GitLab

* lisp/emacs-lisp/bytecomp.el (byte-compile--use-old-handlers)
(byte-compile-condition-case, byte-compile-condition-case--old):
Remove.
(byte-compile-condition-case--new):
Rename to byte-compile-condition-case.
(byte-compile-catch, byte-compile-unwind-protect):
* lisp/emacs-lisp/cconv.el (cconv-convert, cconv-analyze-form):
* lisp/emacs-lisp/byte-opt.el (byte-optimize-form-code-walker):
Simplify.

* lisp/x-dnd.el (x-dnd-get-drop-x-y, x-dnd-version-from-flags)
(x-dnd-more-than-3-from-flags, x-dnd-get-motif-value)
(x-dnd-motif-value-to-list): Do not worry about pairs of
16-bit numbers, as the C code no longer generates them;
it generates bignums now, when needed on 32-bit platforms.

* lisp/gnus/gnus-group.el (gnus-group-unsubscribe-group): Simplify.

Reported by Glenn Morris in:
https://lists.gnu.org/r/emacs-devel/2020-01/msg00098.html
* src/alloc.c (allocate_string_data): If the string is small and
there is not enough room in the current block, clear the string if
CLEARIT.

In C++17, 'noexcept' is part of a function type and may be used in
typedef declarations, see
https://en.cppreference.com/w/cpp/language/noexcept_spec.

* src/emacs-module.h.in: Mark function pointer type aliases as
'noexcept' in C++17.

* lisp/emacs-lisp/cl-macs.el (cl--parse-loop-clause):
Don't generate a condition if both branches are the same, which
is the common case.

* test/src/emacs-module-tests.el (module/function-finalizer): Create
100 leaked functions to increase the probability that at least one
gets garbage-collected.

* src/emacs-module.h.in: Remove 'noexcept' from function pointer type
aliases.  It is illegal there in C++11, see
https://en.cppreference.com/w/cpp/language/noexcept_spec.

On my platform, this sped up (make-string 4000000000 0) from 2.5
to 0.015 seconds (not that people should want to do this much :-).
* src/alloc.c (allocate_string_data): New arg CLEARIT.
Callers changed.
(Fmake_string): Prefer calloc to malloc+memset when allocating a
large string of NUL bytes.
(make_clear_string): New function.
(make_uninit_string): Use it.
(make_clear_multibyte_string): New function.
(make_uninit_multibyte_string): Use it.

* src/module-env-28.h: Add new module environment functions to
module environment for Emacs 28.

* src/emacs-module.h.in: Document that 'emacs_finalizer' also works
for function finalizers.

* src/emacs-module.c (CHECK_MODULE_FUNCTION): New function.
(struct Lisp_Module_Function): Add finalizer data member.
(module_make_function): Initialize finalizer.
(module_get_function_finalizer)
(module_set_function_finalizer): New module environment functions.
(module_finalize_function): New function.
(initialize_environment): Initialize new environment functions.

* src/alloc.c (cleanup_vector): Call potential module function
finalizer during garbage collection.

* test/data/emacs-module/mod-test.c (signal_error): New helper
function.
(memory_full): Use it.
(finalizer): New example function finalizer.
(Fmod_test_make_function_with_finalizer)
(Fmod_test_function_finalizer_calls): New test module functions.
(emacs_module_init): Define them.

* test/src/emacs-module-tests.el (module/function-finalizer): New unit
test.

* doc/lispref/internals.texi (Module Functions): Document new
functionality.
(Module Misc): Move description of 'emacs_finalizer' type to 'Module
Functions' node, and add a reference to it.

* etc/NEWS: Mention new functionality.

* src/w32heap.c (sys_calloc): New function, implements calloc
in terms of our private implementations of malloc.

* nt/inc/ms-w32.h (calloc): Redirect to sys_calloc.

