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

[Elyes Haouas (Code Review)]

Attention is currently required from: Iru Cai, Jacob Garber, Julius Werner, Paul Menzel, Raul Rangel.

Elyes Haouas has uploaded a new patch set (#17) to the change originally created by Jacob Garber. ( https://review.coreboot.org/c/coreboot/+/40811?usp=email )

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, results in

clang: error: argument unused during compilation: '-nostdinc' [-Werror,-Wunused-command-line-argument]

Pass CFLAGS_smm and CFLAGS_smmstub.

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, 37 insertions(+), 37 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/40811/17