parameter. If it is NULL, don't call error.
(find_default_can_async_p, find_default_is_async_p): Pass NULL as
`do_mesg' parameter to find_default_run_target. If no target was
found, return 0.
(N64_SIGCONTEXT_LO, N64_SIGCONTEXT_PC, N64_SIGCONTEXT_FPCSR): Update.
(N64_SIGCONTEXT_FIR, N64_SIGCONTEXT_CAUSE, N64_SIGCONTEXT_BADVADDR):
Delete.
(mips_linux_n32n64_sigframe_init): Do not record cause or badvaddr.
* features/Makefile (%.dat): Set xmltarget to the base filename
of the XML source, without subdirectory.
* regformats/rs6000/powerpc-32.dat: Regenerate.
* regformats/rs6000/powerpc-64.dat: Regenerate.
* regformats/rs6000/powerpc-e500.dat: Regenerate.
gdbserver/ChangeLog:
* server.c (get_features_xml): Fix inverted condition.
(handle_query): Always support qXfer:feature:read.
floating, and clarify the meaning.
(varobj_create, varobj_update, new_root_variable): Adjust.
(value_of_root): Don't use type_changed as in variable,
adjust comment.
(c_value_of_root): Adjust.
gdb's thread list.
(linux_nat_wait): Add main lwp to gdb's thread list.
* linux-thread-db.c (find_new_threads_callback): Also attach to
already listed threads which thread_db didn't know about yet.
* linux-nat.c (drain_queued_events): Fix comment typo.
(linux_nat_attach): In async mode, don't rely on storing a pending
status. Instead place the wait status on the pipe.
(linux_nat_resume): Remove unreacheable shortcut code in async
mode.
(stop_wait_callback): In async mode, don't store pending status.
Instead, cancel breakpoints or resend the signal appropriatelly.
(cancel_breakpoint): New, refactored from
cancel_breakpoints_callback.
(cancel_breakpoints_callback): Call cancel_breakpoint.
(pipe_to_local_event_queue): Remove special token processing.
(linux_nat_wait): Issue an internal error if a pending status is
found in async mode.
(varobj_get_thread_id, check_scope): New functions.
(c_value_of_root): Use check_scope. Switch to the
proper thread if necessary.
* varobj.h (varobj_get_thread_id): New extern.
* mi/mi-cmd-var.c (print_varobj): Add thread-id field.
* target.h (struct target_ops): Delete to_async_mask_value and add
to_async_mask.
(target_is_async_p, target_async): Formatting.
(target_async_mask_value): Delete.
(target_async_mask): Delete function declaration, and add new
target macro with the same name.
* target.c (update_current_target): Replace to_async_mask_value by
to_async_mask. Default to_async_mask to return_one.
(target_async_mask): Delete.
(find_default_can_async_p, find_default_is_async_p): New.
(init_dummy_target): register find_default_can_async_p and
find_default_is_async_p on the dummy target.
* linux-nat.c: Include inf-loop.h, event-loop.h and event-top.h.
(debug_linux_nat_async): New global.
(show_debug_linux_nat_async): New function.
(linux_nat_async_enabled, linux_nat_async_mask_value)
(linux_nat_event_pipe, linux_nat_num_queued_events)
(linux_nat_async_events_enabled): New globals.
(struct waitpid_result): New struct.
(waitpid_queue): New global.
(queued_waitpid, push_waitpid, drain_queued_events): New.
(my_waitpid): Call queued_waitpid.
(linux_child_follow_fork): Disable async events during the call.
(blocked_mask): Delete.
(sync_sigchld_action, async_sigchld_action): New globals.
(lin_lwp_attach_lwp): In sync mode, don't reblock SIGCHLD. In
async mode, block events during the call.
(linux_nat_create_inferior): New.
(linux_nat_attach): In sync mode, restore the mask states. In
async mode, wake the event loop immediatelly.
(detach_callback): Drain all queued events of the lwp we're
detaching from.
(linux_nat_detach): Block async mode, and drain events of the main
process.
(linux_nat_resume): If in async mode, mask async events during the
call. If short circuiting, force event loop to wake up. If
resuming, set target_executing, and register target events in the
event loop.
(pipe_to_local_event_queue, local_event_queue_to_pipe): New.
(linux_nat_wait): In async mode, block events during the call.
