(message3, message3_nolog): Extract nbytes and multibyteness directly
from the string. Change all callers.
(message3_nolog): Don't set message_enable_multibyte since set_message
will reset it anyway.
(message1, message1_nolog): Use message3.
(vmessage): Use a stack allocated buffer rather than f->message_buf.
(with_echo_area_buffer): Remove last two arguments. Update all callers.
(set_message): Drop all but the second arg, which has to be a string.
(set_message_1): Simplify now that we know that a1 is NULL and the
second arg is a string.
* src/frame.h (struct frame): Remove `message_buf' field.
Use glyphs_initialized_p instead.
(FRAME_MESSAGE_BUF): Remove macro.
* src/w16select.c (Fw16_set_clipboard_data): Prefer message3 to message2.
* src/lisp.h (message2, message2_nolog): Remove declarations.
(message3, message3_nolog): Update declarations.
* src/keyboard.c (read_char_minibuf_menu_text)
(read_char_minibuf_menu_width): Remove vars.
(read_char_minibuf_menu_prompt): Rewrite the menu's construction so as
to correctly handle multibyte strings.
* src/frame.c (delete_frame): Don't free message_buf any more.
* src/editfns.c (message_text, message_length): Remove vars.
(Fmessage_box): Don't copy the Lisp string's bytes any longer.
* src/fileio.c (auto_save_error): Use message3 instead of message2.
* src/dispnew.c (adjust_frame_message_buffer): Remove function.
* lisp.h (XSAVE_OBJECT): New macro to extract saved objects.
(allocate_misc): Remove prototype.
(format_save_value): New prototype.
* alloc.c (allocate_misc): Revert back to static.
(format_save_value): New function to build Lisp_Save_Value
object with the specified internal structure.
(make_save_value): Reimplement using format_save_value.
* editfns.c (save_excursion_save): Use format_save_value.
(save_excursion_restore): Use XSAVE_OBJECT.
* lisp.h (toplevel): Enumeration to describe types of saved objects.
(struct Lisp_Save_Value): New layout. Adjust comments.
(XSAVE_POINTER): New macro.
(XSAVE_INTEGER): Likewise.
(allocate_misc): Add prototype.
(free_misc): Likewise.
* alloc.c (allocate_misc): Now global.
(free_misc): Likewise. Adjust comment.
(make_save_value): Use new Lisp_Save_Value layout. Adjust comment.
(free_save_value): Likewise.
(mark_object): Likewise.
* editfns.c (save_excursion_save): Pack everything within
Lisp_Save_Value and so avoid xmalloc.
(save_excursion_restore): Adjust to match new layout. Use free_misc
because we do not allocate extra memory any more. Add eassert.
* print.c (print_object): New code to print Lisp_Save_Value. Do not
rely on valid_lisp_object_p if !GC_MARK_STACK. Adjust comments.
* dired.c, fileio.c, font.c, ftfont.c, gtkutil.c, keymap.c,
* lread.c, nsmenu.m, nsterm.h, xfns.c, xmenu.c, xselect.c:
Use XSAVE_POINTER and XSAVE_INTEGER where appropriate.
* admin/merge-gnulib (GNULIB_MODULES): Add putenv, unsetenv.
* lib/putenv.c, lib/unsetenv.c, m4/putenv.m4, m4/setenv.m4:
New files, copied automatically from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/alloc.c (xputenv): New function.
* src/dbusbind.c (Fdbus_init_bus):
* src/emacs.c (main):
* src/xterm.c (x_term_init):
Use xputenv instead of setenv or putenv, to detect memory exhaustion.
* src/editfns.c (initial_tz): Move static var decl up.
(tzvalbuf_in_environ): New static var.
(init_editfns): Initialize these two static vars.
(Fencode_time): Don't assume arbitrary limit on EMACS_INT width.
Save old TZ value on stack, if it's small.
(Fencode_time, set_time_zone_rule): Don't modify 'environ' directly;
instead, use xputenv+unsetenv to set and restore TZ.
(environbuf): Remove static var. All uses removed.
(Fset_time_zone_rule): Do not save TZ and environ;
no longer needed here.
(set_time_zone_rule_tz1, set_time_zone_rule_tz2) [LOCALTIME_CACHE]:
Move to inside set_time_zone_rule; they don't need file scope any more.
(set_time_zone_rule): Maintain the TZ=value string separately.
