150 lines
5.6 KiB
Plaintext
150 lines
5.6 KiB
Plaintext
# Copyright 2012-2015 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test case for forgotten hw-watchpoints after fork()-off of a process.
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set testfile watchpoint-fork
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if [is_remote target] {
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kfail "remote/13584" "gdbserver does not support debugging across fork"
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return
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}
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proc test {type symbol} {
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with_test_prefix "$type" {
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global testfile subdir srcdir gdb_prompt
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set srcfile_type ${srcdir}/${subdir}/${testfile}-${type}.c
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# no threads
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with_test_prefix "singlethreaded" {
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set executable ${testfile}-${type}-st
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set srcfile_main ${testfile}-st.c
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if {[build_executable $testfile.exp $executable \
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[list $srcfile_main ${testfile}-${type}.c] \
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[list debug additional_flags=-D$symbol]] == -1} {
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return -1
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}
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clean_restart $executable
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if [target_info exists gdb,no_hardware_watchpoints] {
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# The software watchpoint functionality is in GDB an unrelated test.
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gdb_test_no_output "set can-use-hw-watchpoints 0"
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}
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gdb_test "show detach-on-fork" "Whether gdb will detach the child of a fork is on\\."
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gdb_test_no_output "set follow-fork-mode $type"
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gdb_test "show follow-fork-mode" "Debugger response to a program call of fork or vfork is \"$type\"\\."
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# Testcase uses it for the `follow-fork-mode child' type.
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gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*"
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if ![runto_main] {
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return
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}
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gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint"
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# It is never hit but it should not be left over in the fork()ed-off child.
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if [skip_hw_breakpoint_tests] {
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set hbreak "break"
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} else {
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set hbreak "hbreak"
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}
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gdb_test "$hbreak marker"
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gdb_breakpoint "mark_exit"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "hardware breakpoints work"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*forkoff *\\(1\\).*" "watchpoints work"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "breakpoint after the first fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*forkoff *\\(2\\).*" "watchpoint after the first fork"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "breakpoint after the second fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*mark_exit \\(\\);" "watchpoint after the second fork"
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gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish"
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}
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# threads
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if [target_info exists gdb,no_hardware_watchpoints] {
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# Watchpoint hits would get detected in unexpected threads.
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return
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}
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with_test_prefix "multithreaded" {
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set executable ${testfile}-${type}-mt
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set srcfile_main ${srcdir}/${subdir}/${testfile}-mt.c
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if { [gdb_compile_pthreads "${srcfile_main} ${srcfile_type}" [standard_output_file ${executable}] executable [list debug "additional_flags=-D$symbol -DTHREAD"]] != "" } {
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untested ${testfile}.exp
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return
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}
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clean_restart $executable
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gdb_test_no_output "set follow-fork-mode $type"
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# Testcase uses it for the `follow-fork-mode child' type.
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gdb_test "handle SIGUSR1 nostop noprint pass" "No\[ \t\]+No\[ \t\]+Yes.*"
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if ![runto_main] {
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return
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}
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gdb_test "watch var" "atchpoint \[0-9\]+: var" "Set the watchpoint"
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# It should not be left over in the fork()ed-off child.
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gdb_test "$hbreak marker" {reakpoint [0-9]+.*}
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gdb_breakpoint "mark_exit"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "hardware breakpoints work"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 0.*New value = 1.*validity-first.*" "singlethread watchpoints work"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 1.*New value = 2.*validity-thread-A.*" "multithreaded watchpoints work at A"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 2.*New value = 3.*validity-thread-B.*" "multithreaded watchpoints work at B"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the first fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 3.*New value = 4.*after-fork1-A.*" "watchpoint A after the first fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 4.*New value = 5.*after-fork1-B.*" "watchpoint B after the first fork"
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gdb_test "continue" \
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"reakpoint \[0-9\]+, marker.*" "breakpoint (A) after the second fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 5.*New value = 6.*after-fork2-A.*" "watchpoint A after the second fork"
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gdb_test "continue" \
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"atchpoint \[0-9\]+: var.*Old value = 6.*New value = 7.*after-fork2-B.*" "watchpoint B after the second fork"
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gdb_test "continue" "Continuing\\..*\r\nBreakpoint \[0-9\]+, mark_exit .*" "finish"
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}
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}
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}
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test parent FOLLOW_PARENT
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# Only GNU/Linux is known to support `set follow-fork-mode child'.
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if [istarget "*-*-linux*"] {
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test child FOLLOW_CHILD
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} else {
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untested "${testfile}: child"
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}
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