[PATCH] D85415: [Sparc] Don't use SunStyleELFSectionSwitchSyntax

[Rainer Orth via Phabricator via llvm-commits]

ro added a comment.

I've now discovered that not only the sparc assembler output requires GNU `as`, but the same is true for x86:

- `as` is invoked without `-m64`/`-m32`, thus chokes on amd64 insns since it default to 32-bit mode
- Even if adding `-Wa,-m64`, assembly fails:

  Assembler: main.c
  	"/var/tmp/main-faae1e.s", line 24 : Syntax error
  	Near line: "	.section	".note.GNU-stack","", at progbits"

- There must be no double quotes around the section name.
- Without the quotes, the section name is no valid identifier: `-` isn't allowed.
- On top of that, Solaris doesn't care about those `.note` sections: to achieve non-executable stacks, you need e.g. `ld -z sx=nxstack` (Solaris 11.4) or `ld -z nxstack` (Solaris 11.3).

However, to make `-fno-integrated-as` work on Solaris is more work than just enforcing use of `/usr/gnu/bin/as`.  I guess I'll split that off into a separate patch: the Sun style section syntax change makes the situation here neither worse nor better.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85415/new/

https://reviews.llvm.org/D85415