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And with that, we can switch the current UI to the UI whose input
descriptor woke up the event loop. IOW, if the user types in UI 2,
the event loop wakes up, switches to UI 2, and processes the input.
Next the user types in UI 3, the event loop wakes up and switches to
UI 3, etc.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* event-top.c (input_fd): Delete.
(stdin_event_handler): Switch to the UI whose input descriptor got
the event. Adjust to per-UI input_fd.
(gdb_setup_readline): Don't set the input_fd global. Adjust to
per-UI input_fd.
(gdb_disable_readline): Adjust to per-UI input_fd.
* event-top.h (input_fd): Delete declaration.
* linux-nat.c (linux_nat_terminal_inferior): Don't remove input_fd
from the event-loop here.
(linux_nat_terminal_ours): Don't register input_fd in the
event-loop here.
* main.c (captured_main): Adjust to per-UI input_fd.
* remote.c (remote_terminal_inferior): Don't remove input_fd from
the event-loop here.
(remote_terminal_ours): Don't register input_fd in the event-loop
here.
* target.c: Include top.h and event-top.h.
(target_terminal_inferior): Remove input_fd from the event-loop
here.
(target_terminal_ours): Register input_fd in the event-loop.
* top.h (struct ui) <input_fd>: New field.
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gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* cli/cli-script.c (execute_user_command, read_next_line)
(read_next_line): Adjust to per-UI instream.
* event-top.c (stdin_event_handler, command_handler)
(handle_line_of_input, command_line_handler)
(gdb_readline_no_editing_callback, async_sigterm_handler)
(gdb_setup_readline): Likewise.
* inflow.c: Include top.h.
(gdb_has_a_terminal, child_terminal_init_with_pgrp)
(gdb_save_tty_state, child_terminal_inferior)
(child_terminal_ours_1, copy_terminal_info): Use the main UI.
(initialize_stdin_serial): Adjust to per-UI instream.
* main.c (captured_command_loop, captured_main): Adjust to per-UI
instream.
* mi/mi-interp.c (mi_execute_command_wrapper): Likewise.
* python/python.c (python_interactive_command): Likewise.
* terminal.h (struct ui): Forward declare.
(initialize_stdin_serial): Add struct ui parameter.
* top.c (instream): Delete.
(do_restore_instream_cleanup, read_command_file, dont_repeat)
(gdb_readline_no_editing, command_line_input)
(input_from_terminal_p, gdb_init): Adjust to per-UI instream.
* top.h (struct ui) <instream>: New field.
(instream): Delete declaration.
(quit): Adjust to per-UI instream.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.gdb/selftest.exp (do_steps_and_nexts): Add new regexp.
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Async signal handlers have no connection to whichever was the current
UI, and thus always run on the main one.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* event-loop.c: Include top.h.
(invoke_async_signal_handlers): Switch to the main UI.
* event-top.c (main_ui_): Update comment.
(main_ui): New global.
* top.h (main_ui): Declare.
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When we have multiple consoles, MI channels, etc., then we need to
broadcast breakpoint hits, etc. to all UIs. In the past, I've
adjusted most of the run control to communicate events to the
interpreters through observer notifications, so events would be
properly sent to console and MI streams, in sync and async modes.
This patch does the next logical step -- have each interpreter's
observers output interpreter-specific info to _all_ UIs.
Note that when we have multiple instances of active cli/tui
interpreters, then the cli_interp and tui_interp globals no longer
work. This is addressed by this patch.
Also, the interpreters currently register some observers when resumed
and remove them when suspended. If we have multiple instances of the
interpreters, and they can be suspended/resumed at different,
independent times, that no longer works. What we instead do is always
install the observers, and then have the observers themselves know
when to do nothing.
An earlier prototype of this series did the looping over struct UIs in
common code, and then dispatched events to the interpreters through a
matching interp_on_foo method for each observer. That turned out a
lot more complicated than the present solution, as we'd end up with
having to create a new interp method every time some interpreter
wanted to listen to some observer notification, resulting in a lot of
duplicated make-work and more coupling than desirable.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* cli/cli-interp.c (cli_interp): Delete.
(as_cli_interp): New function.
(cli_on_normal_stop, cli_on_signal_received)
(cli_on_end_stepping_range, cli_on_signal_exited, cli_on_exited)
(cli_on_no_history): Send output to all CLI UIs.
(cli_on_sync_execution_done, cli_on_command_error): Skip output if
the top level interpreter is not a CLI.
(cli_interpreter_init): Don't set cli_interp or install observers
here.
(_initialize_cli_interp): Install observers here.
* event-top.c (main_ui_, ui_list): New globals.
(current_ui): Point to main_ui_.
(restore_ui_cleanup, switch_thru_all_uis_init)
(switch_thru_all_uis_cond, switch_thru_all_uis_next): New
functions.
* mi/mi-interp.c (as_mi_interp): New function.
(mi_interpreter_init): Don't install observers here.
(mi_on_sync_execution_done): Skip output if the top level
interpreter is not a MI.
(mi_new_thread, mi_thread_exit, mi_record_changed)
(mi_inferior_added, mi_inferior_appeared, mi_inferior_exit)
(mi_inferior_removed): Send output to all MI UIs.
(find_mi_interpreter, mi_interp_data): Delete.
(find_mi_interp): New function.
(mi_on_signal_received, mi_on_end_stepping_range)
(mi_on_signal_exited, mi_on_exited, mi_on_no_history): Send output
to all MI UIs.
(mi_on_normal_stop): Rename to ...
(mi_on_normal_stop_1): ... this.
(mi_on_normal_stop): Reimplement, sending output to all MI UIs.
(mi_traceframe_changed, mi_tsv_created, mi_tsv_deleted)
(mi_tsv_modified, mi_breakpoint_created, mi_breakpoint_deleted)
(mi_breakpoint_modified, mi_output_running_pid): Send output to
all MI UIs.
(mi_on_resume): Rename to ...
(mi_on_resume_1): ... this. Don't handle infcalls here.
(mi_on_resume): Reimplement, sending output to all MI UIs.
