Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
Linus Torvalds | 568035b | 2022-08-14 15:50:18 -0700 | [diff] [blame] | 2 | VERSION = 6 |
Linus Torvalds | 8400291 | 2024-07-28 14:19:55 -0700 | [diff] [blame] | 3 | PATCHLEVEL = 11 |
Linus Torvalds | 55922c9 | 2011-05-29 17:43:36 -0700 | [diff] [blame] | 4 | SUBLEVEL = 0 |
Linus Torvalds | 7c626ce | 2024-08-11 14:27:14 -0700 | [diff] [blame] | 5 | EXTRAVERSION = -rc3 |
Linus Torvalds | 1613e60 | 2024-05-26 15:20:12 -0700 | [diff] [blame] | 6 | NAME = Baby Opossum Posse |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | |
| 8 | # *DOCUMENTATION* |
| 9 | # To see a list of typical targets execute "make help" |
| 10 | # More info can be located in ./README |
| 11 | # Comments in this file are targeted only to the developer, do not |
| 12 | # expect to learn how to build the kernel reading this file. |
| 13 | |
Masahiro Yamada | 5f99665 | 2024-07-04 22:47:55 +0900 | [diff] [blame] | 14 | ifeq ($(filter output-sync,$(.FEATURES)),) |
| 15 | $(error GNU Make >= 4.0 is required. Your Make version is $(MAKE_VERSION)) |
Masahiro Yamada | 87d599f | 2022-12-13 20:24:20 +0900 | [diff] [blame] | 16 | endif |
| 17 | |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 18 | $(if $(filter __%, $(MAKECMDGOALS)), \ |
| 19 | $(error targets prefixed with '__' are only for internal use)) |
| 20 | |
Masahiro Yamada | ba634ec | 2017-10-04 12:56:05 +0900 | [diff] [blame] | 21 | # That's our default target when none is given on the command line |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 22 | PHONY := __all |
| 23 | __all: |
Masahiro Yamada | ba634ec | 2017-10-04 12:56:05 +0900 | [diff] [blame] | 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | # We are using a recursive build, so we need to do a little thinking |
| 26 | # to get the ordering right. |
| 27 | # |
| 28 | # Most importantly: sub-Makefiles should only ever modify files in |
| 29 | # their own directory. If in some directory we have a dependency on |
| 30 | # a file in another dir (which doesn't happen often, but it's often |
Nicholas Piggin | f49821e | 2018-02-11 00:25:04 +1000 | [diff] [blame] | 31 | # unavoidable when linking the built-in.a targets which finally |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | # turn into vmlinux), we will call a sub make in that other dir, and |
| 33 | # after that we are sure that everything which is in that other dir |
| 34 | # is now up to date. |
| 35 | # |
| 36 | # The only cases where we need to modify files which have global |
| 37 | # effects are thus separated out and done before the recursive |
| 38 | # descending is started. They are now explicitly listed as the |
| 39 | # prepare rule. |
| 40 | |
Masahiro Yamada | 5fa94ce | 2023-06-27 08:30:12 +0900 | [diff] [blame] | 41 | this-makefile := $(lastword $(MAKEFILE_LIST)) |
Masahiro Yamada | e2bad14 | 2024-03-06 19:42:22 +0900 | [diff] [blame] | 42 | abs_srctree := $(realpath $(dir $(this-makefile))) |
| 43 | abs_objtree := $(CURDIR) |
Masahiro Yamada | 5fa94ce | 2023-06-27 08:30:12 +0900 | [diff] [blame] | 44 | |
Masahiro Yamada | 221cc2d | 2019-03-26 13:02:19 +0900 | [diff] [blame] | 45 | ifneq ($(sub_make_done),1) |
Masahiro Yamada | 3812b8c | 2019-02-22 16:40:07 +0900 | [diff] [blame] | 46 | |
| 47 | # Do not use make's built-in rules and variables |
| 48 | # (this increases performance and avoids hard-to-debug behaviour) |
| 49 | MAKEFLAGS += -rR |
| 50 | |
| 51 | # Avoid funny character set dependencies |
| 52 | unexport LC_ALL |
| 53 | LC_COLLATE=C |
| 54 | LC_NUMERIC=C |
| 55 | export LC_COLLATE LC_NUMERIC |
| 56 | |
| 57 | # Avoid interference with shell env settings |
| 58 | unexport GREP_OPTIONS |
| 59 | |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 60 | # Beautify output |
| 61 | # --------------------------------------------------------------------------- |
| 62 | # |
Masahiro Yamada | 8962b6b | 2022-12-23 01:25:32 +0900 | [diff] [blame] | 63 | # Most of build commands in Kbuild start with "cmd_". You can optionally define |
| 64 | # "quiet_cmd_*". If defined, the short log is printed. Otherwise, no log from |
