Based on work from Daniel Jacobowitz <dan@codesourcery.com>
* c-typeprint.c (cp_type_print_method_args): For non-static methods,
print out const or volatile qualifiers, too.
(c_type_print_args): Add parameters show_artificial and language.
Skip artificial parameters when requested.
Use the appropriate language printer.
(c_type_print_varspec): Tell c_type_print_args to skip artificial
parameters and pass language_c.
* dwarf2read.c (die_list): New file global.
(struct partial_die_info): Update comments for name field.
(pdi_needs_namespace): Renamed to ...
(die_needs_namespace): ... this. Rewrite.
(dwarf2_linkage_name): Remove.
(add_partial_symbol): Do not predicate the call to
partial_die_full_name based on pdi_needs_namespace.
Remove call to cp_check_possible_namespace_symbols and associated
outdated comments.
(guess_structure_name): Do not inspect child subprogram DIEs.
(dwarf2_fullname): Update comments.
Use die_needs_namespace to assist in computing the name.
(read_func_scope): Use dwarf2_name to get the DIE's name.
Use dwarf2_physname to get the "linkage name" of the DIE.
(dwarf2_add_member_field): Use dwarf2_physname instead of
dwarf2_linkage_name.
(read_structure_type): For structs and classes, set TYPE_NAME, too.
(determine_class): Remove.
(read_partial_die): Ignore DW_AT_MIPS_linkage_name for all languages
except Ada.
(new_symbol): Unconditionally call dwarf2_name.
Compute the "linkage name" using dwarf2_physname.
Use dwarf2_name instead of dwarf2_full_name for enumerator DIEs.
When determining to scan for anonymous C++ namespaces, ignore
the linkage name.
(dwarf2_physname): New function.
(dwarf2_full_name): Move content to new function and call
that.
(dwarf2_compute_name): "New" function.
(_initialize_dwarf2_read): Initialize die_list.
* gnu-v3-eabi.c (gnu_v3_find_method_in): Remove unused variable
physname.
(gnu_v3_print_method_ptr): Use the physname for virtual methods
without a demangled name.
Print out type information for non-virtual methods.
* linespec.c (decode_line_1): Force ANY string using "::" (or
"." for java) to use decode_compound, and clean up any stray quoting.
If we found a file symtab, re-evaluate whether the remainder is_quoted.
(decode_compound): Stop consuming at an open parenthesis.
Keep template parameters.
Keep any overload information.
Keep keywords like "const".
Remove paren_pointer.
Move is_quoted check from set_flags to here.
Remove #if 0 code from 2000. Ten years is long enough.
(find_method): Before comparing symbol names, canonicalize the string
from the user.
If a specific overload is requested, find it. Otherwise throw an error.
(find_method_overload_end): New function.
(set_flags): Remove.
(decode_compound): Assume that parentheses are matched.
It's a lot easier.
* symtab.c (symbol_find_demangled_name): Add DMGL_VERBOSE flag
to cplus_demangle.
* linespec.c (decode_line_1): Keep important keywords like
"const" and "volatile".
* symtab.h (SYMBOL_CPLUS_DEMANGLED_NAME): Remove.
* typeprint.h (c_type_print_args): Add declaration.
* ui-file.c (do_ui_file_obsavestring): New function.
(ui_file_obsavestring): New function.
* ui-file.h (ui_file_obsavestring): Add declaration.
* valops.c (find_overload_match): Resolve the object to
a non-pointer type.
If the object is a data member, search the object for the member
and return with staticp set.
Use SYMBOL_NATURAL_NAME instead of SYMBOL_CPLUS_DEMANGLED_NAME.
Do not attempt to extract a function name from non-function types.
If the extracted function name and the original name are the same,
we don't have a C++ method.
From Jan Kratochvil <jan.kratochvil@redhat.com>:
* dwarf2read.c (new_symbol <DW_TAG_enumerator>): Call dwarf2_full_name.
* ada-lang.c (ada_lookup_symbol): Remove linkage_name parameters
and arguments from symbol lookups.
* ax-gdb.c (gen_expr): Likewise.
* cp-namespace.c (cp_lookup_symbol_nonlocal, lookup_namespace_scope,
cp_lookup_symbol_namespace, lookup_symbol_file, lookup_nested_type,
lookup_possible_namespace_symbol): Likewise.
* cp-support.c (read_in_psymtabs): Likewise.
