2009-31-10 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
* breakpoint.c (catch_syscall_split_args): Remove unecessary warning
displayed when the user provided a syscall name and there is no
XML support.
* xml-syscall.c: Renamed `_sysinfo' to `sysinfo'.
(set_xml_syscall_file_name): Remove syscall_warn_user.
(xml_init_syscalls_info): Remove warning.
(init_sysinfo): Update warnings.
gdb/testsuite/ChangeLog:
2009-31-10 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>
* gdb.base/catch-syscall.exp: Adapt the testcase in order to accept
the modified warnings for catch syscall. Verify if GDB was compiled
with support for lib expat, and choose which tests to run depending
on this.
PR gdb/10757
* thread-db.c (attach_thread): New function.
(maybe_attach_thread): Return success/failure.
(find_new_threads_callback): Adjust.
(thread_db_find_new_threads): Loop until no new threads.
* remote.c (interrupt_sequence_control_c)
(interrupt_sequence_break, interrupt_sequence_break_g)
(interrupt_sequence_modes): New constants.
(interrupt_sequence_mode, interrupt_on_connect): New variable.
(show_interrupt_sequence): New function.
(set_remotebreak, show_remotebreak): New function.
(send_interrupt_sequence): New function.
(remote_start_remote): Call send_interrupt_sequence if
interrupt_on_connect is true.
(remote_stop_as): Call send_interrupt_sequence.
(_initialize_remote): Add interrupt-sequence and interrupt-on-connect,
modify remotebreak to call set_remotebreak and show_remotebreak.
* NEWS: Add entry for "set/show remote interrupt-sequence" and
"set/show remote interrupt-on-connect". Also mention that
"set/show remotebreak" is now deprecated.
gdb/doc/:
* gdb.texinfo (Remote Configuration): Add "set/show remote
interrupt-sequence" and "set/show remote interrupt-on-connect" command.
PR gdb/10757
* linux-thread-db.c (attach_thread): Return success/failure
indicator.
(thread_db_find_new_threads_silently): Retry until no new threads.
(struct callback_data): New.
(find_new_threads_callback): Count new threads, stop iteration
on error.
(find_new_threads_once): New function.
(thread_db_find_new_threads_2): Rename from
thread_db_find_new_threads_1 and adjust.
(thread_db_find_new_threads_1): New function.
Performance optimize large bp_location count.
* breakpoint.c (ALL_BP_LOCATIONS_SAFE): Remove.
(ALL_BP_LOCATIONS): New parameter BP_TMP. Use now bp_location and
bp_location_count.
(bp_location_chain): Remove variable.
(bp_location, bp_location_count)
(bp_location_placed_address_before_address_max)
(bp_location_shadow_len_after_address_max): New variables.
(moribund_locations, update_watchpoint): Update the bp_location
variable name.
(breakpoint_restore_shadows): Extend the comment. Move the variable
b to local blocks. Move the variables bp_addr, bp_size and bptoffset
to a local block. New variables bc_l, bc_r and bc. New binary search
for the left range boundary. New break on reaching the right range
boundary. Move shadow existence conditionals to ...
(bp_location_has_shadow): ... a new function.
(insert_breakpoint_locations): Replace the temp variable by bp_tmp.
Use now ALL_BP_LOCATIONS instead of ALL_BP_LOCATIONS_SAFE.
(remove_breakpoints, remove_hw_watchpoints, reattach_breakpoints)
(detach_breakpoints): New variable bp_tmp. Update the ALL_BP_LOCATIONS
calling convention.
(update_breakpoints_after_exec): New variable bplocp_tmp. Update the
ALL_BP_LOCATIONS calling convention.
(breakpoint_here_p, software_breakpoint_inserted_here_p)
(breakpoint_thread_match): New variable bptp_tmp. Drop the const
attribute of bpt. Update the ALL_BP_LOCATIONS calling convention.
(regular_breakpoint_inserted_here_p): Likewise. Update the bp_location
variable name.
(mark_breakpoints_out, breakpoint_init_inferior): New variable
bptp_tmp. Update the ALL_BP_LOCATIONS calling convention.
(bpstat_stop_status): New variables blp_tmp and update_locations. Drop
the const attribute of bl. Update the ALL_BP_LOCATIONS calling
convention. Protect HIT_COUNT increment by an ENABLE_STATE check.
Delay the update_global_location_list call using update_locations.
(set_default_breakpoint): Drop the check_duplicates name from comment.
(disable_breakpoints_in_shlibs, disable_breakpoints_in_unloaded_shlib):
New variable locp_tmp. Update the ALL_BP_LOCATIONS calling convention.
(bp_location_compare, bp_location_compare_for_qsort)
(bp_location_target_extensions_update): New functions.
(check_duplicates, check_duplicates_for): Remove, moving their code ...
(update_global_location_list): ... into this existing function. Remove
variables next, loc2, old_locations, ret and ix. New variables locp,
loc_first, old_location, old_locp and old_location_count. Stop using
global_next, create now the array bp_location, sort it by
bp_location_compare_for_qsort and call
bp_location_target_extensions_update. Change quadratic iteration by
loc2 into an in-sync scanning by locp and loc2p. Rename former loc
usage as old_loc.
(do_vec_free): Remove.
(breakpoint_program_space_exit): Update the ALL_BP_LOCATIONS calling
convention.
(remove_breakpoints_pid): New variable b_tmp. Update the
ALL_BP_LOCATIONS calling convention.
* breakpoint.h (struct bp_location <global_next>): Remove.
* record.c (top level): Don't include byteswap.h.
(netorder64): Use store_unsigned_integer instead of bswap_64.
(netorder32): Use store_unsigned_integer instead of bswap_32.
(netorder16): Use store_unsigned_integer instead of bswap_16.
Michael Snyder <msnyder@msnyder-server.eng.vmware.com>
* record.c (RECORD_FILE_MAGIC): New constant.
(record_arch_list_cleanups): Renamed from record_message_cleanups.
(bfdcore_read): New function.
(netorder64): New function.
(netorder32): New function.
(netorder16): New function.
(record_restore): New function. Restore a saved record log.
(bfdcore_write): New function.
(cmd_record_restore): New function.
