Enable GC_REMEMBER_LAST_MARKED by default (it was disabled in Emacs 29)
to make it easier to debug difficult-to-reproduce GC problems
encountered by users. This increases GC costs by about 5 %, which can
be avoided by turning the mark trace buffer back off using the new
--disable-gc-mark-trace option.
See discussion at
https://lists.gnu.org/archive/html/emacs-devel/2024-09/msg00240.html
* configure.ac (--disable-gc-mark-trace): New config option.
* etc/NEWS: Mention it.
* src/alloc.c: Enable it by default and avoid a compiler warning.
* configure.ac (W32_LIBS): Don't link with -lusp10 on non-Cygwin
systems.
* src/emacs.c (main): Call globals_of_w32 before the startup
directory is initialized.
* src/w32.c (maybe_load_unicows_dll): Call
load_unicows_dll_for_w32fns.
* src/w32.h: Update prototypes.
* src/w32fns.c (Fx_create_frame, w32_create_tip_frame): Do not
register the Uniscribe font driver when unavailable.
(pfnSHFileOperationW): New function pointer.
(Fsystem_move_file_to_trash): Load UNICOWS.DLL if not yet
loaded. Call SHFileOperationW through said function pointer.
(pfnShellExecuteExW): New function pointer.
(Fw32_shell_execute) [!CYGWIN]: Load UNICOWS.DLL if not yet
loaded. Call ShellExecuteExW through said function pointer.
(pfnShell_NotifyIconW): New function pointer.
(add_tray_notification, delete_tray_notification): Call
Shell_NotifyIconW through said function pointer.
(Fw32_notification_notify): Load UNICOWS.DLL.
(Fw32_notification_close): Return if Shell_NotifyIconW is
unavailable, as when UNICOWS.DLL has yet to be loaded.
(load_unicows_dll_for_w32fns): New function.
* src/w32notify.c (pfnReadDirectoryChangesW): New function
pointer.
(watch_completion, remove_watch, Fw32notify_add_watch)
(Fw32notify_rm_watch, Fw32notify_valid_p): Call
ReadDirectoryChangesW through said function pointer, and assert
its presence.
(globals_of_w32notify): Load ReadDirectoryChangesW from
KERNEL32.DLL.
* src/w32uniscribe.c (pfnScriptItemize, pfnScriptShape)
(pfnScriptPlace, pfnScriptGetGlyphABCWidth, pfnScriptFreeCache)
(pfnScriptGetCMap): New function pointers.
(uniscribe_close, uniscribe_shape, uniscribe_encode_char)
(uniscribe_check_otf_1): Call Uniscribe functions through the
same.
(syms_of_w32uniscribe_for_pdumper): Load Uniscribe library and
required functions from the same, and if unavailable, return
while leaving uniscribe_available intact. On Cygwin, simply
assign USP10.DLL functions to the said new function pointers.
* configure.ac (W32_LIBS): Don't link with -lusp10 on non-Cygwin
systems.
* src/emacs.c (main): Call globals_of_w32 before the startup
directory is initialized.
* src/w32.c (maybe_load_unicows_dll): Call
load_unicows_dll_for_w32fns.
* src/w32.h: Update prototypes.
* src/w32fns.c (Fx_create_frame, w32_create_tip_frame): Do not
register the Uniscribe font driver when unavailable.
(pfnSHFileOperationW): New function pointer.
(Fsystem_move_file_to_trash): Load UNICOWS.DLL if not yet
loaded. Call SHFileOperationW through said function pointer.
(pfnShellExecuteExW): New function pointer.
(Fw32_shell_execute) [!CYGWIN]: Load UNICOWS.DLL if not yet
loaded. Call ShellExecuteExW through said function pointer.
(pfnShell_NotifyIconW): New function pointer.
(add_tray_notification, delete_tray_notification): Call
Shell_NotifyIconW through said function pointer.
(Fw32_notification_notify): Load UNICOWS.DLL.
(Fw32_notification_close): Return if Shell_NotifyIconW is
unavailable, as when UNICOWS.DLL has yet to be loaded.
(load_unicows_dll_for_w32fns): New function.
* src/w32notify.c (pfnReadDirectoryChangesW): New function
pointer.
(watch_completion, remove_watch, Fw32notify_add_watch)
(Fw32notify_rm_watch, Fw32notify_valid_p): Call
ReadDirectoryChangesW through said function pointer, and assert
its presence.
(globals_of_w32notify): Load ReadDirectoryChangesW from
KERNEL32.DLL.
* src/w32uniscribe.c (pfnScriptItemize, pfnScriptShape)
(pfnScriptPlace, pfnScriptGetGlyphABCWidth, pfnScriptFreeCache)
(pfnScriptGetCMap): New function pointers.
(uniscribe_close, uniscribe_shape, uniscribe_encode_char)
(uniscribe_check_otf_1): Call Uniscribe functions through the
same.
(syms_of_w32uniscribe_for_pdumper): Load Uniscribe library and
required functions from the same, and if unavailable, return
while leaving uniscribe_available intact. On Cygwin, simply
assign USP10.DLL functions to the said new function pointers.
