Commit Graph

143 Commits

Author SHA1 Message Date
Pierre Muller 711e434b39 Support for Windows OS Thread Information Block.
* NEWS: Document new feature.
	* remote.c (PACKET_qGetTIBAddr): New enum element.
	(remote_get_tib_address): New function.
	(init_remote_ops): Set to_get_tib_address field
	to remote_get_tib_address.
	(_initialize_remote): Add add_packet_config_cmd
	for PACKET_qGetTIBAddr.
	* target.c (update_current_target): Set default value for
	new to_get_tib_address field.
	* target.h (target_ops): New field to_get_tib_address.
	(target_get_tib_address): New macro.
	* windows-nat.c (thread_info): Add thread_local_base field.
	(windows_add_thread): Add tlb argument of type 'void *'.
	(fake_create_process): Adapt windows_add_thread call.
	(get_windows_debug_event): Idem.
	(windows_get_tib_address): New function.
	(init_windows_ops): Set to_get_tib_address field
	to remote_get_tib_address.
	(_initialize_windows_nat): Replace info_w32_cmdlist
	initialization by a call to init_w32_command_list.
	(info_w32_command, info_w32_cmdlist): Removed from here...
	to windows-tdep.c file.
	* windows-tdep.h (info_w32_cmdlist): Declare.
	(init_w32_command_list): New external function
	declaration.
	* windows-tdep.c: Add several headers.
	(info_w32_cmdlist): to here, made global.
	(thread_information_32): New struct.
	(thread_information_64): New struct.
	(TIB_NAME): New char array.
	(MAX_TIB32, MAX_TIB64, FULL_TIB_SIZE): New constants.
	(maint_display_all_tib): New static variable.
	(windows_get_tlb_type): New function.
	(tlb_value_read, tlb_value_write): New functions.
	(tlb_value_funcs): New static struct.
	(tlb_make_value): New function.
	(display_one_tib): New function.
	(display_tib): New function.
	(show_maint_show_all_tib):New function.
	(info_w32_command): Moved from windows-nat.c.
	(init_w32_command_list): New function.
	(_initialize_windows_tdep): New function.
	New "maint set/show show-all-tib" command
	New "$_tlb" internal variable.

gdbserver/ChangeLog entry:

	* server.c (handle_query): Handle 'qGetTIBAddr' query.
	* target.h (target_ops): New get_tib_address field.
	* win32-low.h (win32_thread_info): Add thread_local_base field.
	* win32-low.c (child_add_thread): Add tlb argument.
	Set thread_local_base field to TLB.
	(get_child_debug_event): Adapt to child_add_thread change.
	(win32_get_tib_address): New function.
	(win32_target_ops): Set get_tib_address field to
	win32_get_tib_address.
	* linux-low.c (linux_target_ops): Set get_tib_address field to NULL.

doc/ChangeLog entry:

	gdb.texinfo ($_tlb): Document new automatic convinience variable.
	(info w32 thread-information-block): Document new command.
	(qGetTIBAddress): Document new gdbserver query.
	(maint set/show show-all-tib): Document new command.
2010-04-16 07:49:37 +00:00
Pedro Alves 505106cdc7 gdb/gdbserver/
* linux-low.c (linux_mourn): Also remove the process.
	* server.c (handle_target_event): Don't remove the process here.
	* nto-low.c (nto_mourn): New.
	(nto_target_ops): Install it.
	* spu-low.c (spu_mourn): New.
	(spu_target_ops): Install it.
	* win32-low.c (win32_mourn): New.
	(win32_target_ops): Install it.
2010-04-12 17:39:42 +00:00
Pedro Alves 8336d594d5 GDBserver disconnected tracing support.
* linux-low.c (linux_remove_process): Delete.
	(add_lwp): Don't set last_resume_kind here.
	(linux_kill): Use `mourn'.
	(linux_detach): Use `thread_db_detach', and `mourn'.
	(linux_mourn): New.
	(linux_attach_lwp_1): Adjust comment.
	(linux_attach): last_resume_kind moved the thread_info; adjust.
	(status_pending_p_callback): Adjust.
	(linux_wait_for_event_1): Adjust.
	(count_events_callback, select_singlestep_lwp_callback)
	(select_event_lwp_callback, cancel_breakpoints_callback)
	(db_wants_lwp_stopped, linux_wait_1, need_step_over_p)
	(proceed_one_lwp): Adjust.
	(linux_async): Add debug output.
	(linux_thread_stopped): New.
	(linux_pause_all): New.
	(linux_target_ops): Install linux_mourn, linux_thread_stopped and
	linux_pause_all.
	* linux-low.h (struct lwp_info): Delete last_resume_kind field.
	(thread_db_free): Delete declaration.
	(thread_db_detach, thread_db_mourn): Declare.
	* thread-db.c (thread_db_init): Use thread_db_mourn.
	(thread_db_free): Delete, split in two.
	(disable_thread_event_reporting): New.
	(thread_db_detach): New.
	(thread_db_mourn): New.

	* server.h (struct thread_info) <last_resume_kind>: New field.
	<attached>: Add comment.
	<gdb_detached>: New field.
	(handler_func): Change return type to int.
	(handle_serial_event, handle_target_event): Ditto.
	(gdb_connected): Declare.
	(tracing): Delete.
	(disconnected_tracing): Declare.
	(stop_tracing): Declare.

	* server.c (handle_query) <qSupported>: Report support for
	disconnected tracing.
	(queue_stop_reply_callback): Account for running threads.
	(gdb_wants_thread_stopped): New.
	(gdb_wants_all_threads_stopped): New.
	(gdb_reattached_process): New.
	(handle_status): Clear the `gdb_detached' flag of all processes.
	In all-stop, stop all threads.
	(main): Be sure to leave tfind mode.  Handle disconnected tracing.
	(process_serial_event): If the remote connection breaks, or if an
	exit was forced with "monitor exit", force an event loop exit.
	Handle disconnected tracing on detach.
	(handle_serial_event): Adjust.
	(handle_target_event): If GDB isn't connected, forward events back
	to the inferior, unless the last process exited, in which case,
	exit gdbserver.  Adjust interface.

	* remote-utils.c (remote_open): Don't block in accept.  Instead
	register an event loop source on the listen socket file
	descriptor.  Refactor bits into ...
	(listen_desc): ... this new global.
	(gdb_connected): ... this new function.
	(enable_async_notification): ... this new function.
	(handle_accept_event): ... this new function.
	(remote_close): Clear remote_desc.

	* inferiors.c (add_thread): Set the new thread's last_resume_kind.

	* target.h (struct target_ops) <mourn, thread_stopped, pause_all>:
	New fields.
	(mourn_inferior): Define.
	(target_process_qsupported): Avoid the dangling else problem.
	(thread_stopped): Define.
	(pause_all): Define.
	(target_waitstatus_to_string): Declare.
	* target.c (target_waitstatus_to_string): New.

	* tracepoint.c (tracing): Make extern.
	(disconnected_tracing): New.
	(stop_tracing): Make extern.  Handle tracing stops due to GDB
	disconnecting.
	(cmd_qtdisconnected): New.
	(cmd_qtstatus): Report disconnected tracing status in trace reply.
	(handle_tracepoint_general_set): Handle QTDisconnected.

	* event-loop.c (event_handler_func): Change return type to int.
	(process_event): Bail out if the event handler wants the event
	loop to stop.
	(handle_file_event): Ditto.
	(start_event_loop): Bail out if the event handler wants the event
	loop to stop.

	* nto-low.c (nto_target_ops): Adjust.
	* spu-low.c (spu_wait): Don't remove the process here.
	(spu_target_ops): Adjust.
	* win32-low.c (win32_wait): Don't remove the process here.
	(win32_target_ops): Adjust.
2010-04-11 16:33:56 +00:00
Pedro Alves 219f2f2398 gdb/gdbserver/
* server.h (LONGEST): New.
	(struct thread_info) <while_stepping>: New field.
	(unpack_varlen_hex, xrealloc, pulongest, plongest, phex_nz):
	Declare.
	(initialize_tracepoint, handle_tracepoint_general_set)
	(handle_tracepoint_query, tracepoint_finished_step)
	(tracepoint_was_hit, release_while_stepping_state_list):
	(current_traceframe): Declare.
	* server.c (handle_general_set): Handle tracepoint packets.
	(read_memory): New.
	(write_memory): New.
	(handle_search_memory_1): Use read_memory.
	(handle_query): Report support for conditional tracepoints, trace
	state variables, and tracepoint sources.  Handle tracepoint
	queries.
	(main): Initialize the tracepoints module.
	(process_serial_event): Handle traceframe reads/writes.

	* linux-low.c (handle_tracepoints): New.
	(linux_wait_1): Call it.
	(linux_resume_one_lwp): Handle while-stepping.
	(linux_supports_tracepoints, linux_read_pc, linux_write_pc): New.
	(linux_target_ops): Install them.
	* linux-low.h (struct linux_target_ops) <supports_tracepoints>:
	New field.
	* linux-x86-low.c (x86_supports_tracepoints): New.
	(the_low_target). Install it.

