* infrun.c (resume): In non-stop mode, always resume just one
thread.
(proceed): Don't call prepare_to_proceed in non-stop mode.
(fetch_inferior_event): In non-stop mode, switch context before
handling the event.
(error_is_running, ensure_not_running): New.
(handle_inferior_event): In non-stop mode: Mark only the event
thread as stopped. Require that the target module manages adding
threads to the thread list. Assert that there isn't a
deferred_step_ptid set. Don't switch to infwait_thread_hop_state.
(normal_stop): Only mark not-running if inferior hasn't exited.
In non-stop mode, only mark the event thread.
* thread.c:Include "cli/cli-decode.h".
(print_thread_info): Don't read from a running thread.
Output "(running)" if thread is running.
(switch_to_thread): Don't read stop_pc if thread is executing.
(do_restore_current_thread_cleanup): Don't write to a running
thread.
(thread_apply_all_command): Don't read from a running thread. In
non-stop mode, do a full context-switch instead of just switching
threads.
(thread_apply_command): In non-stop mode, do a full context-switch
instead of just switching threads.
(do_captured_thread_select): Likewise. Inform user if selected
thread is running.
(_initialize_thread): Mark "info threads" and "thread" and
async_ok.
* inf-loop.c (inferior_event_handler): In non-stop mode, don't
unregister the target from the event loop.
* infcmd.c (continue_command, step_1, jump_command)
(signal_command): Ensure the selected thread isn't running.
(interrupt_target_command): In non-stop mode, interrupt only the
selected thread.
* inferior.h (error_is_running, ensure_not_running): Declare.
* target.h (struct target_ops): Add ptid argument to the to_stop
member.
(target_stop): Add ptid_t argument.
* target.c (update_current_target): Add ptid argument to to_stop's
type.
(debug_to_stop): Add ptid_t argument.
(debug_to_rcmd): Set to_stop_ptid.
* remote.c (remote_stop): Add ptid_t argument.
(async_remote_interrupt): Add inferior_ptid to target_stop.
* inf-ptrace.c (inf_ptrace_stop): Add ptid argument.
* Makefile.in (thread.o): Depend on $(cli_decode_h).
* inferior.h (target_executing): Delete.
* gdbthread.h (struct thread_info): Add executing_ field.
(set_executing, is_executing): New.
* thread.c (main_thread_executing): New.
(init_thread_list): Clear it and also main_thread_running.
(is_running): Return false if target has no execution.
(any_running, is_executing, set_executing): New.
* top.c: Include "gdbthread.h".
(target_executing): Delete.
(execute_command): Replace target_executing check by any_running.
* event-top.c: Include "gdbthread.h".
(display_gdb_prompt, command_handler): Replace target_executing by
is_running.
* inf-loop.c: Include "gdbthread.h". Don't mark as not executing
here. Replace target_executing by is_running.
* infrun.c (handle_inferior_event): Mark all threads as
not-executing.
* linux-nat.c (linux_nat_resume): Don't mark thread as executing
here.
* stack.c (get_selected_block): Return null if inferior is
executing.
* target.c (target_resume): Mark resumed ptid as executing.
* breakpoint.c (until_break_command): Replace target_executing
check by is_executing.
* remote.c (remote_async_resume): Don't mark inferior as executing
here.
* mi/mi-interp.c (mi_cmd_interpreter_exec): Replace target_executing
by any_running.
* mi/mi-main.c (mi_cmd_exec_interrupt, mi_cmd_execute)
(mi_execute_async_cli_command): Replace target_executing by
is_running.
* frame.c (get_current_frame): Error out if the current thread is
executing.
(has_stack_frames): New.
(get_selected_frame, deprecated_safe_get_selected_frame): Check
has_stack_frames.
* Makefile.in (event-top.o, frame.o, inf-loop.o, top.o): Depend on
$(gdbthread_h).
(gdb_stdint_h, gdb_stdint.h, stamp-int): Delete. Remove
all dependencies on $(gdb_stdint_h).
(distclean): Do not delete gdb_stdint.h.