* configure.ac (ZIP): Search for a `zip' executable and
substitute the same if targeting SDK 8.
* java/INSTALL: Document new requirement.
* java/Makefile.in (GZIP_PROG, ZIP): New substitutions.
(.PHONY): Delete references to directory-tree.
(install_temp): On SDK 8 and earlier, compress large *.el and
Info files with gzip, and divide install_temp into three
separate directories, with one for large files, another for
gzipped files, and one more for the remainder.
(install_temp/assets/directory-tree, install_temp/assets/version)
(install_temp/assets/build_info): Merge these rules into
install_tmp, that they may execute before the assets directory
is split.
(emacs.apk-in): Package each directory separately, accounting
for their varied compression requirements.
* lisp/term/android-win.el (input-decode-map): Define select to
return in input-decode-map.
* configure.ac (USER_FULL_NAME): Define to
android_user_full_name only when a GUI system is being built.
Otherwise, set to pw->pw_gecos or NULL consistently with the
presence of pw->pw_gecos.
* src/editfns.c (Fuser_full_name): Adjust to match. Accept NULL
values from USER_FULL_NAME.
* admin/merge-gnulib: Also remove the new Gnulib file
m4/off64_t.m4, as Emacs doesn’t need off64_t.
* configure.ac (gl_TYPE_OFF64_T): Define a nearly no-op.
* configure.ac (CFLAGS): Add -D_FILE_OFFSET_BITS=32 on SDK 20
and earlier that unserviceable functions may not be selected.
Problem reported by Ruth Elburn <ruth@noreply.invalid>.
* configure.ac (D8): Attempt to locate the bundle where d8 is
installed, detect whether an installation of `r8' is similarly
present, and use this installation in place of d8 if so.
* java/Makefile.in (ANDROID_MIN_SDK, IS_D8_R8): New
substitutions.
(classes.dex): Provide --min-api, --debug or --release and
--pg-conf to d8 or r8.
* configure.ac: Stop relaying --with-ndk-cxx-shared to the
nested invocation of configure.
* build-aux/ndk-build-helper-1.mk (SYSTEM_LIBRARIES):
* build-aux/ndk-build-helper-2.mk (SYSTEM_LIBRARIES): Insert all
of the C++ libraries available on Android.
* configure.ac: Call ndk_LATE and ndk_LATE_EARLY within if
statement at toplevel, averting needless calls to AC_PROG_CXX.
* cross/ndk-build/Makefile.in (NDK_BUILD_CXX_STL)
(NDK_BUILD_CXX_LDFLAGS):
* cross/ndk-build/ndk-build.mk.in (NDK_BUILD_CXX_STL)
(NDK_BUILD_CXX_LDFLAGS): New variables.
* cross/ndk-build/ndk-resolve.mk (NDK_SYSTEM_LIBRARIES):
Introduce several other C++ libraries sometimes present on
Android.
(NDK_SO_EXTRA_FLAGS_$(LOCAL_MODULE)): Insert NDK_BUILD_CXX_STL
when any of these new C++ libraries are requested.
* m4/ndk-build.m4: Completely rewrite C++ compiler and library
detection.
* java/org/gnu/emacs/EmacsNative.java (EmacsNative): Attempt to
load more libraries from static initializer.
* java/INSTALL: Remove obsolete information.
* configure.ac (HAVE_INOTIFY): Check for the presence of
inotify_init in addition to inotify_init1.
* src/inotify.c (Finotify_add_watch): Implement with
inotify_init if inotify_init1 is absent.
Much like the NS port, only the main thread receives input from
the user interface, which is fortunately not a major problem for
packages such as lsp-mode that create Lisp threads.
* configure.ac: Enable with_threads under Android.
* src/android.c (android_init_events): Set `main_thread_id' to
the ID of the main thread.
(setEmacsParams): Set new global variable `android_jvm' to the
JVM object, for the purpose of attaching Lisp threads to the
JVM.
(android_select): [THREADS_ENABLED]: If the caller isn't the
main thread, resort to pselect. Don't check query before select
returns.
(android_check_query): Export.
* src/android.h (_ANDROID_H_): Define new macro and update
prototypes.
* src/process.c (android_select_wrapper): New function.
(wait_reading_process_output): If THREADS_ENABLED, call
thread_select through the Android select wrapper.
* src/thread.c (post_acquire_global_lock): Call
android_check_query; replace android_java_env with the incoming
Lisp thread's.
(run_thread): Attach and detach the thread created to the JVM.
(init_threads): Set the main thread's JNI environment object.
* src/thread.h (struct thread_state) <java_env>: New field.
* src/w32fns.c (DEFAULT_IMAGE_BASE): Define for 64-bit and 32-bit
MinGW builds.
(emacs_abort): Correct the callstack addresses for potential
relocation of the image base due to ASLR. This makes 'addr2line'
be able to interpret emacs_backtrace.txt when ASLR is in effect,
which it is on every modern version of MS-Windows. (Bug#63365)
* configure.ac (LD_SWITCH_SYSTEM_TEMACS) [mingw32]: Add comment
about keeping the image-base values in sync with w32fns.c.
* etc/DEBUG (How to disable ASLR): New section.
