Mercurial > hg > xemacs-beta
view src/backtrace.h @ 4952:19a72041c5ed
Mule-izing, various fixes related to char * arguments
-------------------- ChangeLog entries follow: --------------------
modules/ChangeLog addition:
2010-01-26 Ben Wing <ben@xemacs.org>
* postgresql/postgresql.c:
* postgresql/postgresql.c (CHECK_LIVE_CONNECTION):
* postgresql/postgresql.c (print_pgresult):
* postgresql/postgresql.c (Fpq_conn_defaults):
* postgresql/postgresql.c (Fpq_connectdb):
* postgresql/postgresql.c (Fpq_connect_start):
* postgresql/postgresql.c (Fpq_result_status):
* postgresql/postgresql.c (Fpq_res_status):
Mule-ize large parts of it.
2010-01-26 Ben Wing <ben@xemacs.org>
* ldap/eldap.c (print_ldap):
* ldap/eldap.c (allocate_ldap):
Use write_ascstring().
src/ChangeLog addition:
2010-01-26 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (build_ascstring):
* alloc.c (build_msg_cistring):
* alloc.c (staticpro_1):
* alloc.c (staticpro_name):
* alloc.c (staticpro_nodump_1):
* alloc.c (staticpro_nodump_name):
* alloc.c (unstaticpro_nodump_1):
* alloc.c (mcpro_1):
* alloc.c (mcpro_name):
* alloc.c (object_memory_usage_stats):
* alloc.c (common_init_alloc_early):
* alloc.c (init_alloc_once_early):
* buffer.c (print_buffer):
* buffer.c (vars_of_buffer):
* buffer.c (common_init_complex_vars_of_buffer):
* buffer.c (init_initial_directory):
* bytecode.c (invalid_byte_code):
* bytecode.c (print_compiled_function):
* bytecode.c (mark_compiled_function):
* chartab.c (print_table_entry):
* chartab.c (print_char_table):
* config.h.in:
* console-gtk.c:
* console-gtk.c (gtk_device_to_console_connection):
* console-gtk.c (gtk_semi_canonicalize_console_connection):
* console-gtk.c (gtk_canonicalize_console_connection):
* console-gtk.c (gtk_semi_canonicalize_device_connection):
* console-gtk.c (gtk_canonicalize_device_connection):
* console-stream.c (stream_init_frame_1):
* console-stream.c (vars_of_console_stream):
* console-stream.c (init_console_stream):
* console-x.c (x_semi_canonicalize_console_connection):
* console-x.c (x_semi_canonicalize_device_connection):
* console-x.c (x_canonicalize_device_connection):
* console-x.h:
* data.c (eq_with_ebola_notice):
* data.c (Fsubr_interactive):
* data.c (Fnumber_to_string):
* data.c (digit_to_number):
* device-gtk.c (gtk_init_device):
* device-msw.c (print_devmode):
* device-x.c (x_event_name):
* dialog-msw.c (handle_directory_dialog_box):
* dialog-msw.c (handle_file_dialog_box):
* dialog-msw.c (vars_of_dialog_mswindows):
* doc.c (weird_doc):
* doc.c (Fsnarf_documentation):
* doc.c (vars_of_doc):
* dumper.c (pdump):
* dynarr.c:
* dynarr.c (Dynarr_realloc):
* editfns.c (Fuser_real_login_name):
* editfns.c (get_home_directory):
* elhash.c (print_hash_table_data):
* elhash.c (print_hash_table):
* emacs.c (main_1):
* emacs.c (vars_of_emacs):
* emodules.c:
* emodules.c (_emodules_list):
* emodules.c (Fload_module):
* emodules.c (Funload_module):
* emodules.c (Flist_modules):
* emodules.c (find_make_module):
* emodules.c (attempt_module_delete):
* emodules.c (emodules_load):
* emodules.c (emodules_doc_subr):
* emodules.c (emodules_doc_sym):
* emodules.c (syms_of_module):
* emodules.c (vars_of_module):
* emodules.h:
* eval.c (print_subr):
