+2010-04-12 H.J. Lu <hongjiu.lu@intel.com>
+
+ * linux-x86-low.c (x86_linux_update_xmltarget): Avoid unused
+ variable warning on Linux/x86-64.
+
+2010-04-11 Pedro Alves <pedro@codesourcery.com>
+
+ 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 Pedro Alves <pedro@codesourcery.com>
+
+ * regcache.c (realloc_register_cache): Invalidate inferior's
+ regcache before recreating it.
+
+2010-04-09 Pedro Alves <pedro@codesourcery.com>
+
+ * tracepoint.c (cmd_qtstatus): Report trace buffer circularity.
+
+2010-04-09 Stan Shebs <stan@codesourcery.com>
+ Pedro Alves <pedro@codesourcery.com>
+
+ * 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.
+
+2010-04-08 H.J. Lu <hongjiu.lu@intel.com>
+
+ * Makefile.in (clean): Also remove i386-mmx.c i386-mmx-linux.c.
+ (i386-mmx.o): New.
+ (i386-mmx.c): Likewise.
+ (i386-mmx-linux.o): Likewise.
+ (i386-mmx-linux.c): Likewise.
+
+ * configure.srv (srv_i386_regobj): Add i386-mmx.o.
+ (srv_i386_linux_regobj): Add i386-mmx-linux.o.
+ (srv_i386_xmlfiles): Add i386/i386-mmx.xml.
+ (srv_i386_linux_xmlfiles): Add i386/i386-mmx-linux.xml.
+
+ * linux-x86-low.c (init_registers_i386_mmx_linux): New.
+ (x86_linux_update_xmltarget): Call init_registers_i386_mmx_linux
+ and return if ptrace PTRACE_GETFPXREGS failed in 32bit.
+
+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.
+
+2010-04-03 Pedro Alves <pedro@codesourcery.com>
+
+ * 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.
+
+2010-04-01 Pedro Alves <pedro@codesourcery.com>
+
+ * 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 Pedro Alves <pedro@codesourcery.com>
+
+ * mem-break.c (struct raw_breakpoint): New field shlib_disabled.
+ (set_gdb_breakpoint_at): If GDB is inserting a breakpoint on top
+ of another, then delete the previous, and validate all
+ breakpoints.
+ (validate_inserted_breakpoint): New.
+ (delete_disabled_breakpoints): New.
+ (validate_breakpoints): New.
+ (check_mem_read): Validate breakpoints before trusting their
+ shadow. Delete disabled breakpoints.
+ (check_mem_write): Validate breakpoints before trusting they
+ should be inserted. Delete disabled breakpoints.
+ * mem-break.h (validate_breakpoints):
+ * server.c (handle_query): Validate breakpoints when we see a
+ qSymbol query.
+
+2010-04-01 Pedro Alves <pedro@codesourcery.com>
+
+ * 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.
+
+2010-03-24 Pedro Alves <pedro@codesourcery.com>
+
+ * 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 Pedro Alves <pedro@codesourcery.com>
+
+ * mem-break.c (enum bkpt_type): New.
+ (struct breakpoint): New field `type'.
+ (set_breakpoint_at): Change return type to struct breakpoint
+ pointer. Set type to `other_breakpoint' by default.
+ (delete_breakpoint): Rewrite, supporting more than one breakpoint
+ in the breakpoint list.
+ (delete_reinsert_breakpoints): Only delete reinsert breakpoints.
+ (reinsert_breakpoint): Rename to ...
+ (reinsert_raw_breakpoint): ... this.
+ (reinsert_breakpoints_at): Adjust.
+ * mem-break.h (struct breakpoint): Declare.
+ (set_breakpoint_at): Change return type to struct breakpoint
+ pointer.
+
+2010-03-24 Pedro Alves <pedro@codesourcery.com>
+
+ * server.c (handle_query): Assign, not compare.
+
+2010-03-24 Pedro Alves <pedro@codesourcery.com>
+
+ 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.
+
2010-03-23 Michael Snyder <msnyder@vmware.com>
* server.c (crc32): New function.
projects / deliverable / binutils-gdb.git / blobdiff