[PATCH] D22915: [ELF] - Linkerscript: implemented SIZEOF(section)

[George Rimar via llvm-commits]

grimar created this revision.
grimar added reviewers: ruiu, rafael.
grimar added subscribers: llvm-commits, grimar, davide, evgeny777.
Herald added a subscriber: aemerson.

SIZEOF(section)
Return the size in bytes of the named section, if that section has been allocated.

SIZEOF(section) often used in scripts. Few examples from the wild:
https://github.com/chipKIT32/pic32-Arduino-USB-Bootloader-original/blob/master/boot-linkerscript.ld
https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/gba_cart.ld

Patch implements it.

https://reviews.llvm.org/D22915

Files:
  ELF/LinkerScript.cpp
  ELF/LinkerScript.h
  ELF/OutputSections.h
  test/ELF/linkerscript/linkerscript-sizeof.s

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