lr_register.
(rs6000_in_function_epilogue_p): Check for bctr.
(skip_prologue): Initialize lr_register. Set lr_reg to a register
number. Set gpr_mask and used_bl. Continue scanning while some
expected registers are not saved. Set lr_register if LR is not
stored.
(rs6000_frame_cache): Handle gpr_mask and lr_register.
* gdb.arch/powerpc-prologue.exp: Correct saved registers.
('F' format) for @FIX names generated by the loader, retaining only
the minimal symbols (and no partial symbol tables) for these names.
Fixes warning messages about symbols that are found in partial
symbol tables, but not full symbol tables.
Include "features/rs6000/powerpc-vsx64.c".
(ppc_supply_vsxregset): New function.
(ppc_collect_vsxregset): New function.
(IS_VSX_PSEUDOREG): New macro.
(IS_EFP_PSEUDOREG): New macro.
(vsx_register_p): New function.
(ppc_vsx_support_p): New function.
(rs6000_builtin_type_vec128): New function.
(rs6000_register_name): Hide upper halves of vs0~vs31. Return
correct names for VSX registers and EFPR registers.
(rs6000_pseudo_register_type): Return correct types for VSX
and EFPR registers.
(rs6000_pseudo_register_reggroup_p): Return correct group for
VSX and EFPR registers.
(ppc_pseudo_register_read): Rename to dfp_pseudo_register_read.
(ppc_pseudo_register_write): Rename to dfp_pseudo_register_write.
(vsx_pseudo_register_read): New function.
(vsx_pseudo_register_write): New function.
(efpr_pseudo_register_read): New function.
(efpr_pseudo_register_write): New function.
(rs6000_pseudo_register_read): Call new VSX and EFPR read functions.
(rs6000_pseudo_register_write): Call new VSX and EFPR write functions.
(rs6000_gdbarch_init): Declare have_vsx.
Initialize new upper half VSX registers.
Initialize VSX-related and EFPR-related pseudo-registers variables.
Adjust the number of pseudo registers accordingly.
* ppc-linux-nat.c: Define PTRACE_GETVSXREGS, PTRACE_SETVSXREGS
and SIZEOF_VSRREGS.
(gdb_vsxregset_t): New type.
(have_ptrace_getsetvsxregs): New variable.
(fetch_vsx_register): New function.
(fetch_register): Handle VSX registers.
(fetch_vsx_registers): New function.
(fetch_ppc_registers): Handle VSX registers.
(store_ppc_registers): Handle VSX registers.
(store_vsx_register): New function.
(store_register): Handle VSX registers.
(store_vsx_registers): New function.
(ppc_linux_read_description): Handle VSX-enabled inferiors.
(gdb_vsxregset_t): New type.
(supply_vsxregset): New function.
(fill_vsxregset): New function.
* ppc-tdep.h (vsx_register_p): New prototype.
(vsx_support_p): New prototype.
(ppc_vsr0_regnum): New variable.
(ppc_vsr0_upper_regnum): Likewise.
(ppc_efpr0_regnum): Likewise.
(ppc_builtin_type_vec128): New type.
(ppc_num_vsrs): New constant.
(ppc_num_vshrs): New constant.
(ppc_num_efprs): Likewise.
Define POWERPC_VEC_VSX PPC_VSR0_UPPER_REGNUM and PPC_VSR31_UPPER_REGNUM.
(ppc_supply_vsxregset): New prototype.
(ppc_collect_vsxregset): New prototype.
* ppc-linux-tdep.c: Include "features/rs6000/powerpc-vsx32l.c"
Include "features/rs6000/powerpc-vsx64l.c".
(_initialize_ppc_linux_tdep): Initialize VSX-enabled targets.
(ppc_linux_regset_sections): Add new ".reg-ppc-vsx" field.
(ppc32_linux_vsxregset): New 32-bit VSX-enabled regset.
(ppc_linux_regset_from_core_section): Handle VSX core section.
(ppc_linux_core_read_description): Support VSX-enabled core files.
* ppc-linux-tdep.h: Declare *tdesc_powerpc_vsx32l
Declare tdesc_powerpc_vsx64l
* corelow.c (get_core_register_section): Support VSX-enabled
core files.
* features/rs6000/power-vsx.xml: New VSX descriptions.
* features/rs6000/powerpc-vsx32.xml: New file.
* features/rs6000/powerpc-vsx32l.xml: New file.
* features/rs6000/powerpc-vsx64.xml: New file.
* features/rs6000/powerpc-vsx64l.xml: New file.
* features/rs6000/powerpc-vsx32.c: New file (generated).
