编译Uboot报错arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv5

make V=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j12
arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv5
arm-linux-gnueabihf-gcc: note: valid arguments are: armv4 armv4t armv5t armv5te armv5tej armv6 armv6j armv6k armv6z armv6kz armv6zk armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a armv8.1-a armv8.2-a armv8.3-a armv8.4-a armv8.5-a armv8.6-a armv8-m.base armv8-m.main armv8-r armv8.1-m.main iwmmxt iwmmxt2; did you mean ‘armv4’?
arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’
set -e; : '  CHK     include/config/uboot.release'; mkdir -p include/config/; 	echo "2016.03$(/bin/bash ./scripts/setlocalversion .)" < include/config/auto.conf > include/config/uboot.release.tmp; if [ -r include/config/uboot.release ] && cmp -s include/config/uboot.release include/config/uboot.release.tmp; then rm -f include/config/uboot.release.tmp; else : '  UPD     include/config/uboot.release'; mv -f include/config/uboot.release.tmp include/config/uboot.release; fi
set -e; : '  CHK     include/generated/timestamp_autogenerated.h'; mkdir -p include/generated/; 	(if test -n "${SOURCE_DATE_EPOCH}"; then SOURCE_DATE="@${SOURCE_DATE_EPOCH}"; DATE=""; for date in gdate date.gnu date; do ${date} -u -d "${SOURCE_DATE}" >/dev/null 2>&1 && DATE="${date}"; done; if test -n "${DATE}"; then LC_ALL=C ${DATE} -u -d "${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; LC_ALL=C ${DATE} -u -d "${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; LC_ALL=C ${DATE} -u -d "${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; LC_ALL=C ${DATE} -u -d "${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; else return 42; fi; else LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; LC_ALL=C date +'#define U_BOOT_TIME "%T"'; LC_ALL=C date +'#define U_BOOT_TZ "%z"'; LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; fi) < Makefile > include/generated/timestamp_autogenerated.h.tmp; if [ -r include/generated/timestamp_autogenerated.h ] && cmp -s include/generated/timestamp_autogenerated.h include/generated/timestamp_autogenerated.h.tmp; then rm -f include/generated/timestamp_autogenerated.h.tmp; else : '  UPD     include/generated/timestamp_autogenerated.h'; mv -f include/generated/timestamp_autogenerated.h.tmp include/generated/timestamp_autogenerated.h; fi
make -f ./scripts/Makefile.build obj=scripts/basic
rm -f .tmp_quiet_recordmcount
  arm-linux-gnueabihf-gcc -E -Wp,-MD,./.u-boot.cfg.d -D__KERNEL__ -D__UBOOT__ -D__ARM__ -marm -mno-thumb-interwork  -mabi=aapcs-linux  -mword-relocations  -fno-pic  -mno-unaligned-access -ffunction-sections -fdata-sections -fno-common -ffixed-r9  -msoft-float  -pipe  -march=armv5  -Iinclude   -I./arch/arm/include -include ./include/linux/kconfig.h -nostdinc -isystem /usr/lib/gcc-cross/arm-linux-gnueabihf/11/include -include ./include/u-boot/u-boot.lds.h -DCPUDIR=arch/arm/cpu/armv7  -ansi -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o u-boot.cfg include/config.h
arm-linux-gnueabihf-gcc: error: unrecognized -march target: armv5
arm-linux-gnueabihf-gcc: note: valid arguments are: armv4 armv4t armv5t armv5te armv5tej armv6 armv6j armv6k armv6z armv6kz armv6zk armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a armv8.1-a armv8.2-a armv8.3-a armv8.4-a armv8.5-a armv8.6-a armv8-m.base armv8-m.main armv8-r armv8.1-m.main iwmmxt iwmmxt2; did you mean ‘armv4’?
arm-linux-gnueabihf-gcc: error: missing argument to ‘-march=’
make: *** [Makefile:924：u-boot.cfg] 错误 1

为了避免编译时使用 -march=armv5，可以直接修改 arch/arm/Makefile，将所有带有 armv5 的部分替换为 armv7-a。

你可以使用 sed 来自动替换：

sed -i 's/-march=armv5/-march=armv7-a/g' ./arch/arm/Makefile

make V=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j12