Some executable files have an s in the user permissions listing instead of an x. This indicates that the executable is setuid, meaning that when you execute the program, it runs as though the file owner is the
The GRUB “root” is the filesystem where GRUB searches for kernel and RAM filesystem image files. In Figure 5-2, the GRUB root is first set to a GRUB-specific device (hd0,msdos1). Then in the following command, GRUB searches for a particular UUID on a partition. If it finds that...
1) fork () 2) connect pipes 3) look up the command 4) do redirections 5) execve () 6) If the execve failed, see if the file has executable mode set. If so, and it isn't a directory, then execute its contents as a shell script. Note that the filename hashing stuff has to ta...
*/ /* 设置elf可执行文件的特性 */ SET_PERSONALITY2(loc->elf_ex, &arch_state); if (elf_read_implies_exec(loc->elf_ex, executable_stack)) current->personality |= READ_IMPLIES_EXEC; if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) current->flags |= PF_RANDOMIZE...
int on_cpu; #ifdef CONFIG_THREAD_INFO_IN_TASK /* Current CPU: */ unsigned int cpu; #endif unsigned int wakee_flips; unsigned long wakee_flip_decay_ts; struct task_struct *last_wakee; /* * recent_used_cpu is initially set as the last CPU used by a task * that wakes affine anot...
(elf_interpreter,"/usr/lib/ld.so.1") == 0) ibcs2_interpreter = 1; //如果是iBCS2的镜像文件,则要做一些处理 SET_PERSONALITY(loc->elf_ex, ibcs2_interpreter); //打开ELF解释器,成功则返回相应的文件描述符 interpreter = open_exec(elf_interpreter); //PTR_ERR会检测错误码,判断是否成功读取 ...
Executable file formats / Emulations可执行文件格式/仿真Kernel support for ELF binariesCONFIG_BINFMT_ELF ELF是最常用的跨平台二进制文件格式,支持动态连接,支持不同的硬件平台,支持不同的操作系统.必选,除非你知道自己在做什么. Write ELF core dumps with partial segmentsCONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS ...
Linux下标准的可执行文件格式是ELF.ELF(Executable and Linking Format)是一种对象文件的格式,用于定义不同类型的对象文件(Object files)中都放了什么东西、以及都以什么样的格式去放这些东西。它自最早在 System V 系统上出现后,被UNIX世界所广泛接受,作为缺省的二进制文件格式来使用。
alias rm=’echo “Executable files are not allowed!” && exit 1’` 1. 2. 这段代码表明,只要用户试图运行“rm”命令,系统就会输出一条错误提示,告知用户不允许使用可执行文件。 此外,还可以通过Linux系统服务来实现禁用一些命令。假设我们希望禁用“su”命令,那么只需要通过修改文件“/etc/pam.d/su”,在其...
This command will create the folder and export the files there, append Conty to all exported application's name and .desktop filename, and insert Conty's path to the executable path as a prefix. In addition, it will also export all environment variables and arguments relating to Conty, such...