* features/rs6000/powerpc-vsx32l.c: New file (generated).
* features/rs6000/powerpc-vsx64.c: New file (generated).
* features/rs6000/powerpc-vsx64l.c: New file (generated).
* features/Makefile: Updated with new descriptions.
* regformats/rs6000/powerpc-vsx32l.dat: New file (generated).
* regformats/rs6000/powerpc-vsx64l.dat: New file (generated).
* testsuite/gdb.arch/vsx-regs.c: New source file.
* testsuite/gdb.arch/vsx-regs.exp: New testcase.
* testsuite/lib/gdb.exp (skip_vsx_tests): New function.
* macrocmd.c (macro_define_command): Check for NULL argument.
(macro_undef_command): Likewise.
gdb/testsuite:
* gdb.base/macscp.exp: Add regression test for "macro define" or
"macro undef" with no arguments.
* breakpoint.c (always_inserted_auto, always_inserted_on)
(always_inserted_off, always_inserted_enums): New.
(always_inserted_mode): Change type to char* and point to
always_inserted_auto.
(show_always_inserted_mode): In auto mode, also show the current
effect of the option.
(breakpoints_always_inserted_mode): Adjust for the new auto mode.
(_initialize_breakpoint): Make the "set breakpoints
always-inserted" command an enum command. Extend help to describe
the auto mode.
gdb/doc/
* gdb.texinfo (breakpoint always-inserted) Describe the auto mode
setting, and make it the default.
(Non-Stop Mode): Remove "set breakpoints always-inserted 1" from
non-stop script example.
2008-08-12 Sandra Loosemore <sandra@codesourcery.com>
* gdb.texinfo (Remote Configuration): Document set remote noack-packet.
(Remote Protocol): Add Packet Acknowledgment to menu.
(Overview): Mention +/- can be disabled, and point to new section
where this is discussed in detail.
(General Query Packets): Document QStartNoAckMode packet, and
corresponding qSupported reply.
(Packet Acknowledgment): New section.
gdb/
2008-08-12 Pedro Alves <pedro@codesourcery.com>
Add no-ack mode to the remote protocol --- optionally stop ACKing
packets and responses when we have a reliable communication
medium.
Based on Apple's GDB, by Jason Molenda <jmolenda@apple.com>
* remote.c (struct remote_state): Add noack_mode field.
(PACKET_QStartNoAckMode): New.
(remote_start_remote): Don't any outstanding packet here.
(remote_open_1): Clear noack_mode. Ack any outstanding packet
here. Activate noack mode if requested.
(remote_protocol_features): Add QStartNoAckMode.
(remote_open_1):
(putpkt_binary): Don't send ack in noack mode.
(read_frame): Don't recompute the checksum in noack mode.
(getpkt_sane): Skip sending ack if in noack mode.
(_initialize_remote): Add set/show remote noack mode.
* NEWS: Note the new features.
gdb/gdbserver/
2008-08-12 Pedro Alves <pedro@codesourcery.com>
* remote-utils.c (noack_mode, transport_is_reliable): New globals.
(remote_open): Set or clear transport_is_reliable.
(putpkt_binary): Don't expect acks in noack mode.
(getpkt): Don't send ack/nac in noack mode.
* server.c (handle_general_set): Handle QStartNoAckMode.
(handle_query): If connected by tcp pass QStartNoAckMode+ in
qSupported.
(main): Reset noack_mode on every connection.
* server.h (noack_mode): Declare.
* disasm.c (gdb_disassemble_info): Set endian_code.
* gdbarch.sh (gdbarch_info): New field byte_order_for_code.
* gdbarch.h, gdbarch.c: Regenerate.
* arch-utils.c (initialize_current_architecture): Set the
default byte_order_for_code.
(gdbarch_info_init): Ditto.
(gdbarch_info_fill): Ditto.
* arm-tdep.c (SWAP_INT, SWAP_SHORT): New macros.
(thumb_analyze_prologue): Swap halfword if code endianness is
different from general endianness.
(arm_skip_prologue): Similarly.
(arm_scan_prologue): Ditto.
(thumb_get_next_pc): Ditto.
(arm_get_next_pc): Ditto.
(arm_gdbarch_init): Set byte_order_for_code from BE8 flag,
choose correct endianness for breakpoints.
call.
* cp-name-parser.y: Include "config.h".
* xml-tdesc.c (fetch_xml_from_file): Properly cast sentinel in
concat call.
* gdb_select.h: Include sys/time.h if sys/select.h is not
available.
(go32_stop, go32_kill_inferior): Delete the main thread.
