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https://github.com/ARM-software/arm-trusted-firmware.git
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d286739716
The Yocto team has requested that we do not use Poetry from within the Makefile, as Yocto does not have network access during the build process. We want to maintain the current behaviour, so this change makes our use of Poetry contigent on it being available in the environment. Additionally, explicitly passing an empty toolchain parameter now allows a tool to be *disabled* (e.g. passing `POETRY=` will prevent the build system from trying to use Poetry). Change-Id: Ibf552a3fee1eaadee767a1b948b559700083b401 Signed-off-by: Chris Kay <chris.kay@arm.com>
122 lines
2.5 KiB
Makefile
122 lines
2.5 KiB
Makefile
#
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# Copyright (c) 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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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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# 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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