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2477bef
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arch
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certs
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drivers
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include
init
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atomic
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adjust_autoksyms.sh
asn1_compiler.c
bin2c.c
bloat-o-meter
bootgraph.pl
bpf_helpers_doc.py
cc-can-link.sh
check_extable.sh
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checkkconfigsymbols.py
checkpatch.pl
checkstack.pl
checksyscalls.sh
checkversion.pl
clang-version.sh
cleanfile
cleanpatch
coccicheck
config
conmakehash.c
const_structs.checkpatch
decode_stacktrace.sh
decodecode
depmod.sh
diffconfig
documentation-file-ref-check
export_report.pl
extract-cert.c
extract-ikconfig
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
extract_xc3028.pl
faddr2line
file-size.sh
find-unused-docs.sh
gcc-goto.sh
gcc-ld
gcc-plugin.sh
gcc-version.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen_compile_commands.py
gen_ksymdeps.sh
get_abi.pl
get_dvb_firmware
get_maintainer.pl
gfp-translate
headerdep.pl
headers_check.pl
headers_install.sh
insert-sys-cert.c
jobserver-exec
kallsyms.c
kernel-doc
ld-version.sh
leaking_addresses.pl
link-vmlinux.sh
makelst
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mkcompile_h
mkmakefile
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module-common.lds
modules-check.sh
namespace.pl
nsdeps
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patch-kernel
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recordmcount.h
recordmcount.pl
setlocalversion
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sortextable.c
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spdxcheck-test.sh
spdxcheck.py
spelling.txt
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stackusage
subarch.include
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unifdef.c
ver_linux
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# SPDX-License-Identifier: GPL-2.0-only # Kconfig helper macros # Convenient variables comma := , quote := " squote := ' empty := space := $(empty) $(empty) dollar := $ right_paren := ) left_paren := ( # $(if-success,<command>,<then>,<else>) # Return <then> if <command> exits with 0, <else> otherwise. if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)") # $(success,<command>) # Return y if <command> exits with 0, n otherwise success = $(if-success,$(1),y,n) # $(failure,<command>) # Return n if <command> exits with 0, y otherwise failure = $(if-success,$(1),n,y) # $(cc-option,<flag>) # Return y if the compiler supports <flag>, n otherwise cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -S -x c /dev/null -o /dev/null) # $(ld-option,<flag>) # Return y if the linker supports <flag>, n otherwise ld-option = $(success,$(LD) -v $(1)) # check if $(CC) and $(LD) exist $(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found) $(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found) # Fail if the linker is gold as it's not capable of linking the kernel proper $(error-if,$(success, $(LD) -v | grep -q gold), gold linker '$(LD)' not supported) # gcc version including patch level gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh $(CC)) # machine bit flags # $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise. # $(m64-flag): -m64 if the compiler supports it, or an empty string otherwise. cc-option-bit = $(if-success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null,$(1)) m32-flag := $(cc-option-bit,-m32) m64-flag := $(cc-option-bit,-m64)
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