(cmd_record_save): New function. Save a record log to a file.
(_initialize_record): Set up commands for save and restore.
2009-10-17 Michael Snyder <msnyder@vmware.com>
* gcore.h: New file.
* gcore.c (create_gcore_bfd): New function.
(write_gcore_file): New function.
(call_target_sbrk): New function. Abstracted from gcore_command.
(gcore_command): Call call_target_sbrk.
Michael Snyder <msnyder@vmware.com>
* record.c (record_core_ops): New ops target vector.
(record_core_open_1): New function. Open core target.
(record_open_1): New function. Open normal process record.
(record_open): Call one of the above.
(record_close): Allow for both core and normal targets.
(record_core_resume): New function.
(record_core_kill): New function.
(record_core_fetch_registers): New function.
(record_core_prepare_to_store): New function.
(record_core_store_registers): New function.
(record_core_xfer_partial): New function.
(record_core_insert_breakpoint): New function.
(record_core_remove_breakpoint): New function.
(record_core_has_execution): New function.
(init_record_core_ops): New function.
(_initialize_record): Call init_record_core_ops, add_target.
* i386-darwin-nat.c (i386_darwin_fetch_inferior_registers): Use
amd64_supply_fxsave for amd64. Fix the offset.
(i386_darwin_store_inferior_registers): Use amd64_collect_fxsave
for amd64.
Elaborate "info record".
* record.c (struct record_end_entry): New field 'insn_num'.
(record_insn_count): New variable.
(record_open): Initialize record_insn_count.
(info_record_command): Display contents of record log as
lowest, current, and highest instruction counts.
(show_record_insn_number): Delete.
(_initialize_record): Remove add_cmd show_record_insn_number.
Joel Brobecker <brobecker@adacore.com>
* Makefile.in (HFILES_NO_SRCDIR): Remove shnbsd-tdep.h
* configure.tgt (sh*-*-linux*): Add corelow.o to gdb_target_obs.
* sh-linux-tdep.c: Include sh-tdep.h.
(REGSx16): New macro.
(gregs_table, fpregs_table): New variables.
(sh_linux_init_abi): Set core_gregmap and fpregmap.
* sh-tdep.c: Include regset.h.
(sh_corefile_supply_regset): New function.
(sh_corefile_collect_regset): New function.
(sh_corefile_gregset, sh_corefile_fpregset): New variables.
(sh_regset_from_core_section): New function.
(sh_gdbarch_init): Set up tdep value.
Call set_gdbarch_regset_from_core_section.
* sh-tdep.h (PC_REGNUM): New enum value.
(struct sh_corefile_regs): New type.
(sh_corefile_gregset): Export variable.
(sh_corefile_supply_regset): New prototype.
(sh_corefile_collect_regset): New prototype.
* shnbsd-tdep.c: Remove include of regcache.h, gdb_assert.h and
shnbsd-tdep.h.
(regmap): Use new definition using struct sh_corefile_regs.
(shnbsd_supply_gregset, shnbsd_collect_gregset): Delete.
(shnbsd_gregset): Delete.
(shnbsd_regset_from_core_section): Delete.
(shnbsd_supply_reg, shnbsd_fill_reg): Use new regset interface.
(shnbsd_init_abi): Set core_gregmap.
(shnbsd_supply_reg): Delete.
(shnbsd_fill_reg): Delete.
(SHNBSD_SIZEOF_GREGS): Move ...
* shnbsd-nat.c (SHNBSD_SIZEOF_GREGS): ... to here.
Remove include of shnbsd-tdep.h.
(shnbsd_fetch_inferior_registers): Replace shnbsd_supply_reg call
with sh_corefile_supply_regset.
(shnbsd_store_inferior_registers): Replace shnbsd_fill_reg call with
sh_corefile_collect_regset.
* shnbsd-tdep.h: Delete file.
Michael Snyder <msnyder@vmware.com>
* record.c (record_exec_insn): New function. Emulate one
instruction, forward or backward. Abstracted from record_wait.
(record_wait) Call record_exec_insn.
the branch only.
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
Stan Shebs <stan@codesourcery.com>
Add base multi-executable/process support to GDB.
gdb/
* Makefile.in (SFILES): Add progspace.c.
(COMMON_OBS): Add progspace.o.
* progspace.h: New.
* progspace.c: New.
* breakpoint.h (struct bp_target_info) <placed_address_space>: New
field.
(struct bp_location) <pspace>: New field.
(struct breakpoint) <pspace>: New field.
(bpstat_stop_status, breakpoint_here_p)
(moribund_breakpoint_here_p, breakpoint_inserted_here_p)
(regular_breakpoint_inserted_here_p)
(software_breakpoint_inserted_here_p, breakpoint_thread_match)
(set_default_breakpoint): Adjust prototypes.
(remove_breakpoints_pid, breakpoint_program_space_exit): Declare.
(insert_single_step_breakpoint, deprecated_insert_raw_breakpoint):
Adjust prototypes.
* breakpoint.c (executing_startup): Delete.
(default_breakpoint_sspace): New.
(breakpoint_restore_shadows): Skip if the address space doesn't
match.
(update_watchpoint): Record the frame's program space in the
breakpoint location.
(insert_bp_location): Record the address space in target_info.
Adjust to pass the symbol space to solib_name_from_address.
(breakpoint_program_space_exit): New.
(insert_breakpoint_locations): Switch the symbol space and thread
when inserting breakpoints. Don't insert breakpoints in a vfork
parent waiting for vfork done if we're not attached to the vfork
child.
(remove_breakpoints_pid): New.
(reattach_breakpoints): Switch to a thread of PID. Ignore
breakpoints of other symbol spaces.
(create_internal_breakpoint): Store the symbol space in the sal.
(create_longjmp_master_breakpoint): Iterate over all symbol
spaces.
(update_breakpoints_after_exec): Ignore breakpoints for other
symbol spaces.
(remove_breakpoint): Rename to ...
(remove_breakpoint_1): ... this. Pass the breakpoints symbol
space to solib_name_from_address.
(remove_breakpoint): New.
(mark_breakpoints_out): Ignore breakpoints from other symbol
spaces.
(breakpoint_init_inferior): Ditto.
