OpenCloudOS-Kernel/scripts
Masahiro Yamada ed79c34d3c kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules
'make srcdeb-pkg' generates a source package, which you can build
later by using dpkg-buildpackage.

In older dpkg versions, 'dpkg-buildpackage --jobs=N' sets not only
DEB_BUILD_OPTIONS but also MAKEFLAGS. Hence, passing -j or --jobs
to dpkg-buildpackage was enough for kicking the parallel execution.

The behavior was changed by commit 1d0ea9b2ba3f ("dpkg-buildpackage:
Change -j, --jobs semantics to non-force mode") of dpkg project. [1]

Since then, 'dpkg-buildpackage --jobs=N' sets only DEB_BUILD_OPTIONS,
which is not parsed by the current debian/rules. To build the package
in parallel, you need to pass the alternative --jobs-force option or
set the MAKEFLAGS environment variable.

Debian policy [2] suggests the following code snippet for debian/rules.

  ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
      NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
      MAKEFLAGS += -j$(NUMJOBS)
  endif

I tweaked the code to filter out parallel=1 and passed --jobs=1 to
dpkg-buildpackage from scripts/Makefile.package. It is needed to force
'make deb-pkg' without the -j option to run in serial. Please note that
dpkg-buildpackage sets parallel=<nproc> in DEB_BUILD_OPTIONS by default
(that is, --jobs=auto is the default) and --jobs=1 is needed to restore
the serial execution. When dpkg-buildpackage is invoked from Kbuild,
the number of jobs is inherited from the top level Makefile. Passing
--jobs=1 to dpkg-buildpackage allows debian/rules to skip parsing
DEB_BUILD_OPTIONS.

[1] 1d0ea9b2ba
[2] https://www.debian.org/doc/debian-policy/ch-source.html#s-debianrules-options

