# Copyright 1988, 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, # 2000 # 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 Rob Savoye. (rob@cygnus.com) if $tracelevel then { strace $tracelevel } # # test running programs # set prms_id 0 set bug_id 0 set testfile "break" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } { gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." } if [get_compiler_info ${binfile}] { return -1 } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfile} if [target_info exists gdb_stub] { gdb_step_for_stub; } # # test simple breakpoint setting commands # # Test deleting all breakpoints when there are none installed, # GDB should not prompt for confirmation. # Note that gdb-init.exp provides a "delete_breakpoints" proc # for general use elsewhere. send_gdb "delete breakpoints\n" gdb_expect { -re "Delete all breakpoints.*$" { send_gdb "y\n" gdb_expect { -re "$gdb_prompt $" { fail "Delete all breakpoints when none (unexpected prompt)" } timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" } } } -re ".*$gdb_prompt $" { pass "Delete all breakpoints when none" } timeout { fail "Delete all breakpoints when none (timeout)" } } # # test break at function # gdb_test "break main" \ "Breakpoint.*at.* file .*$srcfile, line.*" \ "breakpoint function" # # test break at function in file # gdb_test "break $srcfile:factorial" \ "Breakpoint.*at.* file .*$srcfile, line.*" \ "breakpoint function in file" # # test break at line number # # Note that the default source file is the last one whose source text # was printed. For native debugging, before we've executed the # program, this is the file containing main, but for remote debugging, # it's wherever the processor was stopped when we connected to the # board. So, to be sure, we do a list command. # gdb_test "list main" \ ".*main \\(argc, argv, envp\\).*" \ "use `list' to establish default source file" gdb_test "break 79" \ "Breakpoint.*at.* file .*$srcfile, line 79\\." \ "breakpoint line number" # # test duplicate breakpoint # gdb_test "break 79" \ "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line 79\\." \ "breakpoint duplicate" # # test break at line number in file # gdb_test "break $srcfile:85" \ "Breakpoint.*at.* file .*$srcfile, line 85\\." \ "breakpoint line number in file" # # Test putting a break at the start of a multi-line if conditional. # Verify the breakpoint was put at the start of the conditional. # gdb_test "break multi_line_if_conditional" \ "Breakpoint.*at.* file .*$srcfile, line 109\\." \ "breakpoint at start of multi line if conditional" gdb_test "break multi_line_while_conditional" \ "Breakpoint.*at.* file .*$srcfile, line 124\\." \ "breakpoint at start of multi line while conditional" # # check to see what breakpoints are set # if [target_info exists gdb_stub] { set main_line 72 } else { set main_line 75 } if {$hp_aCC_compiler} { set proto "\\(int\\)" } else { set proto "" } gdb_test "info break" \ "Num Type\[ \]+Disp Enb Address\[ \]+What.* \[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$main_line.* \[0-9\]+\[\t \]+breakpoint keep y.* in factorial$proto at .*$srcfile:96.* \[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:79.* \[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:79.* \[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:85.* \[0-9\]+\[\t \]+breakpoint keep y.* in multi_line_if_conditional at .*$srcfile:109.* \[0-9\]+\[\t \]+breakpoint keep y.* in multi_line_while_conditional at .*$srcfile:124" \ "breakpoint info" # FIXME: The rest of this test doesn't work with anything that can't # handle arguments. # Huh? There doesn't *appear* to be anything that passes arguments # below. if [istarget "mips-idt-*"] then { return } # # run until the breakpoint at main is hit. For non-stubs-using targets. # if ![target_info exists use_gdb_stub] { if [istarget "*-*-vxworks*"] then { send_gdb "run vxmain \"2\"\n" set timeout 120 verbose "Timeout is now $timeout seconds" 2 } else { send_gdb "run\n" } gdb_expect { -re "The program .* has been started already.*y or n. $" { send_gdb "y\n" exp_continue } -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:75.*75\[\t \]+if .argc.* \{.*$gdb_prompt $"\ { pass "run until function breakpoint" } -re ".*$gdb_prompt $" { fail "run until function breakpoint" } timeout { fail "run until function breakpoint (timeout)" } } } else { if ![target_info exists gdb_stub] { gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:75.