# git rev-parse -q --verify 8b7f59de92ac65aa21c7d779274dbfa577ae2d2c^{commit} 8b7f59de92ac65aa21c7d779274dbfa577ae2d2c already have revision, skipping fetch # git checkout -q -f -B kisskb 8b7f59de92ac65aa21c7d779274dbfa577ae2d2c # git clean -qxdf # < git log -1 # commit 8b7f59de92ac65aa21c7d779274dbfa577ae2d2c # Author: Michael Ellerman # Date: Sat Jul 6 22:08:33 2024 +1000 # # selftests/powerpc: Fix build with USERCFLAGS set # # Currently building the powerpc selftests with USERCFLAGS set to anything # causes the build to break: # # $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error # ... # gcc -Wno-error cache_shape.c ... # cache_shape.c:18:10: fatal error: utils.h: No such file or directory # 18 | #include "utils.h" # | ^~~~~~~~~ # compilation terminated. # # This happens because the USERCFLAGS are added to CFLAGS in lib.mk, which # causes the check of CFLAGS in powerpc/flags.mk to skip setting CFLAGS at # all, resulting in none of the usual CFLAGS being passed. That can # be seen in the output above, the only flag passed to the compiler is # -Wno-error. # # Fix it by dropping the conditional setting of CFLAGS in flags.mk. # Instead always set CFLAGS, but also append USERCFLAGS if they are set. # # Note that appending to CFLAGS (with +=) wouldn't work, because flags.mk # is included by multiple Makefiles (to support partial builds), causing # CFLAGS to be appended to multiple times. Additionally that would place # the USERCFLAGS prior to the standard CFLAGS, meaning the USERCFLAGS # couldn't override the standard flags. Being able to override the # standard flags is desirable, for example for adding -Wno-error. # # With the fix in place, the CFLAGS are set correctly, including the # USERCFLAGS: # # $ make -C tools/testing/selftests/powerpc V=1 USERCFLAGS=-Wno-error # ... # gcc -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"v6.10-rc2-7-gdea17e7e56c3"' # -I/home/michael/linux/tools/testing/selftests/powerpc/include -Wno-error # cache_shape.c ... # # Fixes: 5553a79387e9 ("selftests/powerpc: Add flags.mk to support pmu buildable") # Signed-off-by: Michael Ellerman # Link: https://msgid.link/20240706120833.909853-1-mpe@ellerman.id.au # < /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 8b7f59de92ac65aa21c7d779274dbfa577ae2d2c # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc86xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc86xx_defconfig Using /kisskb/src/arch/powerpc/configs/mpc86xx_base.config as base Merging /kisskb/src/arch/powerpc/configs/86xx-hw.config Merging /kisskb/src/arch/powerpc/configs/fsl-emb-nonhw.config # # merged configuration written to .config (needs make) # # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc86xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc86xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc86xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:135.22-137.4: Warning (pci_bridge): /pcie@f1008000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:92.7-117.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:102.9-116.4: Warning (pci_bridge): /pcie@f1008000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:139.22-141.4: Warning (pci_bridge): /pcie@f1009000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@f1009000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:30.11-32.6: Warning (i2c_bus_reg): /soc@f1000000/i2c@3000/rtc@68: missing or empty reg property /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:135.22-137.4: Warning (interrupt_provider): /pcie@f1008000: '#interrupt-cells' found, but node is not an interrupt provider also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:92.7-117.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:139.22-141.4: Warning (interrupt_provider): /pcie@f1009000: '#interrupt-cells' found, but node is not an interrupt provider also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc86xx_defconfig_powerpc-gcc5 # Build took: 0:01:08.947080