红帽子企业版 7.3 INSTALL SYSTEMTAP

[root@workstation2017 ~]# uname -r

1.安装程序

yum install systemtap systemtap-runtime

// 这个会被安装 systemtap-sdt-devel-3.0-7.el7.x86_64

2. //安装内核调试符号

自动安装

stap-prep://安装内核调试符号

kernel-debuginfo-common-`name -r`

kernel-debuginfo-`uname -r`

kernel-devel-`uname -r`

手动下载安装

kernel-debuginfo-common-`name -r`

kernel-debuginfo-`uname -r`

kernel-devel-`uname -r`

linux 内核源代码位置

[root@workstation2017 linux-3.10.0-514.el7.x86_64]# pwd

/usr/src/debug/kernel-3.10.0-514.el7/linux-3.10.0-514.el7.x86_64

测试：

[root@workstation2017 ~]# stap -v -e 'probe vfs.read {printf("read performed "); exit()}'

[root@workstation2017 ~]# stap -v -e 'probe vfs.read.return {printf("read performed "); exit()}'

[root@workstation2017 ~]# stap -L 'kernel.function("sys_open")'
kernel.function("SyS_open@fs/open.c:1041") $filename:long int $flags:long int $mode:long int

支持用护级别调试