(mi_solib_loaded, mi_solib_unloaded, mi_command_param_changed)
(mi_memory_changed): Send output to all MI UIs.
(report_initial_inferior): Install observers here.
* top.h (struct ui) <next>: New field.
(ui_list): Declare.
(struct switch_thru_all_uis): New.
(switch_thru_all_uis_init, switch_thru_all_uis_cond)
(switch_thru_all_uis_next): Declare.
(SWITCH_THRU_ALL_UIS): New macro.
* tui/tui-interp.c (tui_interp): Delete global.
(as_tui_interp): New function.
(tui_on_normal_stop, tui_on_signal_received)
(tui_on_end_stepping_range, tui_on_signal_exited, tui_on_exited)
(tui_on_no_history): Send output to all TUI UIs.
(tui_on_sync_execution_done, tui_on_command_error): Skip output if
the top level interpreter is not a TUI.
(tui_init): Don't set tui_interp or install observers here.
(_initialize_tui_interp): Install observers here.
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If every UI instance has its own set of interpreters, then the current
scheme of creating the interpreters at GDB initialization time no
longer works. We need to create them whenever a new UI instance is
created.
The scheme implemented here has each interpreter register a factory
callback that when called creates a new instance of a specific
interpreter type. Then, when some code in gdb looks up an interpreter
(always by name), if there's none yet, the factory method is called to
construct one.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* cli/cli-interp.c (cli_uiout): Delete, moved into ...
(struct cli_interp): ... this new structure.
(cli_on_normal_stop, cli_on_signal_received)
(cli_on_end_stepping_range, cli_on_signal_exited, cli_on_exited)
(cli_on_no_history): Use interp_ui_out.
(cli_interpreter_init): If top level, set the cli_interp global.
(cli_interpreter_init): Return the interp's data instead of NULL.
(cli_interpreter_resume, cli_interpreter_exec, cli_ui_out): Adjust
to cli_uiout being in the interpreter's data.
(cli_interp_procs): New, factored out from _initialize_cli_interp.
(cli_interp_factory): New function.
(_initialize_cli_interp): Call interp_factory_register.
* interps.c (get_interp_info): New, factored out from ...
(get_current_interp_info): ... this.
(interp_new): Add parameter 'data'. Store it.
(struct interp_factory): New function.
(interp_factory_p): New typedef. Define a VEC_P.
(interpreter_factories): New global.
(interp_factory_register): New function.
(interp_add): Add 'ui' parameter. Use get_interp_info and
interp_lookup_existing.
(interp_lookup): Rename to ...
(interp_lookup_existing): ... this. Add 'ui' parameter. Don't
check for NULL or empty name here.
(interp_lookup): Add 'ui' parameter and reimplement.
(interp_set_temp, interpreter_exec_cmd): Adjust.
(interpreter_completer): Complete on registered interpreter
factories instead of interpreters.
* interps.h (interp_factory_func): New typedef.
(interp_factory_register): Declare.
(interp_new, interp_add): Adjust.
(interp_lookup): Declare.
* main.c (captured_main): Adjust.
* mi/mi-interp.c (mi_cmd_interpreter_exec): Adjust.
(mi_interp_procs): New, factored out from
_initialize_mi_interp.
(mi_interp_factory): New function.
* python/python.c (execute_gdb_command): Adjust.
* tui/tui-interp.c (tui_init): If top level, set the tui_interp
global.
(tui_interp_procs): New.
(tui_interp_factory): New function.
(_initialize_tui_interp): Call interp_factory_register.
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Make each UI have its own interpreter list, top level interpreter,
current interpreter, etc. The "interpreter_async" global is not
really specific to an struct interp (it crosses interpreter-exec ...),
so I moved it to "struct ui" directly, while the other globals were
left hidden in interps.c, opaque to the rest of GDB.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1): Access the current UI's
async field instead of the interpreter_async global.
* cli/cli-script.c (execute_user_command, while_command)
(if_command, script_from_file): Likewise.
* compile/compile.c: Include top.h instead of interps.h.
(compile_file_command, compile_code_command)
(compile_print_command): Access the current UI's async field
instead of the interpreter_async global.
* guile/guile.c: Include top.h instead of interps.h.
(guile_repl_command, guile_command, gdbscm_execute_gdb_command):
Access the current UI's async field instead of the
interpreter_async global.
* guile/scm-ports.c: Include top.h instead of interps.h.
(ioscm_with_output_to_port_worker): Access the current UI's async
field instead of the interpreter_async global.
* inf-loop.c (inferior_event_handler): Likewise.
* infcall.c (run_inferior_call): Likewise.
* infrun.c (reinstall_readline_callback_handler_cleanup)
(fetch_inferior_event): Likewise.
* interps.c (interpreter_async): Delete.
(struct ui_interp_info): New.
(get_current_interp_info): New function.
(interp_list, current_interpreter, top_level_interpreter_ptr):
Delete.
(interp_add, interp_set, interp_lookup, interp_ui_out)
(current_interp_set_logging, interp_set_temp)
(current_interp_named_p): Adjust to per-UI interpreters.
(command_interpreter): Delete.
(command_interp, current_interp_command_loop, interp_quiet_p)
(interp_exec, interpreter_exec_cmd, interpreter_completer)
(top_level_interpreter, top_level_interpreter_data): Adjust to
per-UI interpreters.
* interps.h (interpreter_async): Delete.
* main.c (captured_command_loop): Access the current UI's async
field instead of the interpreter_async global.
* python/python.c (python_interactive_command, python_command)
(execute_gdb_command): Likewise.
* top.c (maybe_wait_sync_command_done, execute_command_to_string):
Access the current UI's async field instead of the
interpreter_async global.
* top.h (struct tl_interp_info): Forward declare.
(struct ui) <interp_info, async>: New fields.
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We need to have these send output to the proper UI.
However, this patch still make them look like globals. Kind of like
__thread variables, if you will. Changing everything throughout to
write something like current_ui->gdb_stdout instead would be massive
overkill, IMNSHO.
