Pull Kbuild fixes from Masahiro Yamada: - update Kbuild and Kconfig documents - sanitize -I compiler option handling - update extract-vmlinux script to recognize LZ4 and ZSTD - fix tools Makefiles - update tags.sh to handle __ro_after_init - suppress warnings in case getconf does not recognize LFS_* parameters * tag 'kbuild-fixes-v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: suppress warnings from 'getconf LFS_*' scripts/tags.sh: add __ro_after_init tools: build: Use HOSTLDFLAGS with fixdep tools: build: Fixup host c flags tools build: fix # escaping in .cmd files for future Make scripts: teach extract-vmlinux about LZ4 and ZSTD kbuild: remove duplicated comments about PHONY kbuild: .PHONY is not a variable, but PHONY is kbuild: do not drop -I without parameter kbuild: document the KBUILD_KCONFIG env. variable kconfig: update user kconfig tools doc. kbuild: delete INSTALL_FW_PATH from kbuild documentation kbuild: update ARCH alias info for sparc kbuild: update ARCH alias info for sh
Unified · Split
| @@ -50,6 +50,11 @@ LDFLAGS_MODULE · 49 unmodified lines | ||
| 50 | 50 | -------------------------------------------------- |
| 51 | 51 | Additional options used for $(LD) when linking modules. |
| 52 | 52 | |
| 53 | +KBUILD_KCONFIG | |
| 54 | +-------------------------------------------------- | |
| 55 | +Set the top-level Kconfig file to the value of this environment | |
| 56 | +variable. The default name is "Kconfig". | |
| 57 | + | |
| 53 | 58 | KBUILD_VERBOSE |
| 54 | 59 | -------------------------------------------------- |
| 55 | 60 | Set the kbuild verbosity. Can be assigned same values as "V=...". |
| @@ -88,7 +93,8 @@ In most cases the name of the architecture is the same as the · 32 unmodified lines | ||
| 88 | 93 | directory name found in the arch/ directory. |
| 89 | 94 | But some architectures such as x86 and sparc have aliases. |
| 90 | 95 | x86: i386 for 32 bit, x86_64 for 64 bit |
| 91 | −sparc: sparc for 32 bit, sparc64 for 64 bit | |
| 96 | +sh: sh for 32 bit, sh64 for 64 bit | |
| 97 | +sparc: sparc32 for 32 bit, sparc64 for 64 bit | |
| 92 | 98 | |
| 93 | 99 | CROSS_COMPILE |
| 94 | 100 | -------------------------------------------------- |
| @@ -148,15 +154,6 @@ stripped after they are installed. If INSTALL_MOD_STRIP is '1', then · 53 unmodified lines | ||
| 148 | 154 | the default option --strip-debug will be used. Otherwise, |
| 149 | 155 | INSTALL_MOD_STRIP value will be used as the options to the strip command. |
| 150 | 156 | |
| 151 | −INSTALL_FW_PATH | |
| 152 | −-------------------------------------------------- | |
| 153 | −INSTALL_FW_PATH specifies where to install the firmware blobs. | |
| 154 | −The default value is: | |
| 155 | − | |
| 156 | − $(INSTALL_MOD_PATH)/lib/firmware | |
| 157 | − | |
| 158 | −The value can be overridden in which case the default value is ignored. | |
| 159 | − | |
| 160 | 157 | INSTALL_HDR_PATH |
| 161 | 158 | -------------------------------------------------- |
| 162 | 159 | INSTALL_HDR_PATH specifies where to install user space headers when |
| @@ -2,9 +2,9 @@ This file contains some assistance for using "make *config". · 1 unmodified line | ||
| 2 | 2 | |
| 3 | 3 | Use "make help" to list all of the possible configuration targets. |
| 4 | 4 | |
| 5 | −The xconfig ('qconf') and menuconfig ('mconf') programs also | |
| 6 | −have embedded help text. Be sure to check it for navigation, | |
| 7 | −search, and other general help text. | |
| 5 | +The xconfig ('qconf'), menuconfig ('mconf'), and nconfig ('nconf') | |
| 6 | +programs also have embedded help text. Be sure to check that for | |
