>>> rocksdb 6.13.3 Extracting
gzip -d -c /home/giuliobenetti/autobuild/run/instance-2/dl/rocksdb/rocksdb-6.13.3.tar.gz | tar --strip-components=1 -C /home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.13.3   -xf -
>>> rocksdb 6.13.3 Patching

Applying 0001-build_tools-build_detect_platform-fix-C-tests.patch using patch: 
patching file build_tools/build_detect_platform
Hunk #2 succeeded at 283 (offset 38 lines).
Hunk #3 succeeded at 299 (offset 38 lines).
Hunk #4 succeeded at 314 (offset 38 lines).
Hunk #6 succeeded at 332 (offset 47 lines).
Hunk #7 succeeded at 345 (offset 46 lines).
Hunk #8 succeeded at 358 (offset 46 lines).
Hunk #9 succeeded at 371 (offset 46 lines).
Hunk #10 succeeded at 385 (offset 46 lines).
Hunk #11 succeeded at 398 (offset 46 lines).
Hunk #12 succeeded at 412 (offset 46 lines).
Hunk #13 succeeded at 425 (offset 46 lines).
Hunk #14 succeeded at 446 (offset 46 lines).
Hunk #15 succeeded at 455 (offset 46 lines).
Hunk #16 succeeded at 470 (offset 46 lines).
Hunk #18 succeeded at 501 (offset 62 lines).
Hunk #19 succeeded at 513 (offset 62 lines).
Hunk #20 succeeded at 530 (offset 62 lines).
Hunk #21 succeeded at 542 (offset 62 lines).
Hunk #22 succeeded at 556 (offset 62 lines).
Hunk #23 succeeded at 570 (offset 62 lines).
Hunk #24 succeeded at 584 (offset 62 lines).
Hunk #25 succeeded at 598 (offset 62 lines).
Hunk #26 succeeded at 679 (offset 76 lines).
Hunk #27 succeeded at 693 (offset 76 lines).
Hunk #28 succeeded at 710 (offset 76 lines).
Hunk #29 succeeded at 725 (offset 76 lines).
Hunk #32 succeeded at 770 (offset 104 lines).
Hunk #33 succeeded at 790 (offset 105 lines).

Applying 0002-POWER7-8-compatiblity-fix-CRC32-C-implementation.patch using patch: 
patching file CMakeLists.txt
Hunk #3 succeeded at 258 with fuzz 2 (offset 18 lines).
Hunk #4 succeeded at 542 (offset 18 lines).
Hunk #5 succeeded at 823 (offset 28 lines).
patching file Makefile
Hunk #1 succeeded at 149 (offset 5 lines).
Hunk #2 succeeded at 490 (offset 36 lines).
Hunk #3 succeeded at 2240 (offset -3 lines).
patching file src.mk
Hunk #1 succeeded at 264 (offset 9 lines).
