# git rev-parse -q --verify e4b79900222b8cccd4da4a7a89581f0e1b764ed2^{commit} e4b79900222b8cccd4da4a7a89581f0e1b764ed2 already have revision, skipping fetch # git checkout -q -f -B kisskb e4b79900222b8cccd4da4a7a89581f0e1b764ed2 # git clean -qxdf # < git log -1 # commit e4b79900222b8cccd4da4a7a89581f0e1b764ed2 # Author: Michael Ellerman # Date: Tue Mar 13 15:58:11 2018 +1100 # # powerpc/64s: Fix NULL AT_BASE_PLATFORM when using DT CPU features # # When running virtualised the powerpc kernel is able to run the system # in "compat mode" - which means the kernel and hardware are pretending # to userspace that the CPU is an older version than it actually is. # # AT_BASE_PLATFORM is an AUXV entry that we export to userspace for use # when we're running in that mode, which tells userspace the "platform" # string for the real CPU version, as opposed to the faked version. # # Although we don't support compat mode when using DT CPU features, and # arguably don't need to set AT_BASE_PLATFORM, the existing cputable # based code always sets it even when we're running bare metal. That # means the lack of AT_BASE_PLATFORM is a user-visible artifact of the # fact that the kernel is using DT CPU features, which we don't want. # # So set it in the DT CPU features code also. # # This results in eg: # $ LD_SHOW_AUXV=1 /bin/true | grep "AT_.*PLATFORM" # AT_PLATFORM: power9 # AT_BASE_PLATFORM:power9 # # Signed-off-by: Michael Ellerman # Reviewed-by: Nicholas Piggin # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 e4b79900222b8cccd4da4a7a89581f0e1b764ed2 # < make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0x378882C # 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 # yes \n | make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe yes: write error # make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents': /kisskb/src/fs/f2fs/file.c:2786:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec': /kisskb/src/net/bridge/br_netlink.c:635:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence': /kisskb/src/drivers/dma-buf/reservation.c:207:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c:160:17: note: 'k' was declared here /kisskb/src/net/core/filter.c: In function '____bpf_sock_ops_cb_flags_set': /kisskb/src/net/core/filter.c:3382:6: warning: unused variable 'val' [-Wunused-variable] /kisskb/src/lib/string.c: In function 'strim': /kisskb/src/lib/string.c:478:8: sorry, unimplemented: inlining failed in call to 'strlen': redefined extern inline functions are not considered for inlining /kisskb/src/lib/string.c:460:7: sorry, unimplemented: called from here /kisskb/src/scripts/Makefile.build:316: recipe for target 'lib/string.o' failed make[2]: *** [lib/string.o] Error 1 /kisskb/src/Makefile:1048: recipe for target 'lib' failed make[1]: *** [lib] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] /kisskb/src/drivers/input/rmi4/rmi_f11.c: In function 'rmi_f11_attention': /kisskb/src/drivers/input/rmi4/rmi_f11.c:631:3: warning: 'abs_fingers' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/rmi4/rmi_f11.c:580:6: note: 'abs_fingers' was declared here /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function 'arm_v7s_map': /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:433:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:429:22: note: 'cptep' was declared here /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit': /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:89:20: warning: 'inst' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:75:3: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c: In function 'nv50_disp_atomic_commit_tail': /kisskb/src/arch/powerpc/include/asm/io.h:178:1: warning: 'b' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1813:18: note: 'b' was declared here /kisskb/src/arch/powerpc/include/asm/io.h:178:1: warning: 'g' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1813:15: note: 'g' was declared here /kisskb/src/arch/powerpc/include/asm/io.h:178:1: warning: 'r' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nv50_display.c:1813:12: note: 'r' was declared here Makefile:146: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Command 'make -s -j 10 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc # Build took: 0:05:47.282815