# git rev-parse -q --verify f511c0b17b081562dca8ac5061dfa86db4c66cc2^{commit} f511c0b17b081562dca8ac5061dfa86db4c66cc2 already have revision, skipping fetch # git checkout -q -f -B kisskb f511c0b17b081562dca8ac5061dfa86db4c66cc2 # git clean -qxdf # git log -1 commit f511c0b17b081562dca8ac5061dfa86db4c66cc2 Author: Linus Torvalds Date: Tue May 30 12:38:59 2017 -0700 "Yes, people use FOLL_FORCE ;)" This effectively reverts commit 8ee74a91ac30 ("proc: try to remove use of FOLL_FORCE entirely") It turns out that people do depend on FOLL_FORCE for the /proc//mem case, and we're talking not just debuggers. Talking to the affected people, the use-cases are: Keno Fischer: "We used these semantics as a hardening mechanism in the julia JIT. By opening /proc/self/mem and using these semantics, we could avoid needing RWX pages, or a dual mapping approach. We do have fallbacks to these other methods (though getting EIO here actually causes an assert in released versions - we'll updated that to make sure to take the fall back in that case). Nevertheless the /proc/self/mem approach was our favored approach because it a) Required an attacker to be able to execute syscalls which is a taller order than getting memory write and b) didn't double the virtual address space requirements (as a dual mapping approach would). I think in general this feature is very useful for anybody who needs to precisely control the execution of some other process. Various debuggers (gdb/lldb/rr) certainly fall into that category, but there's another class of such processes (wine, various emulators) which may want to do that kind of thing. Now, I suspect most of these will have the other process under ptrace control, so maybe allowing (same_mm || ptraced) would be ok, but at least for the sandbox/remote-jit use case, it would be perfectly reasonable to not have the jit server be a ptracer" Robert O'Callahan: "We write to readonly code and data mappings via /proc/.../mem in lots of different situations, particularly when we're adjusting program state during replay to match the recorded execution. Like Julia, we can add workarounds, but they could be expensive." so not only do people use FOLL_FORCE for both reads and writes, but they use it for both the local mm and remote mm. With these comments in mind, we likely also cannot add the "are we actively ptracing" check either, so this keeps the new code organization and does not do a real revert that would add back the original comment about "Maybe we should limit FOLL_FORCE to actual ptrace users?" Reported-by: Keno Fischer Reported-by: Robert O'Callahan Cc: Kees Cook Cc: Andy Lutomirski Cc: Eric Biederman Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-gcc --version # < git log --format=%s --max-count=1 f511c0b17b081562dca8ac5061dfa86db4c66cc2 # < make -j 48 ARCH=blackfin O=/home/kisskb/slave/build/linus_CM-BF537U_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- CM-BF537U_defconfig # make -j 48 ARCH=blackfin O=/home/kisskb/slave/build/linus_CM-BF537U_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- make[1]: Entering directory '/home/kisskb/slave/build/linus_CM-BF537U_defconfig_bfin' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release GEN ./Makefile WRAP arch/blackfin/include/generated/asm/auxvec.h WRAP arch/blackfin/include/generated/asm/bitsperlong.h WRAP arch/blackfin/include/generated/asm/bugs.h WRAP arch/blackfin/include/generated/asm/current.h WRAP arch/blackfin/include/generated/asm/device.h WRAP arch/blackfin/include/generated/asm/div64.h WRAP arch/blackfin/include/generated/asm/emergency-restart.h WRAP arch/blackfin/include/generated/asm/errno.h CHK include/generated/uapi/linux/version.h WRAP arch/blackfin/include/generated/asm/extable.h WRAP arch/blackfin/include/generated/asm/fb.h WRAP arch/blackfin/include/generated/asm/futex.h WRAP arch/blackfin/include/generated/asm/hw_irq.h UPD include/generated/uapi/linux/version.h WRAP arch/blackfin/include/generated/asm/ioctl.h WRAP arch/blackfin/include/generated/asm/ipcbuf.h WRAP arch/blackfin/include/generated/asm/irq_regs.h WRAP arch/blackfin/include/generated/asm/irq_work.h WRAP arch/blackfin/include/generated/asm/kdebug.h WRAP arch/blackfin/include/generated/asm/kmap_types.h WRAP arch/blackfin/include/generated/asm/kvm_para.h WRAP