# Copyright (C) 1992, 1994, 1997 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # Please email any bugs, comments, and/or additions to this file to: # bug-gdb@prep.ai.mit.edu # This file was written by Fred Fish. (fnf@cygnus.com) if $tracelevel then { strace $tracelevel } if { [skip_hp_tests] } then { continue } set prms_id 0 set bug_id 0 set testfile "watch-hp" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." } if [get_compiler_info ${binfile}] { return -1; } if { $gcc_compiled } then { continue } # Prepare for watchpoint tests by setting up two breakpoints and one # watchpoint. # # We use breakpoints at marker functions to get past all the startup code, # so we can get to the watchpoints in a reasonable amount of time from a # known starting point. # # For simplicity, so we always know how to reference specific breakpoints or # watchpoints by number, we expect a particular ordering and numbering of # each in the combined breakpoint/watchpoint table, as follows: # # Number What Where # 1 Breakpoint marker1() # 2 Breakpoint marker2() # 3 Watchpoint ival3 proc initialize {} { global gdb_prompt global hex global decimal global srcfile if [gdb_test "break marker1" "Breakpoint 1 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker1" ] { return 0; } if [gdb_test "break marker2" "Breakpoint 2 at $hex: file .*$srcfile, line $decimal.*" "set breakpoint at marker2" ] { return 0; } if [gdb_test "info break" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*" "info break in watchpoint.exp" ] { return 0; } # ??rehrauer: To fix DTS #CHFts23014, in which setting a watchpoint # before running can cause the inferior to croak on HP-UX 10.30 and # 11.0 for reasons as yet unknown, we've disabled the ability to set # watches without a running inferior. Verify the restriction. # send_gdb "watch ival3\n" gdb_expect { -re ".*can't do that without a running program; try \"break main\", \"run\" first.*$gdb_prompt $" { pass "set watchpoint on ival3" } -re ".*$gdb_prompt $" { fail "set watchpoint on ival3" } timeout { fail "set watchpoint on ival3 (timeout)" } } # if [gdb_test "watch ival3" ".*\[Ww\]atchpoint 3: ival3" "set watchpoint on ival3" ] { # return 0; # } # "info watch" is the same as "info break" # if [gdb_test "info watch" "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*\r\n3\[ \]*.*watchpoint.*ival3" "watchpoint found in watchpoint/breakpoint table" ] { # return 0; # } # After installing the watchpoint, we disable it until we are ready # to use it. This allows the test program to run at full speed until # we get to the first marker function. # if [gdb_test "disable 3" "disable 3\[\r\n\]+" "disable watchpoint" ] { # return 0; # } return 1 } # # Test simple watchpoint. # proc test_simple_watchpoint {} { global gdb_prompt global hex global decimal # Ensure that the watchpoint is disabled when we startup. # if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_simple_watchpoint" ] { # return 0; # } # Run until we get to the first marker function. gdb_run_cmd set timeout 600 gdb_expect { -re "Breakpoint 1, marker1 .*$gdb_prompt $" { pass "run to marker1 in test_simple_watchpoint" } -re ".*$gdb_prompt $" { fail "run to marker1 in test_simple_watchpoint" return } timeout { fail "run to marker1 in test_simple_watchpoint (timeout)" return } } #************************ # ??rehrauer: To fix DTS #CHFts23014, in which setting a watchpoint # before running can cause the inferior to croak on HP-UX 10.30 and # 11.0 for reasons as yet unknown, we've disabled the ability to set # watches without a running inferior. The following testpoints used # to be in [initialize]. # send_gdb "watch ival3\n" gdb_expect { -re ".*\[Ww\]atchpoint 3: ival3\r\n$gdb_prompt $" { pass "set watchpoint on ival3" } -re ".*$gdb_prompt $" { fail "set watchpoint on ival3" } timeout { fail "set watchpoint on ival3 (timeout)" } } # "info watch" is the same as "info break" send_gdb "info watch\n" gdb_expect { -re "1\[ \]*breakpoint.