CODEWITHSUNDEEP
taskvxworks
Sikandar
Sikandar

Reputation: 357

Do vxworks task share data region?

In vxworks is the data region shared across all the created tasks like linux threads ?. Also what about the text and code segment which I feel should be separate for each task

Upvotes: 1

Views: 1396

Answers (1)

Benoit
Benoit

Reputation: 39064

In VxWorks 5.x all of the data and text segment are shared across tasks. There is in effect, a single memory space.

Vxworks 6.x introduced Real Time Processes, which are similar to Linux processes, where the data and code segment is specific to a single process, but all tasks (threads) within a process share those segments. In VxWorks 6, you can also think of the kernel space as it's own memory space with shared data and code segments for all tasks that run in the kernel.

Upvotes: 6

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