(go32_create_inferior): Add it.
(go32_thread_alive, go32_pid_to_str): New.
(init_go32_ops): Register go32_thread_alive and go32_pid_to_str.
gdbarch to i386_fp_regnum_p and i386_fpc_regnum_p.
(go32_xfer_memory): Change type of myaddr parameter to gdb_byte.
(struct seg_descr, struct seg_descr): pack the whole struct
instead of each member individually.
DT_HP_DEBUG_PRIVATE. Add warning if DT_HP_DEBUG_PRIVATE is not set.
Revise comment.
(pa64_current_sos): Remove map private warning warning.
* solib-som.c: Include string.h and sys/utsname.h.
(get_hpux_major_release): New function.
(som_solib_create_inferior_hook): Read dynamic linker header. Warn
about shared library private mapping on HP-UX 11 and later. Only force
private mapping of shared libraries on HP-UX 10 and earlier.
(link_map_start): Delete warning.
H.J. Lu <hongjiu.lu@intel.com>
Mark Kettenis <kettenis@gnu.org>
* amd64-tdep.c (amd64_frame_cache): Add saved_sp_reg.
(amd64_init_frame_cache): Initialize saved_sp_reg.
(amd64_analyze_stack_align): New.
(amd64_analyze_prologue): Call it.
(amd64_frame_cache): Use saved_sp_reg if it is invalid. Don't set
%rip to 8 when halfway aligning the stack.
* amd64-tdep.h (amd64_regnum): Add AMD64_R9_REGNUM to
AMD64_R14_REGNUM.
* i386-tdep.c (i386_frame_cache): Remove stack_align. Add
saved_sp_reg.
(i386_alloc_frame_cache): Remove stack_align. Initialize
saved_sp_reg to -1.
(i386_analyze_stack_align): Rewrite.
(i386_frame_cache): Use saved_sp_reg if it is valid.
(target_pre_inferior): Call no_shared_libraries.
* infcmd.c (run_command_1): Do not call objfile_purge_solibs
or clear_solib.
(attach_command): Do not call clear_solib.
(remote_m32r_ptid): New.
(m32r_close): Delete the main thread.
(m32r_resume): Set inferior_ptid toA remote_m32r_ptid. Add the
main thread.
(m32r_kill, m32r_load, sdireset_command): Delete the main thread.
(_initialize_remote_m32r): Initialize remote_m32r_ptid.
* spu-tdep.c (info_spu_dma_cmdlist): Only show entries with
the valid bit set. Ensure display order respects partial
order defined by dependency bits.
testsuite/ChangeLog:
* gdb.arch/spu-info.exp: Updated for "info spu dma" changes.
standard Tcl configury bits.
Remove all Tcl, Tk, Itcl, Itk, etc definitions.
* configure.ac: Don't check if ../itcl exists when building
gdbtk. It could be installed.
Rewrite gdbtk configury to allow for using system-supplied
Tcl and Tk. Gdbtk no longer requires build-time access to
itcl and itk.
* Makefile.in: Remove everything related to itcl and itk.
Rewrite the Tcl bits for gdbtk to correspond to rewrite of
configure.ac.
Remove v850ice.o build rule.
(ALL_TCL_CFLAGS): New convenience defintion. Change all
gdbtk sources to use it.
* configure: Regenerate.
(linux_nat_has_pending_sigint): New function, based on
linux_nat_has_pending.
(set_ignore_sigint, maybe_clear_ignore_sigint): New functions.
(stop_wait_callback): Remove flush_mask handling. Honor
ignore_sigint. Call maybe_clear_ignore_sigint. Pass NULL
to recursive calls.
(linux_nat_has_pending, flush_callback): Remove.
(linux_nat_filter_event): Check for ignore_sigint.
(linux_nat_wait): Remove flush_mask support and call to
flush_callback. Use set_ignore_sigint and maybe_clear_ignore_sigint.
* linux-nat.h (struct lwp_info): Add ignore_sigint field.
* gdb.threads/manythreads.exp: Use remote_expect instead of after.
Add a test for duplicated SIGINTs.
report events from resumed threads.
* gdb.threads/schedlock.exp (get_args): Update to work for any
value of NUM.
(Top level): Report the number of threads that did not resume.
PR gdb/1158:
* valops.c (value_struct_elt): Treat function-valued field as a
static method.
gdb/testsuite:
* gdb.base/callfuncs.c (struct struct_with_fnptr): New struct.
(function_struct, function_struct_ptr): New globals.
* gdb.base/callfuncs.exp (do_function_calls): Test calling via a
function pointer in a struct.