Only enable/disable passing SIGINT to the inferior in sync mode.
Get events from local waitpid queue. If no interesting events was
found, return to events loop. Reregister target events in the
event loop on exit. In sync mode, no need to reblock SIGCHLD.
(linux_nat_kill): Disable events on entry.
(linux_nat_mourn_inferior): In sync mode, don't restore the masks
here. Detach async mode from the event loop if there are no more
forks available, otherwise leave it on.
(sigchld_handler): Assure this is called only in sync mode.
(linux_async_permitted, linux_async_permitted_1): New globals.
(set_maintenance_linux_async_permitted)
(show_maintenance_linux_async_permitted): New functions.
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_async_mask): New.
(linux_nat_event_pipe_pop, linux_nat_event_pipe_push): New.
(get_pending_events, async_sigchld_handler): New.
(linux_nat_async_events): New.
(async_terminal_is_ours): New global.
(linux_nat_terminal_inferior, linux_nat_terminal_ours): New.
(async_client_callback, async_client_context): New.
(linux_nat_async_file_handler, linux_nat_async)
(linux_nat_disable_async, linux_nat_enable_async): New.
(linux_nat_add_target): Register linux_nat_create_inferior,
linux_nat_can_async_p, linux_nat_is_async_p, linux_nat_async,
linux_nat_async_mask, linux_nat_terminal_inferior and
linux_nat_terminal_ours.
(_initialize_linux_nat): Remove local action variable, and update
code that used it to use sync_sigchld_action. Add new
"lin-lwp-async" debug set/show command. Put the "lin-lwp" debug
set/show command in the maintenance class. Add new "linux-async"
maintenance set/show command. Block SIGCHLD by default. Setup
async_sichld_action, and sync_sigchld_action. Install the default
async mode.
(lin_thread_get_thread_signals): Use a local sigset_t for blocking
the cancel signals.
* linux-thread-db.c (re_check_for_thread_db): New.
(clear_lwpid_callback): Handle TARGET_WAITKIND_IGNORE.
(thread_db_can_async_p, thread_db_is_async_p, thread_db_async)
(thread_db_async_mask): New.
(init_thread_db_ops): Register thread_db_can_async_p,
thread_db_is_async_p, thread_db_async and thread_db_async_mask.
* remote.c (remote_async_mask_value): New.
(remote_return_zero): New.
(init_remote_ops): Register remote_return_zero as callbacks of
to_can_async_p and to_is_async_p.
(remote_can_async_p, remote_is_async_p, remote_async): Update to
use remote_async_mask_value.
(remote_async_mask): New.
(init_remote_async_ops): Remove to_async_mask_value setting and
register remote_async_mask as to_async_mask callback in
remote_async_ops.
* Makefile.in (linux-nat.o): Update.
gdb/doc/
* gdb.texinfo (Debugging Output): Document
"set/show debug lin-lwp-async".
(Maintenance Commands): Document "maint set/show linux-async".
* gdbthread.h (add_thread_with_info): New.
* linux-thread-db.c: Add some documentation.
(GET_LWP, GET_PID, GET_THREAD, is_lwp, is_thread, BUILD_LWP): Delete.
(struct private_thread_info): Remove th_valid and ti_valid.
Replace ti with tid.
(thread_get_info_callback): Do not add TID to the new ptid. Do
not cache th or ti.
(thread_db_map_id2thr, lwp_from_thread): Delete functions.
(thread_from_lwp): Assert that the LWP is set. Do not add TID to the
new PTID.
(attach_thread): Handle an already-existing thread. Use
add_thread_with_info. Cache the th and tid.
(detach_thread): Verify that private was set. Remove verbose
argument and printing. Update caller.
(thread_db_detach): Do not adjust inferior_ptid.
(clear_lwpid_callback, thread_db_resume, thread_db_kill): Delete.
(check_event, find_new_threads_callback): Do not add TID to the new PTID.
(thread_db_wait): Do not use lwp_from_thread.
(thread_db_pid_to_str): Use the cached TID.
(thread_db_extra_thread_info): Check that private is set.
(same_ptid_callback): Delete.
(thread_db_get_thread_local_address): Do not use it or check
is_thread. Check that private is set. Assume that the thread
handle is already cached.
(init_thread_db_ops): Remove to_resume and to_kill.
* thread.c (add_thread_with_info): New.
