arm-trusted-firmware/make_helpers/unix.mk
Chris Kay f4dd18c270 build: consolidate directory creation rules
This commit streamlines directory creation by introducing a single
pattern rule to automatically make directories for which there is a
dependency.

We currently use several macros to generate rules to create directories
upon dependence, which is a significant amount of code and a lot of
redundancy. The rule introduced by this change represents a catch-all:
any rule dependency on a path ending in a forward slash is automatically
created.

Now, rules can rely on an unordered dependency (`|`) on `$$(@D)/` which,
when secondary expansion is enabled, expands to the directory of the
target being built, e.g.:

    build/main.o: main.c | $$(@D)/ # automatically creates `build/`

Change-Id: I7e554efa2ac850e779bb302fd9c7fbb239886c9f
Signed-off-by: Chris Kay <chris.kay@arm.com>
2024-07-22 09:41:30 +00:00

48 lines
1.1 KiB
Makefile

#
# Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
# Trusted Firmware shell command definitions for a Unix style environment.
ifndef UNIX_MK
UNIX_MK := $(lastword $(MAKEFILE_LIST))
DIR_DELIM := /
PATH_SEP := :
# These defines provide Unix style equivalents of the shell commands
# required by the Trusted Firmware build environment.
# ${1} is the file to be copied.
# ${2} is the destination file name.
define SHELL_COPY
$(q)cp -f "${1}" "${2}"
endef
# ${1} is the directory to be copied.
# ${2} is the destination directory path.
define SHELL_COPY_TREE
$(q)cp -rf "${1}" "${2}"
endef
# ${1} is the file to be deleted.
define SHELL_DELETE
-$(q)rm -f "${1}"
endef
# ${1} is a space delimited list of files to be deleted.
# Note that we do not quote ${1}, as multiple parameters may be passed.
define SHELL_DELETE_ALL
-$(q)rm -rf ${1}
endef
define SHELL_REMOVE_DIR
-$(q)rm -rf "${1}"
endef
nul := /dev/null
which = $(shell command -v $(call escape-shell,$(1)) 2>$(nul))
endif