Merge tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Add new kconfig target 'make mod2noconfig', which will be useful to
speed up the build and test iteration.
- Raise the minimum supported version of LLVM to 11.0.0
- Refactor certs/Makefile
- Change the format of include/config/auto.conf to stop double-quoting
string type CONFIG options.
- Fix ARCH=sh builds in dash
- Separate compression macros for general purposes (cmd_bzip2 etc.) and
the ones for decompressors (cmd_bzip2_with_size etc.)
- Misc Makefile cleanups
* tag 'kbuild-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
kbuild: add cmd_file_size
arch: decompressor: remove useless vmlinux.bin.all-y
kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}
kbuild: drop $(size_append) from cmd_zstd
sh: rename suffix-y to suffix_y
doc: kbuild: fix default in `imply` table
microblaze: use built-in function to get CPU_{MAJOR,MINOR,REV}
certs: move scripts/extract-cert to certs/
kbuild: do not quote string values in include/config/auto.conf
kbuild: do not include include/config/auto.conf from shell scripts
certs: simplify $(srctree)/ handling and remove config_filename macro
kbuild: stop using config_filename in scripts/Makefile.modsign
certs: remove misleading comments about GCC PR
certs: refactor file cleaning
certs: remove unneeded -I$(srctree) option for system_certificates.o
certs: unify duplicated cmd_extract_certs and improve the log
certs: use $< and $@ to simplify the key generation rule
kbuild: remove headers_check stub
kbuild: move headers_check.pl to usr/include/
certs: use if_changed to re-generate the key when the key type is changed
...
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 82bc736..666f7bb 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -34,6 +34,10 @@
KBUILD_LDFLAGS="$2"
LDFLAGS_vmlinux="$3"
+is_enabled() {
+ grep -q "^$1=y" include/config/auto.conf
+}
+
# Nice output in kbuild format
# Will be supressed by "make -s"
info()
@@ -80,11 +84,11 @@
${KBUILD_VMLINUX_LIBS} \
--end-group"
- if [ -n "${CONFIG_LTO_CLANG}" ]; then
+ if is_enabled CONFIG_LTO_CLANG; then
gen_initcalls
lds="-T .tmp_initcalls.lds"
- if [ -n "${CONFIG_MODVERSIONS}" ]; then
+ if is_enabled CONFIG_MODVERSIONS; then
gen_symversions
lds="${lds} -T .tmp_symversions.lds"
fi
@@ -104,21 +108,21 @@
local objtoolcmd;
local objtoolopt;
- if [ "${CONFIG_LTO_CLANG} ${CONFIG_STACK_VALIDATION}" = "y y" ]; then
+ if is_enabled CONFIG_LTO_CLANG && is_enabled CONFIG_STACK_VALIDATION; then
# Don't perform vmlinux validation unless explicitly requested,
# but run objtool on vmlinux.o now that we have an object file.
- if [ -n "${CONFIG_UNWINDER_ORC}" ]; then
+ if is_enabled CONFIG_UNWINDER_ORC; then
objtoolcmd="orc generate"
fi
objtoolopt="${objtoolopt} --duplicate"
- if [ -n "${CONFIG_FTRACE_MCOUNT_USE_OBJTOOL}" ]; then
+ if is_enabled CONFIG_FTRACE_MCOUNT_USE_OBJTOOL; then
objtoolopt="${objtoolopt} --mcount"
fi
fi
- if [ -n "${CONFIG_VMLINUX_VALIDATION}" ]; then
+ if is_enabled CONFIG_VMLINUX_VALIDATION; then
objtoolopt="${objtoolopt} --noinstr"
fi
@@ -127,19 +131,19 @@
objtoolcmd="check"
fi
objtoolopt="${objtoolopt} --vmlinux"
- if [ -z "${CONFIG_FRAME_POINTER}" ]; then
+ if ! is_enabled CONFIG_FRAME_POINTER; then
objtoolopt="${objtoolopt} --no-fp"
fi
- if [ -n "${CONFIG_GCOV_KERNEL}" ] || [ -n "${CONFIG_LTO_CLANG}" ]; then
+ if is_enabled CONFIG_GCOV_KERNEL || is_enabled CONFIG_LTO_CLANG; then
objtoolopt="${objtoolopt} --no-unreachable"
fi
- if [ -n "${CONFIG_RETPOLINE}" ]; then
+ if is_enabled CONFIG_RETPOLINE; then
objtoolopt="${objtoolopt} --retpoline"
fi
- if [ -n "${CONFIG_X86_SMAP}" ]; then
+ if is_enabled CONFIG_X86_SMAP; then
objtoolopt="${objtoolopt} --uaccess"
fi
- if [ -n "${CONFIG_SLS}" ]; then
+ if is_enabled CONFIG_SLS; then
objtoolopt="${objtoolopt} --sls"
