[coreboot-gerrit] Change in coreboot[master]: payloads: Force sub-make runs for in-tree payloads

[Nico Huber (Code Review)]

Nico Huber has submitted this change. ( https://review.coreboot.org/c/coreboot/+/47638 )

Change subject: payloads: Force sub-make runs for in-tree payloads
......................................................................

payloads: Force sub-make runs for in-tree payloads

The sub-process calls break make's dependency tracking, hence we have
to always perform the calls if we want to allow automatic, incremental
builds.

We let each rule depend on a new, phony target `force-payload`. It has
roughly the same effect as tagging all the targets as phony, but doing
so would feel wrong as some of them are actual files.

Change-Id: I1bc2406db371e8dddbfdf71f68a6665a5b558f5e
Signed-off-by: Nico Huber 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47638
Tested-by: build bot (Jenkins) 
Reviewed-by: Angel Pons 
---
M payloads/Makefile.inc
1 file changed, 6 insertions(+), 3 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Angel Pons: Looks good to me, approved

diff --git a/payloads/Makefile.inc b/payloads/Makefile.inc
index ec42143..d89b5ba 100644
--- a/payloads/Makefile.inc
+++ b/payloads/Makefile.inc
@@ -29,12 +29,14 @@
 payloads/external/LinuxBoot \
 payloads/external/Yabits \

+force-payload:
+
 payloads/coreinfo/build/coreinfo.elf coreinfo: export CCACHE := $(CCACHE)
-payloads/coreinfo/build/coreinfo.elf coreinfo:
+payloads/coreinfo/build/coreinfo.elf coreinfo: force-payload
    $(MAKE) -C payloads/coreinfo defaultbuild

payloads/nvramcui/build/nvramcui.elf nvramcui: export CCACHE := $(CCACHE)
-payloads/nvramcui/build/nvramcui.elf nvramcui:
+payloads/nvramcui/build/nvramcui.elf nvramcui: force-payload
    $(MAKE) -C payloads/nvramcui

clean-payloads:
@@ -46,4 +48,5 @@
 print-repo-info-payloads:
    -$(foreach payload, $(PAYLOADS_LIST), $(MAKE) -C $(payload) print-repo-info 2>/dev/null; )

-.PHONY: clean-payloads distclean-payloads print-repo-info-payloads nvramcui coreinfo
+.PHONY: force-payload coreinfo nvramcui
+.PHONY: clean-payloads distclean-payloads print-repo-info-payloads