* eval.c (signal_call_debugger):
* eval.c (build_error_data):
* eval.c (signal_error):
* eval.c (maybe_signal_error):
* eval.c (signal_continuable_error):
* eval.c (maybe_signal_continuable_error):
* eval.c (signal_error_2):
* eval.c (maybe_signal_error_2):
* eval.c (signal_continuable_error_2):
* eval.c (maybe_signal_continuable_error_2):
* eval.c (signal_ferror):
* eval.c (maybe_signal_ferror):
* eval.c (signal_continuable_ferror):
* eval.c (maybe_signal_continuable_ferror):
* eval.c (signal_ferror_with_frob):
* eval.c (maybe_signal_ferror_with_frob):
* eval.c (signal_continuable_ferror_with_frob):
* eval.c (maybe_signal_continuable_ferror_with_frob):
* eval.c (syntax_error):
* eval.c (syntax_error_2):
* eval.c (maybe_syntax_error):
* eval.c (sferror):
* eval.c (sferror_2):
* eval.c (maybe_sferror):
* eval.c (invalid_argument):
* eval.c (invalid_argument_2):
* eval.c (maybe_invalid_argument):
* eval.c (invalid_constant):
* eval.c (invalid_constant_2):
* eval.c (maybe_invalid_constant):
* eval.c (invalid_operation):
* eval.c (invalid_operation_2):
* eval.c (maybe_invalid_operation):
* eval.c (invalid_change):
* eval.c (invalid_change_2):
* eval.c (maybe_invalid_change):
* eval.c (invalid_state):
* eval.c (invalid_state_2):
* eval.c (maybe_invalid_state):
* eval.c (wtaerror):
* eval.c (stack_overflow):
* eval.c (out_of_memory):
* eval.c (print_multiple_value):
* eval.c (issue_call_trapping_problems_warning):
* eval.c (backtrace_specials):
* eval.c (backtrace_unevalled_args):
* eval.c (Fbacktrace):
* eval.c (warn_when_safe):
* event-Xt.c (modwarn):
* event-Xt.c (modbarf):
* event-Xt.c (check_modifier):
* event-Xt.c (store_modifier):
* event-Xt.c (emacs_Xt_format_magic_event):
* event-Xt.c (describe_event):
* event-gtk.c (dragndrop_data_received):
* event-gtk.c (store_modifier):
* event-gtk.c (gtk_reset_modifier_mapping):
* event-msw.c (dde_eval_string):
* event-msw.c (Fdde_alloc_advise_item):
* event-msw.c (mswindows_dde_callback):
* event-msw.c (FROB):
* event-msw.c (emacs_mswindows_format_magic_event):
* event-stream.c (external_debugging_print_event):
* event-stream.c (execute_help_form):
* event-stream.c (vars_of_event_stream):
* events.c (print_event_1):
* events.c (print_event):
* events.c (event_equal):
* extents.c (print_extent_1):
* extents.c (print_extent):
* extents.c (vars_of_extents):
* faces.c (print_face):
* faces.c (complex_vars_of_faces):
* file-coding.c:
* file-coding.c (print_coding_system):
* file-coding.c (print_coding_system_in_print_method):
* file-coding.c (default_query_method):
* file-coding.c (find_coding_system):
* file-coding.c (make_coding_system_1):
* file-coding.c (chain_print):
* file-coding.c (undecided_print):
* file-coding.c (gzip_print):
* file-coding.c (vars_of_file_coding):
* file-coding.c (complex_vars_of_file_coding):
* fileio.c:
* fileio.c (report_file_type_error):
* fileio.c (report_error_with_errno):
* fileio.c (report_file_error):
* fileio.c (barf_or_query_if_file_exists):
* fileio.c (vars_of_fileio):
* floatfns.c (matherr):
* fns.c (print_bit_vector):
* fns.c (Fmapconcat):
* fns.c (add_suffix_to_symbol):
* fns.c (add_prefix_to_symbol):
* frame-gtk.c:
* frame-gtk.c (Fgtk_window_id):
* frame-x.c (def):
* frame-x.c (x_cde_transfer_callback):
