* src/conf_post.h [HYBRID_MALLOC || DARWIN_OS && HAVE_UNEXEC]:
Include <stdlib.h> here, before redirecting 'malloc' and friends
to their hybrid_* and unexec_* equivalents. #undef malloc and
friends before redefining. Provide prototypes for the
replacements. Suggested by Paul Eggert <eggert@cs.ucla.edu>.
* src/gmalloc.c [HYBRID_MALLOC]: Remove declarations of 'malloc'
and friends, as they are now redundant: we include <stdlib.h> in
conf_post.h before redefining 'malloc' etc., and that provides
prototypes from system headers.
* configure.ac (HYBRID_MALLOC): Remove kludge to avoid replacement
of 'free' by Gnulib. (Bug#36649)
The unexec build on GNU/Linux must use HYBRID_MALLOC (gmalloc.c) and
sheap.c. This was inadvertently disabled because a configure-time
test for 'sbrk' was moved as side effect of an unrelated change.
* configure.ac: Test for 'sbrk' before using the result in the
decision about SYSTEM_MALLOC and HYBRID_MALLOC.
(HYBRID_MALLOC): Prevent Gnulib from redirecting 'free' to its
replacement 'rpl_free'.
* lib/Makefile.in (not_emacs_OBJECTS): Add mallooc/%.o and free.o.
* configure.ac (LD_SWITCH_SYSTEM_TEMACS) [mingw32]: Disable ASLR
when linking for unexec. Reported by Nikolay Kudryavtsev
<nikolay.kudryavtsev@gmail.com>.
If we're missing SECCOMP_SET_MODE_FILTER, the seccomp-filter build
fails. Reuse the existing HAVE_SECCOMP configuration variable, which
checks for these macros.
* configure.ac (HAVE_SECCOMP): Substitute in Makefile.in.
* lib-src/Makefile.in (HAVE_SECCOMP): New variable.
(SECCOMP_FILTER): Define only if HAVE_SECCOMP.
We need at list version 2.4.0 of libseccomp for seccomp-filter.c to
build cleanly.
* configure.ac: Use pkg-config to check for libseccomp.
* lib-src/Makefile.in (HAVE_LIBSECCOMP, LIBSECCOMP_LIBS)
(LIBSECCOMP_CFLAGS): New variables.
(SECCOMP_FILTER, seccomp-filter$(EXEEXT)): Use them.
It looks like these are not available on some versions of GNU/Linux,
breaking the build.
* configure.ac: Also check for needed seccomp macros.
* src/emacs.c (SECCOMP_USABLE): New macro.
(usage_message, main, standard_args): Use it.
The binary uses the 'seccomp' helper library. The library isn't
needed to load the generated Secure Computing filter.
* configure.ac: Check for 'seccomp' header and library.
* lib-src/seccomp-filter.c: New helper binary to generate a generic
Secure Computing filter for GNU/Linux.
* lib-src/Makefile.in (DONT_INSTALL): Add 'seccomp-filter' helper
binary if possible.
(all): Add Secure Computing filter file if possible.
(seccomp-filter$(EXEEXT)): Compile helper binary.
(seccomp-filter.bpf seccomp-filter.pfc): Generate filter files.
* test/src/emacs-tests.el (emacs-tests/seccomp/allows-stdout)
(emacs-tests/seccomp/forbids-subprocess): New unit tests.
* test/Makefile.in (src/emacs-tests.log): Add dependency on the helper
binary.
When passing this option on GNU/Linux, Emacs installs a Secure
Computing kernel system call filter. See Bug#45198.
* configure.ac: Check for seccomp header.
* src/emacs.c (usage_message): Document --seccomp option.
(emacs_seccomp): New wrapper for 'seccomp' syscall.
(load_seccomp, maybe_load_seccomp): New helper functions.
(main): Potentially load seccomp filters during startup.
(standard_args): Add --seccomp option.
* lisp/startup.el (command-line): Detect and ignore --seccomp option.
* test/src/emacs-tests.el (emacs-tests/seccomp/absent-file)
(emacs-tests/seccomp/empty-file)
(emacs-tests/seccomp/file-too-large)
(emacs-tests/seccomp/invalid-file-size): New unit tests.
(emacs-tests--with-temp-file): New helper macro.
* etc/NEWS: Document new --seccomp option.
* configure.ac: Set up CFLAGS and LDFLAGS to find a Homebrew
installation of libgccjit.
* Makefile.in (ELN_DESTDIR): Set to the app bundle resource dir when
required.
