# git rev-parse -q --verify fba1153fe141609c48004a4438335a85159f34de^{commit}
fba1153fe141609c48004a4438335a85159f34de
already have revision, skipping fetch
# git checkout -q -f -B kisskb fba1153fe141609c48004a4438335a85159f34de
# git clean -qxdf
# < git log -1
# commit fba1153fe141609c48004a4438335a85159f34de
# Author: Kees Cook <keescook@chromium.org>
# Date:   Tue Aug 13 08:15:32 2019 -0700
# 
#     kbuild: Parameterize kallsyms generation and correct reporting
#     
#     When kallsyms generation happens, temporary vmlinux outputs are linked
#     but the quiet make output didn't report it, giving the impression that
#     the prior command is taking longer than expected.
#     
#     Instead, report the linking step explicitly. While at it, this
#     consolidates the repeated "kallsyms generation step" into a single
#     function and removes the existing copy/pasting.
#     
#     Signed-off-by: Kees Cook <keescook@chromium.org>
#     Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 fba1153fe141609c48004a4438335a85159f34de
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_PERF_EVENTS=n
# yes \n | make -s -j 80 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 80 ARCH=powerpc O=/kisskb/build/kbuild_powernv_defconfig+NO_PERF_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
WARNING: vmlinux.o(.text+0x2fd0): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

WARNING: "drm_client_close" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "ahci_em_messages" [vmlinux] is a static EXPORT_SYMBOL_GPL
WARNING: "ftrace_set_clr_event" [vmlinux] is a static EXPORT_SYMBOL_GPL
WARNING: "drm_client_close" [vmlinux] is a static EXPORT_SYMBOL
WARNING: "ahci_em_messages" [vmlinux] is a static EXPORT_SYMBOL_GPL
WARNING: "ftrace_set_clr_event" [vmlinux] is a static EXPORT_SYMBOL_GPL
Completed OK
# rm -rf /kisskb/build/kbuild_powernv_defconfig+NO_PERF_ppc64le-gcc5
# Build took: 0:02:51.906954