[PATCH] D144617: [AVR][MC] Add ELF flag 'EF_AVR_LINKRELAX_PREPARED' to OBJ files

Thu Feb 23 17:27:47 PST 2023

benshi001 added a comment.

In D144617#4148171 <https://reviews.llvm.org/D144617#4148171>, @MaskRay wrote:

> I think we should understand what this flag does and how it affects assemblers/linkers.
> If it does not cause behavior difference, I am unsure we should add it.

This is how gnu ld perform linker relaxation for AVR
https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=bfd/elf32-avr.c;h=702719136d09acbc8c98ec49ab8129d0f33fffa8;hb=6777dece58127236db900215857f9070ad63e0bf#l2455

We can see this flag `EF_AVR_LINKRELAX_PREPARED` does affect
https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=bfd/elf32-avr.c;h=702719136d09acbc8c98ec49ab8129d0f33fffa8;hb=6777dece58127236db900215857f9070ad63e0bf#l2533

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144617/new/

https://reviews.llvm.org/D144617