(breakpoint_here_p): Add an address space argument and adjust to
use breakpoint_address_match.
(moribund_breakpoint_here_p): Ditto.
(regular_breakpoint_inserted_here_p): Ditto.
(breakpoint_inserted_here_p): Ditto.
(software_breakpoint_inserted_here_p): Ditto.
(breakpoint_thread_match): Ditto.
(bpstat_check_location): Ditto.
(bpstat_stop_status): Ditto.
(print_breakpoint_location): If there's a location to print,
switch the current symbol space.
(print_one_breakpoint_location): Add `allflag' argument.
(print_one_breakpoint): Ditto. Adjust.
(do_captured_breakpoint_query): Adjust.
(breakpoint_1): Adjust.
(breakpoint_has_pc): Also match the symbol space.
(describe_other_breakpoints): Add a symbol space argument and
adjust.
(set_default_breakpoint): Add a symbol space argument. Set
default_breakpoint_sspace.
(breakpoint_address_match): New.
(check_duplicates_for): Add an address space argument, and adjust.
(set_raw_breakpoint): Record the symbol space in the location and
in the breakpoint.
(set_longjmp_breakpoint): Skip longjmp master breakpoints from
other symbol spaces.
(remove_thread_event_breakpoints, remove_solib_event_breakpoints)
(disable_breakpoints_in_shlibs): Skip breakpoints from other
symbol spaces.
(disable_breakpoints_in_unloaded_shlib): Match symbol spaces.
(create_catchpoint): Set the symbol space in the sal.
(disable_breakpoints_before_startup): Skip breakpoints from other
symbol spaces. Set executing_startup in the current symbol space.
(enable_breakpoints_after_startup): Clear executing_startup in the
current symbol space. Skip breakpoints from other symbol spaces.
(clone_momentary_breakpoint): Also copy the symbol space.
(add_location_to_breakpoint): Set the location's symbol space.
(bp_loc_is_permanent): Switch thread and symbol space.
(create_breakpoint): Adjust.
(expand_line_sal_maybe): Expand comment to mention symbol spaces.
Switch thread and symbol space when reading memory.
(parse_breakpoint_sals): Set the symbol space in the sal.
(break_command_really): Ditto.
(skip_prologue_sal): Switch and space.
(resolve_sal_pc): Ditto.
(watch_command_1): Record the symbol space in the sal.
(create_ada_exception_breakpoint): Adjust.
(clear_command): Adjust. Match symbol spaces.
(update_global_location_list): Use breakpoint_address_match.
(breakpoint_re_set_one): Switch thread and space.
(breakpoint_re_set): Save symbol space.
(breakpoint_re_set_thread): Also reset the symbol space.
(deprecated_insert_raw_breakpoint): Add an address space argument.
Adjust.
(insert_single_step_breakpoint): Ditto.
(single_step_breakpoint_inserted_here_p): Ditto.
(clear_syscall_counts): New.
(_initialize_breakpoint): Install it as inferior_exit observer.
* exec.h: Include "progspace.h".
(exec_bfd, exec_bfd_mtime): New defines.
(exec_close): Declare.
* exec.c: Include "gdbthread.h" and "progspace.h".
(exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete.
(using_exec_ops): New.
(exec_close_1): Rename to exec_close, and make public.
(exec_close): Rename to exec_close_1, and adjust all callers. Add
description. Remove target sections and close executables from
all program spaces.
(exec_file_attach): Add comment.
(add_target_sections): Check on `using_exec_ops' to check if the
target should be pushed.
(remove_target_sections): Only unpush the target if there are no
more target sections in any symbol space.
* gdbcore.h: Include "exec.h".
(exec_bfd, exec_bfd_mtime): Remove declarations.
* frame.h (get_frame_program_space, get_frame_address_space)
(frame_unwind_program_space): Declare.
* frame.c (struct frame_info) <pspace, aspace>: New fields.
(create_sentinel_frame): Add program space argument. Set the
pspace and aspace fields of the frame object.
(get_current_frame, create_new_frame): Adjust.
(get_frame_program_space): New.
(frame_unwind_program_space): New.
(get_frame_address_space): New.
* stack.c (print_frame_info): Adjust.
(print_frame): Use the frame's program space.
* gdbthread.h (any_live_thread_of_process): Declare.
* thread.c (any_live_thread_of_process): New.
(switch_to_thread): Switch the program space as well.
(restore_selected_frame): Don't warn if trying to restore frame
level 0.
* inferior.h: Include "progspace.h".
(detach_fork): Declare.
(struct inferior) <removable, aspace, pspace>
<vfork_parent, vfork_child, pending_detach>
<waiting_for_vfork_done>: New fields.
<terminal_info>: Remove field.
<data, num_data>: New fields.
(register_inferior_data, register_inferior_data_with_cleanup)
(clear_inferior_data, set_inferior_data, inferior_data): Declare.
(exit_inferior, exit_inferior_silent, exit_inferior_num_silent)
(inferior_appeared): Declare.
(find_inferior_pid): Typo.
(find_inferior_id, find_inferior_for_program_space): Declare.
(set_current_inferior, save_current_inferior, prune_inferiors)
(number_of_inferiors): Declare.
(inferior_list): Declare.
* inferior.c: Include "gdbcore.h" and "symfile.h".
(inferior_list): Make public.
(delete_inferior_1): Always delete thread silently.
(find_inferior_id): Make public.
(current_inferior_): New.
(current_inferior): Use it.
(set_current_inferior): New.
(restore_inferior): New.
(save_current_inferior): New.
(free_inferior): Free the per-inferior data.
(add_inferior_silent): Allocate per-inferior data.
Call inferior_appeared.
(delete_threads_of_inferior): New.
(delete_inferior_1): Adjust interface to take an inferior pointer.
(delete_inferior): Adjust.
(delete_inferior_silent): Adjust.
(exit_inferior_1): New.
(exit_inferior): New.
(exit_inferior_silent): New.
(exit_inferior_num_silent): New.
(detach_inferior): Adjust.
(inferior_appeared): New.
(discard_all_inferiors): Adjust.
(find_inferior_id): Make public. Assert pid is not zero.
(find_inferior_for_program_space): New.