	* mem-break.h (delete_breakpoint): Declare.
	* mem-break.c (delete_breakpoint): Make external.

	* target.h (struct target_ops): Add `supports_tracepoints',
	`read_pc', and `write_pc' fields.
	(target_supports_tracepoints): Define.
	* utils.c (xrealloc, decimal2str, pulongest, plongest, thirty_two)
	(phex_nz): New.

	* regcache.h (struct regcache) <registers_owned>: New field.
	(init_register_cache, regcache_cpy): Declare.
	(regcache_read_pc, regcache_write_pc): Declare.
	(register_cache_size): Declare.
	(supply_regblock): Declare.
	* regcache.c (init_register_cache): New.
	(new_register_cache): Use it.
	(regcache_cpy): New.
	(register_cache_size): New.
	(supply_regblock): New.
	(regcache_read_pc, regcache_write_pc): New.

	* tracepoint.c: New.

	* Makefile.in (OBS): Add tracepoint.o.
	(tracepoint.o): New rule.

	gdb/
	* regformats/regdat.sh: Include server.h.  Don't include
	regcache.h.
2010-04-09 03:40:00 +00:00
H.J. Lu 1570b33e44 Add x86 AVX support to gdbserver.
2010-04-07  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (clean): Updated.
	(i386-avx.o): New.
	(i386-avx.c): Likewise.
	(i386-avx-linux.o): Likewise.
	(i386-avx-linux.c): Likewise.
	(amd64-avx.o): Likewise.
	(amd64-avx.c): Likewise.
	(amd64-avx-linux.o): Likewise.
	(amd64-avx-linux.c): Likewise.

	* configure.srv (srv_i386_regobj): Add i386-avx.o.
	(srv_i386_linux_regobj): Add i386-avx-linux.o.
	(srv_amd64_regobj): Add amd64-avx.o.
	(srv_amd64_linux_regobj): Add amd64-avx-linux.o.
	(srv_i386_32bit_xmlfiles): Add i386/32bit-avx.xml.
	(srv_i386_64bit_xmlfiles): Add i386/64bit-avx.xml.
	(srv_i386_xmlfiles): Add i386/i386-avx.xml.
	(srv_amd64_xmlfiles): Add i386/amd64-avx.xml.
	(srv_i386_linux_xmlfiles): Add i386/i386-avx-linux.xml.
	(srv_amd64_linux_xmlfiles): Add i386/amd64-avx-linux.xml.

	* i387-fp.c: Include "i386-xstate.h".
	(i387_xsave): New.
	(i387_cache_to_xsave): Likewise.
	(i387_xsave_to_cache): Likewise.
	(x86_xcr0): Likewise.

	* i387-fp.h (i387_cache_to_xsave): Likewise.
	(i387_xsave_to_cache): Likewise.
	(x86_xcr0): Likewise.

	* linux-arm-low.c (target_regsets): Initialize nt_type to 0.
	* linux-crisv32-low.c (target_regsets): Likewise.
	* linux-m68k-low.c (target_regsets): Likewise.
	* linux-mips-low.c (target_regsets): Likewise.
	* linux-ppc-low.c (target_regsets): Likewise.
	* linux-s390-low.c (target_regsets): Likewise.
	* linux-sh-low.c (target_regsets): Likewise.
	* linux-sparc-low.c (target_regsets): Likewise.
	* linux-xtensa-low.c (target_regsets): Likewise.

	* linux-low.c: Include <sys/uio.h>.
	(regsets_fetch_inferior_registers): Support nt_type.
	(regsets_store_inferior_registers): Likewise.
	(linux_process_qsupported): New.
	(linux_target_ops): Add linux_process_qsupported.

	* linux-low.h (regset_info): Add nt_type.
	(linux_target_ops): Add process_qsupported.

	* linux-x86-low.c: Include "i386-xstate.h", "elf/common.h"
	and <sys/uio.h>.
	(init_registers_i386_avx_linux): New.
	(init_registers_amd64_avx_linux): Likewise.
	(xmltarget_i386_linux_no_xml): Likewise.
	(xmltarget_amd64_linux_no_xml): Likewise.
	(PTRACE_GETREGSET): Likewise.
	(PTRACE_SETREGSET): Likewise.
	(x86_fill_xstateregset): Likewise.
	(x86_store_xstateregset): Likewise.
	(use_xml): Likewise.
	(x86_linux_update_xmltarget): Likewise.
	(x86_linux_process_qsupported): Likewise.
	(target_regsets): Add NT_X86_XSTATE entry and Initialize nt_type.
	(x86_arch_setup): Don't call init_registers_amd64_linux nor
	init_registers_i386_linux here.  Call
	x86_linux_update_xmltarget.
	(the_low_target): Add x86_linux_process_qsupported.

	* server.c (handle_query): Call target_process_qsupported.

	* target.h (target_ops): Add process_qsupported.
	(target_process_qsupported): New.
2010-04-07 18:49:46 +00:00
Pedro Alves fc7238bbba * inferiors.c (add_thread): Set last_status kind to
TARGET_WAITKIND_IGNORE.
	* linux-low.c (cancel_breakpoint): Remove unnecessary regcache
	fetch.  Use ptid_of.  Avoid unnecessary get_lwp_thread calls.
	(linux_wait_1): Move `thread' local definition to block that uses
	it.  Don't NULL initialize `event_child'.
	(linux_resume_one_thread): Avoid unnecessary get_lwp_thread calls.
	Alway set the thread's last_status to TARGET_WAITKIND_IGNORE.
	* linux-x86-low.c (x86_breakpoint_at): Read raw memory.
2010-04-03 23:14:18 +00:00
Pedro Alves bdabb07895 * linux-low.c (get_stop_pc): Don't adjust the PC if stopped with
an extended waitstatus, or by a watchpoint.
	(cancel_breakpoints_callback): Don't cancel a breakpoint if the
	thread was stepping or has been stopped by a watchpoint.
2010-04-01 15:31:26 +00:00
Pedro Alves 8b07ae33f0 * linux-low.c (linux_wait_1): Avoid setting need_step_over is
there's a GDB breakpoint at stop_pc.  Always report a trap to GDB
	if we could tell there's a GDB breakpoint at stop_pc.
	(need_step_over_p): Don't do a step over if we find a GDB
	breakpoint at the resume PC.

	* mem-break.c (struct raw_breakpoint): New.
	(enum bkpt_type): New type `gdb_breakpoint'.
	(struct breakpoint): Delete the `PC', `old_data' and `inserted'
	fields.  New field `raw'.
	(find_raw_breakpoint_at): New.
	(set_raw_breakpoint_at): Handle refcounting.  Create a raw
	breakpoint instead.
	(set_breakpoint_at): Adjust.
	(delete_raw_breakpoint): New.
	(release_breakpoint): New.
	(delete_breakpoint): Rename to...
	(delete_breakpoint_1): ... this.  Add proc parameter.  Use
	release_breakpoint.  Return ENOENT.
	(delete_breakpoint): Reimplement.
	(find_breakpoint_at): Delete.
	(find_gdb_breakpoint_at): New.
	(delete_breakpoint_at): Delete.
	(set_gdb_breakpoint_at): New.
	(delete_gdb_breakpoint_at): New.
	(gdb_breakpoint_here): New.
	(set_reinsert_breakpoint): Use release_breakpoint.
	(uninsert_breakpoint): Rename to ...
	(uninsert_raw_breakpoint): ... this.
	(uninsert_breakpoints_at): Adjust to handle raw breakpoints.
	(reinsert_raw_breakpoint): Change parameter type to
	raw_breakpoint.
	(reinsert_breakpoints_at): Adjust to handle raw breakpoints
	instead.
	(check_breakpoints): Adjust.  Use release_breakpoint.
	(breakpoint_here): Rewrite using find_raw_breakpoint_at.
	(breakpoint_inserted_here): Ditto.
	(check_mem_read): Adjust to iterate over raw breakpoints instead.
	Don't trust the breakpoint's shadow if it is not inserted.
	(check_mem_write): Adjust to iterate over raw breakpoints instead.
	(delete_all_breakpoints): Adjust.
	(free_all_breakpoints): Mark all breakpoints as uninserted, and
	use delete_breakpoint_1.

	* mem-break.h (breakpoints_supported): Delete declaration.
	(set_gdb_breakpoint_at): Declare.
	(gdb_breakpoint_here): Declare.
	(delete_breakpoint_at): Delete.
	(delete_gdb_breakpoint_at): Declare.

	* server.h (struct raw_breakpoint): Forward declare.
	(struct process_info): New field `raw_breakpoints'.

