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# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008,
# 2009, 2010 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 file was written by Fred Fish. (fnf@cygnus.com)
if $tracelevel then {
strace $tracelevel
}
# This only works with native configurations
if ![isnative] then {
return
}
set testfile "pthreads"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
# regexp for "horizontal" text (i.e. doesn't include newline or
# carriage return)
set horiz "\[^\n\r\]*"
if [istarget "*-*-linux"] then {
set target_cflags "-D_MIT_POSIX_THREADS"
} else {
set target_cflags ""
}
if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list debug "incdir=${objdir}"]] != "" } {
return -1
}
# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
gdb_test_no_output "set print sevenbit-strings"
#gdb_test_no_output "set print address off"
gdb_test_no_output "set width 0"
# We'll need this when we send_gdb a ^C to GDB. Need to do it before we
# run the program and gdb starts saving and restoring tty states.
# On Ultrix, we don't need it and it is really slow (because shell_escape
# doesn't use vfork).
if ![istarget "*-*-ultrix*"] then {
gdb_test "shell stty intr '^C'" ".*"
}
proc all_threads_running {} {
global gdb_prompt
global srcfile
# Reset all the counters to zero.
gdb_test_no_output "set var common_routine::hits=0"
gdb_test_no_output "set var common_routine::from_thread1=0"
gdb_test_no_output "set var common_routine::from_thread2=0"
gdb_test_no_output "set var common_routine::from_main=0"
gdb_test_no_output "set var common_routine::full_coverage=0"
# Disable all breakpoints.
gdb_test_no_output "disable"
# Set up a breakpoint that will cause us to stop when we have
# been called 15 times. This should be plenty of time to allow
# every thread to run at least once, since each thread sleeps for
# one second between calls to common_routine.
gdb_test "tbreak common_routine if hits >= 15" ".*"
# Start all the threads running again and wait for the inferior
# to stop. Since no other breakpoints are set at this time
# we should stop only when we have been previously called 15 times.
set return_me 1
gdb_test_multiple "continue" "continue until common routine run 15 times" {
-re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {
set return_me 0
}
}
if { $return_me == 1 } then {
return 0;
}
# Check that we stopped when we actually expected to stop, by
# verifying that there have been 15 previous hits.
# NOTE: Because of synchronization behavior, it is possible for
# more than one thread to increment "hits" between one breakpoint
# trap and the next. So stopping after 16 or 17 hits should be
# considered acceptable.
gdb_test_multiple "p common_routine::hits" \
"stopped before calling common_routine 15 times" {
-re ".*= 15\r\n$gdb_prompt $" {
pass "stopped before calling common_routine 15 times"
}
-re ".*= 16\r\n$gdb_prompt $" {
pass "stopped before calling common_routine 15 times (16 times)"
}
-re ".*= 17\r\n$gdb_prompt $" {
pass "stopped before calling common_routine 15 times (17 times)"
}
}
# Also check that all of the threads have run, which will only be true
# if the full_coverage variable is set.
set return_me 1
gdb_test_multiple "p common_routine::full_coverage" \
"some threads didn't run" {
-re ".* = 1.*$gdb_prompt $" {
}
-re ".* = 0.*$gdb_prompt $" {
fail "some threads didn't run"
set return_me 0
}
}
# Looks fine, return success.
return $return_me
}
proc test_startup {} {
global srcdir srcfile gdb_prompt expect_out
global horiz
global main_id thread1_id thread2_id
# We should be able to do an info threads before starting any others.
set return_me 1
gdb_test_multiple "info threads" "info threads" {
-re ".*Thread.*main.*$gdb_prompt $" {
pass "info threads"
set return_me 0
}
-re "\r\n$gdb_prompt $" {
unsupported "gdb does not support pthreads for this machine"
}
}
if { $return_me == 1 } then {
return 0;
}
# Extract the thread id number of main thread from "info threads" output.
gdb_test_multiple "info threads" "get main thread id" {
-re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" {
}
}
set main_id $expect_out(1,string)
# Check that we can continue and create the first thread.
gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
gdb_test "continue" \
"Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
"Continue to creation of first thread"
gdb_test_no_output "disable"
# Extract the thread id number of thread 1 from "info threads" output.
gdb_test_multiple "info threads" "get thread 1 id" {
-re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" {
}
}
set thread1_id $expect_out(1,string)
# Check that we can continue and create the second thread,
# ignoring the first thread for the moment.
gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
gdb_test "continue" \
"Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
"Continue to creation of second thread"
# Extract the thread id number of thread 2 from "info threads" output.
gdb_test_multiple "info threads" "get thread 2 id" {
-re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" {
}
}
set thread2_id $expect_out(1,string)
return 1
}
proc check_control_c {} {
global gdb_prompt
# Verify that all threads are running.
if [all_threads_running] then {
pass "All threads running after startup"
}
# Send a continue followed by ^C to the process to stop it.
gdb_test_multiple "continue" "continue with all threads running" {
-re "Continuing." {
pass "Continue with all threads running"
}
}
after 2000
send_gdb "\003"
set description "Stopped with a ^C"
gdb_expect {
-re "Program received signal SIGINT.*$gdb_prompt $" {
pass $description
}
-re "Quit.*$gdb_prompt $" {
pass $description
}
timeout {
fail "$description (timeout)"
return 1;
}
}
gdb_test "bt" ".*"
# Verify that all threads can be run again after a ^C stop.
if [all_threads_running] then {
pass "All threads running after continuing from ^C stop"
}
return 0;
}
proc check_backtraces {} {
global gdb_prompt main_id thread1_id thread2_id
# Check that the "thread apply N backtrace" command works
gdb_test "thread apply $main_id backtrace" \
".* in main \\(argc=.*, argv=.*\\).*" \
"check backtrace from main thread"
gdb_test "thread apply $thread1_id backtrace" \
".* in thread1 \\(arg=0xfeedface\\).*" \
"check backtrace from thread 1"
gdb_test "thread apply $thread2_id backtrace" \
".* in thread2 \\(arg=0xdeadbeef\\).*" \
"check backtrace from thread 2"
# Check that we can apply the backtrace command to all
# three threads with a single gdb command
gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
".* in main .* in thread1 .* in thread2.*" \
"apply backtrace command to all three threads"
# Check that we can do thread specific backtraces
# This also tests that we can do thread specific breakpoints.
gdb_test "break common_routine thread $thread2_id" \
"Breakpoint .* at 0x.* file .* line .*" \
"set break at common_routine in thread 2"
gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" {
-re "Breakpoint .* common_routine \\(arg=2\\).*" {
pass "continue to bkpt at common_routine in thread 2"
gdb_test "backtrace" \
"#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \
"backtrace from thread 2 bkpt in common_routine"
}
-re "Breakpoint .* common_routine \\(arg=0\\).*" {
fail "continue to bkpt at common_routine in thread 2 (arg=0)"
}
-re "Breakpoint .* common_routine \\(arg=1\\).*" {
fail "continue to bkpt at common_routine in thread 2 (arg=1)"
}
}
}
setup_xfail "alpha-*-osf*"
if [runto_main] then {
clear_xfail "alpha-*-osf*"
if [test_startup] then {
if [check_control_c] then {
warning "Could not stop child with ^C; skipping rest of tests.\n"
return;
}
check_backtraces
}
}
clear_xfail "alpha-*-osf*"
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