* cp-support.h (cp_lookup_symbol_nonlocal): Likewise.
* language.h (la_lookup_symbol_nonlocal): Likewise.
* scm-valprint.c (scm_inferior_print): Likewise.
* solib-darwin.c (darwin_relocate_section_addresses): Likewise.
* solib-svr.c (elf_lookup_lib): Likewise.
* solib.c (show_auto_solib_add): Likewise.
* solist.h (lookup_lib_global, solib_global_lookup): Likewise.
* symmisc.c (maintenance_check_symtabs): Likewise.
* symtab.c (lookup_symbol_in_language, lookup_symbol_aux,
lookup_symbol_aux_local, lookup_symbol_aux_block,
lookup_symbol_from_objfile, lookup_symbol_aux_symtabs,
lookup_symbol_aux_psymtabs,basic_lookup_symbol_nonlocal,
lookup_symbol_static, lookup_symbol_global, symbol_matches_domain,
basic_lookup_transparent_type, find_main_psymtab,
lookup_block_symbol): Likewise.
* symtab.h (basic_lookp_symbol_nonlocal, lookup_symbol_static,
lookup_symbol_global, lookup_symbol_aux_block,
lookup_symbol_partial_symbol, lookup_block_symbol,
lookup_global_symbol, value_maybe_namespace_elt): Likewise.
solib_symbols_extension is set in the target gdbarch.
* arm-symbian-tdep.c (arm_symbian_init_abi): Set
solib_symbols_extension to "sym".
* gdbarch.sh (solib_symbols_extension): New variable.
(pstring): New function.
* gdbarch.h, gdbarch.c: Regenerate.
(MON_ROCKHOPPER): New mips_monitor_type.
(read_hex_value): New function.
(mips_request): Send 8-byte values with a 'T' packet. Read the
packet argument as a string and use read_hex_value to parse it.
(mips_exit_debug): Wait for response when using MON_ROCKHOPPER.
(rockhopper_open): New function.
(mips_wait): Read the PC, FP and SP fields as strings. Use
read_hex_value to parse them and mips_set_register to commit them.
(mips_set_register): New function.
(mips_fetch_registers): Do not cast register value to "unsigned"
when reading a MON_ROCKHOPPER 't' packet. Use mips_set_register.
(mips_store_registers): Use a 'T' packet to set registers when
using MON_ROCKHOPPER.
(pmon_end_download): Don't run initEther if using MON_ROCKHOPPER
and expect the total to be printed before the entry address.
(_initialize_remote_mips): Initialize and add rockhopper_ops.
Change return value to int. Store value fetched in location
addressed by `val'. Use function's return value as success
or failure indicator. Adjust all callers.
* i386-tdep.c (i386_record_lea_modrm_addr): Rename local variables
tmpu8, tmpi16, tmpi32, tmpulongest to addr8, addr16, addr32, addr64.
(i386_record_push): Rename local tmpulongest to addr.
(i386_process_record): Rename local tmpulongest to addr.
Define helper macros to reduce ifdefs in code.
(get_module_name): Use cygwin_buf_t for buffer and __PMAX for buffer size.
Call unadorned GetModuleFileNameEx rather than GetModuleFileNameEx*.
(windows_make_so): Use __PMAX to denote maximum buffer size and cygwin_buf_t
for buffer type. Use GetSystemDirectory{W,A} as appropriate.
(get_image_name): Use __PMAX to denote maximum buffer size.
(handle_load_dll): Likewise.
(windows_pid_to_exec_file): Likewise.
(windows_create_inferior): Add many accommodations for older Cygwin and
non-Cygwin.
(bad_GetModuleFileNameExW): Control inclusion of this function based on
__USEWIDE conditional.
(bad_GetModuleFileNameExA): Likewise.
(_initialize_loadable): Just use real function names without the dyn_ part
since they are defined earlier.
(remote_mips_ptid): Declare.
(mips_error): Only mourn the inferior when inferior_ptid is non-null.
(common_open): Set inferior_ptid, add it as an inferior, and
as a thread too. Delete FIXME comment regarding start_remote().
(mips_close): Invoke generic_mourn_inferior().
(mips_kill): Make sure that target_mourn_inferior is invoked.
(mips_mourn_inferior): Don't invoke generic_mourn_inferior, as
it's now invoked from mips_close().
(mips_load): Don't null out inferior_ptid. Don't call
clear_symtab_users().