(syms_of_editfns): Don't initialize initial_tz;
init_editfns now does it.
* src/emacs.c (dump_tz) [HAVE_TZSET]: Now const.
* src/lisp.h (xputenv): New decl.
Fixes: debbugs:13070
(safe_alloca_unwind): Use it.
* lisp.h (free_save_value): New prototype.
* editfns.c (save_excursion_save): Use Lisp_Misc_Save_Value.
Add comment.
(save_excursion_restore): Adjust to match saved data structure.
Use free_save_value to offload some work from GC. Drop obsolete
#if 0 code.
* alloc.c (xpalloc): Comment fix.
* charset.c (Fdefine_charset_internal): If xpalloc exhausts memory
and signals an error, do not clear charset_table_size, as
charset_table is still valid.
* doprnt.c (evxprintf): Clear *BUF after freeing it.
* src/alloc.c (Fmake_symbol): Initialize `function' to Qnil.
* src/lread.c (init_obarray): Set `function' fields to Qnil.
* src/eval.c (Fcommandp): Ignore Qunbound.
(Fautoload, eval_sub, Fapply, Ffuncall, Fmacroexpand):
* src/data.c (Ffset, Ffboundp, indirect_function, Findirect_function):
Test NILP rather than Qunbound.
(Ffmakunbound): Set to Qnil.
(Fsymbol_function): Never signal an error.
(Finteractive_form): Ignore Qunbound.
* alloc.c (struct Lisp_Vectorlike_Free, NEXT_IN_FREE_LIST):
Remove, and replace all uses with ...
(next_in_free_list, set_next_in_free_list):
New functions, which respect C's aliasing rules better.
* alloc.c (struct Lisp_Vectorlike_Free): Special type to represent
vectorlike object on the free list. This is introduced to avoid
some (but not all) pointer casting and aliasing problems, see
http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00105.html.
* .gdbinit (pvectype, pvecsize): New commands to examine vectorlike
objects.
(xvectype, xvecsize): Use them to examine Lisp_Object values.
* src/profiler.c (Qprofiler_backtrace_equal, hashtest_profiler): New vars.
(make_log): Use them.
(handle_profiler_signal): Don't inhibit quit any longer since we don't
call Fequal any more.
(Ffunction_equal): New function.
(cmpfn_profiler, hashfn_profiler): New functions.
(syms_of_profiler): Initialize them.
* src/lisp.h (struct hash_table_test): New struct.
(struct Lisp_Hash_Table): Use it.
* src/alloc.c (mark_object): Mark hash_table_test fields of hash tables.
* src/fns.c (make_hash_table): Take a struct to describe the test.
(cmpfn_eql, cmpfn_equal, cmpfn_user_defined, hashfn_eq, hashfn_eql)
(hashfn_equal, hashfn_user_defined): Adjust to new calling convention.
(hash_lookup, hash_remove_from_table): Move assertion checking of
hashfn result here. Check hash-equality before calling cmpfn.
(Fmake_hash_table): Adjust call to make_hash_table.
(hashtest_eq, hashtest_eql, hashtest_equal): New structs.
(syms_of_fns): Initialize them.
* src/emacs.c (main): Move syms_of_fns earlier.
* src/xterm.c (syms_of_xterm):
* src/category.c (hash_get_category_set): Adjust call to make_hash_table.
* src/print.c (print_object): Adjust to new hash-table struct.
* src/composite.c (composition_gstring_put_cache): Adjust to new hashfn.
* lisp.h (enum pvec_type): Avoid explicit enum member values.
Adjust comment.
(enum More_Lisp_Bits): Change PSEUDOVECTOR_SIZE_BITS and
PVEC_TYPE_MASK to arrange new bitfield in the vector header.
(PSEUDOVECTOR_REST_BITS, PSEUDOVECTOR_REST_MASK): New members.
(PSEUDOVECTOR_AREA_BITS): New member used to extract subtype
information from the vector header. Adjust comment.
(XSETPVECTYPE, XSETPVECTYPESIZE, XSETTYPED_PSEUDOVECTOR)
(PSEUDOVECTOR_TYPEP, DEFUN): Adjust to match new vector header
layout.
(XSETSUBR, SUBRP): Adjust to match new Lisp_Subr layout.
(struct vectorlike_header): Remove next member. Adjust comment.
(struct Lisp_Subr): Add convenient header. Adjust comment.
(allocate_pseudovector): Adjust prototype.