Reported-by: Bastian Germann <bage@linutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-08-29 22:29:35 +09:00
..
atomic locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc 2023-06-16 16:46:30 +02:00
basic kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion 2023-06-22 21:21:06 +09:00
clang-tools gen_compile_commands: add assembly files to compilation database 2023-07-23 22:36:07 +09:00
coccinelle coccinelle: api/atomic_as_refcounter: include message type in output 2022-12-26 21:47:12 +01:00
dtc dts: add riscv include prefix link 2023-03-27 22:45:22 +02:00
dummy-tools kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__ 2022-08-21 02:47:48 +09:00
gcc-plugins Merge branch 'for-linus/hardening' into for-next/hardening 2023-02-02 18:43:28 +00:00
gdb scripts/gdb: fix SB_* constants parsing 2023-06-19 13:19:32 -07:00
genksyms genksyms: adjust the output format to modpost 2022-05-24 16:33:20 +09:00
kconfig kconfig: port qconf to work with Qt6 in addition to Qt5 2023-08-16 12:06:29 +09:00
ksymoops
mod modpost: remove ElF_Rela variables from for-loop in section_rel(a) 2023-07-31 23:42:14 +09:00
package kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules 2023-08-29 22:29:35 +09:00
selinux selinux: remove runtime disable message in the install_policy.sh script 2022-09-20 14:12:25 -04:00
tracing tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
.gitignore kbuild: use git-archive for source package creation 2023-03-16 22:46:12 +09:00
Kbuild.include kbuild: replace $(dot-target).tmp in filechk with $(tmp-target) 2023-01-22 23:43:33 +09:00
Kconfig.include kbuild: Update assembler calls to use proper flags and language target 2023-01-26 12:41:38 +09:00
Lindent
Makefile kbuild: use git-archive for source package creation 2023-03-16 22:46:12 +09:00
Makefile.asm-generic kbuild: add kbuild-file macro 2022-11-22 23:40:02 +09:00
Makefile.build kbuild: rust: avoid creating temporary files 2023-07-24 03:15:31 +09:00
Makefile.clang Kbuild updates for v6.5 2023-07-01 09:24:31 -07:00
Makefile.clean kbuild: make clean rule robust against too long argument error 2023-06-25 23:12:20 +09:00
Makefile.compiler Kbuild updates for v6.5 2023-07-01 09:24:31 -07:00
Makefile.debug Makefile.debug: support for -gz=zstd 2022-11-21 10:18:39 +09:00
Makefile.defconf kbuild: Provide a version of merge_into_defconfig without override warnings 2023-02-13 20:18:28 +01:00
Makefile.dtbinst kbuild: Support flat DTBs install 2023-06-21 07:51:08 -06:00
Makefile.extrawarn extrawarn: move -Wrestrict into W=1 warnings 2023-08-20 14:16:59 +09:00
Makefile.gcc-plugins gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file 2022-08-16 12:25:53 -07:00
Makefile.headersinst
Makefile.host kbuild: rust: avoid creating temporary files 2023-07-24 03:15:31 +09:00
Makefile.kasan kasan: remove hwasan-kernel-mem-intrinsic-prefix=1 for clang-14 2023-04-18 16:29:43 -07:00
Makefile.kcov
Makefile.kcsan kcsan: Ignore GCC 11+ warnings about TSan runtime support 2021-12-09 16:42:27 -08:00
Makefile.kmsan kmsan: add KMSAN runtime core 2022-10-03 14:03:19 -07:00
Makefile.lib kbuild: Disallow DTB overlays to built from .dts named source files 2023-05-22 10:34:37 +09:00
Makefile.modfinal kbuild: Disable GCOV for *.mod.o 2023-06-25 23:12:20 +09:00
Makefile.modinst modules-6.3-rc1 2023-02-23 14:05:08 -08:00
Makefile.modpost linux/export.h: make <linux/export.h> independent of CONFIG_MODULES 2023-07-25 00:59:32 +09:00
Makefile.package kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules 2023-08-29 22:29:35 +09:00
Makefile.randstruct randstruct: Enable Clang support 2022-05-08 01:33:07 -07:00
Makefile.ubsan ubsan: Tighten UBSAN_BOUNDS on GCC 2023-05-16 13:57:14 -07:00
Makefile.userprogs
Makefile.vmlinux kbuild: Fix CFI failures with GCOV 2023-06-25 23:12:20 +09:00
Makefile.vmlinux_o kbuild: move modules.builtin(.modinfo) rules to Makefile.vmlinux_o 2022-10-03 03:52:58 +09:00
as-version.sh kbuild: Update assembler calls to use proper flags and language target 2023-01-26 12:41:38 +09:00
asn1_compiler.c ASN.1: Fix check for strdup() success 2023-04-21 08:58:00 -07:00
bloat-o-meter scripts/bloat-o-meter: use the reverse flag for sort 2023-02-02 22:50:03 -08:00
bootgraph.pl
bpf_doc.py bpf: Remove extra whitespace in SPDX tag for syscall/helpers man pages 2023-04-11 17:45:57 +02:00
cc-can-link.sh
cc-version.sh scripts: Remove ICC-related dead code 2023-04-24 10:18:32 -07:00
check-git kbuild: use git-archive for source package creation 2023-03-16 22:46:12 +09:00
check-sysctl-docs sysctl: Remove register_sysctl_table 2023-05-23 21:43:26 -07:00
check_extable.sh scripts: check_extable: fix typo in user error message 2021-09-08 11:50:28 -07:00
checkdeclares.pl scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
checkincludes.pl
checkkconfigsymbols.py scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
checkpatch.pl Scope-based Resource Management infrastructure 2023-07-04 13:50:38 -07:00
checkstack.pl sh: remove sh5/sh64 last fragments 2023-03-23 10:02:02 +01:00
checksyscalls.sh checksyscalls: ignore fstat to silence build warning on LoongArch 2023-03-23 17:18:32 -07:00
checkversion.pl scripts: checkversion: modernize linux/version.h search strings 2021-08-05 20:55:39 +09:00
cleanfile
cleanpatch
coccicheck scripts: coccicheck: Use /usr/bin/env 2023-02-25 20:11:06 +01:00
config
const_structs.checkpatch const_structs.checkpatch.pl: add kobj_type 2023-02-08 13:33:29 +01:00
decode_stacktrace.sh scripts: decode_stacktrace: demangle Rust symbols 2022-09-28 09:01:40 +02:00
decodecode scripts/decodecode: Add support for RISC-V 2023-02-21 16:53:54 -08:00
depmod.sh Revert "kbuild: Hack for depmod not handling X.Y versions" 2023-07-25 00:59:32 +09:00