	* linux-x86-low.c (x86_insert_point, x86_remote_point): Handle Z0
	breakpoints.
2010-04-01 14:25:34 +00:00
Pedro Alves 6bf5e0ba81 * linux-low.c (status_pending_p_callback): Fix comment.
(linux_wait_for_event_1): Move most of the internal breakpoint
	handling from here...
	(linux_wait_1): ... to here.
	(count_events_callback): New.
	(select_singlestep_lwp_callback): New.
	(select_event_lwp_callback): New.
	(cancel_breakpoints_callback): New.
	(select_event_lwp): New.
	(linux_wait_1): Simplify internal breakpoint handling.  Give equal
	priority to all LWPs that have had events that should be reported
	to the client.  Cancel breakpoints when about to reporting the
	event to the client, not while stopping lwps.  No longer cancel
	finished single-steps here.
	(cancel_finished_single_step): Delete.
	(cancel_finished_single_steps): Delete.
2010-03-24 21:12:45 +00:00
Pedro Alves d50171e439 Teach linux gdbserver to step-over-breakpoints.
* linux-low.c (can_hardware_single_step): New.
	(supports_breakpoints): New.
	(handle_extended_wait): If stopping threads, read the stop pc of
	the new cloned LWP.
	(get_pc): New.
	(get_stop_pc): Add `lwp' parameter.  Handle it.  Bail out if the
	low target doesn't support retrieving the PC.
	(add_lwp): Set last_resume_kind to resume_continue.
	(linux_attach_lwp_1): Adjust comments.  Always set stop_expected.
	(linux_attach): Don't clear stop_expected.  Set the lwp's
	last_resume_kind to resume_stop.
	(linux_detach_one_lwp): Don't check for removed breakpoints.
	(check_removed_breakpoint): Delete.
	(status_pending_p): Rename to ...
	(status_pending_p_callback): ... this.  Don't check for removed
	breakpoints.  Don't consider threads that are stopped from GDB's
	perspective.
	(linux_wait_for_lwp): Always read the stop_pc here.
	(cancel_breakpoint): New.
	(step_over_bkpt): New global.
	(linux_wait_for_event_1): Implement stepping over breakpoints.
	(gdb_wants_lwp_stopped): New.
	(gdb_wants_all_stopped): New.
	(linux_wait_1): Tag threads as gdb-wants-stopped.  Cancel finished
	single-step traps here.  Store the thread's last reported target
	wait status.
	(send_sigstop): Don't clear stop_expected.  Always set it,
	instead.
	(mark_lwp_dead): Remove reference to pending_is_breakpoint.
	(cancel_finished_single_step): New.
	(cancel_finished_single_steps): New.
	(wait_for_sigstop): Don't cancel finished single-step traps here.
	(linux_resume_one_lwp): Don't check for removed breakpoints.
	Don't set `step' on non-hardware step archs.
	(linux_set_resume_request): Ignore resume_stop requests if already
	stopping or stopped.  Set the lwp's last_resume_kind.
	(resume_status_pending_p): Don't check for removed breakpoints.
	(need_step_over_p): New.
	(start_step_over): New.
	(finish_step_over): New.
	(linux_resume_one_thread): Always queue a sigstop for resume_stop
	requests.  Clear the thread's last reported target waitstatus.
	Don't use the `suspended' flag.  Don't consider pending breakpoints.
	(linux_resume): Start a step-over if necessary.
	(proceed_one_lwp): New.
	(proceed_all_lwps): New.
	(unstop_all_lwps): New.
	* linux-low.h (struct lwp_info): Rewrite comment for the
	`suspended' flag.  Add the `stop_pc' field.  Delete the
	`pending_stop_pc' field.  Tweak the `stepping' flag's comment.
	Add `'last_resume_kind' and `need_step_over' fields.
	* inferiors.c (struct thread_info): Delete, moved elsewhere.
	* mem-break.c (struct breakpoint): Delete `reinserting' flag.
	Delete `breakpoint_to_reinsert' field.  New flag `inserted'.
	(set_raw_breakpoint_at): New.
	(set_breakpoint_at): Rewrite to use it.
	(reinsert_breakpoint_handler): Delete.
	(set_reinsert_breakpoint): New.
	(reinsert_breakpoint_by_bp): Delete.
	(delete_reinsert_breakpoints): New.
	(uninsert_breakpoint): Rewrite.
	(uninsert_breakpoints_at): New.
	(reinsert_breakpoint): Rewrite.
	(reinsert_breakpoints_at): New.
	(check_breakpoints): Rewrite.
	(breakpoint_here): New.
	(breakpoint_inserted_here): New.
	(check_mem_read): Adjust.
	* mem-break.h (breakpoints_supported, breakpoint_here)
	(breakpoint_inserted_here, set_reinsert_breakpoint): Declare.
	(reinsert_breakpoint_by_bp): Delete declaration.
	(delete_reinsert_breakpoints): Declare.
	(reinsert_breakpoint): Delete declaration.
	(reinsert_breakpoints_at): Declare.
	(uninsert_breakpoint): Delete declaration.
	(uninsert_breakpoints_at): Declare.
	(check_breakpoints): Adjust prototype.
	* server.h: Adjust include order.
	(struct thread_info): Declare here.  Add a `last_status' field.
2010-03-24 00:05:03 +00:00
Pedro Alves f52cd8cdd8 * linux-low.c (fetch_register): Avoid passing a non string literal
format to `error'.
	(usr_store_inferior_registers): Ditto.
2010-03-15 00:31:16 +00:00
Pedro Alves 93ae6fdc31 * linux-low.c (linux_write_memory): Bail out early if peeking
memory failed.
2010-03-14 19:34:47 +00:00
Pedro Alves c3adc08c6f * linux-low.h (struct lwp_info): New fields
`stopped_by_watchpoint' and `stopped_data_address'.
	* linux-low.c (linux_wait_for_lwp): Check for watchpoint triggers
	here, and cache them in the lwp object.
	(wait_for_sigstop): Check stopped_by_watchpoint lwp field
	directly.
	(linux_resume_one_lwp): Clear the lwp's stopped_by_watchpoint
	field.
	(linux_stopped_by_watchpoint): Rewrite.
	(linux_stopped_data_address): Rewrite.
2010-03-14 18:46:40 +00:00
Pedro Alves bce522a260 2010-03-06 Simo Melenius <simo.melenius@iki.fi>
* linux-low.c (linux_wait_for_lwp): Fetch the regcache after
	switching the current inferior, not before.
2010-03-06 00:11:42 +00:00
Doug Evans 6076632b70 * linux-low.c (linux_supports_tracefork_flag): Document.
(linux_look_up_symbols): Add comment.
2010-02-13 01:13:54 +00:00
Jan Kratochvil e4b7f41c57 gdb/
PR libc/11214:
	* linux-low.c (linux_tracefork_child) [!(__UCLIBC__ && HAS_NOMMU)]: New.
	(linux_test_for_tracefork): Move `stack' into [__UCLIBC__ && HAS_NOMMU].
	(linux_test_for_tracefork) [!(__UCLIBC__ && HAS_NOMMU)]: New.

gdb/testsuite/
	PR libc/11214:
	* gdb.threads/current-lwp-dead.c: Include features.h.
	(HAS_NOMMU): New.
	(fn, main): Move CLONE_VM into [__UCLIBC__ && HAS_NOMMU].
2010-02-01 20:19:06 +00:00
Daniel Jacobowitz 2b00904856 * infrun.c (prepare_to_proceed): Handle other signals which might
match a breakpoint.
	(handle_inferior_event): Move the check for unusual breakpoint
	signals earlier.