* acinclude.m4: Do not use stdint.m4.
* configure.ac: Set GNULIB_STDINT_H. Remove tests for stdint.h,
uintptr_t, and gdb_stdint.h.
* defs.h: Include <stdint.h>.
* gdb_thread_db.h: Assume stdint.h is already included.
* breakpoint.c, findcmd.c, hppa-tdep.c, inf-ptrace.c, proc-service.c,
rs6000-nat.c, spu-linux-nat.c, target.c, win32-nat.c: Do not
include gdb_stdint.h.
* configure, config.in: Regenerate.
to_watchpoint_addr_within_range.
(target_watchpoint_addr_within_range): New function.
* target.c (update_current_target): Inherit
to_watchpoint_addr_within_range, defaulting to
default_watchpoint_addr_within_range.
(default_watchpoint_addr_within_range): New function.
(debug_to_watchpoint_addr_within_range): New function.
(setup_target_debug): Set to_watchpoint_addr_within_range.
* ppc-linux-nat.c (ppc_linux_watchpoint_addr_within_range):
New function.
(_initialize_ppc_linux_nat): Set to_watchpoint_addr_within_range.
* breakpoint.c (watchpoints_triggered): Use
target_watchpoint_addr_within_range.
* gdbint.texinfo (Algorithms): Describe
target_watchpoint_addr_within_range.
parameter. If it is NULL, don't call error.
(find_default_can_async_p, find_default_is_async_p): Pass NULL as
`do_mesg' parameter to find_default_run_target. If no target was
found, return 0.
* target.h (struct target_ops): Delete to_async_mask_value and add
to_async_mask.
(target_is_async_p, target_async): Formatting.
(target_async_mask_value): Delete.
(target_async_mask): Delete function declaration, and add new
target macro with the same name.
* target.c (update_current_target): Replace to_async_mask_value by
to_async_mask. Default to_async_mask to return_one.
(target_async_mask): Delete.
(find_default_can_async_p, find_default_is_async_p): New.
(init_dummy_target): register find_default_can_async_p and
find_default_is_async_p on the dummy target.
* linux-nat.c: Include inf-loop.h, event-loop.h and event-top.h.
(debug_linux_nat_async): New global.
(show_debug_linux_nat_async): New function.
(linux_nat_async_enabled, linux_nat_async_mask_value)
(linux_nat_event_pipe, linux_nat_num_queued_events)
(linux_nat_async_events_enabled): New globals.
(struct waitpid_result): New struct.
(waitpid_queue): New global.
(queued_waitpid, push_waitpid, drain_queued_events): New.
(my_waitpid): Call queued_waitpid.
(linux_child_follow_fork): Disable async events during the call.
(blocked_mask): Delete.
(sync_sigchld_action, async_sigchld_action): New globals.
(lin_lwp_attach_lwp): In sync mode, don't reblock SIGCHLD. In
async mode, block events during the call.
(linux_nat_create_inferior): New.
(linux_nat_attach): In sync mode, restore the mask states. In
async mode, wake the event loop immediatelly.
(detach_callback): Drain all queued events of the lwp we're
detaching from.
(linux_nat_detach): Block async mode, and drain events of the main
process.
(linux_nat_resume): If in async mode, mask async events during the
call. If short circuiting, force event loop to wake up. If
resuming, set target_executing, and register target events in the
event loop.
(pipe_to_local_event_queue, local_event_queue_to_pipe): New.
(linux_nat_wait): In async mode, block events during the call.
Only enable/disable passing SIGINT to the inferior in sync mode.
Get events from local waitpid queue. If no interesting events was
found, return to events loop. Reregister target events in the
event loop on exit. In sync mode, no need to reblock SIGCHLD.
(linux_nat_kill): Disable events on entry.
(linux_nat_mourn_inferior): In sync mode, don't restore the masks
here. Detach async mode from the event loop if there are no more
forks available, otherwise leave it on.
(sigchld_handler): Assure this is called only in sync mode.
(linux_async_permitted, linux_async_permitted_1): New globals.
(set_maintenance_linux_async_permitted)
(show_maintenance_linux_async_permitted): New functions.