arch/blackfin/include/generated/asm/local.h WRAP arch/blackfin/include/generated/asm/local64.h WRAP arch/blackfin/include/generated/asm/mcs_spinlock.h WRAP arch/blackfin/include/generated/asm/mm-arch-hooks.h WRAP arch/blackfin/include/generated/asm/mman.h WRAP arch/blackfin/include/generated/asm/msgbuf.h WRAP arch/blackfin/include/generated/asm/param.h WRAP arch/blackfin/include/generated/asm/percpu.h WRAP arch/blackfin/include/generated/asm/pgalloc.h WRAP arch/blackfin/include/generated/asm/preempt.h WRAP arch/blackfin/include/generated/asm/resource.h HOSTCC scripts/basic/bin2c WRAP arch/blackfin/include/generated/asm/sembuf.h WRAP arch/blackfin/include/generated/asm/serial.h WRAP arch/blackfin/include/generated/asm/setup.h WRAP arch/blackfin/include/generated/asm/shmbuf.h WRAP arch/blackfin/include/generated/asm/shmparam.h WRAP arch/blackfin/include/generated/asm/socket.h WRAP arch/blackfin/include/generated/asm/sockios.h WRAP arch/blackfin/include/generated/asm/statfs.h WRAP arch/blackfin/include/generated/asm/termbits.h WRAP arch/blackfin/include/generated/asm/termios.h WRAP arch/blackfin/include/generated/asm/topology.h WRAP arch/blackfin/include/generated/asm/trace_clock.h WRAP arch/blackfin/include/generated/asm/types.h WRAP arch/blackfin/include/generated/asm/ucontext.h WRAP arch/blackfin/include/generated/asm/unaligned.h WRAP arch/blackfin/include/generated/asm/user.h WRAP arch/blackfin/include/generated/asm/word-at-a-time.h WRAP arch/blackfin/include/generated/asm/xor.h WRAP arch/blackfin/include/generated/asm/kprobes.h UPD include/config/kernel.release Using /home/kisskb/slave/src as source for kernel CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h HOSTCC scripts/kallsyms CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s CHK include/generated/timeconst.h CC kernel/bounds.s CHK scripts/mod/devicetable-offsets.h UPD include/generated/timeconst.h UPD scripts/mod/devicetable-offsets.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/blackfin/kernel/asm-offsets.s MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh :1269:2: warning: #warning syscall accept4 not implemented [-Wcpp] :1299:2: warning: #warning syscall userfaultfd not implemented [-Wcpp] :1302:2: warning: #warning syscall membarrier not implemented [-Wcpp] :1305:2: warning: #warning syscall mlock2 not implemented [-Wcpp] :1308:2: warning: #warning syscall copy_file_range not implemented [-Wcpp] :1311:2: warning: #warning syscall preadv2 not implemented [-Wcpp] :1314:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] :1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp] :1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp] :1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp] :1326:2: warning: #warning syscall statx not implemented [-Wcpp] HOSTLD scripts/mod/modpost HOSTCC usr/gen_init_cpio CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o CC init/do_mounts_rd.o CC init/do_mounts_initrd.o CC init/calibrate.o CC init/initramfs.o CC init/init_task.o UPD include/generated/compile.h CC arch/blackfin/mm/sram-alloc.o CC arch/blackfin/mm/init.o CC arch/blackfin/mm/isram-driver.o CC arch/blackfin/mm/maccess.o CC init/version.o AS arch/blackfin/kernel/entry.o CC arch/blackfin/kernel/process.o AS arch/blackfin/mach-common/cache.o CC arch/blackfin/kernel/bfin_ksyms.o CC arch/blackfin/kernel/ptrace.o CC arch/blackfin/mach-bf537/dma.o AS arch/blackfin/mach-common/entry.o CC arch/blackfin/mach-bf537/ints-priority.o CC arch/blackfin/kernel/setup.o CC arch/blackfin/kernel/traps.o CC arch/blackfin/kernel/signal.o CC arch/blackfin/kernel/irqchip.o CC arch/blackfin/mach-common/cache-c.o AS arch/blackfin/mach-common/interrupt.o CC arch/blackfin/mach-common/pm.o AS arch/blackfin/mach-common/head.o CC arch/blackfin/kernel/sys_bfin.o CC arch/blackfin/mach-common/ints-priority.o CC arch/blackfin/kernel/flat.o AS arch/blackfin/kernel/fixed_code.o AS arch/blackfin/mach-common/dpmc_modes.o CC arch/blackfin/kernel/reboot.o CC arch/blackfin/kernel/dma-mapping.o CC arch/blackfin/kernel/bfin_dma.o CC arch/blackfin/kernel/dumpstack.o CC arch/blackfin/mach-common/arch_checks.o CC arch/blackfin/kernel/bfin_gpio.o CC arch/blackfin/kernel/cplbinfo.o CC arch/blackfin/kernel/exception.o CC arch/blackfin/kernel/time-ts.o CC arch/blackfin/kernel/shadow_console.o