128-bit long doubles in even-odd pairs of FPRs. Do not
right-align float arguments for big-endian.
(mips_n32n64_return_value): Apply return value convention for
structs containing one or two floating-point values to soft-float
as well as hard-float. Handle 128-bit long doubles in such
structs.
(mips_o32_push_dummy_call): Only skip one integer register for a
float argument passed in an FPR.
Chris Demetriou <cgd@google.com>
* elfread.c (elf_symfile_segments): Fix the check that each loadable
section fits within an ELF segment to handle ELF segments that hit
the end of the address space.
* frame.c (frame_unwind_address_in_block): Delete.
(get_frame_address_in_block): Do not use it. Check the type
of the next frame first.
(frame_cleanup_after_sniffer): Update comment.
* frame.h (frame_unwind_address_in_block): Delete prototype.
* hppa-tdep.c (hppa_find_unwind_entry_in_block): Update comment.
(get_frame_func): Do not use it.
* frame.h (frame_func_unwind): Delete prototype.
* hppa-tdep.c (hppa_frame_cache): Update comment.
* rs6000-tdep.c (rs6000_frame_cache): Update comment.
(mips_n32n64_push_dummy_call, mips_o64_return_value)
(mips_eabi_push_dummy_call): Update call to fp_register_arg_p.
(MIPS_FPU_TYPE): Add gdbarch as parameter and replace current_gdbarch.
(fp_register_arg_p, mips_dump_tdep, show_mipsfpu_command)
(mips_n32n64_fp_arg_chunk_p): Update caller.
(mips_n32n64_fp_arg_chunk_p): Add gdbarch as paramter.
(mips_n32n64_push_dummy_call): Update caller.
(MIPS_LAST_ARG_REGNUM): Add gdbarch as parameter and replace
current_gdbarch.
(mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call)
(mips_o32_push_dummy_call, mips_o64_push_dummy_call): Update caller.
(MIPS_LAST_FP_ARG_REGNUM): Add gdbarch as parameter and replace
current_gdbarch.
(mips_eabi_push_dummy_call, mips_o32_push_dummy_call)
(mips_o64_push_dummy_call): Update caller.
(MIPS_EABI): Add gdbarch as parameter and replace current_gdbarch.
(fp_register_arg_p, mips_dump_tdep): Update caller.
(set_reg_offset): Add gdbarch as parameter and replace current_gdbarch.
(mips16_scan_prologue, mips32_scan_prologue): Update caller.
(reset_saved_regs): Make static. Add gdbarch as parameter. Replace
current_gdbarch.
(mips32_scan_prologue): Update caller.
(heuristic_proc_start): Add gdbarch as parameter. Replace
current_gdbarch.
(mips_insn16_frame_cache, mips_insn32_frame_cache): Update caller.
* mipsnbsd-nat.c (mipsnbsd_fetch_inferior_registers)
(mipsnbsd_store_inferior_registers): Use get_regcache_arch to get at
the current architecture. Update call to getregs_supplies.
(getregs_supplies): Add gdbarch as parameter and replace
current_gdbarch.
* mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Use get_frame_arch to
get at the current architecture. Update call to NBSD_MIPS_JB_OFFSET and
NBSD_MIPS_JB_ELEMENT_SIZE.
(NBSD_MIPS_JB_ELEMENT_SIZE, NBSD_MIPS_JB_OFFSET): Add gdbarch and
replace current_gdbarch.
* remote-mips.c (mips_map_regno): Add gdbarch as parameter and replace
current_gdbarch.
(mips_fetch_registers, mips_store_registers): Update call
to mips_map_regno.
(mips_load): Use get_regcache_arch to get at the current_architecture
and replace current_gdbarch.
Rewrite continuations internals on top of cleanups and plug
continuation arguments leaks.
* defs.h (struct continuation): Make it opaque.
(add_continuation, add_intermediate_continuation): Drop the int
argument of the continuation hook argument. Add
continuation_free_args argument.
(do_all_continuations, do_all_intermediate_continuations): Drop
the error_p argument.
* utils.c (add_continuation): Drop the int argument of the
continuation hook argument. Add continuation_free_args argument.
Reimplement on top of cleanups.
(do_all_continuations): Drop error argument. Reimplement on top
of cleanups.
(discard_all_continuations): Reimplement on top of cleanups.
(add_intermediate_continuation): Drop the int argument of the
continuation hook argument. Add continuation_free_args argument.
Reimplement on top of cleanups.
(do_all_intermediate_continuations): Drop error argument.
Reimplement on top of cleanups.