(mips_thread_alive, mips_pid_to_str): New functions.
(_initialize_remote_mips): Initialize remote_mips_ptid. Initialize
to_thread_alive and to_pid_to_str operations.
* arm-tdep.c (arm_pc_is_thumb): Add heuristic that tries to get
the state right when single stepping.
(arm_get_next_pc_raw, thumb_get_next_pc_raw): New functions.
Get the next PC along with the instruction state.
(thumb_get_next_pc): Remove.
(arm_get_next_pc): Modified to use arm_get_next_pc_raw.
* remote.c (remote_download_tracepoint): Iterate over locations.
* tracepoint.c (validate_actionline): Ditto.
(encode_actions): Add location argument.
(trace_dump_command): Check all locations to see if stepping
frame.
(append_composite_type_field_aligned): Use the new function.
* gdbtypes.h (append_composite_type_field_raw): Declare.
* target-descriptions.c (struct tdesc_type_field): Add start and end.
(struct tdesc_type_flag): New type.
(struct tdesc_type): Add TDESC_TYPE_STRUCT and TDESC_TYPE_FLAGS to
kind. Add size to u.u. Add u.f for flags.
(tdesc_gdb_type): Handle TDESC_TYPE_STRUCT and TDESC_TYPE_FLAGS.
(tdesc_free_type): Likewise.
(tdesc_create_struct, tdesc_set_struct_size, tdesc_create_flags): New.
(tdesc_add_field): Handle TDESC_TYPE_STRUCT.
(tdesc_add_bitfield, tdesc_add_flag): New.
* target-descriptions.h (tdesc_create_struct, tdesc_set_struct_size)
(tdesc_create_flags, tdesc_add_bitfield, tdesc_add_flag): Declare.
* xml-tdesc.c (struct tdesc_parsing_data): Rename current_union to
current_type. Add current_type_size and current_type_is_flags.
(tdesc_start_union): Clear the new fields.
(tdesc_start_struct, tdesc_start_flags): New.
(tdesc_start_field): Handle struct fields, including bitfields.
(field_attributes): Make type optional. Add start and end.
(union_children): Rename to struct_union_children.
(union_attributes): Rename to struct_union_attributes. Add optional
size.
(flags_attributes): New.
(feature_children): Add struct and flags.
* features/gdb-target.dtd: Add flags and struct to features.
Make field type optional. Add field start and end.
doc/
* gdb.texinfo (Types): Describe <struct> and <flags>.
testsuite/
* gdb.xml/extra-regs.xml: Add struct1, struct2, and flags
types. Add structreg, bitfields, and flags registers.
* gdb.xml/tdesc-regs.exp: Test structreg and bitfields
registers.
cygwin_conv_path API rather than the deprecated
cygwin_conv_to_full_posix_path.
* windows-nat.c:
(GetModuleFileNameExA): Undefine for Cygwin.
(GetModuleFileNameExW): Define for Cygwin.
(get_module_name): Change size of pathbuf to PATH_MAX for Cygwin.
Call GetModuleFileNameExW and convert path to POSIX using
cygwin_conv_path.
(windows_make_so): Always define p. Drop unused variable m.
Don't use Win32 functions to check file existance, rather use
access on Cygwin. Fetch system directory using GetSystemDirectoryW.
Use canonicalize_file_name to get full path.
(get_image_name): Use wcstombs, rather than WideCharToMultiByte
to convert Unicode pathname to multibyte on Cygwin. Otherwise,
use correct target buffer size in call to WideCharToMultiByte.
(handle_load_dll): Change size of dll_buf to PATH_MAX for Cygwin.
(windows_pid_to_exec_file): Change size of path to PATH_MAX for Cygwin.
(windows_create_inferior): Convert all paths and arguments to wchar_t
and use CreateProcessW on Cygwin.
(_initialize_windows_nat): Disable DOS-style path warning on Cygwin.
(bad_GetModuleFileNameExA): Undefine for Cygwin.
(bad_GetModuleFileNameExW): Define for Cygwin.
(_initialize_loadable): Load GetModuleFileNameExW into
dyn_GetModuleFileNameExW on Cygwin. Don't load ANSI function on Cygwin.
PR python/11036
* python/py-frame.c (frapy_read_var): Add block argument and logic
to cope with user provided blocks.