*marker1.*\r\n2\[ \]*breakpoint.*marker2.*\r\n3\[ \]*.*watchpoint.*ival3\r\n$gdb_prompt $" { pass "watchpoint found in watchpoint/breakpoint table" } -re ".*$gdb_prompt $" { fail "watchpoint found in watchpoint/breakpoint table" } timeout { fail "watchpoint found in watchpoint/breakpoint table" } } # After installing the watchpoint, we disable it until we are ready # to use it. This allows the test program to run at full speed until # we get to the first marker function. send_gdb "disable 3\n" gdb_expect { -re "disable 3\[\r\n\]+$gdb_prompt $" { pass "disable watchpoint" } -re ".*$gdb_prompt $" { fail "disable watchpoint" } timeout { fail "disable watchpoint (timeout)" } } #****** # After reaching the marker function, enable the watchpoint. if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "enable watchpoint" ] { return ; } gdb_test "break func1" "Breakpoint.*at.*" gdb_test "set \$func1_breakpoint_number = \$bpnum" "" gdb_test "continue" "Continuing.*Breakpoint \[0-9\]*, func1.*" \ "continue to breakpoint at func1" # Continue until the first change, from -1 to 0 send_gdb "cont\n" gdb_expect { -re "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count; ival4 = count;.*$gdb_prompt $" { pass "watchpoint hit, first time" } -re "Continuing.*Breakpoint.*func1.*$gdb_prompt $" { setup_xfail "m68*-*-*" 2597 fail "thought it hit breakpoint at func1 twice" gdb_test "delete \$func1_breakpoint_number" "" gdb_test "continue" "\ Continuing.*\[Ww\]atchpoint.*ival3.*Old value = -1.*New value = 0.*ival3 = count;" \ "watchpoint hit, first time" } -re ".*$gdb_prompt $" { fail "watchpoint hit, first time" ; return } timeout { fail "watchpoint hit, first time (timeout)" ; return } eof { fail "watchpoint hit, first time (eof)" ; return } } gdb_test "delete \$func1_breakpoint_number" "" # Continue until the next change, from 0 to 1. gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 0.*New value = 1.*ival3 = count; ival4 = count;.*" "watchpoint hit, second time" # Continue until the next change, from 1 to 2. gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 1.*New value = 2.*ival3 = count; ival4 = count;.*" "watchpoint hit, third time" # Continue until the next change, from 2 to 3. gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 2.*New value = 3.*ival3 = count; ival4 = count;.*" "watchpoint hit, fourth time" # Continue until the next change, from 3 to 4. # Note that this one is outside the loop. gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = 3.*New value = 4.*ival3 = count; ival4 = count;.*" "watchpoint hit, fifth time" # Continue until we hit the finishing marker function. # Make sure we hit no more watchpoints. gdb_test "cont" "Continuing.*Breakpoint.*marker2 \(\).*" \ "continue to marker2" # Disable the watchpoint so we run at full speed until we exit. if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "watchpoint disabled" ] { return ; } # Run until process exits. if [target_info exists gdb,noresults] { return } gdb_test "cont" "Continuing.*Program exited normally.*" \ "continue to exit in test_simple_watchpoint" } # Test disabling watchpoints. proc test_disabling_watchpoints {} { global gdb_prompt global binfile global srcfile global decimal global hex # Ensure that the watchpoint is disabled when we startup. if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint in test_disabling_watchpoints" ] { return 0; } # Run until we get to the first marker function. gdb_run_cmd set timeout 600 gdb_expect { -re "Breakpoint 1, marker1 .*$gdb_prompt $" { pass "run to marker1 in test_disabling_watchpoints" } -re ".*$gdb_prompt $" { fail "run to marker1 in test_disabling_watchpoints" return } timeout { fail "run to marker1 in test_disabling_watchpoints (timeout)" return } } # After reaching the marker function, enable the watchpoint. if [gdb_test "enable 3" "^enable 3\[\r\n\]+" "watchpoint enabled" ] { return ; } # Continue until the first change, from -1 to 0 # Don't check the old value, because on VxWorks the variable value # will not have been reinitialized. gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ival3.