O'Reilly logo

Solaris™ Internals: Core Kernel Components by Richard McDougall, Jim Mauro

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

5.3. Virtual Address Spaces

The virtual address space of a process is the range of memory addresses that are presented to the process as its environment; some addresses are mapped to physical memory, some are not. A process's virtual address space skeleton is created by the kernel at the time the fork() system call creates the process. (See “Process Creation”.) The virtual address layout within a process is set up by the dynamic linker and sometimes varies across different hardware platforms. As we saw in Figure 5.1, virtual address spaces are assembled from a series of memory segments. Each process has at least four segments:

  • Executable text — The executable instructions in the binary reside in the text segment. The text segment is mapped from ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required