# git rev-parse -q --verify 91288fcc5a7ebb6378f442916299dc20d037aa72^{commit}
91288fcc5a7ebb6378f442916299dc20d037aa72
already have revision, skipping fetch
# git checkout -q -f -B kisskb 91288fcc5a7ebb6378f442916299dc20d037aa72
# git clean -qxdf
# < git log -1
# commit 91288fcc5a7ebb6378f442916299dc20d037aa72
# Author: Oliver O'Halloran <oohall@gmail.com>
# Date:   Wed Oct 23 12:36:35 2019 +1100
# 
#     powerpc/boot: Fix the initrd being overwritten under qemu
#     
#     When booting under OF the zImage expects the initrd address and size
#     to be passed to it using registers r3 and r4. SLOF (guest firmware
#     used by QEMU) currently doesn't do this so the zImage is not aware of
#     the initrd location. This can result in initrd corruption either
#     though the zImage extracting the vmlinux over the initrd, or by the
#     vmlinux overwriting the initrd when relocating itself.
#     
#     QEMU does put the linux,initrd-start and linux,initrd-end properties
#     into the devicetree to vmlinux to find the initrd. So we can work
#     around the problem by also looking for those properties in the zImage.
#     
#     Cc: stable@vger.kernel.org
#     Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191023013635.2512-1-oohall@gmail.com
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 91288fcc5a7ebb6378f442916299dc20d037aa72
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x4E8048DE
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n
# Added to kconfig CONFIG_UBSAN=n
# yes \n | make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/arch/powerpc/xmon/xmon.c:64:
/kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc':
/kisskb/src/arch/powerpc/xmon/dis-asm.h:16:13: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=]
  printf("%.8x", insn);
          ~~~^   ~~~~
          %.8lx
/kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu':
/kisskb/src/arch/powerpc/xmon/dis-asm.h:22:13: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=]
  printf("%.8x", insn);
          ~~~^   ~~~~
          %.8lx
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[1]: *** [/kisskb/src/Makefile:1078: vmlinux] Error 1
make: *** [Makefile:179: sub-make] Error 2
Command 'make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc8
# Build took: 0:03:54.591910