| 65 | # that command is printed by default. |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 66 | # |
Masahiro Yamada | 8962b6b | 2022-12-23 01:25:32 +0900 | [diff] [blame] | 67 | # e.g.) |
| 68 | # quiet_cmd_depmod = DEPMOD $(MODLIB) |
| 69 | # cmd_depmod = $(srctree)/scripts/depmod.sh $(DEPMOD) $(KERNELRELEASE) |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 70 | # |
| 71 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 72 | # for commands that shall be hidden in non-verbose mode. |
| 73 | # |
Masahiro Yamada | 8962b6b | 2022-12-23 01:25:32 +0900 | [diff] [blame] | 74 | # $(Q)$(MAKE) $(build)=scripts/basic |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 75 | # |
Masahiro Yamada | 6ae4b98 | 2022-12-23 01:25:34 +0900 | [diff] [blame] | 76 | # If KBUILD_VERBOSE contains 1, the whole command is echoed. |
| 77 | # If KBUILD_VERBOSE contains 2, the reason for rebuilding is printed. |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 78 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | # To put more focus on warnings, be less verbose as default |
| 80 | # Use 'make V=1' to see the full commands |
| 81 | |
Cheng Renquan | b8b0618 | 2009-05-26 16:03:07 +0800 | [diff] [blame] | 82 | ifeq ("$(origin V)", "command line") |
| 83 | KBUILD_VERBOSE = $(V) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
Masahiro Yamada | 6ae4b98 | 2022-12-23 01:25:34 +0900 | [diff] [blame] | 86 | quiet = quiet_ |
| 87 | Q = @ |
| 88 | |
| 89 | ifneq ($(findstring 1, $(KBUILD_VERBOSE)),) |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 90 | quiet = |
| 91 | Q = |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 92 | endif |
| 93 | |
| 94 | # If the user is running make -s (silent mode), suppress echoing of |
| 95 | # commands |
Masahiro Yamada | 5f99665 | 2024-07-04 22:47:55 +0900 | [diff] [blame] | 96 | ifneq ($(findstring s,$(firstword -$(MAKEFLAGS))),) |
Dmitry Goncharov | 4bf7358 | 2022-12-05 16:48:19 -0500 | [diff] [blame] | 97 | quiet=silent_ |
Masahiro Yamada | 83d98d7 | 2022-12-23 01:25:35 +0900 | [diff] [blame] | 98 | override KBUILD_VERBOSE := |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 99 | endif |
Michal Marek | 066b7ed | 2014-07-04 14:29:30 +0200 | [diff] [blame] | 100 | |
| 101 | export quiet Q KBUILD_VERBOSE |
| 102 | |
Masahiro Yamada | bcf637f | 2021-02-22 01:53:06 +0900 | [diff] [blame] | 103 | # Call a source code checker (by default, "sparse") as part of the |
| 104 | # C compilation. |
| 105 | # |
| 106 | # Use 'make C=1' to enable checking of only re-compiled files. |
| 107 | # Use 'make C=2' to enable checking of *all* source files, regardless |
| 108 | # of whether they are re-compiled or not. |
| 109 | # |
| 110 | # See the file "Documentation/dev-tools/sparse.rst" for more details, |
| 111 | # including where to get the "sparse" utility. |
| 112 | |
| 113 | ifeq ("$(origin C)", "command line") |
| 114 | KBUILD_CHECKSRC = $(C) |
| 115 | endif |
| 116 | ifndef KBUILD_CHECKSRC |
| 117 | KBUILD_CHECKSRC = 0 |
| 118 | endif |
| 119 | |
| 120 | export KBUILD_CHECKSRC |
| 121 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 122 | # Enable "clippy" (a linter) as part of the Rust compilation. |
| 123 | # |
| 124 | # Use 'make CLIPPY=1' to enable it. |
| 125 | ifeq ("$(origin CLIPPY)", "command line") |
| 126 | KBUILD_CLIPPY := $(CLIPPY) |
| 127 | endif |
| 128 | |
| 129 | export KBUILD_CLIPPY |
| 130 | |
Masahiro Yamada | bcf637f | 2021-02-22 01:53:06 +0900 | [diff] [blame] | 131 | # Use make M=dir or set the environment variable KBUILD_EXTMOD to specify the |
| 132 | # directory of external module to build. Setting M= takes precedence. |
| 133 | ifeq ("$(origin M)", "command line") |
| 134 | KBUILD_EXTMOD := $(M) |
| 135 | endif |
| 136 | |
| 137 | $(if $(word 2, $(KBUILD_EXTMOD)), \ |
| 138 | $(error building multiple external modules is not supported)) |
| 139 | |
Masahiro Yamada | 9a68fd7 | 2022-07-14 14:02:42 +0900 | [diff] [blame] | 140 | $(foreach x, % :, $(if $(findstring $x, $(KBUILD_EXTMOD)), \ |
| 141 | $(error module directory path cannot contain '$x'))) |