(install-eln): macOS install doesn't support the -D flag, so make the
directories separately.
This reverts commit f6c5f0dd5c.
Reason for this is that I overlooked few other suggestions and this
change has to be discussed before a final decision is taken.
* configure.ac: Also create lib/malloc and lib/deps/malloc
if the dynarray module is in use, as Gnulib regex will
start needing it due to recent glibc changes.
Without this fix, the build on AIX 7.2 with xlc fails in the ‘CCLD
temacs’ step with the diagnostic ‘ld: 0711-317 ERROR: Undefined
symbol: BC’. This is because -lcurses does not define BC etc.
* configure.ac: When building terminfo.o, define
TERMINFO_DEFINES_BC if the library defines BC etc.
* src/terminfo.c (UP, BC, PC): Define depending on
TERMINFO_DEFINES_BC, not on TERMINFO.
(cherry picked from commit 632917461a)
Without this fix, the build on AIX 7.2 with xlc fails in the ‘CCLD
temacs’ step with the diagnostic ‘ld: 0711-317 ERROR: Undefined
symbol: BC’. This is because -lcurses does not define BC etc.
* configure.ac: When building terminfo.o, define
TERMINFO_DEFINES_BC if the library defines BC etc.
* src/terminfo.c (UP, BC, PC): Define depending on
TERMINFO_DEFINES_BC, not on TERMINFO.
Without this fix, the build on AIX 7.2 with xlc fails in the ‘CCLD
temacs’ step with the diagnostic ‘ld: 0711-317 ERROR: Undefined
symbol: BC’. This is because -lcurses does not define BC etc.
* configure.ac: When building terminfo.o, define
TERMINFO_DEFINES_BC if the library defines BC etc.
* src/terminfo.c (UP, BC, PC): Define depending on
TERMINFO_DEFINES_BC, not on TERMINFO.
* configure.ac: Require IOSurface framework.
* src/nsterm.h: New EmacsSurface class and update EmacsView
definitions.
* src/nsterm.m (ns_update_end):
(ns_unfocus): Use new unfocusDrawingBuffer method.
(ns_draw_window_cursor): Move ns_focus to before we set colors.
([EmacsView dealloc]):
([EmacsView viewDidResize:]): Handle new EmacsSurface class.
([EmacsView initFrameFromEmacs:]): Remove reference to old method.
([EmacsView createDrawingBuffer]): Remove method.
([EmacsView focusOnDrawingBuffer]):
([EmacsView windowDidChangeBackingProperties:]): Use new EmacsSurface
class.
([EmacsView unfocusDrawingBuffer]): New method.
([EmacsView copyRect:to:]): Get information from the context instead
of direct from the IOSurface.
([EmacsView updateLayer]): Use new EmacsSurface class.
([EmacsView copyRect:to:]): Use memcpy to copy bits around instead of
using NS image functions.
([EmacsSurface initWithSize:ColorSpace:]):
([EmacsSurface dealloc]):
([EmacsSurface getSize]):
([EmacsSurface getContext]):
([EmacsSurface releaseContext]):
([EmacsSurface getSurface]):
([EmacsSurface copyContentsTo:]): New class and methods.
* configure.ac: Instead of AC_CHECK_HEADER, use AC_COMPILE_IFELSE
with X11/Intrinsic.h when checking for X11/extensions/Xrender.h.
This suppresses a bogus "report a bug to bug-gnu-emacs" diagnostic
from 'configure' in Solaris 10.
(SETUP_SLAVE_PTY): Adjust to recent renaming of forkin to
std_in in callproc.c. Needed on Solaris and Unixware.
* lib-src/Makefile.in (LIB_GETRANDOM, LIBS_ETAGS): New vars,
needed because on Solaris 10 the Gnulib tempname module now needs
the -lrt library for clock_gettime. Throw in the LIB_GETRANDOM
stuff too while we’re at it; from getrandom.m4 it seems to be
needed for MingW.
(LIBS_MOVE, etags_libs): Use them.
* src/callproc.c [SETUP_SLAVE_PTY]: Include sys/stream.h
and sys/stropts.h, for SETUP_SLAVE_PTY’s definiens.
* src/process.c [NEED_BSDTTY]: Don’t include bsdtty.h; hasn’t been
needed in years.
[USG5_4]: Don’t include sys/stream.h or sys/stropts.h; these
directives havbe been moved to callproc.c because the only use of
SETUP_SLAVE_PTY is there now.