	gdbserver/
	* linux-low.c (get_stop_pc): Check for SIGTRAP.
	(linux_wait_for_event_1): Handle SIGILL and SIGSEGV as possible
	breakpoints.
2010-01-29 15:40:22 +00:00
Doug Evans 14ce306570 * linux-low.c (PTRACE_ARG3_TYPE): Change from long to void*.
(PTRACE_ARG4_TYPE): New macro.
	(handle_extended_wait): Cast ptrace arg4 to PTRACE_ARG4_TYPE.
	(linux_wait_for_event_1, linux_resume_one_lwp): Ditto.
	(fetch_register): Cast to uintptr_t before casting to PTRACE_ARG3_TYPE.
	(usr_store_inferior_registers): Ditto.
	(linux_read_memory, linux_write_memory): Ditto.
	(linux_test_for_tracefork): Ditto.
2010-01-21 18:35:42 +00:00
Pedro Alves 442ea88105 * regcache.h (struct thread_info): Forward declare.
(struct regcache): New.
	(new_register_cache): Adjust prototype.
	(get_thread_regcache): Declare.
	(free_register_cache): Adjust prototype.
	(registers_to_string, registers_from_string): Ditto.
	(supply_register, supply_register_by_name, collect_register)
	(collect_register_as_string, collect_register_by_name): Ditto.
	* regcache.c (struct inferior_regcache_data): Delete.
	(get_regcache): Rename to ...
	(get_thread_regcache): ... this.  Adjust.  Switch inferior before
	fetching registers.
	(regcache_invalidate_one): Adjust.
	(regcache_invalidate): Fix prototype.
	(new_register_cache): Return the new register cache.
	(free_register_cache): Change prototype.
	(realloc_register_cache): Adjust.
	(registers_to_string): Change prototype to take a regcache.  Adjust.
	(registers_from_string): Ditto.
	(register_data): Ditto.
	(supply_register): Ditto.
	(supply_register_by_name): Ditto.
	(collect_register): Ditto.
	(collect_register_as_string): Ditto.
	(collect_register_by_name): Ditto.
	* server.c (process_serial_event): Adjust.
	* linux-low.h (regset_fill_func, regset_store_func): Change
	prototype.
	(get_pc, set_pc, collect_ptrace_register, supply_ptrace_register):
	Change prototype.
	* linux-low.c (get_stop_pc): Adjust.
	(check_removed_breakpoint): Adjust.
	(linux_wait_for_event): Adjust.
	(linux_resume_one_lwp): Adjust.
	(fetch_register): Add regcache parameter.  Adjust.
	(usr_store_inferior_registers): Ditto.
	(regsets_fetch_inferior_registers): Ditto.
	(regsets_store_inferior_registers): Ditto.
	(linux_fetch_registers, linux_store_registers): Ditto.
	* i387-fp.c (i387_cache_to_fsave): Change prototype to take a
	regcache.  Adjust.
	(i387_fsave_to_cache, i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto.
	* i387-fp.h (i387_cache_to_fsave, i387_fsave_to_cache): Change
	prototype to take a regcache.
	(i387_cache_to_fxsave, i387_fxsave_to_cache): Ditto.
	* remote-utils.c (convert_ascii_to_int, outreg)
	(prepare_resume_reply): Change prototype to take a regcache.
	Adjust.
	* target.h (struct target_ops) <fetch_registers, store_registers>:
	Change prototype to take a regcache.
	(fetch_inferior_registers, store_inferior_registers): Change
	prototype to take a regcache.  Adjust.
	* proc-service.c (ps_lgetregs): Adjust.
	* linux-x86-low.c (x86_fill_gregset, x86_store_gregset)
	(x86_fill_fpregset, x86_store_fpregset, x86_fill_fpxregset)
	(x86_store_fpxregset, x86_get_pc, x86_set_pc): Change prototype to
	take a regcache.  Adjust.
	* linux-arm-low.c (arm_fill_gregset, arm_store_gregset)
	(arm_fill_wmmxregset, arm_store_wmmxregset, arm_fill_vfpregset)
	(arm_store_vfpregset, arm_get_pc, arm_set_pc):
	(arm_breakpoint_at): Change prototype to take a regcache.  Adjust.
	* linux-cris-low.c (cris_get_pc, cris_set_pc)
	(cris_cannot_fetch_register):
	(cris_breakpoint_at): Change prototype to take a regcache.
	Adjust.
	* linux-crisv32-low.c (cris_get_pc, cris_set_pc,
	cris_reinsert_addr, cris_write_data_breakpoint): Change prototype
	to take a regcache.  Adjust.
	(cris_breakpoint_at, cris_insert_point, cris_remove_point):
	Adjust.
	* linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Change prototype to
	take a regcache.  Adjust.
	* linux-m68k-low.c (m68k_fill_gregset, m68k_store_gregset)
	(m68k_fill_fpregset, m68k_store_fpregset, m68k_get_pc,
	(m68k_set_pc): Change prototype to take a regcache.  Adjust.
	* linux-mips-low.c (mips_get_pc):
	(mips_set_pc): Change prototype to take a regcache.  Adjust.
	(mips_reinsert_addr): Adjust.
	(mips_collect_register): Change prototype to take a regcache.
	Adjust.
	(mips_supply_register):
	(mips_collect_register_32bit, mips_supply_register_32bit)
	(mips_fill_gregset, mips_store_gregset, mips_fill_fpregset)
	(mips_store_fpregset): Ditto.
	* linux-ppc-low.c (ppc_supply_ptrace_register, ppc_supply_ptrace_register):
	Ditto.
	(parse_spufs_run): Adjust.
	(ppc_get_pc, ppc_set_pc, ppc_fill_gregset, ppc_fill_vsxregset)
	(ppc_store_vsxregset, ppc_fill_vrregset, ppc_store_vrregset)
	(ppc_fill_evrregset, ppc_store_evrregset): Change prototype to
	take a regcache.  Adjust.
	* linux-s390-low.c (s390_collect_ptrace_register)
	(s390_supply_ptrace_register, s390_fill_gregset, s390_get_pc)
	(s390_set_pc): Change prototype to take a regcache.  Adjust.
	(s390_arch_setup): Adjust.
	* linux-sh-low.c (sh_get_pc, sh_breakpoint_at)
	(sh_fill_gregset): Change prototype to take a regcache.  Adjust.
	* linux-sparc-low.c (sparc_fill_gregset_to_stack)
	(sparc_fill_gregset, sparc_store_gregset_from_stack)
	(sparc_store_gregset, sparc_get_pc): Change prototype to take a
	regcache.  Adjust.
	(sparc_breakpoint_at): Adjust.
	* linux-xtensa-low.c (xtensa_fill_gregset):
	(xtensa_store_gregset):
	(xtensa_fill_xtregset, xtensa_store_xtregset, xtensa_get_pc)
	(xtensa_set_pc): Change prototype to take a regcache.  Adjust.
	* nto-low.c (nto_fetch_registers, nto_store_registers): Change
	prototype to take a regcache.  Adjust.
	* win32-arm-low.c (arm_fetch_inferior_register)
	(arm_store_inferior_register): Change prototype to take a
	regcache.  Adjust.
	* win32-i386-low.c (i386_fetch_inferior_register)
	(i386_store_inferior_register): Change prototype to take a
	regcache.  Adjust.
	* win32-low.c (child_fetch_inferior_registers)
	(child_store_inferior_registers): Change prototype to take a
	regcache.  Adjust.
	(win32_wait): Adjust.
	(win32_fetch_inferior_registers): Change prototype to take a
	regcache.  Adjust.
	(win32_store_inferior_registers): Adjust.
	* win32-low.h (struct win32_target_ops) <fetch_inferior_register,
	store_inferior_register>: Change prototype to take a regcache.
2010-01-20 22:55:38 +00:00
Doug Evans ec8ebe726b * linux-low.c (W_STOPCODE): Provide definition if missing. 2010-01-20 18:29:39 +00:00
Doug Evans 60c3d7b00b * linux-low.c (linux_create_inferior): Wrap use of __SIGRTMIN in
#ifdef.
	(linux_wait_for_event1, linux_init_signals): Ditto.
2010-01-20 18:22:48 +00:00
Vladimir Prus dc146f7c09 Implement core awareness.
* bcache.c (compare_ints): Remove
	(print_percentage): Use compare_positive_ints.
	* defs.h (compare_positive_ints): Declare.
	* linux-nat.h (struct lin_lwp): New field core.
	(linux_nat_core_of_thread_1): Declare.
	* linux-nat.c (add_lwp): Init the 'core' field.
	(linux_nat_wait_1): Record the core.
	(linux_nat_core_of_thread_1, linux_nat_core_of_thread): New.
	(linux_nat_add_target): Register the above.
	* linux-thread-db.c (update_thread_core): New.
	(thread_db_find_new_threads): Update core information for
	every thread.
	* remote.c (struct private_thread_info): New.
	(free_private_thread_info, demand_private_info): New.
	(PACKET_qXfer_threads, use_osdata_threads): New.
	(struct thread_item, threads_parsing_context
	(start_thread, end_thread, thread_attributes)
	(thread_children, threads_children, threads_elements): New.
	(remote_threads_info): Try qXfer:threads before anything
	else.
	(remote_protocol_packets): Register qXfer:threads.
	(remote_open_1): Init use_osdata_threads.
	(struct stop_reply): New field 'core'.
	(remote_parse_stop_reply): Parse core number.
	(process_stop_reply): Record core number.
	(remote_xfer_partial): Handle qXfer:threads.
	(remote_core_of_thread): New.
	(init_remote_ops): Register remote_core_of_thread.
	(_initialize_remote): Register qXfer:read.
	* target.c (target_core_of_thread): New
	* target.h (enum target_object): New value TARGET_OBJECT_THREADS.
	(struct target_ops): New field to_core_of_threads.
	(target_core_of_thread): Declare.
	* gdbthread.h (struct thread_info): New field private_dtor.
	* thread.c (print_thread_info): Report the core.
	* ui-out.c (MAX_UI_OUT_LEVELS): Increase.
	* utils.c (compare_positive_ints): New.
	* features/threads.dtd: New.
	* mi/mi-interp.c (mi_on_normal_stop): Report the core.
	* mi/mi-main.c (struct collect_cores_data, collect_cores)
	(do_nothing, free_vector_of_osdata_items)
	(splay_tree_int_comparator, free_splay_tree): New.
	(print_one_inferior_data): Implemented printing of selected
	inferiors.  Collect and print cores.
	(output_cores): New.
	(mi_cmd_list_thread_groups): Support --recurse.  Permit specifying
	thread groups together with --available.
2010-01-12 21:40:25 +00:00
Joel Brobecker 4c38e0a4fc Update copyright year in most headers.
Automatic update by copyright.sh.
2010-01-01 07:32:07 +00:00
Doug Evans 957f3f49de * linux-low.c: Delete inclusion of ansidecl.h, elf/common.h,
elf/external.h.  Include <elf.h> instead but only if necessary.
2009-12-28 19:45:56 +00:00
Pedro Alves ca5c370d27 * linux-low.c (linux_remove_process): Remove `detaching'
parameter.  Don't release/detach from thread_db here.
	(linux_kill): Release/detach from thread_db here, ...
	(linux_detach): ... and here, before actually detaching.
	(linux_wait_1): ... and here, when a process exits.
	* thread-db.c (any_thread_of): New.
	(thread_db_free): Switch the current inferior to a thread of the
	passed in process.
2009-12-28 16:09:27 +00:00
Doug Evans c5f62d5ff9 gdb/
* linux-nat.c (kill_lwp): Minor cleanup, move definition of
	tkill_failed into ifdef HAVE_TKILL_SYSCALL.  Move setting of errno
	there too.  Delete unnecessary resetting of errno after syscall.
	Minor comment changes to match gdbserver/linux-low.c:kill_lwp.

