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https://github.com/torvalds/linux.git
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Miguel Ojeda
2f7ab1267d
Having most of the new files in place, we now enable Rust support in the build system, including `Kconfig` entries related to Rust, the Rust configuration printer and a few other bits. Reviewed-by: Kees Cook <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Tested-by: Nick Desaulniers <[email protected]> Reviewed-by: Greg Kroah-Hartman <[email protected]> Co-developed-by: Alex Gaynor <[email protected]> Signed-off-by: Alex Gaynor <[email protected]> Co-developed-by: Finn Behrens <[email protected]> Signed-off-by: Finn Behrens <[email protected]> Co-developed-by: Adam Bratschi-Kaye <[email protected]> Signed-off-by: Adam Bratschi-Kaye <[email protected]> Co-developed-by: Wedson Almeida Filho <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Co-developed-by: Michael Ellerman <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Co-developed-by: Sven Van Asbroeck <[email protected]> Signed-off-by: Sven Van Asbroeck <[email protected]> Co-developed-by: Gary Guo <[email protected]> Signed-off-by: Gary Guo <[email protected]> Co-developed-by: Boris-Chengbiao Zhou <[email protected]> Signed-off-by: Boris-Chengbiao Zhou <[email protected]> Co-developed-by: Boqun Feng <[email protected]> Signed-off-by: Boqun Feng <[email protected]> Co-developed-by: Douglas Su <[email protected]> Signed-off-by: Douglas Su <[email protected]> Co-developed-by: Dariusz Sosnowski <[email protected]> Signed-off-by: Dariusz Sosnowski <[email protected]> Co-developed-by: Antonio Terceiro <[email protected]> Signed-off-by: Antonio Terceiro <[email protected]> Co-developed-by: Daniel Xu <[email protected]> Signed-off-by: Daniel Xu <[email protected]> Co-developed-by: Björn Roy Baron <[email protected]> Signed-off-by: Björn Roy Baron <[email protected]> Co-developed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]>
66 lines
2.6 KiB
Plaintext
66 lines
2.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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# Kconfig helper macros
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# Convenient variables
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comma := ,
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quote := "
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squote := '
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empty :=
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space := $(empty) $(empty)
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dollar := $
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right_paren := )
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left_paren := (
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# $(if-success,<command>,<then>,<else>)
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# Return <then> if <command> exits with 0, <else> otherwise.
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if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
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# $(success,<command>)
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# Return y if <command> exits with 0, n otherwise
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success = $(if-success,$(1),y,n)
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# $(failure,<command>)
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# Return n if <command> exits with 0, y otherwise
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failure = $(if-success,$(1),n,y)
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# $(cc-option,<flag>)
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# Return y if the compiler supports <flag>, n otherwise
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cc-option = $(success,trap "rm -rf .tmp_$$" EXIT; mkdir .tmp_$$; $(CC) -Werror $(CLANG_FLAGS) $(1) -c -x c /dev/null -o .tmp_$$/tmp.o)
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# $(ld-option,<flag>)
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# Return y if the linker supports <flag>, n otherwise
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ld-option = $(success,$(LD) -v $(1))
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# $(as-instr,<instr>)
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# Return y if the assembler supports <instr>, n otherwise
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as-instr = $(success,printf "%b\n" "$(1)" | $(CC) $(CLANG_FLAGS) -c -x assembler -o /dev/null -)
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# check if $(CC) and $(LD) exist
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$(error-if,$(failure,command -v $(CC)),C compiler '$(CC)' not found)
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$(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found)
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# Get the C compiler name, version, and error out if it is not supported.
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cc-info := $(shell,$(srctree)/scripts/cc-version.sh $(CC))
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$(error-if,$(success,test -z "$(cc-info)"),Sorry$(comma) this C compiler is not supported.)
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cc-name := $(shell,set -- $(cc-info) && echo $1)
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cc-version := $(shell,set -- $(cc-info) && echo $2)
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# Get the assembler name, version, and error out if it is not supported.
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as-info := $(shell,$(srctree)/scripts/as-version.sh $(CC) $(CLANG_FLAGS))
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$(error-if,$(success,test -z "$(as-info)"),Sorry$(comma) this assembler is not supported.)
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as-name := $(shell,set -- $(as-info) && echo $1)
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as-version := $(shell,set -- $(as-info) && echo $2)
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# Get the linker name, version, and error out if it is not supported.
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ld-info := $(shell,$(srctree)/scripts/ld-version.sh $(LD))
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$(error-if,$(success,test -z "$(ld-info)"),Sorry$(comma) this linker is not supported.)
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ld-name := $(shell,set -- $(ld-info) && echo $1)
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ld-version := $(shell,set -- $(ld-info) && echo $2)
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# machine bit flags
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# $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise.
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# $(m64-flag): -m64 if the compiler supports it, or an empty string otherwise.
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cc-option-bit = $(if-success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null,$(1))
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m32-flag := $(cc-option-bit,-m32)
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m64-flag := $(cc-option-bit,-m64)
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