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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.
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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.
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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.
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The common/ code has macros with the same name but different behavior:
it's for declaring integer constants as 64-bit, not for casting them.
Rename ppc's local variant since it's only used in this file in order
to avoid conflicts.
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This will make it easier to share common/ code that rely on these
additional defines.
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This removes all recursive makes from the ppc port.
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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.
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Invoke ppc's igen from the top-level like we do for all other ports.
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Now that the ppc configure script is just namespaced options, we can
move it to ppc/acinclude.m4 and include it directly in the top-level
configure script and kill off the last subdir configure script.
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To prepare for moving these into the top-level configure, namespace
then with the port name like we do with all other ports.
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Switch from ad-hoc $silent checks & echo calls to standard
AC_MSG_CHECKING & AC_MSG_RESULT calls. Also delete pointless
variable setting after calling AC_MSG_ERROR.
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Since we rely on the top-level config.h now, the defines.h generation
step should live here too.
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Now that the ppc script only checks configure options and sets up
variables in the Makefile from those, delete all the compile related
logic to greatly simplify the configure script.
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Now that everything has moved to the top-level, we can drop the
custom ppc config.h and reuse the common one.
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The common sim code doesn't snoop in gdb/, and the ppc code doesn't
need to either. Any common code we pull from gnulib/ now only.
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This is the last compile-time logic in the ppc subdir.
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This macro replaces the AC_MSG_CHECKING+AC_CACHE_VAL+AC_MSG_RESULT
which reduces the boilerplate in here a little bit.
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This covers a lot of the AC_MSG_CHECKING+AC_TRY_COMPILE+AC_MSG_RESULT
boilerplate and matches what we do in the top-level platform checks.
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Move the defines from explicit -D options to config.h defines to simplify
the build and make it easier to move to the top-level configure.
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While the sim code doesn't utilize HAVE_LONG_LONG itself, other code
(like libiberty) seem to, so check for it in the top-level for all
ports to leverage.
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Now that the sysv tests turn into config.h defines and everything
checks that, we can move the tests to the top-level and out of the
ppc subdir.
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Move the stub logic to the device files themselves. This makes the
configure & build logic more static which will make it easier to move
to the top-level build, and matches what we did with the common/ hw
tree already.
This also decouples the logic from the two -- in the past, you needed
both sem & shm in order to enable the device models, but now each one
is tied to its own independent knob. Practically speaking, this will
probably not make a difference, but it simplifies the build a bit.
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Instead of executing code to see if SysV semaphores & shared memory
are available, switch to just a compile-time test. The system used
to compile might not match the system used to run the code wrt the
current kernel & OS settings, but the library APIs should. So move
the failures from compile-time to runtime so the program is more
portable, and works correctly even when cross-compiling.
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Compile tests can use earlier defines, so hoist the HAVE_UNION_SEMUN
define to before the semaphore check, and use it in the test so that
we can merge the 2 versions into one.
This also defines HAVE_UNION_SEMUN even when ac_cv_sysv_sem is not
set, but that's OK as this define is only about a type existing, not
about whether the overall code is usable.
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The first arg is the cache var name, and this one was typoed relative
to what the call actually set. We also don't need the manual call to
AC_MSG_RESULT as the AC_CACHE_CHECK takes care of it for us.
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These should have been removed as part of the ppc/igen merging into the
top-level, but they were missed. Clean up now.
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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.
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Switch to an ERROR macro and tweak the error signature to match the
common igen version in preparation for merging the two implementations.
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We want to avoid conflicts with the common igen enums. This should
get migrated over to the common parsing logic, but for now, switch
the name to avoid redefinition.
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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).
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The lbasename function from libiberty provides the same API as this
custom function. The common/ code already made the switch, so make
the same change to the ppc code to avoid target duplication.
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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.
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This header is only used by the igen tool, and none of the igen code
depends on the configure-time checks. Delete the logic to simplify
to prepare for moving it to the local.mk code.
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Switch this from a build-time generation to a static include. This
makes the build rules a bit simpler, especially as we move them to
Automake from hand-written makefiles.
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This is never set anywhere, so it's always empty. Scrub it.
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I noticed a typo in a sim constant. This patch fixes it.
permenant -> permanent
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Use a local name in the macro to avoid shadowing wherever it's used.
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We weren't using the enable_p flag to see whether the option should
be enabled or disabled, and we weren't breaking out when done parsing.
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Replace some fall through comments with the attribute.
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We'll replace various /* fall through */ comments so compilers can
actually understand what the code is doing.
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I don't know what this emulation does exactly, but it missing a break
statement seems kind of obvious based on the 32-bit case above it.
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This helps the compiler with optimization and fixes fallthru warnings.
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This code tries to use attach_type enums as hw_phb_decode, and while
they're setup to have compatible values, the compiler doesn't like it
when the cast is missing. So cast it explicitly and then use that.
sim/ppc/hw_phb.c:322:28: error:
implicit conversion from enumeration type 'attach_type'
(aka 'enum _attach_type') to different enumeration type
'hw_phb_decode' [-Werror,-Wenum-conversion]
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