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Masahiro Yamada bd55f96fa9 kbuild: refactor cc-cross-prefix implementation 
- $(word 1, <text>) is equivalent to $(firstword <text>)

 - hardcode "gcc" instead of $(CC)

 - minimize the shell script part

A little more notes in case $(filter-out -%, ...) is not clear.

arch/mips/Makefile passes prefixes depending on the configuration.

CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- \
    $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)

In the Kconfig stage (e.g. when you run 'make defconfig'), neither
CONFIG_32BIT nor CONFIG_64BIT is defined. So, $(tool-archpref) is
empty. As a result, "-linux -linux-gnu- -unknown-linux-gnu" is passed
into cc-cross-prefix. The command 'which' assumes arguments starting
with a hyphen as command options, then emits the following messages:

  Illegal option -l
  Illegal option -l
  Illegal option -u

I think it is strange to define CROSS_COMPILE depending on the CONFIG
options since you need to feed $(CC) to Kconfig, but it is how MIPS
Makefile currently works. Anyway, it would not hurt to filter-out
invalid strings beforehand.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-02-27 21:41:27 +09:00
..
basic
kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
2018-12-01 23:13:14 +09:00
coccinelle
dma-mapping: remove dma_zalloc_coherent()
2019-01-08 07:58:49 -05:00
dtc
Merge branch 'yaml-bindings-for-v4.21' into dt/next
2018-12-13 11:20:36 -06:00
gcc-plugins
gcc-plugins: arm_ssp_per_task_plugin: fix for GCC 9+
2019-01-20 14:06:40 -08:00
gdb
scripts/gdb: refactor rules for symlink creation
2019-02-27 21:41:04 +09:00
genksyms
genksyms: remove symbol prefix support
2018-05-17 22:43:35 +09:00
kconfig
kconfig: clean generated *conf-cfg files
2019-01-14 10:37:09 +09:00
ksymoops
Fix dead URLs to ftp.kernel.org
2017-03-28 16:16:52 +02:00
mod
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
2019-01-09 10:35:56 +01:00
package
kbuild: pkg: use -f $(srctree)/Makefile to recurse to top Makefile
2019-02-20 09:42:46 +09:00
selinux
genheaders: %-<width>s had been there since v6; %-*s - since v7
2018-12-10 03:40:11 -05:00
tracing
scripts: Add Python 3 support to tracing/draw_functrace.py
2018-07-29 11:08:38 +09:00
.gitignore
scripts: remove unnecessary ihex2fw and check-lc_ctypes from .gitignore
2018-12-22 00:37:52 +09:00
adjust_autoksyms.sh
kbuild: remove CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
2018-05-17 22:44:57 +09:00
asn1_compiler.c
ASN.1: Remove unnecessary shadowed local variable
2018-10-29 00:19:41 +09:00
bin2c.c
kbuild: move bin2c back to scripts/ from scripts/basic/
2018-07-18 01:18:05 +09:00
bloat-o-meter
bloat-o-meter: ignore __addressable_ symbols
2018-12-28 12:11:44 -08:00
bootgraph.pl
scripts: Switch to more portable Perl shebang
2017-05-14 11:20:44 +09:00
bpf_helpers_doc.py
bpf: change eBPF helper doc parsing script to allow for smaller indent
2018-05-17 17:34:43 +02:00
cc-can-link.sh
bpfilter: check compiler capability in Kconfig
2018-06-28 13:36:39 +09:00
check_extable.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
checkincludes.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
checkkconfigsymbols.py
checkkconfigsymbols.py: support Kconfig's 'imply' statement
2017-02-03 11:49:06 +01:00
checkpatch.pl
checkpatch: add Co-developed-by to signature tags
2019-01-04 13:13:48 -08:00
checkstack.pl
scripts/checkstack.pl: dynamic stack growth for aarch64
2018-12-28 12:11:44 -08:00
checksyscalls.sh
parisc: syscalls: ignore nfsservctl for other architectures
2018-12-10 08:26:04 +01:00
checkversion.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
clang-version.sh
kbuild: Add a space after ! to prevent parsing as file pattern
2018-08-22 23:21:40 +09:00
cleanfile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cleanpatch
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
coccicheck
coccicheck: return proper error code on fail
2018-08-14 08:58:56 +09:00
config
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
conmakehash.c
kbuild: trivial - remove trailing spaces
2014-04-30 17:34:32 +02:00
const_structs.checkpatch
const_structs.checkpatch: add frequently used from Julia Lawall's list
