# git rev-parse -q --verify 5cb0512c02ecd7e6214e912e4c150f4219ac78e0^{commit} 5cb0512c02ecd7e6214e912e4c150f4219ac78e0 already have revision, skipping fetch # git checkout -q -f -B kisskb 5cb0512c02ecd7e6214e912e4c150f4219ac78e0 # git clean -qxdf # git log -1 commit 5cb0512c02ecd7e6214e912e4c150f4219ac78e0 Author: Linus Torvalds Date: Thu Nov 2 14:10:37 2017 -0700 Kbuild: don't pass "-C" to preprocessor when processing linker scripts For some odd historical reason, we preprocessed the linker scripts with "-C", which keeps comments around. That makes no sense, since the comments are not meaningful for the build anyway. And it actually breaks things, since linker scripts can't have C++ style "//" comments in them, so keeping comments after preprocessing now limits us in odd and surprising ways in our header files for no good reason. The -C option goes back to pre-git and pre-bitkeeper times, but seems to have been historically used (along with "-traditional") for some odd-ball architectures (ia64, MIPS and SH). It probably didn't matter back then either, but might possibly have been used to minimize the difference between the original file and the pre-processed result. The reason for this may be lost in time, but let's not perpetuate it only because we can't remember why we did this crazy thing. This was triggered by the recent addition of SPDX lines to the source tree, where people apparently were confused about why header files couldn't use the C++ comment format. Cc: Thomas Gleixner Cc: Greg KH Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version # < git log --format=%s --max-count=1 5cb0512c02ecd7e6214e912e4c150f4219ac78e0 # < make -j 10 ARCH=xtensa O=/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- allnoconfig # make -j 10 ARCH=xtensa O=/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- make[1]: Entering directory '/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release GEN ./Makefile UPD include/config/kernel.release WRAP arch/xtensa/include/generated/uapi/asm/bitsperlong.h WRAP arch/xtensa/include/generated/uapi/asm/fcntl.h WRAP arch/xtensa/include/generated/uapi/asm/errno.h WRAP arch/xtensa/include/generated/uapi/asm/ioctl.h WRAP arch/xtensa/include/generated/uapi/asm/kvm_para.h WRAP arch/xtensa/include/generated/uapi/asm/resource.h WRAP arch/xtensa/include/generated/uapi/asm/siginfo.h WRAP arch/xtensa/include/generated/uapi/asm/termios.h WRAP arch/xtensa/include/generated/uapi/asm/statfs.h CHK include/generated/uapi/linux/version.h UPD include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h Using /home/kisskb/slave/src as source for kernel WRAP arch/xtensa/include/generated/asm/bug.h WRAP arch/xtensa/include/generated/asm/clkdev.h WRAP arch/xtensa/include/generated/asm/device.h WRAP arch/xtensa/include/generated/asm/div64.h WRAP arch/xtensa/include/generated/asm/dma-contiguous.h WRAP arch/xtensa/include/generated/asm/emergency-restart.h WRAP arch/xtensa/include/generated/asm/exec.h WRAP arch/xtensa/include/generated/asm/extable.h WRAP arch/xtensa/include/generated/asm/fb.h WRAP arch/xtensa/include/generated/asm/hardirq.h WRAP arch/xtensa/include/generated/asm/irq_regs.h WRAP arch/xtensa/include/generated/asm/irq_work.h WRAP arch/xtensa/include/generated/asm/kdebug.h WRAP arch/xtensa/include/generated/asm/kmap_types.h WRAP arch/xtensa/include/generated/asm/kprobes.h WRAP arch/xtensa/include/generated/asm/local.h WRAP arch/xtensa/include/generated/asm/linkage.h