	gdbserver/
	* linux-low.c (kill_lwp): Use __NR_tkill instead of SYS_tkill.
	Move definition of tkill_failed to ifdef __NR_tkill to avoid gcc
	warning ifndef __NR_tkill.  Move setting of errno there too.
	Delete unnecessary resetting of errno after syscall.
	Minor comment changes to match gdb/linux-nat.c:kill_lwp.
2009-12-21 21:23:43 +00:00
Doug Evans 4ee62156d9 * linux-low.c (my_waitpid): Delete unnecessary prototype. 2009-12-21 17:54:03 +00:00
Doug Evans 07d4f67e9d * linux-low.c (my_waitpid): Move definition away from being in
between linux_tracefork_child/linux_test_for_tracefork.
2009-12-19 01:16:23 +00:00
Doug Evans 1de1badb7a * linux-low.c (linux_read_memory): Fix argument to read. 2009-12-16 21:23:34 +00:00
Pedro Alves fd7dd3e67a * linux-low.c (linux_remove_process): Add `detaching' parameter.
Pass it to thread_db_free.
	(linux_kill, linux_detach, linux_wait_1): Adjust to pass the
	proper `detaching' argument to linux_remove_process.
	* linux-low.h (thread_db_free): Add `detaching' parameter.
	* thread-db.c (thread_db_init): Pass false as `detaching' argument
	to thread_db_free.
	(thread_db_free): Add `detaching' parameter.  Only
	call td_ta_clear_event if detaching from process.
2009-11-16 18:15:05 +00:00
Paul Pluzhnikov cdbfd4198e doc/
2009-10-08  Paul Pluzhnikov  <ppluzhnikov@google.com>

	* gdb.texinfo (Server): Document libthread-db-search-path.

gdbserver/
2009-10-08  Paul Pluzhnikov  <ppluzhnikov@google.com>

	* acinclude.m4: (SRV_CHECK_THREAD_DB, SRV_CHECK_TLS_GET_ADDR): Remove.
	* configure.ac: Adjust.
	* linux-low.h (struct process_info_private): Move members to struct
	thread_db.
	(thread_db_free, thread_db_handle_monitor_command): New prototype.
	* linux-low.c (linux_remove_process): Adjust.
	(linux_wait_for_event_1, linux_look_up_symbols): Likewise.
	* server.c (handle_query): Move code ...
	(handle_monitor_command): ... here. New function.
	* target.h (struct target_ops): New member.
	* thread-db.c (struct thread_db): New.
	(libthread_db_search_path): New variable.
	(thread_db_create_event, thread_db_enable_reporting)
	(find_one_thread, maybe_attach_thread, find_new_threads_callback)
	(thread_db_find_new_threads, (thread_db_get_tls_address): Adjust.
	(try_thread_db_load_1, dladdr_to_soname): New functions.
	(try_thread_db_load, thread_db_load_search): New functions.
	(thread_db_init): Search for libthread_db.
	(thread_db_free): New function.
	(thread_db_handle_monitor_command): Likewise.
	* config.in: Regenerate.
	* configure: Regenerate.
2009-10-09 00:31:01 +00:00
Ulrich Weigand efcbbd1428 ChangeLog:
* linux-nat.c: Include <sys/vfs.h>.
	(SPUFS_MAGIC): Define.
	(spu_enumerate_spu_ids): New function.
	(linux_proc_xfer_spu): New function.
	(linux_xfer_partial): Handle TARGET_OBJECT_SPU.

	(iterate_over_spus): New function.
	(struct linux_spu_corefile_data): New data type.
	(linux_spu_corefile_callback): New function.
	(linux_spu_make_corefile_notes): New function.
	(linux_nat_make_corefile_notes): Call it.

	* corelow.c (struct spuid_list): New data type.
	(add_to_spuid_list): New function.
	(core_xfer_partial): Handle TARGET_OBJECT_SPU.

gdbserver/ChangeLog:

	* linux-low.c: Include <sys/stat.h> and <sys/vfs.h>.
	(SPUFS_MAGIC): Define.
	(spu_enumerate_spu_ids): New function.
	(linux_qxfer_spu): New function.
	(linux_target_ops): Install linux_qxfer_spu.
2009-07-31 15:25:22 +00:00
Daniel Jacobowitz 58d6951de5 * NEWS: Mention ARM VFP support.
* target-descriptions.c (tdesc_register_type): Make public.
	(tdesc_unnumbered_register): New function.
	(tdesc_register_reggroup_p): Allow missing
	pseudo_register_reggroup_p.
	* target-descriptions.h (tdesc_register_type): Declare.
	(tdesc_unnumbered_register): Declare.
	* arm-tdep.c (arm_neon_quad_read, arm_neon_quad_write): New functions.
	(arm_push_dummy_call): Use arm_neon_quad_write.
	(arm_neon_double_type, arm_neon_quad_type): New functions.
	(arm_register_type): Handle VFP and NEON registers.  Override the
	types of double-precision registers for NEON.  Disable FPA registers
	if they are not present.
	(arm_dwarf_reg_to_regnum): Add current VFP and NEON register numbers.
	(arm_return_value): Use arm_neon_quad_write and arm_neon_quad_read.
	(arm_register_name): Handle VFP single and NEON quad registers.
	(arm_pseudo_read, arm_pseudo_write): New functions.
	(arm_gdbarch_init): Check for VFP and NEON in the target description.
	Assign numbers to double-precision registers.  Register VFP and NEON
	pseudo registers.  Remove a shadowed "i" variable.
	* arm-tdep.h (enum gdb_regnum): Add ARM_D0_REGNUM and
	ARM_D31_REGNUM.
	(struct gdbarch_tdep): Add have_neon_pseudos, have_neon,
	have_vfp_registers, have_vfp_pseudos, neon_double_type,
	and neon_quad_type.

	* features/Makefile: Make expedite settings only architecture
	specific.
	(WHICH): Add new ARM descriptions.
	* features/arm-with-neon.xml, features/arm-with-vfpv2.c,
	features/arm-with-vfpv3.c, features/arm-vfpv2.xml,
	features/arm-vfpv3.xml, features/arm-with-vfpv2.xml,
	features/arm-with-vfpv3.xml, features/arm-with-neon.c: New files.
	* regformats/arm-with-neon.dat, regformats/arm-with-vfpv2.dat,
	regformats/arm-with-vfpv3.dat: Generate.

	doc/
	* gdb.texinfo (ARM Features): Document org.gnu.gdb.arm.vfp and
	org.gnu.gdb.arm.neon.

	gdbserver/
	* linux-low.c (linux_write_memory): Update debugging output.
	* Makefile.in (clean): Add new descriptions.
	(arm-with-vfpv2.o, arm-with-vfpv2.c, arm-with-vfpv3.o)
	(arm-with-vfpv3.c, arm-with-neon.o, arm-with-neon.c): New rules.
	* configure.srv: Add new files for arm*-*-linux*.
	* linux-arm-low.c: Add new declarations.
	(PTRACE_GETVFPREGS, PTRACE_SETVFPREGS): Define if undefined.
	(arm_hwcap, HWCAP_VFP, HWCAP_IWMMXT, HWCAP_NEON, HWCAP_VFPv3)
	(HWCAP_VFPv3D16): New.
	(arm_fill_wmmxregset, arm_store_wmmxregset): Check HWCAP_IWMMXT
	instead of __IWMMXT__.
	(arm_fill_vfpregset, arm_store_vfpregset, arm_get_hwcap)
	(arm_arch_setup): New.
	(target_regsets): Remove #ifdef.  Add VFP regset.
	(the_low_target): Use arm_arch_setup.