CC arch/blackfin/mach-bf537/boards/cm_bf537u.o CC arch/blackfin/kernel/module.o CC arch/blackfin/kernel/early_printk.o CC arch/blackfin/kernel/trace.o CC arch/blackfin/kernel/debug-mmrs.o CC arch/blackfin/kernel/cplb-nompu/cplbinit.o LDS arch/blackfin/kernel/vmlinux.lds CC arch/blackfin/kernel/cplb-nompu/cplbmgr.o LD arch/blackfin/mach-bf537/built-in.o LD certs/built-in.o GEN usr/initramfs_data.cpio.lz4 LD arch/blackfin/kernel/cplb-nompu/built-in.o AS usr/initramfs_data.o CC ipc/util.o CC ipc/msgutil.o CC kernel/fork.o CC ipc/sem.o CC security/commoncap.o CC ipc/ipc_sysctl.o CC ipc/syscall.o CC ipc/shm.o CC kernel/cpu.o CC kernel/panic.o CC kernel/exit.o CC kernel/signal.o CC ipc/msg.o CC kernel/softirq.o CC kernel/sysctl.o CC kernel/exec_domain.o CC kernel/resource.o CC kernel/sys.o CC kernel/sysctl_binary.o CC kernel/ptrace.o CC kernel/capability.o CC kernel/user.o CC kernel/kmod.o LD usr/built-in.o CC kernel/workqueue.o CC kernel/pid.o CC kernel/task_work.o LD arch/blackfin/mach-common/built-in.o LD arch/blackfin/mm/built-in.o CC kernel/kthread.o CC kernel/extable.o CC kernel/params.o CC kernel/sys_ni.o CC kernel/nsproxy.o CC kernel/notifier.o CC kernel/cred.o CC kernel/ksysfs.o CC kernel/reboot.o CC kernel/async.o CC mm/filemap.o CC crypto/api.o CC kernel/range.o LD arch/blackfin/mach-bf537/boards/built-in.o CC mm/mempool.o LD sound/built-in.o CC kernel/smpboot.o CC crypto/cipher.o CC kernel/ucount.o CC fs/open.o CC block/bio.o CC kernel/groups.o CC kernel/bpf/core.o LD firmware/built-in.o CC mm/oom_kill.o LD kernel/livepatch/built-in.o CC kernel/printk/printk.o CC kernel/freezer.o LD drivers/amba/built-in.o CC kernel/up.o CC kernel/rcu/update.o CC kernel/power/qos.o LD init/mounts.o CC kernel/locking/mutex.o CC kernel/irq/irqdesc.o LD init/built-in.o CC kernel/locking/semaphore.o CC kernel/module.o LD drivers/auxdisplay/built-in.o CC kernel/rcu/sync.o CC kernel/kallsyms.o GZIP kernel/config_data.gz CC kernel/utsname_sysctl.o CC kernel/elfcore.o CC kernel/irq_work.o CC kernel/membarrier.o CC kernel/memremap.o CC kernel/sched/core.o CC net/socket.o CC drivers/base/component.o CC kernel/time/time.o CHK kernel/config_data.h LD net/802/built-in.o CC drivers/base/core.o CC kernel/printk/printk_safe.o CC arch/blackfin/lib/ashldi3.o UPD kernel/config_data.h CC drivers/base/bus.o LD arch/blackfin/kernel/built-in.o CC kernel/configs.o CC net/bpf/test_run.o CC drivers/base/dd.o LD security/built-in.o CC kernel/rcu/srcutiny.o LD virt/lib/built-in.o LD virt/built-in.o CC arch/blackfin/lib/ashrdi3.o CC drivers/base/syscore.o CC kernel/rcu/tiny.o CC kernel/rcu/rcu_segcblist.o CC mm/maccess.o AS arch/blackfin/lib/divsi3.o AS arch/blackfin/lib/ins.o CC crypto/compress.o CC crypto/memneq.o AS arch/blackfin/lib/memchr.o CC arch/blackfin/lib/lshrdi3.o CC drivers/base/driver.o AS arch/blackfin/lib/memcmp.o CC mm/page_alloc.o AS arch/blackfin/lib/memcpy.o AS arch/blackfin/lib/memset.o AS arch/blackfin/lib/memmove.o CC kernel/locking/rwsem.o AS arch/blackfin/lib/modsi3.o AS arch/blackfin/lib/muldi3.o AS arch/blackfin/lib/outs.o CC kernel/irq/handle.o AS arch/blackfin/lib/smulsi3_highpart.o AS arch/blackfin/lib/strcmp.o CC mm/page-writeback.o AS arch/blackfin/lib/strncmp.o AS arch/blackfin/lib/strcpy.o AS arch/blackfin/lib/strncpy.o AS arch/blackfin/lib/udivsi3.o CC crypto/crypto_wq.o CC drivers/base/class.o CC mm/readahead.o LD ipc/built-in.o AS arch/blackfin/lib/umulsi3_highpart.o AS arch/blackfin/lib/umodsi3.o CC drivers/base/platform.o CC kernel/power/main.o CC kernel/power/process.o CC net/core/sock.o CC net/core/request_sock.o CC drivers/base/cpu.o CC drivers/base/firmware.o CC drivers/base/init.o CC kernel/locking/percpu-rwsem.o AR arch/blackfin/lib/lib.a CC net/core/skbuff.o CC kernel/locking/rwsem-spinlock.o CC mm/swap.o CC lib/lockref.o CC kernel/irq/manage.o EXPORTS arch/blackfin/lib/lib-ksyms.o CC kernel/time/timer.o CC fs/read_write.o CC mm/truncate.o LD arch/blackfin/lib/built-in.o CC mm/shmem.o CC mm/vmscan.o CC kernel/power/suspend.o CC mm/util.o CC drivers/base/map.o CC mm/mmzone.o CC lib/bcd.o CC drivers/base/devres.o CC drivers/base/attribute_container.o CC net/ethernet/eth.o CC crypto/algapi.o CC lib/div64.o CC kernel/time/hrtimer.o CC drivers/base/transport_class.o /home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /home/kisskb/slave/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] CC kernel/irq/spurious.o CC drivers/base/topology.o LD kernel/rcu/built-in.o CC crypto/scatterwalk.o CC drivers/base/container.o CC crypto/proc.o CC drivers/base/property.o LD net/bpf/built-in.o CC drivers/base/cacheinfo.o CC crypto/aead.o LD kernel/locking/built-in.o CC mm/vmstat.o LD drivers/base/test/built-in.o CC drivers/base/dma-mapping.o CC block/elevator.o CC drivers/base/firmware_class.o CC net/core/datagram.o CC block/blk-core.o CC drivers/base/power/sysfs.o CC drivers/base/module.o CC mm/backing-dev.o CC mm/mm_init.o CC mm/mmu_context.o CC net/core/stream.o CC mm/percpu.o CC kernel/irq/resend.o CC mm/slab_common.o CC mm/compaction.o CC block/blk-tag.o LD kernel/power/built-in.o CC kernel/irq/chip.o CC block/blk-sysfs.o CC mm/vmacache.o CC mm/swap_slots.o CC lib/sort.o CC kernel/time/timekeeping.o CC net/ipv4/route.o CC mm/interval_tree.o LD kernel/printk/built-in.o CC net/netlink/af_netlink.o CC net/netlink/genetlink.o CC lib/parser.o CC mm/list_lru.o CC net/ipv6/addrconf_core.o CC crypto/ablkcipher.o CC lib/debug_locks.o CC kernel/time/ntp.o CC crypto/blkcipher.o CC mm/workingset.o CC mm/debug.o CC kernel/time/clocksource.o CC kernel/irq/dummychip.o CC mm/nommu.o CC block/blk-flush.o LD kernel/bpf/built-in.o CC block/blk-settings.o CC mm/init-mm.o CC mm/bootmem.o CC mm/fadvise.o LD net/ethernet/built-in.o CC lib/random32.o CC lib/bust_spinlocks.o CC drivers/base/power/generic_ops.o CC kernel/time/jiffies.o CC mm/dmapool.o CC net/packet/af_packet.o CC crypto/skcipher.o CC mm/slab.o CC kernel/irq/devres.o CC lib/kasprintf.o CC block/blk-ioc.o CC block/blk-exec.o CC block/blk-map.o CC net/ipv4/inetpeer.o CC block/blk-merge.o CC net/core/scm.o CC net/core/gen_stats.o CC fs/file_table.o CC fs/super.o CC crypto/ahash.o CC kernel/irq/autoprobe.o CC net/core/gen_estimator.o CC kernel/irq/proc.o CC kernel/sched/loadavg.o CC lib/bitmap.o CC crypto/shash.o CC kernel/irq/pm.o CC lib/scatterlist.o CC net/core/net_namespace.o CC block/blk-softirq.o CC lib/gcd.o CC crypto/akcipher.o CC lib/lcm.o CC net/ipv6/exthdrs_core.o CC drivers/base/power/common.o CC crypto/kpp.o CC kernel/time/timer_list.o CC crypto/acompress.o CC block/blk-timeout.o CC crypto/scompress.o CC kernel/time/timeconv.o CC crypto/algboss.o CC lib/list_sort.o CC lib/uuid.o CC block/blk-lib.o CC lib/flex_array.o CC kernel/sched/clock.o CC block/blk-mq.o CC lib/iov_iter.o CC lib/clz_ctz.o CC block/blk-mq-tag.o CC crypto/testmgr.o CC kernel/time/timecounter.o CC net/core/secure_seq.o CC net/core/flow_dissector.o CC fs/char_dev.o CC block/blk-stat.o LD kernel/irq/built-in.o CC lib/bsearch.o CC net/core/sysctl_net_core.o CC lib/find_bit.o CC lib/llist.o CC drivers/base/power/qos.o CC net/core/dev.o CC crypto/crypto_null.o CC block/blk-mq-sysfs.o CC kernel/sched/cputime.o CC kernel/sched/idle_task.o CC kernel/time/posix-timers.o CC kernel/time/alarmtimer.o CC lib/memweight.o CC drivers/base/power/runtime.o CC net/ipv4/protocol.o CC crypto/aes_generic.o CC net/core/ethtool.o CC lib/kfifo.o CC kernel/time/posix-cpu-timers.o CC crypto/rng.o CC lib/percpu-refcount.o CC kernel/time/posix-clock.o CC lib/percpu_ida.o CC lib/rhashtable.o CC lib/reciprocal_div.o CC lib/once.o CC [M] crypto/echainiv.o CC [M] crypto/hmac.o CC [M] crypto/sha256_generic.o CC net/core/dev_addr_lists.o CC block/blk-mq-cpumap.o CC block/blk-mq-sched.o CC [M] crypto/drbg.o CC fs/stat.o CC lib/refcount.o CC net/ipv6/ip6_checksum.o CC kernel/time/itimer.o CC [M] crypto/jitterentropy.o LD net/netlink/built-in.o CC kernel/sched/fair.o CC lib/usercopy.o CC block/ioctl.o CC [M] crypto/jitterentropy-kcapi.o CC net/sched/sch_generic.o CC block/genhd.o LD crypto/crypto.o CC lib/string_helpers.o CC net/core/dst.o CC block/partition-generic.o LD crypto/crypto_algapi.o LD crypto/crypto_blkcipher.o CC kernel/sched/rt.o CC block/ioprio.o LD crypto/crypto_hash.o CC net/core/netevent.o LD crypto/crypto_acompress.o CC lib/hexdump.o LD crypto/cryptomgr.o CC net/core/neighbour.o CC drivers/base/power/wakeirq.o LD mm/built-in.o CC net/ipv4/ip_input.o CC net/ipv4/ip_fragment.o CC net/ipv4/ip_forward.o CC net/ipv4/ip_options.o CC kernel/time/clockevents.o CC block/badblocks.o CC kernel/time/tick-common.o CC fs/exec.o CC lib/kstrtox.o CC