WRAP arch/xtensa/include/generated/asm/local64.h WRAP arch/xtensa/include/generated/asm/mcs_spinlock.h WRAP arch/xtensa/include/generated/asm/mm-arch-hooks.h WRAP arch/xtensa/include/generated/asm/param.h WRAP arch/xtensa/include/generated/asm/percpu.h WRAP arch/xtensa/include/generated/asm/preempt.h WRAP arch/xtensa/include/generated/asm/rwsem.h WRAP arch/xtensa/include/generated/asm/sections.h WRAP arch/xtensa/include/generated/asm/topology.h WRAP arch/xtensa/include/generated/asm/trace_clock.h WRAP arch/xtensa/include/generated/asm/word-at-a-time.h WRAP arch/xtensa/include/generated/asm/xor.h HOSTCC scripts/sortextable CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s CHK scripts/mod/devicetable-offsets.h UPD scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost CHK include/generated/timeconst.h CC kernel/bounds.s UPD include/generated/timeconst.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/xtensa/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o AR usr/built-in.o CC init/noinitramfs.o CC init/init_task.o UPD include/generated/compile.h AS arch/xtensa/kernel/align.o AS arch/xtensa/kernel/coprocessor.o AS arch/xtensa/kernel/entry.o CC arch/xtensa/mm/init.o CC arch/xtensa/platforms/iss/setup.o CC arch/xtensa/kernel/irq.o AS arch/xtensa/mm/misc.o CC arch/xtensa/kernel/pci-dma.o CC kernel/fork.o AR certs/built-in.o CC mm/filemap.o CC mm/mempool.o CC kernel/exec_domain.o AR arch/xtensa/platforms/iss/built-in.o CC mm/oom_kill.o CC fs/open.o CC arch/xtensa/mm/cache.o CC arch/xtensa/kernel/platform.o CC fs/read_write.o CC init/version.o CC fs/file_table.o CC kernel/panic.o CC arch/xtensa/mm/fault.o CC arch/xtensa/kernel/process.o AR init/mounts.o AR init/built-in.o CC kernel/cpu.o AR ipc/built-in.o CC arch/xtensa/kernel/ptrace.o CC kernel/exit.o CC arch/xtensa/kernel/setup.o CC arch/xtensa/mm/ioremap.o CC mm/maccess.o CC arch/xtensa/kernel/signal.o CC arch/xtensa/kernel/stacktrace.o CC arch/xtensa/mm/mmu.o CC arch/xtensa/kernel/syscall.o CC arch/xtensa/mm/tlb.o CC mm/page_alloc.o CC fs/super.o CC arch/xtensa/kernel/time.o CC security/commoncap.o CC security/min_addr.o CC fs/char_dev.o CC arch/xtensa/kernel/traps.o AR arch/xtensa/mm/built-in.o CC kernel/softirq.o CC fs/stat.o AR crypto/built-in.o CC kernel/resource.o AS arch/xtensa/kernel/vectors.o CC fs/exec.o CC fs/pipe.o AS arch/xtensa/kernel/head.o LDS arch/xtensa/kernel/vmlinux.lds AR arch/xtensa/kernel/built-in.o AR block/built-in.o CC kernel/sysctl.o CC kernel/sysctl_binary.o AR drivers/amba/built-in.o AR drivers/auxdisplay/built-in.o AR security/built-in.o CC fs/namei.o CC drivers/base/component.o AR drivers/block/built-in.o CC drivers/base/core.o CC kernel/capability.o AR sound/built-in.o AR drivers/bus/built-in.o CC fs/fcntl.o AR firmware/built-in.o CC drivers/base/bus.o CC fs/ioctl.o CC mm/page-writeback.o CC drivers/base/dd.o CC kernel/ptrace.o CC drivers/base/syscore.o CC drivers/base/driver.o CC drivers/base/class.o CC kernel/user.o AR drivers/cdrom/built-in.o CC drivers/base/platform.o AR net/built-in.o CC drivers/base/cpu.o CC lib/lockref.o CC lib/bcd.o AS arch/xtensa/lib/checksum.o AS arch/xtensa/lib/memcopy.o CC lib/div64.o CC lib/sort.o AS arch/xtensa/lib/memset.o AS arch/xtensa/lib/strncpy_user.o AS arch/xtensa/lib/strnlen_user.o CC lib/parser.o CC drivers/base/firmware.o CC mm/readahead.o AS arch/xtensa/lib/usercopy.o CC kernel/signal.o AR arch/xtensa/lib/lib.a EXPORTS