* alloc.c (mark_glyph_matrix, mark_face_cache, allocate_string)
(sweep_string, lisp_malloc): Remove useless prototypes.
(enum mem_type): Adjust comment.
(NEXT_IN_FREE_LIST): New macro.
(SETUP_ON_FREE_LIST): Adjust XSETPVECTYPESIZE usage.
(Fmake_bool_vector): Likewise.
(struct large_vector): New type to represent allocation unit for
the vectors with the memory footprint more than VBLOOCK_BYTES_MAX.
(large_vectors): Change type to struct large_vector.
(allocate_vector_from_block): Simplify.
(PSEUDOVECTOR_NBYTES): Replace with...
(vector_nbytes): ...new function. Adjust users.
(sweep_vectors): Adjust processing of large vectors.
(allocate_vectorlike): Likewise.
(allocate_pseudovector): Change type of 3rd arg to enum pvec_type.
Add easserts. Adjust XSETPVECTYPESIZE usage.
(allocate_buffer): Use BUFFER_PVEC_INIT.
(live_vector_p): Adjust to match large vector.
* buffer.c (init_buffer_once): Use BUFFER_PVEC_INIT.
* buffer.h (struct buffer): Add next member.
(BUFFER_LISP_SIZE, BUFFER_REST_SIZE, BUFFER_PVEC_INIT):
New macros.
(FOR_EACH_BUFFER): Adjust to match struct buffer change.
* fns.c (internal_equal): Adjust to match enum pvec_type change.
(copy_hash_table): Adjust to match vector header change.
* lread.c (defsubr): Use XSETPVECTYPE.
* .gdbinit (xpr, xbacktrace): Adjust to match vector header change.
(xvectype): Likewise. Print PVEC_NORMAL_VECTOR for regular vectors.
(xvecsize): New command.
src/w32term.h (SCROLL_BAR_PACK, SCROLL_BAR_UNPACK): Define for x64.
(SET_SCROLL_BAR_W32_WINDOW): Cast ID to intptr_t, for
compatibility with x64.
src/w32term.c (w32_draw_underwave): Don't use GCC extensions for
defining an XRectangle structure.
src/w32proc.c (RVA_TO_PTR, w32_executable_type): Fix pointer
arithmetics for compatibility with x64.
src/w32menu.c (add_menu_item): Use UINT_PTR instead of UINT, for
compatibility with x64.
src/w32heap.h: Adjust prototypes and declarations.
src/w32heap.c (RVA_TO_PTR, allocate_heap, sbrk, init_heap)
(round_heap): Use DWORD_PTR, ptrdiff_t and size_t instead of
DWORD, long, and unsigned long, for compatibility with x64.
(allocate_heap) [_WIN64]: Reserve 32GB of memory.
(sbrk): Argument is now of type ptrdiff_t.
src/w32fns.c (HMONITOR): Condition declaration on _WIN32_WINNT being
less than 0x0500.
(w32_msg_pump): Use WPARAM type for 'result'.
src/w32.c (init_environment, get_emacs_configuration): Support AMD64
architecture.
(init_ntproc): Cast arguments of _open_osfhandle to intptr_t, for
compatibility with x64.
src/vm-limit.c (lim_data): Now size_t.
(check_memory_limits): Adjust prototypes of real_morecore and
__morecore to receive argument of type ptrdiff_t. Use size_t for
five_percent and data_size.
src/unexw32.c: Use DWORD_PTR instead of DWORD for file-scope
variables, for compatibility with x64.
(rva_to_section, offset_to_section, relocate_offset)
(OFFSET_TO_RVA, RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET)
(PTR_TO_RVA, RVA_TO_PTR, OFFSET_TO_PTR, get_section_info)
(copy_executable_and_dump_data): Use DWORD_PTR instead of DWORD
for compatibility with x64.
src/sysdep.c (STDERR_FILENO): Define if not already defined.
src/ralloc.c (real_morecore): Argument type is now ptrdiff_t.
(__morecore): Argument type is now ptrdiff_t.
(ROUNDUP, MEM_ROUNDUP): Use size_t instead of 'unsigned long'.
(relinquish): Use ptrdiff_t type for 'excess'.
(r_alloc_sbrk): Argument type is now ptrdiff_t.
src/makefile.w32-in (HEAPSIZE): Get value from EMACS_HEAPSIZE.
