Backport from master.
Problem reported by Ulrich Mueller; fix suggested by Eli Zaretskii
and Andreas Schwab (Bug#30855).
* src/alloc.c (mark_memory): Call mark_maybe_object only on
pointers that are properly aligned for Lisp_Object.
* doc/lispref/positions.texi (Word Motion): Fix reference to
`char-script-table'.
* lisp/simple.el (backward-word):
* src/syntax.c (forward-word): Mention `char-script-table' and add
link to the 'Word Motion' manual section.
* src/xdisp.c (Fmove_point_visually): Don't let point exceed the
BEGV..ZV range. Signal Beginning of buffer error when there's a
before-string at BEGV. (Bug#30787)
* src/systhread.c (sys_thread_create)
[THREADS_ENABLED && HAVE_PTHREAD && DARWIN_OS]:
Require at least 8MB stack size for x64 and 4MB for x86 on macOS.
Do not merge to master.
If grow_specpdl fails due to outgrowing max_specpdl_size, it will
signal an error *before* growing the specpdl array. Therefore, when
handling the signal, specpdl_ptr points past the end of the specpdl
array and any further use of of specpdl before unwinding (e.g., if
edebug binds signal-hook-function) will cause memory corruption.
* src/eval.c (signal_or_quit): Don't call `signal-hook-function' if
the specpdl_ptr is already past the end of the specpdl array.
* test/src/eval-tests.el (eval-tests--exceed-specbind-limit)
(eval-exceed-specbind-with-signal-hook): New test & helper function.
* src/frame.c (frame_windows_min_size): Limit TTY frames to a
minimum height large enough to allow for a menu bar, the mode
line, one text line and one echo-area line. This avoids aborts in
cm.c:cmcheckmagic. (Bug#30320)
That commit did not make the corresponding change to printing, thus
breaking the (eq (read (prin1-to-string SYM)) SYM) invariant for those
symbols. It's too late in the release cycle to change printing
behavior, therefore revert the reader change.
Don't merge to master, the print function will be updated there (see
"Fix round tripping of read->print for symbols with strange quotes").
This is part two of a two part fix for the GTK scaling
problems. See the thread starting at
http://lists.gnu.org/archive/html/emacs-devel/2018-01/msg00372.html
for an explanation of why it has been added to Emacs 26.
* src/gtkutil.c (xg_set_geometry): Scale down the coordinates that we
pass to gtk_window_move and to gtk_window_parse_geometry.
* src/xterm.c (x_set_offset): Likewise.
This is part one of a two part fix for the GTK scaling
problems. See the thread starting at
http://lists.gnu.org/archive/html/emacs-devel/2018-01/msg00372.html
for an explanation of why it has been added to Emacs 26.
* src/xfns.c (Fx_display_monitor_attributes_list): Take scaling factor
into account when using GTK to query the monitor dimensions, which
allows frameset-restore to position frames correctly.
* src/process.c (Fmake_process): Have the pipe process honor the
parent's query-on-exit flag.
* test/src/process-tests.el (make-process/noquery-stderr): New test.
* src/nsterm.h (NS_PARENT_WINDOW_LEFT_POS):
(NS_PARENT_WINDOW_TOP_POS): Get the parent frame through the frame
struct as invisible child windows are detached from their parents in
NS.
* src/nsterm.m (x_set_offset): Offscreen frames have `nil' screen
value, so handle that gracefully. Child frames with negative left and
top should be positioned relative to the bottom right of the parent
frame.
* src/coding.c (decode_coding): When flushing remaining raw bytes
from multibyte text, copy 2-byte forms of eight-bit-*
characters as single characters, not as 2 raw bytes. (Bug#29189)
* src/nsmenu.m (addItemWithWidgetValue)[NS_IMPL_COCOA]: It looks like
macOS 10.13 no longer ignores long modifier strings, so explicitly use
an empty string.
* src/window.c (window_scroll_pixel_based): Account for
scroll-margin when scrolling down, i.e. moving window-start
towards the beginning of the buffer. Reported by zhang cc
<ccsmile2008@outlook.com> in
http://lists.gnu.org/archive/html/emacs-devel/2017-12/msg00894.html.
* src/buffer.c (Fset_buffer_modified_p)
(Frestore_buffer_modified_p): Doc fixes.
* src/insdel.c (syms_of_insdel) <inhibit-modification-hooks>:
Document in the doc string that this variable also inhibits file
locks and active region handling. (Bug#29846)
