gdb/gdbserver:
2012-02-29 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * linux-low.c (linux_wait_1): Call unsuspend_all_lwps when `step_over_finished' is true. gdb/testsuite: 2012-02-29 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdb.trace/trace-mt.c: New * gdb.trace/trace-mt.exp: New.
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Yao Qi
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commit
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5 changed files with 220 additions and 0 deletions
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@ -1,3 +1,9 @@
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2012-02-29 Yao Qi <yao@codesourcery.com>
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Pedro Alves <palves@redhat.com>
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* linux-low.c: (linux_wait_1): Call unsuspend_all_lwps when
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`step_over_finished' is true.
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2012-02-27 Pedro Alves <palves@redhat.com>
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* linux-low.c (pid_is_stopped): Delete, moved to common/.
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@ -2509,6 +2509,15 @@ Check if we're already there.\n",
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why. */
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find_inferior (&all_lwps, cancel_breakpoints_callback, event_child);
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/* If we were going a step-over, all other threads but the stepping one
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had been paused in start_step_over, with their suspend counts
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incremented. We don't want to do a full unstop/unpause, because we're
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in all-stop mode (so we want threads stopped), but we still need to
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unsuspend the other threads, to decrement their `suspended' count
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back. */
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if (step_over_finished)
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unsuspend_all_lwps (event_child);
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/* Stabilize threads (move out of jump pads). */
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stabilize_threads ();
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}
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@ -1,3 +1,9 @@
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2012-02-29 Yao Qi <yao@codesourcery.com>
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Pedro Alves <palves@redhat.com>
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* gdb.trace/trace-mt.c: New.
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* gdb.trace/trace-mt.exp: New.
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2012-02-28 Thomas Schwinge <thomas@codesourcery.com>
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* gdb.base/annota1.exp: Use gdb_get_line_number for retrieving line
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63
gdb/testsuite/gdb.trace/trace-mt.c
Normal file
63
gdb/testsuite/gdb.trace/trace-mt.c
Normal file
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@ -0,0 +1,63 @@
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2012 Free Software Foundation, Inc.
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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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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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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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#include <pthread.h>
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#ifdef SYMBOL_PREFIX
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#define SYMBOL(str) SYMBOL_PREFIX #str
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#else
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#define SYMBOL(str) #str
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#endif
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/* Called from asm. */
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static void __attribute__((used))
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func (void)
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{}
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static void *
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thread_function(void *arg)
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{
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/* `set_point1' is the label at which to set a fast tracepoint. The
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insn at the label must be large enough to fit a fast tracepoint
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jump. */
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asm (" .global " SYMBOL(set_point1) "\n"
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SYMBOL(set_point1) ":\n"
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#if (defined __x86_64__ || defined __i386__)
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" call " SYMBOL(func) "\n"
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#endif
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);
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}
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static void
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end (void)
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{}
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int
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main (int argc, char *argv[], char *envp[])
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{
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pthread_t threads[2];
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int i;
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for (i = 0; i < 2; i++)
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pthread_create (&threads[i], NULL, thread_function, NULL);
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for (i = 0; i < 2; i++)
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pthread_join (threads[i], NULL);
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end ();
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return 0;
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}
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136
gdb/testsuite/gdb.trace/trace-mt.exp
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136
gdb/testsuite/gdb.trace/trace-mt.exp
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@ -0,0 +1,136 @@
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# Copyright 2012 Free Software Foundation, Inc.
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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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load_lib "trace-support.exp";
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set testfile "trace-mt"
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set executable $testfile
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set srcfile $testfile.c
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set binfile $objdir/$subdir/$testfile
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set expfile $testfile.exp
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# Some targets have leading underscores on assembly symbols.
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set additional_flags [gdb_target_symbol_prefix_flags]
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if { [gdb_compile_pthreads "$srcdir/$subdir/$srcfile" $binfile \
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executable [list debug $additional_flags] ] != "" } {
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untested "Couldn't compile test program"
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return -1
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}
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clean_restart ${testfile}
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if ![runto_main] {
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fail "Can't run to main to check for trace support"
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return -1
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}
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if ![gdb_target_supports_trace] {
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unsupported "target does not support trace"
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return -1
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}
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proc step_over_tracepoint { trace_type } \
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{with_test_prefix "step over $trace_type" \
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{
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global executable
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global hex
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# Start with a fresh gdb.
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clean_restart ${executable}
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# Make sure inferior is running in all-stop mode.
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gdb_test_no_output "set non-stop 0"
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if ![runto_main] {
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fail "Can't run to main"
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return -1
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}
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gdb_test "break set_point1" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+.*Breakpoint.*" "continue to set_point1"
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gdb_test "${trace_type} *\$pc" "\(Fast t|T\)racepoint \[0-9\] at $hex: file.*"
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gdb_test_no_output "tstart"
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gdb_test "stepi" ".*"
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gdb_test_no_output "tstop"
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}}
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# Set breakpoint and tracepoint at the same address.
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proc break_trace_same_addr { trace_type option } \
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{with_test_prefix "$trace_type $option" \
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{
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global executable
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global hex
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# Start with a fresh gdb.
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main"
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return -1
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}
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gdb_test_no_output "set breakpoint always-inserted ${option}"
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gdb_test "break end" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "break set_point1" "Breakpoint \[0-9\] at $hex: file.*"
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gdb_test "${trace_type} set_point1" "\(Fast t|T\)racepoint \[0-9\] at $hex: file.*"
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gdb_test_no_output "tstart"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+.*Breakpoint.*" "continue to set_point1 1"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+.*Breakpoint.*" "continue to set_point1 2"
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gdb_test "continue" "Continuing\\.\[ \r\n\]+.*Breakpoint.*" "continue to end"
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gdb_test_no_output "tstop"
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gdb_test "tfind" "Found trace frame 0, tracepoint .*" "tfind frame 0"
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gdb_test "tfind" "Found trace frame 1, tracepoint .*" "tfind frame 1"
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gdb_test "tfind" "Target failed to find requested trace frame\\..*"
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}}
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foreach break_always_inserted { "on" "off" } {
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break_trace_same_addr "trace" ${break_always_inserted}
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}
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step_over_tracepoint "trace"
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set libipa $objdir/../gdbserver/libinproctrace.so
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gdb_load_shlibs $libipa
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# Compile test case again with IPA.
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if { [gdb_compile_pthreads "$srcdir/$subdir/$srcfile" $binfile \
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executable [list debug $additional_flags shlib=$libipa] ] != "" } {
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untested "failed to compile ftrace tests"
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return -1
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}
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main for ftrace tests"
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return 0
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}
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gdb_reinitialize_dir $srcdir/$subdir
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if { [gdb_test "info sharedlibrary" ".*libinproctrace\.so.*" "IPA loaded"] != 0 } {
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untested "Could not find IPA lib loaded"
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} else {
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foreach break_always_inserted { "on" "off" } {
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break_trace_same_addr "ftrace" ${break_always_inserted}
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}
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step_over_tracepoint "ftrace"
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}
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