(discard_all_intermediate_continuations): Reimplement on top of
cleanups.
* breakpoint.c (until_break_command_continuation): Drop error
argument. Add xfree as continuation argument deleter.
* inf-loop.c (inferior_event_handler): On error, discard all
continuations. Adjust to new do_all_intermediate_continuations
and do_all_continuations interfaces.
* infcmd.c (step_1_continuation): Drop error_p argument. Adjust.
Pass xfree as continuation argument deleter.
(finish_command_continuation): Drop error_p argument. Adjust.
(finish_command_continuation_free_arg): New.
(finish_command): Pass finish_command_continuation_free_arg as
continuation argument deleter. Adjust to new do_all_continuations
interfaces.
(attach_command_continuation): Drop error_p argument.
(attach_command_continuation_free_args): New.
(attach_command): Pass attach_command_continuation_free_args as
continuation argument deleter.
* interps.c (interp_set): Adjust to new do_all_continuations
interfaces.
* event-top.c (stdin_event_handler): In error, also discard the
intermediate continuations.
* top.c (execute_command): Remove unused arg1 and arg2 locals.
* breakpoint.c (struct until_break_command_continuation_args):
New.
(until_break_command_continuation): Take a void* instead of a
continuations_arg. Adjust.
(until_break_command): Adjust to use struct
until_break_command_continuation_args instead of struct
continuation_arg.
* infcmd.c (struct step_1_continuation_args): New.
(step_1_continuation): Take a void* instead of a
continuations_arg. Adjust to use struct step_1_continuation_args.
(step_once): Adjust to use struct step_1_continuation_args.
(struct finish_command_continuation_args): New.
(finish_command_continuation): Take a void* instead of a
continuations_arg. Adjust to use struct
finish_command_continuation_args.
(finish_command): Adjust to use struct
finish_command_continuation_args.
(struct attach_command_continuation_args): New.
(attach_command_continuation): Take a void* instead of a
continuations_arg. Adjust to use struct
attach_command_continuation_args.
(attach_command): Adjust to use struct
attach_command_continuation_args.
* defs.h (struct continuation_arg): Delete.
(struct continuation): Replace the struct continuation_arg*
parameter of continuation_hook by a void*. Replace "arg_list"
member by a new "args" member with void* type.
(add_continuation, add_intermediate_continuation): Replace struct
continuation_arg type usages by void* usages.
* utils.c (add_continuation, do_all_continuations)
(add_intermediate_continuation)
(do_all_intermediate_continuations): Replace struct
continuation_arg type usages by void* usages. Pass "args" instead
of "arg_list".
* infrun.c (struct thread_stepping_state): Delete sal member.
(init_thread_stepping_state): Add local sal. Use it instead of
tss->sal.
(handle_inferior_event): New local stop_pc_sal. Use it instead of
tss->sal.
(step_into_function): Add local stop_func_sal. Use it instead of
tss->sal.
* gdbthread.h (find_thread_id): Declare.
* thread.c (find_thread_id): Make non-static.
* mi/mi-main.c (mi_cmd_execute): Switch to the right
thread and frame, if necessary.
* mi/mi-parse.c (mi_parse): Handle --thread and --frame.
* mi/mi-parse.h (strcut mi_parse): New fields thread and frame.
* thread.c (enum thread_state): New.
(thread_state main_thread_running): Delete, in favor of...
(thread_state main_thread_state): ... this. Update throughout.
(clear_thread_inferior_resources): New, split from free_thread.
(free_thread): Call clear_thread_inferior_resources.
(init_thread_list): Set main thread to stopped state.
(add_thread_silent): Take care of PTID reuses.
(delete_thread): If deleting inferior_ptid or a thread with
refcount > 0, mark it as exited, but still keep it in the list.
Only notify of thread exits, if we haven't done so yet.
(iterate_over_threads): Make it safe to delete threads while
iterating over them.
(do_captured_list_thread_ids): Don't account for exited threads.
(thread_alive): Check for the THREAD_EXITED state, and don't set
ptid to -1 on exited threads.
(set_running): Update to account for extra possible states.
(is_thread_state): New.
(is_stopped, is_exited): New.
(is_running): Implement in terms of is_thread_state.
(any_running): Update.
(print_thread_info): Update. Account for exited threads. Don't
warn about missed frame restoring here, its done in the cleanup.
(switch_to_thread): Don't read from a thread that has gone.
(restore_current_thread): In non-stop mode, do a full context
switch.
(restore_selected_frame): Add a frame_level argument. Rewrite.
(struct current_thread_cleanup): Add selected_frame_level and
was_stopped members.
