1# Copyright 1997, 1999, 2002, 2003, 2004, 2007 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 16if $tracelevel then { 17 strace $tracelevel 18} 19 20set prms_id 0 21set bug_id 0 22 23# On HP-UX 11.0, this test is causing a process running the program 24# "attach" to be left around spinning. Until we figure out why, I am 25# commenting out the test to avoid polluting tiamat (our 11.0 nightly 26# test machine) with these processes. RT 27# 28# Setting the magic bit in the target app should work. I added a 29# "kill", and also a test for the R3 register warning. JB 30if { [istarget "hppa*-*-hpux*"] } { 31 return 0 32} 33 34# On SPU, this test currently fails because "sleep" is not supported. 35if { [istarget "spu*-*-*"] } { 36 return 0 37} 38 39# are we on a target board 40if [is_remote target] then { 41 return 0 42} 43 44set testfile "attach" 45set srcfile ${testfile}.c 46set srcfile2 ${testfile}2.c 47set binfile ${objdir}/${subdir}/${testfile} 48set binfile2 ${objdir}/${subdir}/${testfile}2 49set escapedbinfile [string_to_regexp ${objdir}/${subdir}/${testfile}] 50 51#execute_anywhere "rm -f ${binfile} ${binfile2}" 52remote_exec build "rm -f ${binfile} ${binfile2}" 53# For debugging this test 54# 55#log_user 1 56 57# build the first test case 58# 59if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { 60 untested attach.exp 61 return -1 62} 63 64# Build the in-system-call test 65 66if { [gdb_compile "${srcdir}/${subdir}/${srcfile2}" "${binfile2}" executable {debug}] != "" } { 67 untested attach.exp 68 return -1 69} 70 71if [get_compiler_info ${binfile}] { 72 return -1 73} 74 75proc do_attach_tests {} { 76 global gdb_prompt 77 global binfile 78 global escapedbinfile 79 global srcfile 80 global testfile 81 global objdir 82 global subdir 83 global timeout 84 85 # Start the program running and then wait for a bit, to be sure 86 # that it can be attached to. 87 88 set testpid [eval exec $binfile &] 89 exec sleep 2 90 if { [istarget "*-*-cygwin*"] } { 91 # testpid is the Cygwin PID, GDB uses the Windows PID, which might be 92 # different due to the way fork/exec works. 93 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] 94 } 95 96 # Verify that we cannot attach to nonsense. 97 98 set test "attach to nonsense is prohibited" 99 gdb_test_multiple "attach abc" "$test" { 100 -re "Illegal process-id: abc.*$gdb_prompt $" { 101 pass "$test" 102 } 103 -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" { 104 # Response expected from /proc-based systems. 105 pass "$test" 106 } 107 -re "Can't attach to process..*$gdb_prompt $" { 108 # Response expected on Cygwin 109 pass "$test" 110 } 111 -re "Attaching to.*$gdb_prompt $" { 112 fail "$test (bogus pid allowed)" 113 } 114 } 115 116 # Verify that we cannot attach to what appears to be a valid 117 # process ID, but is a process that doesn't exist. Traditionally, 118 # most systems didn't have a process with ID 0, so we take that as 119 # the default. However, there are a few exceptions. 120 121 set boguspid 0 122 if { [istarget "*-*-*bsd*"] } { 123 # In FreeBSD 5.0, PID 0 is used for "swapper". Use -1 instead 124 # (which should have the desired effect on any version of 125 # FreeBSD, and probably other *BSD's too). 126 set boguspid -1 127 } 128 set test "attach to nonexistent process is prohibited" 129 gdb_test_multiple "attach $boguspid" "$test" { 130 -re "Attaching to.*, process $boguspid.*No such process.*$gdb_prompt $" { 131 # Response expected on ptrace-based systems (i.e. HP-UX 10.20). 132 pass "$test" 133 } 134 -re "Attaching to.*, process $boguspid failed.*Hint.*$gdb_prompt $" { 135 # Response expected on ttrace-based systems (i.e. HP-UX 11.0). 136 pass "$test" 137 } 138 -re "Attaching to.*, process $boguspid.*denied.*$gdb_prompt $" { 139 pass "$test" 140 } 141 -re "Attaching to.*, process $boguspid.*not permitted.