*Old value = .*New value = 0.*ival3 = count; ival4 = count;.*" "watchpoint hit in test_disabling_watchpoints, first time" # Continue until the next change, from 0 to 1. 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" # Disable the watchpoint but leave breakpoints if [gdb_test "disable 3" "^disable 3\[\r\n\]+" "disable watchpoint #2 in test_disabling_watchpoints" ] { return 0; } # Check watchpoint list, looking for the entry that confirms the # watchpoint is disabled. gdb_test "info watchpoints" "3\[ \]*.*watchpoint\[ \]*keep\[ \]*n\[ \]*ival3\r\n.*" "watchpoint disabled in table" # Continue until we hit the finishing marker function. # Make sure we hit no more watchpoints. gdb_test "cont" "Continuing.*Breakpoint.*marker2 \\(\\).*" \ "disabled watchpoint skipped" if [target_info exists gdb,noresults] { return } gdb_test "cont" "Continuing.*Program exited normally.*" \ "continue to exit in test_disabling_watchpoints" } # Test stepping and other mundane operations with watchpoints enabled proc test_stepping {} { global gdb_prompt if [runto marker1] then { gdb_test "watch ival2" ".*\[Ww\]atchpoint \[0-9\]*: ival2" # Well, let's not be too mundane. It should be a *bit* of a challenge gdb_test "break func2 if 0" "Breakpoint.*at.*" gdb_test "p \$func2_breakpoint_number = \$bpnum" " = .*" # The HPPA has a problem here if it's not using hardware watchpoints if {[ istarget "hppa*-*-*" ] && ![ istarget "hppa*-*-*bsd*" ]} then { # Don't actually try doing the call, if we do we can't continue. setup_xfail "*-*-*" fail "calling function with watchpoint enabled" } else { # The problem is that GDB confuses stepping through the call # dummy with hitting the breakpoint at the end of the call dummy. # Will be fixed once all architectures define # CALL_DUMMY_BREAKPOINT_OFFSET. setup_xfail "*-*-*" # This doesn't occur if the call dummy starts with a call, # because we are out of the dummy by the first time the inferior # stops. clear_xfail "d10v*-*-*" clear_xfail "m68*-*-*" clear_xfail "i*86*-*-*" clear_xfail "vax-*-*" # The following architectures define CALL_DUMMY_BREAKPOINT_OFFSET. clear_xfail "alpha-*-*" clear_xfail "mips*-*-*" clear_xfail "sparc-*-*" clear_xfail "hppa*-*-*bsd*" # It works with the generic inferior function calling code too. clear_xfail "mn10200*-*-*" clear_xfail "mn10300*-*-*" gdb_test "p func1 ()" "= 73" \ "calling function with watchpoint enabled" } # # "finish" brings us back to main. # On some targets (e.g. alpha) gdb will stop from the finish in midline # of the marker1 call. This is due to register restoring code on # the alpha and might be caused by stack adjustment instructions # on other targets. In this case we will step once more. # send_gdb "finish\n" gdb_expect { -re "Run.*exit from.*marker1.* at" { } default { fail "finish from marker1" ; return } } gdb_expect { -re "marker1 \\(\\);.*$gdb_prompt $" { send_gdb "step\n" exp_continue } -re "func1 \\(\\);.*$gdb_prompt $" { pass "finish from marker1" } -re ".*$gdb_prompt $" { fail "finish from marker1" } default { fail "finish from marker1" ; return } } gdb_test "next" "for \\(count = 0.*" "next to `for' in watchpoint.exp" # Now test that "until" works. It's a bit tricky to test # "until", because compilers don't always arrange the code # exactly the same way, and we might get slightly different # sequences of statements. But the following should be true # (if not it is a compiler or a debugger bug): The user who # does "until" at every statement of a loop should end up # stepping through the loop once, and the debugger should not # stop for any of the remaining iterations. gdb_test "until" "ival1 = count.*" "until to ival1 assignment" gdb_test "until" "ival3 = count.*" "until to ival3 assignment" send_gdb "until\n" gdb_expect { -re "(for \\(count = 0|\}).