# git rev-parse -q --verify b0b9f351fd616a01eea7c8d44e798db5a122a005^{commit} b0b9f351fd616a01eea7c8d44e798db5a122a005 already have revision, skipping fetch # git checkout -q -f -B kisskb b0b9f351fd616a01eea7c8d44e798db5a122a005 # git clean -qxdf # < git log -1 # commit b0b9f351fd616a01eea7c8d44e798db5a122a005 # Author: Masahiro Yamada # Date: Fri Jul 5 19:01:44 2019 +0900 # # powerpc/boot: pass CONFIG options in a simpler and more robust way # # Commit 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to wrapper") # was wrong, but commit e41b93a6be57 ("powerpc/boot: Fix build failures # with -j 1") was also wrong. # # The correct dependency is: # # $(obj)/serial.o: $(obj)/autoconf.h # # However, I do not see the reason why we need to copy autoconf.h to # arch/power/boot/. Nor do I see consistency in the way of passing # CONFIG options. # # decompress.c references CONFIG_KERNEL_GZIP and CONFIG_KERNEL_XZ, which # are passed via the command line. # # serial.c includes autoconf.h to reference a couple of CONFIG options, # but this is fragile because we often forget to include "autoconf.h" # from source files. # # In fact, it is already broken. # # ppc_asm.h references CONFIG_PPC_8xx, but utils.S is not given any way # to access CONFIG options. So, CONFIG_PPC_8xx is never defined here. # # Pass $(LINUXINCLUDE) to make sure CONFIG options are accessible from # all .c and .S files in arch/powerpc/boot/. # # I also removed the -traditional flag to make include/linux/kconfig.h # work. This flag makes the preprocessor imitate the behavior of the # pre-standard C compiler, but I do not understand why it is necessary. # # Signed-off-by: Masahiro Yamada # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20190705100144.28785-2-yamada.masahiro@socionext.com # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 b0b9f351fd616a01eea7c8d44e798db5a122a005 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc64e_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.28': /kisskb/src/net/bridge/br_netlink.c:652:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1851:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1764:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:331:21: note: 'pdeo' was declared here /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o (.PPC.EMB.apuinfo): unexpected non-allocatable section. Did you forget to use "ax"/"aw" in a .S file? Note that for example contains section definitions for use in .S files. INFO: Uncompressed kernel (size 0xb8eda0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-5.2.0-rc2-gb0b9f351fd61 Created: Mon Jul 8 16:33:17 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4842026 Bytes = 4728.54 KiB = 4.62 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc64e_defconfig_powerpc-gcc4.6 # Build took: 0:01:46.428515