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Allow deeper platform port directory structure

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Update the top level makefile to allow platform ports to exist in
subdirectories at any level instead of one level under `plat/`. The
makefile recursively searches for all files called `platform.mk` in
all subdirectories of `plat/`. The directory containing
`platform.mk` is the platform name. Platform names must be unique
across the codebase.

Replace usage of HELP_PLATFORMS in the Makefile with PLATFORMS since
these are both used to report the same information back to the user.

Update the TSP and cert_create tool makefiles in a similar way
to support a deeper platform port directory structure.

Also add PLAT_<plat_name> as a define passed through the top level
makefile to the source files, to allow build time variation in common
platform code.

Change-Id: I213420164808c5ddb99a26144e8e3f141a7417b7
This commit is contained in:
Dan Handley 2015-03-27 17:44:35 +00:00
parent d3b638cb4a
commit c04d2606f6
3 changed files with 25 additions and 10 deletions
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23
Makefile
View file

@ -1,5 +1,5 @@
#
# Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
# Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
@ -126,9 +126,14 @@ BL_COMMON_SOURCES := common/bl_common.c \
BUILD_BASE := ./build
BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
PLATFORMS := $(shell ls -I common plat/)
PLAT_MAKEFILE := platform.mk
# Generate the platforms list by recursively searching for all directories
# under /plat containing a PLAT_MAKEFILE. Append each platform with a `|`
# char and strip out the final '|'.
PLATFORMS := $(shell find plat/ -name '${PLAT_MAKEFILE}' -print0 | \
sed -r 's%[^\x00]*\/([^/]*)\/${PLAT_MAKEFILE}\x00%\1|%g' | \
sed -r 's/\|$$//')
SPDS := $(shell ls -I none services/spd)
HELP_PLATFORMS := $(shell echo ${PLATFORMS} | sed 's/ /|/g')
# Convenience function for adding build definitions
# $(eval $(call add_define,FOO)) will have:
@ -144,9 +149,10 @@ $(and $(patsubst 0,,$(value $(1))),$(patsubst 1,,$(value $(1))),$(error $(1) mus
endef
ifeq (${PLAT},)
$(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.")
$(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform")
endif
ifeq ($(findstring ${PLAT},${PLATFORMS}),)
PLAT_MAKEFILE_FULL := $(shell find plat/ -wholename '*/${PLAT}/${PLAT_MAKEFILE}')
ifeq ($(PLAT_MAKEFILE_FULL),)
$(error "Error: Invalid platform. The following platforms are available: ${PLATFORMS}")
endif
@ -155,7 +161,7 @@ all: msg_start
msg_start:
@echo "Building ${PLAT}"
include plat/${PLAT}/platform.mk
include ${PLAT_MAKEFILE_FULL}
# Include the CPU specific operations makefile. By default all CPU errata
# workarounds and CPU specifc optimisations are disabled. This can be
@ -225,6 +231,9 @@ CFLAGS += -g
ASFLAGS += -g -Wa,--gdwarf-2
endif
# Process PLAT flag
$(eval $(call add_define,PLAT_${PLAT}))
# Process NS_TIMER_SWITCH flag
$(eval $(call assert_boolean,NS_TIMER_SWITCH))
$(eval $(call add_define,NS_TIMER_SWITCH))
@ -633,7 +642,7 @@ cscope:
${Q}cscope -b -q -k
help:
@echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> [OPTIONS] [TARGET]"
@echo "usage: ${MAKE} PLAT=<${PLATFORMS}> [OPTIONS] [TARGET]"
@echo ""
@echo "PLAT is used to specify which platform you wish to build."
@echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"

2
bl32/tsp/tsp.mk
View file

@ -52,7 +52,7 @@ $(eval $(call add_define,TSP_INIT_ASYNC))
# Include the platform-specific TSP Makefile
# If no platform-specific TSP Makefile exists, it means TSP is not supported
# on this platform.
TSP_PLAT_MAKEFILE := plat/${PLAT}/tsp/tsp-${PLAT}.mk
TSP_PLAT_MAKEFILE := $(shell find plat/ -wholename '*/${PLAT}/tsp/tsp-${PLAT}.mk')
ifeq (,$(wildcard ${TSP_PLAT_MAKEFILE}))
$(error TSP is not supported on platform ${PLAT})
else

10
tools/cert_create/Makefile
View file

@ -47,7 +47,13 @@ CFLAGS := -Wall -std=c99
# Check the platform
ifeq (${PLAT},none)
$(error Error: No platform defined. Use PLAT=<platform>.)
$(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform")
endif
PLAT_MAKEFILE := platform.mk
PLAT_INCLUDE := $(shell find ../../plat/ -wholename '*/${PLAT}/${PLAT_MAKEFILE}' | \
sed 's/${PLAT_MAKEFILE}/include/')
ifeq ($(PLAT_INCLUDE),)
$(error "Error: Invalid platform '${PLAT}'")
endif
ifeq (${DEBUG},1)
@ -63,7 +69,7 @@ endif
# Make soft links and include from local directory otherwise wrong headers
# could get pulled in from firmware tree.
INC_DIR := -I ./include -I ../../plat/${PLAT}/include
INC_DIR := -I ./include -I ${PLAT_INCLUDE}
LIB_DIR :=
LIB := -lssl -lcrypto