Star64_linux/scripts
Javier Martinez Canillas ff2e6efda0 kbuild: Quote OBJCOPY var to avoid a pahole call break the build
The ccache tool can be used to speed up cross-compilation, by calling the
compiler and binutils through ccache. For example, following should work:

    $ export ARCH=arm64 CROSS_COMPILE="ccache aarch64-linux-gnu-"

    $ make M=drivers/gpu/drm/rockchip/

but pahole fails to extract the BTF info from DWARF, breaking the build:

      CC [M]  drivers/gpu/drm/rockchip//rockchipdrm.mod.o
      LD [M]  drivers/gpu/drm/rockchip//rockchipdrm.ko
      BTF [M] drivers/gpu/drm/rockchip//rockchipdrm.ko
    aarch64-linux-gnu-objcopy: invalid option -- 'J'
    Usage: aarch64-linux-gnu-objcopy [option(s)] in-file [out-file]
     Copies a binary file, possibly transforming it in the process
    ...
    make[1]: *** [scripts/Makefile.modpost:156: __modpost] Error 2
    make: *** [Makefile:1866: modules] Error 2

this fails because OBJCOPY is set to "ccache aarch64-linux-gnu-copy" and
later pahole is executed with the following command line:

    LLVM_OBJCOPY=$(OBJCOPY) $(PAHOLE) -J --btf_base vmlinux $@

which gets expanded to:

    LLVM_OBJCOPY=ccache aarch64-linux-gnu-objcopy pahole -J ...

instead of:

    LLVM_OBJCOPY="ccache aarch64-linux-gnu-objcopy" pahole -J ...

Fixes: 5f9ae91f7c ("kbuild: Build kernel module BTFs if BTF is enabled and pahole supports it")
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/bpf/20210526215228.3729875-1-javierm@redhat.com
2021-05-27 11:32:56 -07:00
..
atomic
basic .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
clang-tools
coccinelle
dtc .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
dummy-tools kbuild: dummy-tools: adjust to stricter stackprotector check 2021-05-17 12:10:03 +09:00
gcc-plugins .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
gdb scripts/gdb: add lx_current support for arm64 2021-05-07 00:26:33 -07:00
genksyms .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
kconfig Kconfig updates for v5.13 2021-04-29 14:32:00 -07:00
ksymoops
mod .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
package
selinux
tracing
.gitignore .gitignore: prefix local generated files with a slash 2021-05-02 00:43:35 +09:00
adjust_autoksyms.sh
as-version.sh
asn1_compiler.c
bin2c.c
bloat-o-meter
bootgraph.pl
bpf_doc.py
cc-can-link.sh
cc-version.sh
check-sysctl-docs
check_extable.sh
checkdeclares.pl scripts: a new script for checking duplicate struct declaration 2021-04-30 11:20:35 -07:00
checkincludes.pl
checkkconfigsymbols.py
checkpatch.pl checkpatch: improve ALLOC_ARRAY_ARGS test 2021-05-06 19:24:13 -07:00
checkstack.pl
checksyscalls.sh
checkversion.pl
cleanfile
cleanpatch
coccicheck
config
const_structs.checkpatch
decode_stacktrace.sh
decodecode
depmod.sh
dev-needs.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-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen_autoksyms.sh
gen_ksymdeps.sh
generate_initcall_order.pl
get_abi.pl
get_dvb_firmware
get_feat.pl
get_maintainer.pl
gfp-translate
headerdep.pl
headers_check.pl
headers_install.sh
insert-sys-cert.c
jobserver-exec scripts/jobserver-exec: Fix a typo ("envirnoment") 2021-05-17 12:10:03 +09:00
kallsyms.c
Kbuild.include
Kconfig.include
kernel-doc
ld-version.sh
leaking_addresses.pl
Lindent
link-vmlinux.sh kbuild: Quote OBJCOPY var to avoid a pahole call break the build 2021-05-27 11:32:56 -07:00
Makefile
Makefile.asm-generic
Makefile.build kbuild: refactor fdtoverlay rule 2021-05-06 02:14:38 +09:00
Makefile.clean
Makefile.compiler
Makefile.dtbinst
Makefile.extrawarn
Makefile.gcc-plugins
Makefile.headersinst
Makefile.host
Makefile.kasan
Makefile.kcov
Makefile.kcsan
Makefile.lib kbuild: refactor modname-multi by using suffix-search 2021-05-06 02:14:38 +09:00
Makefile.modfinal kbuild: Quote OBJCOPY var to avoid a pahole call break the build 2021-05-27 11:32:56 -07:00
Makefile.modinst
Makefile.modpost
Makefile.package
Makefile.ubsan
Makefile.userprogs
makelst
markup_oops.pl
min-tool-version.sh
mkcompile_h
mkmakefile
mksysmap
mkuboot.sh
module.lds.S
modules-check.sh
nsdeps kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
objdiff
parse-maintainers.pl
patch-kernel
profile2linkerlist.pl
prune-kernel
recordmcount.c
recordmcount.h
recordmcount.pl Kbuild updates for v5.13 (2nd) 2021-05-08 10:00:11 -07:00
remove-stale-files kbuild: add a script to remove stale generated files 2021-05-02 00:43:35 +09:00
setlocalversion kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
show_delta
sign-file.c
sorttable.c
sorttable.h
spdxcheck-test.sh
spdxcheck.py
spelling.txt scripts/spelling.txt: add "overflw" 2021-05-07 00:26:34 -07:00
sphinx-pre-install
split-man.pl
stackdelta
stackusage
subarch.include
syscallhdr.sh
syscalltbl.sh
tags.sh kbuild: replace LANG=C with LC_ALL=C 2021-05-02 00:43:35 +09:00
tools-support-relr.sh
unifdef.c
ver_linux Removed the oprofiled version option 2021-05-03 17:23:06 -06:00
xen-hypercalls.sh
xz_wrap.sh