# git rev-parse -q --verify d799769188529abc6cbf035a10087a51f7832b6b^{commit} d799769188529abc6cbf035a10087a51f7832b6b already have revision, skipping fetch # git checkout -q -f -B kisskb d799769188529abc6cbf035a10087a51f7832b6b # git clean -qxdf # < git log -1 # commit d799769188529abc6cbf035a10087a51f7832b6b # Author: Alexey Kardashevskiy # Date: Wed Mar 9 17:18:22 2022 +1100 # # powerpc/64: Add UADDR64 relocation support # # When ld detects unaligned relocations, it emits R_PPC64_UADDR64 # relocations instead of R_PPC64_RELATIVE. Currently R_PPC64_UADDR64 are # detected by arch/powerpc/tools/relocs_check.sh and expected not to work. # Below is a simple chunk to trigger this behaviour (this disables # optimization for the demonstration purposes only, this also happens with # -O1/-O2 when CONFIG_PRINTK_INDEX=y, for example): # # \#pragma GCC push_options # \#pragma GCC optimize ("O0") # struct entry { # const char *file; # int line; # } __attribute__((packed)); # static const struct entry e1 = { .file = __FILE__, .line = __LINE__ }; # static const struct entry e2 = { .file = __FILE__, .line = __LINE__ }; # ... # prom_printf("e1=%s %lx %lx\n", e1.file, (unsigned long) e1.file, mfmsr()); # prom_printf("e2=%s %lx\n", e2.file, (unsigned long) e2.file); # \#pragma GCC pop_options # # This adds support for UADDR64 for 64bit. This reuses __dynamic_symtab # from the 32bit code which supports more relocation types already. # # Because RELACOUNT includes only R_PPC64_RELATIVE, this replaces it with # RELASZ which is the size of all relocation records. # # Signed-off-by: Alexey Kardashevskiy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20220309061822.168173-1-aik@ozlabs.ru # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 d799769188529abc6cbf035a10087a51f7832b6b # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # Added to kconfig CONFIG_PPC_E500MC=y # Added to kconfig CONFIG_VIRTUALIZATION=y # Added to kconfig CONFIG_KVM_E500MC=y # Added to kconfig # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:4328:warning: override: reassigning to symbol PPC_E500MC .config:4329:warning: override: reassigning to symbol VIRTUALIZATION # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/build_bug.h:5, from /kisskb/src/include/linux/container_of.h:5, from /kisskb/src/include/linux/list.h:5, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 22 | #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) | ^ /kisskb/src/include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:13: note: in expansion of macro 'IS_ERR_VALUE' 139 | if (IS_ERR_VALUE(fep->ring_mem_addr)) | ^~~~~~~~~~~~ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0" /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0" /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 # Build took: 0:03:25.385085