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https://github.com/ARM-software/arm-trusted-firmware.git
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f4dd18c270
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>
67 lines
2.5 KiB
Makefile
67 lines
2.5 KiB
Makefile
#
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# Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# This file contains the logic to identify and include any relevant
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# build environment specific make include files.
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ifndef BUILD_ENV_MK
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BUILD_ENV_MK := $(lastword $(MAKEFILE_LIST))
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# Block possible built-in command definitions that are not fully portable.
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# This traps occurences that need replacing with our OS portable macros
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COPY := $$(error "Replace COPY with call to SHELL_COPY or SHELL_COPY_TREE.")
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CP := $$(error "Replace CP with call to SHELL_COPY or SHELL_COPY_TREE.")
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DEL := $$(error "Replace DEL with call to SHELL_DELETE.")
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RD := $$(error "Replace RD with call to SHELL_REMOVE_DIR.")
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RM := $$(error "Replace RM with call to SHELL_DELETE.")
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RMDIR := $$(error "Replace RMDIR with call to SHELL_REMOVE_DIR.")
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ENV_FILE_TO_INCLUDE := unix.mk
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ifdef OSTYPE
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ifneq ($(findstring ${OSTYPE}, cygwin),)
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ENV_FILE_TO_INCLUDE := cygwin.mk
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else
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ifneq ($(findstring ${OSTYPE}, MINGW32 mingw msys),)
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ENV_FILE_TO_INCLUDE := msys.mk
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endif
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endif
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else
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ifdef MSYSTEM
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# Although the MINGW MSYS shell sets OSTYPE as msys in its environment,
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# it does not appear in the GNU make view of environment variables.
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# We use MSYSTEM as an alternative, as that is seen by make
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ifneq ($(findstring ${MSYSTEM}, MINGW32 mingw msys),)
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OSTYPE ?= msys
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ENV_FILE_TO_INCLUDE := msys.mk
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endif
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else
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ifdef OS
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ifneq ($(findstring ${OS}, Windows_NT),)
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ENV_FILE_TO_INCLUDE := windows.mk
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endif
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endif
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endif
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endif
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include $(dir $(lastword $(MAKEFILE_LIST)))${ENV_FILE_TO_INCLUDE}
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ENV_FILE_TO_INCLUDE :=
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ifndef SHELL_COPY
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$(error "SHELL_COPY not defined for build environment.")
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endif
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ifndef SHELL_COPY_TREE
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$(error "SHELL_COPY_TREE not defined for build environment.")
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endif
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ifndef SHELL_DELETE_ALL
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$(error "SHELL_DELETE_ALL not defined for build environment.")
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endif
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ifndef SHELL_DELETE
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$(error "SHELL_DELETE not defined for build environment.")
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endif
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ifndef SHELL_REMOVE_DIR
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$(error "SHELL_REMOVE_DIR not defined for build environment.")
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endif
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endif
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