*75\[\t \]+if .argc.*\{.*" "stub continue" } } # # run until the breakpoint at a line number # gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:79.*79\[\t \]+printf.*factorial.*" \ "run until breakpoint set at a line number" # # Run until the breakpoint set in a function in a file # for {set i 6} {$i >= 1} {incr i -1} { gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:96.*96\[\t \]+.*if .value > 1. \{.*" \ "run until file:function($i) breakpoint" } # # run until the file:function breakpoint at a line number in a file # gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:85.*85\[\t \]+argc = \\(argc == 12345\\);.*" \ "run until file:linenum breakpoint" # Test break at offset +1 gdb_test "break +1" \ "Breakpoint.*at.* file .*$srcfile, line 86\\." \ "breakpoint offset +1" # Check to see if breakpoint is hit when stepped onto gdb_test "step" \ ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:86.*86\[\t \]+return argc;" \ "step onto breakpoint" # # delete all breakpoints so we can start over, course this can be a test too # delete_breakpoints # # test temporary breakpoint at function # gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function" # # test break at function in file # gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \ "Temporary breakpoint function in file" # # test break at line number # send_gdb "tbreak 79\n" gdb_expect { -re "Breakpoint.*at.* file .*$srcfile, line 79.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" } -re ".*$gdb_prompt $" { pass "Temporary breakpoint line number #1" } timeout { fail "breakpoint line number #1 (timeout)" } } gdb_test "tbreak 75" "Breakpoint.*at.* file .*$srcfile, line 75.*" "Temporary breakpoint line number #2" # # test break at line number in file # send_gdb "tbreak $srcfile:85\n" gdb_expect { -re "Breakpoint.*at.* file .*$srcfile, line 85.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" } -re ".*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" } timeout { fail "Temporary breakpoint line number in file #1 (timeout)" } } gdb_test "tbreak $srcfile:81" "Breakpoint.*at.* file .*$srcfile, line 81.*" "Temporary breakpoint line number in file #2" # # check to see what breakpoints are set (temporary this time) # gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in factorial$proto at .*$srcfile:96.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:79.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:75.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:85.*\[\r\n\] \[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:81.*" \ "Temporary breakpoint info" #*********** # Verify that catchpoints for fork, vfork and exec don't trigger # inappropriately. (There are no calls to those system functions # in this test program.) # if ![runto_main] then { fail "break tests suppressed" } send_gdb "catch\n" gdb_expect { -re "Catch requires an event name.*$gdb_prompt $"\ {pass "catch requires an event name"} -re "$gdb_prompt $"\ {fail "catch requires an event name"} timeout {fail "(timeout) catch requires an event name"} } set name "set catch fork, never expected to trigger" send_gdb "catch fork\n" gdb_expect { -re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $" {pass $name} -re "Catch of fork not yet implemented.*$gdb_prompt $" {pass $name} -re "$gdb_prompt $" {fail $name} timeout {fail "(timeout) $name"} } set name "set catch vfork, never expected to trigger" send_gdb "catch vfork\n" # If we are on HP-UX 10.20, we expect an error message to be # printed if we type "catch vfork" at the gdb gdb_prompt. This is # because on HP-UX 10.20, we cannot catch vfork events. if [istarget "hppa*-hp-hpux10.20"] then { gdb_expect { -re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $" {pass $name} -re "$gdb_prompt $" {fail $name} timeout {fail "(timeout) $name"} } } else { gdb_expect { -re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $" {pass $name} -re "Catch of vfork not yet implemented.*$gdb_prompt $" {pass $name} -re "$gdb_prompt $" {fail $name} timeout {fail "(timeout) $name"} } } set name "set catch exec, never expected to trigger" send_gdb "catch exec\n" gdb_expect { -re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $" {pass $name} -re "Catch of exec not yet implemented.*$gdb_prompt $" {pass $name} -re "$gdb_prompt $" {fail $name} timeout {fail "(timeout) $name"} } # Verify that "until " works. (This is really just syntactic # sugar for "tbreak ; continue".) # send_gdb "until 79\n" gdb_expect { -re "main .