(bootstrap-temacs-CMD, bootstrap-temacs-SH): Use $(EMACS_PURESIZE)
instead of a literal number.
src/gmalloc.c [WINDOWSNT]: Include w32heap.h.
(min): Define only if not already defined.
src/frame.c (x_report_frame_params): Use EMACS_UINT for the return
value of FRAME_X_WINDOW, to fit a 64-bit pointer on 64-bit Windows
hosts.
src/image.c (x_bitmap_pixmap): Return ptrdiff_t, not int, since
'bitmaps' is a pointer.
src/dispextern.h (x_bitmap_pixmap): Adjust prototype.
src/alloc.c (gdb_make_enums_visible): Now conditional on __GNUC__.
nt/makefile.w32-in ($(TRES)): Use $(EMACS_MANIFEST).
nt/inc/sys/socket.h: Don't map Winsock error codes to standard ones
that are already defined.
nt/inc/ms-w32.h (EMACS_INT, EMACS_UINT, EMACS_INT_MAX, PRIuMAX)
(pI, _INTPTR) [_MSC_VER]: Fix definitions for MSVC.
[_MSC_VER]: Add pragmas to suppress some MSVC warnings.
nt/preprep.c (pfnCheckSumMappedFile, rva_to_section)
(offset_to_section, relocate_offset, OFFSET_TO_RVA)
(RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET, PTR_TO_RVA)
(OFFSET_TO_PTR, ROUND_UP, ROUND_DOWN)
(copy_executable_and_move_sections, ADJUST_IMPORT_RVA, main): Use
DWORD_PTR instead of DWORD for compatibility with x64.
nt/nmake.defs: Support AMD64.
(EMACS_HEAPSIZE, EMACS_PURESIZE, EMACS_MANIFEST): New macros.
nt/gmake.defs: (EMACS_HEAPSIZE, EMACS_PURESIZE, EMACS_MANIFEST):
New macros.
nt/addsection.c (pfnCheckSumMappedFile, rva_to_section)
(offset_to_section, relocate_offset, OFFSET_TO_RVA)
(RVA_TO_OFFSET, RVA_TO_SECTION_OFFSET, PTR_TO_RVA)
(OFFSET_TO_PTR, ROUND_UP, ROUND_DOWN)
(copy_executable_and_add_section, main): Use DWORD_PTR instead of
DWORD, for compatibility with x64.
nt/emacs-x64.manifest: New file.
nt/emacs-x86.manifest: Renamed from emacs.manifest.
lib-src/ntlib.c (gettimeofday): Copy from src/w32.c. lib/gettime.
needs this function.
* src/profiler.c: Remove filtering functionality.
(is_in_trace, Qgc): Remove vars.
(make_log, record_backtrace, Fsample_profiler_log):
Rewrite, using Elisp hash-tables.
(approximate_median, evict_lower_half): New functions.
(cpu_log): Rename from sample_log.
(cpu_gc_count): New var.
(Fsample_profiler_reset, Fmemory_profiler_reset): Remove.
(sigprof_handler): Add count to cpu_gc_count during GC, detected via
backtrace_list.
(block_sigprof, unblock_sigprof): Remove.
(gc_probe, mark_profiler): Remove functions.
(syms_of_profiler): Staticpro cpu_log and memory_log.
* lisp/profiler.el (profiler-sample-interval): Move before first use.
Change default to 1ms.
(profiler-entry=, profiler-backtrace-reverse, profiler-log-fixup-slot)
(profiler-calltree-elapsed<, profiler-calltree-elapsed>): Remove functions.
(profiler-entry-format): Don't use type-of.
(profiler-slot, profiler-log): Remove structs.
(profiler-log-timestamp, profiler-log-type, profiler-log-diff-p):
Redefine for new log representation.
(profiler-log-diff, profiler-log-fixup, profiler-calltree-build-1):
Rewrite for new log representation.
(profiler-calltree): Remove `elapsed' fields.
(profiler-calltree-count<, profiler-report-make-entry-part):
Remove gc special case.
(profiler-calltree-find): Use equal.
(profiler-calltree-walk): Remove `args'; rely on closures instead.
(profiler-calltree-compute-percentages-1): Remove; inlined.
(profiler-calltree-compute-percentages): Simplify.
(profiler-report-log, profiler-report-reversed)
(profiler-report-order): Use defvar-local.
(profiler-report-line-format): Remove `elapsed', do a bit of CSE.
(profiler-report-mode-map): Remove up/down bindings.
