search

riscvarchive / riscv-linux

RISC-V Linux Port
607 stars 205 forks source link

Build fails with lack of auto-generated headers #120

Closed jleidel closed 6 years ago

jleidel commented 6 years ago

The build errors out with the following (I also verified that the bug exists with '-j1'):

HOSTCC scripts/genksyms/lex.lex.o In file included from ./arch/riscv/include/asm/smp.h:19:0, from ./include/linux/smp.h:64, from ./include/linux/percpu.h:7, from ./include/linux/percpu-rwsem.h:7, from ./include/linux/fs.h:33, from /hdd/home/jleidel/dev/working/riscv-linux/scripts/gdb/linux/constants.py.in:15: ./arch/riscv/include/asm/asm-offsets.h:1:10: fatal error: generated/asm-offsets.h: No such file or directory

include <generated/asm-offsets.h>

      ^~~~~~~~~~~~~~~~~~~~~~~~~

compilation terminated. scripts/gdb/linux/Makefile:19: recipe for target 'scripts/gdb/linux/constants.py' failed make[2]: [scripts/gdb/linux/constants.py] Error 1 Kbuild:81: recipe for target 'build_constants_py' failed make[1]: [build_constants_py] Error 2 Makefile:1057: recipe for target 'prepare0' failed make: [prepare0] Error 2 make: Waiting for unfinished jobs....

palmer-dabbelt commented 6 years ago

riscv-unknown-linux-gnu- isn't usually what we call the compilers, it's usually something more like riscv64-unknown-linux-gnu-.

jleidel commented 6 years ago

Palmer, sorry... that was a typo on my part. My cross compilation prefix is currently set to: riscv64-unknown-linux-gnu-

palmer-dabbelt commented 6 years ago

I don't know, then. asm-offsets.h is a particularly special file (it's generated), so it's possible something is a bit wrong in our build system. Does a make mrproper fix this? I've seen some oddness when bouncing between build directories or ARCH values before.

jleidel commented 6 years ago

I just pulled a fresh tree from master and tried rebuilding (with make mrproper to force a clean), no luck.