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_async_mask): New.
(linux_nat_event_pipe_pop, linux_nat_event_pipe_push): New.
(get_pending_events, async_sigchld_handler): New.
(linux_nat_async_events): New.
(async_terminal_is_ours): New global.
(linux_nat_terminal_inferior, linux_nat_terminal_ours): New.
(async_client_callback, async_client_context): New.
(linux_nat_async_file_handler, linux_nat_async)
(linux_nat_disable_async, linux_nat_enable_async): New.
(linux_nat_add_target): Register linux_nat_create_inferior,
linux_nat_can_async_p, linux_nat_is_async_p, linux_nat_async,
linux_nat_async_mask, linux_nat_terminal_inferior and
linux_nat_terminal_ours.
(_initialize_linux_nat): Remove local action variable, and update
code that used it to use sync_sigchld_action. Add new
"lin-lwp-async" debug set/show command. Put the "lin-lwp" debug
set/show command in the maintenance class. Add new "linux-async"
maintenance set/show command. Block SIGCHLD by default. Setup
async_sichld_action, and sync_sigchld_action. Install the default
async mode.
(lin_thread_get_thread_signals): Use a local sigset_t for blocking
the cancel signals.
* linux-thread-db.c (re_check_for_thread_db): New.
(clear_lwpid_callback): Handle TARGET_WAITKIND_IGNORE.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): New.
(init_thread_db_ops): Register thread_db_can_async_p,
thread_db_is_async_p, thread_db_async and thread_db_async_mask.
* remote.c (remote_async_mask_value): New.
(remote_return_zero): New.
(init_remote_ops): Register remote_return_zero as callbacks of
to_can_async_p and to_is_async_p.
(remote_can_async_p, remote_is_async_p, remote_async): Update to
use remote_async_mask_value.
(remote_async_mask): New.
(init_remote_async_ops): Remove to_async_mask_value setting and
register remote_async_mask as to_async_mask callback in
remote_async_ops.
* Makefile.in (linux-nat.o): Update.
gdb/doc/
* gdb.texinfo (Debugging Output): Document
"set/show debug lin-lwp-async".
(Maintenance Commands): Document "maint set/show linux-async".
* fork-child.c (startup_inferior): Do not set
inferior_ignoring_leading_exec_events.
* inf-child.c (inf_child_reported_exec_events_per_exec_call): Remove.
(inf_child_target): Do not set to_reported_exec_events_per_exec_call.
* infrun.c (inferior_ignoring_leading_exec_events): Remove.
(handle_inferior_event): Remove code for ignoring leading exec
events.
* target.c (update_current_target): Do not inherit, or default,
to_reported_exec_events_per_exec_call.
(debug_to_reported_exec_events_per_exec_call): Remove.
(setup_target_debug): Do not set to_reported_exec_events_per_exec_call.
* target.h (target_reported_exec_events_per_exec_call): Remove.
(struct target): Remove the to_reported_exec_events_per_exec_call
field.
* gdb/target.c (target_flash_erase): Do not return void value.
(target_flash_done): Likewise.
* gdb/cli/cli-cmds.c (source_command): Likewise.
Reported by timeless@gmail.com:
* wrapper.c (sim_target_parse_arg_array): Do not return void value.
* memattr.h (enum mem_access_mode): New value
MEM_NONE.
* memattr.c (unknown_mem_attrib): New.
(inaccessible_by_default): New.
(show_inaccessible_by_default): New.
(lookup_mem_region): Check inaccessible_by_default.
(dummy_cmd): New.
(mem_set_cmdlist, mem_show_cmdlist): New.
(_initialize_mem): Register new "set" and "show"
commands.
* target.c (memory_xfer_partial): If memory type
is MEM_NONE, return an error.
Clip to region size when calling to_xfer_partial.
If upper limit of memory range is 0, don't clip
anything.
gdb/doc/
* gdb.texinfo (Memory Access Checking): New.
* gdbint.texinfo (Target Vector Definition): Move most
content into Existing Targets. Add a menu.
