[coreboot-gerrit] [M] Change in coreboot[master]: arch,toolchain,xcompile: Use the compiler frontend as a linker

[Paul Menzel (Code Review)]

Attention is currently required from: Raul Rangel, Stefan Reinauer, Julius Werner, Jacob Garber, Iru Cai, Elyes Haouas.

Paul Menzel has uploaded a new patch set (#13) to the change originally created by Jacob Garber. ( https://review.coreboot.org/c/coreboot/+/40811 )

Change subject: arch,toolchain,xcompile: Use the compiler frontend as a linker
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arch,toolchain,xcompile: Use the compiler frontend as a linker

Code generation when using LTO is not done until after linking, so the
compiler must be invoked at all linking stages instead of the linker.
Replace $(LD) with $(CC), and prefix all linker-specific flags with -Wl
and replace the spaces by commas so they will be passed to the linker.

Pass CFLAGS_common to SMM targets, so `-m32` gets passed.

Change-Id: Ia551cf84c8f6eb3b010450fc572876a318a257d1
Signed-off-by: Jacob Garber 
Signed-off-by: Paul Menzel 
---
M Makefile.inc
M src/arch/arm/Makefile.inc
M src/arch/arm64/Makefile.inc
M src/arch/ppc64/Makefile.inc
M src/arch/riscv/Makefile.inc
M src/arch/x86/Makefile.inc
M src/cpu/x86/smm/Makefile.inc
M src/lib/Makefile.inc
M toolchain.inc
M util/xcompile/xcompile
10 files changed, 55 insertions(+), 37 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/40811/13