* frame.c:
* frame.c (Fmake_frame):
* gc.c (show_gc_cursor_and_message):
* gc.c (vars_of_gc):
* glyphs-eimage.c (png_instantiate):
* glyphs-eimage.c (tiff_instantiate):
* glyphs-gtk.c (gtk_print_image_instance):
* glyphs-msw.c (mswindows_print_image_instance):
* glyphs-x.c (x_print_image_instance):
* glyphs-x.c (update_widget_face):
* glyphs.c (make_string_from_file):
* glyphs.c (print_image_instance):
* glyphs.c (signal_image_error):
* glyphs.c (signal_image_error_2):
* glyphs.c (signal_double_image_error):
* glyphs.c (signal_double_image_error_2):
* glyphs.c (xbm_mask_file_munging):
* glyphs.c (pixmap_to_lisp_data):
* glyphs.h:
* gui.c (gui_item_display_flush_left):
* hpplay.c (player_error_internal):
* hpplay.c (myHandler):
* intl-win32.c:
* intl-win32.c (langcode_to_lang):
* intl-win32.c (sublangcode_to_lang):
* intl-win32.c (Fmswindows_get_locale_info):
* intl-win32.c (lcid_to_locale_mule_or_no):
* intl-win32.c (mswindows_multibyte_to_unicode_print):
* intl-win32.c (complex_vars_of_intl_win32):
* keymap.c:
* keymap.c (print_keymap):
* keymap.c (ensure_meta_prefix_char_keymapp):
* keymap.c (Fkey_description):
* keymap.c (Ftext_char_description):
* lisp.h:
* lisp.h (struct):
* lisp.h (DECLARE_INLINE_HEADER):
* lread.c (Fload_internal):
* lread.c (locate_file):
* lread.c (read_escape):
* lread.c (read_raw_string):
* lread.c (read1):
* lread.c (read_list):
* lread.c (read_compiled_function):
* lread.c (init_lread):
* lrecord.h:
* marker.c (print_marker):
* marker.c (marker_equal):
* menubar-msw.c (displayable_menu_item):
* menubar-x.c (command_builder_operate_menu_accelerator):
* menubar.c (vars_of_menubar):
* minibuf.c (reinit_complex_vars_of_minibuf):
* minibuf.c (complex_vars_of_minibuf):
* mule-charset.c (Fmake_charset):
* mule-charset.c (complex_vars_of_mule_charset):
* mule-coding.c (iso2022_print):
* mule-coding.c (fixed_width_query):
* number.c (bignum_print):
* number.c (ratio_print):
* number.c (bigfloat_print):
* number.c (bigfloat_finalize):
* objects-msw.c:
* objects-msw.c (mswindows_color_to_string):
* objects-msw.c (mswindows_color_list):
* objects-tty.c:
* objects-tty.c (tty_font_list):
* objects-tty.c (tty_find_charset_font):
* objects-xlike-inc.c (xft_find_charset_font):
* objects-xlike-inc.c (endif):
* print.c:
* print.c (write_istring):
* print.c (write_ascstring):
* print.c (Fterpri):
* print.c (Fprint):
* print.c (print_error_message):
* print.c (print_vector_internal):
* print.c (print_cons):
* print.c (print_string):
* print.c (printing_unreadable_object):
* print.c (print_internal):
* print.c (print_float):
* print.c (print_symbol):
* process-nt.c (mswindows_report_winsock_error):
* process-nt.c (nt_canonicalize_host_name):
* process-unix.c (unix_canonicalize_host_name):
* process.c (print_process):
* process.c (report_process_error):
* process.c (report_network_error):
* process.c (make_process_internal):
* process.c (Fstart_process_internal):
* process.c (status_message):
* process.c (putenv_internal):
* process.c (vars_of_process):
* process.h:
* profile.c (vars_of_profile):
* rangetab.c (print_range_table):
* realpath.c (vars_of_realpath):
* redisplay.c (vars_of_redisplay):
* search.c (wordify):
* search.c (Freplace_match):
* sheap.c (sheap_adjust_h):