dev-needs.sh
diffconfig scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
documentation-file-ref-check scripts: documentation-file-ref-check: fix bpf selftests path 2021-10-26 09:42:29 -06:00
export_report.pl
extract-ikconfig scripts/extract-ikconfig: add zstd compression support 2022-08-29 13:58:47 +09:00
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
extract_xc3028.pl
faddr2line scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-11-16 10:42:10 +01:00
file-size.sh
find-unused-docs.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen-randstruct-seed.sh randstruct: Move seed generation into scripts/basic/ 2022-05-08 01:33:07 -07:00
generate_initcall_order.pl
generate_rust_analyzer.py scripts: generate_rust_analyzer: Handle sub-modules with no Makefile 2023-04-07 00:53:34 +02:00
generate_rust_target.rs x86: enable initial Rust support 2022-09-28 09:02:45 +02:00
get_abi.pl scripts/get_abi: Fix wrong script file name in the help message 2022-04-24 10:38:44 +02:00
get_dvb_firmware
get_feat.pl scripts: get_feat.pl: use /usr/bin/env to find perl 2022-06-30 12:22:17 -06:00
get_maintainer.pl get_maintainer: Honor mailmap for in file emails 2022-04-29 14:38:00 -07:00
gfp-translate scripts: fix the gfp flags header path in gfp-translate 2023-06-19 13:19:32 -07:00
head-object-list.txt powerpc/64: Rename entry_64.S to prom_entry_64.S 2023-06-15 14:04:19 +10:00
headerdep.pl
headers_install.sh scripts: Update the CONFIG_* ignore list in headers_install.sh 2023-03-10 21:05:16 +01:00
insert-sys-cert.c
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
is_rust_module.sh rust: fix regexp in scripts/is_rust_module.sh 2023-04-19 19:28:49 +02:00
jobserver-exec scripts: support GNU make 4.4 in jobserver-exec 2023-01-16 20:15:20 +09:00
kallsyms.c kallsyms: strip LTO-only suffixes from promoted global functions 2023-07-12 15:39:34 -07:00
kernel-doc A half-dozen late arriving docs patches. They are mostly fixes, but we 2023-07-06 22:15:38 -07:00
ld-version.sh
leaking_addresses.pl leaking_addresses: also skip canonical ftrace path 2023-03-29 06:52:08 -04:00
link-vmlinux.sh Kbuild updates for v6.4 2023-04-30 11:32:53 -07:00
makelst
markup_oops.pl
min-tool-version.sh parisc: Raise minimal GCC version to 12.0.0 2023-07-03 18:56:03 +02:00
misc-check kbuild: make W=1 warn files that are tracked but ignored by git 2023-01-22 23:43:33 +09:00
mkcompile_h Revert "kbuild: Make scripts/compile.h when sh != bash" 2022-09-29 04:40:15 +09:00
mksysmap scripts/mksysmap: Ignore prefixed KCFI symbols 2023-06-27 08:35:43 +09:00
mkuboot.sh
module.lds.S arm64: unwind: add asynchronous unwind tables to kernel and modules 2022-11-09 18:06:35 +00:00
modules-check.sh kbuild: change module.order to list *.o instead of *.ko 2022-12-14 15:42:40 +09:00
nsdeps scripts/nsdeps: adjust to the format change of *.mod files 2022-06-08 20:14:13 +09:00
objdiff kbuild: clean .tmp_* pattern by make clean 2022-06-05 06:20:57 +09:00
objdump-func scripts/objdump-func: Support multiple functions 2023-04-14 16:08:28 +02:00
orc_hash.sh x86/unwind/orc: Add ELF section with ORC version identifier 2023-06-16 17:17:42 +02:00
pahole-flags.sh bpf: Add --skip_encoding_btf_inconsistent_proto, --btf_gen_optimized to pahole flags for v1.25 2023-05-12 11:47:05 -07:00
pahole-version.sh kbuild: Add CONFIG_PAHOLE_VERSION 2022-02-02 11:19:33 +01:00
parse-maintainers.pl
patch-kernel
profile2linkerlist.pl
prune-kernel scripts/prune-kernel: Use kernel-install if available 2022-05-11 21:46:38 +09:00
recordmcount.c recordmcount: Fix memory leaks in the uwrite function 2023-04-25 21:10:20 -04:00
recordmcount.h recordmcount: Correct st_shndx handling 2021-06-18 09:09:17 -04:00
recordmcount.pl nds32: Remove the architecture 2022-03-07 13:54:59 +01:00
relocs_check.sh powerpc: Move script to check relocations at compile time in scripts/ 2023-04-19 07:46:31 -07:00
remove-stale-files kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
rust_is_available.sh scripts: add `rust_is_available.sh` 2022-09-28 09:02:06 +02:00
rust_is_available_bindgen_libclang.h scripts: add `rust_is_available.sh` 2022-09-28 09:02:06 +02:00
setlocalversion scripts/setlocalversion: also consider annotated tags of the form vx.y.z-${file_localversion} 2023-08-08 01:08:54 +09:00
show_delta
sign-file.c sign-file: Fix confusing error messages 2022-08-03 23:56:20 +03:00
sorttable.c LoongArch: extable: Add `type` and `data` fields 2022-12-14 08:36:11 +08:00
sorttable.h x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
spdxcheck-test.sh docs: move Linux logo into a new `images` folder 2022-06-01 09:32:45 -06:00
spdxcheck.py scripts/spdxcheck: Put excluded files and directories into a separate file 2022-05-18 15:34:33 +02:00
spdxexclude scripts/spdxcheck: Exclude top-level README 2022-05-18 15:35:42 +02:00
spelling.txt scripts/spelling.txt: add more spellings to spelling.txt 2023-06-09 17:44:13 -07:00
sphinx-pre-install docs: sphinx-pre-install: don't require the RTD theme 2022-10-13 11:14:43 -06:00
split-man.pl
stackdelta
stackusage
subarch.include LoongArch: Add build infrastructure 2022-06-03 20:09:27 +08:00
syscallhdr.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
syscallnr.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
syscalltbl.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
tags.sh Char/Misc and other driver subsystem updates for 6.5-rc1 2023-07-03 12:46:47 -07:00
test_fortify.sh fortify: Update compile-time tests for Clang 14 2022-02-13 16:50:06 -08:00
tools-support-relr.sh Makefile: use -z pack-relative-relocs 2023-04-17 11:23:06 +09:00
unifdef.c
ver_linux
xen-hypercalls.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
xz_wrap.sh