(profiler-report-make-buffer-name): Simplify by CSE.
(profiler-report-mode): Remove redundant code.
(profiler-report-expand-entry, profiler-report-collapse-entry):
Use inhibit-read-only.
(profiler-report-render-calltree-1): Simplify by CSE.
(profiler-reset): Rewrite for new subroutines.
(profiler--report-cpu): Rename from sample-profiler-report.
(profiler--report-memory): Rename from memory-profiler-report.
* src/alloc.c (Fgarbage_collect): Record itself in backtrace_list.
Don't set is_in_trace any more. Don't call mark_profiler.
Only call gc_probe for the memory profiler.
(syms_of_alloc): Define Qautomatic_gc.
* src/lisp.h (SXHASH_COMBINE): Move back to...
* src/fns.c (SXHASH_COMBINE): ...here.
* src/xdisp.c (Qautomatic_redisplay): New constant.
(redisplay_internal): Record itself in backtrace_list.
(syms_of_xdisp): Define Qautomatic_redisplay.
* .dir-locals.el (indent-tabs-mode): Remove personal preference.
Problem reported by Dani Moncayo in
<http://lists.gnu.org/archive/html/emacs-devel/2012-09/msg00557.html>.
* alloc.c (die):
* sysdep.c (emacs_abort): Do not reset signal handler.
* emacs.c (terminate_due_to_signal): Reset signal handler here.
* sysdep.c (init_signals): Do not use SA_NODEFER. It wasn't
wanted even on POSIXish hosts, and it doesn't work on Windows.
* nt/inc/ms-w32.h (emacs_raise): New macro.
* src/alloc.c (die):
* src/sysdep.c (emacs_abort) [HAVE_NTGUI]:
Avoid recursive loop if there's a fatal error in the function itself.
* src/atimer.c (pending_atimers):
* src/blockinput.h: Don't include "atimer.h"; no longer needed.
(interrupt_input_pending): Remove. All uses removed.
pending_signals now counts both atimers and ordinary interrupts.
This is less racy than having three separate pending-signal flags.
(block_input, unblock_input, totally_unblock_input, unblock_input_to)
(input_blocked_p):
Rename from their upper-case counterparts BLOCK_INPUT,
UNBLOCK_INPUT, TOTALLY_UNBLOCK_INPUT, UNBLOCK_INPUT_TO,
INPUT_BLOCKED_P, and turn into functions. All uses changed.
This makes it easier to access volatile variables more accurately.
(BLOCK_INPUT_RESIGNAL): Remove. All uses replaced by unblock_input ().
(input_blocked_p): Prefer this to 'interrupt_input_blocked', as
that's more reliable if the code is buggy and sets
interrupt_input_blocked to a negative value. All uses changed.
* src/atimer.c (deliver_alarm_signal):
Remove. No need to deliver this to the parent; any thread can
handle this signal now. All uses replaced by underlying handler.
* src/atimer.c (turn_on_atimers):
* src/dispnew.c (handle_window_change_signal):
* src/emacs.c (handle_danger_signal):
* src/keyboard.c (kbd_buffer_get_event):
Don't reestablish signal handler; not needed with sigaction.
* src/blockinput.h (UNBLOCK_INPUT_TO, TOTALLY_UNBLOCK_INPUT)
(UNBLOCK_INPUT_TO):
Rework to avoid unnecessary accesses to volatile variables.
(UNBLOCK_INPUT_TO): Now a function.
(totally_unblock_input, unblock_input): New decls.
* src/data.c (handle_arith_signal, deliver_arith_signal): Move to sysdep.c
(init_data): Remove. Necessary stuff now done in init_signal.
* src/emacs.c, src/xdisp.c: Include "atimer.h", since we invoke atimer functions.
* src/emacs.c (handle_fatal_signal, deliver_fatal_signal): Move to sysdep.c.
(fatal_error_code): Remove; no longer needed.
(terminate_due_to_signal): Rename from fatal_error_backtrace, since
it doesn't always backtrace. All uses changed. No need to reset
signal to default, since sigaction and/or die does that for us now.
Use emacs_raise (FOO), not kill (getpid (), FOO).
(main): Check more-accurately whether we're dumping.
Move fatal-error setup to sysdep.c
* src/floatfns.c: Do not include "syssignal.h"; no longer needed.
* src/gtkutil.c (xg_get_file_name, xg_get_font):
Remove no-longer-needed signal-mask manipulation.
