Add support for a mutex lock that consumes only one bit of storage
inside of an integer on systems that support futexes. Futex is emulated
(at a higher cost) on systems that don't have it -- but only in the
contended case.
In the case of an empty file, return NULL instead of "". This means
that the return result of g_mapped_file_get_contents() will always be
page-aligned.
Re-using glibc's __abort_msg symbol causes linking problems, since the symbol
is declared private. Always use our own__glib_abort_msg symbol to store
assertion messages, to avoid compatibility and linking problems.
Also fix the test case to work with out of tree builds (such as "make
distcheck"), and re-enable it.
https://bugzilla.gnome.org/show_bug.cgi?id=594872
Fixes: Bug 568760 - nautilus freezes due to a bug in garray.c:322
* glib/garray.c: increase the size of potential return values by
using an unsigned result; properly check if we still handle valid size
proposals, return the original request if there's no usable size left
* tests/array-test.c: reproduce the error condition of the bug report
Since gobject now initialized threads unconditionally if threads are
available it makes no sense to have each thread operation
conditionally check if threads are enables, so allow this to be avoided.
https://bugzilla.gnome.org/show_bug.cgi?id=606775
Crash interception/debugging systems like Apport or ABRT capture core dumps for
later crash analysis. However, if a program exits with an assertion failure,
the core dump is not useful since the assertion message is only printed to
stderr.
glibc recently got a patch which stores the message of assert() into the
__abort_msg global variable.
(http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=48dcd0ba)
That works fine for programs which actually use the standard C assert() macro.
This patch adds the same functionality for glib's assertion tests. If we are
building against a glibc which already has __abort_msg (2.11 and later, or
backported above git commit), use that, otherwise put it into our own field
__glib_assert_msg.
Usage:
$ cat test.c
#include <glib.h>
int main() {
g_assert(1 < 0);
return 0;
}
$ ./test
**ERROR:test.c:5:main: assertion failed: (1 < 0)
Aborted (Core dumped)
$ gdb --batch --ex 'print (char*) __abort_msg' ./test core
[...]
$1 = 0x93bf028 "ERROR:test.c:5:main: assertion failed: (1 < 0)"
https://bugzilla.gnome.org/show_bug.cgi?id=594872
One of the option context tests relied on the ability to
call g_set_pgrname() more than once. Thats no longer possible
(without incurring a warning that wrecks the test).