(add_thread): Use it.
* linux-nat.c (find_thread_from_lwp): Delete.
(exit_lwp): Do not use it. Check print_thread_events. Print before
deleting the thread.
(GET_PID, GET_LWP, BUILD_LWP, is_lwp): Move to...
* linux-nat.h (GET_PID, GET_LWP, BUILD_LWP, is_lwp): ...here.
* inf-ttrace.c (inf_ttrace_wait): Use print_thread_events and
printf_unfiltered for thread exits.
* procfs.c (procfs_wait): Likewise.
2008-03-21 Pedro Alves <pedro@codesourcery.com>
* gdb.threads/fork-child-threads.exp: Test next over fork.
* symtab.c (rbreak_command): Quote symbol name before passing
it to break_command.
* gdb.base/break.exp (rbreak junk): New test for rbreak
"Junk at end of arguments" issue.
Use value_must_coerce_to_target.
* infcall.c (value_arg_coerce): Call value_coerce_to_target.
* valops.c (value_assign): Call value_coerce_to_target when
assigning to anything but internalvars. Leave GDB-side arrays
as arrays when assigning to internalvars.
(value_must_coerce_to_target, value_coerce_to_target): New.
(value_coerce_array, value_addr): Call value_coerce_to_target.
(value_array): Create the array in GDB's memory instead of
the inferior's.
* value.h (value_must_coerce_to_target, value_coerce_to_target):
Declare.
* gdb.texinfo (Expressions): Update description of malloced arrays.
* gdb.base/printcmds.exp (test_print_array_constants): Do not expect
*& to work on created array elements.
(Top level): Test print $pc with a file. Test string operations
without a target.
* gdb.base/ptype.exp: Do not expect *& to work on created array
elements.
* fork-child.c (startup_inferior): Do not set
inferior_ignoring_leading_exec_events.
* inf-child.c (inf_child_reported_exec_events_per_exec_call): Remove.
(inf_child_target): Do not set to_reported_exec_events_per_exec_call.
* infrun.c (inferior_ignoring_leading_exec_events): Remove.
(handle_inferior_event): Remove code for ignoring leading exec
events.
* target.c (update_current_target): Do not inherit, or default,
to_reported_exec_events_per_exec_call.
(debug_to_reported_exec_events_per_exec_call): Remove.
(setup_target_debug): Do not set to_reported_exec_events_per_exec_call.
* target.h (target_reported_exec_events_per_exec_call): Remove.
(struct target): Remove the to_reported_exec_events_per_exec_call
field.
* gdbthread.h (print_thread_info): Declare.
* thread.c (print_thread_info): New, extracted
from info_threads_command and adjusted to
work for CLI and MI.
(info_threads_command): Use print_thread_info.
* Makefile.in: Update dependencies.
* mi/mi-cmds.c (mi_cmds): Specify a handler
for -thread-info.
* mi/mi-cmds.h (mi_cmd_thread_info): Declare.
* mi/mi-main.c (mi_cmd_thread_info): New.
(mi_cmd_list_features): Include 'thread-info'.
of "library". Add "section" element and describe its attributes.
* solib-target.c (struct lm_info): Add section_bases member.
(library_list_start_segment): Error out if seen a section element.
(library_list_start_section): New.
(library_list_end_library): New.
(solib_target_free_library_list): Free section_bases.
(section_attributes): New.
(library_children): Make "segment" optional. Add "section" child.
(library_list_children): Register library_list_end_library.
(solib_target_relocate_section_addresses): Handle section bases.
* NEWS: Mention new qXfer:libraries:read section offsets support.
doc/
* gdb.texinfo (Library List Format): Update to mention the
possibility to pass section addresses instead of segment
addresses.
* Makefile.in (infcmd.o, inf-loop.o): Update dependencies.
* breakpoint.c (bpstat_do_actions): In async mode,
don't jump to top expecting stop_bpstat to be already
updated.
* event-loop.c (start_event_loop): Call async_enable_stdin
on exception.
* event-top.c (async_enable_stdin): Do nothing if sync_execution
is not set.
(command_handler): Do not setup continuation here.
(command_line_handler_continuation): Move to...
* top.c (command_line_handler_continuation): ... here.
(execute_command): In async mode, register continuation.
Don't check frame's language in running in async mode.
* exceptions.c (throw_exception): Don't do exec_error_cleanups.
