forked from luck/tmp_suning_uos_patched
Kbuild fixes for v5.4
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
-----BEGIN PGP SIGNATURE-----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=fSXc
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
* tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: make headers archive reproducible
kbuild: update compile-test header list for v5.4-rc2
kbuild: two minor updates for Documentation/kbuild/modules.rst
scripts/setlocalversion: clear local variable to make it work for sh
namespace: fix namespace.pl script to support relative paths
video/logo: do not generate unneeded logo C files
video/logo: remove unneeded *.o pattern from clean-files
integrity: remove pointless subdir-$(CONFIG_...)
integrity: remove unneeded, broken attempt to add -fshort-wchar
modpost: fix static EXPORT_SYMBOL warnings for UML build
kbuild: correct formatting of header in kbuild module docs
kbuild: remove SUBDIRS support
kbuild: remove ar-option and KBUILD_ARFLAGS
This commit is contained in:
Linus Torvalds
commit
2d00aee21a
|
|
@ -954,11 +954,6 @@ When kbuild executes, the following steps are followed (roughly):
|
|||
|
||||
From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
|
||||
|
||||
KBUILD_ARFLAGS Options for $(AR) when creating archives
|
||||
|
||||
$(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
|
||||
mode) if this option is supported by $(AR).
|
||||
|
||||
KBUILD_LDS
|
||||
|
||||
The linker script with full path. Assigned by the top-level Makefile.
|
||||
|
|
|
|||
|
|
@ -498,10 +498,11 @@ build.
|
|||
will be written containing all exported symbols that were not
|
||||
defined in the kernel.
|
||||
|
||||
--- 6.3 Symbols From Another External Module
|
||||
6.3 Symbols From Another External Module
|
||||
----------------------------------------
|
||||
|
||||
Sometimes, an external module uses exported symbols from
|
||||
another external module. kbuild needs to have full knowledge of
|
||||
another external module. Kbuild needs to have full knowledge of
|
||||
all symbols to avoid spitting out warnings about undefined
|
||||
symbols. Three solutions exist for this situation.
|
||||
|
||||
|
|
@ -521,7 +522,7 @@ build.
|
|||
The top-level kbuild file would then look like::
|
||||
|
||||
#./Kbuild (or ./Makefile):
|
||||
obj-y := foo/ bar/
|
||||
obj-m := foo/ bar/
|
||||
|
||||
And executing::
|
||||
|
||||
|
|
|
|||
|
|
@ -16,16 +16,21 @@ the kernel may be unreproducible, and how to avoid them.
|
|||
Timestamps
|
||||
----------
|
||||
|
||||
The kernel embeds a timestamp in two places:
|
||||
The kernel embeds timestamps in three places:
|
||||
|
||||
* The version string exposed by ``uname()`` and included in
|
||||
``/proc/version``
|
||||
|
||||
* File timestamps in the embedded initramfs
|
||||
|
||||
By default the timestamp is the current time. This must be overridden
|
||||
using the `KBUILD_BUILD_TIMESTAMP`_ variable. If you are building
|
||||
from a git commit, you could use its commit date.
|
||||
* If enabled via ``CONFIG_IKHEADERS``, file timestamps of kernel
|
||||
headers embedded in the kernel or respective module,
|
||||
exposed via ``/sys/kernel/kheaders.tar.xz``
|
||||
|
||||
By default the timestamp is the current time and in the case of
|
||||
``kheaders`` the various files' modification times. This must
|
||||
be overridden using the `KBUILD_BUILD_TIMESTAMP`_ variable.
|
||||
If you are building from a git commit, you could use its commit date.