* sound.c (report_sound_error):
* sound.c (Fplay_sound_file):
* specifier.c (print_specifier):
* symbols.c (Fsubr_name):
* symbols.c (do_symval_forwarding):
* symbols.c (set_default_buffer_slot_variable):
* symbols.c (set_default_console_slot_variable):
* symbols.c (store_symval_forwarding):
* symbols.c (default_value):
* symbols.c (defsymbol_massage_name_1):
* symbols.c (defsymbol_massage_name_nodump):
* symbols.c (defsymbol_massage_name):
* symbols.c (defsymbol_massage_multiword_predicate_nodump):
* symbols.c (defsymbol_massage_multiword_predicate):
* symbols.c (defsymbol_nodump):
* symbols.c (defsymbol):
* symbols.c (defkeyword):
* symbols.c (defkeyword_massage_name):
* symbols.c (check_module_subr):
* symbols.c (deferror_1):
* symbols.c (deferror):
* symbols.c (deferror_massage_name):
* symbols.c (deferror_massage_name_and_message):
* symbols.c (defvar_magic):
* symeval.h:
* symeval.h (DEFVAR_SYMVAL_FWD):
* sysdep.c:
* sysdep.c (init_system_name):
* sysdll.c:
* sysdll.c (MAYBE_PREPEND_UNDERSCORE):
* sysdll.c (dll_function):
* sysdll.c (dll_variable):
* sysdll.c (dll_error):
* sysdll.c (dll_open):
* sysdll.c (dll_close):
* sysdll.c (image_for_address):
* sysdll.c (my_find_image):
* sysdll.c (search_linked_libs):
* sysdll.h:
* sysfile.h:
* sysfile.h (DEFAULT_DIRECTORY_FALLBACK):
* syswindows.h:
* tests.c (DFC_CHECK_LENGTH):
* tests.c (DFC_CHECK_CONTENT):
* tests.c (Ftest_hash_tables):
* text.c (vars_of_text):
* text.h:
* tooltalk.c (tt_opnum_string):
* tooltalk.c (tt_message_arg_ival_string):
* tooltalk.c (Ftooltalk_default_procid):
* tooltalk.c (Ftooltalk_default_session):
* tooltalk.c (init_tooltalk):
* tooltalk.c (vars_of_tooltalk):
* ui-gtk.c (Fdll_load):
* ui-gtk.c (type_to_marshaller_type):
* ui-gtk.c (Fgtk_import_function_internal):
* ui-gtk.c (emacs_gtk_object_printer):
* ui-gtk.c (emacs_gtk_boxed_printer):
* unicode.c (unicode_to_ichar):
* unicode.c (unicode_print):
* unicode.c (unicode_query):
* unicode.c (vars_of_unicode):
* unicode.c (complex_vars_of_unicode):
* win32.c:
* win32.c (mswindows_report_process_error):
* window.c (print_window):
* xemacs.def.in.in:
BASIC IDEA: Further fixing up uses of char * and CIbyte *
to reflect their actual semantics; Mule-izing some code;
redoing of the not-yet-working code to handle message translation.
Clean up code to handle message-translation (not yet working).
Create separate versions of build_msg_string() for working with
Ibyte *, CIbyte *, and Ascbyte * arguments. Assert that Ascbyte *
arguments are pure-ASCII. Make build_msg_string() be the same
as build_msg_ascstring(). Create same three versions of GETTEXT()
and DEFER_GETTEXT(). Also create build_defer_string() and
variants for the equivalent of DEFER_GETTEXT() when building a
string. Remove old CGETTEXT(). Clean up code where GETTEXT(),
DEFER_GETTEXT(), build_msg_string(), etc. was being called and
introduce some new calls to build_msg_string(), etc. Remove
GETTEXT() from calls to weird_doc() -- we assume that the
message snarfer knows about weird_doc(). Remove uses of
DEFER_GETTEXT() from error messages in sysdep.c and instead use
special comments /* @@@begin-snarf@@@ */ and /* @@@end-snarf@@@ */
that the message snarfer presumably knows about.