(have_inferiors): Check if we have any inferior with pid not zero.
(have_live_inferiors): Go over all pushed targets looking for
process_stratum.
(prune_inferiors): New.
(number_of_inferiors): New.
(print_inferior): Add executable column. Print vfork parent/child
relationships.
(inferior_command): Adjust to cope with not running inferiors.
(remove_inferior_command): New.
(add_inferior_command): New.
(clone_inferior_command): New.
(struct inferior_data): New.
(struct inferior_data_registration): New.
(struct inferior_data_registry): New.
(inferior_data_registry): New.
(register_inferior_data_with_cleanup): New.
(register_inferior_data): New.
(inferior_alloc_data): New.
(inferior_free_data): New.
(clear_inferior_data): New.
(set_inferior_data): New.
(inferior_data): New.
(initialize_inferiors): New.
(_initialize_inferiors): Register "add-inferior",
"remove-inferior" and "clone-inferior" commands.
* objfiles.h: Include "progspace.h".
(struct objfile) <pspace>: New field.
(symfile_objfile, object_files): Don't declare.
(ALL_PSPACE_OBJFILES): New.
(ALL_PSPACE_OBJFILES_SAFE): New.
(ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust.
(ALL_PSPACE_SYMTABS): New.
(ALL_PRIMARY_SYMTABS): Adjust.
(ALL_PSPACE_PRIMARY_SYMTABS): New.
(ALL_PSYMTABS): Adjust.
(ALL_PSPACE_PSYMTABS): New.
* objfiles.c (object_files, symfile_objfile): Delete.
(struct objfile_sspace_info): New.
(objfiles_pspace_data): New.
(objfiles_pspace_data_cleanup): New.
(get_objfile_pspace_data): New.
(objfiles_changed_p): Delete.
(allocate_objfile): Set the objfile's program space. Adjust to
reference objfiles_changed_p in pspace data.
(free_objfile): Adjust to reference objfiles_changed_p in pspace
data.
(objfile_relocate): Ditto.
(update_section_map): Add pspace argument. Adjust to iterate over
objfiles in the passed in pspace.
(find_pc_section): Delete sections and num_sections statics.
Adjust to refer to program space's objfiles_changed_p. Adjust to
refer to sections and num_sections store in the objfile's pspace
data.
(objfiles_changed): Adjust to reference objfiles_changed_p in
pspace data.
(_initialize_objfiles): New.
* linespec.c (decode_all_digits, decode_dollar): Set the sal's
program space.
* source.c (current_source_pspace): New.
(get_current_source_symtab_and_line): Set the sal's program space.
(set_current_source_symtab_and_line): Set current_source_pspace.
(select_source_symtab): Ditto. Use ALL_OBJFILES.
(forget_cached_source_info): Iterate over all program spaces.
* symfile.c (clear_symtab_users): Adjust.
* symmisc.c (print_symbol_bcache_statistics): Iterate over all
program spaces.
(print_objfile_statistics): Ditto.
(maintenance_print_msymbols): Ditto.
(maintenance_print_objfiles): Ditto.
(maintenance_info_symtabs): Ditto.
(maintenance_info_psymtabs): Ditto.
* symtab.h (SYMTAB_PSPACE): New.
(struct symtab_and_line) <pspace>: New field.
* symtab.c (init_sal): Clear the sal's program space.
(find_pc_sect_symtab): Set the sal's program space. Switch thread
and space.
(append_expanded_sal): Add program space argument. Iterate over
all program spaces.
(expand_line_sal): Iterate over all program spaces. Switch
program space.
* target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New.
(struct target_ops) <to_thread_address_space>: New field.
(target_thread_address_space): Define.
* target.c (target_detach): Only remove breakpoints from the
inferior we're detaching.
(target_thread_address_space): New.
* defs.h (initialize_progspace): Declare.
* top.c (gdb_init): Call it.
* solist.h (struct so_list) <sspace>: New field.
* solib.h (struct program_space): Forward declare.
(solib_name_from_address): Adjust prototype.
* solib.c (so_list_head): Replace with a macro referencing the
program space.
(update_solib_list): Set the so's program space.
(solib_name_from_address): Add a program space argument and adjust.
* solib-svr4.c (struct svr4_info) <pid>: Delete field.
<interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low>
<interp_plt_sect_high>: New fields.
(svr4_info_p, svr4_info): Delete.
(solib_svr4_sspace_data): New.
(get_svr4_info): Rewrite.
(svr4_sspace_data_cleanup): New.
(open_symbol_file_object): Adjust.
(svr4_default_sos): Adjust.
(svr4_fetch_objfile_link_map): Adjust.
(interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low)
(interp_plt_sect_high): Delete.
(svr4_in_dynsym_resolve_code): Adjust.
(enable_break): Adjust.
(svr4_clear_solib): Revert bit that removed the svr4_info here,
and reinstate clearing debug_base, debug_loader_offset_p,
debug_loader_offset and debug_loader_name.
(_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't
install an inferior_exit observer anymore.
* printcmd.c (struct display) <pspace>: New field.
(display_command): Set the display's sspace.
(do_one_display): Match the display's sspace.
(display_uses_solib_p): Ditto.
* linux-fork.c (detach_fork): Moved to infrun.c.
(_initialize_linux_fork): Moved "detach-on-fork" command to
infrun.c.
* infrun.c (detach_fork): Moved from linux-fork.c.
(proceed_after_vfork_done): New.
(handle_vfork_child_exec_or_exit): New.
(follow_exec_mode_replace, follow_exec_mode_keep)
(follow_exec_mode_names, follow_exec_mode_string)
(show_follow_exec_mode_string): New.
(follow_exec): New. Reinstate the mark_breakpoints_out call.
Remove shared libraries before attaching new executable. If user
wants to keep the inferior, keep it.
(displaced_step_fixup): Adjust to pass an address space to the
breakpoints module.
(resume): Ditto.
(clear_proceed_status): In all-stop mode, always clear the proceed
status of all threads.
(prepare_to_proceed): Adjust to pass an address space to the
breakpoints module.
(proceed): Ditto.
(adjust_pc_after_break): Ditto.
