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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-19 12:33:32 -0600 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-19 12:33:32 -0600 |
commit | 6feb57c2fd7c787aecf2846a535248899e7b70fa (patch) | |
tree | d87341e41639f58c464919fa857f5411e6f74344 | |
parent | 158738ea75059fb4ddf812e2cb9fe1ff6e22bc70 (diff) | |
parent | 731c4eac848ff9dd42776da8ed3407b257e3abf0 (diff) | |
download | linux-6feb57c2fd7c787aecf2846a535248899e7b70fa.tar.gz linux-6feb57c2fd7c787aecf2846a535248899e7b70fa.tar.bz2 linux-6feb57c2fd7c787aecf2846a535248899e7b70fa.zip |
Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
* tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
buildtar: fix tarballs with EFI_ZBOOT enabled
modpost: Include '.text.*' in TEXT_SECTIONS
padata: Mark padata_work_init() as __ref
kbuild: ensure Make >= 3.82 is used
kbuild: refactor the prerequisites of the modpost rule
kbuild: change module.order to list *.o instead of *.ko
kbuild: use .NOTINTERMEDIATE for future GNU Make versions
kconfig: refactor Makefile to reduce process forks
kbuild: add read-file macro
kbuild: do not sort after reading modules.order
kbuild: add test-{ge,gt,le,lt} macros
Documentation: raise minimum supported version of binutils to 2.25
kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds
kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS
kbuild: Port silent mode detection to future gnu make.
init/version.c: remove #include <generated/utsrelease.h>
firmware_loader: remove #include <generated/utsrelease.h>
modpost: Mark uuid_le type to be suitable only for MEI
kbuild: add ability to make source rpm buildable using koji
kbuild: warn objects shared among multiple modules
...
42 files changed, 286 insertions, 156 deletions
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst index 9844ca3a71a6..ef540865ad22 100644 --- a/Documentation/process/changes.rst +++ b/Documentation/process/changes.rst @@ -35,7 +35,7 @@ Rust (optional) 1.62.0 rustc --version bindgen (optional) 0.56.0 bindgen --version GNU make 3.82 make --version bash 4.2 bash --version -binutils 2.23 ld -v +binutils 2.25 ld -v flex 2.5.35 flex --version bison 2.0 bison --version pahole 1.16 pahole --version @@ -119,7 +119,7 @@ Bash 4.2 or newer is needed. Binutils -------- -Binutils 2.23 or newer is needed to build the kernel. +Binutils 2.25 or newer is needed to build the kernel. pkg-config ---------- @@ -11,6 +11,10 @@ NAME = Hurr durr I'ma ninja sloth # Comments in this file are targeted only to the developer, do not # expect to learn how to build the kernel reading this file. +ifeq ($(filter undefine,$(.FEATURES)),) +$(error GNU Make >= 3.82 is required. Your Make version is $(MAKE_VERSION)) +endif + $(if $(filter __%, $(MAKECMDGOALS)), \ $(error targets prefixed with '__' are only for internal use)) @@ -93,10 +97,17 @@ endif # If the user is running make -s (silent mode), suppress echoing of # commands +# make-4.0 (and later) keep single letter options in the 1st word of MAKEFLAGS. -ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),) - quiet=silent_ - KBUILD_VERBOSE = 0 +ifeq ($(filter 3.%,$(MAKE_VERSION)),) +silence:=$(findstring s,$(firstword -$(MAKEFLAGS))) +else +silence:=$(findstring s,$(filter-out --%,$(MAKEFLAGS))) +endif + +ifeq ($(silence),s) +quiet=silent_ +KBUILD_VERBOSE = 0 endif export quiet Q KBUILD_VERBOSE @@ -369,7 +380,7 @@ else # !mixed-build include $(srctree)/scripts/Kbuild.include # Read KERNELRELEASE from include/config/kernel.release (if it exists) -KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) +KERNELRELEASE = $(call read-file, include/config/kernel.release) KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION @@ -859,7 +870,8 @@ stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong KBUILD_CFLAGS += $(stackp-flags-y) -KBUILD_CFLAGS-$(CONFIG_WERROR) += -Werror +KBUILD_CPPFLAGS-$(CONFIG_WERROR) += -Werror +KBUILD_CPPFLAGS += $(KBUILD_CPPFLAGS-y) KBUILD_CFLAGS-$(CONFIG_CC_NO_ARRAY_BOUNDS) += -Wno-array-bounds KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarnings @@ -990,7 +1002,7 @@ KBUILD_LDFLAGS += -mllvm -import-instr-limit=5 # Check for frame size exceeding threshold during prolog/epilog insertion # when using lld < 13.0.0. ifneq ($(CONFIG_FRAME_WARN),0) -ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0) +ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y) KBUILD_LDFLAGS += -plugin-opt=-warn-stack-size=$(CONFIG_FRAME_WARN) endif endif @@ -1560,7 +1572,7 @@ __modinst_pre: rm -f $(MODLIB)/build ; \ ln -s $(CURDIR) $(MODLIB)/build ; \ fi - @sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order + @sed 's:^\(.*\)\.o$$:kernel/\1.ko:' modules.order > $(MODLIB)/modules.order @cp -f modules.builtin $(MODLIB)/ @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 0d13b597cb55..faf2c2177094 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -37,7 +37,7 @@ else endif ifeq ($(CONFIG_LD_IS_LLD),y) -ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 150000; echo $$?),0) +ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 150000),y) KBUILD_CFLAGS += -mno-relax KBUILD_AFLAGS += -mno-relax ifndef CONFIG_AS_IS_LLVM diff --git a/arch/x86/Makefile b/arch/x86/Makefile index a3a07df8a609..9cf07322875a 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -217,7 +217,7 @@ endif KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE) ifdef CONFIG_LTO_CLANG -ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0) +ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y) KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8) endif endif diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h index fe77e91c38a2..bf549d6500d7 100644 --- a/drivers/base/firmware_loader/firmware.h +++ b/drivers/base/firmware_loader/firmware.h @@ -9,8 +9,6 @@ #include <linux/list.h> #include <linux/completion.h> -#include <generated/utsrelease.h> - /** * enum fw_opt - options to control firmware loading behaviour * diff --git a/init/version.c b/init/version.c index 01d4ab05f0ba..f117921811b4 100644 --- a/init/version.c +++ b/init/version.c @@ -15,7 +15,6 @@ #include <linux/printk.h> #include <linux/uts.h> #include <linux/utsname.h> -#include <generated/utsrelease.h> #include <linux/proc_ns.h> static int __init early_hostname(char *arg) diff --git a/kernel/padata.c b/kernel/padata.c index de90af5fcbe6..e007b8a4b738 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -83,8 +83,16 @@ static struct padata_work *padata_work_alloc(void) return pw; } -static void padata_work_init(struct padata_work *pw, work_func_t work_fn, - void *data, int flags) +/* + * This function is marked __ref because this function may be optimized in such + * a way that it directly refers to work_fn's address, which causes modpost to + * complain when work_fn is marked __init. This scenario was observed with clang + * LTO, where padata_work_init() was optimized to refer directly to + * padata_mt_helper() because the calls to padata_work_init() with other work_fn + * values were eliminated or inlined. + */ +static void __ref padata_work_init(struct padata_work *pw, work_func_t work_fn, + void *data, int flags) { if (flags & PADATA_WORK_ONSTACK) INIT_WORK_ONSTACK(&pw->pw_work, work_fn); diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index d3784039738e..881c3f84e88a 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -312,8 +312,21 @@ config DEBUG_INFO_REDUCED DEBUG_INFO build and compile times are reduced too. Only works with newer gcc versions. -config DEBUG_INFO_COMPRESSED - bool "Compressed debugging information" +choice + prompt "Compressed Debug information" + help + Compress the resulting debug info. Results in smaller debug info sections, + but requires that consumers are able to decompress the results. + + If unsure, choose DEBUG_INFO_COMPRESSED_NONE. + +config DEBUG_INFO_COMPRESSED_NONE + bool "Don't