Pedro Alves 6b2e4f10ae Test gdb.threads/forking-threads-plus-breakpoint.exp with displaced stepping off ...

This exposes the internal error Don mentioned in PR19496:

  (1) internal error --  gdb/target.c:2713: internal-error: Can't determine the current address space of thread

More analysis here:

  https://sourceware.org/ml/gdb-patches/2016-01/msg00685.html

The (now kfailed) internal error looks like:

 continue &
 Continuing.
 (gdb) PASS: gdb.threads/forking-threads-plus-breakpoint.exp: cond_bp_target=1: detach_on_fork=on: displaced=off: continue &
 [New Thread 2846.2847]
 (...)
 [New Thread 2867.2867]
 /home/pedro/gdb/mygit/src/gdb/target.c:2723: internal-error: Can't determine the current address space of thread Thread 2846.2846

 A problem internal to GDB has been detected,
 further debugging may prove unreliable.
 Quit this debugging session? (y or n) KFAIL: gdb.threads/forking-threads-plus-breakpoint.exp: cond_bp_target=1: detach_on_fork=on: displaced=off: inferior 1 exited (GDB internal error) (PRMS: remote/19496)
 Resyncing due to internal error.

gdb/testsuite/ChangeLog:
2016-02-01  Pedro Alves  <palves@redhat.com>

	PR remote/19496
	* gdb.threads/forking-threads-plus-breakpoint.exp
	(displaced_stepping_supported): New global.
	(probe_displaced_stepping_support): New procedure.
	(do_test): Add 'displaced' parameter, and use it.
	(top level): Check for displaced stepping support.  Add displaced
	stepping on/off testing axis.

2016-02-01 18:48:04 +00:00

..

attach-into-signal.c

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attach-into-signal.exp

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attach-many-short-lived-threads.c

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attach-many-short-lived-threads.exp

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attach-stopped.c

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attach-stopped.exp

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bp_in_thread.c

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bp_in_thread.exp

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break-while-running.c

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break-while-running.exp

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clone-new-thread-event.c

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clone-new-thread-event.exp

Fix PR threads/19422 - show which thread caused stop

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clone-thread_db.c

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clone-thread_db.exp

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continue-pending-after-query.c

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continue-pending-after-query.exp

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continue-pending-status.c

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continue-pending-status.exp

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corethreads.c

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corethreads.exp

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create-fail.c

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create-fail.exp

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current-lwp-dead.c

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current-lwp-dead.exp

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dlopen-libpthread-lib.c

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dlopen-libpthread.c

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dlopen-libpthread.exp

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execl1.c

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execl.c

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execl.exp

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fork-child-threads.c

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fork-child-threads.exp

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fork-plus-threads.c

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fork-plus-threads.exp

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fork-thread-pending.c

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fork-thread-pending.exp

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forking-threads-plus-breakpoint.c

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forking-threads-plus-breakpoint.exp

Test gdb.threads/forking-threads-plus-breakpoint.exp with displaced stepping off

2016-02-01 18:48:04 +00:00

gcore-stale-thread.c

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gcore-stale-thread.exp

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gcore-thread.exp

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hand-call-in-threads.c

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hand-call-in-threads.exp

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hand-call-new-thread.c

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hand-call-new-thread.exp

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ia64-sigill.c

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ia64-sigill.exp

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info-threads-cur-sal-2.c

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interrupted-hand-call.c

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interrupted-hand-call.exp

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kill.c

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kill.exp

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killed.c

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killed.exp

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leader-exit.c

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leader-exit.exp

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linux-dp.c

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linux-dp.exp

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local-watch-wrong-thread.c

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local-watch-wrong-thread.exp

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Makefile.in

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manythreads.c

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manythreads.exp

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multi-create-ns-info-thr.exp

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multi-create.c

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multi-create.exp

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multiple-step-overs.c

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multiple-step-overs.exp

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names.c

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names.exp

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next-bp-other-thread.c

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next-bp-other-thread.exp

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next-while-other-thread-longjmps.c

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next-while-other-thread-longjmps.exp

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no-unwaited-for-left.c

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no-unwaited-for-left.exp

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non-stop-fair-events.exp

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pending-step.c

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pending-step.exp

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print-threads.c

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print-threads.exp

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process-dies-while-handling-bp.c

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process-dies-while-handling-bp.exp

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pthread_cond_wait.c

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pthread_cond_wait.exp

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pthreads.c

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pthreads.exp

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queue-signal.c

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queue-signal.exp

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reconnect-signal.c

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reconnect-signal.exp

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schedlock.c

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schedlock.exp

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siginfo-threads.c

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siginfo-threads.exp

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signal-command-handle-nopass.c

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signal-command-multiple-signals-pending.exp

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signal-delivered-right-thread.exp

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sigstep-threads.c

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sigthread.c

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sigthread.exp

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staticthreads.c

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staticthreads.exp

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step-bg-decr-pc-switch-thread.c

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step-bg-decr-pc-switch-thread.exp

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step-over-lands-on-breakpoint.c

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step-over-trips-on-watchpoint.c

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step-over-trips-on-watchpoint.exp

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stepi-random-signal.c

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stepi-random-signal.exp

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switch-threads.c

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switch-threads.exp

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thread_check.c

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thread_check.exp

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thread_events.c

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thread_events.exp

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thread-execl.c

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thread-execl.exp

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thread-find.exp

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thread-specific-bp.c

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thread-specific-bp.exp

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thread-specific.c

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thread-specific.exp

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thread-unwindonsignal.exp

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threadapply.c

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tls2.c

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watchpoint-fork-child.c

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watchpoint-fork-mt.c

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watchpoint-fork-st.c

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watchpoint-fork.exp

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watchpoint-fork.h

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watchthreads2.c

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