(handle_inferior_event): When handling a process exit, switch the
program space to the inferior's that had exited. Call
handle_vfork_child_exec_or_exit. Adjust to pass an address space
to the breakpoints module. In non-stop mode, when following a
fork and detach-fork is off, also resume the other branch. Handle
TARGET_WAITKIND_VFORK_DONE. Set the program space in sals.
(normal_stop): Prune inferiors.
(_initialize_infrun): Install the new "follow-exec-mode" command.
"detach-on-fork" moved here.
* regcache.h (get_regcache_aspace): Declare.
* regcache.c (struct regcache) <aspace>: New field.
(regcache_xmalloc): Clear the aspace.
(get_regcache_aspace): New.
(regcache_cpy): Copy the aspace field.
(regcache_cpy_no_passthrough): Ditto.
(get_thread_regcache): Fetch the thread's address space from the
target, and store it in the regcache.
* infcall.c (call_function_by_hand): Set the sal's pspace.
* arch-utils.c (default_has_shared_address_space): New.
* arch-utils.h (default_has_shared_address_space): Declare.
* gdbarch.sh (has_shared_address_space): New.
* gdbarch.h, gdbarch.c: Regenerate.
* linux-tdep.c: Include auxv.h, target.h, elf/common.h.
(linux_has_shared_address_space): New.
(_initialize_linux_tdep): Declare.
* arm-tdep.c (arm_software_single_step): Pass the frame's address
space to insert_single_step_breakpoint.
* arm-linux-tdep.c (arm_linux_software_single_step): Pass the
frame's pspace to breakpoint functions.
* cris-tdep.c (crisv32_single_step_through_delay): Ditto.
(cris_software_single_step): Ditto.
* mips-tdep.c (deal_with_atomic_sequence): Add frame argument.
Pass the frame's pspace to breakpoint functions.
(mips_software_single_step): Adjust.
(mips_single_step_through_delay): Adjust.
* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
* solib-irix.c (enable_break): Adjust to pass the current frame's
address space to breakpoint functions.
* sparc-tdep.c (sparc_software_single_step): Ditto.
* spu-tdep.c (spu_software_single_step): Ditto.
* alpha-tdep.c (alpha_software_single_step): Ditto.
* record.c (record_wait): Adjust to pass an address space to the
breakpoints module.
* fork-child.c (fork_inferior): Set the new inferior's program and
address spaces.
* inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program
and address spaces.
(inf_ptrace_attach): Set the inferior's program and address spaces.
* linux-nat.c: Include "solib.h".
(linux_child_follow_fork): Manage parent and child's program and
address spaces. Clone the parent's program space if necessary.
Don't wait for the vfork to be done here. Refuse to resume if
following the vfork parent while leaving the child stopped.
(resume_callback): Don't resume a vfork parent.
(linux_nat_resume): Also check for pending events in the
lp->waitstatus field.
(linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE
events to the core.
(stop_wait_callback): Don't wait for SIGSTOP on vfork parents.
(cancel_breakpoint): Adjust.
* linux-thread-db.c (thread_db_wait): Don't remove thread event
breakpoints here.
(thread_db_mourn_inferior): Don't mark breakpoints out here.
Remove thread event breakpoints after mourning.
* corelow.c: Include progspace.h.
(core_open): Set the inferior's program and address spaces.
* remote.c (remote_add_inferior): Set the new inferior's program
and address spaces.
(remote_start_remote): Update address spaces.
(extended_remote_create_inferior_1): Don't init the thread list if
we already debugging other inferiors.
* darwin-nat.c (darwin_attach): Set the new inferior's program and
address spaces.
* gnu-nat.c (gnu_attach): Ditto.
* go32-nat.c (go32_create_inferior): Ditto.
* inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto.
* monitor.c (monitor_open): Ditto.
* nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto.
* procfs.c (do_attach): Ditto.
* windows-nat.c (do_initial_windows_stuff): Ditto.
* inflow.c (inferior_process_group)
(terminal_init_inferior_with_pgrp, terminal_inferior,
(terminal_ours_1, inflow_inferior_exit, copy_terminal_info)
(child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust
to use per-inferior data instead of inferior->terminal_info.
(inflow_inferior_data): New.
(inflow_new_inferior): Delete.
(inflow_inferior_data_cleanup): New.
(get_inflow_inferior_data): New.
* mi/mi-interp.c (mi_new_inferior): Rename to...
(mi_inferior_appeared): ... this.
(mi_interpreter_init): Adjust.
* tui/tui-disasm.c: Include "progspace.h".
(tui_set_disassem_content): Pass an address space to
breakpoint_here_p.
* NEWS: Mention multi-program debugging support. Mention new
commands "add-inferior", "clone-inferior", "remove-inferior",
"maint info program-spaces", and new option "set
follow-exec-mode".
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* observer.texi (new_inferior): Rename to...
(inferior_appeared): ... this.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/testsuite/
* gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork".
* gdb.base/foll-exec.exp: Adjust to expect a process id before
"Executing new program".
* gdb.base/foll-fork.exp: Adjust to spell out "follow-fork".
* gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being
left listed after having been killed.
* gdb.base/attach.exp: Adjust to spell out "symbol-file".
* gdb.base/maint.exp: Adjust test.
* Makefile.in (ALL_SUBDIRS): Add gdb.multi.
* gdb.multi/Makefile.in: New.
* gdb.multi/base.exp: New.
* gdb.multi/goodbye.c: New.
* gdb.multi/hangout.c: New.
* gdb.multi/hello.c: New.
* gdb.multi/bkpt-multi-exec.c: New.
* gdb.multi/bkpt-multi-exec.exp: New.
* gdb.multi/crashme.c: New.
2009-10-19 Pedro Alves <pedro@codesourcery.com>
Stan Shebs <stan@codesourcery.com>
gdb/doc/
* gdb.texinfo (Inferiors): Rename node to ...
(Inferiors and Programs): ... this. Mention running multiple
programs in the same debug session.
<info inferiors>: Mention the new 'Executable' column if "info
inferiors". Update examples. Document the "add-inferior",
"clone-inferior", "remove-inferior" and "maint info
program-spaces" commands.
(Process): Rename node to...
(Forks): ... this. Document "set|show follow-exec-mode".
