[Ubuntu 21.04] Failed to create make's target "targz-pkg"

[pklimowx]

I followed the instruction in README and install gpu kernel successfully on various OSes. However, I cannot accomplish that on Ubuntu 21.04.

I've installed the following packages:

- build-essential
- git
- gcc
- bison
- flex
- libssl-dev
- libelf-dev
- make
- tar
- bc
- cpio
- openssl
- liblz4-tool

also, I've made some changes in the kernel config file (thanks to these changes I can install gpu kernel on both CentOS and RHEL, errors were similar so I've given it a try for Ubuntu 21.04 as well):

CONFIG_SYSTEM_TRUSTED_KEYS=""
#CONFIG_DEBUG_INFO_BTF
CONFIG_SYSTEM_EXTRA_CERTIFICATE=y
CONFIG_SYSTEM_EXTRA_CERTIFICATE_SIZE=4096
CONFIG_SECONDARY_TRUSTED_KEYRING=y

Sadly, this is not enough as errors occurred during building targz-pkg target:

STDERR:

arch/x86/entry/thunk_64.o: warning: objtool: missing symbol table
gmake[4]: *** [scripts/Makefile.build:348: arch/x86/entry/thunk_64.o] Error 1
gmake[4]: *** Deleting file 'arch/x86/entry/thunk_64.o'
gmake[4]: *** Waiting for unfinished jobs....
arch/x86/hyperv/hv_apic.c: In function ‘__send_ipi_one’:
arch/x86/hyperv/hv_apic.c:201:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  201 | }
      | ^
arch/x86/hyperv/hv_apic.c: In function ‘hv_send_ipi_mask_allbutself’:
arch/x86/hyperv/hv_apic.c:226:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  226 | }
      | ^
arch/x86/kernel/cpu/mce/core.o: warning: objtool: mce_panic()+0x11a: unreachable instruction
gmake[3]: *** [scripts/Makefile.build:500: arch/x86/entry] Error 2
gmake[3]: *** Waiting for unfinished jobs....
drivers/atm/horizon.o: warning: objtool: interrupt_handler()+0x1bb: unreachable instruction
kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x18: unreachable instruction
fs/btrfs/extent_io.o: warning: objtool: __set_extent_bit.cold()+0xb: unreachable instruction
drivers/cpufreq/cpufreq_ondemand.c: In function ‘od_set_powersave_bias’:
drivers/cpufreq/cpufreq_ondemand.c:446:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  446 | }
      | ^
fs/btrfs/relocation.o: warning: objtool: update_backref_cache.part.0()+0x1eb: unreachable instruction
net/core/skbuff.o: warning: objtool: skb_push.cold()+0x14: unreachable instruction
fs/jffs2/xattr.c: In function ‘jffs2_build_xattr_subsystem’:
fs/jffs2/xattr.c:887:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  887 | }
      | ^
arch/x86/kernel/smpboot.o: warning: objtool: native_play_dead()+0x11d: unreachable instruction
arch/x86/kernel/kvm.c: In function ‘kvm_send_ipi_mask_allbutself’:
arch/x86/kernel/kvm.c:503:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  503 | }
      | ^
gmake[2]: *** [Makefile:1706: arch/x86] Error 2
gmake[2]: *** Waiting for unfinished jobs....
drivers/message/fusion/mptbase.o: warning: objtool: mpt_HardResetHandler()+0x203: unreachable instruction
drivers/misc/sgi-gru/grukservices.o: warning: objtool: gru_wait_abort_proc()+0x4e: unreachable instruction
drivers/net/ethernet/neterion/vxge/vxge-main.c: In function ‘VXGE_COMPLETE_VPATH_TX’:
drivers/net/ethernet/neterion/vxge/vxge-main.c:119:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
  119 | }
      | ^
drivers/scsi/aic7xxx/aic79xx_core.o: warning: objtool: ahd_intr.part.0()+0x110: unreachable instruction
drivers/vhost/scsi.c: In function ‘vhost_scsi_flush’:
drivers/vhost/scsi.c:1374:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 1374 | }
      | ^
drivers/vhost/vhost.c: In function ‘log_used.isra’:
drivers/vhost/vhost.c:1931:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 1931 | }
      | ^
drivers/usb/misc/usbtest.c: In function ‘test_queue’:
drivers/usb/misc/usbtest.c:2148:1: warning: the frame size of 1192 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 2148 | }
      | ^
drivers/scsi/pcmcia/aha152x_core.o: warning: objtool: run()+0x4c7: unreachable instruction
drivers/scsi/lpfc/lpfc_init.c: In function ‘lpfc_cpuhp_get_eq’:
drivers/scsi/lpfc/lpfc_init.c:11029:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
11029 | }
      | ^
gmake[1]: *** [scripts/Makefile.package:109: targz-pkg] Error 2
gmake: *** [Makefile:1441: targz-pkg] Error 2

Any help appreciated.

[pklimowx]

After applying that patch everything is working fine.