The length of the data returned by sysctl can be zero, which was not
checked for. This could cause crashes, e.g. when querying
non-existent processes. (Bug#36279)
* src/sysdep.c (list_system_processes) [DARWIN_OS || __FreeBSD__]:
(system_process_attributes) [__FreeBSD__]:
(system_process_attributes) [DARWIN_OS]:
* src/filelock.c (get_boot_time) [CTL_KERN && KERN_BOOTTIME]: Check
for zero length data returned by sysctl.
* test/lisp/progmodes/python-tests.el (python-virt-bin): New function.
(python-shell-calculate-exec-path-2)
(python-shell-calculate-exec-path-3)
(python-shell-calculate-exec-path-4)
(python-shell-with-environment-1, python-shell-with-environment-2):
Use it.
* lisp/net/trampver.el: Change version to "2.3.5.26.3".
(customize-package-emacs-version-alist): Add Tramp version
integrated in Emacs 26.3.
* test/lisp/net/tramp-tests.el (tramp-test42-auto-load):
Add skip for w32.
* test/lisp/net/tramp-tests.el (tramp-test42-auto-load):
Expect a failed result if remote file access is not enabled,
as it happens while doing the test on Windows.
do not merge (fix unnecessary in Emacs 27)
* lisp/gnus/nnir.el (nnir-run-imap): Ensure that non-ascii group names
have been fully decoded before passing them to imap search.
* test/src/thread-tests.el (threads-test-bug33073): Remove
test which cannot work on the emacs-26 branch. Do not merge
to master. Reported by Juanma Barranquero <lekktu@gmail.com>.
* lisp/window.el (display-buffer-in-previous-window): Make
doc-string more explicit (Bug#36161).
* doc/lispref/windows.texi (Buffer Display Action Functions):
Make description of 'display-buffer-in-previous-window' more
explicit.
(Buffer Display Action Alists): Mention
'display-buffer-in-previous-window' in description of
'reusable-frames' entry.
* src/thread.c (unmark_main_thread): New function.
* src/lisp.h (unmark_main_thread): Prototype it.
* src/alloc.c (garbage_collect_1): Call it after sweeping.
(Bug#33073)
* test/src/thread-tests.el (threads-test-bug33073): New test.
* doc/misc/efaq-w32.texi (Grep, Recursive grep): More accurate
description of using 'findstr' as a poor-man's replacement for
'grep'. Reported by 范凯 <m_pupil@163.com>
* doc/lispref/windows.texi (Deleting Windows): Mention how
'delete-window' and 'delete-other-windows' handle atomic
windows. Minor rewrite.
(Quitting Windows): Mention how 'quit-restore-window' handles
atomic windows and that it tries to avoid raising an error.
(Atomic Windows): Tell how to dissolve atomic windows.
* lisp/emacs-lisp/bytecomp.el (byte-compile-callargs-warn): Don't pass
symbols which don't have a known definition to
byte-compile--function-signature, it fails to compile code which
previously compiled successfully (for example, gnus.el until
2019-06-01 "* lisp/gnus/gnus.el: Mark autoloaded macros as such" which
autoloads some macros as if they were functions).
* etc/HELLO: Set 'inhibit-compacting-font-caches' non-nil
locally. (Bug#36032)
* lisp/files.el: Add 'inhibit-compacting-font-caches' to the
list of built-in variables for which we set up
'safe-local-variable' properties.
`url-insert-file-contents` saves in buffer-file-coding-system
the coding-system used to decode the contents. Preserve this
as the contents is moved from buffer to string to buffer, and use
it when saving the contents to file, so as to try and better preserve
the original byte sequence.
(package--buffer-string, package--cs): New functions.
(package--check-signature): Encode `string` if a coding-system
was specified in buffer-file-coding-system.
(package--download-one-archive, package-install-from-archive):
Obey and preserve the buffer-file-coding-system if specified.
Do not merge.
Since Emacs 26, eieio objects use a class record (with circular
references) as the type descriptor of the object record. This causes
problems when reading back an object from a string, because the class
record is not `eq' to the canonical one (which means that read objects
don't satisfy the foo-p predicate).
* lisp/emacs-lisp/eieio.el (make-instance): As a (partial) fix, set
the record's type descriptor to a plain symbol for the type descriptor
when eieio-backward-compatibility is non-nil (the default).
* lisp/emacs-lisp/eieio-core.el (eieio--object-class): Call
eieio--class-object on the type tag when eieio-backward-compatibility
is non-nil.
(eieio-object-p): Use eieio--object-class instead of
eieio--object-class-tag.
* test/lisp/emacs-lisp/eieio-tests/eieio-test-persist.el
(eieio-test-persist-hash-and-vector)
(eieio-test-persist-interior-lists): Make into functions.
(eieio-persist-hash-and-vector-backward-compatibility)
(eieio-persist-hash-and-vector-no-backward-compatibility)
(eieio-test-persist-interior-lists-backward-compatibility)
(eieio-test-persist-interior-lists-no-backward-compatibility): New
tests which call them, eieio-backward-compatibility let-bound.
* src/gmalloc.c (_fraghead) [!HYBRID_MALLOC]:
Make it static in this case, too. This avoids having both
‘extern struct list _fraghead[];’ and
‘static struct list _fraghead[BLOCKLOG];’, which
GCC 9 complains about.