| 142 | |
Masahiro Yamada | 74ee585 | 2021-06-02 23:02:13 +0900 | [diff] [blame] | 143 | # Remove trailing slashes |
| 144 | ifneq ($(filter %/, $(KBUILD_EXTMOD)),) |
| 145 | KBUILD_EXTMOD := $(shell dirname $(KBUILD_EXTMOD).) |
| 146 | endif |
| 147 | |
Masahiro Yamada | bcf637f | 2021-02-22 01:53:06 +0900 | [diff] [blame] | 148 | export KBUILD_EXTMOD |
| 149 | |
Masahiro Yamada | 92ef432 | 2023-11-23 18:05:40 +0900 | [diff] [blame] | 150 | # backward compatibility |
| 151 | KBUILD_EXTRA_WARN ?= $(KBUILD_ENABLE_EXTRA_GCC_CHECKS) |
| 152 | |
| 153 | ifeq ("$(origin W)", "command line") |
| 154 | KBUILD_EXTRA_WARN := $(W) |
| 155 | endif |
| 156 | |
| 157 | export KBUILD_EXTRA_WARN |
| 158 | |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 159 | # Kbuild will save output files in the current working directory. |
| 160 | # This does not need to match to the root of the kernel source tree. |
| 161 | # |
| 162 | # For example, you can do this: |
| 163 | # |
| 164 | # cd /dir/to/store/output/files; make -f /dir/to/kernel/source/Makefile |
| 165 | # |
| 166 | # If you want to save output files in a different location, there are |
| 167 | # two syntaxes to specify it. |
| 168 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | # 1) O= |
| 170 | # Use "make O=dir/to/store/output/files/" |
Sam Ravnborg | 070b98b | 2006-06-25 00:07:55 +0200 | [diff] [blame] | 171 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | # 2) Set KBUILD_OUTPUT |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 173 | # Set the environment variable KBUILD_OUTPUT to point to the output directory. |
| 174 | # export KBUILD_OUTPUT=dir/to/store/output/files/; make |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | # |
| 176 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
| 177 | # variable. |
| 178 | |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 179 | # Do we want to change the working directory? |
Cheng Renquan | b8b0618 | 2009-05-26 16:03:07 +0800 | [diff] [blame] | 180 | ifeq ("$(origin O)", "command line") |
| 181 | KBUILD_OUTPUT := $(O) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | endif |
| 183 | |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 184 | ifneq ($(KBUILD_OUTPUT),) |
Masahiro Yamada | 7beba04 | 2023-12-16 01:06:37 +0900 | [diff] [blame] | 185 | # $(realpath ...) gets empty if the path does not exist. Run 'mkdir -p' first. |
| 186 | $(shell mkdir -p "$(KBUILD_OUTPUT)") |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 187 | # $(realpath ...) resolves symlinks |
Masahiro Yamada | 7beba04 | 2023-12-16 01:06:37 +0900 | [diff] [blame] | 188 | abs_objtree := $(realpath $(KBUILD_OUTPUT)) |
| 189 | $(if $(abs_objtree),,$(error failed to create output directory "$(KBUILD_OUTPUT)")) |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 190 | endif # ifneq ($(KBUILD_OUTPUT),) |
| 191 | |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 192 | ifneq ($(words $(subst :, ,$(abs_srctree))), 1) |
| 193 | $(error source directory cannot contain spaces or colons) |
| 194 | endif |
| 195 | |
Masahiro Yamada | 221cc2d | 2019-03-26 13:02:19 +0900 | [diff] [blame] | 196 | export sub_make_done := 1 |
| 197 | |
Masahiro Yamada | 5fc10e7 | 2023-06-27 08:30:13 +0900 | [diff] [blame] | 198 | endif # sub_make_done |
| 199 | |
| 200 | ifeq ($(abs_objtree),$(CURDIR)) |
| 201 | # Suppress "Entering directory ..." if we are at the final work directory. |
| 202 | no-print-directory := --no-print-directory |
| 203 | else |
| 204 | # Recursion to show "Entering directory ..." |
| 205 | need-sub-make := 1 |
| 206 | endif |
| 207 | |
| 208 | ifeq ($(filter --no-print-directory, $(MAKEFLAGS)),) |
| 209 | # If --no-print-directory is unset, recurse once again to set it. |
| 210 | # You may end up recursing into __sub-make twice. This is needed due to the |
| 211 | # behavior change in GNU Make 4.4.1. |
| 212 | need-sub-make := 1 |
| 213 | endif |
| 214 | |
Masahiro Yamada | 688931a | 2019-03-19 13:02:36 +0900 | [diff] [blame] | 215 | ifeq ($(need-sub-make),1) |
| 216 | |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 217 | PHONY += $(MAKECMDGOALS) __sub-make |