* src/keyboard.c, src/process.c (POLL_FOR_INPUT):
Don't depend on USE_ASYNC_EVENTS, a symbol that is never defined.
* src/keyboard.c (read_avail_input): Remove.
All uses replaced by gobble_input.
(Ftop_level): Use TOTALLY_UNBLOCK_INPUT rather than open code.
(kbd_buffer_store_event_hold, gobble_input):
(record_asynch_buffer_change) [USABLE_SIGIO]:
(store_user_signal_events):
No need to mess with signal mask.
(gobble_input): If blocking input and there are terminals, simply
set pending_signals to 1 and return. All hooks changed to not
worry about whether input is blocked.
(process_pending_signals): Clear pending_signals before processing
them, in case a signal comes in while we're processing.
By convention callers now test pending_signals before calling us.
(UNBLOCK_INPUT_TO, unblock_input, totally_unblock_input):
New functions, to support changes to blockinput.h.
(handle_input_available_signal): Now extern.
(reinvoke_input_signal): Remove. All uses replaced by
handle_async_input.
(quit_count): Now volatile, since a signal handler uses it.
(handle_interrupt): Now takes bool IN_SIGNAL_HANDLER as arg. All
callers changed. Block SIGINT only if not already blocked.
Clear sigmask reliably, even if Fsignal returns, which it can.
Omit unnecessary accesses to volatile var.
(quit_throw_to_read_char): No need to restore sigmask.
* src/keyboard.c (gobble_input, handle_user_signal):
* src/process.c (wait_reading_process_output):
Call signal-handling code rather than killing ourselves.
* src/lisp.h: Include <float.h>, for...
(IEEE_FLOATING_POINT): New macro, moved here to avoid duplication.
(pending_signals): Now volatile.
(syms_of_data): Now const if IEEE floating point.
(handle_input_available_signal) [USABLE_SIGIO]:
(terminate_due_to_signal, record_child_status_change): New decls.
* src/process.c (create_process): Avoid disaster if memory is exhausted
while we're processing a vfork, by tightening the critical section
around the vfork.
(send_process_frame, process_sent_to, handle_pipe_signal)
(deliver_pipe_signal): Remove. No longer needed, as Emacs now
ignores SIGPIPE.
(send_process): No need for setjmp/longjmp any more, since the
SIGPIPE stuff is now gone. Instead, report an error if errno
is EPIPE.
(record_child_status_change): Now extern. PID and W are now args.
Return void, not bool. All callers changed.
* src/sysdep.c (wait_debugging) [(BSD_SYSTEM || HPUX) && !defined (__GNU__)]:
Remove. All uses removed. This bug should be fixed now in a
different way.
(wait_for_termination_1): Use waitpid rather than sigsuspend,
and record the child status change directly. This avoids the
need to futz with the signal mask.
(process_fatal_action): Move here from emacs.c.
(emacs_sigaction_flags): New function, containing
much of what used to be in emacs_sigaction_init.
(emacs_sigaction_init): Use it. Block nonfatal system signals that are
caught by emacs, to make races less likely.
(deliver_process_signal): Rename from handle_on_main_thread.
All uses changed.
(BACKTRACE_LIMIT_MAX): Now at top level.
(thread_backtrace_buffer, threadback_backtrace_pointers):
New static vars.
(deliver_thread_signal, deliver_fatal_thread_signal):
New functions, for more-accurate delivery of thread-specific signals.
(handle_fatal_signal, deliver_fatal_signal): Move here from emacs.c.
(deliver_arith_signal): Handle in this thread, not
in the main thread, since it's triggered by this thread.
(maybe_fatal_sig): New function.
(init_signals): New arg DUMPING so that we can be more accurate
about whether we're dumping. Caller changed.
Treat thread-specific signals differently from process-general signals.
Block all signals while handling fatal error; that's safer.
xsignal from SIGFPE only on non-IEEE hosts, treating it as fatal
on IEEE hosts.
When batch, ignore SIGHUP, SIGINT, SIGTERM if they were already ignored.
Ignore SIGPIPE unless batch.
(emacs_backtrace): Output backtrace for the appropriate thread,
which is not necessarily the main thread.
* src/syssignal.h: Include <stdbool.h>.
(emacs_raise): New macro.
* src/xterm.c (x_connection_signal): Remove; no longer needed
now that we use sigaction.
