[coreboot-gerrit] Change in coreboot[master]: arch/x86: Don't use .bss from car.ld if not running XIP

[Arthur Heymans (Code Review)]

Attention is currently required from: Furquan Shaikh, Kyösti Mälkki.
Hello build bot (Jenkins), Furquan Shaikh, Marshall Dawson, Julius Werner,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/48156

to look at the new patch set (#3).

Change subject: arch/x86: Don't use .bss from car.ld if not running XIP
......................................................................

arch/x86: Don't use .bss from car.ld if not running XIP

Some platform run early stages like romstage and verstage from CAR
instead of XIP. This allows to link them like other arch inside the
_program region. This make in place LZ4 decompression possible as it
needs a bit of extra place to extract the code which is now provided by
the .bss.

Tested on up/squared (Intel APL) & google/vilboz (AMD Picasso).

Change-Id: I6cf51f943dde5f642d75ba4c5d3be520dc56370a
Signed-off-by: Arthur Heymans 
---
M src/arch/x86/assembly_entry.S
M src/arch/x86/car.ld
M src/include/rules.h
M src/lib/program.ld
4 files changed, 10 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/48156/3