* at .*:79.*$gdb_prompt $"\ {pass "until 79"} -re "$gdb_prompt $"\ {fail "until 79"} timeout {fail "(timeout) until 79"} } # Verify that a malformed "until" is gracefully caught. # send_gdb "until 80 then stop\n" gdb_expect { -re "Junk at end of arguments..*$gdb_prompt $"\ {pass "malformed until"} -re "$gdb_prompt $"\ {fail "malformed until"} timeout {fail "(timeout) malformed until"} } # Verify that GDB responds gracefully when asked to set a breakpoint # on a nonexistent source line. # send_gdb "break 999\n" gdb_expect { -re "No line 999 in file .*$gdb_prompt $"\ {pass "break on non-existent source line"} -re "$gdb_prompt $"\ {fail "break on non-existent source line"} timeout {fail "(timeout) break on non-existent source line"} } # Verify that GDB allows one to just say "break", which is treated # as the "default" breakpoint. Note that GDB gets cute when printing # the informational message about other breakpoints at the same # location. We'll hit that bird with this stone too. # send_gdb "break\n" gdb_expect { -re "Breakpoint \[0-9\]*.*$gdb_prompt $"\ {pass "break on default location, 1st time"} -re "$gdb_prompt $"\ {fail "break on default location, 1st time"} timeout {fail "(timeout) break on default location, 1st time"} } send_gdb "break\n" gdb_expect { -re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\ {pass "break on default location, 2nd time"} -re "$gdb_prompt $"\ {fail "break on default location, 2nd time"} timeout {fail "(timeout) break on default location, 2nd time"} } send_gdb "break\n" gdb_expect { -re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\ {pass "break on default location, 3rd time"} -re "$gdb_prompt $"\ {fail "break on default location, 3rd time"} timeout {fail "(timeout) break on default location, 3rd time"} } send_gdb "break\n" gdb_expect { -re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\ {pass "break on default location, 4th time"} -re "$gdb_prompt $"\ {fail "break on default location, 4th time"} timeout {fail "(timeout) break on default location, 4th time"} } # Verify that a "silent" breakpoint can be set, and that GDB is indeed # "silent" about its triggering. # if ![runto_main] then { fail "break tests suppressed" } send_gdb "break 79\n" gdb_expect { -re "Breakpoint (\[0-9\]*) at .*, line 79.*$gdb_prompt $"\ {pass "set to-be-silent break 79"} -re "$gdb_prompt $"\ {fail "set to-be-silent break 79"} timeout {fail "(timeout) set to-be-silent break 79"} } send_gdb "commands $expect_out(1,string)\n" send_gdb "silent\n" send_gdb "end\n" gdb_expect { -re ".*$gdb_prompt $"\ {pass "set silent break 79"} timeout {fail "(timeout) set silent break 79"} } send_gdb "info break $expect_out(1,string)\n" gdb_expect { -re "\[0-9\]*\[ \t\]*breakpoint.*:79\r\n\[ \t\]*silent.*$gdb_prompt $"\ {pass "info silent break 79"} -re "$gdb_prompt $"\ {fail "info silent break 79"} timeout {fail "(timeout) info silent break 79"} } send_gdb "continue\n" gdb_expect { -re "Continuing.\r\n$gdb_prompt $"\ {pass "hit silent break 79"} -re "$gdb_prompt $"\ {fail "hit silent break 79"} timeout {fail "(timeout) hit silent break 79"} } send_gdb "bt\n" gdb_expect { -re "#0 main .* at .*:79.*$gdb_prompt $"\ {pass "stopped for silent break 79"} -re "$gdb_prompt $"\ {fail "stopped for silent break 79"} timeout {fail "(timeout) stopped for silent break 79"} } # Verify that GDB can at least parse a breakpoint with the # "thread" keyword. (We won't attempt to test here that a # thread-specific breakpoint really triggers appropriately. # The gdb.threads subdirectory contains tests for that.) # send_gdb "break 80 thread 999\n" gdb_expect { -re "Unknown thread 999.*$gdb_prompt $"\ {pass "thread-specific breakpoint on non-existent thread disallowed"} -re "$gdb_prompt $"\ {fail "thread-specific breakpoint on non-existent thread disallowed"} timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"} } send_gdb "break 80 thread foo\n" gdb_expect { -re "Junk after thread keyword..*$gdb_prompt $"\ {pass "thread-specific breakpoint on bogus thread ID disallowed"} -re "$gdb_prompt $"\ {fail "thread-specific breakpoint on bogus thread ID disallowed"} timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"} } # Verify that GDB responds gracefully to a breakpoint command with # trailing garbage. # send_gdb "break 80 foo\n" gdb_expect { -re "Junk at end of arguments..