Milton Miller | 0b35786 | 2007-09-21 18:09:02 -0500 | [diff] [blame] | 218 | |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 219 | $(filter-out $(this-makefile), $(MAKECMDGOALS)) __all: __sub-make |
Charles Keepax | 16f8909 | 2012-10-15 13:49:12 +0100 | [diff] [blame] | 220 | @: |
Milton Miller | 0b35786 | 2007-09-21 18:09:02 -0500 | [diff] [blame] | 221 | |
Cao jin | c4e6fff | 2017-06-30 10:45:43 +0800 | [diff] [blame] | 222 | # Invoke a second make in the output directory, passing relevant variables |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 223 | __sub-make: |
Masahiro Yamada | 5fc10e7 | 2023-06-27 08:30:13 +0900 | [diff] [blame] | 224 | $(Q)$(MAKE) $(no-print-directory) -C $(abs_objtree) \ |
| 225 | -f $(abs_srctree)/Makefile $(MAKECMDGOALS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | |
Masahiro Yamada | 5fc10e7 | 2023-06-27 08:30:13 +0900 | [diff] [blame] | 227 | else # need-sub-make |
Masahiro Yamada | 688931a | 2019-03-19 13:02:36 +0900 | [diff] [blame] | 228 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | # We process the rest of the Makefile if this is the final invocation of make |
Masahiro Yamada | 7ff5257 | 2014-09-09 20:02:22 +0900 | [diff] [blame] | 230 | |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 231 | ifeq ($(abs_srctree),$(abs_objtree)) |
Michal Marek | 9da0763 | 2014-04-25 23:25:18 +0200 | [diff] [blame] | 232 | # building in the source tree |
| 233 | srctree := . |
Masahiro Yamada | 051f278 | 2019-07-06 12:07:12 +0900 | [diff] [blame] | 234 | building_out_of_srctree := |
Michal Marek | 9da0763 | 2014-04-25 23:25:18 +0200 | [diff] [blame] | 235 | else |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 236 | ifeq ($(abs_srctree)/,$(dir $(abs_objtree))) |
Michal Marek | 9da0763 | 2014-04-25 23:25:18 +0200 | [diff] [blame] | 237 | # building in a subdirectory of the source tree |
| 238 | srctree := .. |
| 239 | else |
Masahiro Yamada | 25b146c5 | 2019-03-30 21:04:14 +0900 | [diff] [blame] | 240 | srctree := $(abs_srctree) |
Michal Marek | 9da0763 | 2014-04-25 23:25:18 +0200 | [diff] [blame] | 241 | endif |
Masahiro Yamada | 051f278 | 2019-07-06 12:07:12 +0900 | [diff] [blame] | 242 | building_out_of_srctree := 1 |
Michal Marek | 9da0763 | 2014-04-25 23:25:18 +0200 | [diff] [blame] | 243 | endif |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 244 | |
Masahiro Yamada | 95fd3f8 | 2019-07-06 12:07:13 +0900 | [diff] [blame] | 245 | ifneq ($(KBUILD_ABS_SRCTREE),) |
| 246 | srctree := $(abs_srctree) |
| 247 | endif |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 248 | |
Michal Marek | 7e1c047 | 2014-04-25 17:29:45 +0200 | [diff] [blame] | 249 | objtree := . |
Masahiro Yamada | b1992c3 | 2024-04-27 23:55:02 +0900 | [diff] [blame] | 250 | |
| 251 | VPATH := |
| 252 | |
| 253 | ifeq ($(KBUILD_EXTMOD),) |
| 254 | ifdef building_out_of_srctree |
Masahiro Yamada | 6b12de6 | 2019-02-22 16:40:09 +0900 | [diff] [blame] | 255 | VPATH := $(srctree) |
Masahiro Yamada | b1992c3 | 2024-04-27 23:55:02 +0900 | [diff] [blame] | 256 | endif |
| 257 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
Masahiro Yamada | 051f278 | 2019-07-06 12:07:12 +0900 | [diff] [blame] | 259 | export building_out_of_srctree srctree objtree VPATH |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 261 | # To make sure we do not include .config for any of the *config targets |
| 262 | # catch them early, and hand them over to scripts/kconfig/Makefile |
| 263 | # It is allowed to specify more targets when calling make, including |
| 264 | # mixing *config targets and build targets. |
| 265 | # For example 'make oldconfig all'. |
| 266 | # Detect when mixed targets is specified, and make a second invocation |
| 267 | # of make so .config is not included in this case either (for *config). |
| 268 | |
| 269 | version_h := include/generated/uapi/linux/version.h |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 270 | |
Masahiro Yamada | 22340a0 | 2018-02-11 17:40:29 +0900 | [diff] [blame] | 271 | clean-targets := %clean mrproper cleandocs |