|
||||
|
||||
The kernel does *not* use the ``__DATE__`` and ``__TIME__`` macros,
|
||||
and enables warnings if they are used. If you incorporate external
|
||||
|
|
|
|||
24
Makefile
24
Makefile
|
|
@ -206,24 +206,8 @@ ifndef KBUILD_CHECKSRC
|
|||
KBUILD_CHECKSRC = 0
|
||||
endif
|
||||
|
||||
# Use make M=dir to specify directory of external module to build
|
||||
# Old syntax make ... SUBDIRS=$PWD is still supported
|
||||
# Setting the environment variable KBUILD_EXTMOD take precedence
|
||||
ifdef SUBDIRS
|
||||
$(warning ================= WARNING ================)
|
||||
$(warning 'SUBDIRS' will be removed after Linux 5.3)
|
||||
$(warning )
|
||||
$(warning If you are building an individual subdirectory)
|
||||
$(warning in the kernel tree, you can do like this:)
|
||||
$(warning $$ make path/to/dir/you/want/to/build/)
|
||||
$(warning (Do not forget the trailing slash))
|
||||
$(warning )
|
||||
$(warning If you are building an external module,)
|
||||
$(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
|
||||
$(warning ==========================================)
|
||||
KBUILD_EXTMOD ?= $(SUBDIRS)
|
||||
endif
|
||||
|
||||
# Use make M=dir or set the environment variable KBUILD_EXTMOD to specify the
|
||||
# directory of external module to build. Setting M= takes precedence.
|
||||
ifeq ("$(origin M)", "command line")
|
||||
KBUILD_EXTMOD := $(M)
|
||||
endif
|
||||
|
|
@ -498,7 +482,6 @@ export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE CFLAGS_UBSAN
|
|||
export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
|
||||
export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
|
||||
export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
|
||||
export KBUILD_ARFLAGS
|
||||
|
||||
# Files to ignore in find ... statements
|
||||
|
||||
|
|
@ -914,9 +897,6 @@ ifdef CONFIG_RETPOLINE
|
|||
KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
|
||||
endif
|
||||
|
||||
# use the deterministic mode of AR if available
|
||||
KBUILD_ARFLAGS := $(call ar-option,D)
|
||||
|
||||
include scripts/Makefile.kasan
|
||||
include scripts/Makefile.extrawarn
|
||||
include scripts/Makefile.ubsan
|
||||
|
|
|
|||
|
|
@ -50,7 +50,7 @@ endif
|
|||
|
||||
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -nostdinc
|
||||
|
||||
BOOTARFLAGS := -cr$(KBUILD_ARFLAGS)
|
||||
BOOTARFLAGS := -crD
|
||||
|
||||
ifdef CONFIG_CC_IS_CLANG
|
||||
BOOTCFLAGS += $(CLANG_FLAGS)
|
||||
|
|
|
|||
|
|
@ -18,23 +18,6 @@ obj-$(CONFIG_SPU_BASE) += logo_spe_clut224.o
|
|||
|
||||
# How to generate logo's
|
||||
|
||||
# Use logo-cfiles to retrieve list of .c files to be built
|
||||
logo-cfiles = $(notdir $(patsubst %.$(2), %.c, \
|
||||
$(wildcard $(srctree)/$(src)/*$(1).$(2))))
|
||||
|
||||
|
||||
# Mono logos
|
||||
extra-y += $(call logo-cfiles,_mono,pbm)
|
||||
|
||||
# VGA16 logos
|
||||
extra-y += $(call logo-cfiles,_vga16,ppm)
|
||||
|
||||
# 224 Logos
|
||||
extra-y += $(call logo-cfiles,_clut224,ppm)
|
||||
|
||||
# Gray 256
|
||||
extra-y += $(call logo-cfiles,_gray256,pgm)
|
||||
|
||||
pnmtologo := scripts/pnmtologo
|
||||
|
||||
# Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..."