*$gdb_prompt $" { 142 pass "$test" 143 } 144 -re "Attaching to.*, process .*couldn't open /proc file.*$gdb_prompt $" { 145 # Response expected from /proc-based systems. 146 pass "$test" 147 } 148 -re "Can't attach to process..*$gdb_prompt $" { 149 # Response expected on Cygwin 150 pass "$test" 151 } 152 } 153 154 # Verify that we can attach to the process by first giving its 155 # executable name via the file command, and using attach with the 156 # process ID. 157 158 # (Actually, the test system appears to do this automatically for 159 # us. So, we must also be prepared to be asked if we want to 160 # discard an existing set of symbols.) 161 162 set test "set file, before attach1" 163 gdb_test_multiple "file $binfile" "$test" { 164 -re "Load new symbol table from.*y or n. $" { 165 gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \ 166 "$test (re-read)" 167 } 168 -re "Reading symbols from $escapedbinfile\.\.\.*done.*$gdb_prompt $" { 169 pass "$test" 170 } 171 } 172 173 set test "attach1, after setting file" 174 gdb_test_multiple "attach $testpid" "$test" { 175 -re "Attaching to program.*`?$escapedbinfile'?, process $testpid.*main.*at .*$srcfile:.*$gdb_prompt $" { 176 pass "$test" 177 } 178 -re "Attaching to program.*`?$escapedbinfile\.exe'?, process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" { 179 # Response expected on Cygwin 180 pass "$test" 181 } 182 } 183 184 # Verify that we can "see" the variable "should_exit" in the 185 # program, and that it is zero. 186 187 gdb_test "print should_exit" " = 0" "after attach1, print should_exit" 188 189 # Detach the process. 190 191 gdb_test "detach" \ 192 "Detaching from program: .*$escapedbinfile, process $testpid" \ 193 "attach1 detach" 194 195 # Wait a bit for gdb to finish detaching 196 197 exec sleep 5 198 199 # Purge the symbols from gdb's brain. (We want to be certain the 200 # next attach, which won't be preceded by a "file" command, is 201 # really getting the executable file without our help.) 202 203 set old_timeout $timeout 204 set timeout 15 205 set test "attach1, purging symbols after detach" 206 gdb_test_multiple "file" "$test" { 207 -re "No executable file now.*Discard symbol table.*y or n. $" { 208 gdb_test "y" "No symbol file now." "$test" 209 } 210 } 211 set timeout $old_timeout 212 213 # Verify that we can attach to the process just by giving the 214 # process ID. 215 216 set test "set file, before attach2" 217 gdb_test_multiple "attach $testpid" "$test" { 218 -re "Attaching to process $testpid.*Load new symbol table from \"$escapedbinfile\.exe\".*y or n. $" { 219 # On Cygwin, the DLL's symbol tables are loaded prior to the 220 # executable's symbol table. This in turn always results in 221 # asking the user for actually loading the symbol table of the 222 # executable. 223 gdb_test "y" "Reading symbols from $escapedbinfile\.\.\.*done." \ 224 "$test (reset file)" 225 } 226 -re "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*$gdb_prompt $" { 227 pass "$test" 228 } 229 } 230 231 # Verify that we can modify the variable "should_exit" in the 232 # program. 233 234 gdb_test "set should_exit=1" "" "after attach2, set should_exit" 235 236 # Verify that the modification really happened. 237 238 send_gdb "tbreak 19\n" 239 gdb_expect { 240 -re "Breakpoint .*at.*$srcfile, line 19.*$gdb_prompt $" { 241 pass "after attach2, set tbreak postloop" 242 } 243 -re "$gdb_prompt $" { 244 fail "after attach2, set tbreak postloop" 245 } 246 timeout { 247 fail "(timeout) after attach2, set tbreak postloop" 248 } 249 } 250 send_gdb "continue\n" 251 gdb_expect { 252 -re "main.*at.*$srcfile:19.*$gdb_prompt $" { 253 pass "after attach2, reach tbreak postloop" 254 } 255 -re "$gdb_prompt $" { 256 fail "after attach2, reach tbreak postloop" 257 } 258 timeout { 259 fail "(timeout) after attach2, reach tbreak postloop" 260 } 261 } 262 263 # Allow the test process to exit, to cleanup after ourselves. 