| 272 | no-dot-config-targets := $(clean-targets) \ |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 273 | cscope gtags TAGS tags help% %docs check% coccicheck \ |
Masahiro Yamada | 59b2bd0 | 2019-06-04 19:14:02 +0900 | [diff] [blame] | 274 | $(version_h) headers headers_% archheaders archscripts \ |
David Engraf | 4623980 | 2020-03-26 20:29:33 +0100 | [diff] [blame] | 275 | %asm-generic kernelversion %src-pkg dt_binding_check \ |
Masahiro Yamada | 05e96e9 | 2023-03-16 00:50:18 +0900 | [diff] [blame] | 276 | outputmakefile rustavailable rustfmt rustfmtcheck |
Masahiro Yamada | eb931e1 | 2023-08-23 20:50:42 +0900 | [diff] [blame] | 277 | no-sync-config-targets := $(no-dot-config-targets) %install modules_sign kernelrelease \ |
Masahiro Yamada | 993bdde | 2021-02-28 15:10:25 +0900 | [diff] [blame] | 278 | image_name |
Masahiro Yamada | aa4847d | 2022-12-29 21:16:42 +0900 | [diff] [blame] | 279 | single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.rsi %.s %.symtypes %/ |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 280 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 281 | config-build := |
| 282 | mixed-build := |
| 283 | need-config := 1 |
| 284 | may-sync-config := 1 |
Masahiro Yamada | 394053f | 2019-08-15 00:19:18 +0900 | [diff] [blame] | 285 | single-build := |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 286 | |
| 287 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 288 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 289 | need-config := |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 290 | endif |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 291 | endif |
| 292 | |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 293 | ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 294 | ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 295 | may-sync-config := |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 296 | endif |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 297 | endif |
| 298 | |
Masahiro Yamada | 9d36117 | 2023-10-14 19:54:36 +0900 | [diff] [blame] | 299 | need-compiler := $(may-sync-config) |
| 300 | |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 301 | ifneq ($(KBUILD_EXTMOD),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 302 | may-sync-config := |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 303 | endif |
| 304 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 305 | ifeq ($(KBUILD_EXTMOD),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 306 | ifneq ($(filter %config,$(MAKECMDGOALS)),) |
| 307 | config-build := 1 |
| 308 | ifneq ($(words $(MAKECMDGOALS)),1) |
| 309 | mixed-build := 1 |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 310 | endif |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 311 | endif |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 312 | endif |
Masahiro Yamada | 22340a0 | 2018-02-11 17:40:29 +0900 | [diff] [blame] | 313 | |
Masahiro Yamada | 394053f | 2019-08-15 00:19:18 +0900 | [diff] [blame] | 314 | # We cannot build single targets and the others at the same time |
| 315 | ifneq ($(filter $(single-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 316 | single-build := 1 |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 317 | ifneq ($(filter-out $(single-targets), $(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 318 | mixed-build := 1 |
Masahiro Yamada | 3b9ab24 | 2024-02-02 10:31:42 +0900 | [diff] [blame] | 319 | endif |
Masahiro Yamada | 394053f | 2019-08-15 00:19:18 +0900 | [diff] [blame] | 320 | endif |
| 321 | |
Masahiro Yamada | 22340a0 | 2018-02-11 17:40:29 +0900 | [diff] [blame] | 322 | # For "make -j clean all", "make -j mrproper defconfig all", etc. |
| 323 | ifneq ($(filter $(clean-targets),$(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 324 | ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),) |
| 325 | mixed-build := 1 |
| 326 | endif |
Masahiro Yamada | 22340a0 | 2018-02-11 17:40:29 +0900 | [diff] [blame] | 327 | endif |
| 328 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 329 | # install and modules_install need also be processed one by one |