This leaves gdb_stdtargin/stdtarg/stdtargerr global, but maybe that was a
mistake, I'm not sure -- IIRC, MI formats target I/O differently, so
if we have a separate MI channel, then I guess target output should go
there instead of to gdb's stdout. OTOH, maybe GDB should send that
instead to "set inferior-tty", instead of multiplexing it over MI. We
can always fix those later when it gets clearer where they should go.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* main.c (gdb_stdout, gdb_stderr, gdb_stdlog, gdb_stdin): Delete
globals.
(gen_ret_current_ui_field_ptr): New macro. Use it to generate
wrappers for gdb_stdout, gdb_stderr, gdb_stdlog and gdb_stdin.
* top.h (struct ui) <m_gdb_stdout, m_gdb_stdin, m_gdb_stderr,
m_gdb_stdlog>: New fields.
(current_ui_gdb_stdout_ptr, current_ui_gdb_stdin_ptr)
(current_ui_gdb_stderr_ptr, current_ui_gdb_stdlog_ptr): Declare.
(gdb_stdout, gdb_stdin, gdb_stderr, gdb_stdlog): Reimplement as
macros.
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This is a step towards supporting multiple consoles/MIs, each on its
own stdio streams / terminal.
See intro comment in top.h.
(I've had trouble picking a name for this object. I've started out
with "struct console" originally. But then this is about MI as well,
and there's "interpreter-exec console", which is specifically about
the CLI...
So I changed to "struct terminal", but, then we have a terminal object
that works when the input is not a terminal as well ...
Then I sort of gave up and renamed it to "struct top_level". But it
then gets horribly confusing when we talk about the "top level
interpreter that's running on the current top level".
In the end, I realized we're already sort of calling this "ui", in
struct ui_out, struct ui_file, and a few coments here and there.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* event-top.c: Update readline-related comments.
(input_handler, call_readline): Delete globals.
(gdb_rl_callback_handler): Call the current UI's input_handler
method.
(change_line_handler): Adjust to set current UI's properties
instead of globals.
(current_ui_, current_ui): New globals.
(get_command_line_buffer): Rewrite to refer to the current UI.
(stdin_event_handler): Adjust to call the call_readline method of
the current UI.
(gdb_readline_no_editing_callback): Adjust to call the current UI's
input_handler method.
(gdb_setup_readline): Adjust to set current UI's properties
instead of globals.
* event-top.h (call_readline, input_handler): Delete declarations.
* mi/mi-interp.c (mi_interpreter_resume): Adjust to set current
UI's properties instead of globals.
* top.c (gdb_readline_wrapper_cleanup): Adjust to set current UI's
properties instead of globals.
(gdb_readline_wrapper): Adjust to call and set current UI's
methods instead of globals.
* top.h: Include buffer.h and event-loop.h.
(struct ui): New struct.
(current_ui): New declaration.
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of \"e.full_name\" in current context"
Looking at testsuite results, I noticed this warning in an MI test:
~"\nCatchpoint "
~"2, "
&"warning: failed to get exception name: No definition of \"e.full_name\" in current context.\n"
~"exception at 0x000000000040192d in foo () at /home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb:20\n"
~"20\t raise Constraint_Error; -- SPOT1\n"
*stopped,reason="breakpoint-hit",disp="keep",bkptno="2",exception-name="CONSTRAINT_ERROR",frame={addr="0x000000000040192d",func="foo",args=[],file="/home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb",fullname="/home/pedro/brno/pedro/gdb/mygit/src/gdb/testsuite/gdb.ada/mi_catch_ex/foo.adb",line="20"},thread-id="1",stopped-threads="all",core="5"
(gdb)
PASS: gdb.ada/mi_catch_ex.exp: continue until CE caught by all-exceptions catchpoint
The problem is that:
- MI prints the breakpoint hit twice: once on the MI stream;
another time on the console stream.
- After printing the Ada catchpoint hit, gdb selects a non-current
frame, from within the catchpoint's print_it routine.
So the second time the breakpoint is printed, the selected frame is no
longer the current frame, and then evaluating e.full_name in
ada_exception_name_addr fails.
This commit fixes the problem and enhances the gdb.ada/mi_catch_ex.exp
test to make sure the catchpoint hit is printed correctly on the
console stream too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_exception_name_addr_1): Add comment.
(print_it_exception): Select the current frame.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.ada/mi_catch_ex.exp (continue_to_exception): New procedure.
(top level): Use it instead of mi_execute_to.
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Similarly to 5068630ad34dce5fefbe68d70d3a50cd8b92f71e
(gdb.python/py-events.exp and normal_stop observers ordering) [1],
this commit makes the gdb.python/py-mi-events.exp test not rely on
order in which MI and Python observers run, or even on where each
observer sends its output to.
This shows up as a problem when testing with MI running as a separate
terminal, for example, where Python event output and MI output go to
different channels, even. But in any case, relying on the order in
which observers run is always going to be fragile.
The fix is to save the string output in the handlers in some variables
and then having MI print them explicitly, instead of printing them
directly from the Python events.
Tested on x86_64 Fedora 23.
https://sourceware.org/ml/gdb-patches/2015-07/msg00290.html
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.python/py-mi-events-gdb.py (stop_handler_str)
(cont_handler_str): New.
(signal_stop_handler): Set stop_handler_str instead of printing to
stdout.
(continue_handler): Set cont_handler_str instead of printing to
stdout.
* gdb.python/py-mi-events.exp: Ues mi_execute_to instead of
mi_send_resuming_command. Print stop_handler_str and
cont_handler_str instead of expecting the python events print
directly.
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Originally intended to be committed on 2013-01-17 in
675921c059dbaddd02ab2eb8a1eaf77b3ac727dd (Test case for the
jit-reader), but by mistake the files were not added. Fortunately
they still work.
gdb/testsuite/ChangeLog:
2016-06-17 Sanjoy Das <sanjoy@playingwithpointers.com>
* gdb.base/jit-reader.exp: New file.
* gdb.base/jithost.c: New file.
* gdb.base/jithost.h: New file.