compress debug information" + help + Don't compress debug info sections. + +config DEBUG_INFO_COMPRESSED_ZLIB + bool "Compress debugging information with zlib" depends on $(cc-option,-gz=zlib) depends on $(ld-option,--compress-debug-sections=zlib) help @@ -327,6 +340,18 @@ config DEBUG_INFO_COMPRESSED preferable to setting $KDEB_COMPRESS to "none" which would be even larger. +config DEBUG_INFO_COMPRESSED_ZSTD + bool "Compress debugging information with zstd" + depends on $(cc-option,-gz=zstd) + depends on $(ld-option,--compress-debug-sections=zstd) + help + Compress the debug information using zstd. This may provide better + compression than zlib, for about the same time costs, but requires newer + toolchain support. Requires GCC 13.0+ or Clang 16.0+, binutils 2.40+, and + zstd. + +endchoice # "Compressed Debug information" + config DEBUG_INFO_SPLIT bool "Produce split debuginfo in .dwo files" depends on $(cc-option,-gsplit-dwarf) diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 2bc08ace38a3..2f7356b2990b 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -10,6 +10,26 @@ empty := space := $(empty) $(empty) space_escape := _-_SPACE_-_ pound := \# +define newline + + +endef + +### +# Comparison macros. +# Usage: $(call test-lt, $(CONFIG_LLD_VERSION), 150000) +# +# Use $(intcmp ...) if supported. (Make >= 4.4) +# Otherwise, fall back to the 'test' shell command. +ifeq ($(intcmp 1,0,,,y),y) +test-ge = $(intcmp $(strip $1)0, $(strip $2)0,,y,y) +test-gt = $(intcmp $(strip $1)0, $(strip $2)0,,,y) +else +test-ge = $(shell test $(strip $1)0 -ge $(strip $2)0 && echo y) +test-gt = $(shell test $(strip $1)0 -gt $(strip $2)0 && echo y) +endif +test-le = $(call test-ge, $2, $1) +test-lt = $(call test-gt, $2, $1) ### # Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o @@ -41,6 +61,21 @@ escsq = $(subst $(squote),'\$(squote)',$1) stringify = $(squote)$(quote)$1$(quote)$(squote) ### +# The path to Kbuild or Makefile. Kbuild has precedence over Makefile. +kbuild-dir = $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) +kbuild-file = $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile) + +### +# Read a file, replacing newlines with spaces +# +# Make 4.2 or later can read a file by using its builtin function. +ifneq ($(filter-out 3.% 4.0 4.1, $(MAKE_VERSION)),) +read-file = $(subst $(newline),$(space),$(file < $1)) +else +read-file = $(shell cat $1 2>/dev/null) +endif + +### # Easy method for doing a status message kecho := : quiet_kecho := echo @@ -150,9 +185,6 @@ endif make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1))))) # Find any prerequisites that are newer than target or that do not exist. -# (This is not true for now; $? should contain any non-existent prerequisites, -# but it does not work as expected when .SECONDARY is present. This seems a bug -# of GNU Make.) # PHONY targets skipped in both cases. newer-prereqs = $(filter-out $(PHONY),$?) @@ -228,4 +260,14 @@ endif .DELETE_ON_ERROR: # do not delete intermediate files automatically +# +# .NOTINTERMEDIATE is more correct, but only available on newer Make versions. +# Make 4.4 introduced .NOTINTERMEDIATE, and it appears in .FEATURES, but the +# global .NOTINTERMEDIATE does not work. We can use it on Make > 4.4. +# Use .SECONDARY for older Make versions, but "newer-prereq" cannot detect +# deleted files. +ifneq ($(and $(filter notintermediate, $(.FEATURES)),$(filter-out 4.4,$(MAKE_VERSION))),) +.NOTINTERMEDIATE: +else .SECONDARY: +endif diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic index 1d501c57f9ef..8d01b37b7677 100644 --- a/scripts/Makefile.asm-generic +++ b/scripts/Makefile.asm-generic @@ -10,15 +10,15 @@ PHONY := all all: src := $(subst /generated,,$(obj)) --include $(src)/Kbuild + +include $(srctree)/scripts/Kbuild.include +-include $(kbuild-file) # $(generic)/Kbuild lists mandatory-y. Exclude um since it is a special case. ifneq ($(SRCARCH),um) include $(srctree)/$(generic)/Kbuild