*$gdb_prompt $"\ {pass "breakpoint with trailing garbage disallowed"} -re "$gdb_prompt $"\ {fail "breakpoint with trailing garbage disallowed"} timeout {fail "(timeout) breakpoint with trailing garbage disallowed"} } # Verify that GDB responds gracefully to a "clear" command that has # no matching breakpoint. (First, get us off the current source line, # which we know has a breakpoint.) # send_gdb "next\n" gdb_expect { -re ".*$gdb_prompt $"\ {pass "step over breakpoint"} timeout {fail "(timeout) step over breakpoint"} } send_gdb "clear 81\n" gdb_expect { -re "No breakpoint at 81..*$gdb_prompt $"\ {pass "clear line has no breakpoint disallowed"} -re "$gdb_prompt $"\ {fail "clear line has no breakpoint disallowed"} timeout {fail "(timeout) clear line has no breakpoint disallowed"} } send_gdb "clear\n" gdb_expect { -re "No breakpoint at this line..*$gdb_prompt $"\ {pass "clear current line has no breakpoint disallowed"} -re "$gdb_prompt $"\ {fail "clear current line has no breakpoint disallowed"} timeout {fail "(timeout) clear current line has no breakpoint disallowed"} } # Verify that we can set and clear multiple breakpoints. # # We don't test that it deletes the correct breakpoints. We do at # least test that it deletes more than one breakpoint. # gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1" gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2" gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*} # Verify that a breakpoint can be set via a convenience variable. # send_gdb "set \$foo=81\n" gdb_expect { -re "$gdb_prompt $"\ {pass "set convenience variable \$foo to 81"} timeout {fail "(timeout) set convenience variable \$foo to 81"} } send_gdb "break \$foo\n" gdb_expect { -re "Breakpoint (\[0-9\]*) at .*, line 81.*$gdb_prompt $"\ {pass "set breakpoint via convenience variable"} -re "$gdb_prompt $"\ {fail "set breakpoint via convenience variable"} timeout {fail "(timeout) set breakpoint via convenience variable"} } # Verify that GDB responds gracefully to an attempt to set a # breakpoint via a convenience variable whose type is not integer. # send_gdb "set \$foo=81.5\n" gdb_expect { -re "$gdb_prompt $"\ {pass "set convenience variable \$foo to 81.5"} timeout {fail "(timeout) set convenience variable \$foo to 81.5"} } send_gdb "break \$foo\n" gdb_expect { -re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\ {pass "set breakpoint via non-integer convenience variable disallowed"} -re "$gdb_prompt $"\ {fail "set breakpoint via non-integer convenience variable disallowed"} timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"} } # Verify that we can set and trigger a breakpoint in a user-called function. # send_gdb "break marker2\n" gdb_expect { -re "Breakpoint (\[0-9\]*) at .*, line 4\[49\].*$gdb_prompt $"\ {pass "set breakpoint on to-be-called function"} -re "$gdb_prompt $"\ {fail "set breakpoint on to-be-called function"} timeout {fail "(timeout) set breakpoint on to-be-called function"} } send_gdb "print marker2(99)\n" gdb_expect { -re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\ {pass "hit breakpoint on called function"} -re "$gdb_prompt $"\ {fail "hit breakpoint on called function"} timeout {fail "(timeout) hit breakpoint on called function"} } # As long as we're stopped (breakpointed) in a called function, # verify that we can successfully backtrace & such from here. # # In this and the following test, the _sr4export check apparently is needed # for hppa*-*-hpux. # send_gdb "bt\n" gdb_expect { -re "#0\[ \t\]*($hex in )?marker2.*:4\[49\]\r\n#1.*_sr4export.*$gdb_prompt $"\ {pass "backtrace while in called function"} -re "#0\[ \t\]*($hex in )?marker2.*:4\[49\]\r\n#1.*function called from gdb.*$gdb_prompt $"\ {pass "backtrace while in called function"} -re "$gdb_prompt $"\ {fail "backtrace while in called function"} timeout {fail "(timeout) backtrace while in called function"} } # Return from the called function. For remote targets, it's important to do # this before runto_main, which otherwise may silently stop on the dummy # breakpoint inserted by GDB at the program's entry point. # send_gdb "finish\n" gdb_expect { -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.* in _sr4export.*$gdb_prompt $"\ {pass "finish from called function"} -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.*function called from gdb.*$gdb_prompt $"\ {pass "finish from called function"} -re "Run till exit from .