This restores the reverted-commit ed8634d:
Author: Dan Winship <danw@gnome.org>
Date: Mon Apr 5 14:05:52 2010 -0400
g_callable_info_prepare_closure: handle mmap permissions error
When SELinux or similar is active, a process may not be able to mmap()
a segment that is both writable and executable, which would causing
g_callable_info_prepare_closure() to fail. Libffi has a workaround for
this problem though (it maps the same non-anonymous region twice, once
writable and once executable, and returns two separate pointers to
it), so use that.
But with an added fix, when using ffi_closure_alloc(), we need to use
ffi_prep_closure_loc() so we can pass in the executable address of the
trampoline separately from the writable address, rather than the
deprecated ffi_prep_closure().
https://bugzilla.gnome.org/show_bug.cgi?id=615105
This reverts commit ed8634ddf73a56cb1935fd87254b3c6c04352893.
This commit caused crashes in gjs/gnome-shell, which we're still trying
to track down. See: http://bugzilla.gnome.org/615078
When SELinux or similar is active, a process may not be able to mmap()
a segment that is both writable and executable, which would causing
g_callable_info_prepare_closure() to fail. Libffi has a workaround for
this problem though (it maps the same non-anonymous region twice, once
writable and once executable, and returns two separate pointers to
it), so use that.
https://bugzilla.gnome.org/show_bug.cgi?id=614903
Rather than having bindings use g_function_info_invoke, which is basically
a toy/demo API, export a convenience utility function which takes the introspection
information and sets up things we need to pass to libffi.
Then invocation can be done directly to libffi by a binding.
As part of this work, remove some (unused by gjs) public functions from the
girffi API, and instead export a function to map to libffi which can work
semi-correctly.
https://bugzilla.gnome.org/show_bug.cgi?id=604074
Due to a missing header, gobject-introspection fails to compile on OpenBSD.
And only due to headers-including-headers practice this doesn't blow up on
many other platforms.
https://bugzilla.gnome.org/show_bug.cgi?id=596226
Add type tags for short and ushort, plus all of the requisite code needed
to utilize them in libgirepository.
Add support in the scanner's AST files.
Add test functions to the everything library and the expected gir file.
gtypelib.c constant validation fixed by Colin Walters <walters@verbum.org>
Extract a function to convert GITypeTag to ffi_type from the internals
of ginvoke.c. This will be useful in figure out structure alignment.
Also fix handling of gsize and time_t to be portable. (Add a check
to configure.ac to figure out the width of time_t.)
svn path=/trunk/; revision=873