| 7 | +navigation, search, and other general help text. | |
| 8 | 8 | |
| 9 | 9 | ====================================================================== |
| 10 | 10 | General |
| @@ -17,13 +17,16 @@ this happens, using a previously working .config file and running · 6 unmodified lines | ||
| 17 | 17 | for you, so you may find that you need to see what NEW kernel |
| 18 | 18 | symbols have been introduced. |
| 19 | 19 | |
| 20 | −To see a list of new config symbols when using "make oldconfig", use | |
| 20 | +To see a list of new config symbols, use | |
| 21 | 21 | |
| 22 | 22 | cp user/some/old.config .config |
| 23 | 23 | make listnewconfig |
| 24 | 24 | |
| 25 | 25 | and the config program will list any new symbols, one per line. |
| 26 | 26 | |
| 27 | +Alternatively, you can use the brute force method: | |
| 28 | + | |
| 29 | + make oldconfig | |
| 27 | 30 | scripts/diffconfig .config.old .config | less |
| 28 | 31 | |
| 29 | 32 | ______________________________________________________________________ |
| @@ -160,7 +163,7 @@ Searching in menuconfig: · 130 unmodified lines | ||
| 160 | 163 | This lists all config symbols that contain "hotplug", |
| 161 | 164 | e.g., HOTPLUG_CPU, MEMORY_HOTPLUG. |
| 162 | 165 | |
| 163 | − For search help, enter / followed TAB-TAB-TAB (to highlight | |
| 166 | + For search help, enter / followed by TAB-TAB (to highlight | |
| 164 | 167 | <Help>) and Enter. This will tell you that you can also use |
| 165 | 168 | regular expressions (regexes) in the search string, so if you |
| 166 | 169 | are not interested in MEMORY_HOTPLUG, you could try |
| @@ -202,6 +205,39 @@ Example: · 35 unmodified lines | ||
| 202 | 205 | make MENUCONFIG_MODE=single_menu menuconfig |
| 203 | 206 | |
| 204 | 207 | |
| 208 | +====================================================================== | |
| 209 | +nconfig | |
| 210 | +-------------------------------------------------- | |
| 211 | + | |
| 212 | +nconfig is an alternate text-based configurator. It lists function | |
| 213 | +keys across the bottom of the terminal (window) that execute commands. | |
| 214 | +You can also just use the corresponding numeric key to execute the | |
| 215 | +commands unless you are in a data entry window. E.g., instead of F6 | |
| 216 | +for Save, you can just press 6. | |
| 217 | + | |
| 218 | +Use F1 for Global help or F3 for the Short help menu. | |
| 219 | + | |
| 220 | +Searching in nconfig: | |
| 221 | + | |
| 222 | + You can search either in the menu entry "prompt" strings | |
| 223 | + or in the configuration symbols. | |
| 224 | + | |
| 225 | + Use / to begin a search through the menu entries. This does | |
| 226 | + not support regular expressions. Use <Down> or <Up> for | |
| 227 | + Next hit and Previous hit, respectively. Use <Esc> to | |
| 228 | + terminate the search mode. | |
| 229 | + | |
| 230 | + F8 (SymSearch) searches the configuration symbols for the | |
| 231 | + given string or regular expression (regex). | |
| 232 | + | |
| 233 | +NCONFIG_MODE | |
| 234 | +-------------------------------------------------- | |
| 235 | +This mode shows all sub-menus in one large tree. | |
| 236 | + | |
| 237 | +Example: | |
| 238 | + make NCONFIG_MODE=single_menu nconfig | |
| 239 | + | |
| 240 | + | |
| 205 | 241 | ====================================================================== |
| 206 | 242 | xconfig |
| 207 | 243 | -------------------------------------------------- |
| @@ -230,8 +266,7 @@ gconfig · 22 unmodified lines | ||
| 230 | 266 | |
| 231 | 267 | Searching in gconfig: |
| 232 | 268 | |
