass $test | |
| 659 | } | |
| 660 | } | |
| fabde485 PA |
661 | } |
| 662 | ||
| 663 | gdb_test_no_output "delete \$bpnum" "delete watch foo2" | |
| 664 | } | |
| 665 | ||
| 666 | proc test_wide_location_2 {} { | |
| 4b3c9f41 | 667 | global no_hw |
| b62e2b27 | 668 | global gdb_prompt |
| 4b3c9f41 | 669 | |
| fabde485 PA |
670 | # This test watches four words on most 32-bit ABIs, and two words |
| 671 | # on 64-bit ABIs. | |
| 672 | ||
| 673 | # Platforms where the target can't watch such a large region | |
| 674 | # should clear hw_expected below. | |
| b62e2b27 | 675 | if { $no_hw || [target_info exists gdb,no_hardware_watchpoints] |
| bdddb4de UW |
676 | || [istarget arm*-*-*] |
| 677 | || [istarget powerpc*-*-*]} { | |
| fabde485 PA |
678 | set hw_expected 0 |
| 679 | } else { | |
| 680 | set hw_expected 1 | |
| 681 | } | |
| 682 | ||
| 683 | gdb_breakpoint [gdb_get_line_number "func7 breakpoint here"] | |
| 684 | gdb_continue_to_breakpoint "func7 breakpoint here" | |
| 685 | ||
| 686 | if { $hw_expected } { | |
| 687 | gdb_test "watch foo4" "Hardware watchpoint .*: .*" "watch foo4" | |
| 688 | gdb_test "continue" \ | |
| 689 | "Continuing.*Hardware watchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*" \ | |
| 690 | "continue with watch foo4" | |
| 691 | } else { | |
| 692 | gdb_test "watch foo4" "atchpoint .*: .*" "watch foo4" | |
| b62e2b27 UW |
693 | set test "continue with watch foo4" |
| 694 | gdb_test_multiple "cont" $test { | |
| 695 | -re "Continuing.*\[Ww\]atchpoint .*: .*New value = \\\{val = \\\{0, 0, 0, 33\\\}\\\}.*$gdb_prompt $" { | |
| 696 | pass $test | |
| 697 | } | |
| 698 | -re "Could not insert hardware breakpoints:.*You may have requested too many hardware breakpoints/watchpoints.*$gdb_prompt $" { | |
| 699 | # This may happen with remote targets that support | |
| 700 | # hardware watchpoints. We only find out the | |
| 701 | # watchpoint was too large, for example, at insert | |
| 702 | # time. If GDB is ever adjusted to downgrade the | |
| 703 | # watchpoint automatically in this case, this match | |
| 704 | # should be removed. | |
| 705 | pass $test | |
| 706 | } | |
| 707 | } | |
| fabde485 PA |
708 | } |
| 709 | ||
| 710 | gdb_test_no_output "delete \$bpnum" "delete watch foo4" | |
| 711 | } | |
| 712 | ||
| fa4727a6 DJ |
713 | proc test_inaccessible_watchpoint {} { |
| 714 | global gdb_prompt | |
| 715 | ||
| 716 | # This is a test for watchpoints on currently inaccessible (but later | |
| 717 | # valid) memory. | |
| 718 | ||
| 719 | if [runto func4] then { | |
| ccc57cf9 PA |
720 | # Make sure we only allow memory access errors. |
| 721 | set msg "watchpoint refused to insert on nonexistent struct member" | |
| 722 | gdb_test_multiple "watch struct1.nosuchmember" $msg { | |
| 723 | -re ".*atchpoint \[0-9\]+: struct1.nosuchmember.*$gdb_prompt $" { | |
| 724 | # PR breakpoints/9681 | |
| 725 | fail $msg | |
| 726 | } | |
| 727 | -re "There is no member named nosuchmember\\..*$gdb_prompt $" { | |
| 728 | pass $msg | |
| 729 | } | |
| 730 | } | |
| 731 | ||
| 8464be76 DJ |
732 | # See whether a watchpoint on a normal variable is a hardware |
| 733 | # watchpoint or not. The watchpoints on NULL should be hardware | |
| 734 | # iff this one is. | |
| 735 | set watchpoint_msg "Watchpoint" | |
| 736 | gdb_test_multiple "watch global_ptr" "watch global_ptr" { | |
| 737 | -re "Watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { | |
| 738 | pass "watch global_ptr" | |
| 739 | } | |
| 740 | -re "Hardware watchpoint \[0-9\]+: global_ptr\r\n.*$gdb_prompt $" { | |
| 741 | set watchpoint_msg "Hardware watchpoint" | |