* record.c (struct record_reg_entry): Replace ptr with union
of ptr and buf.
(struct record_mem_entry): Ditto.
(record_reg_alloc): Don't alloc ptr if reg will fit into buf.
(record_mem_alloc): Ditto.
(record_reg_release): Don't free ptr if reg was stored in buf.
(record_mem_release): Ditto.
(record_get_loc): New function. Return a pointer to where the
value (mem or reg) is to be stored.
(record_arch_list_add_reg): Call record_get_loc instead of using ptr.
(record_arch_list_add_mem): Ditto.
(record_wait): Ditto.
* record.c (record_insn_max_num): Make unsigned.
(_initialize_record): Use uinteger instead of zinteger for
set command, so that it will report "unlimited" for zero.
* record.c (record_reg_alloc): New function.
(record_reg_release): New function.
(record_mem_alloc): New function.
(record_mem_release): New function.
(record_end_alloc): New function.
(record_end_release): New function.
(record_entry_release): New function.
(record_list_release): Simplify, call record_entry_release.
(record_list_release_next): Rename to record_list_release_following.
Simplify and call record_entry_release.
(record_list_release_first): Simplify, comment, and use
record_entry_release.
(record_arch_list_add_reg): Simplify, call record_reg_alloc.
(record_arch_list_add_mem): Simplify, call record_mem_alloc.
(record_arch_list_add_end): Simplify, call record_end_alloc.
* sh-tdep.c (sh_gdbarch_init): Add show_regs settings for
bfd_mach_sh3_nommu, bfd_mach_sh2a_nofpu_or_sh3_nommu,
bfd_mach_sh2a_or_sh3e, bfd_mach_sh2a_or_sh4, bfd_mach_sh4_nommu_nofpu,
and bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu.
Move bfd_mach_sh2a_or_sh4 to use the same configuration as
bfd_mach_sh4.
* solib-darwin.c: Add an empty line after comment for functions.
(struct gdb_dyld_all_image_infos): Improve comment.
(DYLD_VERSION): Removed and replaced by ...
(DYLD_VERSION_MAX, DYLD_VERSION_MIN): ... New macros.
(darwin_dyld_version_ok): New function.
(darwin_load_image_infos): Call darwin_dyld_version_ok.
(darwin_current_sos): Ditto.
(darwin_solib_create_inferior_hook): Ditto.
* machoread.c: Add an empty line after comment for functions.
(oso_el_compare_name): New function.
(macho_add_oso_symfile): New function.
(macho_oso_symfile): Use macho_add_oso_symfile. Sort the oso
and optimize accesses to libraries.
(core_close): Clear it.
(add_to_thread_list): Fake a pid if one is not found on a Solaris
core. Add the inferior here. Always add the thread, don't use
thread_change_ptid.
(core_open): Don't add the main thread or the inferior here unless
we find that the core had no .reg/NN sections.
(get_core_register_section): Handle Solaris cores with fake pids.
(SYSCALL_SIGTRAP): New.
(status_to_str): Adjust.
(get_pending_status): Pending events in lp->waitstatus don't map
to any signal. Simplify.
(linux_handle_syscall_trap): New.
(linux_handle_extended_wait): When handling PTRACE_EVENT_CLONE
events, use linux_ops->to_resume instead of direct ptrace with
PTRACE_CONT. Remove all TRAP_IS_SYSCALL handling.
(wait_lwp): Handle syscall traps with linux_handle_syscall_trap,
and clear the sysgood bit.
(status_callback): Make it clearer and add comments.
(cancel_breakpoints_callback): Ignore if LP has waitstatus set.
(linux_nat_filter_event): Handle syscall traps with
linux_handle_syscall_trap, and clear the sysgood bit. Move the
check for storing siginfo to after handling extended statuses and
syscall traps. Store status in the lwp object.
(linux_wait_1): Don't swap the pending status out of the lwp
object until after deciding we found an lwp with an interesting
event. Requeue a new pending signal if we find one while getting
rid or a pending SIGSTOP we sent ourselves. Don't clear the
sysgood bit here.
* infrun.c (deal_with_syscall_event): Rename to ...
(handle_syscall_event): ... this. Always context switch and set
stop_pc, even if not catching the syscall. If not catching the
syscall, always resume with keep_going.
(handle_inferior_event): Adjust.
* gdb.base/breakpoint-shadow.exp: Move the ia64 part into ...
* gdb.arch/ia64-breakpoint-shadow.exp: ... a new file, with new tests.
* gdb.arch/ia64-breakpoint-shadow.S: New file.
* gdbarch.c, gdbarch.h: Regenerate.
* arch-utils.c (default_displaced_step_hw_singlestep): New function.
* arch-utils.h (default_displaced_step_hw_singlestep): Add prototype.
* ppc-linux-tdep.c (ppc_displaced_step_hw_singlestep): New function.
(rs6000_gdbarch_init): Install it.
* infrun.c (displaced_step_fixup): Use new callback to determine
whether to "step" or "continue" displaced copy.
(resume): Likewise. Do not call maybe_software_singlestep
for displaced stepping.
(maybe_software_singlestep): Do not handle displaced stepping.
platforms that use function descriptors. Prefer to use function
pointer types instead of function types.
* linespec.c (decode_objc): Support function descriptors. Fully
initialize SAL result.
* objc-lang.c (find_methods): Support function descriptors.
Do not require function symbol to point to text section.
* ppc-sysv-tdep.c (ppc64_sysv_abi_push_dummy_call): When calling
via a function pointer, use the descriptor it points to.
* ia64-tdep.c (ia64_memory_insert_breakpoint): Extend the comment.
New variable shadow_slotnum, use it appropriately instead of slotnum.
Move shadow_len initialization before SLOTNUM adjustment, cover now the
whole remaining bundle. Error now on breakpoints requested for the
slot 2 of L-X bundles. Better sanity check the requested slot 1 of L-X
bundles.
(ia64_memory_remove_breakpoint): New variable shadow_slotnum, use it
appropriately instead of slotnum. Warn now on breakpoints requested
for the slot 2 of L-X bundles. Better sanity check the requested slot
1 of L-X bundles. Update the assertio check of PLACED_SIZE.