patching file util/crc32c.cc
patching file util/crc32c_ppc.c
patching file util/crc32c_ppc.cc
patching file util/crc32c_ppc.h
patching file util/crc32c_ppc_asm.S
patching file util/crc32c_ppc_clang_workaround.h
patching file util/crc32c_ppc_constants.h
patching file util/crc32c_test.cc
>>> rocksdb 6.13.3 Configuring
>>> rocksdb 6.13.3 Building
PATH="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin:/home/giuliobenetti/autobuild/run/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" AR="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-ar" AS="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-as" LD="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-ld" NM="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-nm" CC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-gcc" GCC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-gcc" CPP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-cpp" CXX="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-g++" FC="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-gfortran" F77="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-gfortran" RANLIB="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-ranlib" READELF="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-readelf" STRIP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-strip" OBJCOPY="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-objcopy" OBJDUMP="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/giuliobenetti/autobuild/run/instance-2/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/giuliobenetti/autobuild/run/instance-2/output-1/host/lib -Wl,-rpath,/home/giuliobenetti/autobuild/run/instance-2/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-as" DEFAULT_LINKER="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/sh4-linux-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static" CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -static -static" LDFLAGS=" -static" FCFLAGS=" -Os  -static" FFLAGS=" -Os  -static" PKG_CONFIG="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/bin/pkg-config" STAGING_DIR="/home/giuliobenetti/autobuild/run/instance-2/output-1/host/sh4-buildroot-linux-uclibc/sysroot" INTLTOOL_PERL=/usr/bin/perl /usr/bin/make -j5 PORTABLE=1 PREFIX=/usr ROCKSDB_DISABLE_BZ2=0 ROCKSDB_DISABLE_GFLAGS=1 ROCKSDB_DISABLE_JEMALLOC=1 ROCKSDB_DISABLE_LZ4=1 ROCKSDB_DISABLE_SNAPPY=1 ROCKSDB_DISABLE_ZLIB=0 ROCKSDB_DISABLE_ZSTD=1 USE_LTO=0 EXTRA_CXXFLAGS="-DROCKSDB_NO_DYNAMIC_EXTENSION" -C /home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.13.3 static_lib
make[1]: Entering directory '/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.13.3'
$DEBUG_LEVEL is 0
  GEN      util/build_version.cc
$DEBUG_LEVEL is 0
  GEN      util/build_version.cc
  CC       cache/cache.o
  CC       cache/clock_cache.o
  CC       cache/lru_cache.o
  CC       cache/sharded_cache.o
  CC       db/arena_wrapped_db_iter.o
  CC       db/blob/blob_file_addition.o
  CC       db/blob/blob_file_builder.o
  CC       db/blob/blob_file_garbage.o
  CC       db/blob/blob_file_meta.o
  CC       db/blob/blob_log_format.o
  CC       db/blob/blob_log_reader.o
  CC       db/blob/blob_log_writer.o
  CC       db/builder.o
  CC       db/c.o
  CC       db/column_family.o
  CC       db/compacted_db_impl.o
  CC       db/compaction/compaction.o
  CC       db/compaction/compaction_iterator.o
  CC       db/compaction/compaction_job.o
  CC       db/compaction/compaction_picker.o
  CC       db/compaction/compaction_picker_fifo.o
  CC       db/compaction/compaction_picker_level.o
  CC       db/compaction/compaction_picker_universal.o
  CC       db/compaction/sst_partitioner.o
  CC       db/convenience.o
  CC       db/db_filesnapshot.o
  CC       db/db_impl/db_impl.o
  CC       db/db_impl/db_impl_compaction_flush.o
  CC       db/db_impl/db_impl_debug.o
  CC       db/db_impl/db_impl_experimental.o
  CC       db/db_impl/db_impl_files.o
  CC       db/db_impl/db_impl_open.o
  CC       db/db_impl/db_impl_readonly.o
  CC       db/db_impl/db_impl_secondary.o
  CC       db/db_impl/db_impl_write.o
  CC       db/db_info_dumper.o
  CC       db/db_iter.o
  CC       db/dbformat.o