lib/iomap_copy.o CC net/ipv4/ip_output.o CC lib/devres.o CC net/core/rtnetlink.o CC block/noop-iosched.o CC block/partitions/check.o CC net/core/utils.o CC lib/bitrev.o CC lib/crc-itu-t.o CC kernel/time/timekeeping_debug.o CC net/core/link_watch.o CC drivers/base/power/main.o CC drivers/base/power/wakeup.o CC net/core/filter.o LD [M] crypto/jitterentropy_rng.o CC fs/pipe.o CC net/core/sock_diag.o CC block/cfq-iosched.o CC fs/namei.o CC block/mq-deadline.o HOSTCC lib/gen_crc32table CC lib/crc7.o CC lib/lz4/lz4_decompress.o CC block/kyber-iosched.o CC lib/lzo/lzo1x_decompress_safe.o CC kernel/sched/deadline.o CC net/ipv6/ip6_icmp.o CC block/blk-mq-debugfs.o CC net/ipv6/output_core.o CC lib/syscall.o CC kernel/sched/stop_task.o CC lib/nlattr.o CC kernel/sched/wait.o LD kernel/time/built-in.o CC lib/zlib_deflate/deflate.o CC lib/zlib_deflate/deftree.o CC net/core/dev_ioctl.o CC lib/zlib_deflate/deflate_syms.o CC block/partitions/msdos.o CC lib/xz/xz_dec_syms.o CC lib/zlib_inflate/inffast.o CC lib/zlib_inflate/inflate.o CC lib/atomic64.o CC lib/checksum.o CC net/core/tso.o CC net/ipv4/ip_sockglue.o CC net/core/sock_reuseport.o LD crypto/built-in.o LD lib/lzo/lzo_decompress.o CC net/ipv4/inet_hashtables.o CC net/core/net-sysfs.o LD lib/lzo/built-in.o CC lib/dynamic_queue_limits.o CC lib/net_utils.o CC lib/xz/xz_dec_stream.o CC net/ipv4/inet_timewait_sock.o CC net/core/net-procfs.o CC net/sched/sch_mq.o CC lib/zlib_inflate/infutil.o CC lib/xz/xz_dec_lzma2.o CC lib/argv_split.o CC lib/sbitmap.o CC kernel/sched/swait.o CC kernel/sched/completion.o CC lib/bug.o CC kernel/sched/idle.o CC fs/fcntl.o CC net/ipv4/inet_connection_sock.o CC lib/chacha20.o CC net/ipv4/tcp.o LD net/packet/built-in.o CC net/ipv4/tcp_input.o CC net/ipv4/tcp_output.o CC lib/cmdline.o CC net/unix/af_unix.o CC lib/ctype.o CC net/ipv4/tcp_timer.o CC lib/zlib_inflate/inftrees.o CC lib/zlib_inflate/inflate_syms.o CC lib/xz/xz_dec_bcj.o CC net/ipv4/tcp_ipv4.o CC fs/ioctl.o CC lib/dec_and_lock.o CC net/ipv6/protocol.o CC block/partitions/efi.o LD lib/zlib_deflate/zlib_deflate.o CC lib/decompress.o CC kernel/sched/debug.o CC lib/decompress_bunzip2.o LD lib/zlib_deflate/built-in.o CC lib/decompress_unlz4.o CC net/ipv6/tcpv6_offload.o CC net/ipv6/ip6_offload.o CC lib/decompress_unlzo.o CC lib/decompress_unlzma.o CC lib/decompress_unxz.o CC fs/readdir.o CC lib/earlycpio.o CC lib/dump_stack.o CC lib/extable.o CC lib/flex_proportions.o CC fs/select.o CC lib/idr.o CC net/ipv6/exthdrs_offload.o LD lib/zlib_inflate/zlib_inflate.o LD lib/zlib_inflate/built-in.o CC lib/int_sqrt.o LD drivers/base/power/built-in.o LD drivers/base/built-in.o CC net/ipv4/tcp_minisocks.o CC net/ipv4/tcp_cong.o CC lib/irq_regs.o CC lib/is_single_threaded.o LD lib/xz/xz_dec.o CC net/sysctl_net.o CC lib/klist.o LD lib/xz/built-in.o CC lib/kobject.o CC lib/kobject_uevent.o CC drivers/block/brd.o CC lib/nmi_backtrace.o LD net/sched/built-in.o LD drivers/bus/built-in.o CC lib/nodemask.o CC lib/radix-tree.o CC lib/plist.o LD drivers/cdrom/built-in.o CC net/ipv4/tcp_metrics.o CC lib/ratelimit.o CC lib/rbtree.o CC net/unix/garbage.o CC net/ipv4/tcp_fastopen.o CC lib/seq_buf.o CC drivers/char/mem.o CC fs/dcache.o CC lib/sha1.o CC lib/show_mem.o CC lib/siphash.o CC lib/string.o CC lib/timerqueue.o CC fs/inode.o CC net/ipv4/tcp_rate.o CC fs/attr.o CC lib/vsprintf.o CC fs/bad_inode.o CC lib/win_minmax.o CC [M] lib/crc-ccitt.o GEN lib/crc32table.h LD drivers/char/ipmi/built-in.o CC lib/crc32.o LD block/partitions/built-in.o LD drivers/clocksource/built-in.o CC net/ipv4/tcp_recovery.o CC net/ipv4/tcp_offload.o LD drivers/clk/bcm/built-in.o CC net/ipv4/datagram.o LD drivers/clk/mvebu/built-in.o CC net/ipv4/raw.o LD drivers/crypto/built-in.o CC net/ipv4/udp.o LD drivers/clk/ti/built-in.o CC drivers/char/random.o LD kernel/sched/built-in.o LD drivers/firewire/built-in.o LD net/ipv6/built-in.o LD kernel/built-in.o CC drivers/char/misc.o LD drivers/clk/built-in.o CC net/ipv4/udplite.o LD drivers/firmware/broadcom/built-in.o LD drivers/firmware/meson/built-in.o CC drivers/gpio/devres.o CC drivers/gpio/gpiolib.o CC drivers/gpio/gpiolib-legacy.o CC drivers/hwmon/hwmon.o LD drivers/firmware/tegra/built-in.o LD drivers/hwtracing/intel_th/built-in.o LD drivers/gpu/vga/built-in.o CC fs/file.o CC drivers/gpio/gpiolib-devprop.o CC