* gdb.base/jitreader.c : New file.
* gdb.base/jit-protocol.h: New file.
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This patch extends step-over-syscall.exp by setting different values to
detach-on-fork and follow-fork.
gdb/testsuite:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* gdb.base/step-over-syscall.exp (break_cond_on_syscall): New
parameters follow_fork and detach_on_fork. Set follow-fork-mode
and detach-on-fork. Adjust tests.
(top level): Invoke break_cond_on_syscall with combinations of
syscall, follow-fork-mode and detach-on-fork.
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When a thread is doing step-over with reinsert breakpoint, and the
instruction executed is a syscall doing vfork, both parent and child
share the memory, so the reinsert breakpoint in the space is visible
to both of them. Also, removing the reinsert breakpoints from the
child will effectively remove them from the parent. We should
carefully manipulate reinsert breakpoints for both processes.
What we are doing here is that
- uninsert reinsert breakpoints from the parent before cloning the
breakpoint list. We use "uninsert" instead of "remove", because
we need to "reinsert" them back after vfork is done. In fact,
"uninsert" removes them from both child and parent process space.
- reinsert breakpoints in parent process are still copied to child's
breakpoint list,
- remove them from child's breakpoint list as what we did for fork,
at this point, reinsert breakpoints are removed from the child and
the parent, but they are still tracked by the parent's breakpoint
list,
- once vfork is done, "reinsert" them back to the parent,
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (handle_extended_wait): Call
uninsert_reinsert_breakpoints for the parent process. Remove
reinsert breakpoints from the child process. Reinsert them to
the parent process when vfork is done.
* mem-break.c (uninsert_reinsert_breakpoints): New function.
(reinsert_reinsert_breakpoints): New function.
* mem-break.h (uninsert_reinsert_breakpoints): Declare
(reinsert_reinsert_breakpoints): Declare.
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When a thread is stepping over a syscall instruction with software
single step, GDBserver inserts reinsert breakpoints at the next pcs.
If the syscall call is fork, the forked child has reinsert breakpoint
in its space, and GDBserver clones parent's breakpoint list to child's.
When GDBserver resumes the child, its bp_reinsert is zero, but has
reinsert breakpoints, so the following assert is triggered if I apply
the patch extending step-over-syscall.exp.
gdb/gdbserver/linux-low.c:4292: A problem internal to GDBserver has been detected.^M
void linux_resume_one_lwp_throw(lwp_info*, int, int, siginfo_t*): Assertion `!has_reinsert_breakpoints (proc)' failed.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (handle_extended_wait): If the parent is doing
step-over, remove the reinsert breakpoints from the forked child.
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This patch fixes a GDBserver crash when one thread is stepping over
a syscall instruction which is exit. Step-over isn't finished due
to the exit, but GDBserver doesn't clean up the state of step-over,
so in the wait next time, GDBserver will wait on step_over_bkpt,
which is already exited, and GDBserver crashes because
'requested_child' is NULL. See gdbserver logs below,
Need step over [LWP 14858]? yes, found breakpoint at 0x2aaaaad91307^M
proceed_all_lwps: found thread 14858 needing a step-over^M
Starting step-over on LWP 14858. Stopping all threads^M
>>>> entering void stop_all_lwps(int, lwp_info*)
....
<<<< exiting void stop_all_lwps(int, lwp_info*)^M
Done stopping all threads for step-over.^M
pc is 0x2aaaaad91307^M
Writing 0f to 0x2aaaaad91307 in process 14858^M
Could not find fast tracepoint jump at 0x2aaaaad91307 in list (uninserting).^M
pending reinsert at 0x2aaaaad91307^M
step from pc 0x2aaaaad91307^M
Resuming lwp 14858 (step, signal 0, stop not expected)^M
# Start step-over for LWP 14858
>>>> entering ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)
....
LLFE: 14858 exited.
...
<<<< exiting ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)
# LWP 14858 exited
.....
>>>> entering ptid_t linux_wait_1(ptid_t, target_waitstatus*, int)^M
linux_wait_1: [<all threads>]^M
step_over_bkpt set [LWP 14858.14858], doing a blocking wait
# but step_over_bkpt is still LWP 14858, which is wrong
The fix is to finish step-over if it is ongoing, and unsuspend other
threads. Without the fix in linux-low.c, GDBserver will crash in
with running gdb.base/step-over-exit.exp.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (unsuspend_all_lwps): Declare.
(linux_low_filter_event): If thread exited, call finish_step_over.
If step-over is finished, unsuspend other threads.
gdb/testsuite:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* gdb.base/step-over-exit.c: New.
* gdb.base/step-over-exit.exp: New.
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This patch adds more asserts, so the incorrect or sub-optimal
reinsert breakpoints manipulations (from the tests in the following
patches) can trigger them.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (linux_resume_one_lwp_throw): Assert
has_reinsert_breakpoints returns false.
* mem-break.c (delete_disabled_breakpoints): Assert
bp type isn't reinsert_breakpoint.
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This patch adds some sanity check that reinsert breakpoints must be
there when doing step-over on software single step target. The check
triggers an assert when running forking-threads-plus-breakpoint.exp
on arm-linux target,
gdb/gdbserver/linux-low.c:4714: A problem internal to GDBserver has been detected.^M
int finish_step_over(lwp_info*): Assertion `has_reinsert_breakpoints ()' failed.
the error happens when GDBserver has already resumed a thread of
process A for step-over (and wait for it hitting reinsert breakpoint),
but receives detach request for process B from GDB, which is shown in
the backtrace below,
(gdb) bt
#2 0x000228aa in finish_step_over (lwp=0x12bbd98) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4703
#3 0x00025a50 in finish_step_over (lwp=0x12bbd98) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4749
#4 complete_ongoing_step_over () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:4760
#5 linux_detach (pid=25228) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/linux-low.c:1503
#6 0x00012bae in process_serial_event () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3974
#7 handle_serial_event (err=<optimized out>, client_data=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:4347
#8 0x00016d68 in handle_file_event (event_file_desc=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:429
#9 0x000173ea in process_event () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:184
#10 start_event_loop () at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/event-loop.c:547
#11 0x0000aa2c in captured_main (argv=<optimized out>, argc=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3719
#12 main (argc=<optimized out>, argv=<optimized out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/server.c:3804
the sanity check tries to find the reinsert breakpoint from process B,
but nothing is found. It is wrong, we need to search in process A,
since we started step-over of a thread of process A.