	testsuite/
	* gdb.base/float.exp: Handle VFP registers.
2009-07-28 18:26:51 +00:00
Daniel Jacobowitz 12b42a1250 * linux-low.c (linux_kill_one_lwp): Adjust kernel workaround to skip
the main thread again.
2009-07-28 17:44:29 +00:00
Doug Evans aa5ca48fad Add h/w watchpoint support to x86-linux, win32-i386.
* Makefile.in (SFILES): Add i386-low.c
	(i386_low_h): Define.
	(i386-low.o): Add dependencies.
	(linux-x86-low.o): Add i386-low.h dependency.
	(win32-i386-low.o): Ditto.
	* i386-low.c: New file.
	* i386-low.h: New file.
	* configure.srv (i[34567]86-*-cygwin*): Add i386-low.o to srv_tgtobj.
	(i[34567]86-*-linux*, i[34567]86-*-mingw*, x86_64-*-linux*): Ditto.
	* linux-low.c (linux_add_process): Initialize arch_private.
	(linux_remove_process): Free arch_private.
	(add_lwp): Initialize arch_private.
	(delete_lwp): Free arch_private.
	(linux_resume_one_lwp): Call the_low_target.prepare_to_resume if
	provided.
	* linux-low.h (process_info_private): New member arch_private.
	(lwp_info): New member arch_private.
	(linux_target_ops): New members new_process, new_thread,
	prepare_to_resume.
	(ptid_of): New macro.
	* linux-x86-low.c: Include stddef.h, i386-low.h.
	(arch_process_info): New struct.
	(arch_lwp_info): New struct.
	(x86_linux_dr_get, x86_linux_dr_set): New functions.
	(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
	(i386_dr_low_get_status): New function.
	(x86_insert_point, x86_remove_point): New functions.
	(x86_stopped_by_watchpoint): New function.
	(x86_stopped_data_address): New function.
	(x86_linux_new_process, x86_linux_new_thread): New functions.
	(x86_linux_prepare_to_resume): New function.
	(the_low_target): Add entries for insert_point, remove_point,
	stopped_by_watchpoint, stopped_data_address, new_process, new_thread,
	prepare_to_resume.
	* server.c (debug_hw_points): New global.
	(monitor_show_help): Document set debug-hw-points.
	(handle_query): Process "set debug-hw-points".
	* server.h (debug_hw_points): Declare.
	(paddress): Declare.
	* utils.c (NUMCELLS, CELLSIZE): New macros.
	(get_sell, xsnprintf, paddress): New functions.
	* win32-arm-low.c (the_low_target): Add entries for insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.
	* win32-i386-low.c: Include i386-low.h.
	(debug_reg_state): Replaces dr.
	(i386_dr_low_set_addr, i386_dr_low_set_control): New functions.
	(i386_dr_low_get_status): New function.
	(i386_insert_point, i386_remove_point): New functions.
	(i386_stopped_by_watchpoint): New function.
	(i386_stopped_data_address): New function.
	(i386_initial_stuff): Update.
	(get_thread_context,set_thread_context,i386_thread_added): Update.
	(the_low_target): Add entries for insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.
	* win32-low.c (win32_insert_watchpoint): New function.
	(win32_remove_watchpoint): New function.
	(win32_stopped_by_watchpoint): New function.
	(win32_stopped_data_address): New function.
	(win32_target_ops): Add entries for insert_watchpoint,
	remove_watchpoint, stopped_by_watchpoint, stopped_data_address.
	* win32-low.h (win32_target_ops): New members insert_point,
	remove_point, stopped_by_watchpoint, stopped_data_address.
2009-06-30 16:35:25 +00:00
Pedro Alves d993e290c9 * server.c (process_serial_event): Re-return unsupported, not
error, if the type isn't recognized.  Re-allow supporting only
	insert or remove packets.  Also call require_running for
	breakpoints.  Add missing break statement to default case.  Tidy.
	* target.h (struct target_ops): Rename insert_watchpoint to
	insert_point, and remove_watchpoint to remove_point.

	* linux-low.h (struct linux_target_ops): Likewise.
	* linux-low.c (linux_insert_watchpoint): Rename to ...
	(linux_insert_point): ... this.  Adjust.
	(linux_remove_watchpoint): Rename to ...
	(linux_remove_point): ... this.  Adjust.
	(linux_target_ops): Adjust.
	* linux-crisv32-low.c (cris_insert_watchpoint): Rename to ...
	(cris_insert_point): ... this.
	(cris_remove_watchpoint): Rename to ...
	(cris_remove_point): ... this.
	(the_low_target): Adjust.
2009-06-25 22:13:53 +00:00
Aleksandar Ristovski 4463ce244d * linux-low.c (usr_fetch_inferior_registers): Remove check for regno 0.
* proc-service.c (ps_lgetregs): Pass -1 to fetch all registers.
	* regcache.c (get_regcache): Likewise.
	* spu-low.c (spu_fetch_registers): Remove 0 to -1 conversion.
	* win32-low.c (child_fetch_inferior_registers): Remove check for
	regno 0.
2009-06-22 19:33:41 +00:00
Pedro Alves cf8fd78b38 2009-06-19 Aleksandar Ristovski <aristovski@qnx.com>
Pedro Alves <pedro@codesourcery.com>

	* target.h (struct target_ops) <supports_multi_process>: New
	callback.
	(target_supports_multi_process): New.
	* server.c (handle_query): Even if GDB reports support, only
	enable multi-process if the target also supports it.  Report
	multi-process support only if the target backend supports it.
	* linux-low.c (linux_supports_multi_process): New function.
	(linux_target_ops): Install it as target_supports_multi_process
	callback.
2009-06-19 13:35:35 +00:00
Doug Evans e27d73f6b0 * linux-low.c (handle_extended_wait): Use linux_resume_one_lwp
to resume the newly created thread, don't call ptrace (PTRACE_CONT)
	directly.
2009-05-24 17:44:19 +00:00
Doug Evans 47c0c97542 * linux-low.c (get_stop_pc): Print pc if debug_threads.
(check_removed_breakpoint, linux_wait_for_lwp): Ditto.
	(linux_resume_one_lwp): Ditto.
2009-05-24 17:37:34 +00:00
Doug Evans 2acc282a5a * linux-low.c (linux_resume_one_lwp): Change type of first arg
from struct inferior_list_entry * to struct lwp_info *.
	All callers updated.
2009-05-24 01:09:22 +00:00
Doug Evans 3da9440a2c (linux_test_for_tracefork): Back out turd from previous check-in. 2009-05-13 17:17:22 +00:00
Doug Evans d0722149ad Biarch support for i386/amd64 gdbserver.
* Makefile.in (SFILES): Remove linux-i386-low.c, linux-x86-64-low.c.
	Add linux-x86-low.c.
	(linux-i386-low.o, linux-x86-64-low.o): Delete.
	(linux-x86-low.o): Add.
	* linux-x86-64-low.c: Delete.
	* linux-i386-low.c: Delete.
	* linux-x86-low.c: New file.
	* configure.srv (i?86-linux srv_tgtobj): Replace linux-i386-low.o with
	linux-x86-low.o.
	(x86_64-linux srv_tgtobj): Replace linux-x86-64-low.o with
	linux-x86-low.o.
	(x86_64-linux srv_regobj): Add reg-i386-linux.o.
	* linux-low.c: Include ansidecl.h, elf/common.h, elf/external.h.
	(linux_child_pid_to_exec_file): New function.
	(elf_64_header_p, elf_64_file_p): New functions.
	(siginfo_fixup): New function.
	(linux_xfer_siginfo): New local inf_siginfo.  Call siginfo_fixup to
	give target a chance to convert layout.
	* linux-low.h (linux_target_ops): New member siginfo_fixup.
	(linux_child_pid_to_exec_file, elf_64_file_p): Declare.
2009-05-12 22:25:00 +00:00
Doug Evans fdeb2a1249 * linux-low.c (regsets_fetch_inferior_registers): Fix memory leak.
(regsets_store_inferior_registers): Ditto.
2009-05-07 23:29:25 +00:00
Pedro Alves a6dbe5dfa5 PR server/10048
* linux-low.c (must_set_ptrace_flags): Delete.
	(linux_create_inferior): Set `lwp->must_set_ptrace_flags' instead
	of the global.
	(linux_attach_lwp_1): Don't set PTRACE_SETOPTIONS here.  Set
	`lwp->must_set_ptrace_flags' instead.
	(linux_wait_for_event_1): If ptrace options here.
	(linux_wait_1): ... not here.
2009-05-06 17:32:59 +00:00
Doug Evans 5091eb23aa * inferiors.c (remove_process): Fix memory leak, free process.
* linux-low.c (linux_remove_process): New function.
	(linux_kill): Call it instead of remove_process.
	(linux_detach, linux_wait_1): Ditto.
2009-04-30 18:35:55 +00:00
Pedro Alves 55ac2b9961 * linux-low.c (usr_store_inferior_registers): Declare local `pid'
variable.
2009-04-03 11:40:02 +00:00
Pedro Alves 95954743cb 2009-04-01 Pedro Alves <pedro@codesourcery.com>
Implement the multiprocess extensions, and add linux multiprocess
	support.