fs/filesystems.o LD drivers/firmware/built-in.o CC net/ipv4/udp_offload.o LD drivers/block/built-in.o LD drivers/idle/built-in.o CC fs/namespace.o LD drivers/irqchip/built-in.o LD drivers/macintosh/built-in.o LD drivers/lguest/built-in.o LD drivers/i2c/algos/built-in.o CC net/ipv4/arp.o LD drivers/gpu/drm/bridge/synopsys/built-in.o LD drivers/mfd/built-in.o LD drivers/i2c/busses/built-in.o CC net/unix/sysctl_net_unix.o LD drivers/gpu/drm/bridge/built-in.o LD drivers/i2c/muxes/built-in.o CC net/ipv4/icmp.o LD lib/lz4/built-in.o CC drivers/gpio/gpiolib-sysfs.o CC net/ipv4/devinet.o LD drivers/misc/cb710/built-in.o LD drivers/i2c/built-in.o LD drivers/gpu/drm/hisilicon/built-in.o CC net/ipv4/af_inet.o LD drivers/media/firewire/built-in.o CC net/ipv4/igmp.o LD drivers/media/common/b2c2/built-in.o LD net/core/built-in.o LD drivers/gpu/drm/i2c/built-in.o LD drivers/media/common/saa7146/built-in.o LD drivers/media/mmc/siano/built-in.o CC net/ipv4/fib_frontend.o LD drivers/media/mmc/built-in.o LD drivers/misc/eeprom/built-in.o LD drivers/media/i2c/soc_camera/built-in.o CC net/ipv4/fib_semantics.o CC drivers/net/Space.o CC net/ipv4/fib_trie.o CC drivers/net/loopback.o LD drivers/nfc/built-in.o CC net/ipv4/fib_notifier.o LD drivers/gpu/drm/panel/built-in.o LD drivers/misc/lis3lv02d/built-in.o CC drivers/mmc/core/core.o CC drivers/mtd/mtdcore.o LD block/built-in.o CC drivers/mmc/core/bus.o CC fs/seq_file.o LD drivers/media/common/siano/built-in.o LD drivers/gpu/drm/omapdrm/displays/built-in.o LD drivers/media/i2c/built-in.o LD drivers/gpu/drm/tilcdc/built-in.o CC fs/xattr.o CC net/ipv4/inet_fragment.o LD drivers/net/phy/built-in.o LD drivers/char/agp/built-in.o CC net/ipv4/ping.o CC fs/libfs.o LD drivers/nvme/host/built-in.o LD drivers/misc/mic/bus/built-in.o LD drivers/gpu/drm/omapdrm/dss/built-in.o LD drivers/media/common/v4l2-tpg/built-in.o LD drivers/nvme/target/built-in.o LD drivers/media/platform/blackfin/built-in.o LD drivers/media/platform/omap/built-in.o LD drivers/misc/mic/built-in.o LD drivers/media/common/built-in.o LD drivers/misc/ti-st/built-in.o LD drivers/nvme/built-in.o CC net/ipv4/ip_tunnel_core.o LD drivers/misc/built-in.o LD drivers/gpu/drm/omapdrm/built-in.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/platform/built-in.o LD drivers/net/ethernet/alacritech/built-in.o LD drivers/net/ethernet/8390/built-in.o LD drivers/pci/dwc/built-in.o CC fs/fs-writeback.o CC net/ipv4/gre_offload.o LD drivers/media/pci/mantis/built-in.o LD drivers/media/pci/netup_unidvb/built-in.o LD drivers/media/spi/built-in.o LD drivers/media/tuners/built-in.o LD drivers/net/ethernet/amazon/built-in.o LD drivers/net/ethernet/aquantia/built-in.o LD drivers/gpu/drm/built-in.o LD drivers/media/usb/b2c2/built-in.o LD drivers/media/pci/ngene/built-in.o LD net/unix/unix.o LD drivers/media/rc/keymaps/built-in.o LD drivers/power/built-in.o LD net/unix/built-in.o LD drivers/platform/built-in.o LD drivers/ptp/built-in.o LD drivers/media/usb/dvb-usb/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/pci/pt3/built-in.o LD drivers/media/usb/dvb-usb-v2/built-in.o LD drivers/media/pci/pt1/built-in.o LD drivers/net/ethernet/arc/built-in.o LD drivers/media/rc/built-in.o LD drivers/net/ethernet/broadcom/built-in.o LD drivers/pwm/built-in.o CC net/ipv4/sysctl_net_ipv4.o LD drivers/media/pci/smipcie/built-in.o LD drivers/media/pci/saa7146/built-in.o LD drivers/hwmon/built-in.o LD drivers/media/usb/s2255/built-in.o LD drivers/gpu/built-in.o LD drivers/net/ethernet/cadence/built-in.o LD drivers/media/pci/ttpci/built-in.o LD drivers/media/usb/siano/built-in.o CC drivers/spi/spi.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/net/ethernet/ezchip/built-in.o LD drivers/soc/bcm/built-in.o CC fs/pnode.o CC drivers/usb/common/common.o LD drivers/net/ethernet/i825xx/built-in.o LD drivers/media/pci/built-in.o LD drivers/net/ethernet/intel/built-in.o LD drivers/video/backlight/built-in.o LD drivers/media/usb/ttusb-dec/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o LD drivers/net/ethernet/marvell/built-in.o CC fs/splice.o CC drivers/usb/gadget/usbstring.o CC drivers/usb/gadget/config.o LD drivers/soc/fsl/built-in.o LD drivers/net/ethernet/micrel/built-in.o CC drivers/mmc/core/host.o LD drivers/media/usb/zr364xx/built-in.o LD drivers/net/ethernet/microchip/built-in.o