1 files changed, 99 insertions, 0 deletions
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c9bf912
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,99 @@
+SHELL = /bin/bash
+
+# It can happen that a makefile calls us, which contains an 'export' directive
+# or the '.EXPORT_ALL_VARIABLES:' special target. In this case, all the make
+# variables are added to the environment for each line of the recipes, so that
+# any sub-makefile can use them.
+# We have observed this can cause issues such as 'Argument list too long'
+# errors as the shell runs out of memory.
+# Since this Makefile won't call any sub-makefiles, and since the commands do
+# not expect to implicitely obtain any make variable from the environment, we
+# can safely cancel this export mechanism. Unfortunately, it can't be done
+# globally, only by name. Let's unexport MAKEFILE_LIST which is by far the
+# biggest one due to our way of tracking dependencies and compile flags
+# (we include many *.cmd and *.d files).
+unexport MAKEFILE_LIST
+
+.PHONY: all
+all:
+
+.PHONY: mem_usage
+mem_usage:
+
+# log and load eventual tee config file
+# path is absolute or relative to current source root directory.
+ifdef CFG_OPTEE_CONFIG
+$(info Loading OPTEE configuration file $(CFG_OPTEE_CONFIG))
+include $(CFG_OPTEE_CONFIG)
+endif
+
+# If $(PLATFORM) is defined and contains a hyphen, parse it as
+# $(PLATFORM)-$(PLATFORM_FLAVOR) for convenience
+ifneq (,$(findstring -,$(PLATFORM)))
+ops := $(join PLATFORM PLATFORM_FLAVOR,$(addprefix =,$(subst -, ,$(PLATFORM))))
+$(foreach op,$(ops),$(eval override $(op)))
+endif
+
+# Make these default for now
+ARCH            ?= arm
+PLATFORM        ?= vexpress
+# Default value for PLATFORM_FLAVOR is set in plat-$(PLATFORM)/conf.mk
+ifeq ($O,)
+O               := out
+out-dir         := $(O)/$(ARCH)-plat-$(PLATFORM)
+else
+out-dir         := $(O)
+endif
+
+arch_$(ARCH)	:= y
+
+ifneq ($V,1)
+q := @
+cmd-echo := true
+cmd-echo-silent := echo
+else
+q :=
+cmd-echo := echo
+cmd-echo-silent := true
+endif
+
+ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
+ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
+cmd-echo-silent := true
+endif
+else                                    # make-3.8x
+ifneq ($(findstring s, $(MAKEFLAGS)),)
+cmd-echo-silent := true
+endif
+endif
+
+
+include core/core.mk
+
+# Platform config is supposed to assign the targets
+ta-targets ?= user_ta
+
+ifeq ($(CFG_WITH_USER_TA),y)
+define build-ta-target
+ta-target := $(1)
+include ta/ta.mk
+endef
+$(foreach t, $(ta-targets), $(eval $(call build-ta-target, $(t))))
+endif
+
+include mk/cleandirs.mk
+
+.PHONY: clean
+clean:
+	@$(cmd-echo-silent) '  CLEAN   $(out-dir)'
+	${q}rm -f $(cleanfiles)
+	${q}dirs="$(call cleandirs-for-rmdir)"; if [ "$$dirs" ]; then $(RMDIR) $$dirs; fi
+	@if [ "$(out-dir)" != "$(O)" ]; then $(cmd-echo-silent) '  CLEAN   $(O)'; fi
+	${q}if [ -d "$(O)" ]; then $(RMDIR) $(O); fi
+
+.PHONY: cscope
+cscope:
+	@echo '  CSCOPE  .'
+	${q}rm -f cscope.*
+	${q}find $(PWD) -name "*.[chSs]" > cscope.files
+	${q}cscope -b -q -k