tree 9376322ba91e401b7851bea19e9241a9d0f6f5aa
parent 073dc853f4da03efb42c9462fcb93ab6d378a7a0
author Luming Wang <wlm199558@126.com> 1653815165 +0000
committer Luming Wang <wlm199558@126.com> 1653964077 +0000

scons: support --linker="mold" for gcc < 12.

Now, to use mold linker for gcc prior to version 12.1.0, you need
to manually set the LINKFLAGS_EXTRA scons variable. This is because
older gcc doesn't support "-fuse-ld=mold" option.

To make it more convenient for users, this patch adds support for
'--linker="mold"' option for older versions of gcc. A -B option will
be passed to gcc automatically if '/usr/libexec/mold' or
'/usr/local/libexec/mold' exist.

[1] https://github.com/rui314/mold
[2] https://gem5-review.googlesource.com/c/public/gem5/+/57173

Change-Id: Id1cd780d98c39fc837066d826a9ff942579748fe
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/60109
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>