(do_restore_current_thread_cleanup): Check if thread was stopped
and still is, and if the target has registers, stack and memory
before restoring the selected frame. Don't delete the cleanup
argument here.
(restore_current_thread_cleanup_dtor): New.
(make_cleanup_restore_current_thread): Remove all arguments.
Rewrite.
(thread_apply_all_command): Update. Prune threads.
(thread_apply_command): Update.
(thread_command): Account for currently selected exited thread.
(do_captured_thread_select): Check for a running thread. Prune
threads.
(_initialize_thread): Make "info threads", "thread", "thread
apply", and "thread apply all" appliable without a selected thread.
* gdbthread.h (struct thread_info): Replace running_ by state_.
Add refcount.
(is_exited, is_stopped): Declare.
(make_cleanup_restore_current_thread): Remove all arguments.
* infrun.c: Include "event-top.h".
(fetch_inferior_event): In non-stop mode, restore selected thread
and frame after handling the event and running breakpoint
commands. Display GDB prompt if needed.
(normal_stop): In non-stop mode, don't print thread switching
notice.
* cli/cli-decode.c (set_cmd_no_selected_thread_ok)
(get_cmd_no_selected_thread_ok): New.
* cli/cli-decode.h (CMD_NO_SELECTED_THREAD_OK): New.
(set_cmd_no_selected_thread_ok, get_cmd_no_selected_thread_ok):
Declare.
* cli/cli-cmds.c: Set "pwd", "help", "info", "show" as
no-selected-thread ok.
* top.c (execute_command): Check for non no-selected-thread-ok
commands.
* linux-nat.c (struct saved_ptids, threads_to_delete)
(record_dead_thread, prune_lwps): Delete.
(exit_lwp): Unconditionally delete thread.
(linux_nat_resume): Remove prune_lwps call.
* infcmd.c (proceed_thread_callback): Check if !is_stopped instead
of is_running. Adjust to make_cleanup_restore_current_thread
interface change.
* mi/mi-main.c (mi_cmd_execute): Only allow a few commands if the
selected thread has exited.
* inf-loop.c (inferior_event_handler): Don't display the prompt
here.
* varobj.c (c_value_of_root): Update.
* defs.h (make_cleanup_dtor): Declare.
* utils.c (make_cleanup_dtor): New.
* Makefile.in (infrun.o): Depend on $(event_top_h).
* infcmd.c (proceed_thread_callback, do_context_switch_to): New.
(continue_command): Add "-a" option.
(interrupt_target_command): Add "-a" option.
(_initialize_infcmd): Add extend help of continue and interrupt
command to mention the new "-a" option. Mark "continue" async ok.
* linux-nat.c (linux_test_for_tracefork): Block events while we're
here.
(get_pending_status): Implement non-stop mode.
(linux_nat_detach): Stop threads before detaching.
(linux_nat_resume): In non-stop mode, always resume only a single
PTID.
(linux_handle_extended_wait): On a clone event, in non-stop mode,
add new lwp to GDB's thread table, and mark as running, executing
and stopped appropriately.
(linux_nat_filter_event): Don't assume there are other running
threads when a thread exits.
(linux_nat_wait): Mark the main thread as running and executing.
In non-stop mode, don't stop all lwps.
(linux_nat_kill): Stop lwps before killing them.
(linux_nat_thread_alive): Use signal 0 to detect if a thread is
alive.
(send_sigint_callback): New.
(linux_nat_stop): New.
(linux_nat_add_target): Set to_stop to linux_nat_stop.
* linux-nat.h (thread_db_attach_lwp): Declare.
* linux-thread-db.c (thread_get_info_callback): Check for new
threads if we have none.
(thread_from_lwp, enable_thread_event): Set proc_handle.pid to the
stopped lwp. Check for new threads if we have none.
(thread_db_attach_lwp): New.
(thread_db_init): Set proc_handle.pid to inferior_ptid.
(check_event): Set proc_handle.pid to the stopped lwp.
(thread_db_find_new_threads): Set proc_handle.pid to any stopped
lwp available, bail out if there is none.
* linux-fork.c (linux_fork_killall): Use SIGKILL instead of
PTRACE_KILL.
* 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).
* infrun.c (proceed): Clear the stepping state, set
previous_inferior_ptid and clear infwait state.
(wait_for_inferior): Don't clear the stepping state, set
previous_inferior_ptid, or clear the infwait state here.
(fetch_inferior_event): Don't clear the stepping state, set
previous_inferior_ptid, or clear the infwait state here. Don't
condition on wait_for_more.
