If we allow users to specify log functions, we should also allow them to
pass a context. This isn't used internally, but may be needed by external
users so provide it.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Add gcc attributes so the printf formats are correctly checked. This
causes a lot of warnings which will be fixed in the following commits.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Sorry for the big commit, but I was working on the wlterm application and
then thought I can rework the whole configure-logic again. This mainly
renames all build-defines to BUILD_DEFINE_* and BUILD_HAVE_* and allows
specifying which applications to build via --enable-kmscon/--enable-wlterm
and similar.
wlterm is a new application which is a native wayland client with no
external dependencies. It serves several purposes:
* It uses TSM (not yet implemented, but will come soon) to create a
console independent from kmscon. This shows how TSM can easily be used
to create independent terminal emulators.
* It is a native wayland application (probably the first independent
wayland app so far?) and is used to test how well the wayland API
works. As wayland is still under heavy development, we need more
application-writers who report back whether the wayland-API makes
sense to them and whether it works correctly.
* A proper terminal-emulator for wayland! There is currently no proper
emulator so we really need something that we can work with.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Instead of doing nothing we now pass everything to log_dummyf() if a
logging macro is not enabled. This silences all the "unused variable"
warnings which are really annoying.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The kernel defines 8 severities. Lets be compatible to these numbers so
our API will not have to be changes in the future.
This also causes LOG_ALERT to be added. It is not used, yet, but may be in
the future.
We also change the parameter type of severities to "unsigned int". Enum
variables can change types if new enums are added. We don't want that so
use a fixed type.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Suppress debug, info, notice and warning messages if --silent is given.
This is overwritten by --debug and --verbose.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
The new logger is much more powerful, allows online log-filter
modifications and precise debugging. We still avoid heavy file-operations
as we rely on the caller to forward stderr to a log-file and perform
log-rotations. However, we now provide a simple way to perform this
forward inside the application.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
config.h is meant to be around in all files, as it contains stuff like
_GNU_SOURCE, NDEBUG and HAVE_*.
Make these definitions available without needing to #include config.h
every single time.
Signed-off-by: Ran Benita <ran234@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
log_warn is much shorter and we already use log_err instead of log_error
so this is more consistent now.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
We simply forward all log messages to stderr. We use syslog/prink-like severity
prefixes. Use systemd or alike to forward stderr to syslog, kernel-log or
similar.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