2016-10-11 15:06:30 -07:00
decode_stacktrace.sh
scripts/decode_stacktrace: only strip base path when a prefix of the path
2018-12-28 12:11:44 -08:00
decodecode
scripts/decodecode: set ARCH when running natively on arm/arm64
2018-12-28 12:11:44 -08:00
depmod.sh
kbuild: modules_install: warn when missing System.map file
2018-09-09 09:14:07 +09:00
diffconfig
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
documentation-file-ref-check
scripts/documentation-file-ref-check: ignore sched-pelt false positive
2018-07-02 11:25:00 -06:00
export_report.pl
scripts: Switch to more portable Perl shebang
2017-05-14 11:20:44 +09:00
extract_xc3028.pl
MAINTAINERS & files: Canonize the e-mails I use at files
2018-05-04 06:21:06 -04:00
extract-cert.c
KEYS: Remove unnecessary header #inclusions from extract-cert.c
2015-09-25 16:31:45 +01:00
extract-ikconfig
scripts/extract-ikconfig: Support LZ4-compressed images.
2015-04-15 14:01:12 +02:00
extract-module-sig.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extract-sys-certs.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extract-vmlinux
extract-vmlinux: Check for uncompressed image as fallback
2018-10-17 08:18:01 +02:00
faddr2line
scripts/faddr2line: fix location of start_kernel in comment
2018-11-18 10:15:09 -08:00
file-size.sh
kbuild: Use ls(1) instead of stat(1) to obtain file size
2018-03-26 02:01:24 +09:00
find-unused-docs.sh
scripts: Add a script to find unused documentation
2017-10-23 08:01:37 -06:00
gcc-goto.sh
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
gcc-ld
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gcc-plugin.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gcc-version.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
gcc-x86_32-has-stack-protector.sh
stack-protector: test compiler capability in Kconfig and drop AUTO mode
2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh
stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y
2018-06-25 23:21:13 +09:00
gen_compile_commands.py
scripts: add a tool to produce a compile_commands.json file
2018-12-19 23:41:36 +09:00
gen_ksymdeps.sh
kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
2018-12-01 23:13:14 +09:00
get_dvb_firmware
scripts: Switch to more portable Perl shebang
2017-05-14 11:20:44 +09:00
get_maintainer.pl
get_maintainer: allow option --mpath <directory> to read all files in <directory>
2018-08-22 10:52:48 -07:00
gfp-translate
chmod +x scripts/gfp-translate
2012-06-27 12:44:29 -07:00
headerdep.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
headers_check.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
headers_install.sh
kbuild: Improve portability of some sed invocations
2018-03-26 02:01:18 +09:00
headers.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
insert-sys-cert.c
KEYS: Reserve an extra certificate symbol for inserting without recompiling
2016-02-26 15:30:20 +00:00
kallsyms.c
kallsyms: include <asm/bitsperlong.h> instead of <asm/types.h>
2019-02-19 22:50:34 +09:00
Kbuild.include
kbuild: refactor cc-cross-prefix implementation
2019-02-27 21:41:27 +09:00
Kconfig.include
gcc-plugins: test plugin support in Kconfig and clean up Makefile
2018-06-11 09:16:22 +09:00
kernel-doc
scripts/kernel-doc: Fix struct and struct field attribute processing
2018-11-25 12:35:45 -07:00
ld-version.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
leaking_addresses.pl
leaking_addresses: check if file name contains address
2018-04-07 08:50:34 +10:00
Lindent
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
link-vmlinux.sh
kbuild: merge KBUILD_VMLINUX_{INIT,MAIN} into KBUILD_VMLINUX_OBJS
2019-01-28 09:11:17 +09:00
Makefile
scripts/gdb: do not descend into scripts/gdb from scripts
2019-02-27 21:40:09 +09:00
Makefile.asm-generic
kbuild: generate asm-generic wrappers if mandatory headers are missing
2019-01-06 09:46:51 +09:00
Makefile.build
kbuild: hardcode genksyms path and remove GENKSYMS variable
2019-02-27 21:41:26 +09:00
Makefile.clean
kbuild: remove deprecated host-progs variable
2018-08-09 21:51:17 +09:00
Makefile.dtbinst
Merge tag 'devicetree-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
2017-11-14 18:25:40 -08:00
Makefile.extrawarn