Create build_ascstring() and use it in many instances in place
of build_string(). The purpose of having Ascbyte * variants is
to make the code more self-documenting in terms of what sort of
semantics is expected for char * strings. In fact in the process
of looking for uses of build_string(), much improperly Mule-ized
was discovered.
Mule-ize a lot of code as described in previous paragraph,
e.g. in sysdep.c.
Make the error functions take Ascbyte * strings and fix up a
couple of places where non-pure-ASCII strings were being passed in
(file-coding.c, mule-coding.c, unicode.c). (It's debatable whether
we really need to make the error functions work this way. It
helps catch places where code is written in a way that message
translation won't work, but we may well never implement message
translation.)
Make staticpro() and friends take Ascbyte * strings instead of
raw char * strings. Create a const_Ascbyte_ptr dynarr type
to describe what's held by staticpro_names[] and friends,
create pdump descriptions for const_Ascbyte_ptr dynarrs, and
use them in place of specially-crafted staticpro descriptions.
Mule-ize certain other functions (e.g. x_event_name) by correcting
raw use of char * to Ascbyte *, Rawbyte * or another such type,
and raw use of char[] buffers to another type (usually Ascbyte[]).
Change many uses of write_c_string() to write_msg_string(),
write_ascstring(), etc.
Mule-ize emodules.c, emodules.h, sysdll.h.
Fix some un-Mule-ized code in intl-win32.c.
A comment in event-Xt.c and the limitations of the message
snarfer (make-msgfile or whatever) is presumably incorrect --
it should be smart enough to handle function calls spread over
more than one line. Clean up code in event-Xt.c that was
written awkwardly for this reason.
In config.h.in, instead of NEED_ERROR_CHECK_TYPES_INLINES,
create a more general XEMACS_DEFS_NEEDS_INLINE_DECLS to
indicate when inlined functions need to be declared in
xemacs.defs.in.in, and make use of it in xemacs.defs.in.in.
We need to do this because postgresql.c now calls qxestrdup(),
which is an inline function.
Make nconc2() and other such functions MODULE_API and put
them in xemacs.defs.in.in since postgresql.c now uses them.
Clean up indentation in lread.c and a few other places.
In text.h, document ASSERT_ASCTEXT_ASCII() and
ASSERT_ASCTEXT_ASCII_LEN(), group together the stand-in
encodings and add some more for DLL symbols, function and
variable names, etc.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Tue, 26 Jan 2010 23:22:30 -0600 |
| parents | 989a7680c221 |
| children | 308d34e9f07d |
line wrap: on
line source
/* The lisp stack. Copyright (C) 1985, 1986, 1987, 1992, 1993 Free Software Foundation, Inc. Copyright (C) 2002, 2003 Ben Wing. This file is part of XEmacs. XEmacs is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. XEmacs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: FSF 19.30. Contained redundantly in various C files in FSFmacs. */ /* Authorship: FSF: Original version; a long time ago. XEmacs: split out of some C files. (For some obscure reason, a header file couldn't be used in FSF Emacs, but XEmacs doesn't have that problem.) Mly (probably) or JWZ: Some changes. */ #ifndef INCLUDED_backtrace_h_ #define INCLUDED_backtrace_h_ #include <setjmp.h> #ifdef ERROR_CHECK_CATCH /* you can use this if you are trying to debug corruption in the catchlist */ void check_catchlist_sanity (void); /* you can use this if you are trying to debug corruption in the specbind stack */ void check_specbind_stack_sanity (void); #else #define check_catchlist_sanity() #define check_specbind_stack_sanity() #endif /* These definitions are used in eval.c and alloc.c */ struct backtrace { struct backtrace *next; Lisp_Object *function; Lisp_Object *args; /* Points to vector of args. */ int nargs; /* Length of vector. If nargs is UNEVALLED, args points to slot holding list of unevalled