* inf-loop.c (complete_execution): Inline into...
(inferior_event_handler): ... here. Clear target_executing before
doing any cleanups. Don't try to show prompt if the target was
resumed.
* infcmd.c (signal_command): Add support for async mode.
(finish_command): Only add continuation if the target was
successfully resumed.
* remote.c (init_async_opts): Register to_get_thread_local_address
handler.
* mi/mi-interp.c (mi_cmd_interpreter_exec): Don't mess
with sync_execution.
* tui/tui-interp.c (tui_command_loop): Call async_enable_stdin
on exception.
* corefile.c (reopen_exec_file): Use exec_bfd_mtime.
* exec.c (exec_bfd_mtime): Define.
(exec_close): Clear it.
(exec_file_attach): Set it.
* gdbcore.h (exec_bfd_mtime): Declare.
* source.c (find_source_lines): Do not use bfd_get_mtime.
* remote.c (deprecated_target_resume_hook)
(deprecated_target_wait_loop_hook): Remove.
(remote_resume): Do not call deprecated_target_resume_hook.
(remote_wait): Do not call deprecated_target_wait_loop_hook.
(remote_async_wait): Likewise.
2008-03-14 Pedro Alves <pedro@codesourcery.com>
* inf-loop.c (inferior_event_handler): Don't include remote.h.
Call target_stop in the INF_QUIT_REQ case.
* Makefile.in (inf-loop.o): Update.
to get at the current architecture and at the target specific vector.
Add target specific vector to I387_FISEG_REGNUM and I387_FOP_REGNUM and
remove define of I387_ST0_REGNUM.
* amd64-tdep.c (I387_ST0_REGNUM): Remove define.
(amd64_supply_fxsave, amd64_collect_fxsave): Use get_regcache_arch to
get at the current architecture
(I387_FISEG_REGNUM, I387_FOSEG_REGNUM): Add target specific vector as
parameter.
* i386-tdep.c: Remove various define's and undef's of I387_ST0_REGNUM,
I387_NUM_XMM_REGS and I387_MM0_REGNUM.
(I387_NUM_XMM_REGS, I387_XMM0_REGNUM, I387_MXCSR_REGNUM,
I387_ST0_REGNUM, I387_FCTRL_REGNUM, I387_MM0_REGNUM,
(I387_FSTAT_REGNUM): Add target specific vector as parameter.
(i386_register_name, i386_dbx_reg_to_regnum): Use gdbarch_tdep to get
at the target specific vector.
(i386_get_longjmp_target): Use get_frame_arch to get at the current
architecture. Use gdbarch_tdep to get at the target specific vector.
(i386_fp_regnum_p, i386_fpc_regnum_p): Add gdbarch as parameter and
update caller. Use gdbarch_tdep to get at the target specific vector.
(i386_register_to_value: Use get_frame_arch to get at the current
architecture.
* i386-tdep.h (i386_fp_regnum_p, i386_fpc_regnum_p): Add gdbarch as
parameter.
* i387-tdep.c (I387_FCTRL_REGNUM, I387_FSTAT_REGNUM, I387_FTAG_REGNUM,
I387_FISEG_REGNUM, I387_FIOFF_REGNUM, I387_FOSEG_REGNUM
I387_FOOFF_REGNUM, I387_FOP_REGNUM, I387_ST0_REGNUM, FSAVE_ADDR,
FXSAVE_ADDR, I387_XMM0_REGNUM): Add target specific vector as parameter.
(I387_ST0_REGNUM, I387_NUM_XMM_REGS): Remove various define's and
undef's.
(i387_convert_register_p, i387_register_to_value,
i387_value_to_register): Update call for i386_fp_regnum_p.
* i387-tdep.h: Remove comment.
(I387_ST0_REGNUM, I387_NUM_XMM_REGS, I387_MM0_REGNUM): Add define.
(I387_FCTRL_REGNUM, I387_FSTAT_REGNUM, I387_FTAG_REGNUM,
I387_FISEG_REGNUM, I387_FIOFF_REGNUM, I387_FOSEG_REGNUM,
I387_FOOFF_REGNUM, I387_FOP_REGNUM, I387_XMM0_REGNUM,
I387_MXCSR_REGNUM): Add target specific vector as parameter.
* NEWS: Document "set exec-wrapper" and the gdbserver --wrapper
argument. Gather all gdbserver features together.