| 330 | ifneq ($(filter install,$(MAKECMDGOALS)),) |
Masahiro Yamada | 50a3399 | 2024-03-01 20:21:07 +0900 | [diff] [blame] | 331 | ifneq ($(filter modules_install,$(MAKECMDGOALS)),) |
| 332 | mixed-build := 1 |
| 333 | endif |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 334 | endif |
| 335 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 336 | ifdef mixed-build |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 337 | # =========================================================================== |
| 338 | # We're called with mixed targets (*config and build targets). |
| 339 | # Handle them one by one. |
| 340 | |
| 341 | PHONY += $(MAKECMDGOALS) __build_one_by_one |
| 342 | |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 343 | $(MAKECMDGOALS): __build_one_by_one |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 344 | @: |
| 345 | |
| 346 | __build_one_by_one: |
| 347 | $(Q)set -e; \ |
| 348 | for i in $(MAKECMDGOALS); do \ |
| 349 | $(MAKE) -f $(srctree)/Makefile $$i; \ |
| 350 | done |
| 351 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 352 | else # !mixed-build |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 353 | |
Masahiro Yamada | 3204a7f | 2021-02-28 15:10:26 +0900 | [diff] [blame] | 354 | include $(srctree)/scripts/Kbuild.include |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 355 | |
| 356 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
Masahiro Yamada | 6768fa4 | 2022-12-11 11:54:47 +0900 | [diff] [blame] | 357 | KERNELRELEASE = $(call read-file, include/config/kernel.release) |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 358 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
| 359 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
| 360 | |
Masahiro Yamada | 3204a7f | 2021-02-28 15:10:26 +0900 | [diff] [blame] | 361 | include $(srctree)/scripts/subarch.include |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | |
| 363 | # Cross compiling and selecting different set of gcc/bin-utils |
| 364 | # --------------------------------------------------------------------------- |
| 365 | # |
| 366 | # When performing cross compilation for other architectures ARCH shall be set |
| 367 | # to the target architecture. (See arch/* for the possibilities). |
| 368 | # ARCH can be set during invocation of make: |
Ard Biesheuvel | 9448349 | 2023-01-13 18:32:57 +0100 | [diff] [blame] | 369 | # make ARCH=arm64 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | # Another way is to have ARCH set in the environment. |
| 371 | # The default ARCH is the host where make is executed. |
| 372 | |
| 373 | # CROSS_COMPILE specify the prefix used for all executables used |
| 374 | # during compilation. Only gcc and related bin-utils executables |
| 375 | # are prefixed with $(CROSS_COMPILE). |
| 376 | # CROSS_COMPILE can be set on the command line |
Ard Biesheuvel | 9448349 | 2023-01-13 18:32:57 +0100 | [diff] [blame] | 377 | # make CROSS_COMPILE=aarch64-linux-gnu- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | # Alternatively CROSS_COMPILE can be set in the environment. |
| 379 | # Default value for CROSS_COMPILE is not to prefix executables |
| 380 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
Sam Ravnborg | 2331d1a | 2009-10-11 23:22:58 +0200 | [diff] [blame] | 381 | ARCH ?= $(SUBARCH) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | |
| 383 | # Architecture as present in compile.h |
Thomas Gleixner | 6752ed9 | 2007-10-11 11:11:36 +0200 | [diff] [blame] | 384 | UTS_MACHINE := $(ARCH) |
| 385 | SRCARCH := $(ARCH) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
Sam Ravnborg | d746d64 | 2007-11-12 20:14:19 +0100 | [diff] [blame] | 387 | # Additional ARCH settings for x86 |
| 388 | ifeq ($(ARCH),i386) |
| 389 | SRCARCH := x86 |
| 390 | endif |
| 391 | ifeq ($(ARCH),x86_64) |
| 392 | SRCARCH := x86 |
| 393 | endif |
Sam Ravnborg | 74b469f | 2007-10-25 19:42:04 +0200 | [diff] [blame] | 394 | |
Sam Ravnborg | 5e53879 | 2008-12-02 23:17:12 -0800 | [diff] [blame] | 395 | # Additional ARCH settings for sparc |
