Using -Oline -j 72 W=1 redirect to /tmp/tmp.lCR2AxSJuB and /tmp/tmp.Tg9JGUfhvl
LLVM=1 cc=clang
clang version 18.1.1 (Fedora 18.1.1-1.fc40)
Tree base:
ccf23c916ca3 ("tools: ynl: make the attr and msg helpers more C++ friendly")
Baseline building the tree
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CC      net/ethtool/cabletest.o
  CC [M]  net/caif/cfdbgl.o
  CC [M]  net/caif/cfveil.o
  CC [M]  net/caif/cfserl.o
  CC [M]  net/caif/cfdgml.o
  CC [M]  net/caif/cfvidl.o
  CC [M]  net/caif/cfrfml.o
  CC [M]  net/caif/cfutill.o
  CC [M]  net/caif/cfctrl.o
  AR      net/ethtool/built-in.a
  AR      net/built-in.a
  CC [M]  net/caif/cfmuxl.o
  CC [M]  net/caif/cffrml.o
  CC [M]  net/caif/cfpkt_skbuff.o
  CC [M]  net/caif/cfcnfg.o
  CC [M]  net/caif/caif_dev.o
  CC [M]  net/caif/cfsrvl.o
  CC [M]  drivers/net/caif/caif_serial.o
  CC [M]  drivers/net/caif/caif_virtio.o
  CC [M]  net/caif/caif_usb.o
  CC [M]  net/caif/chnl_net.o
  CC [M]  net/caif/caif_socket.o
  LD [M]  net/caif/caif.o
  CHK     kernel/kheaders_data.tar.xz
  GEN     kernel/kheaders_data.tar.xz
  CC [M]  kernel/kheaders.o
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  GEN     .vmlinux.objs
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  LD      .tmp_vmlinux.kallsyms1
  NM      .tmp_vmlinux.kallsyms1.syms
  KSYMS   .tmp_vmlinux.kallsyms1.S
  AS      .tmp_vmlinux.kallsyms1.S
  LD      .tmp_vmlinux.kallsyms2
  NM      .tmp_vmlinux.kallsyms2.syms
  KSYMS   .tmp_vmlinux.kallsyms2.S
  AS      .tmp_vmlinux.kallsyms2.S
  LD      .tmp_vmlinux.kallsyms3
  NM      .tmp_vmlinux.kallsyms3.syms
  KSYMS   .tmp_vmlinux.kallsyms3.S
  AS      .tmp_vmlinux.kallsyms3.S
  LD      vmlinux
  NM      System.map
  SORTTAB vmlinux
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  RSTRIP  vmlinux
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  LD [M]  kernel/kheaders.ko
  LD [M]  drivers/net/caif/caif_serial.ko
  LD [M]  drivers/net/caif/caif_virtio.ko
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#2388)
  CC [M]  net/caif/caif.mod.o
  CC [M]  net/caif/chnl_net.mod.o
  LD [M]  net/caif/caif.ko
  LD [M]  net/caif/chnl_net.ko
  CC [M]  net/caif/caif_socket.mod.o
  CC [M]  net/caif/caif_usb.mod.o
  LD [M]  net/caif/caif_socket.ko
  LD [M]  net/caif/caif_usb.ko
Building the tree before the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC      net/ethtool/cabletest.o
  AR      net/ethtool/built-in.a
  AR      net/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  GEN     .vmlinux.objs
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  LD      .tmp_vmlinux.kallsyms1
  NM      .tmp_vmlinux.kallsyms1.syms
  KSYMS   .tmp_vmlinux.kallsyms1.S
  AS      .tmp_vmlinux.kallsyms1.S
  LD      .tmp_vmlinux.kallsyms2
  NM      .tmp_vmlinux.kallsyms2.syms
  KSYMS   .tmp_vmlinux.kallsyms2.S
  AS      .tmp_vmlinux.kallsyms2.S
  LD      .tmp_vmlinux.kallsyms3
  NM      .tmp_vmlinux.kallsyms3.syms
  KSYMS   .tmp_vmlinux.kallsyms3.S
  AS      .tmp_vmlinux.kallsyms3.S
  LD      vmlinux
  NM      System.map
  SORTTAB vmlinux
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  RSTRIP  vmlinux
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#2389)
Building the tree with the patch
make[1]: Entering directory '/home/nipa/net-next/wt-0/build_clang'
  GEN     Makefile
#
# configuration written to .config
#
make[1]: Leaving directory '/home/nipa/net-next/wt-0/build_clang'
  SYNC    include/config/auto.conf
  GEN     Makefile
  GEN     Makefile
mkdir -p /home/nipa/net-next/wt-0/build_clang/tools/objtool && make O=/home/nipa/net-next/wt-0/build_clang subdir=tools/objtool --no-print-directory -C objtool 
  INSTALL libsubcmd_headers
  CALL    ../scripts/checksyscalls.sh
  CHK     kernel/kheaders_data.tar.xz
  CC      net/ethtool/cabletest.o
  AR      net/ethtool/built-in.a
  AR      net/built-in.a
  AR      built-in.a
  AR      vmlinux.a
  LD      vmlinux.o
  OBJCOPY modules.builtin.modinfo
  GEN     modules.builtin
  GEN     .vmlinux.objs
  MODPOST Module.symvers
  UPD     include/generated/utsversion.h
  CC      init/version-timestamp.o
  LD      .tmp_vmlinux.kallsyms1
  NM      .tmp_vmlinux.kallsyms1.syms
  KSYMS   .tmp_vmlinux.kallsyms1.S
  AS      .tmp_vmlinux.kallsyms1.S
  LD      .tmp_vmlinux.kallsyms2
  NM      .tmp_vmlinux.kallsyms2.syms
  KSYMS   .tmp_vmlinux.kallsyms2.S
  AS      .tmp_vmlinux.kallsyms2.S
  LD      .tmp_vmlinux.kallsyms3
  NM      .tmp_vmlinux.kallsyms3.syms
  KSYMS   .tmp_vmlinux.kallsyms3.S
  AS      .tmp_vmlinux.kallsyms3.S
  LD      vmlinux
  NM      System.map
  SORTTAB vmlinux
  RELOCS  arch/x86/boot/compressed/vmlinux.relocs
  RSTRIP  vmlinux
  CC      arch/x86/boot/version.o
  OBJCOPY arch/x86/boot/compressed/vmlinux.bin
  CC      arch/x86/boot/compressed/kaslr.o
  VOFFSET arch/x86/boot/compressed/../voffset.h
  CC      arch/x86/boot/compressed/misc.o
  GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
  MKPIGGY arch/x86/boot/compressed/piggy.S
  AS      arch/x86/boot/compressed/piggy.o
  LD      arch/x86/boot/compressed/vmlinux
  ZOFFSET arch/x86/boot/zoffset.h
  OBJCOPY arch/x86/boot/vmlinux.bin
  AS      arch/x86/boot/header.o
  LD      arch/x86/boot/setup.elf
  OBJCOPY arch/x86/boot/setup.bin
  BUILD   arch/x86/boot/bzImage
Kernel: arch/x86/boot/bzImage is ready  (#2390)