06364316 (origin/emacs-27) * lisp/net/tramp.el (tramp-file-local-na...
d3884f50 Adapt commentary in Tramp persistency file
2d82f5a4 Change Tramp version to 2.4.3.27.1
09b65707 ; * src/dispnew.c (adjust_glyph_matrix): Fix last change.
37f9182b Fix redisplay when mode-line-format changes mode-line's he...
1420906b * src/fileio.c (Fwrite_region): Improve the doc string.
01dfcb7c Fix removal of frame decorations on Windows (Bug#38705)

The following commit was skipped:

33815424 Fix compilation with GTK versions older than 3

071483b6 Fix reverting customizations
43203d50 * lisp/loadup.el: Set max-specpdl-size to 1800 when loadin...
fab3674b Revert "Raise default max-specpdl-size value"
42f66aa5 ; Fix NEWS.24
bb9402e6 Raise default max-specpdl-size value

The following commit was skipped:

4011b179 (emacs-27) ; Auto-commit of loaddefs files.

138e9051 Update distribution documentation

* lisp/net/tramp-cache.el (tramp-dump-connection-properties):
Adapt commentary in `tramp-persistency-file-name'.

* doc/misc/trampver.texi:
* lisp/net/trampver.el: Change version to "2.4.3.27.1".
(customize-package-emacs-version-alist): Add Tramp version
integrated in Emacs 27.1.

* lisp/frame.el (top-level): Add mode-line-format,
tab-line-format, and header-line-format to the list of variables
that should trigger an immediate redisplay of the buffer's
window.  This fixes redisplay of windows when the mode line
changes its height.

* src/xdisp.c (window_box_height): Use the window's
mode_line_height, tab_line_height, and header_line_height fields
in preference to CURRENT_MODE_LINE_HEIGHT,
CURRENT_TAB_LINE_HEIGHT, and CURRENT_HEADER_LINE_HEIGHT,
respectively.  This fixes display of vertical scroll bar when the
height of the window's mode line changes.
* src/dispnew.c (adjust_glyph_matrix): When resizing a window's
matrix, reset the mode_line_p flag of the previous mode-line row,
so that the window_box_height, CURRENT_MODE_LINE_HEIGHT, and their
ilk won't use stale info.  (Bug#38828)

Prefer calloc to malloc+memset when allocating large zeroed objects.
This avoids page thrashing when (make-vector 1000000000 nil)
allocates a large nil vector, as Emacs need not touch the
vector’s pages.  This wins on platforms like GNU/Linux where
calloc can fiddle with page tables to create a block of memory
that is lazily zeroed.
* src/alloc.c (lisp_malloc, lmalloc, allocate_vectorlike):
New arg CLEARIT to tell callee whether to use malloc or calloc.
All callers changed.
(allocate_clear_vector, allocate_nil_vector): New functions.
* src/alloc.c (xzalloc, make_vector):
* src/lisp.h (make_nil_vector):
Prefer calloc to malloc + memset(...,0,...).

* src/w32fns.c (w32_set_undecorated): Actualize
f->output_data.w32->dwStyle for subsequent calls of
AdjustWindowRect (Bug#38705).
* src/w32term.h (struct w32_output): Add comment for
dwstyle slot.

* src/xfns.c (x_get_net_workarea): Change a recently moved #ifndef
so that GTK builds which need this function will compile it.
Reported by John <jpff@codemist.co.uk>.

(cherry picked from commit d36adb54)

* src/xfns.c (x_get_net_workarea): Change a recently moved #ifndef
so that GTK builds which need this function will compile it.
Reported by John <jpff@codemist.co.uk>.

* lisp/custom.el (custom-push-theme): Don't use setcar to modify
the recorded value of PROP; instead, cons a new property list by
deleting the old value and adding the new one.  (Bug#38812)

This reverts commit bb9402e6.

* etc/NEWS.24: Minor retroactive wording changes and additions to
fix the version shown by Help commands.  (Bug#38844)

Occasionally, loading cl-generic.el from source requires
max_specpdl_size > 1600 when bootstrapping, and thus fails.
In any case we are very close to the limit.

* src/eval.c (init_eval_once): Raise max_specpdl_size to 1800.
* doc/lispref/variables.texi (Local Variables): Update docs.

* admin/nt/README-ftp-server: Remove as obsolete
* admin/nt/dist-build/README-windows-binaries: Add information
  about installer