	* server.h (ULONGEST): Declare.
	(struct ptid, ptid_t): New.
	(minus_one_ptid, null_ptid): Declare.
	(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
	(ptid_get_tid, ptid_equal, ptid_is_pid): Declare.
	(struct inferior_list_entry): Change `id' type from unsigned from
	to ptid_t.
	(struct sym_cache, struct breakpoint, struct
	process_info_private): Forward declare.
	(struct process_info): Declare.
	(current_process): Declare.
	(all_processes): Declare.
	(initialize_inferiors): Declare.
	(add_thread): Adjust to use ptid_t.
	(thread_id_to_gdb_id, thread_to_gdb_id, gdb_id_to_thread_id): Ditto.
	(add_process, remove_process, find_thread_pid): Declare.
	(find_inferior_id): Adjust to use ptid_t.
	(cont_thread, general_thread, step_thread): Change type to ptid_t.
	(multi_process): Declare.
	(push_event): Adjust to use ptid_t.
	(read_ptid, write_ptid): Declare.
	(prepare_resume_reply): Adjust to use ptid_t.
	(clear_symbol_cache): Declare.
	* inferiors.c (all_processes): New.
	(null_ptid, minus_one_ptid): New.
	(ptid_build, pid_to_ptid, ptid_get_pid, ptid_get_lwp)
	(ptid_get_tid, ptid_equal, ptid_is_pid): New.
	(add_thread): Change unsigned long to ptid.  Remove gdb_id
	parameter.  Adjust.
	(thread_id_to_gdb_id, thread_to_gdb_id): Change unsigned long to ptid.
	(gdb_id_to_thread): Rename to ...
	(find_thread_pid): ... this.  Change unsigned long to ptid.
	(gdb_id_to_thread_id, find_inferior_id): Change unsigned long to ptid.
	(loaded_dll, pull_pid_from_list): Adjust.
	(add_process, remove_process, find_process_pid)
	(get_thread_process, current_process, initialize_inferiors): New.
	* target.h (struct thread_resume) <thread>: Change type to ptid_t.
	(struct target_waitstatus) <related_pid>: Ditto.
	(struct target_ops) <kill, detach>: Add `pid' argument.  Change
	return type to int.
	(struct target_ops) <join>: Add `pid' argument.
	(struct target_ops) <thread_alive>: Change pid's type to ptid_t.
	(struct target_ops) <wait>: Add `ptid' field.  Change return type
	to ptid.
	(kill_inferior, detach_inferior, join_inferior): Add `pid' argument.
	(mywait): Add `ptid' argument.  Change return type to ptid_t.
	(target_pid_to_str): Declare.
	* target.c (set_desired_inferior): Adjust to use ptids.
	(mywait): Add new `ptid' argument.  Adjust.
	(target_pid_to_str): New.
	* mem-break.h (free_all_breakpoints): Declare.
	* mem-break.c (breakpoints): Delelete.
	(set_breakpoint_at, delete_breakpoint, find_breakpoint_at)
	(check_mem_read, check_mem_write, delete_all_breakpoints): Adjust
	to use per-process breakpoint list.
	(free_all_breakpoints): New.
	* remote-utils.c (struct sym_cache) <name>: Drop `const'.
	(symbol_cache, all_symbols_looked_up): Delete.
	(hexchars): New.
	(ishex, unpack_varlen_hex, write_ptid, hex_or_minus_one,
	read_ptid): New.
	(prepare_resume_reply): Change ptid argument's type from unsigned
	long to ptid_t.  Adjust.  Implement W;process and X;process.
	(free_sym_cache, clear_symbol_cache): New.
	(look_up_one_symbol): Adjust to per-process symbol cache.  *
	* server.c (cont_thread, general_thread, step_thread): Change type
	to ptid_t.
	(attached): Delete.
	(multi_process): New.
	(last_ptid): Change type to ptid_t.
	(struct vstop_notif) <ptid>: Change type to ptid_t.
	(queue_stop_reply, push_event): Change `ptid' argument's type to
	ptid_t.
	(discard_queued_stop_replies): Add `pid' argument.
	(start_inferior): Adjust to use ptids.  Adjust to mywait interface
	changes.  Don't reference the `attached' global.
	(attach_inferior): Adjust to mywait interface changes.
	(handle_query): Adjust to use ptids.  Parse GDB's qSupported
	features.  Handle and report "multiprocess+".  Handle
	"qAttached:PID".
	(handle_v_cont): Adjust to use ptids.  Adjust to mywait interface
	changes.
	(handle_v_kill): New.
	(handle_v_stopped): Adjust to use target_pid_to_str.
	(handle_v_requests): Allow multiple attaches and runs when
	multiprocess extensions are in effect.  Handle "vKill".
	(myresume): Adjust to use ptids.
	(queue_stop_reply_callback): Add `arg' parameter.  Handle it.
	(handle_status): Adjust to discard_queued_stop_replies interface
	change.
	(first_thread_of, kill_inferior_callback)
	(detach_or_kill_inferior_callback, join_inferiors_callback): New.
	(main): Call initialize_inferiors.  Adjust to use ptids, killing
	and detaching from all inferiors.  Handle multiprocess packet
	variants.
	* linux-low.h: Include gdb_proc_service.h.
	(struct process_info_private): New.
	(struct linux_target_ops) <pid_of>: Use ptid_get_pid.
	<lwpid_of>: Use ptid_get_lwp.
	(get_lwp_thread): Adjust.
	(struct lwp_info): Add `dead' member.
	(find_lwp_pid): Declare.
	* linux-low.c (thread_db_active): Delete.
	(new_inferior): Adjust comment.
	(inferior_pid): Delete.
	(linux_add_process): New.
	(handle_extended_wait): Adjust.
	(add_lwp): Change unsigned long to ptid.
	(linux_create_inferior): Add process to processes table.  Adjust
	to use ptids.  Don't set new_inferior here.
	(linux_attach_lwp): Rename to ...
	(linux_attach_lwp_1): ... this.  Add `initial' argument.  Handle
	it.  Adjust to use ptids.
	(linux_attach_lwp): New.
	(linux_attach): Add process to processes table.  Don't set
	new_inferior here.
	(struct counter): New.
	(second_thread_of_pid_p, last_thread_of_process_p): New.
	(linux_kill_one_lwp): Add `args' parameter.  Handle it.  Adjust to
	multiple processes.
	(linux_kill): Add `pid' argument.  Handle it.  Adjust to multiple
	processes.  Remove process from process table.
	(linux_detach_one_lwp): Add `args' parameter.  Handle it.  Adjust
	to multiple processes.
	(any_thread_of): New.
	(linux_detach): Add `pid' argument, and handle it.  Remove process
	from processes table.
	(linux_join): Add `pid' argument.  Handle it.
	(linux_thread_alive): Change unsighed long argument to ptid_t.
	Consider dead lwps as not being alive.
	(status_pending_p): Rename `dummy' argument to `arg'.  Filter out
	threads we're not interested in.
	(same_lwp, find_lwp_pid): New.
	(linux_wait_for_lwp): Change `pid' argument's type from int to
	ptid_t.  Adjust.
	(linux_wait_for_event): Rename to ...
	(linux_wait_for_event_1): ... this.  Change `pid' argument's type
	from int to ptid_t.  Adjust.
	(linux_wait_for_event): New.
	(linux_wait_1): Add `ptid' argument.  Change return type to
	ptid_t.  Adjust.  Use last_thread_of_process_p.  Remove processes
	that exit from the process table.
	(linux_wait): Add `ptid' argument.  Change return type to ptid_t.
	Adjust.
	(mark_lwp_dead): New.
	(wait_for_sigstop): Adjust to use ptids.  If a process exits while
	stopping all threads, mark its main lwp as dead.
	(linux_set_resume_request, linux_resume_one_thread): Adjust to use
	ptids.
	(fetch_register, usr_store_inferior_registers)
	(regsets_fetch_inferior_registers)
	(regsets_store_inferior_registers, linux_read_memory)
	(linux_write_memory): Inline `inferior_pid'.
	(linux_look_up_symbols): Adjust to use per-process
	`thread_db_active'.
	(linux_request_interrupt): Adjust to use ptids.
	(linux_read_auxv): Inline `inferior_pid'.
	(initialize_low): Don't reference thread_db_active.
	* gdb_proc_service.h (struct ps_prochandle) <pid>: Remove.
	* proc-service.c (ps_lgetregs): Use find_lwp_pid.
	(ps_getpid): Return the pid of the current inferior.
	* thread-db.c (proc_handle, thread_agent): Delete.
	(thread_db_create_event, thread_db_enable_reporting): Adjust to
	per-process data.
	(find_one_thread): Change argument type to ptid_t.  Adjust to
	per-process data.
	(maybe_attach_thread): Adjust to per-process data and ptids.
	(thread_db_find_new_threads): Ditto.
	(thread_db_init): Ditto.
	* spu-low.c (spu_create_inferior, spu_attach): Add process to
	processes table.  Adjust to use ptids.
	(spu_kill, spu_detach): Adjust interface.  Remove process from
	processes table.
	(spu_join, spu_thread_alive): Adjust interface.
	(spu_wait): Adjust interface.  Remove process from processes
	table.  Adjust to use ptids.
	* win32-low.c (current_inferior_tid): Delete.
	(current_inferior_ptid): New.
	(debug_event_ptid): New.
	(thread_rec): Take a ptid.  Adjust.
	(child_add_thread): Add `pid' argument.  Adjust to use ptids.
	(child_delete_thread): Ditto.
	(do_initial_child_stuff): Add `attached' argument.  Add process to
	processes table.
	(child_fetch_inferior_registers, child_store_inferior_registers):
	Adjust.
	(win32_create_inferior): Pass 0 to do_initial_child_stuff.
	(win32_attach): Pass 1 to do_initial_child_stuff.
	(win32_kill): Adjust interface.  Remove process from processes
	table.
	(win32_detach): Ditto.
	(win32_join): Adjust interface.
	(win32_thread_alive): Take a ptid.
	(win32_resume): Adjust to use ptids.
	(get_child_debug_event): Ditto.
	(win32_wait): Adjust interface.  Remove exiting process from
	processes table.
2009-04-01 22:50:24 +00:00
Pedro Alves bd99dc8583 Non-stop mode support.
* server.h (non_stop): Declare.
	(gdb_client_data, handler_func): Declare.
	(delete_file_handler, add_file_handler, start_event_loop):
	Declare.
	(handle_serial_event, handle_target_event, push_event)
	(putpkt_notif): Declare.
	* target.h (enum resume_kind): New.
	(struct thread_resume): Replace `step' field by `kind' field.
	(TARGET_WNOHANG): Define.
	(struct target_ops) <wait>: Add `options' argument.
	<supports_non_stop, async, start_non_stop>: New fields.
	(target_supports_non_stop, target_async): New.
	(start_non_stop): Declare.
	(mywait): Add `options' argument.
	* target.c (mywait): Add `options' argument.  Print child exit
	notifications here.
	(start_non_stop): New.
	* server.c (non_stop, own_buf, mem_buf): New globals.
	(struct vstop_notif): New.
	(notif_queue): New global.
	(queue_stop_reply, push_event, discard_queued_stop_replies)
	(send_next_stop_reply): New.
	(start_inferior): Adjust to use resume_kind.  Adjust to mywait
	interface changes.
	(attach_inferior): In non-stop mode, don't wait for the target
	here.
	(handle_general_set): Handle QNonStop.
	(handle_query): When handling qC, return the current general
	thread, instead of the first thread of the list.
	(handle_query): If the backend supports non-stop mode, include
	QNonStop+ in the qSupported query response.
	(handle_v_cont): Adjust to use resume_kind.  Handle resume_stop
	and non-stop mode.
	(handle_v_attach, handle_v_run): Handle non-stop mode.
	(handle_v_stopped): New.
	(handle_v_requests): Report support for vCont;t.  Handle vStopped.
	(myresume): Adjust to use resume_kind.  Handle non-stop.
	(queue_stop_reply_callback): New.
	(handle_status): Handle non-stop mode.
	(main): Clear non_stop flag on reconnection.  Use the event-loop.
	Refactor serial protocol handling from here ...
	(process_serial_event): ... to this new function.  When GDB
	selects any thread, select one here.  In non-stop mode, wait until
	GDB acks all pending events before exiting.
	(handle_serial_event, handle_target_event): New.
	* remote-utils.c (remote_open): Install remote_desc in the event
	loop.
	(remote_close): Remove remote_desc from the event loop.
	(putpkt_binary): Rename to...
	(putpkt_binary_1): ... this.  Add `is_notic' argument.  Handle it.
	(putpkt_binary): New as wrapper around putpkt_binary_1.
	(putpkt_notif): New.
	(prepare_resume_reply): In non-stop mode, don't change the
	general_thread.
	* event-loop.c: New.
	* Makefile.in (OBJ): Add event-loop.o.
	(event-loop.o): New rule.