  CC       db/error_handler.o
  CC       db/event_helpers.o
  CC       db/experimental.o
  CC       db/external_sst_file_ingestion_job.o
  CC       db/file_indexer.o
  CC       db/flush_job.o
  CC       db/flush_scheduler.o
  CC       db/forward_iterator.o
  CC       db/import_column_family_job.o
  CC       db/internal_stats.o
  CC       db/logs_with_prep_tracker.o
  CC       db/log_reader.o
  CC       db/log_writer.o
  CC       db/malloc_stats.o
  CC       db/memtable.o
  CC       db/memtable_list.o
  CC       db/merge_helper.o
  CC       db/merge_operator.o
  CC       db/range_del_aggregator.o
  CC       db/range_tombstone_fragmenter.o
  CC       db/repair.o
  CC       db/snapshot_impl.o
  CC       db/table_cache.o
  CC       db/table_properties_collector.o
  CC       db/transaction_log_impl.o
  CC       db/trim_history_scheduler.o
  CC       db/version_builder.o
  CC       db/version_edit.o
  CC       db/version_edit_handler.o
  CC       db/version_set.o
  CC       db/wal_edit.o
  CC       db/wal_manager.o
  CC       db/write_batch.o
  CC       db/write_batch_base.o
  CC       db/write_controller.o
  CC       db/write_thread.o
  CC       env/env.o
  CC       env/env_chroot.o
  CC       env/env_encryption.o
  CC       env/env_hdfs.o
  CC       env/env_posix.o
  CC       env/file_system.o
  CC       env/fs_posix.o
  CC       env/file_system_tracer.o
  CC       env/io_posix.o
  CC       env/mock_env.o
  CC       file/delete_scheduler.o
  CC       file/file_prefetch_buffer.o
  CC       file/file_util.o
  CC       file/filename.o
  CC       file/random_access_file_reader.o
  CC       file/read_write_util.o
  CC       file/readahead_raf.o
  CC       file/sequence_file_reader.o
  CC       file/sst_file_manager_impl.o
  CC       file/writable_file_writer.o
  CC       logging/auto_roll_logger.o
  CC       logging/event_logger.o
  CC       logging/log_buffer.o
  CC       memory/arena.o
  CC       memory/concurrent_arena.o
  CC       memory/jemalloc_nodump_allocator.o
  CC       memory/memkind_kmem_allocator.o
  CC       memtable/alloc_tracker.o
  CC       memtable/hash_linklist_rep.o
  CC       memtable/hash_skiplist_rep.o
In file included from memory/concurrent_arena.cc:10:
./memory/concurrent_arena.h: In member function 'virtual char* rocksdb::ConcurrentArena::AllocateAligned(size_t, size_t, rocksdb::Logger*)':
./memory/concurrent_arena.h:67:3: error: unable to find a register to spill in class 'R0_REGS'
   }
   ^
./memory/concurrent_arena.h:67:3: error: this is the insn:
(insn 193 192 194 10 (parallel [
            (set (subreg:SI (reg:QI 292) 0)
                (unspec_volatile:SI [
                        (mem/v:QI (reg/f:SI 2 r2 [orig:172 _26 ] [172]) [-1  S1 A8])
                        (reg:QI 291)
                        (reg:QI 294)
                    ] UNSPECV_CMPXCHG_1))
            (set (mem/v:QI (reg/f:SI 2 r2 [orig:172 _26 ] [172]) [-1  S1 A8])
                (unspec_volatile:QI [
                        (const_int 0 [0])
                    ] UNSPECV_CMPXCHG_2))
            (set (reg:SI 147 t)
                (unspec_volatile:SI [
                        (const_int 0 [0])
                    ] UNSPECV_CMPXCHG_3))
            (clobber (scratch:SI))
            (clobber (reg:SI 0 r0))
            (clobber (reg:SI 1 r1))
        ]) "/home/giuliobenetti/autobuild/run/instance-2/output-1/host/opt/ext-toolchain/sh4-buildroot-linux-uclibc/include/c++/8.3.0/bits/atomic_base.h":434 401 {atomic_compare_and_swapqi_soft_gusa}
     (expr_list:REG_DEAD (reg:QI 294)
        (expr_list:REG_DEAD (reg:QI 291)
            (expr_list:REG_DEAD (reg/f:SI 2 r2 [orig:172 _26 ] [172])
                (expr_list:REG_UNUSED (reg:SI 1 r1)
                    (expr_list:REG_UNUSED (reg:SI 0 r0)
                        (nil)))))))
./memory/concurrent_arena.h:67: confused by earlier errors, bailing out
make[1]: *** [Makefile:2250: memory/concurrent_arena.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.13.3'
make: *** [package/pkg-generic.mk:250: /home/giuliobenetti/autobuild/run/instance-2/output-1/build/rocksdb-6.13.3/.stamp_built] Error 2
make: Leaving directory '/home/giuliobenetti/autobuild/run/instance-2/buildroot'