Namhyung Kim | e69f58c | 2010-10-25 05:48:23 +0000 | [diff] [blame] | 396 | ifeq ($(ARCH),sparc32) |
| 397 | SRCARCH := sparc |
| 398 | endif |
Sam Ravnborg | a439fe5 | 2008-07-27 23:00:59 +0200 | [diff] [blame] | 399 | ifeq ($(ARCH),sparc64) |
Sam Ravnborg | 5e53879 | 2008-12-02 23:17:12 -0800 | [diff] [blame] | 400 | SRCARCH := sparc |
Sam Ravnborg | a439fe5 | 2008-07-27 23:00:59 +0200 | [diff] [blame] | 401 | endif |
Sam Ravnborg | 2fb9b1b | 2008-06-21 00:24:17 +0200 | [diff] [blame] | 402 | |
Masahiro Yamada | 5f6e0fe0 | 2021-06-10 11:03:31 +0900 | [diff] [blame] | 403 | # Additional ARCH settings for parisc |
| 404 | ifeq ($(ARCH),parisc64) |
| 405 | SRCARCH := parisc |
| 406 | endif |
| 407 | |
Masahiro Yamada | f02aa48 | 2021-04-10 23:31:58 +0900 | [diff] [blame] | 408 | export cross_compiling := |
| 409 | ifneq ($(SRCARCH),$(SUBARCH)) |
| 410 | cross_compiling := 1 |
| 411 | endif |
| 412 | |
Roman Zippel | 14cdd3c | 2006-06-08 22:12:51 -0700 | [diff] [blame] | 413 | KCONFIG_CONFIG ?= .config |
Ben Gardiner | 41263fc | 2010-12-14 11:39:44 -0500 | [diff] [blame] | 414 | export KCONFIG_CONFIG |
Roman Zippel | 14cdd3c | 2006-06-08 22:12:51 -0700 | [diff] [blame] | 415 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | # SHELL used by kbuild |
Masahiro Yamada | 858805b | 2019-08-25 22:28:37 +0900 | [diff] [blame] | 417 | CONFIG_SHELL := sh |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | |
Masahiro Yamada | 6d79a7b | 2018-07-12 19:38:36 +0900 | [diff] [blame] | 419 | HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) |
| 420 | HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) |
| 421 | HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) |
Uwe Kleine-König | d7f14c6 | 2017-07-09 20:02:36 +0200 | [diff] [blame] | 422 | |
Masahiro Yamada | a0d1c95 | 2020-04-08 10:36:23 +0900 | [diff] [blame] | 423 | ifneq ($(LLVM),) |
Nathan Chancellor | e9c2819 | 2022-03-04 10:08:14 -0700 | [diff] [blame] | 424 | ifneq ($(filter %/,$(LLVM)),) |
| 425 | LLVM_PREFIX := $(LLVM) |
| 426 | else ifneq ($(filter -%,$(LLVM)),) |
| 427 | LLVM_SUFFIX := $(LLVM) |
| 428 | endif |
| 429 | |
| 430 | HOSTCC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX) |
| 431 | HOSTCXX = $(LLVM_PREFIX)clang++$(LLVM_SUFFIX) |
Masahiro Yamada | a0d1c95 | 2020-04-08 10:36:23 +0900 | [diff] [blame] | 432 | else |
| 433 | HOSTCC = gcc |
| 434 | HOSTCXX = g++ |
| 435 | endif |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 436 | HOSTRUSTC = rustc |
Chun-Tse Shao | d5ea4fe | 2022-04-01 23:18:02 +0000 | [diff] [blame] | 437 | HOSTPKG_CONFIG = pkg-config |
Masahiro Yamada | 7f3a59d | 2020-04-29 12:45:14 +0900 | [diff] [blame] | 438 | |
Elliot Berman | f67695c9 | 2022-02-01 13:35:42 -0800 | [diff] [blame] | 439 | KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \ |
Peter Zijlstra | b5ec6fd | 2023-06-09 11:28:30 +0200 | [diff] [blame] | 440 | -O2 -fomit-frame-pointer -std=gnu11 |
Elliot Berman | f67695c9 | 2022-02-01 13:35:42 -0800 | [diff] [blame] | 441 | KBUILD_USERCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS) |
| 442 | KBUILD_USERLDFLAGS := $(USERLDFLAGS) |
Masahiro Yamada | 7f3a59d | 2020-04-29 12:45:14 +0900 | [diff] [blame] | 443 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 444 | # These flags apply to all Rust code in the tree, including the kernel and |
| 445 | # host programs. |
| 446 | export rust_common_flags := --edition=2021 \ |
| 447 | -Zbinary_dep_depinfo=y \ |
Miguel Ojeda | f8f88aa | 2024-07-09 18:05:59 +0200 | [diff] [blame] | 448 | -Dunsafe_op_in_unsafe_fn \ |
| 449 | -Dnon_ascii_idents \ |
| 450 | -Wrust_2018_idioms \ |
| 451 | -Wunreachable_pub \ |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 452 | -Wmissing_docs \ |
Miguel Ojeda | f8f88aa | 2024-07-09 18:05:59 +0200 | [diff] [blame] | 453 | -Wrustdoc::missing_crate_level_docs \ |
Miguel Ojeda | bb421b5 | 2024-07-09 18:06:00 +0200 | [diff] [blame] | 454 | -Wclippy::all \ |
| 455 | -Wclippy::mut_mut \ |
Miguel Ojeda | f8f88aa | 2024-07-09 18:05:59 +0200 | [diff] [blame] | 456 | -Wclippy::needless_bitwise_bool \ |
| 457 | -Wclippy::needless_continue \ |