2010-02-28 Phil Muldoon <pmuldoon@redhat.com>
* gdb.texinfo (Frames In Python): Add block parameter and
description to read_var text.
2010-02-28 Phil Muldoon <pmuldoon@redhat.com>
* gdb.python/py-frame.exp: Add read_var block tests.
* gdb.python/py-frame.c (block): New function.
* infcall.c (call_function_by_hand): Remove gdb_assert on sp and old_sp.
New comment.
gdb/testsuite/
* gdb.base/callfuncs.exp: New tests for $spval 0 and -1. Remove return.
add ADDR_SIZE member.
(allocate_piece_closure): Update.
(copy_pieced_value_closure): Likewise.
(dwarf2_evaluate_loc_desc): Likewise.
(read_pieced_value): Use DWARF address size instead of
GDB's gdbarch_addr_bit as size of values on the DWARF stack.
Tom Tromey <tromey@redhat.com>
* python/py-type.c (typy_lookup_typename): Add in block argument.
If provided restrict lookup to specified blocks.
(gdbpy_lookup_type): Likewise.
(typy_lookup_type): Likewise.
2010-02-26 Phil Muldoon <pmuldoon@redhat.com>
Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Types In Python): Describe block argument in
template_argument and gdb.lookup_type.
2010-02-24 David S. Miller <davem@davemloft.net>
* gdb_ptrace.h (PT_SYSCALL): If PTRACE_SYSCALL is available, use it.
* syscalls/sparc-linux.xml: New.
* syscalls/sparc64-linux.xml: New.
* Makefile.in (XML_SYSCALL_FILES): Add new syscall XML files.
* sparc-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC32): Define.
(sparc32_linux_get_syscall_number): New function.
(sparc32_linux_init_abi): Set syscall XML file name and hook up
syscall number fetcher.
* sparc64-linux-tdep.c (XML_SYSCALL_FILENAME_SPARC64): Define.
(sparc64_linux_get_syscall_number): New function.
(sparc64_linux_init_abi): Set syscall XML file name and hook up
syscall number fetcher.
* breakpoint.c (clear_syscall_counts): Take struct inferior*.
* inferior.c (add_inferior_silent): Notify inferior_added
observer.
(delete_inferior_1): Notify inferior_removed observer.
(exit_inferior_1): Pass inferior, not pid, to observer.
(inferior_appeared): Likewise.
(add_inferior_with_spaces): New.
(add_inferior_command): Use the above.
* inferior.h (delete_inferior_1, add_inferior_with_spaces):
Declare.
* inflow.c (inflow_inferior_exit): Likewise.
* jit.c (jit_inferior_exit_hook): Likewise.
* mi/mi-cmds.c (mi_cmds): Register add-inferior and
remove-inferior.
* mi/mi-cmds.h (mi_cmd_add_inferior, mi_cmd_remove_inferior): New.
* mi/mi-interp.c (mi_inferior_added, mi_inferior_removed): New.
(report_initial_inferior): New.
(mi_inferior_removed): Register the above. Make sure
inferior_added observer is called on the first inferior.
(mi_new_thread, mi_thread_exit): Thread group is now identified by
inferior number, not pid.
(mi_solib_loaded, mi_solib_unloaded): Report which inferiors are
affected.
* mi/mi-main.c (current_context): New.
(proceed_thread_callback): Use typed closure.
Proceed everything if pid is 0. Most implementation split into
(proceed_thread): ... this.
(run_one_inferior): New.
(mi_cmd_exec_continue, mi_cmd_exec_interrupt, mi_cmd_exec_run):
Adjust for multiexec behaviour.
(mi_cmd_add_inferior, mi_cmd_remove_inferior): New.
(mi_cmd_execute): Handle the 'thread-group' option here.
Do some extra checks.
* mi-parse.c (mi_parse): Handle the --all and --thread-group
options.
* mi-parse.h (struct mi_parse): New fields all and thread_group.
(cleanup_restore_current_traceframe): Declare.
* tracepoint.c (set_traceframe_number): New.
(struct current_traceframe_cleanup): New.
(do_restore_current_traceframe_cleanup)
(restore_current_traceframe_cleanup_dtor)
(make_cleanup_restore_current_traceframe): New.
* infrun.c: Include tracepoint.h.
(fetch_inferior_event): Switch out and in of tfind mode.
PR9605
gdb/
* breakpoint.c (insert_bp_location): If inserting the read
watchpoint failed, fallback to an access watchpoint.