(gdb) p lwp->thread->entry.id
$3 = {pid = 25120, lwp = 25131, tid = 0}
(gdb) p current_thread->entry.id
$4 = {pid = 25228, lwp = 25228, tid = 0}
This patch switched current_thread to the thread we are doing step-over
in finish_step_over.
gdb/gdbserver:
2016-06-17 Yao Qi <yao.qi@linaro.org>
* linux-low.c (maybe_hw_step): New function.
(linux_resume_one_lwp_throw): Call maybe_hw_step.
(finish_step_over): Switch current_thread to lwp temporarily,
and assert has_reinsert_breakpoints returns true.
(proceed_one_lwp): Call maybe_hw_step.
* mem-break.c (has_reinsert_breakpoints): New function.
* mem-break.h (has_reinsert_breakpoints): Declare.
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gdb/ChangeLog:
* Makefile.in (ALL_TARGET_OBS): Add nds32-tdep.o.
(HFILES_NO_SRCDIR): Add nds32-tdep.h.
(ALLDEPFILES): Add nds32-tdep.c.
* NEWS: Mention new NDS32 port.
* configure.tgt: Add NDS32.
* nds32-tdep.c: New file.
* nds32-tdep.h: New file.
* features/Makefile (XMLTOC): Add nds32.xml.
* features/nds32-core.xml: New file.
* features/nds32-fpu.xml: New file.
* features/nds32-system.xml: New file.
* features/nds32.c: New file (generated).
* features/nds32.xml: New file.
gdb/doc/ChangeLog:
* gdb.texinfo (Standard Target Features): Document NDS32 features.
(NDS32 Features): New Section.
gdb/testsuite/ChangeLog:
* gdb.base/float.exp: Add target check for nds32*-*-*.
* gdb.xml/tdesc-regs.exp: Set core-regs for nds32*-*-*.
|
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Type lengths are unsigned, so they are always greater than or equal to
zero. A check against the length of 'tgt_type' is retained to prevent
dividing by zero.
gdb/ChangeLog:
* v850-tdep.c (v850_use_struct_convention): Trim type length checks.
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gdb/ChangeLog:
* tui/tui-stack.c (tui_show_frame_info): Fix type mismatch.
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If the instruction in this case does not include an RA field, then 'ra'
is used uninitialized. Use the same idiom used elsewhere in this file of
initializing ra to zero before check for an RA field.
gdb/ChangeLog:
* rs6000-tdep.c (ppc_process_record_op31): Initialize ra.
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If a target does not support making function calls from GDB then in a
number of test files, we currently report an XFAIL and skip some, or all
of the tests. This commit changes the XFAIL to an UNSUPPORTED as this
seems more appropriate in these cases.
Some of the tests used bug ID 2416 to be reported in the XFAIL. In the
current GDB bugzilla bug 2416 has nothing to do with calling target
functions from GDB.
gdb/testsuite/ChangeLog:
* gdb.base/call-ar-st.exp: Report unsupported rather than xfail
for unsupported target features.
* gdb.base/call-rt-st.exp: Likewise.
* gdb.base/call-sc.exp: Likewise.
* gdb.base/call-signal-resume.exp: Likewise.
* gdb.base/call-strs.exp: Likewise.
* gdb.base/callexit.exp: Likewise.
* gdb.base/callfuncs.exp: Likewise.
* gdb.base/nodebug.exp: Likewise.
* gdb.base/printcmds.exp: Likewise.
* gdb.base/ptype.exp: Likewise.
* gdb.base/structs.exp: Likewise.
* gdb.base/unwindonsignal.exp: Likewise.
* gdb.cp/gdb2495.exp: Likewise.
* gdb.cp/templates.exp: Likewise.
* gdb.cp/virtfunc.exp: Likewise.
* gdb.threads/hand-call-in-threads.exp: Likewise.
* gdb.threads/interrupted-hand-call.exp: Likewise.
* gdb.threads/thread-unwindonsignal.exp: Likewise.
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* gdbtypes.c (replace_type): Fix assertion.
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While working on the Rust support, I happened to notice that arch_type
and related functions take "char *" arguments, where "const char *"
would be more correct. This patch fixes this oversight. Tested by
rebuilding.
2016-06-10 Tom Tromey <tom@tromey.com>
* gdbtypes.c (arch_type, arch_integer_type, arch_character_type)
(arch_boolean_type, arch_float_type, arch_complex_type)
(arch_flags_type, append_flags_type_field)
(append_flags_type_flag, arch_composite_type)
(append_composite_type_field_raw)
(append_composite_type_field_aligned)
(append_composite_type_field): Make "name" parameter const.
* gdbtypes.h (arch_type, arch_integer_type, arch_character_type)
(arch_boolean_type, arch_float_type, arch_complex_type)
(append_composite_type_field, append_composite_type_field_aligned)
(append_composite_type_field_raw, arch_flags_type)
(append_flags_type_field, append_flags_type_flag): Constify.
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PR rust/20110 concerns the type of an integer constant that is too
large for "i32", the default integer type. This patch changes the
type of such a constant to i64. This is important because such values
are often addresses, so truncating them by default is unfriendly.
Built and regtested on x86-64 Fedora 23.
2016-06-10 Tom Tromey <tom@tromey.com>
PR rust/20110:
* rust-exp.y (lex_number): Don't truncate large numbers to i32.
2016-06-10 Tom Tromey <tom@tromey.com>
PR rust/20110:
* gdb.rust/expr.exp: Add test for integer constant larger than
i32.
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I noticed that the rust-exp handling in the Makefile differed from
that of other .y files. I believe I noticed this by seeing a stray
"rm" in the build log.