*$gdb_prompt $" { gdb_test "until" "ival1 = count; /. Outside loop ./" \ "until out of loop" } -re "ival1 = count; /. Outside loop ./.*$gdb_prompt $" { pass "until out of loop" } -re ".*$gdb_prompt $" { fail "until out of loop" } default { fail "until out of loop" ; return } } gdb_test "step" "ival2 = count.*" "step to ival2 assignment" } } # Test stepping and other mundane operations with watchpoints enabled proc test_watchpoint_triggered_in_syscall {} { global gdb_prompt if [target_info exists gdb,noinferiorio] { verbose "Skipping test_watchpoint_triggered_in_syscall due to noinferiorio" return } # Run until we get to the first marker function. set x 0 set y 0 set testname "Watch buffer passed to read syscall" if [runto marker2] then { gdb_test "watch buf\[0\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[0\\\]" gdb_test "watch buf\[1\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[1\\\]" gdb_test "watch buf\[2\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[2\\\]" gdb_test "watch buf\[3\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[3\\\]" gdb_test "watch buf\[4\]" ".*\[Ww\]atchpoint \[0-9\]*: buf\\\[4\\\]" gdb_test "break marker4" ".*Breakpoint.*" gdb_test "set doread = 1" "" # If we send_gdb "123\n" before gdb has switched the tty, then it goes # to gdb, not the inferior, and we lose. So that is why we have # watchpoint.c prompt us, so we can wait for that prompt. send_gdb "continue\n"; gdb_expect { -re "Continuing\\.\r\ntype stuff for buf now:" { pass "continue to read" } default { fail "continue to read"; return ; } } send_gdb "123\n" gdb_expect { -re ".*\[Ww\]atchpoint.*buf\\\[0\\\].*Old value = 0.*New value = 49\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } -re ".*\[Ww\]atchpoint.*buf\\\[1\\\].*Old value = 0.*New value = 50\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } -re ".*\[Ww\]atchpoint.*buf\\\[2\\\].*Old value = 0.*New value = 51\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } -re ".*\[Ww\]atchpoint.*buf\\\[3\\\].*Old value = 0.*New value = 10\[^\n\]*\n" { set x [expr $x+1] ; exp_continue } -re ".*$gdb_prompt $" { pass "sent 123" } timeout { fail "sent 123 (timeout)" } } # Examine the values in buf to see how many watchpoints we # should have printed. send_gdb "print buf\[0\]\n" gdb_expect { -re ".*= 49.*$gdb_prompt $" { set y [expr $y+1]; pass "print buf\[0\]"} -re ".*= 0.*$gdb_prompt $" { pass "print buf\[0\]"} -re ".*$gdb_prompt $" { fail "print buf\[0\]"} default { fail "print buf\[0\]"} } send_gdb "print buf\[1\]\n" gdb_expect { -re ".*= 50.*$gdb_prompt $" { set y [expr $y+1]; pass "print buf\[1\]"} -re ".*= 0.*$gdb_prompt $" { pass "print buf\[1\]"} -re ".*$gdb_prompt $" { fail "print buf\[1\]"} default { fail "print buf\[1\]"} } send_gdb "print buf\[2\]\n" gdb_expect { -re ".*= 51.*$gdb_prompt $" { set y [expr $y+1]; pass "print buf\[2\]"} -re ".*= 0.*$gdb_prompt $" { pass "print buf\[2\]"} -re ".*$gdb_prompt $" { fail "print buf\[2\]"} default { fail "print buf\[2\]"} } send_gdb "print buf\[3\]\n" gdb_expect { -re ".*= 10.*$gdb_prompt $" { set y [expr $y+1]; pass "print buf\[3\]"} -re ".*= 0.*$gdb_prompt $" { pass "print buf\[3\]"} -re ".*$gdb_prompt $" { fail "print buf\[3\]" } default { fail "print buf\[3\]" } } # Did we find what we were looking for? If not, flunk it. if [expr $x==$y] then { pass $testname } else { fail "$testname (only triggered $x watchpoints, expected $y)"} # Continue until we hit the finishing marker function. # Make sure we hit no more watchpoints. gdb_test "cont" "Continuing.*Breakpoint.*marker4 \\(\\).*" \ "continue to marker4" # Disable everything so we can finish the program at full speed gdb_test "disable" "" "disable in test_watchpoint_triggered_in_syscall" if [target_info exists gdb,noresults] { return } gdb_test "cont" "Continuing.*Program exited normally.