arch/xtensa/lib/lib-ksyms.o AR arch/xtensa/lib/built-in.o CC kernel/sys.o AR virt/lib/built-in.o AR virt/built-in.o CC drivers/base/init.o CC drivers/base/map.o CC lib/debug_locks.o CC drivers/char/mem.o CC lib/random32.o CC drivers/char/random.o CC drivers/char/misc.o CC drivers/base/devres.o CC lib/bust_spinlocks.o AR drivers/char/agp/built-in.o AR drivers/char/ipmi/built-in.o CC mm/swap.o CC mm/truncate.o CC fs/readdir.o CC drivers/base/attribute_container.o CC drivers/base/transport_class.o CC lib/kasprintf.o CC kernel/umh.o CC drivers/base/topology.o CC lib/bitmap.o CC drivers/clk/clk-devres.o CC lib/scatterlist.o CC fs/select.o AR drivers/char/built-in.o AR drivers/clocksource/built-in.o CC lib/gcd.o CC lib/lcm.o CC fs/dcache.o CC fs/inode.o CC drivers/clk/clk-bulk.o CC drivers/base/container.o CC mm/vmscan.o CC mm/shmem.o CC kernel/workqueue.o CC mm/util.o CC drivers/clk/clkdev.o CC drivers/base/property.o CC lib/list_sort.o CC lib/uuid.o CC lib/flex_array.o CC drivers/base/cacheinfo.o CC drivers/clk/clk.o CC drivers/clk/clk-divider.o CC lib/iov_iter.o CC drivers/clk/clk-fixed-factor.o CC drivers/base/power/clock_ops.o CC fs/attr.o CC fs/bad_inode.o CC fs/file.o AR drivers/base/power/built-in.o AR drivers/base/test/built-in.o CC drivers/base/dma-mapping.o CC lib/clz_ctz.o CC fs/filesystems.o CC lib/bsearch.o AR drivers/firewire/built-in.o CC fs/namespace.o AR drivers/firmware/broadcom/built-in.o AR drivers/firmware/meson/built-in.o AR drivers/firmware/tegra/built-in.o CC mm/mmzone.o AR drivers/firmware/built-in.o CC mm/vmstat.o CC lib/find_bit.o CC kernel/pid.o CC drivers/clk/clk-fixed-rate.o CC mm/backing-dev.o CC lib/llist.o AR drivers/base/built-in.o CC mm/mm_init.o CC mm/mmu_context.o CC drivers/clk/clk-gate.o CC drivers/clk/clk-multiplier.o CC drivers/clk/clk-mux.o AR drivers/gpu/drm/bridge/synopsys/built-in.o AR drivers/gpu/drm/bridge/built-in.o AR drivers/gpu/drm/hisilicon/built-in.o AR drivers/gpu/vga/built-in.o AR drivers/gpu/drm/i2c/built-in.o CC drivers/clk/clk-composite.o AR drivers/gpu/drm/omapdrm/displays/built-in.o AR drivers/gpu/drm/omapdrm/dss/built-in.o AR drivers/gpu/drm/omapdrm/built-in.o AR drivers/gpu/drm/panel/built-in.o AR drivers/hwtracing/intel_th/built-in.o CC lib/memweight.o AR drivers/gpu/drm/tilcdc/built-in.o CC kernel/task_work.o CC drivers/clk/clk-fractional-divider.o AR drivers/gpu/drm/built-in.o AR drivers/gpu/built-in.o CC lib/kfifo.o CC mm/percpu.o CC lib/percpu-refcount.o CC fs/seq_file.o CC mm/slab_common.o AR drivers/i2c/algos/built-in.o AR drivers/i2c/busses/built-in.o CC fs/xattr.o AR drivers/i2c/muxes/built-in.o AR drivers/i2c/built-in.o CC fs/libfs.o CC fs/fs-writeback.o CC kernel/extable.o CC drivers/clk/clk-gpio.o CC lib/percpu_ida.o AR drivers/clk/bcm/built-in.o AR drivers/clk/imgtec/built-in.o AR drivers/clk/mvebu/built-in.o AR drivers/clk/renesas/built-in.o AR drivers/clk/ti/built-in.o AR drivers/clk/built-in.o AR drivers/idle/built-in.o CC drivers/irqchip/irq-xtensa-pic.o CC mm/compaction.o CC lib/rhashtable.o CC mm/vmacache.o CC kernel/params.o CC mm/swap_slots.o CC mm/interval_tree.o CC lib/reciprocal_div.o CC lib/once.o AR drivers/irqchip/built-in.o CC fs/pnode.o AR drivers/macintosh/built-in.o AR drivers/media/common/b2c2/built-in.o AR drivers/media/firewire/built-in.o CC kernel/kthread.o AR drivers/media/common/saa7146/built-in.o AR drivers/media/common/siano/built-in.o AR drivers/media/common/v4l2-tpg/built-in.o AR drivers/media/common/built-in.o