|
||||
|
|
@ -55,5 +38,5 @@ $(obj)/%_clut224.c: $(src)/%_clut224.ppm $(pnmtologo) FORCE
|
|||
$(obj)/%_gray256.c: $(src)/%_gray256.pgm $(pnmtologo) FORCE
|
||||
$(call if_changed,logo)
|
||||
|
||||
# Files generated that shall be removed upon make clean
|
||||
clean-files := *.o *_mono.c *_vga16.c *_clut224.c *_gray256.c
|
||||
# generated C files
|
||||
targets += *_mono.c *_vga16.c *_clut224.c *_gray256.c
|
||||
|
|
|
|||
|
|
@ -71,7 +71,10 @@ done | cpio --quiet -pd $cpio_dir >/dev/null 2>&1
|
|||
find $cpio_dir -type f -print0 |
|
||||
xargs -0 -P8 -n1 perl -pi -e 'BEGIN {undef $/;}; s/\/\*((?!SPDX).)*?\*\///smg;'
|
||||
|
||||
tar -Jcf $tarfile -C $cpio_dir/ . > /dev/null
|
||||
# Create archive and try to normalize metadata for reproducibility
|
||||
tar "${KBUILD_BUILD_TIMESTAMP:+--mtime=$KBUILD_BUILD_TIMESTAMP}" \
|
||||
--owner=0 --group=0 --sort=name --numeric-owner \
|
||||
-Jcf $tarfile -C $cpio_dir/ . > /dev/null
|
||||
|
||||
echo "$src_files_md5" > kernel/kheaders.md5
|
||||
echo "$obj_files_md5" >> kernel/kheaders.md5
|
||||
|
|
|
|||
|
|
@ -143,11 +143,6 @@ cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || e
|
|||
# Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y)
|
||||
ld-option = $(call try-run, $(LD) $(KBUILD_LDFLAGS) $(1) -v,$(1),$(2),$(3))
|
||||
|
||||
# ar-option
|
||||
# Usage: KBUILD_ARFLAGS := $(call ar-option,D)
|
||||
# Important: no spaces around options
|
||||
ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2))
|
||||
|
||||
# ld-version
|
||||
# Note this is mainly for HJ Lu's 3 number binutil versions
|
||||
ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh)
|
||||
|
|
|
|||
|
|
@ -389,7 +389,7 @@ $(sort $(subdir-obj-y)): $(subdir-ym) ;
|
|||
ifdef builtin-target
|
||||
|
||||
quiet_cmd_ar_builtin = AR $@
|
||||
cmd_ar_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
|
||||
cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs)
|
||||
|
||||
$(builtin-target): $(real-obj-y) FORCE
|
||||
$(call if_changed,ar_builtin)
|
||||
|
|
|
|||
|
|
@ -232,7 +232,7 @@ quiet_cmd_ld = LD $@
|
|||
# ---------------------------------------------------------------------------
|
||||
|
||||
quiet_cmd_ar = AR $@
|
||||
cmd_ar = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(real-prereqs)
|
||||
cmd_ar = rm -f $@; $(AR) cDPrsT $@ $(real-prereqs)
|
||||
|
||||
# Objcopy
|
||||
# ---------------------------------------------------------------------------
|
||||
|
|
|
|||
|
|
@ -2652,15 +2652,20 @@ int main(int argc, char **argv)
|
|||
fatal("modpost: Section mismatches detected.\n"
|
||||
"Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.\n");
|
||||
for (n = 0; n < SYMBOL_HASH_SIZE; n++) {
|
||||
struct symbol *s = symbolhash[n];
|
||||
struct symbol *s;
|
||||
|
||||
for (s = symbolhash[n]; s; s = s->next) {
|
||||
/*
|
||||
* Do not check "vmlinux". This avoids the same warnings
|
||||
* shown twice, and false-positives for ARCH=um.
|
||||
*/
|
||||
if (is_vmlinux(s->module->name) && !s->module->is_dot_o)
|
||||
continue;
|
||||
|
||||
while (s) {
|
||||
if (s->is_static)
|
||||
warn("\"%s\" [%s] is a static %s\n",
|
||||
s->name, s->module->name,
|
||||
export_str(s->export));
|
||||
|
||||
s = s->next;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -65,13 +65,14 @@
|
|||
use warnings;
|
||||
use strict;
|
||||
use File::Find;
|
||||
use File::Spec;
|
||||
|
||||
my $nm = ($ENV{'NM'} || "nm") . " -p";
|
||||