*" \ "continue to exit in test_watchpoint_triggered_in_syscall" } } # Do a simple test of of watching through a pointer when the pointer # itself changes. Should add some more complicated stuff here. proc test_complex_watchpoint {} { global gdb_prompt if [runto marker4] then { gdb_test "watch ptr1->val" ".*\[Ww\]atchpoint \[0-9\]*: ptr1->val" gdb_test "break marker5" ".*Breakpoint.*" gdb_test "cont" "Continuing.*\[Ww\]atchpoint.*ptr1->val.*Old value = 1.*New value = 2.*" "Test complex watchpoint" # Continue until we hit the marker5 function. # Make sure we hit no more watchpoints. gdb_test "cont" "Continuing.*Breakpoint.*marker5 \\(\\).*" \ "did not trigger wrong watchpoint" #******************** # Test watches of things declared locally in a function. # In particular, test that a watch of stack-based things # is deleted when the stack-based things go out of scope. # gdb_test "disable" "" "disable in test_complex_watchpoint" gdb_test "break marker6" ".*Breakpoint.*" gdb_test "cont" "Continuing.*Breakpoint.*marker6 \\(\\).*" \ "continue to marker6" gdb_test "break func2" ".*Breakpoint.*" gdb_test "cont" "Continuing.*func2.*" # Test a watch of a single stack-based variable, whose scope # is the function we're now in. This should auto-delete when # execution exits the scope of the watchpoint. # gdb_test "watch local_a" ".*\[Ww\]atchpoint \[0-9\]*: local_a" "set local watch" gdb_test "cont" "\[Ww\]atchpoint.*local_a.*" "trigger local watch" gdb_test "cont" "Continuing.*Watchpoint .* deleted because the program has left the block in.*which its expression is valid.*" "self-delete local watch" # after func2 returned, gdb stopped and deleted the watchpoint # we're now in main, let's get to func2 gdb_test "cont" "Continuing.*func2.*" # We should be in "func2" again now. Test a watch of an # expression which includes both a stack-based local and # something whose scope is larger than this invocation # of "func2". This should also auto-delete. # gdb_test "watch local_a + ival5" ".*\[Ww\]atchpoint \[0-9\]*: local_a . ival5" \ "set partially local watch" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ "trigger1 partially local watch" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_a . ival5.*" \ "trigger2 partially local watch" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ "self-delete partially local watch" # after func2 returned, gdb stopped and deleted the watchpoint # we're now in main, let's get to func2 gdb_test "cont" "Continuing.*func2.*" # We should be in "func2" again now. Test a watch of a # static (non-stack-based) local. Since this has scope # across any invocations of "func2", it should not auto- # delete. # gdb_test "watch static_b" ".*\[Ww\]atchpoint \[0-9\]*: static_b" \ "set static local watch" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: static_b.*" \ "trigger static local watch" gdb_test "cont" "Continuing.*marker6 \\(\\).*" \ "continue after trigger static local watch" gdb_test "info break" ".*watchpoint.*static_b.*" \ "static local watch did not self-delete" # We should be in "recurser" now. Test a watch of a stack- # based local. Symbols mentioned in a watchpoint are bound # at watchpoint-creation. Thus, a watch of a stack-based # local to a recursing function should be bound only to that # one invocation, and should not trigger for other invocations. # gdb_test "tbreak recurser" ".*Breakpoint.*" gdb_test "cont" "Continuing.*recurser.*" gdb_test "watch local_x" ".*\[Ww\]atchpoint \[0-9\]*: local_x" \ "set local watch in recursive call" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .*: local_x.*New value = 2.*" \ "trigger local watch in recursive call" gdb_test "cont" "Continuing.*\[Ww\]atchpoint .* deleted because the program has left the block in.*which its expression is valid.*" \ "self-delete local watch in recursive call" #****************** # Disable everything so we can finish the program at full speed gdb_test "disable" "" "disable in test_complex_watchpoint" if [target_info exists gdb,noresults] { return } gdb_test "cont" "Continuing.*Program exited normally.