	* linux-low.h (pid_of): Moved here.
	(lwpid_of): New.
	(get_lwp_thread): Use lwpid_of.
	(struct lwp_info): Delete `lwpid' field.  Add `suspended' field.
	* linux-low.c (pid_of): Delete.
	(inferior_pid): Use lwpid_of.
	(linux_event_pipe): New.
	(target_is_async_p): New.
	(delete_lwp): New.
	(handle_extended_wait): Use lwpid_of.
	(add_lwp): Don't set lwpid field.
	(linux_attach_lwp): Adjust debug output.  Use lwpid_of.
	(linux_kill_one_lwp): If killing a running lwp, stop it first.
	Use lwpid_of.  Adjust to linux_wait_for_event interface changes.
	(linux_detach_one_lwp): If detaching from a running lwp, stop it
	first.  Adjust to linux_wait_for_event interface changes.  Use
	lwpid_of.
	(linux_detach): Don't delete the main lwp here.
	(linux_join): Use my_waitpid.  Avoid signal_pid.  Use lwpid_of.
	(status_pending_p): Don't consider explicitly suspended lwps.
	(linux_wait_for_lwp): Take an integer pid instead of a lwp_info
	pointer.  Add OPTIONS argument.  Change return type to int.  Use
	my_waitpid instead of sleeping.  Handle WNOHANG.  Use lwpid_of.
	(linux_wait_for_event): Take an integer pid instead of a lwp_info
	pointer.  Add status pointer argument.  Return a pid instead of a
	status.  Use lwpid_of.  Adjust to linux_wait_for_lwp interface
	changes.  In non-stop mode, don't switch to a random thread.
	(linux_wait): Rename to...
	(linux_wait_1): ... this.  Add target_options argument, and handle
	it.  Adjust to use resume_kind.  Use lwpid_of.  In non-stop mode,
	don't handle the continue thread.  Handle TARGET_WNOHANG.  Merge
	clean exit and signal exit code.  Don't stop all threads in
	non-stop mode.  In all-stop mode, only stop all threads when
	reporting a stop to GDB.  Handle explicit thread stop requests.
	(async_file_flush, async_file_mark): New.
	(linux_wait): New.
	(send_sigstop): Use lwpid_of.
	(wait_for_sigstop): Use lwpid_of.  Adjust to linux_wait_for_event
	interface changes.  In non-stop mode, don't switch to a random
	thread.
	(linux_resume_one_lwp): Use lwpid_of.
	(linux_continue_one_thread, linux_queue_one_thread): Merge into ...
	(linux_resume_one_thread): ... this.  Handle resume_stop.  In
	non-stop mode, don't look for pending flag in all threads.
	(resume_status_pending_p): Don't consider explicitly suspended
	threads.
	(my_waitpid): Reimplement.  Emulate __WALL.
	(linux_request_interrupt, linux_read_offsets, linux_xfer_siginfo):
	Use lwpid_of.
	(sigchld_handler, linux_supports_non_stop, linux_async)
	(linux_start_non_stop): New.
	(linux_target_ops): Register linux_supports_non_stop, linux_async
	and linux_start_non_stop.
	(initialize_low): Install SIGCHLD handler.
	* thread-db.c (thread_db_create_event, find_one_thread)
	(thread_db_get_tls_address): Use lwpid_of.
	* win32-low.c (win32_detach): Adjust to use resume_kind.
	(win32_wait): Add `options' argument.
	* spu-low.c (spu_resume): Adjust to use resume_kind.
	(spu_wait): Add `options' argument.
2009-04-01 22:48:05 +00:00
Pedro Alves 5b1c542ea1 Decouple target code from remote protocol.
* target.h (enum target_waitkind): New.
	(struct target_waitstatus): New.
	(struct target_ops) <wait>: Return an unsigned long.  Take a
	target_waitstatus pointer instead of a char pointer.
	(mywait): Likewise.
	* target.c (mywait): Change prototype to return an unsigned long.
	Take a target_waitstatus pointer instead of a char pointer.  Adjust.
	* server.h (thread_from_wait, old_thread_from_wait): Delete
	declarations.
	(prepare_resume_reply): Change prototype to take a
	target_waitstatus.
	* server.c (thread_from_wait, old_thread_from_wait): Delete.
	(last_status, last_ptid): New.
	(start_inferior): Remove "statusptr" argument.  Adjust.  Return a
	pid instead of a signal.
	(attach_inferior): Remove "status" and "signal" parameters.
	Adjust.
	(handle_query): For qGetTLSAddr, parse the thread id with strtol,
	not as an address.
	(handle_v_cont, handle_v_attach, handle_v_run, handle_v_kill)
	(handle_v_requests, myresume): Remove "status" and "signal"
	parameters.  Adjust.
	(handle_status): New.
	(main): Delete local `status'.  Adjust.
	* remote-utils.c: Include target.h.
	(prepare_resume_reply): Change prototype to take a
	target_waitstatus.  Adjust.

	* linux-low.c (linux_wait): Adjust to new target_ops->wait
	interface.
	* spu-low.c (spu_wait): Adjust.
	* win32-low.c (enum target_waitkind, struct target_waitstatus):
	Delete.
	(win32_wait): Adjust.
2009-04-01 22:31:45 +00:00