Merge tag 'kbuild-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-11-03 10:47:33 -07:00
Makefile.gcc-plugins
Merge tag 'kbuild-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-12-29 12:03:17 -08:00
Makefile.headersinst
kbuild: generate asm-generic wrappers if mandatory headers are missing
2019-01-06 09:46:51 +09:00
Makefile.host
kbuild: skip 'addtree' and 'flags' magic for external module build
2019-01-28 09:11:17 +09:00
Makefile.kasan
kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS
2018-12-28 12:11:43 -08:00
Makefile.kcov
kcov: test compiler capability in Kconfig and correct dependency
2018-06-11 09:14:08 +09:00
Makefile.lib
kbuild: remove unnecessary in-subshell execution
2019-01-28 09:11:17 +09:00
Makefile.modbuiltin
Kbuild: Makefile.modbuiltin: include auto.conf and tristate.conf mandatory
2018-08-03 00:47:00 +09:00
Makefile.modinst
kbuild: remove duplicated comments about PHONY
2018-07-06 22:04:03 +09:00
Makefile.modpost
kbuild: add real-prereqs shorthand for $(filter-out FORCE,$^)
2019-01-28 09:11:17 +09:00
Makefile.modsign
kbuild: remove duplicated comments about PHONY
2018-07-06 22:04:03 +09:00
Makefile.ubsan
lib/ubsan: remove null-pointer checks
2018-08-10 20:19:58 -07:00
makelst
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
markup_oops.pl
scripts: Switch to more portable Perl shebang
2017-05-14 11:20:44 +09:00
mkcompile_h
kbuild: remove unnecessary in-subshell execution
2019-01-28 09:11:17 +09:00
mkmakefile
kbuild: simplify command line creation in scripts/mkmakefile
2018-10-04 22:56:02 +09:00
mksysmap
mksysmap: Add h8300 local symbol pattern
2015-06-23 13:35:47 +09:00
mkuboot.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
module-common.lds
module: set .init_array alignment to 8
2017-03-13 09:40:28 -07:00
namespace.pl
kbuild: rename built-in.o to built-in.a
2018-03-26 02:01:19 +09:00
objdiff
scripts: objdiff: Ignore debug info when comparing
2017-03-11 11:13:38 +09:00
parse-maintainers.pl
parse-maintainers: add ability to specify filenames
2017-11-17 16:10:01 -08:00
patch-kernel
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pnmtologo.c
kbuild: trivial - remove trailing empty lines
2014-06-10 00:04:06 +02:00
profile2linkerlist.pl
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
prune-kernel
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
recordmcount.c
scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names
2018-12-08 20:54:08 -05:00
recordmcount.h
scripts: Fixed printf format mismatch
2018-05-29 22:04:12 +09:00
recordmcount.pl
scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names
2018-12-08 20:54:08 -05:00
setlocalversion
scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks
2018-11-21 23:57:33 +09:00
show_delta
kbuild: trivial - remove trailing empty lines
2014-06-10 00:04:06 +02:00
sign-file.c
sign-file: fix build error in sign-file.c with libressl
2017-02-10 12:43:47 +11:00
sortextable.c
powerpc: Build-time sort the exception table
2016-11-14 11:11:51 +11:00
sortextable.h
scripts/sortextable: suppress warning: `relocs_size' may be used uninitialized
2014-10-14 02:18:23 +02:00
spdxcheck-test.sh
scripts: add spdxcheck.py self test
2018-12-28 12:11:44 -08:00
spdxcheck.py
scripts/spdxcheck.py: always open files in binary mode
2018-12-14 15:05:45 -08:00
spelling.txt
treewide: correct "differenciate" and "instanciate" typos
2018-08-23 18:48:43 -07:00
sphinx-pre-install
docs-rst: don't require adjustbox anymore
2017-09-08 10:02:55 -06:00
split-man.pl
MAINTAINERS & files: Canonize the e-mails I use at files
2018-05-04 06:21:06 -04:00
stackdelta
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
stackusage
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
subarch.include
selftests: add headers_install to lib.mk
2018-09-05 08:12:09 -06:00
tags.sh
scripts/tags.sh: add more declarations
2018-12-28 12:11:44 -08:00
unifdef.c
unifdef: use memcpy instead of strncpy
2018-11-30 14:45:01 -08:00
ver_linux
ver_linux: Do not check for ver_linux pattern in version function
2018-07-07 17:44:52 +02:00
xen-hypercalls.sh
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xz_wrap.sh
kbuild: Make scripts executable
2014-08-20 16:03:45 +02:00