(x_connection_closed): No need to mess with sigmask now.
(x_initialize): No need to reset SIGPIPE handler here, since
init_signals does this for us now.
Fixes: debbugs:12471
calling mark_vectorlike since that's the one that marks the window.
(mark_discard_killed_buffers): Mark the final cdr.
* src/window.h (struct window): Move prev/next_buffers to the
non-standard fields.
* src/window.c (make_window): Initialize prev/next_buffers manually.
When auditing signal-handling in preparation for cleaning it up,
I found that SYNC_INPUT has race conditions and would be a real
pain to fix. Since it's an undocumented and deprecated
configure-time option, now seems like a good time to remove it.
Also see <http://bugs.gnu.org/11080#16>.
* configure.ac (SYNC_INPUT, BROKEN_SA_RESTART): Remove.
* admin/CPP-DEFINES (BROKEN_SA_RESTART, SA_RESTART): Remove.
* etc/TODO (Make SYNC_INPUT the default): Remove, as the code now
behaves as if SYNC_INPUT is always true.
* src/alloc.c (_bytes_used, __malloc_extra_blocks, _malloc_internal)
(_free_internal) [!DOUG_LEA_MALLOC]: Remove decls.
(alloc_mutex) [!SYSTEM_MALLOC && !SYNC_INPUT && HAVE_PTHREAD]:
(malloc_hysteresis):
(check_depth) [XMALLOC_OVERRUN_CHECK]:
(MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT):
(__malloc_hook, __realloc_hook, __free_hook, BYTES_USED)
(dont_register_blocks, bytes_used_when_reconsidered)
(bytes_used_when_full, emacs_blocked_free, emacs_blocked_malloc)
(emacs_blocked_realloc, reset_malloc_hooks, uninterrupt_malloc):
[!SYSTEM_MALLOC && !SYNC_INPUT]:
Remove. All uses removed.
(MALLOC_BLOCK_INPUT, MALLOC_UNBLOCK_INPUT): Use a different
implementation, one that depends on whether the new macro
XMALLOC_BLOCK_INPUT_CHECK is defined, not on whether SYNC_INPUT
is defined.
* src/atimer.c (run_timers, handle_alarm_signal):
* src/keyboard.c (pending_signal, poll_for_input_1, poll_for_input)
(handle_async_input, process_pending_signals)
(handle_input_available_signal, init_keyboard):
* src/nsterm.m (ns_read_socket):
* src/process.c (wait_reading_process_output):
* src/regex.c (immediate_quit, IMMEDIATE_QUIT_CHECK):
* src/sysdep.c (emacs_sigaction_init) [SA_RESTART]:
(emacs_write):
* src/xterm.c (XTread_socket):
Assume SYNC_INPUT.
* src/conf_post.h (SA_RESTART) [IRIX6_5]: Do not #undef.
* src/eval.c (handling_signal): Remove. All uses removed.
* src/lisp.h (ELSE_PENDING_SIGNALS): Remove.
All uses replaced with the SYNC_INPUT version.
(reset_malloc_hooks, uninterrupt_malloc, handling_signal):
Remove decls.
* src/sysdep.c, src/syssignal.h (main_thread) [FORWARD_SIGNAL_TO_MAIN_THREAD]:
Now static.
Fixes: debbugs:12450
* configure.ac (HAVE__SETJMP, HAVE_SIGSETJMP): New symbols.
(_setjmp, _longjmp): Remove.
* src/lisp.h: Include <setjmp.h> here, since we use its symbols here.
All instances of '#include <setjmp.h>' removed, if the
only reason for the instance was because "lisp.h" was included.
(sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols.
Unless otherwise specified, replace all uses of jmp_buf, _setjmp,
and _longjmp with the new symbols. Emacs already uses _setjmp if
available, so this change affects only POSIXish hosts that have
sigsetjmp but not _setjmp, such as some versions of Solaris and
Unixware. (Also, POSIX-2008 marks _setjmp as obsolescent.)
* src/image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros.
(png_load_body) [HAVE_PNG]:
(PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]:
(PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]:
Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp,
since PNG requires jmp_buf. This is the only exception to the
general rule that we now use sys_setjmp and sys_longjmp.
This exception is OK since this code does not change the signal
mask or longjmp out of a signal handler.
Fixes: debbugs:12446
Use pointer-to-a-pointer to simplify and avoid a NILP check each
time an item is removed. No need to mark this function 'inline';
the compiler knows better than we do.