(Existing Targets): New section, moved from Target Vector
Definition. Use @subsection.
(Managing Execution State): New section.
gdb/doc/
* remote-sim.c (gdbsim_kill): Call target_mourn_inferior.
(gdbsim_load): Don't bother to adjust inferior_ptid here.
(gdbsim_create_inferior): Mark the simulator as running.
(gdbsim_open): Don't bother fetching registers. Mark
the target as not running.
(gdbsim_xfer): When the program is not running, pass memory
requests down.
(gdbsim_mourn_inferior): Mark the target as not running.
* target.c (target_mark_running, target_mark_exited): New.
* target.h (target_has_execution): Update the comment.
(target_mark_running, target_mark_exited): New prototypes.
(COMMON_OBS): Add target-memory.o.
* memattr.c (lookup_mem_region): Adjust handling for
the top of memory. Improve comments.
* remote.c (packet_check_result): New function, split out
from packet_ok. Recognize "E." as an error prefix.
(packet_ok): Use it.
(remote_write_bytes_aux): New function, renamed from
remote_write_bytes. Take packet header, packet format,
and length flag as arguments.
(remote_write_bytes): Rewrite to use remote_write_bytes_aux.
(remote_send_printf, restore_remote_timeout)
(remote_flash_timeout, remote_flash_erase, remote_flash_write)
(remote_flash_done): New.
(remote_xfer_partial): Handle flash writes.
(init_remote_ops, init_remote_async_ops): Set to_flash_erase
and to_flash_done.
* symfile.c (struct load_section_data): Include a pointer to
the cumulative stats and a request queue. Move most members
to other types.
(struct load_progress_data, struct load_progress_section_data): New
types.
(load_progress): Handle a NULL baton and zero bytes. Update for
type changes.
(load_section_callback): Create memory write requests instead of
writing to memory. Don't print the progress message here.
(clear_memory_write_data): New function.
(generic_load): Use target_write_memory_blocks.
* target-memory.c: New file.
* target.c (update_current_target): Mention new uninherited methods.
(memory_xfer_partial): Issue an error for flash writes.
(target_flash_erase, target_flash_done): New functions.
(target_write_with_progress): Call the progress callback at the
start also.
* target.h (enum target_object): Add TARGET_OBJECT_FLASH.
(target_write_with_progress): Update comment.
(struct target_ops): Add to_flash_erase and to_flash_done.
(target_flash_erase, target_flash_done, struct memory_write_request)
(memory_write_request_s, enum flash_preserve_mode)
(target_write_memory_blocks): New, including a vector type
for memory_write_request_s.
* dcache.c (dcache_write_line): Use target_write.
(dcache_read_line): Use target_read.
* mi/mi-main.c (mi_cmd_data_read_memory): Use target_read.
* symfile.c (struct load_section_data): Add new per-section
members.
(load_progress): New function.
(load_section_callback): Pass load_progress to the new
target_write_with_progress.
* target.c (current_xfer_partial, memory_xfer_partial): New.
(target_xfer_partial): New prototype.
(target_xfer_memory, target_xfer_partial_p, xfer_using_stratum)
(do_xfer_memory, target_xfer_memory_partial)
(target_read_memory_partial, target_write_memory_partial): Delete.
(trust_readonly): Move higher in the file.
(update_current_target): Use current_xer_partial.
(target_xfer_partial): Use memory_xfer_partial. Handle
TARGET_OBJECT_RAW_MEMORY specially.
(target_read_memory): Use target_read.
(target_write_memory): Use target_write.
(default_xfer_partial): Call to_xfer_partial directly.
(target_write_with_progress): New function, based on target_write.
(target_write): Call it.
* target.h (enum target_object): Add TARGET_OBJECT_RAW_MEMORY.
(target_write_with_progress): New prototype.
(do_xfer_memory, target_read_memory_partial)
(target_write_memory_partial): Delete prototypes.
* target.c (target_read_alloc_1): Renamed from target_read_alloc.
Take new PADDING argument.
(target_read_alloc): Use it.
(target_read_stralloc): New function.