CC mm/list_lru.o CC lib/refcount.o AR drivers/media/i2c/soc_camera/built-in.o AR drivers/media/i2c/built-in.o AR drivers/media/mmc/siano/built-in.o AR drivers/media/mmc/built-in.o CC fs/splice.o CC kernel/sys_ni.o AR drivers/media/pci/b2c2/built-in.o AR drivers/mfd/built-in.o CC kernel/nsproxy.o AR drivers/media/pci/ddbridge/built-in.o AR drivers/media/pci/dm1105/built-in.o CC kernel/notifier.o CC fs/sync.o AR drivers/media/pci/mantis/built-in.o AR drivers/media/pci/netup_unidvb/built-in.o AR drivers/media/pci/ngene/built-in.o AR drivers/media/pci/pluto2/built-in.o AR drivers/media/pci/pt1/built-in.o AR drivers/media/pci/pt3/built-in.o AR drivers/media/pci/saa7146/built-in.o AR drivers/media/pci/smipcie/built-in.o AR drivers/media/pci/ttpci/built-in.o AR drivers/media/pci/built-in.o AR drivers/media/platform/blackfin/built-in.o AR drivers/media/platform/davinci/built-in.o AR drivers/media/platform/meson/built-in.o AR drivers/media/platform/omap/built-in.o AR drivers/media/platform/stm32/built-in.o AR drivers/media/platform/built-in.o CC kernel/ksysfs.o AR drivers/media/rc/keymaps/built-in.o AR drivers/media/rc/built-in.o AR drivers/media/spi/built-in.o AR drivers/media/tuners/built-in.o CC lib/usercopy.o AR drivers/media/usb/b2c2/built-in.o AR drivers/media/usb/dvb-usb/built-in.o AR drivers/media/usb/dvb-usb-v2/built-in.o AR drivers/media/usb/s2255/built-in.o CC lib/errseq.o CC mm/workingset.o AR drivers/media/usb/siano/built-in.o AR drivers/media/usb/stkwebcam/built-in.o AR drivers/media/usb/ttusb-budget/built-in.o AR drivers/media/usb/ttusb-dec/built-in.o AR drivers/media/usb/zr364xx/built-in.o AR drivers/media/usb/built-in.o AR drivers/media/built-in.o CC mm/debug.o AR drivers/misc/cb710/built-in.o AR drivers/misc/eeprom/built-in.o AR drivers/misc/lis3lv02d/built-in.o CC lib/string_helpers.o CC lib/hexdump.o AR drivers/misc/mic/bus/built-in.o AR drivers/misc/mic/built-in.o AR drivers/misc/ti-st/built-in.o AR drivers/misc/built-in.o CC mm/gup.o AR drivers/mmc/built-in.o AR drivers/net/phy/built-in.o CC kernel/cred.o AR drivers/net/built-in.o AR drivers/nfc/built-in.o AR drivers/pci/dwc/built-in.o AR drivers/nvme/host/built-in.o CC kernel/reboot.o AR drivers/nvme/target/built-in.o AR drivers/nvme/built-in.o AR drivers/platform/built-in.o AR drivers/power/built-in.o CC lib/kstrtox.o AR drivers/ptp/built-in.o CC fs/utimes.o AR drivers/pwm/built-in.o AR drivers/soc/bcm/built-in.o AR drivers/soc/fsl/built-in.o AR drivers/soc/renesas/built-in.o AR drivers/soc/built-in.o AR drivers/tty/ipwireless/built-in.o AR drivers/tty/serial/built-in.o AR drivers/tty/vt/built-in.o AR drivers/tty/built-in.o AR drivers/video/backlight/built-in.o AR drivers/video/fbdev/core/built-in.o CC kernel/async.o AR drivers/video/fbdev/omap2/omapfb/displays/built-in.o AR drivers/video/fbdev/omap2/omapfb/dss/built-in.o AR drivers/video/fbdev/omap2/omapfb/built-in.o AR drivers/video/fbdev/omap2/built-in.o AR drivers/video/fbdev/built-in.o CC kernel/range.o AR drivers/video/built-in.o AR drivers/built-in.o CC lib/pci_iomap.o CC mm/highmem.o CC kernel/smpboot.o CC lib/iomap_copy.o CC mm/memory.o CC lib/devres.o CC lib/hweight.o CC lib/rational.o CC fs/stack.o CC kernel/ucount.o CC fs/fs_struct.o CC mm/mincore.o CC lib/atomic64.o CC kernel/irq/irqdesc.o AR kernel/livepatch/built-in.o CC mm/mlock.o CC kernel/irq/handle.o CC fs/statfs.o CC kernel/locking/mutex.o CC fs/fs_pin.o CC kernel/locking/semaphore.o CC