| 233 | − None (gconfig isn't maintained as well as xconfig or menuconfig); | |
| 234 | − however, gconfig does have a few more viewing choices than | |
| 235 | − xconfig does. | |
| 269 | + There is no search command in gconfig. However, gconfig does | |
| 270 | + have several different viewing choices, modes, and options. | |
| 236 | 271 | |
| 237 | 272 | ### |
| @@ -353,9 +353,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ · 352 unmodified lines | ||
| 353 | 353 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| 354 | 354 | else echo sh; fi ; fi) |
| 355 | 355 | |
| 356 | −HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS) | |
| 357 | −HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS) | |
| 358 | −HOST_LFS_LIBS := $(shell getconf LFS_LIBS) | |
| 356 | +HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) | |
| 357 | +HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) | |
| 358 | +HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) | |
| 359 | 359 | |
| 360 | 360 | HOSTCC = gcc |
| 361 | 361 | HOSTCXX = g++ |
| @@ -1712,6 +1712,6 @@ endif # skip-makefile · 1350 unmodified lines | ||
| 1712 | 1712 | PHONY += FORCE |
| 1713 | 1713 | FORCE: |
| 1714 | 1714 | |
| 1715 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 1715 | +# Declare the contents of the PHONY variable as phony. We keep that | |
| 1716 | 1716 | # information in a variable so we can use it in if_changed and friends. |
| 1717 | 1717 | .PHONY: $(PHONY) |
| @@ -214,7 +214,7 @@ hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj · 213 unmodified lines | ||
| 214 | 214 | # Prefix -I with $(srctree) if it is not an absolute path. |
| 215 | 215 | # skip if -I has no parameter |
| 216 | 216 | addtree = $(if $(patsubst -I%,%,$(1)), \ |
| 217 | −$(if $(filter-out -I/% -I./% -I../%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1))) | |
| 217 | +$(if $(filter-out -I/% -I./% -I../%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)),$(1)) | |
| 218 | 218 | |
| 219 | 219 | # Find all -I options and call addtree |
| 220 | 220 | flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o))) |
| @@ -590,7 +590,4 @@ endif · 589 unmodified lines | ||
| 590 | 590 | # We never want them to be removed automatically. |
| 591 | 591 | .SECONDARY: $(targets) |
| 592 | 592 | |
| 593 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 594 | −# information in a variable se we can use it in if_changed and friends. | |
| 595 | − | |
| 596 | 593 | .PHONY: $(PHONY) |
| @@ -88,7 +88,4 @@ PHONY += $(subdir-ymn) · 87 unmodified lines | ||
| 88 | 88 | $(subdir-ymn): |
| 89 | 89 | $(Q)$(MAKE) $(clean)=$@ |
| 90 | 90 | |
| 91 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 92 | −# information in a variable se we can use it in if_changed and friends. | |
| 93 | − | |
| 94 | 91 | .PHONY: $(PHONY) |
| @@ -54,8 +54,4 @@ PHONY += $(subdir-ym) · 53 unmodified lines | ||
| 54 | 54 | $(subdir-ym): |
| 55 | 55 | $(Q)$(MAKE) $(modbuiltin)=$@ |
| 56 | 56 | |
| 57 | − | |
| 58 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 59 | −# information in a variable se we can use it in if_changed and friends. | |
| 60 | − | |
| 61 | 57 | .PHONY: $(PHONY) |
| @@ -35,8 +35,4 @@ modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D)) · 34 unmodified lines | ||
| 35 | 35 | $(modules): |
| 36 | 36 | $(call cmd,modules_install,$(MODLIB)/$(modinst_dir)) |
| 37 | 37 | |
| 38 | − | |
| 39 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 40 | −# information in a variable so we can use it in if_changed and friends. | |
| 41 | − | |
| 42 | 38 | .PHONY: $(PHONY) |
| @@ -149,8 +149,4 @@ ifneq ($(cmd_files),) · 148 unmodified lines | ||