* fork-child.c (exec_wrapper): New variable.
(fork_inferior): Use it.
(startup_inferior): Skip an extra trap if using "set exec-wrapper".
(unset_exec_wrapper_command, _initialize_fork_child): New.
* gdb.texinfo (Starting): Document "set exec-wrapper".
(Server): Document gdbserver --wrapper.
* server.c (wrapper_argv): New.
(start_inferior): Handle wrapper_argv. If set, expect an extra
trap.
(gdbserver_usage): Document --wrapper.
(main): Parse --wrapper.
from svr4_same and expanded to handle the sparc64 case.
(svr4_same): Move up and reimplement using svr4_same_1.
(enable_break): Use svr4_same_1 to do shared library name comparisons.
features/rs6000/powerpc-601.xml, features/rs6000/rs6000.xml:
Change the type of the lr register to code_ptr.
* features/rs6000/powerpc-32.c, features/rs6000/powerpc-403.c,
features/rs6000/powerpc-403gc.c, features/rs6000/powerpc-505.c,
features/rs6000/powerpc-601.c, features/rs6000/powerpc-602.c,
features/rs6000/powerpc-603.c, features/rs6000/powerpc-604.c,
features/rs6000/powerpc-64.c, features/rs6000/powerpc-7400.c,
features/rs6000/powerpc-750.c, features/rs6000/powerpc-860.c,
features/rs6000/powerpc-e500.c, features/rs6000/rs6000.c: Regenerate.
(update_watchpoint): Set and clear val_valid. Use
fetch_watchpoint_value. Handle unreadable values on the
value chain. Correct check for user-requested array watchpoints.
(breakpoint_init_inferior): Clear val_valid.
(watchpoint_value_print): New function.
(print_it_typical): Use it. Do not free or clear old_val. Print
watchpoints even if old_val == NULL.
(watchpoint_check): Use fetch_watchpoint_value. Check for values
becoming readable or unreadable.
(watch_command_1): Use fetch_watchpoint_value. Set val_valid.
(do_enable_watchpoint): Likewise.
* breakpoint.h (struct breakpoint): Update comment for val. Add
val_valid.
* NEWS: Mention watchpoints on inaccessible memory.
* gdb.base/watchpoint.c (global_ptr, func4): New.
(main): Call func4.
* gdb.base/watchpoint.exp: Call test_inaccessible_watchpoint.
(test_inaccessible_watchpoint): New.
* gdb.texinfo (Set Watchpoints): Mention watchpoints on
unreadable memory. Delete obsolete SPARClite reference.
* regformats/reg-ppc.dat: Rename "ps" to "msr".
* regformats/reg-ppc64.dat: Likewise.
gdbserver/ChangeLog:
* configure.srv [powerpc64-*-linux*]: Add all files mentioned for
powerpc-*-linux* to srv_regobj and reg_xmlfiles.
* linux-ppc-low.c (ppc_get_pc): Support bi-arch operation.
(ppc_set_pc): Likewise.
(ppc_arch_setup): New function.
(ppc_fill_gregset): Call ppc_collect_ptrace_register instead
of collect_register.
(the_low_target): Use ppc_arch_setup as arch_setup initializer.
r_brk_offset.
(mipsnbsd_lp64_fetch_link_map_offsets): Likewise.
* solib-svr4.c (solib_svr4_r_brk): New.
(open_symbol_file_object, svr4_current_sos): Always check the
debug base.
(svr4_fetch_objfile_link_map): Do not set debug_base.
(enable_break): Use r_brk if it is set.
(svr4_ilp32_fetch_link_map_offsets): Set r_brk_offset.
(svr4_lp64_fetch_link_map_offsets): Likewise.
* solib-svr4.h (struct link_map_offsets): Add r_brk_offset.
Mark Kettenis <kettenis@gnu.org>
* alpha-tdep.c (alpha_heuristic_unwind_cache): Replace saved_regs by
trad_frame_saved_reg.
(trad-frame.h): New include.
(alpha_heuristic_frame_unwind_cache): Use trad_frame_alloc_saved_regs
instead of frame_obstack_zalloc.
(alpha_heuristic_frame_prev_register): Use trad_frame_get_prev_register.
* Makefile.in (alpha-tdep.o): Add dependency to trad_frame_h.
