diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 58 |
1 files changed, 51 insertions, 7 deletions
@@ -2,7 +2,7 @@ VERSION = 6 PATCHLEVEL = 18 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = NAME = Baby Opossum Posse # *DOCUMENTATION* @@ -810,6 +810,25 @@ ifdef CONFIG_FUNCTION_TRACER CC_FLAGS_FTRACE := -pg endif +ifdef CONFIG_TRACEPOINTS +# To check for unused tracepoints (tracepoints that are defined but never +# called), run with: +# +# make UT=1 +# +# Each unused tracepoints can take up to 5KB of memory in the running kernel. +# It is best to remove any that are not used. +# +# This command line option will be removed when all current unused +# tracepoints are removed. + +ifeq ("$(origin UT)", "command line") + WARN_ON_UNUSED_TRACEPOINTS := $(UT) +endif +endif # CONFIG_TRACEPOINTS + +export WARN_ON_UNUSED_TRACEPOINTS + include $(srctree)/arch/$(SRCARCH)/Makefile ifdef need-config @@ -940,6 +959,9 @@ KBUILD_CFLAGS += $(call cc-option,-fzero-init-padding-bits=all) # for the randomize_kstack_offset feature. Disable it for all compilers. KBUILD_CFLAGS += $(call cc-option, -fno-stack-clash-protection) +# Get details on warnings generated due to GCC value tracking. +KBUILD_CFLAGS += $(call cc-option, -fdiagnostics-show-context=2) + # Clear used registers at func exit (to reduce data lifetime and ROP gadgets). ifdef CONFIG_ZERO_CALL_USED_REGS KBUILD_CFLAGS += -fzero-call-used-regs=used-gpr @@ -1061,6 +1083,9 @@ NOSTDINC_FLAGS += -nostdinc # perform bounds checking. KBUILD_CFLAGS += $(call cc-option, -fstrict-flex-arrays=3) +# Allow including a tagged struct or union anonymously in another struct/union. +KBUILD_CFLAGS += -fms-extensions + # disable invalid "can't wrap" optimizations for signed / pointers KBUILD_CFLAGS += -fno-strict-overflow @@ -1081,7 +1106,7 @@ KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srcroot)/=) endif # include additional Makefiles when needed -include-y := scripts/Makefile.extrawarn +include-y := scripts/Makefile.warn include-$(CONFIG_DEBUG_INFO) += scripts/Makefile.debug include-$(CONFIG_DEBUG_INFO_BTF)+= scripts/Makefile.btf include-$(CONFIG_KASAN) += scripts/Makefile.kasan @@ -1134,8 +1159,17 @@ ifneq ($(CONFIG_ARCH_VMLINUX_NEEDS_RELOCS),) LDFLAGS_vmlinux += --emit-relocs --discard-none endif -# Align the bit size of userspace programs with the kernel -USERFLAGS_FROM_KERNEL := -m32 -m64 --target=% +# Align the architecture of userspace programs with the kernel +USERFLAGS_FROM_KERNEL := --target=% + +ifdef CONFIG_ARCH_USERFLAGS +KBUILD_USERCFLAGS += $(CONFIG_ARCH_USERFLAGS) +KBUILD_USERLDFLAGS += $(CONFIG_ARCH_USERFLAGS) +else +# If not overridden also inherit the bit size +USERFLAGS_FROM_KERNEL += -m32 -m64 +endif + KBUILD_USERCFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) KBUILD_USERLDFLAGS += $(filter $(USERFLAGS_FROM_KERNEL), $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) @@ -1772,6 +1806,8 @@ help: @echo ' c: extra checks in the configuration stage (Kconfig)' @echo ' e: warnings are being treated as errors' @echo ' Multiple levels can be combined with W=12 or W=123' + @echo ' make UT=1 [targets] Warn if a tracepoint is defined but not used.' + @echo ' [ This will be removed when all current unused tracepoints are eliminated. ]' @$(if $(dtstree), \ echo ' make CHECK_DTBS=1 [targets] Check all generated dtb files against schema'; \ echo ' This can be applied both to "dtbs" and to individual "foo.dtb" targets' ; \ @@ -1797,9 +1833,10 @@ $(help-board-dirs): help-%: # Documentation targets # --------------------------------------------------------------------------- -DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs htmldocs-redirects \ - epubdocs cleandocs linkcheckdocs dochelp refcheckdocs \ - texinfodocs infodocs +DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ + linkcheckdocs dochelp refcheckdocs texinfodocs infodocs mandocs \ + htmldocs-redirects + PHONY += $(DOC_TARGETS) $(DOC_TARGETS): $(Q)$(MAKE) $(build)=Documentation $@ @@ -1826,10 +1863,17 @@ rusttest: prepare $(Q)$(MAKE) $(build)=rust $@ # Formatting targets +# +# Generated files as well as vendored crates are skipped. PHONY += rustfmt rustfmtcheck rustfmt: $(Q)find $(srctree) $(RCS_FIND_IGNORE) \ + \( \ + -path $(srctree)/rust/proc-macro2 \ + -o -path $(srctree)/rust/quote \ + -o -path $(srctree)/rust/syn \ + \) -prune -o \ -type f -a -name '*.rs' -a ! -name '*generated*' -print \ | xargs $(RUSTFMT) $(rustfmt_flags) |