gdb/testsuite/gdb.threads/threadapply.exp - binutils-gdb - Git at Google

 # This testcase is part of GDB, the GNU debugger.

 # Copyright 2004-2021 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/>.


 # This test verifies that a macro using backtrace can be applied to all threads
 # and will continue for each thread even though an error may occur in
 # backtracing one of the threads.

 standard_testfile
 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
     return -1
 }

 clean_restart ${binfile}

 #
 # Run to `main' where we begin our tests.
 #

 if ![runto_main] then {
     return 0
 }

 # Break after all threads have been started.
 set break_line [gdb_get_line_number "Break here"]
 gdb_test "b $break_line" ".*"
 gdb_test "continue"

 gdb_test_multiple "define backthread" "defining macro" {
   -re "Type commands for definition of \"backthread\".\r\nEnd with a line saying just \"end\".\r\n>$" {
     gdb_test_multiple "bt\np/x 20\nend" "macro details" {
       -re "$gdb_prompt $" {
         pass "macro details"
       }
     }
     pass "defining macro"
   }
 }

 # Cause backtraces to fail by setting a limit.  This allows us to
 # verify that the macro can get past the backtrace error and perform
 # subsequent commands.
 gdb_test_no_output "set backtrace limit 3"
 gdb_test "thread apply all backthread" "Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14"

 # Go into the thread_function to check that a simple "thread apply"
 # does not change the selected frame.
 gdb_test "step" "thread_function.*" "step to the thread_function"
 gdb_test "up" ".*in main.*" "go up in the stack frame"
 gdb_test "thread apply all print 1"  "Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1" "run a simple print command on all threads"
 gdb_test "down" "#0.*thread_function.*" "go down and check selected frame"

 # Make sure that GDB doesn't crash when the previously selected thread
 # exits due to the command run via thread apply.  Regression test for
 # PR threads/13217.

 proc thr_apply_detach {thread_set} {
     with_test_prefix "thread apply $thread_set" {
 	global binfile
 	global break_line

 	clean_restart ${binfile}

 	if ![runto_main] {
 	    return -1
 	}

 	gdb_breakpoint "$break_line"
 	gdb_continue_to_breakpoint "all threads started"

 	gdb_test "thread apply $thread_set detach" "Thread .*"
 	gdb_test "thread" "No thread selected" "switched to no thread selected"
     }
 }

 # Test both "all" and a thread list, because those are implemented as
 # different commands in GDB.
 foreach thread_set {"all" "1.1 1.2 1.3"} {
     thr_apply_detach $thread_set
 }

 # Test killing and removing inferiors from a command run via "thread
 # apply THREAD_SET".  THREAD_SET can be either "1.1", or "all".  GDB
 # used to mistakenly allow deleting the previously-selected inferior,
 # in some cases, leading to crashes.

 proc kill_and_remove_inferior {thread_set} {
     global binfile
     global gdb_prompt

     # The test starts multiple inferiors, therefore non-extended
     # remote is not supported.
     if [use_gdb_stub] {
 	unsupported "using gdb stub"
 	return
     }

     set any "\[^\r\n\]*"
     set ws "\[ \t\]\+"

     clean_restart ${binfile}

     with_test_prefix "start inferior 1" {
 	runto_main
     }

     # Add and start inferior number NUM.
     proc add_and_start_inferior {num} {
 	global binfile

 	# Start another inferior.
 	gdb_test "add-inferior" "Added inferior $num.*" \
 	    "add empty inferior $num"
 	gdb_test "inferior $num" "Switching to inferior $num.*" \
 	    "switch to inferior $num"
 	gdb_test "file ${binfile}" ".*" "load file in inferior $num"

 	with_test_prefix "start inferior $num" {
 	    runto_main
 	}
     }

     # Start another inferior.
     add_and_start_inferior 2

     # And yet another.
     add_and_start_inferior 3

     gdb_test "thread 2.1" "Switching to thread 2.1 .*"

     # Try removing an active inferior via a "thread apply" command.
     # Should fail/warn.
     with_test_prefix "try remove" {

 	gdb_define_cmd "remove" {
 	    "remove-inferiors 3"
 	}

 	# Inferior 3 is still alive, so can't remove it.
 	gdb_test "thread apply $thread_set remove" \
 	    "warning: Can not remove active inferior 3.*"
 	# Check that GDB restored the selected thread.
 	gdb_test "thread" "Current thread is 2.1 .*"

 	gdb_test "info inferiors" \
 	    [multi_line \
 		 "${ws}1${ws}process ${any}" \
 		 "\\\* 2${ws}process ${any}" \
 		 "${ws}3${ws}process ${any}" \
 		]
     }