This patch changes the Makefile to bring the rust-exp handling in line
with that of other .y files.
2016-06-10 Tom Tromey <tom@tromey.com>
* Makefile.in (COMMON_OBS): Remove rust-exp.o.
(YYFILES): Add rust-exp.c.
(YYOBJ): Add rust-exp.o.
(local-maintainer-clean): Remove rust-exp.c.
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Non-local references in nested functions are usually implemented
by using DWARF static link. This feature was added
with commit 63e43d3aedb8b1112899c2d0ad74cbbee687e5d6
(DWARF: handle non-local references in nested functions) but
a testcase was missing in Fortran.
2016-06-10 Bernhard Heckel <bernhard.heckel@intel.com>
gdb/Testsuite/Changelog:
* gdb.fortran/nested-funcs.exp: New.
* gdb.fortran/nested-funcs.f90: New.
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This change adds support for specifying a negative repeat count to
all the formats of the 'x' command to examine memory backward.
A new testcase 'examine-backward' is added to cover this new feature.
Here's the example output from the new feature:
<format 'i'>
(gdb) bt
#0 Func1 (n=42, p=0x40432e "hogehoge") at main.cpp:5
#1 0x00000000004041fa in main (argc=1, argv=0x7fffffffdff8) at main.cpp:19
(gdb) x/-4i 0x4041fa
0x4041e5 <main(int, char**)+11>: mov %rsi,-0x10(%rbp)
0x4041e9 <main(int, char**)+15>: lea 0x13e(%rip),%rsi
0x4041f0 <main(int, char**)+22>: mov $0x2a,%edi
0x4041f5 <main(int, char**)+27>: callq 0x404147
<format 'x'>
(gdb) x/-4xw 0x404200
0x4041f0 <main(int, char**)+22>: 0x00002abf 0xff4de800 0x76e8ffff 0xb8ffffff
(gdb) x/-4
0x4041e0 <main(int, char**)+6>: 0x7d8910ec 0x758948fc 0x358d48f0 0x0000013e
gdb/ChangeLog:
* NEWS: Mention that GDB now supports a negative repeat count in
the 'x' command.
* printcmd.c (decode_format): Allow '-' in the parameter
"string_ptr" to accept a negative repeat count.
(find_instruction_backward): New function.
(read_memory_backward): New function.
(integer_is_zero): New function.
(find_string_backward): New function.
(do_examine): Use new functions to examine memory backward.
(_initialize_printcmd): Mention that 'x' command supports a negative
repeat count.
gdb/doc/ChangeLog:
* gdb.texinfo (Examining Memory): Document negative repeat
count in the 'x' command.
gdb/testsuite/ChangeLog:
* gdb.base/examine-backward.c: New file.
* gdb.base/examine-backward.exp: New file.
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gdb/ChangeLog:
* MAINTAINERS (Write After Approval): Add Toshihito Kikuchi.
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PR python/19819 concerns some unused global variables in
py-xmethods.c. This patch deletes the unused globals.
Tested by rebuilding.
2016-06-09 Tom Tromey <tom@tromey.com>
PR python/19819:
* python/py-xmethods.c (invoke_method_name)
(py_get_result_type_method_name, py_invoke_method_name): Remove.
(gdbpy_initialize_xmethods): Don't initialize
py_invoke_method_name, py_get_result_type_method_name.
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gdb/ChangeLog:
* mi/mi-interp.c (mi_record_changed): Add missing braces.
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|
2016-06-07 Bernhard Heckel <bernhard.heckel@intel.com>
gdb/Changelog:
* findvar.c (follow_static_link): Check for valid pointer.
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Eclipse CDT now supports enabling execution recording using two methods
(full and btrace) and both formats for btrace (bts and pt). In the
event that recording is enabled behind the back of the GUI (by the user
on the command line, or a script), we need to know which method/format
are being used, so it can be correctly reflected in the interface. This
patch adds this information to the =record-started async record.
Before:
=record-started,thread-group="i1"
After:
=record-started,thread-group="i1",method="btrace",format="bts"
=record-started,thread-group="i1",method="btrace",format="pt"
=record-started,thread-group="i1",method="full"
The "format" field is only present when the current method supports
multiple formats (only the btrace method as of now).
gdb/ChangeLog:
* NEWS: Mention the new fields in =record-started.
* common/btrace-common.h (btrace_format_short_string): New function
declaration.
* common/btrace-common.c (btrace_format_short_string): New
function.
* mi/mi-interp.c (mi_record_changed): Output method and format
fields in the =record-started record.
* record-btrace.c (record_btrace_open): Adapt record_changed
notification.
* record-full.c (record_full_open): Likewise.
* record.c (cmd_record_stop): Likewise.
gdb/doc/ChangeLog:
* gdb.texinfo (GDB/MI Async Records): Document method and
format fields in =record-started.
* observer.texi (record_changed): Add method and format
parameters.
gdb/testsuite/ChangeLog:
* gdb.mi/mi-record-changed.exp: Adjust =record-started output
matching.
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gdb/ChangeLog:
2016-06-02 Jon Turney <jon.turney@dronecode.org.uk>
* windows-nat.c (handle_output_debug_string): Return type of
gdb_signal_from_host() is gdb_signal, not an int.
(windows_get_exec_module_filename): Add pointer casts for C++.
gdb/gdbserver/ChangeLog:
2016-06-02 Jon Turney <jon.turney@dronecode.org.uk>
* win32-low.c (win32_create_inferior): Add pointer casts for C++.
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This fixes PR python/18984.
The bug is that gdbpy_solib_name uses GDB_PY_LL_ARG, whereas it should
use GDB_PY_LLU_ARG to avoid overflow.
Built and tested on x86-64 Fedora 23.
2016-06-02 Tom Tromey <tom@tromey.com>
PR python/18984:
* python/python.c (gdbpy_solib_name): Use GDB_PY_LLU_ARG.
2016-06-02 Tom Tromey <tom@tromey.com>
PR python/18984:
* gdb.python/py-shared.exp: Add solib_name test.
