Bug 472890

Summary:	sys-devel/llvm: clang does not support -frecord-gcc-switches
Product:	Gentoo Linux	Reporter:	Rick Farina (Zero_Chaos) <zerochaos>
Component:	[OLD] Core system	Assignee:	LLVM support project <llvm>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	mgorny, newchief
Priority:	Normal
Version:	autobuilds
Hardware:	All
OS:	Linux
See Also:	http://llvm.org/bugs/show_bug.cgi?id=16291
Whiteboard:
Package list:		Runtime testing required:	---

Description Rick Farina (Zero_Chaos) gentoo-dev

2013-06-10 16:57:14 UTC

I'm using -frecord-gcc-switches with gcc to detect when CFLAGS are not being respected (as everyone should be).  Recently I started testing with clang and it seems this feature is not implemented and causes errors with our QA check

clang: clang: warning: warning: argument unused during compilation: '-frecord-gcc-switches'
argument unused during compilation: '-frecord-gcc-switches'

Comment 1 Richard Yao (RETIRED) gentoo-dev

2013-06-10 19:19:28 UTC

Documentation on this feature is available on the GCC wiki:

http://gcc.gnu.org/wiki/Record_GCC_command_line_switches_in_object_files

It should not be hard to implement. Someone just needs to sit down for a few days to do it.

Comment 2 Paul Osmialowski 2016-04-22 17:22:43 UTC

Did anyone actually attempt to implement this?!

Comment 3 Michał Górny archtester

2016-08-16 16:36:09 UTC

@zzlei, feel like attempting to do this? ;-)

Comment 4 zhanglei.april 2016-08-17 10:47:32 UTC

(In reply to Michał Górny from comment #3)
> @zzlei, feel like attempting to do this? ;-)

This seems not as trivial as my previous patches to clang. I'll take a serious look when I've got time.

Comment 5 Michał Górny archtester

2018-03-29 07:42:05 UTC

This is fully relying on someone implementing it upstream. No point in tracking it downstream.