(ia64_breakpoint_from_pc): New variable shadow_slotnum, use it
appropriately instead of slotnum. Move *lenptr initialization before
SLOTNUM adjustment, cover now the whole remaining bundle. Error now
on breakpoints requested for the slot 2 of L-X bundles. Better sanity
check the requested slot 1 of L-X bundles. Simplify the returned
expression.
* i386-nat.c (i386_stopped_data_address): Also check that
hitted watch register is not vacant.
gdb/testsuite ChangeLog entry:
New test for two watchpoints, with disabling of
the first inserted.
* testsuite/gdb.base/watchpoints.c: New file.
* testsuite/gdb.base/watchpoints.exp: New file.
* charset.c (iconv_open): Use UTF-16 and UTF-32, not UCS-2 and
UCS-4.
(iconv): Rename 'ucs_flag'.
(GDB_DEFAULT_TARGET_WIDE_CHARSET): Use UTF-32.
* c-lang.c (charset_for_string_type): Use UTF-16 and UTF-32, not
UCS-2 and UCS-4.
(convert_ucn): Use UTF-32.
gdb/testsuite
* gdb.base/charset.exp: Use UTF-16 and UTF-32, not UCS-2 and
UCS-4.
* gdb.base/charset.c (utf_32_string): Rename.
(init_utf32): Rename.
(main): Update.
(init_last_source_visited): Delete.
(directory_command): Do not clear last_source_visited. Call
forget_cached_source_info only if required.
(unset_substitute_path_command, set_substitute_path_command): Call
forget_cached_source_info.
* mi/mi-cmd-env.c (mi_cmd_env_dir): Do not call
init_last_source_visited.
* defs.h (init_last_source_visited): Delete declaration.
and destructor using typedef name of class.
* gdb.cp/classes.cc (class Base1): Add a destructor.
(base1): New typedef.
(use_methods): Instanitate an object of type base1.
* gdb.cp/templates.exp (test_template_typedef): New procedure.
(do_tests): Call test_template_typedef.
* gdb.cp/templates.cc (Baz::~Baz): New method.
(intBazOne): New typedef.
(main): Instantiate intBazOne.
PR python/10633
* c-lang.c (c_printstr): Do not loop past options->print_max when
iterating with wchar_iterate.
2009-09-21 Phil Muldoon <pmuldoon@redhat.com>
PR python/10633
* gdb.python/py-prettyprint.exp (gdb_py_test_silent_cmd): New
Function.
(run_lang_tests): Add print elements test.
* python/py-value.c (valpy_getitem): Test value before allowing
subscript operation.
2009-09-21 Phil Muldoon <pmuldoon@redhat.com>
* gdb.python/py-value.exp (test_subscript_regression): New
function. Test for invalid subscripts.
* gdb.python/py-value.c (main): Add test array, and pointer to it.
(ptr_ref): New function.
Michael Snyder <msnyder@vmware.com>
* amd64-linux-tdep.c (amd64_all_but_ip_registers_record): New
function.
(amd64_linux_syscall_record): Call
amd64_all_but_ip_registers_record if syscall is
sys_rt_sigreturn.
(AMD64_LINUX_redzone, AMD64_LINUX_xstate,
AMD64_LINUX_frame_size): New macros.
(amd64_linux_record_signal): New function.
(amd64_linux_init_abi): Call set_gdbarch_process_record_signal.
Michael Snyder <msnyder@vmware.com>
* i386-linux-tdep.c (i386_all_but_ip_registers_record): New
function.
(i386_linux_intx80_sysenter_record): Call
i386_all_but_ip_registers_record if syscall is sys_sigreturn
or sys_rt_sigreturn.
(I386_LINUX_xstate, I386_LINUX_frame_size): New macros.
(i386_linux_record_signal): New function.
(i386_linux_init_abi): Call set_gdbarch_process_record_signal.
* mi/mi-cmds.c (mi_cmds): Register -stack-list-variables.
* mi/mi-cmd-stack.c (enum what_to_list): New.
(list_args_or_locals): Accept what_to_list parameter.
Use 'variables' as output name of all are requested.
(mi_cmd_stack_list_variables): New.
(mi_cmd_stack_list_locals, mi_cmd_stack_list_args): Adjust.
* gdb_ptrace.h (PT_SYSCALL): Define here if not already defined.
* inf-ttrace.c (inf_ttrace_wait): Fix compilation failure
introduced after field syscall_id inside struct target_waitstatus
has been renamed into syscall_number.
enum values.
(struct dwarf_stack_value): New struct.
(struct dwarf_expr_context): Change type of `stack' from CORE_ADDR*
to struct dwarf_stack_value*.
(struct dwarf_expr_piece): Move `v.value' into its own struct, v.expr,
all uses updated. Add v.expr.in_stack_memory.
(dwarf_expr_push): Update declaration.
(dwarf_expr_fetch_in_stack_memory): Declare.
* dwarf2expr.c (dwarf_expr_grow_stack): Update calculation of
size of stack value.
(dwarf_expr_push): New arg in_stack_memory, all callers updated.
(dwarf_expr_fetch_in_stack_memory): New function.
(add_piece): Set in_stack_memory for non-literal values.
(execute_stack_op): Allow ops to specify whether the value is on the
program's stack.
(execute_stack_op, case DW_OP_fbreg): Mark value as in stack memory.
(execute_stack_op, case DW_OP_call_frame_cfa): Ditto.
(execute_stack_op, case DW_OP_dup): Copy in_stack_memory flag.
(execute_stack_op, cases DW_OP_pick, DW_OP_over): Ditto.
(execute_stack_op, cases DW_OP_swap, DW_OP_rot): Update type of
dwarf stack value.
* dwarf2loc.c (read_pieced_value): Call read_stack for values known
to be on the program's stack.
(dwarf2_evaluate_loc_desc, case DWARF_VALUE_MEMORY): Call
set_value_stack only for objects known to be in stack memory.
* dwarf2-frame.c (execute_stack_op): New arg initial_in_stack_memory,
all callers updated.
Fix gcc-4.5 HEAD warnings for enum ada_operator.
* Makefile.in (HFILES_NO_SRCDIR): Add ada-operator.inc.