(bpstat_check_watchpoint): Stop for read watchpoint triggers even
if the value changed, if not watching the same memory for writes.
(watchpoint_locations_match): Add comment.
(update_global_location_list): Copy the location's watchpoint type.
* i386-nat.c (i386_length_and_rw_bits): It's an internal error to
handle read watchpoints here.
(i386_insert_watchpoint): Read watchpoints aren't supported.
* remote.c (remote_insert_watchpoint): Return 1 for unsupported
packets.
* target.h (target_insert_watchpoint): Update description.
2010-02-22 Pedro Alves <pedro@codesourcery.com>
PR9605
gdbserver/
* i386-low.c (i386_length_and_rw_bits): Throw a fatal error if
handing a read watchpoint.
(i386_low_insert_watchpoint): Read watchpoints aren't supported.
2010-02-22 Pedro Alves <pedro@codesourcery.com>
PR9605
gdb/testsuite/
* gdb.base/watch-read.c, gdb.base/watch-read.exp: New files.
* symfile.c (addr_info_make_relative): Extend comment. Move SECT to
a more inner block. Initialize ADDR by LOWER_OFFSET only if it was
found by bfd_get_section_by_name.
* symfile.h (struct section_addr_info) <sectindex>: New comment.
* linespec.c (decode_line_1): Handle FILE:FUNCTION even if
FUNCTION contains parentheses. Improve removal of a trailing
single quote.
gdb/testsuite/
* gdb.base/list.exp (test_list_filename_and_function): Add test
with single quotes.
* gdb.cp/overload.cc (intToChar): Rewrite onto one line for easy
matching.
* gdb.cp/overload.exp: Add tests with filename, function, and quotes.
Add KFAIL'd tests for PR gdb/11289.
* mi/mi-main.c: Added the --reverse flag to the following MI
commands: exec-continue, exec-finish, exec-next, exec-step,
exec-next-instruction, exec-step-instruction. This is to
support reverse execution over the MI interface to gdb.
* gdb.texinfo (Using the Collected Data): Specify that the address
range of `tfind outsize' is exclusive, and that the address range
of `tfind range' is inclusive.
(Tracepoint Packets): Specify that the address range of
`QTFrame:range' is inclusive, and that the address range of
`QTFrame:outside' is exclusive
gdb/
* tracepoint.c (_initialize_tracepoint): Specify that the address
range of `tfind outsize' is exclusive, and that the address range
of `tfind range' is inclusive, in the commands' help strings.
Return false if no breakpoint was created, true otherwise.
(trace_command): Don't set the tracepoint count if no tracepoint
was created.
(ftrace_command): Ditto.
(create_tracepoint_from_upload): Bail out if the tracepoint wasn't
created in the breakpoints table.
whitespace character after a dot in comment.
(mi_cmd_stack_list_arguments, mi_cmd_stack_list_variables):
Likewise.
(list_args_or_locals): For the 'all' (that is
-stack-list-variables) case, always output list of tuples.
Output 'arg' field if variable is argument.
* machoread.c (macho_symfile_relocate): New function.
(macho_sym_fns): Use macho_symfile_relocate instead of
default_symfile_relocate.
(macho_oso_data): New type.
(current_oso): New variable.
(macho_add_oso_symfile): Do not compute section_addr_info, but
instead set vma of sections.
Do not set SYMFILE_VERBOSE to call symbol_file_add_from_bfd.
Set and clear current_oso.
* ada-lang.c (ada_evaluate_subexp) [OP_VAR_VALUE]: When noside is
EVAL_AVOID_SIDE_EFFECTS, also handle the case when type is a
reference to a tagged type.
* valarith.c (value_ptrdiff): Added a test for a zero type length,
warn if found, and assume length = 1.
* gdb.cp/pr10728-x.h: New file.
* gdb.cp/pr10728-x.cc: New file.
* gdb.cp/pr10728-y.cc: New file.
* gdb.cp/pr10728.exp: New file.
* gdb.cp/Makefile.in (EXECUTABLES): Add pr10728
* cp-valprint.c (cp_print_value_fields) Fix use of obstacks.
cp_print_static_field) Fix use of obstacks.
* gdb.cp/pr9067.exp: New
* gdb.cp/pr9067.cc: New
* gdb.cp/Makefile.in (EXECUTABLES): Add pr9067
resumed LWPs as resumed.
