The HAVE_DECL_xxx defines are always defined to 0 or 1. The current
defines.h logic assumes every HAVE_xxx symbol is only defined iff it's
defined to 1 which causes this to break. Tweak the sed logic to only
match defines of 1.
The common igen code was forked from the ppc long ago. The filter
module is still pretty similar in API, so we can unfork them with
a little bit of effort.
The filter.c module is still here because of the unique it_is API.
The common igen code doesn't seem to have an equiv API as this only
operates on two strings and not an actual filter object, and it's
easy enough to leave behind to unfork the rest.
The common igen code was forked from the ppc long ago. The lf module
is still pretty similar in API, so we can unfork them with a little
bit of effort.
Some of the generated ppc code is now slightly different, but that's
because of fixes the common igen code has gained, but not the ppc igen
code (e.g. fixing of #line numbers).
The ppc code retains lf_print__c_code because the common igen code
rewrote the logic to a new table.c API. Let's delay that in the ppc
code to at least unfork all this code.
The common sim-endian is a forked & updated version of the ppc code.
Fortunately, they didn't diverge from the basic APIs, so they are
still compatible, which means we can just delete the ppc version now
that the build env is merged at the top-level.
The objects are still compiled in the subdir, but the creation of the
archive itself is in the top-level. This is a required step before we
can move compilation itself up, and makes it easier to review.
The downside is that each object compile is a recursive make instead of
a single one. It adds some overhead, so it's not great, but it shouldn't
be a big deal. This will go away once compilation is hoisted up.
The common igen code provides the same misc APIs as the ppc version,
so delete the ppc code and pull in the common one. There is one
minor difference: the ppc code has a unique dumpf function. The
common code switched to lf_printf for the same functionality, but
since that requires changes throughout the igen codebase, delay that
cleanup for now so we can merge the rest.
Now that both igen implementations are in the top-level, we can unify
the filter_filename implementation between them since they're the same
(literally the same code).
This simplifies the build a bit (especially for deps in port subdirs),
and avoids recursive make. This in turn speeds up the build, and lets
us reuse existing build-time vs host-time logic from Makefile.am.
This has never been installed, and it's not clear anyone cares about
it in the local build dir (when the main program is sim/ppc/run), so
drop all the logic to simplify.
This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
Simplify the build by moving the generation of these files from
build-time (via dgen.c that we have to compile & execute on the
build system) to maintainer/release mode (via spreg-gen.py that
we only ever execute when the spreg table actually changes). It
speeds up the build process and makes it easier for us to reason
about & review changes to the code generator.
The tool is renamed from "dgen" because it's hardcoded to only
generated spreg files. It isn't a generalized tool for creating
lookup tables.
Automake will run each subdir individually before moving on to the next
one. This means that the linking phase, a single threaded process, will
not run in parallel with anything else. When we have to link ~32 ports,
that's 32 link steps that don't take advantage of parallel systems. On
my really old 4-core system, this cuts a multi-target build from ~60 sec
to ~30 sec. We eventually want to move all compile+link steps to this
common dir anyways, so might as well move linking now for a nice speedup.
We use noinst_PROGRAMS instead of bin_PROGRAMS because we're taking care
of the install ourselves rather than letting automake process it.
This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
The ## marker tells automake to not include the comment in its
generated output, so use that in most places where the comment
only makes sense in the inputs.
