kbuild: change module.order to list *.o instead of *.ko

scripts/Makefile.build replaces the suffix .o with .ko, then
scripts/Makefile.modpost calls the sed command to change .ko back
to the original .o suffix.

Instead of converting the suffixes back-and-forth, store the .o paths
in modules.order, and replace it with .ko in 'make modules_install'.

This avoids the unneeded sed command.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
This commit is contained in:
Masahiro Yamada 2022-12-11 22:04:07 +09:00
parent 875ef1a57f
commit f65a486821
9 changed files with 21 additions and 21 deletions

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@ -1564,7 +1564,7 @@ __modinst_pre:
rm -f $(MODLIB)/build ; \
ln -s $(CURDIR) $(MODLIB)/build ; \
fi
@sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order
@sed 's:^\(.*\)\.o$$:kernel/\1.ko:' modules.order > $(MODLIB)/modules.order
@cp -f modules.builtin $(MODLIB)/
@cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/

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@ -435,7 +435,7 @@ $(obj)/built-in.a: $(real-obj-y) FORCE
# modules.order unless contained modules are updated.
cmd_modules_order = { $(foreach m, $(real-prereqs), \
$(if $(filter %/modules.order, $m), cat $m, echo $(patsubst %.o,%.ko,$m));) :; } \
$(if $(filter %/modules.order, $m), cat $m, echo $m);) :; } \
> $@
$(obj)/modules.order: $(obj-m) FORCE

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@ -15,7 +15,7 @@ include $(srctree)/scripts/Makefile.lib
# find all modules listed in modules.order
modules := $(call read-file, $(MODORDER))
__modfinal: $(modules)
__modfinal: $(modules:%.o=%.ko)
@:
# modname and part-of-module are set to make c_flags define proper module flags
@ -57,13 +57,13 @@ if_changed_except = $(if $(call newer_prereqs_except,$(2))$(cmd-check), \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
# Re-generate module BTFs if either module's .ko or vmlinux changed
$(modules): %.ko: %.o %.mod.o scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE
%.ko: %.o %.mod.o scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE
+$(call if_changed_except,ld_ko_o,vmlinux)
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
+$(if $(newer-prereqs),$(call cmd,btf_ko))
endif
targets += $(modules) $(modules:.ko=.mod.o)
targets += $(modules:%.o=%.ko) $(modules:%.o=%.mod.o)
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------

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@ -26,7 +26,7 @@ suffix-$(CONFIG_MODULE_COMPRESS_GZIP) := .gz
suffix-$(CONFIG_MODULE_COMPRESS_XZ) := .xz
suffix-$(CONFIG_MODULE_COMPRESS_ZSTD) := .zst
modules := $(patsubst $(extmod_prefix)%, $(dst)/%$(suffix-y), $(modules))
modules := $(patsubst $(extmod_prefix)%.o, $(dst)/%.ko$(suffix-y), $(modules))
__modinst: $(modules)
@:

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@ -107,7 +107,10 @@ ifneq ($(KBUILD_MODPOST_WARN)$(missing-input),)
modpost-args += -w
endif
modorder-if-needed := $(if $(KBUILD_MODULES), $(MODORDER))
ifdef KBUILD_MODULES
modorder-if-needed := $(MODORDER)
modpost-args += -T $(MODORDER)
endif
MODPOST = scripts/mod/modpost
@ -119,7 +122,7 @@ quiet_cmd_modpost = MODPOST $@
echo >&2 "WARNING: $(missing-input) is missing."; \
echo >&2 " Modules may not have dependencies or modversions."; \
echo >&2 " You may get many unresolved symbol warnings.";) \
sed 's/ko$$/o/' $(or $(modorder-if-needed), /dev/null) | $(MODPOST) $(modpost-args) -T - $(vmlinux.o-if-present)
$(MODPOST) $(modpost-args) $(vmlinux.o-if-present)
targets += $(output-symdump)
$(output-symdump): $(modorder-if-needed) $(vmlinux.o-if-present) $(module.symvers-if-present) $(MODPOST) FORCE

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@ -138,10 +138,10 @@ def cmdfiles_for_modorder(modorder):
"""
with open(modorder) as f:
for line in f:
ko = line.rstrip()
base, ext = os.path.splitext(ko)
if ext != '.ko':
sys.exit('{}: module path must end with .ko'.format(ko))
obj = line.rstrip()
base, ext = os.path.splitext(obj)
if ext != '.o':
sys.exit('{}: module path must end with .o'.format(obj))
mod = base + '.mod'
# Read from *.mod, to get a list of objects that compose the module.
with open(mod) as m:

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@ -48,7 +48,7 @@ cat > "$output_file" << EOT
EOT
{
[ -n "${read_modorder}" ] && sed 's/ko$/usyms/' modules.order | xargs cat
[ -n "${read_modorder}" ] && sed 's/o$/usyms/' modules.order | xargs cat
echo "$needed_symbols"
[ -n "$ksym_wl" ] && cat "$ksym_wl"
} | sed -e 's/ /\n/g' | sed -n -e '/^$/!p' |

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@ -1856,11 +1856,9 @@ static void read_symbols_from_files(const char *filename)
FILE *in = stdin;
char fname[PATH_MAX];
if (strcmp(filename, "-") != 0) {
in = fopen(filename, "r");
if (!in)
fatal("Can't open filenames file %s: %m", filename);
}
while (fgets(fname, PATH_MAX, in) != NULL) {
if (strends(fname, "\n"))
@ -1868,7 +1866,6 @@ static void read_symbols_from_files(const char *filename)
read_symbols(fname);
}
if (in != stdin)
fclose(in);
}

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@ -16,7 +16,7 @@ check_same_name_modules()
for m in $(sed 's:.*/::' "$1" | sort | uniq -d)
do
echo "error: the following would cause module name conflict:" >&2
sed -n "/\/$m/s:^: :p" "$1" >&2
sed -n "/\/$m/s:^\(.*\)\.o\$: \1.ko:p" "$1" >&2
exit_code=1
done
}