aboutsummaryrefslogtreecommitdiff
path: root/gdb/testsuite
diff options
context:
space:
mode:
authorPedro Alves <palves@redhat.com>2008-10-15 19:15:34 +0000
committerPedro Alves <palves@redhat.com>2008-10-15 19:15:34 +0000
commit1c5cfe8615a947f26ef1569f3af3017bb1c63899 (patch)
tree67c00221d017a285eaf67bc17815044541a57d9f /gdb/testsuite
parent41702f1b3391a34327b3fb4786b690583c1249b6 (diff)
downloadgdb-1c5cfe8615a947f26ef1569f3af3017bb1c63899.zip
gdb-1c5cfe8615a947f26ef1569f3af3017bb1c63899.tar.gz
gdb-1c5cfe8615a947f26ef1569f3af3017bb1c63899.tar.bz2
gdb/
* breakpoint.c (breakpoint_init_inferior): Clean up the moribund locations list. (moribund_breakpoint_here_p): Record the moribund location in the moribund_locations vector. * breakpoint.h (moribund_breakpoint_here_p): Declare. (displaced_step_fixup): Check if the breakpoint the thread was trying to step over has been removed since having been placed in the displaced stepping queue. (adjust_pc_after_break): In non-stop mode, check for a moribund breakpoint at the stop pc. (handle_inferior_event): Don't retire moribund breakpoints on TARGET_WAITKIND_IGNORE. gdb/testsuite/ * gdb.mi/mi-nsmoribund.exp, gdb.mi/nsmoribund.c: New test.
Diffstat (limited to 'gdb/testsuite')
-rw-r--r--gdb/testsuite/ChangeLog4
-rw-r--r--gdb/testsuite/gdb.mi/mi-nsmoribund.exp177
-rw-r--r--gdb/testsuite/gdb.mi/nsmoribund.c72
3 files changed, 253 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 98c2188..1dd8d4b 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2008-10-15 Pedro Alves <pedro@codesourcery.com>
+
+ * gdb.mi/mi-nsmoribund.exp, gdb.mi/nsmoribund.c: New test.
+
2008-10-15 Denis Pilat <denis.pilat@st.com>
* gdb.cp/mb-ctor.exp: Fix a typo.
diff --git a/gdb/testsuite/gdb.mi/mi-nsmoribund.exp b/gdb/testsuite/gdb.mi/mi-nsmoribund.exp
new file mode 100644
index 0000000..85e5138
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/mi-nsmoribund.exp
@@ -0,0 +1,177 @@
+# Copyright 2008 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 only works with native configurations
+if {![isnative]} {
+ return
+}
+
+load_lib mi-support.exp
+set MIFLAGS "-i=mi"
+
+gdb_exit
+if {[mi_gdb_start]} {
+ continue
+}
+
+#
+# Start here
+#
+set testfile "nsmoribund"
+set srcfile "$testfile.c"
+set binfile "$objdir/$subdir/mi-$testfile"
+
+set options [list debug incdir=$objdir]
+if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
+ return -1
+}
+
+mi_gdb_reinitialize_dir $srcdir/$subdir
+mi_gdb_load $binfile
+
+set supported 0
+send_gdb "-gdb-show non-stop\n"
+gdb_expect {
+ -re ".*\\^done,value=\"off\",supported=\"(\[^\"\]+)\"\r\n$mi_gdb_prompt$" {
+ if { $expect_out(1,string) == "1" } {
+ set supported 1
+ }
+ }
+ -re ".$mi_gdb_prompt$" {
+ }
+}
+
+mi_gdb_test "-gdb-set non-stop 1" ".*"
+mi_gdb_test "-gdb-set target-async 1" ".*"
+detect_async
+
+mi_gdb_test "200-break-insert -t main" ".*"
+
+set created "=thread-created,id=\"$decimal\"\r\n"
+set running "\\*running,thread-id=\"$decimal\"\r\n"
+
+set notifs "($created)*($running)*"
+
+# Note: presently, we skip this test on non-native targets,
+# so 'run' is OK. As soon as we start to run this on remote
+# target, the logic from mi_run_cmd will have to be refactored.
+send_gdb "-exec-run\n"
+gdb_expect {
+ -re "\\^running\r\n$notifs$mi_gdb_prompt" {
+ }
+ -re "\\^error,msg=\"The target does not support running in non-stop mode.\"" {
+ verbose -log "Non-stop mode not supported, skipping all tests"
+ return
+ }
+ -re "\r\n$mi_gdb_prompt" {
+ perror "Cannot start target (unknown output after running)"
+ return -1
+ }
+ timeout {
+ perror "Cannot start target (timeout)"
+ return -1
+ }
+}
+mi_expect_stop "breakpoint-hit" main ".*" ".*" "\[0-9\]+" \
+ { "" "disp=\"del\"" } "run to main"
+
+# Keep this in sync with THREADS in the the $srcfile.