* infrun.c (currently_stepping): Take a struct
thread_stepping_state instead of an execution_control_state.
(struct thread_stepping_state): New, split from
execution_control_state.
(gtss, tss): New globals.
(proceed): Clear the stepping state, set previous_inferior_ptid
and clear infwait state.
(init_wait_for_inferior): Clear the stepping state,
previous_inferior_ptid and infwait state.
(waiton_ptid, infwait_state): New, split from
execution_control_state.
(struct execution_control_state): Members that persist through
events moved out to either struct thred_stepping_state or made
global. Deleted unneeded wp, saved_inferior_ptid, tmpstatus.
(wait_for_inferior, fetch_inferior_event): Use local
execution_control_state. Update to execution_control_state split.
(init_execution_control_state): Adjust.
(init_thread_stepping_state): New, extracted from
init_execution_control_state.
(context_switch): Take a ptid instead of an
execution_control_state.
(context_switch_to): Adjust.
(adjust_pc_after_break): Adjust.
(init_infwait_state): New.
(handle_inferior_event): Adjust.
* gdbthread.h: Remove unneeded forward declarations.
Include "inferior.h".
(struct thread_info): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi and stop_signal members.
(save_infrun_state): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat parameters.
(load_infrun_state): Add continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat parameters.
* thread.c (load_infrun_state): In non-stop mode, load
continuations, intermediate_continuations, proceed_to_finish,
step_over_calls, stop_step, step_multi and stop_signal.
(save_infrun_state): Store continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(save_infrun_state): Store continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(free_thread): Clear The thread's stop_bpstat.
* inferior.h (context_switch_to): Declare.
* infrun.c (ecss): New global.
(context_switch): Context switch continuations,
intermediate_continuations, proceed_to_finish, step_over_calls,
stop_step, step_multi, stop_signal and stop_bpstat.
(wait_for_inferior): Use global ecss.
(async_ecss, async_ecs): Delete.
(fetch_inferior_event): Use global ecss.
(context_switch_to): New.
* top.c (execute_command): In non-stop, only check if the current
thread is running, in all-stop, check if there's any thread
running.
* breakpoint.c (bpstat_remove_breakpoint): New.
(bpstat_remove_breakpoint_callback): New.
(delete_breakpoint): Clear the stop_bpstats of all threads.
* mi/mi-main.c (mi_cmd_execute): In non-stop, only check if the
current thread is running, in all-stop, check if there's any
thread running.
* Makefile.in (gdbthread_h): Depend on $(inferior_h).
* target.h (struct target_waitstatus): Store related_pid as a ptid.
(inferior_has_forked, inferior_has_vforked, inferior_has_execd):
Take a ptid_t.
* breakpoint.h (struct breakpoint): Change forked_inferior_pid
type to ptid.
* breakpoint.c (print_it_typical, bpstat_check_location)
(print_one_breakpoint_location, set_raw_breakpoint_without_location)
(create_fork_vfork_event_catchpoint): Adjust.
* infrun.c (fork_event): Change parent_pid and child_pid types to
ptid.
(follow_exec, inferior_has_forked, inferior_has_vforked)
(inferior_has_execd): Take a ptid_t and don't trim it.
* linux-thread-db.c (thread_db_wait): Don't trim the returned ptid.
* linux-nat.c (linux_child_follow_fork): Adjust.
* inf-ptrace.c (inf_ptrace_wait): Adjust.
* inf-ttrace.c (inf_ttrace_wait): Adjust.
* win32-nat.c (get_win32_debug_event): Don't set related_pid.
* 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).
2008-07-09 Pedro Alves <pedro@codesourcery.com>
* symfile.c (load_command): Reopen the exec file and reread
symbols before anything else.
gdb/testsuite/
2008-07-09 Pedro Alves <pedro@codesourcery.com>
* gdb.base/chng-syms.exp: Don't expect "No symbol ...".
(remote_sim_ptid): New global.
(gdbsim_create_inferior): Silently add the main task to GDB's
thread list.
(gdbsim_close, gdbsim_mourn_inferior): Silently delete the main
task from GDB's thread list.
(gdbsim_resume): Adjust to use remote_sim_ptid.
(gdbsim_thread_alive, gdbsim_pid_to_str): New.
(init_gdbsim_ops): Register gdbsim_thread_alive and
gdbsim_pid_to_str.
(_initialize_remote_sim): Initialize remote_sim_ptid.
* Makefile.in (remote-sim.o): Depend on $(gdbthread_h).
* breakpoint.c (bpstat_copy): Call RELEASE_VALUE on the new OLD_VAL.
gdb/testsuite/
* gdb.base/value-double-free.exp, gdb.base/value-double-free.c: New.