(linux_nat_wait_1): If there's no resumed LWP in the set of LWPs
we're waiting for, bail out with TARGET_WAITKIND_IGNORE, instead
of throwing an internal error. If an LWP of a process we're not
waiting for reports a signal, don't force collecting a SIGSTOP,
and if it was breakpoint hit in non-stop mode, cancel it. Don't
go through all LWPs cancelling breakpoints in non-stop mode.
(resume_stopped_resumed_lwps): New.
(linux_nat_wait): Use it.
PR c++/7935:
* gdb.cp/namespace-using.exp: Removed kfail; bug has been fixed.
2010-02-05 Sami Wagiaalla <swagiaal@redhat.com>
PR c++/7935:
* cp-support.h: Added char* alias element to using_direct data
struct.
(cp_add_using): Added char* alias argument.
(cp_add_using_directive): Ditto.
* cp-namespace.c: Updated with the above changes.
(cp_lookup_symbol_imports): Check for aliases.
* dwarf2read.c (read_import_statement): Figure out local alias
for the import and pass it on to cp_add_using.
(read_namespace): Pass alias argument to cp_add_using.
* defs.h (gdb_bfd_errmsg): New extern.
* exec.c (exec_file_attach): Change bfd_errmsg to
gdb_bfd_errmsg.
* utils.c (AMBIGUOUS_MESS1): New macro.
(AMBIGUOUS_MESS2): New macro.
(gdb_bfd_errmsg): New function.
* valops.c (search_struct_field): Account for
value_embedded_offset. Fix check for virtual base past the end of
the object. Use value_copy when making a slice of the value.
gdb/testsuite
* gdb.cp/virtbase.exp: Make test case names unique.
2010-02-04 H.J. Lu <hongjiu.lu@intel.com>
* target-descriptions.c: Include "osabi.h".
(maint_print_c_tdesc_cmd): Generate set_tdesc_osabi for valid
OSABI.
* solib-svr4.c (scan_dyntag): New variable dyn_addr. Replace gdb_assert
by a conditional setting DYN_ADDR. Use DYN_ADDR.
* config/djgpp/fnchange.lst: Add translations for
symbol-without-target_section.exp and symbol-without-target_section.c.
gdb/testsuite/
* gdb.base/symbol-without-target_section.exp,
gdb.base/symbol-without-target_section.c: New.
arm_pc_is_thumb.
(arm_pc_is_thumb): Use arm_find_mapping_symbol.
(extend_buffer_earlier): New function.
(MAX_IT_BLOCK_PREFIX, IT_SCAN_THRESHOLD): New constants.
(arm_adjust_breakpoint_address): New function.
(arm_gdbarch_init): Register arm_adjust_breakpoint_address.
testsuite/
* gdb.arch/thumb2-it.S (it_breakpoints): New function.
* gdb.arch/thumb2-it.exp (test_it_break): New function.
(Top level): Call it.
(arm_linux_thumb2_le_breakpoint): New constants.
(arm_linux_init_abi): Set thumb2_breakpoint and
thumb2_breakpoint_size.
* arm-tdep.c (thumb_insn_size, thumb_advance_itstate): New functions.
(thumb_get_next_pc): Add a comment. Rename IT to ITSTATE.
Implement support for single stepping through IT blocks if
a 32-bit Thumb breakpoint instruction is available.
(arm_breakpoint_from_pc): If a 32-bit Thumb breakpoint instruction
is available, use it when needed.
(arm_remote_breakpoint_from_pc): New function.
(arm_gdbarch_init): Register arm_remote_breakpoint_from_pc.
* arm-tdep.h (struct gdbarch_tdep): Correct thumb_breakpoint
comment. Add thumb2_breakpoint and thumb2_breakpoint_size.
gdbserver/
* linux-arm-low.c (thumb_breakpoint_len): Delete.
(thumb2_breakpoint): New.
(arm_breakpoint_at): Check for Thumb-2 breakpoints.
testsuite/
* gdb.arch/thumb2-it.S, gdb.arch/thumb2-it.exp: New files.
match a breakpoint.
(handle_inferior_event): Move the check for unusual breakpoint
signals earlier.
gdbserver/
* linux-low.c (get_stop_pc): Check for SIGTRAP.
(linux_wait_for_event_1): Handle SIGILL and SIGSEGV as possible
breakpoints.