fi
info OBJTOOL ${1}
@@ -164,7 +168,7 @@
# skip output file argument
shift
- if [ -n "${CONFIG_LTO_CLANG}" ]; then
+ if is_enabled CONFIG_LTO_CLANG; then
# Use vmlinux.o instead of performing the slow LTO link again.
objs=vmlinux.o
libs=
@@ -192,7 +196,7 @@
ldflags="${ldflags} ${wl}--strip-debug"
fi
- if [ -n "${CONFIG_VMLINUX_MAP}" ]; then
+ if is_enabled CONFIG_VMLINUX_MAP; then
ldflags="${ldflags} ${wl}-Map=${output}.map"
fi
@@ -242,15 +246,15 @@
{
local kallsymopt;
- if [ -n "${CONFIG_KALLSYMS_ALL}" ]; then
+ if is_enabled CONFIG_KALLSYMS_ALL; then
kallsymopt="${kallsymopt} --all-symbols"
fi
- if [ -n "${CONFIG_KALLSYMS_ABSOLUTE_PERCPU}" ]; then
+ if is_enabled CONFIG_KALLSYMS_ABSOLUTE_PERCPU; then
kallsymopt="${kallsymopt} --absolute-percpu"
fi
- if [ -n "${CONFIG_KALLSYMS_BASE_RELATIVE}" ]; then
+ if is_enabled CONFIG_KALLSYMS_BASE_RELATIVE; then
kallsymopt="${kallsymopt} --base-relative"
fi
@@ -315,9 +319,6 @@
exit 0
fi
-# We need access to CONFIG_ symbols
-. include/config/auto.conf
-
# Update version
info GEN .version
if [ -r .version ]; then
@@ -346,7 +347,7 @@
tr ' ' '\n' | uniq | sed -e 's:^:kernel/:' -e 's/$/.ko/' > modules.builtin
btf_vmlinux_bin_o=""
-if [ -n "${CONFIG_DEBUG_INFO_BTF}" ]; then
+if is_enabled CONFIG_DEBUG_INFO_BTF; then
btf_vmlinux_bin_o=.btf.vmlinux.bin.o
if ! gen_btf .tmp_vmlinux.btf $btf_vmlinux_bin_o ; then
echo >&2 "Failed to generate BTF for vmlinux"
@@ -358,7 +359,7 @@
kallsymso=""
kallsymso_prev=""
kallsyms_vmlinux=""
-if [ -n "${CONFIG_KALLSYMS}" ]; then
+if is_enabled CONFIG_KALLSYMS; then
# kallsyms support
# Generate section listing all symbols and add it into vmlinux
@@ -398,7 +399,7 @@
vmlinux_link vmlinux "${kallsymso}" ${btf_vmlinux_bin_o}
# fill in BTF IDs
-if [ -n "${CONFIG_DEBUG_INFO_BTF}" -a -n "${CONFIG_BPF}" ]; then
+if is_enabled CONFIG_DEBUG_INFO_BTF && is_enabled CONFIG_BPF; then
info BTFIDS vmlinux
${RESOLVE_BTFIDS} vmlinux
fi
@@ -406,7 +407,7 @@
info SYSMAP System.map
mksysmap vmlinux System.map
-if [ -n "${CONFIG_BUILDTIME_TABLE_SORT}" ]; then
+if is_enabled CONFIG_BUILDTIME_TABLE_SORT; then
info SORTTAB vmlinux
if ! sorttable vmlinux; then
echo >&2 Failed to sort kernel tables
@@ -415,7 +416,7 @@
fi
# step a (see comment above)
-if [ -n "${CONFIG_KALLSYMS}" ]; then
+if is_enabled CONFIG_KALLSYMS; then
mksysmap ${kallsyms_vmlinux} .tmp_System.map
if ! cmp -s System.map .tmp_System.map; then