This reduces an amount of references to killed buffers and
helps GC to reclaim them faster.
* alloc.c (discard_killed_buffers): New function.
(mark_object): Use it for deleted windows and frames.
(mark_object): If symbol's value is set up for a killed buffer
or deleted frame, restore it's global binding.
* data.c (swap_in_global_binding): Add GC notice.
(swap_in_symval_forwarding): Use convenient set_blv_where.
* window.c (wset_next_buffers, wset_prev_buffers): Move ...
* window.h: ... to here.
Emacs's signal handlers were written in the old 4.2BSD style with
sigblock and sigmask and so forth, and this led to some
inefficiencies and confusion. Rewrite these to use
pthread_sigmask etc. without copying signal sets around. Also,
get rid of the confusing macros 'SIGNAL_THREAD_CHECK' and
'signal', and instead use functions that do not attempt to take
over the system name space. This patch causes Emacs's text
segment to shrink by 0.7% on my platform, Fedora 17 x86-64.
* configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
Adjust to syssignal.h changes.
(SIGNAL_H_AB): Remove; no longer needed.
* src/alloc.c, src/emacsgtkfixed.c, src/nsfns.m, src/widget.c, src/xmenu.c:
Do not include <signal.h> or "syssignal.h", as these
modules do not use signals.
* src/atimer.c, src/callproc.c, src/data.c, src/dispnew.c, src/emacs.c:
* src/floatfns.c, src/gtkutil.c, src/keyboard.c, src/process.c, src/sound.c:
* src/sysdep.c, src/term.c, src/xterm.c:
Do not include <signal.h>, as "syssignal.h" does that for us now.
* src/atimer.c (sigmask_atimers): New function.
(block_atimers, unblock_atimers): New functions,
replacing the old macros BLOCK_ATIMERS and UNBLOCK_ATIMERS.
All uses replaced.
* src/conf_post.h [SIGNAL_H_AHB]: Do not include <signal.h>;
no longer needed here.
* src/emacs.c (main): Inspect existing signal handler with sigaction,
so that there's no need to block and unblock SIGHUP.
* src/sysdep.c (struct save_signal): New member 'action', replacing
old member 'handler'.
(save_signal_handlers, restore_signal_handlers):
Use sigaction instead of 'signal' to save and restore.
(get_set_sighandler, set_sighandler) [!WINDOWSNT]:
New function. All users of 'signal' modified to use set_sighandler
if they're writeonly, and to use sys_signal if they're read+write.
(emacs_sigaction_init, forwarded_signal): New functions.
(sys_signal): Remove. All uses replaced by calls to sigaction
and emacs_sigaction_init, or by direct calls to 'signal'.
(sys_sigmask) [!__GNUC__]: Remove; no longer needed.
(sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove;
all uses replaced by pthread_sigmask etc. calls.
* src/syssignal.h: Include <signal.h>.
(emacs_sigaction_init, forwarded_signal): New decls.
(SIGMASKTYPE): Remove. All uses replaced by its definiens, sigset_t.
(SIGEMPTYMASK): Remove; all uses replaced by its definiens, empty_mask.
(sigmask, sys_sigmask): Remove; no longer needed.
(sigpause): Remove. All uses replaced by its definiens, sigsuspend.
(sigblock, sigunblock, sigfree):
(sigsetmask) [!defined sigsetmask]:
Remove. All uses replaced by pthread_sigmask.
(signal): Remove. Its remaining uses (with SIG_DFL and SIG_IGN)
no longer need to be replaced, and its typical old uses
are now done via emacs_sigaction_init and sigaction.
(sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove decls.
(sys_sigdel): Remove; unused.
(NSIG): Remove a FIXME; the code's fine. Remove an unnecessary ifdef.
Fixes: debbugs:12327
* alloc.c (Fgarbage_collect): Mark buffer_defaults and
mark_local_symbols here.
(mark_object): If GC_CHECK_MARKED_OBJECTS, simplify checking
since special buffers aren't marked here any more.
(allocate_buffer): Chain new buffer with all_buffers here...
* buffer.c (Fget_buffer_create, Fmake_indirect_buffer): ...and
not here.
(Vbuffer_defaults, Vbuffer_local_symbols): Remove.
(syms_of_buffer): Remove staticpro of the above.
(init_buffer_once): Set names for buffer_defaults and
buffer_local_symbols.