* ada-lang.h (enum ada_operator): Move it to ...
* ada-operator.inc: ... a new file.
* expression.h (enum exp_opcode): Include ada-operator.inc.
New element OP_UNUSED_LAST. Update comment for OP_EXTENDED0.
gdb/
Fix gcc-4.5 HEAD warnings for GDB_FORM_cached_string.
* dwarf2read.c (GDB_FORM_cached_string)
(dwarf_form_name <GDB_FORM_cached_string>): Remove.
(struct attribute <dwarf_form>): Reduce the bit width.
(struct attribute <string_is_canonical>, DW_STRING_IS_CANONICAL): New.
(read_attribute_value <DW_FORM_string>)
(read_attribute_value <DW_FORM_strp>): Initialize
DW_STRING_IS_CANONICAL.
(dwarf2_name, dump_die_shallow <DW_FORM_string>)
(dump_die_shallow <DW_FORM_strp>): Update the code using former
GDB_FORM_cached_string.
* amd64-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall name for the architecture.
(amd64_linux_get_syscall_number): New function.
(amd64_linux_init_abi): Register the correct functions for syscall
catchpoint; set the correct syscall file name.
* breakpoint.c: New include: xml-syscall.h.
(set_raw_breakpoint_without_location): Setting the parameters
for the catch syscall feature.
(insert_catch_syscall): New.
(remove_catch_syscall): New.
(breakpoint_hit_catch_syscall): New.
(print_it_catch_syscall): New.
(print_one_catch_syscall): New.
(print_mention_catch_syscall): New.
(catch_syscall_breakpoint_ops): New.
(syscall_catchpoint_p): New.
(create_catchpoint_without_mention): New.
(create_catchpoint): Modified in order to use
create_catchpoint_without_mention.
(create_syscall_event_catchpoint): New.
(clean_up_filters): New.
(catch_syscall_split_args): New.
(catch_syscall_command_1): New.
(delete_breakpoint): Add cleanup for catch syscall.
(is_syscall_catchpoint_enabled): New.
(catch_syscall_enabled): New.
(catching_syscall_number): New.
(catch_syscall_completer): New completer function.
(add_catch_command): Add the completer function for catchpoints.
* breakpoint.h (syscalls_to_be_caught): New vector.
(catch_syscall_enabled): New.
(catching_syscall_number): New.
* gdbarch.c: Regenerated.
* gdbarch.h: Regenerated.
* gdbarch.sh: Add syscall catchpoint functions and structures.
(get_syscall_number): New.
(UNKNOWN_SYSCALL): New definition.
* i386-linux-nat.c (i386_linux_resume): Select the proper request
to be made for ptrace() considering if we are catching syscalls
or not.
* i386-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall name for the architecture.
(i386_linux_get_syscall_number): New.
(i386_linux_init_abi): Register the correct functions for syscall
catchpoint; set the correct syscall file name.
* inf-child.c (inf_child_set_syscall_catchpoint): New.
(inf_child_target): Assign default values to target_ops.
* inf-ptrace.c (inf_ptrace_resume): Select the proper request
to be made for ptrace() considering if we are catching syscalls
or not.
* inferior.h (struct inferior): Included new variables
any_syscall_count, syscalls_counts and total_syscalls_count,
used to keep track of requested syscall catchpoints.
* infrun.c (resume): Add syscall catchpoint.
(deal_with_syscall_event): New.
(handle_inferior_event): Add syscall entry/return events.
(inferior_has_called_syscall): New.
* linux-nat.c: Define some helpful variables to track wether we have
support for the needed ptrace option.
(linux_test_for_tracesysgood): New.
(linux_supports_tracesysgood): New.
(linux_enable_tracesysgood): New.
(linux_enable_event_reporting): Save the current used ptrace
options.
(linux_child_post_attach): Calling linux_enable_tracesysgood.
(linux_child_post_startup_inferior): Likewise.
(linux_child_set_syscall_catchpoint): New function.
(linux_handle_extended_wait): Handle the case which the inferior stops
because it has called or returned from a syscall.
(linux_target_install_ops): Install the necessary functions to handle
syscall catchpoints.
* linux-nat.h (struct lwp_info): Include syscall_state into the
structure, which indicates if we are in a syscall entry or return.
* ppc-linux-tdep.c: Include xml-syscall.h header, define the XML
syscall filename for the arch.
(ppc_linux_get_syscall_number): New.
(ppc_linux_init_abi): Register the correct functions for syscall
catchpoint; setting the correct name for the XML syscall file.
* target.c (update_current_target): Update/copy functions related to
syscall catchpoint.
(target_waitstatus_to_string): Add syscall catchpoint entry/return
events.
* target.h (struct target_waitstatus): Add syscall number.
(struct syscall): New struct to hold information about syscalls
in the system.
(struct target_ops): Add ops for syscall catchpoint.
(inferior_has_called_syscall): New.
(target_set_syscall_catchpoint): New.
* xml-support.c (xml_fetch_content_from_file): New function,
transferred from xml-tdesc.c.
* xml-support.h (xml_fetch_content_from_file): New.
* xml-tdesc.c (fetch_xml_from_file): Function removed;
transferred to xml-support.c.
(file_read_description_xml): Updated to use the new
xml_fetch_content_from_file function.
* syscalls/gdb-syscalls.dtd: New definition file for syscall's XML
support.
* syscalls/amd64-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use amd64 architecture.
* syscalls/i386-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use i386 architecture.
* syscalls/ppc-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use PPC architecture.
* syscalls/ppc64-linux.xml: New file containing information about
syscalls for GNU/Linux systems that use PPC64 architecture.
* xml-syscall.c: New file containing functions for manipulating
syscall's XML files.
* xml-syscall.h: New file, exporting the functions above mentioned.
* Makefile.in: Support for relocatable GDB datadir and XML
syscall.
* NEWS: Added information about the catch syscall feature.
* doc/gdb.texinfo (Set Catchpoints): Documentation about the new
feature.
* testsuite/Makefile.in: Inclusion of catch-syscall object.
* testsuite/gdb.base/catch-syscall.c: New file.
* testsuite/gdb.base/catch-syscall.exp: New file.
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