+set nthreads 10
+
+# Set a breakpoint and let all threads hit it (except the main
+# thread).
+
+set bkpt_line [gdb_get_line_number "set breakpoint here"]
+
+mi_create_breakpoint "$srcfile:$bkpt_line" 2 keep thread_function .* .* .* \
+ "breakpoint at thread_function"
+
+mi_send_resuming_command "exec-continue --all" "resume all"
+for {set i 0} {$i < $nthreads} {incr i} {
+ mi_expect_stop "breakpoint-hit" "thread_function" "\[^\n\]*" "$srcfile" \
+ "\[0-9\]*" {"" "disp=\"keep\""} "stop $i"
+}
+
+# All but the main thread should have hit it.
+
+mi_check_thread_states \
+ {"running" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped"} \
+ "thread state: all stopped except the main thread"
+
+# Select a stopped thread to make sure we're able to delete
+# breakpoints
+mi_gdb_test "-thread-select 5" "\\^done.*" "select thread 5"
+
+# Now that we know about all the threads, we can get rid of
+# breakpoint.
+mi_delete_breakpoints
+
+# Recreate the same breakpoint, but this time, specific to thread 5.
+mi_create_breakpoint "-p 5 $srcfile:$bkpt_line" 3 keep thread_function .* .* .* \
+ "thread specific breakpoint at thread_function"
+
+# Resume all threads. Only thread 5 should report a stop.
+
+set running_re ""
+for {set i $nthreads} {$i > 0} {incr i -1} {
+ set running_re "$running_re\\*running,thread-id=\"$decimal\"\r\n"
+}
+
+send_gdb "-exec-continue --all\n"
+gdb_expect {
+ -re ".*$running_re$mi_gdb_prompt" {
+ pass "resume all, thread specific breakpoint"
+ }
+ timeout {
+ fail "resume all, thread specific breakpoint (timeout)"
+ }
+}
+
+mi_expect_stop "breakpoint-hit" "thread_function" "\[^\n\]*" "$srcfile" \
+ "\[0-9\]*" {"" "disp=\"keep\""} "hit thread specific breakpoint"
+
+# All threads except both thread 5 (and the main thread) should now be
+# repeatedly hitting the thread specific breakpoint and stepping over
+# it transparently. These are internal events, so the frontend should
+# see those threads as running.
+
+mi_check_thread_states \
+ {"running" "running" "running" "running" "stopped" "running" "running" "running" "running"} \
+ "thread state: all running except the breakpoint thread"
+
+# Get rid of the breakpoint while the other threads are stepping over
+# it, and tell all threads to exit. The program should exit
+# gracefully shortly. Send all commands in a row, since if something
+# goes wrong with moribund locations support or displaced stepping (or
+# a target bug if it can step over breakpoints itself), a spurious
+# SIGTRAP/SIGSEGV can come at any time after deleting the breakpoint.
+
+send_gdb "102-break-delete\n"
+send_gdb "print done = 1\n"
+send_gdb "103-exec-continue --all\n"
+
+gdb_expect {
+ -re "\\*stopped,reason=\"exited-normally\"" {
+ pass "resume all, program exited normally"
+ }
+ -re "\\*stopped" {
+ fail "unexpected stop"
+ }
+ timeout {
+ fail "resume all, waiting for program exit (timeout)"
+ }
+}
+
+mi_gdb_exit
diff --git a/gdb/testsuite/gdb.mi/nsmoribund.c b/gdb/testsuite/gdb.mi/nsmoribund.c
new file mode 100644
index 0000000..aa41dbd
--- /dev/null
+++ b/gdb/testsuite/gdb.mi/nsmoribund.c
@@ -0,0 +1,72 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2002, 2003, 2004, 2007, 2008 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 is based on schedlock.c. */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+int THREADS = 10;
+unsigned int *args;
+volatile int done = 0;
+
+void *
+thread_function (void *arg)
+{
+ int my_number = (long) arg;
+ volatile int *myp = (volatile int *) &args[my_number];
+
+ /* Don't run forever. Run just short of it :) */
+ while (*myp > 0 && !done)
+ {
+ (*myp)++; /* set breakpoint here */
+ }
+
+ if (done)
+ usleep (100); /* Some time to make sure we don't mask any bad
+ SIGTRAP handling. */
+
+ pthread_exit (NULL);
+}
+
+int
+main (int argc, char **argv)
+{
+ int res;
+ pthread_t *threads;
+ void *thread_result;
+ long i = 0;
+
+ threads = malloc (THREADS * sizeof (pthread_t));
+ args = malloc (THREADS * sizeof (unsigned int));
+
+ for (i = 0; i < THREADS; i++)
+ {
+ args[i] = 1; /* Init value. */
+ res = pthread_create (&threads[i],
+ NULL,
+ thread_function,
+ (void *) i);
+ }
+
+ for (i = 0; i < THREADS; i++)
+ pthread_join (threads[i], &thread_result);
+
+ exit(EXIT_SUCCESS);
+}