| 149 | 149 | include $(cmd_files) |
| 150 | 150 | endif |
| 151 | 151 | |
| 152 | − | |
| 153 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 154 | −# information in a variable se we can use it in if_changed and friends. | |
| 155 | − | |
| 156 | 152 | .PHONY: $(PHONY) |
| @@ -27,7 +27,4 @@ modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D)) · 26 unmodified lines | ||
| 27 | 27 | $(modules): |
| 28 | 28 | $(call cmd,sign_ko,$(MODLIB)/$(modinst_dir)) |
| 29 | 29 | |
| 30 | −# Declare the contents of the .PHONY variable as phony. We keep that | |
| 31 | −# information in a variable se we can use it in if_changed and friends. | |
| 32 | − | |
| 33 | 30 | .PHONY: $(PHONY) |
| @@ -57,6 +57,8 @@ try_decompress '\3757zXZ\000' abcde unxz · 56 unmodified lines | ||
| 57 | 57 | try_decompress 'BZh' xy bunzip2 |
| 58 | 58 | try_decompress '\135\0\0\0' xxx unlzma |
| 59 | 59 | try_decompress '\211\114\132' xy 'lzop -d' |
| 60 | +try_decompress '\002!L\030' xxx 'lz4 -d' | |
| 61 | +try_decompress '(\265/\375' xxx unzstd | |
| 60 | 62 | |
| 61 | 63 | # Bail out: |
| 62 | 64 | echo "$me: Cannot find vmlinux." >&2 |
| @@ -245,7 +245,7 @@ exuberant() · 244 unmodified lines | ||
| 245 | 245 | { |
| 246 | 246 | setup_regex exuberant asm c |
| 247 | 247 | all_target_sources | xargs $1 -a \ |
| 248 | − -I __initdata,__exitdata,__initconst, \ | |
| 248 | + -I __initdata,__exitdata,__initconst,__ro_after_init \ | |
| 249 | 249 | -I __initdata_memblock \ |
| 250 | 250 | -I __refdata,__attribute,__maybe_unused,__always_unused \ |
| 251 | 251 | -I __acquires,__releases,__deprecated \ |
| @@ -63,8 +63,8 @@ dep-cmd = $(if $(wildcard $(fixdep)), · 62 unmodified lines | ||
| 63 | 63 | $(fixdep) $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp; \ |
| 64 | 64 | rm -f $(depfile); \ |
| 65 | 65 | mv -f $(dot-target).tmp $(dot-target).cmd, \ |
| 66 | − printf '\# cannot find fixdep (%s)\n' $(fixdep) > $(dot-target).cmd; \ | |
| 67 | − printf '\# using basic dep data\n\n' >> $(dot-target).cmd; \ | |
| 66 | + printf '$(pound) cannot find fixdep (%s)\n' $(fixdep) > $(dot-target).cmd; \ | |
| 67 | + printf '$(pound) using basic dep data\n\n' >> $(dot-target).cmd; \ | |
| 68 | 68 | cat $(depfile) >> $(dot-target).cmd; \ |
| 69 | 69 | printf '\n%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd) |
| 70 | 70 | |
| @@ -98,4 +98,4 @@ cxx_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CXXFLAGS) -D"BUILD_STR(s)=\#s" $(CXX · 27 unmodified lines | ||
| 98 | 98 | ### |
| 99 | 99 | ## HOSTCC C flags |
| 100 | 100 | |
| 101 | −host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CHOSTFLAGS) -D"BUILD_STR(s)=\#s" $(CHOSTFLAGS_$(basetarget).o) $(CHOSTFLAGS_$(obj)) | |
| 101 | +host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(HOSTCFLAGS) -D"BUILD_STR(s)=\#s" $(HOSTCFLAGS_$(basetarget).o) $(HOSTCFLAGS_$(obj)) | |
| @@ -43,7 +43,7 @@ $(OUTPUT)fixdep-in.o: FORCE · 42 unmodified lines | ||
| 43 | 43 | $(Q)$(MAKE) $(build)=fixdep |
| 44 | 44 | |
| 45 | 45 | $(OUTPUT)fixdep: $(OUTPUT)fixdep-in.o |
| 46 | − $(QUIET_LINK)$(HOSTCC) $(LDFLAGS) -o $@ $< | |
| 46 | + $(QUIET_LINK)$(HOSTCC) $(HOSTLDFLAGS) -o $@ $< | |
| 47 | 47 | |
| 48 | 48 | FORCE: |
| 49 | 49 | |
| @@ -1,7 +1,7 @@ | ||
| 1 | 1 | hostprogs := jevents |
| 2 | 2 | |
| 3 | 3 | jevents-y += json.o jsmn.o jevents.o |
| 4 | −CHOSTFLAGS_jevents.o = -I$(srctree)/tools/include | |
| 4 | +HOSTCFLAGS_jevents.o = -I$(srctree)/tools/include | |
| 5 | 5 | pmu-events-y += pmu-events.o |
| 6 | 6 | JDIR = pmu-events/arch/$(SRCARCH) |
| 7 | 7 | JSON = $(shell [ -d $(JDIR) ] && \ |