args */ int pdlcount; /* specpdl_depth () when invoked */ char evalargs; /* Nonzero means call value of debugger when done with this operation. */ char debug_on_exit; /* All the rest is information for the use of the profiler. The only thing that eval.c does is set the first value to 0 so that it can be relied upon. */ /* ----------------------------------------------------------------- */ /* 0 = profiling not turned on when function called. Since profiling can be turned on and off dynamically, we can't always count on having info recorded when a function was called and need to take evasive action if necessary. 1 = profiling turned on but function not yet actually called. Lots of stuff can happen between when a function is pushed onto the backtrace list and when it's actually called (e.g. evalling its arguments, autoloading, etc.). For greater accuracy we don't treat the preamble stuff as part of the function itself. 2 = profiling turned on, function called. */ char function_being_called; /* The trick here is handling recursive functions and dealing with the dynamicity of in-profile/not-in-profile. I used to just use a bunch of hash tables for all info but that fails in the presence of recursive functions because they can modify values out from under you. The algorithm here is that we record the total_ticks and total_consing, as well as the current values of `total-timing' and `total-gc-usage' for the OBJ -- that's because recursive functions, which get called later and exit early, will go ahead and modify the `total-timing' and `total-gc-usage' for the fun, even though it's not "correct" because the outer function is still running. However, if we ask for profiling info at this point, at least we're getting SOME info. So ... On entry, we record these four values. On exit, we compute an offset from the recorded value to the current value and then store it into the appropriate hash table entry, using the recorded value in the entry rather than the actual one. (Inner recursive functions may have added their own values to the total-counts, and we want to subsume them, not add to them.) #### Also we need to go through the backtrace list during stop-profiling and record values, just like for unwind_to. */ EMACS_INT current_total_timing_val; EMACS_INT current_total_gc_usage_val; EMACS_UINT total_ticks_at_start; EMACS_UINT total_consing_at_start; }; /* This structure helps implement the `catch' and `throw' control structure. A struct catchtag contains all the information needed to restore the state of the interpreter after a non-local jump. (No information is stored concerning how to restore the state of the condition-handler list; this is handled implicitly through an unwind-protect. unwind-protects are on the specbind stack, which is reset to its proper value by `throw'. In the process of that, any intervening bindings are reset and unwind-protects called, which fixes up the condition-handler list. catchtag structures are chained together in the C calling stack; the `next' member points to the next outer catchtag. A call like (throw TAG VAL) searches for a catchtag whose `tag' member is TAG, and then unbinds to it. A value of Vcatch_everything_tag for the `tag' member of a catchtag is special and means "catch all throws, regardless of the tag". This is used internally by the C code. The `val' member is used to hold VAL while the stack is unwound; `val' is returned as the value of the catch form. The `actual_tag' member holds the value of TAG as passed to throw, so that it can be retrieved when catches with Vcatch_everything_tag are set up. All the other members are concerned with restoring the interpreter state. */ struct catchtag { Lisp_Object tag; /* Stores the actual tag used in `throw'; the same as TAG, unless TAG is Vcatch_everything_tag. */ Lisp_Object actual_tag; /* A backtrace prior to the throw, used with