     # Kill and try to remove inferior 2 while inferior 2 is selected.
     # Removing the inferior should fail/warn.
     with_test_prefix "try kill-and-remove" {

 	# The "inferior 1" command works around PR gdb/19318 ("kill
 	# inferior N" shouldn't switch to inferior N).
 	gdb_define_cmd "kill-and-remove" {
 	    "kill inferiors 2"
 	    "inferior 1"
 	    "remove-inferiors 2"
 	}

 	# Note that when threads=1.1, this makes sure we're really
 	# testing failure to remove the inferior the user had selected
 	# before the "thread apply" command, instead of testing
 	# refusal to remove the currently-iterated inferior.
 	gdb_test "thread apply $thread_set kill-and-remove" \
 	    "warning: Can not remove current inferior 2.*"
 	gdb_test "thread" "No thread selected" \
 	    "switched to no thread selected"

 	gdb_test "info inferiors" \
 	    [multi_line \
 		 "${ws}1${ws}process ${any}" \
 		 "\\\* 2${ws}<null>${any}" \
 		 "${ws}3${ws}process ${any}" \
 		]
     }

     # Try removing (the now dead) inferior 2 while inferior 1 is
     # selected.  This should succeed.
     with_test_prefix "try remove 2" {

 	gdb_test "thread 1.1" "Switching to thread 1.1 .*"

 	gdb_define_cmd "remove-again" {
 	    "remove-inferiors 2"
 	}

 	set test "thread apply $thread_set remove-again"
 	gdb_test_multiple $test $test {
 	    -re "warning: Can not remove.*$gdb_prompt $" {
 		fail $test
 	    }
 	    -re "$gdb_prompt $" {
 		pass $test
 	    }
 	}
 	gdb_test "thread" "Current thread is 1.1 .*"
 	# Check that only inferiors 1 and 3 are around.
 	gdb_test "info inferiors" \
 	    [multi_line \
 		 "\\\* 1${ws}process ${any}" \
 		 "${ws}3${ws}process ${any}" \
 		]
     }
 }

 # Test both "all" and a thread list, because those are implemented as
 # different commands in GDB.
 foreach_with_prefix thread_set {"all" "1.1"} {
     kill_and_remove_inferior $thread_set
 }
	# This testcase is part of GDB, the GNU debugger.

	# Copyright 2004-2021 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/>.


	# This test verifies that a macro using backtrace can be applied to all threads
	# and will continue for each thread even though an error may occur in
	# backtracing one of the threads.

	standard_testfile
	if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
	return -1
	}

	clean_restart ${binfile}

	#
	# Run to `main' where we begin our tests.
	#

	if ![runto_main] then {
	return 0
	}

	# Break after all threads have been started.
	set break_line [gdb_get_line_number "Break here"]
	gdb_test "b $break_line" ".*"
	gdb_test "continue"

	gdb_test_multiple "define backthread" "defining macro" {
	-re "Type commands for definition of \"backthread\".\r\nEnd with a line saying just \"end\".\r\n>$" {
	gdb_test_multiple "bt\np/x 20\nend" "macro details" {
	-re "$gdb_prompt $" {
	pass "macro details"
	}
	}
	pass "defining macro"
	}
	}

	# Cause backtraces to fail by setting a limit. This allows us to
	# verify that the macro can get past the backtrace error and perform
	# subsequent commands.
	gdb_test_no_output "set backtrace limit 3"
	gdb_test "thread apply all backthread" "Thread ..\\\$\[0-9]+ = 0x14.Thread ..\\\$\[0-9]+ = 0x14.Thread ..\\\$\[0-9]+ = 0x14.Thread ..\\\$\[0-9]+ = 0x14.Thread ..\\\$\[0-9]+ = 0x14.Thread ..*\\\$\[0-9]+ = 0x14"

	# Go into the thread_function to check that a simple "thread apply"
	# does not change the selected frame.
	gdb_test "step" "thread_function.*" "step to the thread_function"
	gdb_test "up" ".in main." "go up in the stack frame"
	gdb_test "thread apply all print 1" "Thread ..\\\$\[0-9]+ = 1.Thread ..\\\$\[0-9]+ = 1.Thread ..\\\$\[0-9]+ = 1.Thread ..\\\$\[0-9]+ = 1.Thread ..\\\$\[0-9]+ = 1.Thread ..*\\\$\[0-9]+ = 1" "run a simple print command on all threads"
	gdb_test "down" "#0.thread_function." "go down and check selected frame"

	# Make sure that GDB doesn't crash when the previously selected thread
	# exits due to the command run via thread apply. Regression test for
	# PR threads/13217.

