Ubuntu下SystemTap的安装&&问题解决记录
SystemTap的安装方式：
一.直接通过apt-get安装
sudo apt-get install systemtap
二.通过安装包下载
$ sudo apt-get install build-essential $ sudo apt-get install gettext $ sudo apt-get install elfutils $ sudo apt-get install libdw-dev $ wget https://sourceware.org/systemtap/ftp/releases/systemtap-2.9.tar.gz $ tar xvzf systemtap-2.9.tar.gz $ cd systemtap-2.9 $ ./configure $ make $ sudo make install
也可以直接在网站（https://sourceware.org/systemtap/ftp/releases/）下载源码压缩包，解压后安装
验证是否安装成功（成功打印出hello systemtap！）
stap -ve 'probe begin { log("hello systemtap!") exit() }'
三.重新安装可能需要卸载之前安装的systemtap
1.apt-get安装 sudo apt-get remove systemtap 2.安装包安装 进入systemtap-2.9文件夹 make uninstall
安装过程中出现的问题：
1../configure时
configure: Running systemtap uninstalled, entirely out of the build tree, configure: is not supported.
这个问题暂时忽略掉，没解决但是暂时没发现对后续操作有什么影响
configure: error: missing elfutils development headers/libraries (install elfutils-devel, libebl-dev, libdw-dev and/or libebl-devel) ly@ly-ubuntu:~/Downloads/systemtap-4.4$ sudo apt-get install libdw-dev
2.make时，出现以下问题：
bpf-translate.cxx:37:29: fatal error: elfutils/libebl.h: No such file or directory compilation terminated. Makefile:1677: recipe for target 'stap-bpf-translate.o' failed
因为提示elfutils相关，所以一直以为是elfutils的安装问题，但是通过尝试，猜想是因为elfutils已经更新了版本，但我们安装的是2.9版本的SystemTap，复盘的时候觉得应该是重新安装到最新版本4.4的SystemTap解决了这个问题
就根据之前的步骤，下载4.4版本的SystemTap，然后安装
3.make时，编译时内存不足（系统没有交换分区, 编译过程中内存耗尽, 导致了编译中断）
g++: internal compiler error: Killed (program cc1plus) Please submit a full bug report, with preprocessed source if appropriate.
//创建分区文件
root@ubuntu:~/systemtap-3.2# sudo dd if=/dev/zero of=/swapfile bs=64M count=16 16+0 records in 16+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 3.7991 s, 283 MB/s root@ubuntu:~/systemtap-3.2#
//生成swap文件系统 root@ubuntu:~/systemtap-3.2# sudo mkswap /swapfile Setting up swapspace version 1, size = 1024 MiB (1073737728 bytes) no label, UUID=5d981976-9350-4fe8-bb06-5aac1b41c220 root@ubuntu:~/systemtap-3.2#
//激活swap文件 root@ubuntu:~/systemtap-3.2# swapon /swapfile swapon: /swapfile: insecure permissions 0644, 0600 suggested.
4.安装了4.4版本的SystemTap，./configure无误，make时换了一个错误，发现胜利曙光了
HelperSDT/_HelperSDT.c:9:20: fatal error: Python.h: No such file or directory
compilation terminated.
因为没有安装python的开发版，即Python-devel这个包
sudo apt-get install python-dev
5.安装完毕后，执行systemtap的操作报错
root@ubuntu:~# stap -e 'probe begin{printf("hello"); exit();}' /usr/local/share/systemtap/runtime/linux/access_process_vm.h:35:54: error: passing argument 6 of ‘get_user_pages’ makes pointer from integer without a cast [-Werror=int-conversion]
root@ubuntu:~# stap -e 'probe kernel.function("sys_open") {log("hello world") exit()}' In file included from /usr/share/systemtap/runtime/linux/runtime.h:204:0, from /usr/share/systemtap/runtime/runtime.h:24, from /tmp/stap5B8ZsJ/stap_46c39130569454c3b11457bdcd15b4a0_1277_src.c:25: /usr/share/systemtap/runtime/linux/access_process_vm.h: In function ‘__access_process_vm_’: /usr/share/systemtap/runtime/linux/access_process_vm.h:35:54: error: passing argument 6 of ‘get_user_pages’ makes pointer from integer without a cast [-Werror=int-conversion]
/usr/share/systemtap/runtime/linux/access_process_vm.h:35:13: error: too many arguments to function ‘get_user_pages’
这几个报错，找了很久资料，stackflow上有一个问答， 觉得应该是问题的根源：https://stackoverflow.com/questions/46047270/systemtap-error-on-ubuntu
简而言之，就是“Ubuntu的systemtap软件包当前已过期”
那么就通过选择4.4版本的systemtap即可解决