-target-download and -target-select via CLI, so that
the quoting rules are the same as they were (unfortunately)
in all prior gdb releases.
* mi/mi-cmds.h (mi_cmd_exec_run, mi_cmd_exec_until)
(mi_cmd_target_download, mi_cmd_target_select): Remove.
* mi/mi-main.c (mi_cmd_exec_run, mi_cmd_exec_until)
(mi_cmd_target_download, mi_cmd_target_select): Remove.
(mi_cmd_execute): Set current_token even for commands
routed via CLI.
(captured_mi_execute_command_args): Remove.
(captured_mi_execute_command): Cast the closure to mi_parse
pointer, not to captured_mi_execute_command_args, and don't
set the action field thereof.
(mi_execute_command): Pass struct mi_parse, not
captured_mi_execute_command_args to captured_mi_execute_command.
(mi_execute_command): Remove (dead) code for suppressing
printing prompt.
(i386_push_dummy_call): Determine stack space required for
arguments going forwards allowing for 16-byte alignment, then push
arguments going forwards.
* monitor.c (monitor_open): Include "gdbthread.h". Clear thread
list here.
* remote.c (record_currthread): Upgrade the main thread and its
entry in the thread list if this is the first time we hear about
threads.
(remote_thread_alive): Consider magic_null_ptid or a ptid without
a tid member always alive.
(remote_find_new_threads): Don't update the main thread here.
(remote_start_remote): Clear thread list here. Always add the
main thread.
(extended_remote_attach_1): Add the main thread here.
(extended_remote_mourn_1): Re-add the main thread here.
(extended_remote_create_inferior_1): Add a main thread.
* Makefile.in (monitor.o): Depend on $(gdbthread_h).
* remote.c (magic_null_ptid, not_sent_ptid, any_thread_ptid): New
globals.
(general_thread, continue_thread): Change type to ptid_t.
(record_currthread): Take a ptid_t parameter instead of an
integer.
(MAGIC_NULL_PID): Delete.
(set_thread): Take a ptid_t parameter and adjust.
(set_general_thread, set_continue_thread): New.
(remote_thread_alive, remote_newthread_step)
(remote_current_thread, remote_find_new_threads)
(remote_threads_info, remote_start_remote, remote_vcont_resume)
(remote_resume_1, remote_wait, extended_remote_create_inferior_1)
(threadalive_test, remote_pid_to_str)
(remote_get_thread_local_address): Adjust.
(_initialize_remote): Initialize magic_null_ptid, not_sent_ptid
and any_thread_ptid.
(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.
decimal floating-point values in GPRs for soft-float.
(do_ppc_sysv_return_value): Handle returning decimal
floating-point values in GPRs for soft-float.
* c-exp.y (parse_number): Move the S and SAVED_CHAR initialization
after the DECFLOAT detection to fix a memory leak. Remove the
redundant NUM initialization. Protect the DECFLOAT detection memory
access before the P block. Restore the P memory content for the
DECFLOAT detection.
* mi/mi-interp.c (mi_cmd_interpreter_exec): Do no print
^running here.
(mi_on_resume): Print ^running if not previously output.
* mi/mi-main.c (running_result_record_printed): New.
(captured_mi_execute_command): Reset
running_result_record_printed. Use running_result_record_printed
to decide if we should skip ^done.
(mi_execute_async_cli_command): Don't print ^running here.
* mi/mi-main.h (current_token, running_result_record_printed):
Declare.
* infrun.c (finish_command): Don't pass cleanup
to continuation.
(finish_command_continuation): Don't grab cleanup from
the passed data, as we don't use, and cannot, use it anyway.
* defs.h (make_cleanup_restore_integer): New declaration.
(struct cleanup): New field free_arg.
(make_my_cleanup_2): New.
* utils.c (restore_integer_closure, restore_integer)
(make_cleanup_restore_integer): New.
(make_my_cleanup): Initialize the free_arg field and
renamed to make_my_cleanup_2.
(do_my_cleanups): Call free_arg.
(discard_cleanups): Call free_arg.
* breakpoint.c (restore_always_inserted_mode): Remove.
(update_breakpoints_after_exec): Use make_cleanup_restore_integer.
* completer.c (complete_line): Don't special-case
expression_completer.
(expression_completer): Only pass last word to
location_completer.
* c-exp.y (yylex): Check 'token', not 'operator'.
gdb/testsuite
* gdb.base/completion.exp: New tests for field name completion
with spaces, and field name completion with '->'.