*marker2.* at .*4\[49\]\r\n.*Value returned.*$gdb_prompt $"\ {pass "finish from called function"} -re "$gdb_prompt $"\ {fail "finish from called function"} timeout {fail "(timeout) finish from called function"} } # Verify that GDB responds gracefully to a "finish" command with # arguments. # if ![runto_main] then { fail "break tests suppressed" } send_gdb "finish 123\n" gdb_expect { -re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\ {pass "finish with arguments disallowed"} -re "$gdb_prompt $"\ {fail "finish with arguments disallowed"} timeout {fail "(timeout) finish with arguments disallowed"} } # Verify that GDB responds gracefully to a request to "finish" from # the outermost frame. On a stub that never exits, this will just # run to the stubs routine, so we don't get this error... Thus the # second condition. # send_gdb "finish\n" gdb_expect { -re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\ {pass "finish from outermost frame disallowed"} -re "Run till exit from.*\r\n$gdb_prompt $" { pass "finish from outermost frame disallowed" } -re "$gdb_prompt $"\ {fail "finish from outermost frame disallowed"} timeout {fail "(timeout) finish from outermost frame disallowed"} } # Verify that we can explicitly ask GDB to stop on all shared library # events, and that it does so. # if [istarget "hppa*-*-hpux*"] then { if ![runto_main] then { fail "break tests suppressed" } send_gdb "set stop-on-solib-events 1\n" gdb_expect { -re "$gdb_prompt $"\ {pass "set stop-on-solib-events"} timeout {fail "(timeout) set stop-on-solib-events"} } send_gdb "run\n" gdb_expect { -re ".*Start it from the beginning.*y or n. $"\ {send_gdb "y\n" gdb_expect { -re ".*Stopped due to shared library event.*$gdb_prompt $"\ {pass "triggered stop-on-solib-events"} -re "$gdb_prompt $"\ {fail "triggered stop-on-solib-events"} timeout {fail "(timeout) triggered stop-on-solib-events"} } } -re "$gdb_prompt $"\ {fail "rerun for stop-on-solib-events"} timeout {fail "(timeout) rerun for stop-on-solib-events"} } send_gdb "set stop-on-solib-events 0\n" gdb_expect { -re "$gdb_prompt $"\ {pass "reset stop-on-solib-events"} timeout {fail "(timeout) reset stop-on-solib-events"} } } # Hardware breakpoints are unsupported on HP-UX. Verify that GDB # gracefully responds to requests to create them. # if [istarget "hppa*-*-hpux*"] then { if ![runto_main] then { fail "break tests suppressed" } send_gdb "hbreak\n" gdb_expect { -re "No hardware breakpoint support in the target.*$gdb_prompt $"\ {pass "hw breaks disallowed"} -re "$gdb_prompt $"\ {fail "hw breaks disallowed"} timeout {fail "(timeout) hw breaks disallowed"} } send_gdb "thbreak\n" gdb_expect { -re "No hardware breakpoint support in the target.*$gdb_prompt $"\ {pass "temporary hw breaks disallowed"} -re "$gdb_prompt $"\ {fail "temporary hw breaks disallowed"} timeout {fail "(timeout) temporary hw breaks disallowed"} } } #******** # # Test "next" over recursive function call. # proc test_next_with_recursion {} { global gdb_prompt global decimal global binfile if [target_info exists use_gdb_stub] { # Reload the program. delete_breakpoints gdb_load ${binfile}; } else { # FIXME: should be using runto gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y" delete_breakpoints } gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial" # Run until we call factorial with 6 if [istarget "*-*-vxworks*"] then { send_gdb "run vxmain \"6\"\n" } else { gdb_run_cmd } gdb_expect { -re "Break.* factorial .value=6. .*$gdb_prompt $" {} -re ".*$gdb_prompt $" { fail "run to factorial(6)"; gdb_suppress_tests; } timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests } } # Continue until we call factorial recursively with 5. if [gdb_test "continue" \ "Continuing.*Break.* factorial .value=5. .*" \ "continue to factorial(5)"] then { gdb_suppress_tests } # Do a backtrace just to confirm how many levels deep we are. if [gdb_test "backtrace" \ "#0\[ \t\]+ factorial .value=5..*" \ "backtrace from factorial(5)"] then { gdb_suppress_tests } # Now a "next" should position us at the recursive call, which # we will be performing with 4. if [gdb_test "next" \ ".* factorial .value - 1.;.