How to set file permission programmatically? I've created a compiler
lazarus / 66-Unix

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Mussel · 2021-07-28 13:20

Hi, I have written a simple back-end compiler for Linux x64 using
Pascal which supports two commands only: ReadLine and WriteLine.

Now the issue is after my compiler generating the ELF64 binary
program, I do not know how to set the file permission so that it can
be allowed to execute.

In the mean time, I have to set each one manually:
Code: [Select]chmod u=rwx,g=rx,o=rx test
BTW, if anyone is interested, can try this back-end compiler, open-
source.
ELF64 binary file format is quite simple if used with only sys_read
and sys_write.

https://github.com/khanming/Pipit

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marcov · 2021-07-28 13:23

If you had searched on chmod in the manuals, you would have found:

https://www.freepascal.org/docs-html/rtl/baseunix/fpchmod.html