LD drivers/media/usb/built-in.o LD drivers/net/ethernet/natsemi/built-in.o LD drivers/soc/built-in.o LD drivers/video/fbdev/core/built-in.o CC net/ipv4/proc.o LD drivers/net/ethernet/netronome/built-in.o CC net/ipv4/tcp_cubic.o CC drivers/tty/tty_io.o LD drivers/usb/phy/built-in.o LD drivers/net/ethernet/rocker/built-in.o LD drivers/net/ethernet/renesas/built-in.o LD drivers/net/ethernet/samsung/built-in.o LD drivers/video/fbdev/omap2/omapfb/displays/built-in.o CC drivers/usb/gadget/epautoconf.o LD drivers/net/ethernet/qualcomm/emac/built-in.o LD drivers/char/built-in.o LD drivers/media/built-in.o CC drivers/mmc/core/mmc.o CC fs/sync.o LD drivers/net/ethernet/stmicro/built-in.o LD drivers/net/ethernet/qualcomm/built-in.o LD drivers/video/fbdev/omap2/omapfb/dss/built-in.o LD drivers/net/ethernet/seeq/built-in.o LD drivers/net/ethernet/synopsys/built-in.o LD drivers/net/ethernet/smsc/built-in.o CC drivers/mmc/core/mmc_ops.o CC drivers/mmc/core/sd.o LD drivers/net/ethernet/wiznet/built-in.o CC fs/utimes.o CC drivers/mmc/core/sd_ops.o CC drivers/mmc/core/sdio.o CC fs/stack.o LD drivers/net/ethernet/via/built-in.o LD drivers/video/fbdev/omap2/omapfb/built-in.o CC drivers/mtd/mtdsuper.o CC fs/fs_struct.o CC fs/statfs.o LD drivers/net/ethernet/built-in.o CC drivers/mmc/core/sdio_ops.o LD drivers/video/fbdev/omap2/built-in.o LD drivers/video/fbdev/built-in.o CC drivers/spi/spi-bfin5xx.o LD drivers/mmc/host/built-in.o CC drivers/usb/gadget/composite.o CC fs/fs_pin.o LD drivers/video/built-in.o LD drivers/usb/common/usb-common.o LD drivers/usb/common/built-in.o CC [M] drivers/mmc/host/mmc_spi.o CC fs/nsfs.o CC drivers/mtd/mtdconcat.o CC drivers/usb/gadget/functions.o CC fs/buffer.o CC drivers/usb/gadget/configfs.o CC fs/block_dev.o LD drivers/net/built-in.o CC drivers/usb/gadget/u_f.o CC fs/direct-io.o CC fs/mpage.o CC drivers/mmc/core/sdio_bus.o CC fs/proc_namespace.o LD drivers/gpio/built-in.o CC drivers/usb/gadget/legacy/ether.o CC fs/configfs/inode.o AR lib/lib.a EXPORTS lib/lib-ksyms.o CC drivers/usb/gadget/function/u_ether.o CC fs/configfs/file.o CC fs/debugfs/inode.o LD fs/exofs/built-in.o LD lib/built-in.o CC fs/devpts/inode.o CC drivers/mmc/core/sdio_cis.o CC drivers/mmc/core/sdio_io.o CC drivers/mmc/core/sdio_irq.o CC drivers/usb/gadget/udc/core.o CC fs/exportfs/expfs.o CC drivers/mtd/mtdpart.o CC drivers/mmc/core/debugfs.o CC drivers/mmc/core/block.o CC drivers/mmc/core/slot-gpio.o CC fs/debugfs/file.o CC drivers/mmc/core/queue.o CC fs/ext2/balloc.o CC fs/kernfs/mount.o CC fs/ext2/dir.o CC fs/kernfs/inode.o CC fs/ext2/file.o CC fs/ext2/ialloc.o CC fs/ext2/inode.o CC fs/nls/nls_base.o CC fs/fat/cache.o LD drivers/usb/gadget/legacy/g_ether.o LD drivers/usb/gadget/legacy/built-in.o CC fs/fat/fatent.o CC fs/fat/dir.o CC fs/fat/file.o CC fs/nls/nls_cp437.o CC fs/notify/fsnotify.o CC fs/nls/nls_iso8859-1.o LD fs/exportfs/exportfs.o LD fs/exportfs/built-in.o CC fs/jffs2/compr.o LD fs/quota/built-in.o CC fs/configfs/dir.o CC fs/ext2/ioctl.o CC fs/configfs/symlink.o CC fs/configfs/mount.o CC drivers/tty/n_tty.o CC fs/notify/notification.o CC fs/proc/nommu.o CC fs/configfs/item.o CC fs/proc/task_nommu.o CC fs/ramfs/inode.o CC fs/ramfs/file-nommu.o LD drivers/mmc/core/mmc_core.o CC fs/ext2/namei.o CC fs/ext2/super.o CC fs/sysfs/file.o CC fs/ext2/symlink.o CC drivers/tty/tty_ioctl.o CC fs/kernfs/dir.o CC fs/eventpoll.o CC fs/kernfs/file.o LD net/ipv4/built-in.o LD fs/nls/built-in.o CC drivers/tty/tty_ldisc.o CC fs/anon_inodes.o CC drivers/tty/tty_buffer.o LD net/built-in.o CC fs/kernfs/symlink.o CC drivers/mtd/mtdchar.o LD fs/devpts/devpts.o LD fs/devpts/built-in.o CC fs/signalfd.o CC drivers/usb/gadget/udc/trace.o CC fs/fat/inode.o CC fs/ext2/xattr_trusted.o CC fs/ext2/xattr.o CC fs/ext2/xattr_user.o CC drivers/usb/gadget/function/f_ecm.o CC fs/jffs2/dir.o CC fs/fat/misc.o CC drivers/usb/gadget/function/f_rndis.o CC drivers/usb/gadget/function/f_subset.o CC fs/jffs2/file.o LD fs/debugfs/debugfs.o CC drivers/usb/gadget/function/rndis.o LD drivers/spi/built-in.o LD fs/debugfs/built-in.o CC fs/fat/nfs.o CC fs/fat/namei_vfat.o CC fs/timerfd.o CC fs/notify/mark.o CC fs/notify/group.o CC fs/fat/namei_msdos.o CC fs/proc/inode.o CC fs/proc/root.o LD drivers/usb/gadget/udc/udc-core.o LD drivers/usb/gadget/libcomposite.o LD