| # Copyright 2012 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 3 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, see <http://www.gnu.org/licenses/>. |
| |
| # Test case for forgotten hw-watchpoints after fork()-off of a process. |
| |
| set testfile watchpoint-fork |
| |
| if [is_remote target] { |
| kfail "remote/13584" "gdbserver does not support debugging across fork" |
| return |
| } |
| |
| proc test {type symbol} { with_test_prefix "$type" { |
| global testfile objdir subdir srcdir gdb_prompt |
| |
| set srcfile_type ${srcdir}/${subdir}/${testfile}-${type}.c |
| |
| # no threads |
| |
| with_test_prefix "singlethreaded" { |
| set executable ${testfile}-${type}-st |
| set srcfile_main ${srcdir}/${subdir}/${testfile}-st.c |
| if { [gdb_compile "${srcfile_main} ${srcfile_type}" ${objdir}/${subdir}/${executable} executable [list debug additional_flags=-D$symbol]] != "" } { |
| untested ${testfile}.exp |
| return |
| } |
| clean_restart $executable |
| |
| if [target_info exists gdb,no_hardware_watchpoints] { |
| # The software watchpoint functionality is in GDB an unrelated test. |
| gdb_test_no_output "set can-use-hw-watchpoints 0" |
| } |
| |
| gdb_test "show detach-on-fork" "Whether gdb will detach the child of a fork is on\\." |
| gdb_test_no_output "set follow-fork-mode $type" |
| gdb_test "show follow-fork-mode" "Debugger response to a program call of fork or vfork is \"$type\"\\." |
| # Testcase uses it for the `follow-fork-mode child' type. |
| gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" |
| |
| if ![runto_main] { |
| return |
| } |
| |
| gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint" |
| |
| # It is never hit but it should not be left over in the fork()ed-off child. |
| if [skip_hw_breakpoint_tests] { |
| set hbreak "break" |
| } else { |
| set hbreak "hbreak" |
| } |
| gdb_test "$hbreak marker" |
| |
| gdb_breakpoint "mark_exit" |
| |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*forkoff *\\(1\\).*" "watchpoints work" |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "breakpoint after the first fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*forkoff *\\(2\\).*" "watchpoint after the first fork" |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "breakpoint after the second fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*mark_exit \\(\\);" "watchpoint after the second fork" |
| gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish" |
| } |
| |
| # threads |
| |
| if [target_info exists gdb,no_hardware_watchpoints] { |
| # Watchpoint hits would get detected in unexpected threads. |
| return |
| } |
| |
| with_test_prefix "multithreaded" { |
| set executable ${testfile}-${type}-mt |
| set srcfile_main ${srcdir}/${subdir}/${testfile}-mt.c |
| if { [gdb_compile_pthreads "${srcfile_main} ${srcfile_type}" ${objdir}/${subdir}/${executable} executable [list debug "additional_flags=-D$symbol -DTHREAD"]] != "" } { |
| untested ${testfile}.exp |
| return |
| } |
| clean_restart $executable |
| |
| gdb_test_no_output "set follow-fork-mode $type" |
| # Testcase uses it for the `follow-fork-mode child' type. |
| gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*" |
| |
| if ![runto_main] { |
| return |
| } |
| |
| gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint" |
| |
| # It should not be left over in the fork()ed-off child. |
| gdb_test "$hbreak marker" {reakpoint [0-9]+.*} |
| |
| gdb_breakpoint "mark_exit" |
| |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "hardware breakpoints work" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*validity-first.*" "singlethread watchpoints work" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*validity-thread-A.*" "multithreaded watchpoints work at A" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*validity-thread-B.*" "multithreaded watchpoints work at B" |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the first fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 3.*New value = 4.*after-fork1-A.*" "watchpoint A after the first fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 4.*New value = 5.*after-fork1-B.*" "watchpoint B after the first fork" |
| gdb_test "continue" \ |
| "reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the second fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 5.*New value = 6.*after-fork2-A.*" "watchpoint A after the second fork" |
| gdb_test "continue" \ |
| "atchpoint \[0-9\]+: var.*Old value = 6.*New value = 7.*after-fork2-B.*" "watchpoint B after the second fork" |
| gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish" |
| } |
| }} |
| |
| test parent FOLLOW_PARENT |
| |
| # Only GNU/Linux is known to support `set follow-fork-mode child'. |
| if [istarget "*-*-linux*"] { |
| test child FOLLOW_CHILD |
| } else { |
| untested "${testfile}: child" |
| } |