shipinsky的博客

readelf -h vmlinux简单介绍一下Linux中ELF格式文件http://www.elecfans.com/emb/20190402898901.html

all: bzImage || \/ bzImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE) || \/ //vmlinux展开 # vmlinux image - including updated kernel symbols vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE .

c码编译流程$(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ || \/vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ $(net-y) $(net-m) $(libs-y) $(libs-m))) || \/vmli

# The all: target is the default when no target is given on the# command line.# This allow a user to issue only 'make' to build a kernel including modules# Defaults vmlinux but it is usually overridden in the arch makefileall: vmlinuxinclude $(srctr.

.config 与 include/config/auto.config的差别:后者是前者生成的。.config => include/config/auto.config例如： 后者并过滤掉非使能的选择，例如 #CONFIG_XXX is not set CINFIG_PROC_FS = y => #define CINFIG_PROC_FS 1Linux内核构建系统之一 这个系列不错https://blog.youkuaiyun.com/u012999771/a...

编译内核会生成很多临时文件，以 o.cmd为后缀。打开看发现是编译脚本。这些文件是在scripts/makefile.build文件通过如下编译宏实现：define rule_cc_o_c $(call echo-cmd,checksrc) $(cmd_checksrc) \ $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \ $(cmd_modversions) \ $(call echo-cmd,record_mcount)

先看一下打印（使用前需要make clean）[root@cliffr linux-2.6.32]# lsarch COPYING crypto drivers fs init Kbuild lib Makefile Module.symvers README samples security tools virtblock CREDITS Documentation firmware include

源码中查看Linux内核版本https://blog.youkuaiyun.com/sweetmilkcake/article/details/82954632

Linux下的lds链接脚本详解https://www.cnblogs.com/li-hao/p/4107964.html【理论知识篇】Linux下的lds链接脚本基础https://www.docin.com/p-220079257.html

问题1：交叉编译失败Makefile:509:***warning No libdw.h found or old libdw.h found, disables dwarf support. Please install elfutils-devel/elfutils-dev解决方法：发现在Makefilel里面根据编译和链接一个测试程序来确认是否有elf相关的API。可以将小程序的c拷贝...

https://www.cnblogs.com/sky-heaven/p/6272408.html