[PATCH v2] powerpc: Fail build if using recordmcount with binutils v2.37

[Michael Ellerman]

On Tue, 30 May 2023 11:44:36 +0530, Naveen N Rao wrote:
> binutils v2.37 drops unused section symbols, which prevents recordmcount
> from capturing mcount locations in sections that have no non-weak
> symbols. This results in a build failure with a message such as:
> 	Cannot find symbol for section 12: .text.perf_callchain_kernel.
> 	kernel/events/callchain.o: failed
> 
> The change to binutils was reverted for v2.38, so this behavior is
> specific to binutils v2.37:
> https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c09c8b42021180eee9495bd50d8b35e683d3901b
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc: Fail build if using recordmcount with binutils v2.37
      https://git.kernel.org/powerpc/c/25ea739ea1d4d3de41acc4f4eb2d1a97eee0eb75

cheers