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gdb/testsuite/ChangeLog:
* gdb.mi/mi-memory-changed.exp: Fix filename passed to untested.
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... and fix Ctrl-C races.
The current remote-fileio.c SIGINT/EINTR code can lose Ctrl-C --
there's a period where SIG_IGN is installed as signal handler, for
example.
Since:
- remote.c no longer installs a custom SIGINT handler;
- The current remote-fileio.c SIGINT handler is basically the same as
the default SIGINT handler (event-top.c:handle_sigint), in
principle, except that instead of setting the quit flag, it sets a
separate flag.
I think we should be able to completely remove the remote-fileio.c
SIGINT handler, and centralize on the quit flag, thus fixing the
Ctrl-C race.
gdb/ChangeLog:
yyyy-mm-dd Pedro Alves <palves@redhat.com>
* remote-fileio.c (remote_fio_ctrl_c_flag, remote_fio_sa)
(remote_fio_osa)
(remote_fio_ofunc, remote_fileio_sig_init, remote_fileio_sig_set)
(remote_fileio_sig_exit, remote_fileio_ctrl_c_signal_handler):
Delete.
(remote_fileio_o_quit_handler): New global.
(remote_fileio_quit_handler): New function.
(remote_fileio_reply): Check the quit flag instead of the custom
'remote_fio_ctrl_c_flag' flag. Restore the quit handler instead
of changing the SIGINT handler.
(do_remote_fileio_request): Override the quit handler instead of
changing the SIGINT handler.
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in libiberty's xmalloc code.
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Patch 7eb895307f53 Skip unwritable frames in command "finish"
skips non-writable frames in addition to tailcall frames.
If skip_tailcall_frames already returns NULL, skip_unwritable_frames
will be called with a NULL frame and crash in get_frame_arch. This is
caught by gdb.btrace/tailcall-only.exp.
Further, if we ever end up with a mixture of tailcall and non-writable
frames, we may not skip all of them, as intended.
Loop over skip_tailcall_frames and skip_unwritable_frames as long as at least
one of them makes progress.
gdb/
* infcmd.c (skip_finish_frames): New.
(finish_command): Call skip_finish_frames.
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As reported in PR 19998, after type ctrl-c, GDB hang there and does
not send interrupt. It causes a fail in gdb.base/interrupt.exp.
All targets support remote fileio should be affected.
When we type ctrc-c, SIGINT is handled by remote_fileio_sig_set,
as shown below,
#0 remote_fileio_sig_set (sigint_func=0x4495d0 <remote_fileio_ctrl_c_signal_handler(int)>) at /home/yao/SourceCode/gnu/gdb/git/gdb/remote-fileio.c:325
#1 0x00000000004495de in remote_fileio_ctrl_c_signal_handler (signo=<optimised out>) at /home/yao/SourceCode/gnu/gdb/git/gdb/remote-fileio.c:349
#2 <signal handler called>
#3 0x00007ffff647ed83 in __select_nocancel () at ../sysdeps/unix/syscall-template.S:81
#4 0x00000000005530ce in interruptible_select (n=10, readfds=readfds@entry=0x7fffffffd730, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0,
timeout=timeout@entry=0x0) at /home/yao/SourceCode/gnu/gdb/git/gdb/event-top.c:1017
#5 0x000000000061ab20 in stdio_file_read (file=<optimised out>, buf=0x12d02e0 "\n\022-\001", length_buf=16383)
at /home/yao/SourceCode/gnu/gdb/git/gdb/ui-file.c:577
#6 0x000000000044a4dc in remote_fileio_func_read (buf=0x12c0360 "") at /home/yao/SourceCode/gnu/gdb/git/gdb/remote-fileio.c:583
#7 0x0000000000449598 in do_remote_fileio_request (uiout=<optimised out>, buf_arg=buf_arg@entry=0x12c0340)
at /home/yao/SourceCode/gnu/gdb/git/gdb/remote-fileio.c:1179
we don't set quit_serial_event,
do
{
res = gdb_select (n, readfds, writefds, exceptfds, timeout);
}
while (res == -1 && errno == EINTR);
if (res == 1 && FD_ISSET (fd, readfds))
{
errno = EINTR;
return -1;
}
return res;
we can't go out of the loop above, and that is why GDB can't send
interrupt.
Recently, we stop throwing exception from SIGINT handler
(remote_fileio_ctrl_c_signal_handler)
https://sourceware.org/ml/gdb-patches/2016-03/msg00372.html, which
is correct, because gdb_select is interruptible. However, in the
same patch series, we add interruptible_select later as a wrapper
to gdb_select, https://sourceware.org/ml/gdb-patches/2016-03/msg00375.html
and it is not interruptible (because of the loop in it) unless
select/poll-able file descriptors are marked.
This fix in this patch is to call quit_serial_event_set, so that we can
go out of the loop above, return -1 and set errno to EINTR.
2016-06-01 Yao Qi <yao.qi@linaro.org>
PR remote/19998
* remote-fileio.c (remote_fileio_ctrl_c_signal_handler): Call
quit_serial_event_set.
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gdb/ChangeLog:
GDB 7.11.1 released.
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https://sourceware.org/bugzilla/show_bug.cgi?id=19893
I've traced the main source of the problem to pieced_value_funcs.coerce_ref not being
implemented. Since gdb always assumes references are implemented as pointers, this
causes it to think that it's dealing with a NULL pointer, thus breaking any operations
involving synthetic references.
What I did here was implementing pieced_value_funcs.coerce_ref using some of the synthetic
pointer handling code from indirect_pieced_value, as Pedro suggested. I also made a few
adjustments to the reference printing code so that it correctly shows either the address
of the referenced value or (if it's non-addressable) the "<synthetic pointer>" string.
I also wrote some unit tests based on Dwarf::assemble; these took a while to make
because in most cases I needed a synthetic reference to a physical variable. Additionally,
I started working on a unit test for classes that have a vtable, but ran into a few issues
so that'll probably go in a future patch. One thing that should definitely be fixed is that
proc function_range (called for MACRO_AT_func) will always try to compile/link using gcc
with the default options instead of g++, thus breaking C++ compilations that require e.g. libstdc++.
gdb/ChangeLog:
* dwarf2loc.c (coerce_pieced_ref, indirect_synthetic_pointer,
fetch_const_value_from_synthetic_pointer): New functions.