$> echo $CCPREFIX riscv64-unknown-linux-gnu-

$> make ARCH=riscv CROSS_COMPILE=$CCPREFIX scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release UPD include/config/kernel.release WRAP arch/riscv/include/generated/uapi/asm/setup.h WRAP arch/riscv/include/generated/uapi/asm/unistd.h WRAP arch/riscv/include/generated/uapi/asm/bpf_perf_event.h WRAP arch/riscv/include/generated/uapi/asm/errno.h WRAP arch/riscv/include/generated/uapi/asm/fcntl.h WRAP arch/riscv/include/generated/uapi/asm/ioctl.h WRAP arch/riscv/include/generated/uapi/asm/ioctls.h WRAP arch/riscv/include/generated/uapi/asm/ipcbuf.h WRAP arch/riscv/include/generated/uapi/asm/mman.h WRAP arch/riscv/include/generated/uapi/asm/msgbuf.h WRAP arch/riscv/include/generated/uapi/asm/param.h WRAP arch/riscv/include/generated/uapi/asm/poll.h WRAP arch/riscv/include/generated/uapi/asm/posix_types.h WRAP arch/riscv/include/generated/uapi/asm/resource.h WRAP arch/riscv/include/generated/uapi/asm/sembuf.h WRAP arch/riscv/include/generated/uapi/asm/shmbuf.h WRAP arch/riscv/include/generated/uapi/asm/signal.h WRAP arch/riscv/include/generated/uapi/asm/socket.h WRAP arch/riscv/include/generated/uapi/asm/sockios.h WRAP arch/riscv/include/generated/uapi/asm/stat.h WRAP arch/riscv/include/generated/uapi/asm/statfs.h WRAP arch/riscv/include/generated/uapi/asm/swab.h WRAP arch/riscv/include/generated/uapi/asm/termbits.h WRAP arch/riscv/include/generated/uapi/asm/termios.h WRAP arch/riscv/include/generated/uapi/asm/types.h WRAP arch/riscv/include/generated/asm/bugs.h WRAP arch/riscv/include/generated/asm/cacheflush.h WRAP arch/riscv/include/generated/asm/checksum.h WRAP arch/riscv/include/generated/asm/clkdev.h WRAP arch/riscv/include/generated/asm/cputime.h WRAP arch/riscv/include/generated/asm/device.h WRAP arch/riscv/include/generated/asm/div64.h WRAP arch/riscv/include/generated/asm/dma.h WRAP arch/riscv/include/generated/asm/dma-contiguous.h WRAP arch/riscv/include/generated/asm/emergency-restart.h WRAP arch/riscv/include/generated/asm/errno.h WRAP arch/riscv/include/generated/asm/exec.h WRAP arch/riscv/include/generated/asm/fb.h WRAP arch/riscv/include/generated/asm/fcntl.h WRAP arch/riscv/include/generated/asm/ftrace.h WRAP arch/riscv/include/generated/asm/futex.h WRAP arch/riscv/include/generated/asm/hardirq.h WRAP arch/riscv/include/generated/asm/hash.h WRAP arch/riscv/include/generated/asm/hw_irq.h WRAP arch/riscv/include/generated/asm/ioctl.h WRAP arch/riscv/include/generated/asm/ioctls.h WRAP arch/riscv/include/generated/asm/ipcbuf.h WRAP arch/riscv/include/generated/asm/irq_regs.h WRAP arch/riscv/include/generated/asm/irq_work.h WRAP arch/riscv/include/generated/asm/kdebug.h WRAP arch/riscv/include/generated/asm/kmap_types.h WRAP arch/riscv/include/generated/asm/kvm_para.h WRAP arch/riscv/include/generated/asm/local.h WRAP arch/riscv/include/generated/asm/mm-arch-hooks.h WRAP arch/riscv/include/generated/asm/mman.h WRAP arch/riscv/include/generated/asm/module.h WRAP arch/riscv/include/generated/asm/msgbuf.h WRAP arch/riscv/include/generated/asm/mutex.h WRAP arch/riscv/include/generated/asm/param.h WRAP arch/riscv/include/generated/asm/percpu.h WRAP arch/riscv/include/generated/asm/poll.h WRAP arch/riscv/include/generated/asm/posix_types.h WRAP arch/riscv/include/generated/asm/preempt.h WRAP arch/riscv/include/generated/asm/resource.h WRAP arch/riscv/include/generated/asm/scatterlist.h WRAP arch/riscv/include/generated/asm/sections.h WRAP arch/riscv/include/generated/asm/sembuf.h WRAP arch/riscv/include/generated/asm/serial.h WRAP arch/riscv/include/generated/asm/setup.h WRAP arch/riscv/include/generated/asm/shmbuf.h WRAP arch/riscv/include/generated/asm/shmparam.h WRAP arch/riscv/include/generated/asm/signal.h WRAP arch/riscv/include/generated/asm/socket.h WRAP arch/riscv/include/generated/asm/sockios.h WRAP arch/riscv/include/generated/asm/stat.h WRAP arch/riscv/include/generated/asm/statfs.h WRAP arch/riscv/include/generated/asm/swab.h WRAP arch/riscv/include/generated/asm/termbits.h WRAP arch/riscv/include/generated/asm/termios.h WRAP arch/riscv/include/generated/asm/topology.h WRAP arch/riscv/include/generated/asm/trace_clock.h WRAP arch/riscv/include/generated/asm/types.h WRAP arch/riscv/include/generated/asm/unaligned.h WRAP arch/riscv/include/generated/asm/user.h WRAP arch/riscv/include/generated/asm/vga.h WRAP arch/riscv/include/generated/asm/vmlinux.lds.h WRAP arch/riscv/include/generated/asm/xor.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 HOSTCC scripts/basic/bin2c CHK include/generated/timeconst.h UPD include/generated/timeconst.h CC kernel/bounds.s CHK include/generated/bounds.h UPD include/generated/bounds.h GEN scripts/gdb/linux/constants.py In file included from ./arch/riscv/include/asm/smp.h:19:0, from ./include/linux/smp.h:64, from ./include/linux/percpu.h:7, from ./include/linux/percpu-rwsem.h:7, from ./include/linux/fs.h:33, from /hdd/home/jleidel/dev/working/riscv-linux/scripts/gdb/linux/constants.py.in:15: ./arch/riscv/include/asm/asm-offsets.h:1:10: fatal error: generated/asm-offsets.h: No such file or directory

include <generated/asm-offsets.h>

      ^~~~~~~~~~~~~~~~~~~~~~~~~

compilation terminated. scripts/gdb/linux/Makefile:19: recipe for target 'scripts/gdb/linux/constants.py' failed make[2]: [scripts/gdb/linux/constants.py] Error 1 Kbuild:81: recipe for target 'build_constants_py' failed make[1]: [build_constants_py] Error 2 Makefile:1057: recipe for target 'prepare0' failed make: *** [prepare0] Error 2

jleidel commented 6 years ago

I found the correct recipe of commands. Posting here for archival purposes: $> export RISCV=/path/to/riscv/install $> export PATH=$PATH:$RISCV/bin $> export CCPREFIX=riscv64-unknown-linux-gnu- $> make mrproper $> make ARCH=riscv CROSS_COMPILE=$CCPREFIX defconfig $> make ARCH=riscv CROSS_COMPILE=$CCPREFIX menuconfig // Enable SMP build and set max cores to 32 $> make ARCH=riscv CROSS_COMPILE=$CCPREFIX

ghost commented 6 years ago

Since the build fails because GDB scripts cannot be built (because the kernel build system attempts to create them too soon, it seems), CONFIG_GDB_SCRIPTS=n fixes it for me.