Vcatch_everything_tag. */ Lisp_Object backtrace; Lisp_Object val; struct catchtag *next; struct gcpro *gcpro; JMP_BUF jmp; struct backtrace *backlist; #if 0 /* FSFmacs */ /* FSF uses a separate handler stack to hold condition-cases, where we use Vcondition_handlers. We should switch to their system becaue it avoids the need to mess around with consing up stuff and then dangerously freeing it. See comment in condition_case_unwind(). */ struct handler *handlerlist; #endif int lisp_eval_depth; int pdlcount; #if 0 /* FSFmacs */ /* This is the equivalent of async_timer_suppress_count. We probably don't have to bother with this. */ int poll_suppress_count; #endif }; /* Dynamic-binding-o-rama */ /* Structure for recording Lisp call stack for backtrace purposes. */ /* The special binding stack holds the outer values of variables while they are bound by a function application or a let form, stores the code to be executed for Lisp unwind-protect forms, and stores the C functions to be called for record_unwind_protect. If func is non-zero, undoing this binding applies func to old_value; This implements record_unwind_protect. If func is zero and symbol is nil, undoing this binding evaluates the list of forms in old_value; this implements Lisp's unwind-protect form. Otherwise, undoing this binding stores old_value as symbol's value; this undoes the bindings made by a let form or function call. */ struct specbinding { Lisp_Object symbol; Lisp_Object old_value; Lisp_Object (*func) (Lisp_Object); /* for unwind-protect */ }; #if 0 /* FSFmacs */ /* #### */ /* Everything needed to describe an active condition case. */ struct handler { /* The handler clauses and variable from the condition-case form. */ Lisp_Object handler; Lisp_Object var; /* Fsignal stores here the condition-case clause that applies, and Fcondition_case thus knows which clause to run. */ Lisp_Object chosen_clause; /* Used to effect the longjmp() out to the handler. */ struct catchtag *tag; /* The next enclosing handler. */ struct handler *next; }; extern struct handler *handlerlist; #endif /* These are extern because GC needs to mark them */ extern struct specbinding *specpdl; extern struct specbinding *specpdl_ptr; extern struct catchtag *catchlist; extern struct backtrace *backtrace_list; /* Most callers should simply use specbind() and unbind_to_1(), but if speed is REALLY IMPORTANT, you can use the faster macros below */ void specbind_magic (Lisp_Object, Lisp_Object); void grow_specpdl (EMACS_INT reserved); void unbind_to_hairy (int); extern int specpdl_size; /* Inline version of specbind(). Use this instead of specbind() if speed is sufficiently important to save the overhead of even a single function call. */ #define SPECBIND(symbol_object, value_object) do { \ Lisp_Object SB_symbol = (symbol_object); \ Lisp_Object SB_newval = (value_object); \ Lisp_Object SB_oldval; \ Lisp_Symbol *SB_sym; \ \ SPECPDL_RESERVE (1); \ \ CHECK_SYMBOL (SB_symbol); \ SB_sym = XSYMBOL (SB_symbol); \ SB_oldval = SB_sym->value; \ \ if (!SYMBOL_VALUE_MAGIC_P (SB_oldval) || UNBOUNDP (SB_oldval)) \ { \ /* #### the following test will go away when we have a constant \ symbol magic object */ \ if (EQ (SB_symbol, Qnil) || \ EQ (SB_symbol, Qt) || \ SYMBOL_IS_KEYWORD (SB_symbol)) \ reject_constant_symbols (SB_symbol, SB_newval, 0, \ UNBOUNDP (SB_newval) ? \ Qmakunbound : Qset); \ \ specpdl_ptr->symbol = SB_symbol; \ specpdl_ptr->old_value = SB_oldval; \ specpdl_ptr->func = 0; \ specpdl_ptr++; \ specpdl_depth_counter++; \ \ SB_sym->value = (SB_newval); \ } \ else \ specbind_magic (SB_symbol, SB_newval); \ check_specbind_stack_sanity (); \ } while (0) /* An even faster, but less safe inline version of specbind(). Caller guarantees that: - SYMBOL is a non-constant symbol (i.e. not Qnil, Qt, or keyword). - specpdl_depth_counter >= specpdl_size. Else we crash. */ #define SPECBIND_FAST_UNSAFE(symbol_object, value_object) do { \ Lisp_Object SFU_symbol = (symbol_object); \ Lisp_Object SFU_newval = (value_object); \ Lisp_Symbol *SFU_sym = XSYMBOL (SFU_symbol); \ Lisp_Object SFU_oldval = SFU_sym->value; \ /* Most of the time, will be previously unbound. #### With a bit of \ rearranging, this could be reduced to only one check. */ \ if (UNBOUNDP (SFU_oldval) || !SYMBOL_VALUE_MAGIC_P (SFU_oldval)) \ { \ specpdl_ptr->symbol = SFU_symbol; \ specpdl_ptr->old_value = SFU_oldval; \ specpdl_ptr->func = 0; \ specpdl_ptr++; \ specpdl_depth_counter++; \ \ SFU_sym->value = (SFU_newval); \ } \ else \ specbind_magic (SFU_symbol, SFU_newval); \ check_specbind_stack_sanity (); \ } while (0) /* Request enough room for SIZE future entries on special binding stack */ #define SPECPDL_RESERVE(size) do { \ EMACS_INT SR_size = (size); \ if (specpdl_depth() + SR_size >= specpdl_size) \ grow_specpdl (SR_size); \ } while (0) /* Inline version of unbind_to_1(). [[Use this instead of unbind_to_1() if speed is sufficiently important to save the overhead of even a single function call.]] This is bogus pseudo-optimization. --ben Most of the time, unbind_to_1() is called only on ordinary variables, so optimize for that. */ #define UNBIND_TO_GCPRO(count, value) do { \ int UNBIND_TO_count = (count); \ while (specpdl_depth_counter != UNBIND_TO_count) \ { \ Lisp_Symbol *sym; \ --specpdl_ptr; \ --specpdl_depth_counter; \ \ if (specpdl_ptr->func != 0 || \ ((sym = XSYMBOL (specpdl_ptr->symbol)), \ SYMBOL_VALUE_MAGIC_P (sym->value))) \ { \ struct gcpro gcpro1; \ GCPRO1 (value); \ unbind_to_hairy (UNBIND_TO_count); \ UNGCPRO; \ break; \ } \ \ sym->value = specpdl_ptr->old_value; \ } \ check_specbind_stack_sanity (); \ } while (0) /* A slightly faster inline version of unbind_to_1, that doesn't offer GCPROing services. */ #define UNBIND_TO(count) do { \ int UNBIND_TO_count = (count); \ while (specpdl_depth_counter != UNBIND_TO_count) \ { \ Lisp_Symbol *sym; \ --specpdl_ptr; \ --specpdl_depth_counter; \ \ if (specpdl_ptr->func != 0 || \ ((sym = XSYMBOL (specpdl_ptr->symbol)), \ SYMBOL_VALUE_MAGIC_P (sym->value))) \ { \ unbind_to_hairy (UNBIND_TO_count); \ break; \ } \ \ sym->value = specpdl_ptr->old_value; \ } \ check_specbind_stack_sanity (); \ } while (0) #if 0 /* Unused. It's too hard to guarantee that the current bindings contain only variables. */ /* Another inline version of unbind_to_1(). VALUE is GC-protected. Caller guarantees that: - all of the elements on the binding stack are variable bindings. Else we crash. */ #define UNBIND_TO_GCPRO_VARIABLES_ONLY(count, value) do { \ int UNBIND_TO_count = (count); \ while (specpdl_depth_counter != UNBIND_TO_count) \ { \ Lisp_Symbol *sym; \ --specpdl_ptr; \ --specpdl_depth_counter; \ \ sym = XSYMBOL (specpdl_ptr->symbol); \ if (!SYMBOL_VALUE_MAGIC_P (sym->value)) \ sym->value = specpdl_ptr->old_value; \ else \ { \ struct gcpro gcpro1; \ GCPRO1 (value); \ unbind_to_hairy (UNBIND_TO_count); \ UNGCPRO; \ break; \ } \ } \ } while (0) #endif /* unused */ /* A faster, but less safe inline version of Fset(). Caller guarantees that: - SYMBOL is a non-constant symbol (i.e. not Qnil, Qt, or keyword). Else we crash. */ #define FSET_FAST_UNSAFE(sym, newval) do { \ Lisp_Object FFU_sym = (sym); \ Lisp_Object FFU_newval = (newval); \ Lisp_Symbol *FFU_symbol = XSYMBOL (FFU_sym); \ Lisp_Object FFU_oldval = FFU_symbol->value; \ if (!SYMBOL_VALUE_MAGIC_P (FFU_oldval) || UNBOUNDP (FFU_oldval)) \ FFU_symbol->value = FFU_newval; \ else \ Fset (FFU_sym, FFU_newval); \ } while (0) /* Note: you must always fill in all of the fields in a backtrace structure before pushing them on the backtrace_list. The profiling code depends on this. */ #define PUSH_BACKTRACE(bt) do { \ (bt).next = backtrace_list; \ backtrace_list = &(bt); \ } while (0) #define POP_BACKTRACE(bt) do { \ backtrace_list = (bt).next; \ } while (0) #endif /* INCLUDED_backtrace_h_ */