| 742 | pass "watch global_ptr" | |
| 743 | } | |
| 744 | } | |
| 745 | delete_breakpoints | |
| 746 | ||
| 747 | # Make sure that we can watch a constant address, and correctly | |
| 748 | # use a HW watchpoint if supported. | |
| 749 | gdb_test "watch *(int *) 0" \ | |
| 750 | "$watchpoint_msg \[0-9\]+: \\*\\(int \\*\\) 0" | |
| 751 | delete_breakpoints | |
| 752 | ||
| a1442452 PA |
753 | # The same, but using -location through an indirection. |
| 754 | gdb_test "watch -location *global_ptr" \ | |
| 4a4106ca | 755 | "$watchpoint_msg \[0-9\]+: \-location \\*global_ptr" |
| a1442452 PA |
756 | delete_breakpoints |
| 757 | ||
| b800ec70 UW |
758 | # This step requires two HW watchpoints. Since some platforms only |
| 759 | # have a single one, accept either SW or HW watchpoint in this case. | |
| 760 | if {[skip_hw_watchpoint_multi_tests]} { | |
| 761 | set watchpoint_msg "(Watchpoint|Hardware watchpoint)" | |
| efd11a33 JK |
762 | } |
| 763 | ||
| 764 | gdb_test "watch *global_ptr" "$watchpoint_msg \[0-9\]+: \\\*global_ptr" | |
| 65d79d4b SDJ |
765 | gdb_test "set \$global_ptr_breakpoint_number = \$bpnum" "" |
| 766 | gdb_test "next" ".*global_ptr = buf.*" "global_ptr next" | |
| fa4727a6 DJ |
767 | gdb_test_multiple "next" "next over ptr init" { |
| 768 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = .*\r\nNew value = 3 .*\r\n.*$gdb_prompt $" { | |
| 769 | # We can not test for <unknown> here because NULL may be readable. | |
| 770 | # This test does rely on *NULL != 3. | |
| 771 | pass "next over ptr init" | |
| 772 | } | |
| 773 | } | |
| 774 | gdb_test_multiple "next" "next over buffer set" { | |
| 775 | -re ".*atchpoint \[0-9\]+: \\*global_ptr\r\n\r\nOld value = 3 .*\r\nNew value = 7 .*\r\n.*$gdb_prompt $" { | |
| 776 | pass "next over buffer set" | |
| 777 | } | |
| 778 | } | |
| 65d79d4b SDJ |
779 | gdb_test "delete \$global_ptr_breakpoint_number" "" |
| 780 | gdb_test "watch **global_ptr_ptr" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr" | |
| 781 | gdb_test "set \$global_ptr_ptr_breakpoint_number = \$bpnum" "" | |
| c79a8e11 | 782 | gdb_test "next" ".*global_ptr_ptr = &global_ptr.*" "global_ptr_ptr next" |
| 65d79d4b SDJ |
783 | gdb_test "next" ".*atchpoint \[0-9\]+: \\*\\*global_ptr_ptr\[\r\n\]+Old value = .*\r\nNew value = 7 .*" "next over global_ptr_ptr init" |
| 784 | 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" | |
| 785 | 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" | |
| 786 | gdb_test_no_output "delete \$global_ptr_ptr_breakpoint_number" | |
| fa4727a6 DJ |
787 | } |
| 788 | } | |
| a13491c8 PA |
789 | |
| 790 | proc test_no_hw_watchpoints {} { | |
| 4b3c9f41 PA |
791 | global testfile |
| 792 | ||
| 793 | clean_restart $testfile | |
| a13491c8 PA |
794 | |
| 795 | # Verify that a user can force GDB to use "slow" watchpoints. | |
| 796 | # (This proves rather little on kernels that don't support | |
| 797 | # fast watchpoints, but still...) | |
| 798 | # | |
| 799 | if ![runto_main] then { fail "watch tests suppressed" } | |
| 800 | ||
| 801 | gdb_test_no_output "set can-use-hw-watchpoints 0" "disable fast watches" | |
| 802 | ||
| 803 | gdb_test "show can-use-hw-watchpoints" \ | |
| 804 | "Debugger's willingness to use watchpoint hardware is 0." \ | |
| 805 | "show disable fast watches" | |
| 806 | ||
| 807 | gdb_test "watch ival3 if count > 1" \ | |
| 808 | "Watchpoint \[0-9\]*: ival3.*" \ | |
| 809 | "set slow conditional watch" | |
| 810 | ||
| 811 | gdb_test "continue" \ | |
| 812 | "Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*" \ | |
| 813 | "trigger slow conditional watch" | |
