编译报错日志
make[3]: *** ../: Is a directory. Stop.
>>> dhcpcd 7.0.3 Building
PATH="/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/bin:/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games" /usr/bin/make -C /home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/build/dhcpcd-7.0.3 all
for x in src hooks; do cd $x; /usr/bin/make all; cd ..; done
------------------------------------------------------------------------------------------------------
/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/bin/arm-linux-gnueabi-gcc -fPIC -DPIC -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DHAVE_CONFIG_H -DNDEBUG -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DINET -DARP -DARPING -DIPV4LL -DINET6 -DDHCP6 -DAUTH -DPLUGIN_DEV -I../../ -I../..//src -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -std=c99 -I/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/bin/../arm-buildroot-linux-gnueabi/sysroot/usr/include -c udev.c -o udev.So
/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/bin/arm-linux-gnueabi-gcc -Wl,-export-dynamic -shared -Wl,-x -o udev.so -Wl,-soname,udev.so \
udev.So -L/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/host/bin/../arm-buildroot-linux-gnueabi/sysroot/usr/lib -ludev
make[3]: *** ../: Is a directory. Stop.
>>> dhcpcd 7.0.3 Installing to target
------------------------------------------------------------------------------
# Move RDM monotonic to new location
if [ ! -e /home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/target/var/db/dhcpcd/rdm_monotonic -a \
-e /home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/target/var/db/dhcpcd/../dhcpcd-rdm.monotonic ]; \
then \
mv /home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/target/var/db/dhcpcd/../dhcpcd-rdm.monotonic \
/home/lxg/code/t113_linux/out/t113/evb1_auto/longan/buildroot/target/var/db/dhcpcd/rdm_monotonic; \
fi
make[3]: *** ../: Is a directory. Stop.
调试方法
dhcpcd/Makefile
添加echo打印，辅助调试
SUBDIRS= src hooks
#######################
all: config.h
@echo "---------start-------------"
for x in ${SUBDIRS}; do cd $$x; ${MAKE} $@ || exit $$?; cd ..; done
@echo "----------end--------------"
dhcpcd/hooks/Makefile
TOP= ..
include ${TOP}/iconfig.mk
@echo "-----------11111111111-----------"
#######################
all:
@echo "-----------hook start-----------"
${PROG} ${MAN8} ${SCRIPTS} ${EGHOOKSCRIPTS}
@echo "-----------hook end-------------"
编译输出发现11111111111未打印出来，说明此Makefile 文件编译报错，出错文件在iconfig.mk
dhcpcd/iconfig.mk
# Nasty hack so that make clean works without configure being run
# Requires gmake4
TOP?= .
_CONFIG_MK!= test -e ${TOP}/config.mk && \
echo config.mk || echo config-null.mk
CONFIG_MK?= ${_CONFIG_MK}
include ${TOP}/${CONFIG_MK}
定位到CONFIG_MK变量为空，导致编译报错
编译验证方法
方法1
cd out/t113/evb1_auto/longan/buildroot/build/dhcpcd-7.0.3
make
方法2
rm -rf out/t113/evb1_auto/longan/buildroot/build/dhcpcd-7.0.3
./build.sh buildroot
修改方案
对比高版本的iconfig文件修改如下
# Nasty hack so that make clean works without configure being run
TOP?= .
_CONFIG_MK!= test -e ${TOP}/config.mk && \
echo config.mk || echo config-null.mk
# add start
_CONFIG_MK?= $(shell test -e ${TOP}/config.mk && \
echo config.mk || echo config-null.mk)
# add end
CONFIG_MK?= ${_CONFIG_MK}
include ${TOP}/${CONFIG_MK}
最终生成patch文件文件放入buildroot/buildroot-201902/package/dhcpcd/0001-iconfig-build-error.patch
diff --git a/iconfig.mk b/iconfig.mk
index 465e02ea..50c50340 100644
--- a/iconfig.mk
+++ b/iconfig.mk
@@ -1,7 +1,8 @@
# Nasty hack so that make clean works without configure being run
-# Requires gmake4
TOP?= .
_CONFIG_MK!= test -e ${TOP}/config.mk && \
echo config.mk || echo config-null.mk
+_CONFIG_MK?= $(shell test -e ${TOP}/config.mk && \
+ echo config.mk || echo config-null.mk)
CONFIG_MK?= ${_CONFIG_MK}
include ${TOP}/${CONFIG_MK}