*" \ "next to recursive call"] then { gdb_suppress_tests } # Disable the breakpoint at the entry to factorial by deleting them all. # The "next" should run until we return to the next line from this # recursive call to factorial with 4. # Buggy versions of gdb will stop instead at the innermost frame on # the line where we are trying to "next" to. delete_breakpoints if [istarget "mips*tx39-*"] { set timeout 60 } # We used to set timeout here for all other targets as well. This # is almost certainly wrong. The proper timeout depends on the # target system in use, and how we communicate with it, so there # is no single value appropriate for all targets. The timeout # should be established by the Dejagnu config file(s) for the # board, and respected by the test suite. # # For example, if I'm running GDB over an SSH tunnel talking to a # portmaster in California talking to an ancient 68k board running # a crummy ROM monitor (a situation I can only wish were # hypothetical), then I need a large timeout. But that's not the # kind of knowledge that belongs in this file. gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \ "next over recursive call" # OK, we should be back in the same stack frame we started from. # Do a backtrace just to confirm. set result [gdb_test "backtrace" \ "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \ "backtrace from factorial(5.1)"] if { $result != 0 } { gdb_suppress_tests } if [target_info exists gdb,noresults] { gdb_suppress_tests } gdb_continue_to_end "recursive next test" gdb_stop_suppressing_tests; } test_next_with_recursion #******** # build a new file with optimization enabled so that we can try breakpoints # on targets with optimized prologues set binfileo2 ${objdir}/${subdir}/${testfile}o2 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfileo2}" executable {debug additional_flags="-O2" }] != "" } { gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." } if [get_compiler_info ${binfileo2}] { return -1 } gdb_exit gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfileo2} if [target_info exists gdb_stub] { gdb_step_for_stub; } # # test break at function # gdb_test "break main" \ "Breakpoint.*at.* file .*$srcfile, line.*" \ "breakpoint function, optimized file" # # test break at function # gdb_test "break marker4" \ "Breakpoint.*at.* file .*$srcfile, line.*" \ "breakpoint small function, optimized file" # # run until the breakpoint at main is hit. For non-stubs-using targets. # if ![target_info exists use_gdb_stub] { if [istarget "*-*-vxworks*"] then { send_gdb "run vxmain \"2\"\n" set timeout 120 verbose "Timeout is now $timeout seconds" 2 } else { send_gdb "run\n" } gdb_expect { -re "The program .* has been started already.*y or n. $" { send_gdb "y\n" exp_continue } -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:75.*75\[\t \]+if .argc.* \{.*$gdb_prompt $"\ { pass "run until function breakpoint, optimized file" } -re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $"\ { pass "run until function breakpoint, optimized file (code motion)" } -re ".*$gdb_prompt $" { fail "run until function breakpoint, optimized file" } timeout { fail "run until function breakpoint, optimized file (timeout)" } } } else { if ![target_info exists gdb_stub] { gdb_test continue ".*Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:75.*75\[\t \]+if .argc.*\{.*" "stub continue, optimized file" } } # # run until the breakpoint at a small function # # # Add a second pass pattern. The behavior differs here between stabs # and dwarf for one-line functions. Stabs preserves two line symbols # (one before the prologue and one after) with the same line number, # but dwarf regards these as duplicates and discards one of them. # Therefore the address after the prologue (where the breakpoint is) # has no exactly matching line symbol, and GDB reports the breakpoint # as if it were in the middle of a line rather than at the beginning. send_gdb "continue\n" gdb_expect { -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:51\[\r\n\]+51\[\t \]+void marker4.*" { pass "run until breakpoint set at small function, optimized file" } -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile:51\[\r\n\]+51\[\t \]+void marker4.*" { pass "run until breakpoint set at small function, optimized file" } -re ".*$gdb_prompt " { fail "run until breakpoint set at small function, optimized file" } timeout { fail "run until breakpoint set at small function, optimized file (timeout)" } } # Reset the default arguments for VxWorks if [istarget "*-*-vxworks*"] { set timeout 10 verbose "Timeout is now $timeout seconds" 2 send_gdb "set args main\n" gdb_expect -re ".*$gdb_prompt $" {} }