| 814 | ||
| 815 | gdb_test_no_output "delete \$bpnum" "delete watch ival3" | |
| 816 | ||
| cb8ea32b KS |
817 | gdb_test "watch ival3 if count > 1 thread 1 " \ |
| 818 | "Watchpoint \[0-9\]*: ival3.*" \ | |
| 819 | "set slow condition watch w/thread" | |
| 820 | ||
| 821 | gdb_test_no_output "delete \$bpnum" "delete watch w/condition and thread" | |
| 822 | ||
| a13491c8 PA |
823 | # We've explicitly disabled hardware watches. Verify that GDB |
| 824 | # refrains from using them. | |
| 825 | # | |
| 826 | gdb_test "rwatch ival3" \ | |
| 827 | "Expression cannot be implemented with read/access watchpoint..*" \ | |
| 828 | "rwatch disallowed when can-set-hw-watchpoints cleared" | |
| 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 | ||
| c906108c SS |
881 | # Start with a fresh gdb. |
| 882 | ||
| 78b4f468 | 883 | set prev_timeout $timeout |
| c906108c SS |
884 | set timeout 600 |
| 885 | verbose "Timeout now 600 sec.\n" | |
| 886 | ||
| 4b3c9f41 | 887 | test_no_hw_watchpoints |
| c906108c | 888 | |
| 4b3c9f41 PA |
889 | proc do_tests {} { |
| 890 | global testfile | |
| 891 | global no_hw | |
| c906108c | 892 | |
| 4b3c9f41 | 893 | clean_restart $testfile |
| c906108c | 894 | |
| bdddb4de | 895 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 4b3c9f41 PA |
896 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 897 | } | |
| 898 | ||
| 899 | if [initialize] then { | |
| 900 | ||
| 901 | test_simple_watchpoint | |
| 902 | ||
| 903 | test_disabling_watchpoints | |
| 904 | ||
| 905 | if ![target_info exists gdb,cannot_call_functions] { | |
| 906 | test_stepping | |
| 907 | } | |
| c906108c SS |
908 | } |
| 909 | ||
| f3ad2025 PA |
910 | # Tests below don't rely on the markers and watchpoint set by |
| 911 | # `initialize' anymore. | |
| 912 | clean_restart $testfile | |
| 913 | ||
| bdddb4de | 914 | if {$no_hw || [target_info exists gdb,no_hardware_watchpoints]} { |
| 4b3c9f41 PA |
915 | gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| 916 | } | |
| 917 | ||
| c906108c SS |
918 | # Only enabled for some targets merely because it has not been tested |
| 919 | # elsewhere. | |
| 920 | # On sparc-sun-sunos4.1.3, GDB was running all the way to the marker4 | |
| 921 | # breakpoint before stopping for the watchpoint. I don't know why. | |
| 922 | if {[istarget "hppa*-*-*"]} then { | |
| 923 | test_watchpoint_triggered_in_syscall | |
| 924 | } | |
| 925 | ||
| dbd95daf | 926 | test_complex_watchpoint |
| 085dd6e6 | 927 | |
| 8464be76 DJ |
928 | test_inaccessible_watchpoint |
| 929 | ||
| 293e9a31 | 930 | test_watchpoint_and_breakpoint |
| 218d2fc6 TJB |
931 | |
| 932 | test_watchpoint_in_big_blob | |
| 65d79d4b | 933 | |
| 65d79d4b | 934 | test_constant_watchpoint |
| 06a64a0b | 935 | |
| efa80663 PA |
936 | test_disable_enable_software_watchpoint |
| 937 | ||
| 06a64a0b | 938 | test_watch_location |
| fabde485 | 939 | |
| fabde485 PA |
940 | test_wide_location_1 |
| 941 | test_wide_location_2 | |
| c906108c | 942 | } |
| 78b4f468 | 943 | |
| 4b3c9f41 PA |
944 | # On targets that can do hardware watchpoints, run the tests twice: |
| 945 | # once with hardware watchpoints enabled; another with hardware | |
| 946 | # watchpoints force-disabled. | |
| 947 | ||
| 948 | do_tests | |
| 949 | if ![target_info exists gdb,no_hardware_watchpoints] { | |
| 0f4d39d5 | 950 | with_test_prefix "no-hw" { |
| 6a5870ce PA |
951 | set no_hw 1 |
| 952 | do_tests | |
| 953 | } | |
| 4b3c9f41 PA |
954 | } |
| 955 | ||
| 78b4f468 RE |
956 | # Restore old timeout |
| 957 | set timeout $prev_timeout | |
| 958 | verbose "Timeout now $timeout sec.\n" |