(indirect_pieced_value): Move lower half to indirect_synthetic_pointer.
(pieced_value_funcs): Implement coerce_ref.
* valops.c (value_addr): Call coerce_ref for synthetic references.
* valprint.c (valprint_check_validity): Return true for synthetic
references. Also, don't show "<synthetic pointer>" if they reference
addressable values.
(generic_val_print_ref): Handle synthetic references. Also move some
code to print_ref_address.
(print_ref_address, get_value_addr_contents): New functions.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/implref.exp: Rename to...
* gdb.dwarf2/implref-const.exp: ...this. Also add more test statements.
* gdb.dwarf2/implref-array.c: New file.
* gdb.dwarf2/implref-array.exp: Likewise.
* gdb.dwarf2/implref-global.c: Likewise.
* gdb.dwarf2/implref-global.exp: Likewise.
* gdb.dwarf2/implref-struct.c: Likewise.
* gdb.dwarf2/implref-struct.exp: Likewise.
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This patch adds tests for emit operations with 64 bit values. It takes
special care to avoid mistakes that one could make on a 32bit architecture
using 64bit values.
gdb/testsuite/ChangeLog:
* gdb.trace/trace-condition.exp: Add 64bit tests.
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|
This patch add variable length tests for emit_ref by reading the variable
passed as argument of 8 to 64 bit.
gdb/testsuite/ChangeLog:
* gdb.trace/trace-condition.c (marker): Adapt signature to 8 to 64
bits types.
(main): Adapt to 8 to 64 bits types.
* gdb.trace/trace-condition.exp: Add new tests.
|
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This patch adds coverage for emit_less_unsigned.
gdb/testsuite/ChangeLog:
* gdb.trace/trace-condition.exp: Add emit_less_unsigned test.
|
|
This patch moves conditional tests that were done in ftrace.exp to
trace-condition.exp.
Note that emit_ref is now tested by the anarg local variable there is no
need to test the register directly.
All emit calls have been tested using asserts before / after the move, to
ensure that the tests cover the same functions.
Note that these function were not covered before and are still not:
emit_gt_goto, emit_lt_goto, emit_pop, emit_unsigned_less.
gdb/testsuite/ChangeLog:
* gdb.trace/ftrace.exp (test_ftrace_condition): Remove.
Move condition tests...
* gdb.trace/trace-condition.exp: Here.
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In trace-condition.exp, tests are done by doing a conditional tracepoint
and validating that the trace contains all the frames that could be
collected if that condition is true.
E.g. test_tracepoints $trace_command "21 + 21 == 42" 10
This will always return true and collect the 10 frames possible to collect
with the test program.
However, if the condition evaluation is broken such that the condition is
unconditional we will not notice this problem.
This patch adds counter-cases to such conditions like so:
$trace_command "21 + 11 == 42" 0
This way such a problem would be noticed.
gdb/testsuite/ChangeLog:
* gdb.trace/trace-condition.exp: Add counter-case tests.
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Local variables in lambdas are not accessible
https://sourceware.org/bugzilla/show_bug.cgi?id=15231
GDB: read_lexical_block_scope
/* Ignore blocks with missing or invalid low and high pc attributes. */
[...]
if (!dwarf2_get_pc_bounds (die, &lowpc, &highpc, cu, NULL))
return;
But sometimes there is:
FAIL: gcc-5.3.1-6.fc23.x86_64
<2><92>: Abbrev Number: 11 (DW_TAG_lexical_block)
<3><9c>: Abbrev Number: 13 (DW_TAG_structure_type)
<9d> DW_AT_name : (indirect string, offset: 0x3c): <lambda()>
[...]
Where DW_TAG_lexical_block has no attributes. Such whole subtree is currently
dropped by GDB while I think it should just import all its children DIEs.
It even XFAIL->XPASSes gdb.ada/out_of_line_in_inlined.exp:
commit 0fa7fe506c242b459c4c05d331e7c7d66fb52390
Author: Joel Brobecker <brobecker@adacore.com>
out of line functions nested inside inline functions.
So I have removed that xfail.
gdb/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
PR c++/15231
* dwarf2read.c (enum pc_bounds_kind): Add PC_BOUNDS_INVALID.
(process_psymtab_comp_unit_reader, read_func_scope): Adjust callers.
(read_lexical_block_scope): Import DIEs from bare DW_TAG_lexical_block.
(read_call_site_scope): Adjust callers.
(dwarf2_get_pc_bounds): Implement pc_bounds_invalid.
(dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
gdb/testsuite/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
PR c++/15231
* gdb.ada/out_of_line_in_inlined.exp: Remove xfails.
* gdb.dwarf2/dw2-lexical-block-bare.exp: New file.
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Make the code (maybe) more readable + primarily prepare it for [patch 2/2]
enum extension.
This change should have no code change impact.
gdb/ChangeLog
2016-05-30 Jan Kratochvil <jan.kratochvil@redhat.com>
Code cleanup: dwarf2_get_pc_bounds: -1/0/+1 -> enum
* dwarf2read.c (enum pc_bounds_kind) New.
(dwarf2_get_pc_bounds): Use it in the declaration.
(process_psymtab_comp_unit_reader): Adjust caller. Rename has_pc_info
to cu_bounds_kind.
(read_func_scope, read_lexical_block_scope, read_call_site_scope):
Adjust callers.
(dwarf2_get_pc_bounds): Use enum pc_bounds_kind in the definition.
(dwarf2_get_subprogram_pc_bounds, get_scope_pc_bounds): Adjust callers.
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Standardize the QCatchSyscalls NEWS entry.
gdb/ChangeLog
2016-05-29 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (QCatchSyscalls): Remove the parameter. Include ...
(QCatchSyscalls:1 in qSupported) ... this separate entry which got
deleted.
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