lib/argv_split.o CC kernel/locking/rwsem.o CC lib/chacha20.o CC fs/nsfs.o CC kernel/irq/manage.o CC kernel/irq/spurious.o CC kernel/irq/resend.o CC kernel/power/qos.o CC kernel/locking/percpu-rwsem.o CC kernel/locking/rwsem-xadd.o CC lib/cmdline.o CC fs/no-block.o AR fs/devpts/built-in.o CC kernel/printk/printk.o AR fs/exofs/built-in.o CC kernel/rcu/update.o CC lib/ctype.o CC kernel/rcu/sync.o CC lib/dec_and_lock.o CC kernel/sched/core.o CC lib/decompress.o AR kernel/locking/built-in.o CC kernel/rcu/srcutiny.o AR fs/notify/dnotify/built-in.o CC lib/dump_stack.o AR fs/notify/fanotify/built-in.o AR fs/notify/inotify/built-in.o AR fs/notify/built-in.o AR fs/quota/built-in.o CC fs/ramfs/inode.o CC fs/ramfs/file-mmu.o CC kernel/irq/chip.o AR kernel/power/built-in.o CC kernel/irq/dummychip.o CC lib/earlycpio.o CC kernel/time/time.o CC kernel/rcu/tiny.o CC mm/mmap.o CC lib/extable.o CC kernel/up.o CC kernel/memremap.o AR kernel/printk/built-in.o AR fs/ramfs/ramfs.o CC kernel/irq/devres.o AR fs/ramfs/built-in.o AR fs/built-in.o CC lib/flex_proportions.o CC mm/mprotect.o AR kernel/rcu/built-in.o CC mm/mremap.o CC kernel/time/timer.o CC kernel/time/hrtimer.o CC lib/idr.o CC kernel/irq/irqdomain.o CC lib/int_sqrt.o CC kernel/time/timekeeping.o CC lib/ioremap.o CC kernel/sched/loadavg.o CC lib/irq_regs.o CC lib/is_single_threaded.o CC mm/msync.o CC kernel/time/ntp.o CC mm/page_vma_mapped.o CC mm/pagewalk.o CC lib/klist.o AR kernel/irq/built-in.o CC kernel/sched/clock.o CC mm/pgtable-generic.o CC kernel/sched/cputime.o CC mm/rmap.o CC kernel/sched/idle_task.o CC mm/vmalloc.o CC lib/kobject.o CC lib/kobject_uevent.o CC lib/nmi_backtrace.o CC kernel/time/clocksource.o CC kernel/time/jiffies.o CC kernel/sched/fair.o CC lib/nodemask.o CC kernel/time/timer_list.o CC lib/plist.o CC lib/radix-tree.o CC mm/init-mm.o CC lib/ratelimit.o CC mm/nobootmem.o CC lib/rbtree.o CC mm/memblock.o CC kernel/time/timeconv.o CC kernel/sched/rt.o CC kernel/sched/deadline.o CC kernel/sched/wait.o CC kernel/time/timecounter.o CC mm/dmapool.o CC kernel/time/alarmtimer.o CC kernel/time/posix-stubs.o CC lib/seq_buf.o CC mm/slub.o CC kernel/sched/wait_bit.o CC kernel/time/clockevents.o CC kernel/time/tick-common.o CC lib/sha1.o CC kernel/time/sched_clock.o CC kernel/sched/swait.o CC kernel/sched/completion.o CC kernel/sched/idle.o CC lib/show_mem.o CC lib/siphash.o CC lib/string.o CC lib/timerqueue.o CC lib/vsprintf.o CC lib/win_minmax.o AR kernel/time/built-in.o AR kernel/sched/built-in.o AR kernel/built-in.o AR mm/built-in.o AR lib/lib.a EXPORTS lib/lib-ksyms.o AR lib/built-in.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o AR init/built-in.o AR built-in.o LD vmlinux.o MODPOST vmlinux.o LD vmlinux SORTEX vmlinux SYSMAP System.map OBJCOPY vmlinux.bin COPY arch/xtensa/boot/lib/inffast.c COPY arch/xtensa/boot/lib/inftrees.c COPY arch/xtensa/boot/lib/inflate.c CC arch/xtensa/boot/lib/zmem.o CC arch/xtensa/boot/lib/inffast.o CC arch/xtensa/boot/lib/inflate.o CC arch/xtensa/boot/lib/inftrees.o AR arch/xtensa/boot/lib/lib.a EXPORTS arch/xtensa/boot/lib/lib-ksyms.o AR arch/xtensa/boot/lib/built-in.o AS arch/xtensa/boot/boot-elf/bootstrap.o LDS arch/xtensa/boot/boot-elf/boot.lds Kernel: arch/xtensa/boot/boot-elf/../Image.elf is ready make[1]: Leaving directory '/home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa' Completed OK # rm -rf /home/kisskb/slave/build/linus_xtensa-allnoconfig_xtensa # Build took: 0:00:22.712132