wxa | Chat library

They're not really "access rights", but rather "what kind of sections may be placed here".

From the GNU LD documentation (with some formatting mangled in the process of quotint :

The attr string must consist only of the following characters:

• ‘R’
  Read-only section
• ‘W’
  Read/write section
• ‘X’
  Executable section
• ‘A’
  Allocatable section
• ‘I’
  Initialized section
• ‘L’
  Same as ‘I’
• ‘!’
  Invert the sense of any of the attributes that follow

If an unmapped section matches any of the listed attributes other than ‘!’, it will be placed in the memory region. The ‘!’ attribute reverses the test for the characters that follow, so that an unmapped section will be placed in the memory region only if it does not match any of the attributes listed afterwards. Thus an attribute string of ‘RW!X’ will match any unmapped section that has either or both of the ‘R’ and ‘W’ attributes, but only as long as the section does not also have the ‘X’ attribute.

With that background, I would interpret your config as follows:

Check this and see if it works for you ... the main worker here is resize, and setting refcheck to False, since we are not sharing the memory with another array

I think this might be a bug in LLVM. In LinkerScript.cpp we have:

You are getting an error because q is an array and not an object with b property. And you did not add the initial value.

You can concat and map