*" \ "continue to exit in test_complex_watchpoint" } } # Start with a fresh gdb. gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load $binfile set timeout 600 verbose "Timeout now 600 sec.\n" if [initialize] then { test_simple_watchpoint # The IDT/sim monitor only has 8 (!) open files, of which it uses # 4 (!). So we have to make sure one program exits before # starting another one. if [istarget "mips-idt-*"] then { gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load $binfile initialize } test_disabling_watchpoints # See above. if [istarget "mips-idt-*"] then { gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load $binfile initialize } if ![target_info exists gdb,cannot_call_functions] { test_stepping # See above. if [istarget "mips-idt-*"] then { gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load $binfile initialize } } # Only enabled for some targets merely because it has not been tested # elsewhere. # On sparc-sun-sunos4.1.3, GDB was running all the way to the marker4 # breakpoint before stopping for the watchpoint. I don't know why. if {[istarget "hppa*-*-*"]} then { test_watchpoint_triggered_in_syscall } # See above. if [istarget "mips-idt-*"] then { gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load $binfile initialize } # Only enabled for some targets merely because it has not been tested # elsewhere. if {[istarget "hppa*-*-*"] || \ [istarget "sparc*-*-sunos*"] || \ [istarget "m32r-*-*"]} then { test_complex_watchpoint #*************** } # Verify that a user can force GDB to use "slow" watchpoints. # (This proves rather little on kernels that don't support # fast watchpoints, but still...) # if ![runto_main] then { fail "watch tests suppressed" } send_gdb "set can-use-hw-watchpoints 0\n" gdb_expect { -re "$gdb_prompt $"\ {pass "disable fast watches"} timeout {fail "(timeout) disable fast watches"} } send_gdb "show can-use-hw-watchpoints\n" gdb_expect { -re "Debugger's willingness to use watchpoint hardware is 0.*$gdb_prompt $"\ {pass "show disable fast watches"} -re "$gdb_prompt $"\ {fail "show disable fast watches"} timeout {fail "(timeout) show disable fast watches"} } send_gdb "watch ival3 if count > 1\n" gdb_expect { -re "Watchpoint \[0-9\]*: ival3.*$gdb_prompt $"\ {pass "set slow conditional watch"} -re "$gdb_prompt $"\ {fail "set slow conditional watch"} timeout {fail "(timeout) set slow conditional watch"} } send_gdb "continue\n" gdb_expect { -re "Watchpoint \[0-9\]*: ival3.*Old value = 1.*New value = 2.*$gdb_prompt $"\ {pass "trigger slow conditional watch"} -re "$gdb_prompt $"\ {fail "trigger slow conditional watch"} timeout {fail "(timeout) trigger slow conditional watch"} } # We've explicitly disabled hardware watches. Verify that GDB # # send_gdb "rwatch ival3\n" gdb_expect { -re "Expression cannot be implemented with read/access watchpoint..*$gdb_prompt $"\ {pass "rwatch disallowed when can-set-hw-watchpoints cleared"} -re "$gdb_prompt $"\ {fail "rwatch disallowed when can-set-hw-watchpoints cleared"} timeout {fail "(timeout) rwatch disallowed when can-use-hw-watchpoints cleared"} } # Read- and access watchpoints are unsupported on HP-UX. Verify # that GDB gracefully responds to requests to create them. # if [istarget "hppa*-*-hpux*"] then { send_gdb "set can-use-hw-watchpoints 1\n" gdb_expect { -re "$gdb_prompt $"\ {pass "enable fast watches"} timeout {fail "(timeout) enable fast watches"} } send_gdb "rwatch ival3\n" gdb_expect { -re "Target does not have this type of hardware watchpoint support.*$gdb_prompt $"\ {pass "read watches disallowed"} -re "$gdb_prompt $"\ {fail "read watches disallowed"} timeout {fail "(timeout) read watches disallowed"} } send_gdb "awatch ival3\n" gdb_expect { -re "Target does not have this type of hardware watchpoint support.*$gdb_prompt $"\ {pass "access watches disallowed"} -re "$gdb_prompt $"\ {fail "access watches disallowed"} timeout {fail "(timeout) access watches disallowed"} } #*************** } }