drivers/usb/gadget/udc/built-in.o CC fs/eventfd.o CC fs/aio.o CC fs/notify/fdinfo.o CC fs/locks.o CC fs/proc/base.o CC fs/binfmt_script.o CC fs/jffs2/ioctl.o LD fs/notify/dnotify/built-in.o CC fs/jffs2/nodelist.o CC fs/jffs2/malloc.o CC fs/sysfs/dir.o CC fs/sysfs/symlink.o CC fs/sysfs/mount.o CC drivers/tty/tty_port.o LD fs/notify/fanotify/built-in.o LD fs/ramfs/ramfs.o LD fs/ramfs/built-in.o CC drivers/tty/tty_mutex.o CC fs/binfmt_elf_fdpic.o CC fs/notify/inotify/inotify_fsnotify.o CC fs/binfmt_flat.o CC drivers/tty/tty_ldsem.o CC drivers/mtd/cmdlinepart.o CC drivers/tty/tty_baudrate.o LD fs/configfs/configfs.o CC drivers/mtd/mtd_blkdevs.o LD fs/configfs/built-in.o CC fs/mbcache.o CC fs/proc/generic.o CC fs/sysfs/group.o CC fs/proc/array.o CC fs/coredump.o CC drivers/tty/tty_jobctrl.o CC fs/proc/fd.o CC fs/jffs2/read.o CC fs/jffs2/nodemgmt.o CC fs/drop_caches.o CC drivers/mtd/mtdblock.o CC fs/jffs2/readinode.o CC fs/jffs2/write.o LD drivers/usb/gadget/function/usb_f_ecm.o CC fs/fhandle.o CC drivers/tty/pty.o LD drivers/mmc/core/mmc_block.o LD drivers/mmc/core/built-in.o LD fs/kernfs/built-in.o CC fs/proc/proc_tty.o LD drivers/mmc/built-in.o LD drivers/tty/ipwireless/built-in.o CC fs/notify/inotify/inotify_user.o CC fs/jffs2/scan.o CC drivers/mtd/chips/chipreg.o CC drivers/mtd/chips/cfi_probe.o CC fs/proc/cmdline.o CC drivers/tty/serial/serial_core.o LD drivers/tty/vt/built-in.o CC fs/jffs2/gc.o LD fs/fat/msdos.o LD drivers/mtd/devices/built-in.o LD drivers/usb/gadget/function/usb_f_ecm_subset.o CC drivers/mtd/chips/cfi_util.o CC fs/jffs2/symlink.o CC drivers/tty/serial/bfin_uart.o CC fs/jffs2/build.o CC fs/jffs2/erase.o LD drivers/mtd/lpddr/built-in.o CC drivers/mtd/chips/cfi_cmdset_0001.o CC drivers/mtd/chips/gen_probe.o LD fs/ext2/ext2.o LD drivers/mtd/nand/built-in.o LD drivers/usb/gadget/function/usb_f_rndis.o LD fs/ext2/built-in.o CC drivers/mtd/maps/map_funcs.o LD drivers/usb/gadget/function/built-in.o CC fs/jffs2/background.o LD drivers/mtd/onenand/built-in.o LD drivers/usb/gadget/built-in.o LD drivers/mtd/mtd.o LD drivers/mtd/tests/built-in.o LD fs/fat/vfat.o LD fs/sysfs/built-in.o CC fs/jffs2/fs.o CC drivers/mtd/maps/gpio-addr-flash.o CC fs/jffs2/writev.o CC [M] drivers/mtd/chips/map_rom.o CC drivers/mtd/chips/map_ram.o CC fs/proc/consoles.o CC fs/jffs2/super.o CC fs/jffs2/wbuf.o LD drivers/usb/built-in.o CC fs/jffs2/debug.o CC fs/proc/cpuinfo.o CC fs/jffs2/compr_rtime.o CC fs/proc/devices.o CC fs/proc/interrupts.o CC fs/jffs2/compr_zlib.o CC fs/proc/loadavg.o CC fs/proc/meminfo.o CC fs/proc/stat.o CC fs/proc/uptime.o CC fs/proc/version.o CC fs/proc/softirqs.o CC fs/proc/namespaces.o CC fs/proc/thread_self.o CC fs/proc/self.o CC fs/proc/proc_sysctl.o CC fs/proc/proc_net.o LD fs/fat/fat.o LD fs/fat/built-in.o CC fs/proc/kmsg.o LD fs/notify/inotify/built-in.o LD fs/notify/built-in.o LD drivers/mtd/maps/built-in.o LD fs/jffs2/jffs2.o LD fs/jffs2/built-in.o LD drivers/mtd/chips/built-in.o LD drivers/mtd/built-in.o LD fs/proc/proc.o LD fs/proc/built-in.o LD fs/built-in.o LD drivers/tty/serial/built-in.o LD drivers/tty/built-in.o LD drivers/built-in.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD vmlinux.o MODPOST vmlinux.o KSYM .tmp_kallsyms1.o KSYM .tmp_kallsyms2.o LD vmlinux SYSMAP System.map OBJCOPY arch/blackfin/boot/vmlinux.bin Building modules, stage 2. MODPOST 8 modules LZMA arch/blackfin/boot/vmlinux.bin.lzma CC crypto/drbg.mod.o CC crypto/echainiv.mod.o CC crypto/hmac.mod.o CC crypto/jitterentropy_rng.mod.o CC crypto/sha256_generic.mod.o CC drivers/mmc/host/mmc_spi.mod.o CC drivers/mtd/chips/map_rom.mod.o CC lib/crc-ccitt.mod.o LD [M] crypto/echainiv.ko LD [M] crypto/jitterentropy_rng.ko LD [M] drivers/mtd/chips/map_rom.ko LD [M] crypto/sha256_generic.ko LD [M] lib/crc-ccitt.ko LD [M] drivers/mmc/host/mmc_spi.ko LD [M] crypto/drbg.ko LD [M] crypto/hmac.ko UIMAGE arch/blackfin/boot/uImage.lzma Image Name: bf537-0.2-4.12.0-rc3-gf511c0b Created: Wed May 31 07:05:17 2017 Image Type: Blackfin Linux Kernel Image (lzma compressed) Data Size: 1347221 Bytes = 1315.65 kB = 1.28 MB Load Address: 00001000 Entry Point: 002bad08 make[1]: Leaving directory '/home/kisskb/slave/build/linus_CM-BF537U_defconfig_bfin' Completed OK # rm -rf /home/kisskb/slave/build/linus_CM-BF537U_defconfig_bfin # Build took: 0:00:21.778886