my $objdump = ($ENV{'OBJDUMP'} || "objdump") . " -s -j .comment";
|
||||
my $srctree = "";
|
||||
my $objtree = "";
|
||||
$srctree = "$ENV{'srctree'}/" if (exists($ENV{'srctree'}));
|
||||
$objtree = "$ENV{'objtree'}/" if (exists($ENV{'objtree'}));
|
||||
my $srctree = File::Spec->curdir();
|
||||
my $objtree = File::Spec->curdir();
|
||||
$srctree = File::Spec->rel2abs($ENV{'srctree'}) if (exists($ENV{'srctree'}));
|
||||
$objtree = File::Spec->rel2abs($ENV{'objtree'}) if (exists($ENV{'objtree'}));
|
||||
|
||||
if ($#ARGV != -1) {
|
||||
print STDERR "usage: $0 takes no parameters\n";
|
||||
|
|
@ -231,9 +232,9 @@ sub do_nm
|
|||
}
|
||||
($source = $basename) =~ s/\.o$//;
|
||||
if (-e "$source.c" || -e "$source.S") {
|
||||
$source = "$objtree$File::Find::dir/$source";
|
||||
$source = File::Spec->catfile($objtree, $File::Find::dir, $source)
|
||||
} else {
|
||||
$source = "$srctree$File::Find::dir/$source";
|
||||
$source = File::Spec->catfile($srctree, $File::Find::dir, $source)
|
||||
}
|
||||
if (! -e "$source.c" && ! -e "$source.S") {
|
||||
# No obvious source, exclude the object if it is conglomerate
|
||||
|
|
|
|||
|
|
@ -126,7 +126,7 @@ scm_version()
|
|||
|
||||
collect_files()
|
||||
{
|
||||
local file res
|
||||
local file res=
|
||||
|
||||
for file; do
|
||||
case "$file" in
|
||||
|
|
|
|||
|
|
@ -13,9 +13,6 @@ integrity-$(CONFIG_INTEGRITY_PLATFORM_KEYRING) += platform_certs/platform_keyrin
|
|||
integrity-$(CONFIG_LOAD_UEFI_KEYS) += platform_certs/efi_parser.o \
|
||||
platform_certs/load_uefi.o
|
||||
integrity-$(CONFIG_LOAD_IPL_KEYS) += platform_certs/load_ipl_s390.o
|
||||
$(obj)/load_uefi.o: KBUILD_CFLAGS += -fshort-wchar
|
||||
|
||||
subdir-$(CONFIG_IMA) += ima
|
||||
obj-$(CONFIG_IMA) += ima/
|
||||
subdir-$(CONFIG_EVM) += evm
|
||||
obj-$(CONFIG_EVM) += evm/
|
||||
|
|
|
|||
|
|
@ -29,13 +29,11 @@ header-test- += linux/android/binderfs.h
|
|||
header-test-$(CONFIG_CPU_BIG_ENDIAN) += linux/byteorder/big_endian.h
|
||||
header-test-$(CONFIG_CPU_LITTLE_ENDIAN) += linux/byteorder/little_endian.h
|
||||
header-test- += linux/coda.h
|
||||
header-test- += linux/coda_psdev.h
|
||||
header-test- += linux/elfcore.h
|
||||
header-test- += linux/errqueue.h
|
||||
header-test- += linux/fsmap.h
|
||||
header-test- += linux/hdlc/ioctl.h
|
||||
header-test- += linux/ivtv.h
|
||||
header-test- += linux/jffs2.h
|
||||
header-test- += linux/kexec.h
|
||||
header-test- += linux/matroxfb.h
|
||||
header-test- += linux/netfilter_ipv4/ipt_LOG.h
|
||||
|
|
@ -55,20 +53,12 @@ header-test- += linux/v4l2-mediabus.h
|
|||
header-test- += linux/v4l2-subdev.h
|
||||
header-test- += linux/videodev2.h
|
||||
header-test- += linux/vm_sockets.h
|
||||
header-test- += scsi/scsi_bsg_fc.h
|
||||
header-test- += scsi/scsi_netlink.h
|
||||
header-test- += scsi/scsi_netlink_fc.h
|
||||
header-test- += sound/asequencer.h
|
||||
header-test- += sound/asoc.h
|
||||
header-test- += sound/asound.h
|
||||
header-test- += sound/compress_offload.h
|
||||
header-test- += sound/emu10k1.h
|
||||
header-test- += sound/sfnt_info.h
|
||||
header-test- += sound/sof/eq.h
|
||||
header-test- += sound/sof/fw.h
|
||||
header-test- += sound/sof/header.h
|
||||
header-test- += sound/sof/manifest.h
|
||||
header-test- += sound/sof/trace.h
|
||||
header-test- += xen/evtchn.h
|
||||
header-test- += xen/gntdev.h
|
||||
header-test- += xen/privcmd.h
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user