snehasish wrote:

> > Can we ensure that `-z,keep-data-section-prefix` gets passed to the linker 
> > too from the driver? Should it be part of this pull request?
> 
> I actually did wonder about it when making the changes; inferred from the 
> current status, it's more canonical to let users specify linker options 
> separately.
> 
> [tools::gnutools::Linker::ConstructJob](https://github.com/llvm/llvm-project/blob/1cb99036b41562b233e7bb44801202742733f5d3/clang/lib/Driver/ToolChains/Gnu.cpp#L271)
>  and its caller 
> [LinkerWrapper::ConstructJob](https://github.com/llvm/llvm-project/blob/4e44e8761795d4672121368929b9c99f6dbaffa7/clang/lib/Driver/ToolChains/Clang.cpp#L9223)
>  [1](#user-content-fn-1-26e65359c78b52e446e24e4987530693) constructs the 
> linker options, and PGO linker options like `-keep-text-section-prefix` are 
> not implied; toolchain users typically specify 
> `-Wl,-z,keep-text-section-prefix` besides `-fprofile-use` to partition text 
> sections.
> 
> ## Footnotes
> 1. While 'gnu' is in the namespace / filename, the functions get invoked when 
> compiling a binary the common way. 
> [↩](#user-content-fnref-1-26e65359c78b52e446e24e4987530693)

 Thanks for looking at it. As long as we have some documentation somewhere it 
sgtm.

https://github.com/llvm/llvm-project/pull/124991
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