	proc thr_apply_detach {thread_set} {
	with_test_prefix "thread apply $thread_set" {
	global binfile
	global break_line

	clean_restart ${binfile}

	if ![runto_main] {
	return -1
	}

	gdb_breakpoint "$break_line"
	gdb_continue_to_breakpoint "all threads started"

	gdb_test "thread apply $thread_set detach" "Thread .*"
	gdb_test "thread" "No thread selected" "switched to no thread selected"
	}
	}

	# Test both "all" and a thread list, because those are implemented as
	# different commands in GDB.
	foreach thread_set {"all" "1.1 1.2 1.3"} {
	thr_apply_detach $thread_set
	}

	# Test killing and removing inferiors from a command run via "thread
	# apply THREAD_SET". THREAD_SET can be either "1.1", or "all". GDB
	# used to mistakenly allow deleting the previously-selected inferior,
	# in some cases, leading to crashes.

	proc kill_and_remove_inferior {thread_set} {
	global binfile
	global gdb_prompt

	# The test starts multiple inferiors, therefore non-extended
	# remote is not supported.
	if [use_gdb_stub] {
	unsupported "using gdb stub"
	return
	}

	set any "\[^\r\n\]*"
	set ws "\[ \t\]\+"

	clean_restart ${binfile}

	with_test_prefix "start inferior 1" {
	runto_main
	}

	# Add and start inferior number NUM.
	proc add_and_start_inferior {num} {
	global binfile

	# Start another inferior.
	gdb_test "add-inferior" "Added inferior $num.*" \
	"add empty inferior $num"
	gdb_test "inferior $num" "Switching to inferior $num.*" \
	"switch to inferior $num"
	gdb_test "file ${binfile}" ".*" "load file in inferior $num"

	with_test_prefix "start inferior $num" {
	runto_main
	}
	}

	# Start another inferior.
	add_and_start_inferior 2

	# And yet another.
	add_and_start_inferior 3

	gdb_test "thread 2.1" "Switching to thread 2.1 .*"

	# Try removing an active inferior via a "thread apply" command.
	# Should fail/warn.
	with_test_prefix "try remove" {

	gdb_define_cmd "remove" {
	"remove-inferiors 3"
	}

	# Inferior 3 is still alive, so can't remove it.
	gdb_test "thread apply $thread_set remove" \
	"warning: Can not remove active inferior 3.*"
	# Check that GDB restored the selected thread.
	gdb_test "thread" "Current thread is 2.1 .*"

	gdb_test "info inferiors" \
	[multi_line \
	"${ws}1${ws}process ${any}" \
	"\\\* 2${ws}process ${any}" \
	"${ws}3${ws}process ${any}" \
	]
	}

	# Kill and try to remove inferior 2 while inferior 2 is selected.
	# Removing the inferior should fail/warn.
	with_test_prefix "try kill-and-remove" {

	# The "inferior 1" command works around PR gdb/19318 ("kill
	# inferior N" shouldn't switch to inferior N).
	gdb_define_cmd "kill-and-remove" {
	"kill inferiors 2"
	"inferior 1"
	"remove-inferiors 2"
	}

	# Note that when threads=1.1, this makes sure we're really
	# testing failure to remove the inferior the user had selected
	# before the "thread apply" command, instead of testing
	# refusal to remove the currently-iterated inferior.
	gdb_test "thread apply $thread_set kill-and-remove" \
	"warning: Can not remove current inferior 2.*"
	gdb_test "thread" "No thread selected" \
	"switched to no thread selected"

	gdb_test "info inferiors" \
	[multi_line \
	"${ws}1${ws}process ${any}" \
	"\\\* 2${ws}<null>${any}" \
	"${ws}3${ws}process ${any}" \
	]
	}

	# Try removing (the now dead) inferior 2 while inferior 1 is
	# selected. This should succeed.
	with_test_prefix "try remove 2" {

	gdb_test "thread 1.1" "Switching to thread 1.1 .*"

	gdb_define_cmd "remove-again" {
	"remove-inferiors 2"
	}

	set test "thread apply $thread_set remove-again"
	gdb_test_multiple $test $test {
	-re "warning: Can not remove.*$gdb_prompt $" {
	fail $test
	}
	-re "$gdb_prompt $" {
	pass $test
	}
	}
	gdb_test "thread" "Current thread is 1.1 .*"
	# Check that only inferiors 1 and 3 are around.
	gdb_test "info inferiors" \
	[multi_line \
	"\\\* 1${ws}process ${any}" \
	"${ws}3${ws}process ${any}" \
	]
	}
	}

	# Test both "all" and a thread list, because those are implemented as
	# different commands in GDB.
	foreach_with_prefix thread_set {"all" "1.1"} {
	kill_and_remove_inferior $thread_set
	}