endif -include $(srctree)/scripts/Kbuild.include - redundant := $(filter $(mandatory-y) $(generated-y), $(generic-y)) redundant += $(foreach f, $(generic-y), $(if $(wildcard $(srctree)/$(src)/$(f)),$(f))) redundant := $(sort $(redundant)) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 3ceab076127b..a0d5c6cca76d 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -38,11 +38,7 @@ subdir-ccflags-y := include $(srctree)/scripts/Kbuild.include include $(srctree)/scripts/Makefile.compiler - -# The filename Kbuild has precedence over Makefile -kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) -include $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile) - +include $(kbuild-file) include $(srctree)/scripts/Makefile.lib # Do not include hostprogs rules unless needed. @@ -226,6 +222,10 @@ endif cmd_check_local_export = $(srctree)/scripts/check-local-export $@ +ifneq ($(findstring 1, $(KBUILD_EXTRA_WARN)),) +cmd_warn_shared_object = $(if $(word 2, $(modname-multi)),$(warning $(kbuild-file): $*.o is added to multiple modules: $(modname-multi))) +endif + define rule_cc_o_c $(call cmd_and_fixdep,cc_o_c) $(call cmd,gen_ksymdeps) @@ -235,6 +235,7 @@ define rule_cc_o_c $(call cmd,gen_objtooldep) $(call cmd,gen_symversions_c) $(call cmd,record_mcount) + $(call cmd,warn_shared_object) endef define rule_as_o_S @@ -243,6 +244,7 @@ define rule_as_o_S $(call cmd,check_local_export) $(call cmd,gen_objtooldep) $(call cmd,gen_symversions_S) + $(call cmd,warn_shared_object) endef # Built-in and composite module parts @@ -433,7 +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 diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean index 878cec648959..3649900696dd 100644 --- a/scripts/Makefile.clean +++ b/scripts/Makefile.clean @@ -9,10 +9,7 @@ PHONY := __clean __clean: include $(srctree)/scripts/Kbuild.include - -# The filename Kbuild has precedence over Makefile -kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) -include $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile) +include $(kbuild-file) # Figure out what we need to build from the various variables # ========================================================================== diff --git a/scripts/Makefile.compiler b/scripts/Makefile.compiler index 20d353dcabfb..3d8adfd34af1 100644 --- a/scripts/Makefile.compiler +++ b/scripts/Makefile.compiler @@ -63,11 +63,11 @@ cc-disable-warning = $(call try-run,\ # gcc-min-version # Usage: cflags-$(call gcc-min-version, 70100) += -foo -gcc-min-version = $(shell [ $(CONFIG_GCC_VERSION)0 -ge $(1)0 ] && echo y) +gcc-min-version = $(call test-ge, $(CONFIG_GCC_VERSION), $1) # clang-min-version # Usage: cflags-$(call clang-min-version, 110000) += -foo -clang-min-version = $(shell [ $(CONFIG_CLANG_VERSION)0 -ge $(1)0 ] && echo y) +clang-min-version = $(call test-ge, $(CONFIG_CLANG_VERSION), $1) # ld-option # Usage: KBUILD_LDFLAGS += $(call ld-option, -X, -Y) diff --git a/scripts/Makefile.debug b/scripts/Makefile.debug index 332c486f705f..059ff38fe0cb 100644 --- a/scripts/Makefile.debug +++ b/scripts/Makefile.debug @@ -27,10 +27,14 @@ else DEBUG_RUSTFLAGS += -Cdebuginfo=2 endif -ifdef CONFIG_DEBUG_INFO_COMPRESSED +ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZLIB DEBUG_CFLAGS += -gz=zlib KBUILD_AFLAGS += -gz=zlib KBUILD_LDFLAGS += --compress-debug-sections=zlib +else ifdef CONFIG_DEBUG_INFO_COMPRESSED_ZSTD +DEBUG_CFLAGS += -gz=zstd +KBUILD_AFLAGS += -gz=zstd +KBUILD_LDFLAGS += --compress-debug-sections=zstd endif KBUILD_CFLAGS += $(DEBUG_CFLAGS) diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst index 190d781e84f4..2ab936e4179d 100644 --- a/scripts/Makefile.dtbinst +++ b/scripts/Makefile.dtbinst @@ -15,7 +15,7 @@ __dtbs_install: include include/config/auto.conf include $(srctree)/scripts/Kbuild.include -include $(src)/Makefile +include $(kbuild-file) dtbs := $(addprefix $(dst)/, $(dtb-y) $(if $(CONFIG_OF_ALL_DTBS),$(dtb-))) subdirs := $(addprefix $(obj)/, $(subdir-y) $(subdir-m)) diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn index 6bbba36c5969..40cd13eca82e 100644 --- a/scripts/Makefile.extrawarn +++ b/scripts/Makefile.extrawarn @@ -38,6 +38,7 @@ KBUILD_CFLAGS += -Wno-sign-compare KBUILD_CFLAGS += -Wno-type-limits KBUILD_CFLAGS += -Wno-shift-negative-value +KBUILD_CPPFLAGS += -Wundef KBUILD_CPPFLAGS += -DKBUILD_EXTRA_WARN1 else diff --git a/scripts/Makefile.modfinal b/scripts/Makefile.modfinal index 25bedd83644b..a30d5b08eee9 100644 --- a/scripts/Makefile.modfinal +++ b/scripts/Makefile.modfinal @@ -13,9 +13,9 @@ include $(srctree)/scripts/Kbuild.include include $(srctree)/scripts/Makefile.lib # find all modules listed in modules.order -modules := $(sort $(shell cat $(MODORDER))) +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. # --------------------------------------------------------------------------- diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index a4c987c23750..836391e5d209 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -9,7 +9,7 @@ __modinst: include include/config/auto.conf include $(srctree)/scripts/Kbuild.include -modules := $(sort $(shell cat $(MODORDER))) +modules := $(call read-file, $(MODORDER)) ifeq ($(KBUILD_EXTMOD),) dst := $(MODLIB)/kernel @@ -26,7 +26,7 @@ suffix-$(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) @: diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index e41dee64d429..5eb5e8280379 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -38,6 +38,8 @@ __modpost: include include/config/auto.conf include $(srctree)/scripts/Kbuild.include +MODPOST = scripts/mod/modpost + modpost-args = \ $(if $(CONFIG_MODVERSIONS),-m) \ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ @@ -46,6 +48,8 @@ modpost-args = \ $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ -o $@ +modpost-deps := $(MODPOST) + # 'make -i -k' ignores compile errors, and builds as many modules as possible. ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) modpost-args += -n @@ -78,12 +82,13 @@ targets += .vmlinux.objs .vmlinux.objs: vmlinux.a $(KBUILD_VMLINUX_LIBS) FORCE $(call if_changed,vmlinux_objs) -vmlinux.o-if-present := $(wildcard vmlinux.o) -output-symdump := vmlinux.symvers - -ifdef KBUILD_MODULES -output-symdump := $(if $(vmlinux.o-if-present), Module.symvers, modules-only.symvers) -missing-input := $(filter-out $(vmlinux.o-if-present),vmlinux.o) +ifeq ($(wildcard vmlinux.o),) +missing-input := vmlinux.o +output-symdump := modules-only.symvers +else +modpost-args += vmlinux.o +modpost-deps += vmlinux.o +output-symdump := $(if $(KBUILD_MODULES), Module.symvers, vmlinux.symvers) endif else @@ -93,13 +98,18 @@ obj := $(KBUILD_EXTMOD) src := $(obj) # Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS -include $(or $(wildcard $(src)/Kbuild), $(src)/Makefile) +include $(kbuild-file) -module.symvers-if-present := $(wildcard Module.symvers) output-symdump := $(KBUILD_EXTMOD)/Module.symvers -missing-input := $(filter-out $(module.symvers-if-present), Module.symvers) -modpost-args += -e $(addprefix -i ,$(module.symvers-if-present) $(KBUILD_EXTRA_SYMBOLS)) +ifeq ($(wildcard Module.symvers),) +missing-input := Module.symvers +else +modpost-args += -i Module.symvers +modpost-deps += Module.symvers +endif + +modpost-args += -e $(addprefix -i , $(KBUILD_EXTRA_SYMBOLS)) endif # ($(KBUILD_EXTMOD),) @@ -107,9 +117,10 @@ ifneq ($(KBUILD_MODPOST_WARN)$(missing-input),) modpost-args += -w endif -modorder-if-needed := $(if $(KBUILD_MODULES), $(MODORDER)) - -MODPOST = scripts/mod/modpost +ifdef KBUILD_MODULES +modpost-args += -T $(MODORDER) +modpost-deps += $(MODORDER) +endif # Read out modules.order to pass in modpost. # Otherwise, allmodconfig would fail with "Argument list too long". @@ -119,10 +130,10 @@ quiet_cmd_modpost = MODPOST $@ echo >&2 "WARNING: $(missing-input) is missing."; \ echo >&2 " Modules may not have dependencies or modversions."; \ echo >& |