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https://github.com/ARM-software/arm-trusted-firmware.git
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c32737033c
For a couple of releases now we have officially withdrawn support for building TF-A on Windows using the native environment, relying instead on POSIX emulation layers like MSYS2, Mingw64, Cygwin or WSL. This change removes the remainder of the OS compatibility layer entirely, and migrates the build system over to explicitly relying on a POSIX environment. Change-Id: I8fb60d998162422e958009afd17eab826e3bc39b Signed-off-by: Chris Kay <chris.kay@arm.com>
143 lines
3 KiB
Makefile
143 lines
3 KiB
Makefile
#
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# Copyright (c) 2024-2025, 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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space :=
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space := $(space) $(space)
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comma := ,
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null := <20>
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compat-path = $(subst $(space),$(null),$(1))
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decompat-path = $(subst $(null), ,$(1))
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absolute-path = $(call decompat-path,$(abspath $(call compat-path,$(1))))
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real-path = $(call decompat-path,$(realpath $(call compat-path,$(1))))
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file-name = $(call decompat-path,$(notdir $(call compat-path,$(1))))
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directory-name = $(call decompat-path,$(dir $(call compat-path,$(1))))
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escape-shell = '$(subst ','\'',$(1))'
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#
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# The grouped-target symbol. Grouped targets are not supported on versions of
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# GNU Make <= 4.2, which was most recently packaged with Ubuntu 20.04.
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#
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& := $(if $(filter grouped-target,$(.FEATURES)),&)
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#
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# Upper-case a string value.
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#
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# Parameters:
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#
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# - $(1): The string to upper-case.
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#
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# Example usage:
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#
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# $(call uppercase,HeLlO wOrLd) # "HELLO WORLD"
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#
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uppercase = $(shell echo $(call escape-shell,$(1)) | tr '[:lower:]' '[:upper:]')
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#
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# Lower-case a string value.
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#
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# Parameters:
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#
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# - $(1): The string to lower-case.
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#
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# Example usage:
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#
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# $(call lowercase,HeLlO wOrLd) # "hello world"
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#
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lowercase = $(shell echo $(call escape-shell,$(1)) | tr '[:upper:]' '[:lower:]')
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#
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# Determine the "truthiness" of a value.
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#
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# Parameters:
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#
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# - $(1): The value to determine the truthiness of.
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#
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# A value is considered to be falsy if it is:
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#
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# - empty, or
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# - equal to "0", "N", "NO", "F" or "FALSE" after upper-casing.
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#
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# If the value is truthy then the value is returned as-is, otherwise no value
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# is returned.
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#
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# Example usage:
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#
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# truthy := y
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# truthy-bool := $(call bool,$(truthy)) # "y"
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#
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# falsy := n
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# falsy-bool := $(call bool,$(falsy)) # <empty>
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#
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bool = $(filter-out 0 n no f false,$(call lowercase,$(1)))
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#
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# Determine the "truthiness" of a value, returning 0 or 1.
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#
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# Parameters:
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#
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# - $(1): The value to determine the truthiness of.
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#
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# A value is considered to be falsy if it is:
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#
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# - empty, or
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# - equal to "0", "N", "NO", "F" or "FALSE" after upper-casing.
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#
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# If the value is truthy then the value is returned as-is, otherwise no value
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# is returned.
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#
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# Example usage:
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#
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# truthy := y
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# truthy-bool := $(call bool,$(truthy)) # "1"
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#
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# falsy := n
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# falsy-bool := $(call bool,$(falsy)) # "0"
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#
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bool-01 = $(if $(call bool,$(1)),1,0)
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#
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# Determine whether a variable is defined or not.
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#
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# Parameters:
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#
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# - $(1): The variable to check.
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#
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# Example usage:
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#
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# xyz-defined := $(call defined,xyz) # <empty>
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#
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# xyz :=
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# xyz-defined := $(call defined,xyz) # <non-empty>
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#
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# xyz := hello
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# xyz-defined := $(call defined,xyz) # <non-empty>
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#
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defined = $(call bool,$(filter-out undefined,$(origin $(1))))
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#
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# Determine the path to a program.
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#
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# Parameters:
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#
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# - $(1): The program to search for.
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#
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# Example usage:
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#
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# path-to-gcc := $(call which,gcc) # "/usr/bin/gcc"
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#
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which = $(shell command -v $(call escape-shell,$(1)) 2>/dev/null)
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