Disable PPC and PPC64 dynrec backends for now

Upstream SVN r4424 started refactorization of cpu module, and it breaks
those backends; to be re-enabled once refactorization is done or when
we'll have time to fix it ourselves.

meson.build

@@ -113,9 +113,11 @@ if host_machine.endian() == 'big'
 endif
 
 # Non-4K memory page size is supported only for ppc64 at the moment.
-if host_machine.cpu_family() in ['ppc64', 'ppc64le']
-  conf_data.set('PAGESIZE', 65536)
-endif
+# TODO re-enable ppc dynrec while working on W^X stuff
+#      disabled because SVN r4424 broke compilation of ppc backends
+#if host_machine.cpu_family() in ['ppc64', 'ppc64le']
+#  conf_data.set('PAGESIZE', 65536)
+#endif
 
 set_prio_code = '''
 #include <sys/resource.h>

src/cpu/meson.build

@@ -16,9 +16,9 @@ core_selection = [
   [ 'aarch64', ['auto', 'dynrec'],  'C_DYNREC',      'ARMV8LE', 1 ],
   [ 'arm',     ['auto', 'dynrec'],  'C_DYNREC',      'ARMV7LE', 1 ],
 # [  ???       ['auto', 'dynrec'],  'C_DYNREC',      'ARMV4LE', 0 ], # ARMv6 or older (?)
-  [ 'ppc64',   ['auto', 'dynrec'],  'C_DYNREC',      'PPC64LE', 1 ], # for meson >= 0.47.2
-  [ 'ppc64le', ['auto', 'dynrec'],  'C_DYNREC',      'PPC64LE', 1 ], # for meson <  0.47.2
-  [ 'ppc',     ['auto', 'dynrec'],  'C_DYNREC',      'POWERPC', 1 ],
+# [ 'ppc64',   ['auto', 'dynrec'],  'C_DYNREC',      'PPC64LE', 1 ], # for meson >= 0.47.2 # SVN r4424 broke compilation of PPC64 backend
+# [ 'ppc64le', ['auto', 'dynrec'],  'C_DYNREC',      'PPC64LE', 1 ], # for meson <  0.47.2 # SVN r4424 broke compilation of PPC64 backend
+# [ 'ppc',     ['auto', 'dynrec'],  'C_DYNREC',      'POWERPC', 1 ],                       # SVN r4424 broke compilation of PPC backend
 # [ 'mips',    ['auto', 'dynrec'],  'C_DYNREC',      'MIPSEL',  ? ], # disabled in old buildsystem, but code is still there
 ]