264 265 gdb_test "continue" "Program exited normally." "after attach2, exit" 266 267 # Make sure we don't leave a process around to confuse 268 # the next test run (and prevent the compile by keeping 269 # the text file busy), in case the "set should_exit" didn't 270 # work. 271 272 remote_exec build "kill -9 ${testpid}" 273 274 # Start the program running and then wait for a bit, to be sure 275 # that it can be attached to. 276 277 set testpid [eval exec $binfile &] 278 exec sleep 2 279 if { [istarget "*-*-cygwin*"] } { 280 # testpid is the Cygwin PID, GDB uses the Windows PID, which might be 281 # different due to the way fork/exec works. 282 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] 283 } 284 285 # Verify that we can attach to the process, and find its a.out 286 # when we're cd'd to some directory that doesn't contain the 287 # a.out. (We use the source path set by the "dir" command.) 288 289 gdb_test "dir ${objdir}/${subdir}" "Source directories searched: .*" \ 290 "set source path" 291 292 gdb_test "cd /tmp" "Working directory /tmp." \ 293 "cd away from process working directory" 294 295 # Explicitly flush out any knowledge of the previous attachment. 296 297 set test "before attach3, flush symbols" 298 gdb_test_multiple "symbol" "$test" { 299 -re "Discard symbol table from.*y or n. $" { 300 gdb_test "y" "No symbol file now." \ 301 "$test" 302 } 303 -re "No symbol file now.*$gdb_prompt $" { 304 pass "$test" 305 } 306 } 307 308 gdb_test "exec" "No executable file now." \ 309 "before attach3, flush exec" 310 311 gdb_test "attach $testpid" \ 312 "Attaching to process $testpid.*Reading symbols from $escapedbinfile.*main.*at .*" \ 313 "attach when process' a.out not in cwd" 314 315 set test "after attach3, exit" 316 gdb_test_multiple "kill" "$test" { 317 -re "Kill the program being debugged.*y or n. $" { 318 gdb_test "y" "" "$test" 319 } 320 } 321 322 # Another "don't leave a process around" 323 remote_exec build "kill -9 ${testpid}" 324} 325 326proc do_call_attach_tests {} { 327 global gdb_prompt 328 global binfile2 329 330 # Start the program running and then wait for a bit, to be sure 331 # that it can be attached to. 332 333 set testpid [eval exec $binfile2 &] 334 exec sleep 2 335 if { [istarget "*-*-cygwin*"] } { 336 # testpid is the Cygwin PID, GDB uses the Windows PID, which might be 337 # different due to the way fork/exec works. 338 set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] 339 } 340 341 # Attach 342 343 gdb_test "file $binfile2" "" "force switch to gdb64, if necessary" 344 set test "attach call" 345 gdb_test_multiple "attach $testpid" "$test" { 346 -re "warning: reading register.*I.*O error.*$gdb_prompt $" { 347 fail "$test (read register error)" 348 } 349 -re "Attaching to.*process $testpid.*libc.*$gdb_prompt $" { 350 pass "$test" 351 } 352 -re "Attaching to.*process $testpid.*\[Switching to thread $testpid\..*\].*$gdb_prompt $" { 353 pass "$test" 354 } 355 } 356 357 # See if other registers are problems 358 359 set test "info other register" 360 gdb_test_multiple "i r r3" "$test" { 361 -re "warning: reading register.*$gdb_prompt $" { 362 fail "$test" 363 } 364 -re "r3.*$gdb_prompt $" { 365 pass "$test" 366 } 367 } 368 369 # Get rid of the process 370 371 gdb_test "p should_exit = 1" 372 gdb_test "c" "Program exited normally." 373 374 # Be paranoid 375 376 remote_exec build "kill -9 ${testpid}" 377} 378 379 380# Start with a fresh gdb 381 382gdb_exit 383gdb_start 384gdb_reinitialize_dir $srcdir/$subdir 385gdb_load ${binfile} 386 387# This is a test of gdb's ability to attach to a running process. 388 389do_attach_tests 390 391# Test attaching when the target is inside a system call 392 393gdb_exit 394gdb_start 395 396gdb_reinitialize_dir $srcdir/$subdir 397do_call_attach_tests 398 399return 0 400