| 458 | -Wclippy::no_mangle_with_rust_abi \ |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 459 | -Wclippy::dbg_macro |
| 460 | |
Masahiro Yamada | fbaf242 | 2024-07-20 16:27:38 +0900 | [diff] [blame] | 461 | KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) \ |
| 462 | $(HOSTCFLAGS) -I $(srctree)/scripts/include |
| 463 | KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) \ |
| 464 | -I $(srctree)/scripts/include |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 465 | KBUILD_HOSTRUSTFLAGS := $(rust_common_flags) -O -Cstrip=debuginfo \ |
| 466 | -Zallow-features= $(HOSTRUSTFLAGS) |
Laura Abbott | f92d19e | 2018-07-09 17:46:02 -0700 | [diff] [blame] | 467 | KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) |
| 468 | KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | # Make variables (CC, etc...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | CPP = $(CC) -E |
Masahiro Yamada | a0d1c95 | 2020-04-08 10:36:23 +0900 | [diff] [blame] | 472 | ifneq ($(LLVM),) |
Nathan Chancellor | e9c2819 | 2022-03-04 10:08:14 -0700 | [diff] [blame] | 473 | CC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX) |
| 474 | LD = $(LLVM_PREFIX)ld.lld$(LLVM_SUFFIX) |
| 475 | AR = $(LLVM_PREFIX)llvm-ar$(LLVM_SUFFIX) |
| 476 | NM = $(LLVM_PREFIX)llvm-nm$(LLVM_SUFFIX) |
| 477 | OBJCOPY = $(LLVM_PREFIX)llvm-objcopy$(LLVM_SUFFIX) |
| 478 | OBJDUMP = $(LLVM_PREFIX)llvm-objdump$(LLVM_SUFFIX) |
| 479 | READELF = $(LLVM_PREFIX)llvm-readelf$(LLVM_SUFFIX) |
| 480 | STRIP = $(LLVM_PREFIX)llvm-strip$(LLVM_SUFFIX) |
Masahiro Yamada | a0d1c95 | 2020-04-08 10:36:23 +0900 | [diff] [blame] | 481 | else |
| 482 | CC = $(CROSS_COMPILE)gcc |
| 483 | LD = $(CROSS_COMPILE)ld |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | AR = $(CROSS_COMPILE)ar |
| 485 | NM = $(CROSS_COMPILE)nm |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 487 | OBJDUMP = $(CROSS_COMPILE)objdump |
Dmitry Golovin | eefb8c1 | 2019-12-05 00:54:41 +0200 | [diff] [blame] | 488 | READELF = $(CROSS_COMPILE)readelf |
Masahiro Yamada | a0d1c95 | 2020-04-08 10:36:23 +0900 | [diff] [blame] | 489 | STRIP = $(CROSS_COMPILE)strip |
| 490 | endif |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 491 | RUSTC = rustc |
| 492 | RUSTDOC = rustdoc |
| 493 | RUSTFMT = rustfmt |
| 494 | CLIPPY_DRIVER = clippy-driver |
| 495 | BINDGEN = bindgen |
Andrii Nakryiko | e83b9f5 | 2019-04-02 09:49:50 -0700 | [diff] [blame] | 496 | PAHOLE = pahole |
Jiri Olsa | c9a0f3b | 2020-07-11 23:53:24 +0200 | [diff] [blame] | 497 | RESOLVE_BTFIDS = $(objtree)/tools/bpf/resolve_btfids/resolve_btfids |
Masahiro Yamada | 73a4f6d | 2017-12-10 01:02:28 +0900 | [diff] [blame] | 498 | LEX = flex |
| 499 | YACC = bison |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 500 | AWK = awk |
Sam Ravnborg | caa27b6 | 2009-07-20 21:37:11 +0200 | [diff] [blame] | 501 | INSTALLKERNEL := installkernel |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | PERL = perl |
Masahiro Yamada | e9781b5 | 2018-03-13 18:12:02 +0900 | [diff] [blame] | 503 | PYTHON3 = python3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | CHECK = sparse |
Masahiro Yamada | 858805b | 2019-08-25 22:28:37 +0900 | [diff] [blame] | 505 | BASH = bash |
Denis Efremov | e4a42c8 | 2020-06-08 12:59:44 +0300 | [diff] [blame] | 506 | KGZIP = gzip |
| 507 | KBZIP2 = bzip2 |
| 508 | KLZOP = lzop |
Denis Efremov | 8dfb61d | 2020-06-05 10:39:55 +0300 | [diff] [blame] | 509 | LZMA = lzma |
| 510 | LZ4 = lz4c |
| 511 | XZ = xz |
Nick Terrell | 48f7ddf | 2020-07-30 12:08:36 -0700 | [diff] [blame] | 512 | ZSTD = zstd |
Denis Efremov | 8dfb61d | 2020-06-05 10:39:55 +0300 | [diff] [blame] | 513 | |
Hannes Eder | 80a7d1d | 2008-12-27 22:38:44 +0100 | [diff] [blame] | 514 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
Luc Van Oostenryck | 6c49f35 | 2018-02-15 22:07:50 +0100 | [diff] [blame] | 515 | -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF) |
Douglas Anderson | 0c22be0 | 2019-03-14 16:41:59 -0700 | [diff] [blame] | 516 | NOSTDINC_FLAGS := |
Sam Ravnborg | 6588169 | 2010-07-28 17:33:09 +0200 | [diff] [blame] | 517 | CFLAGS_MODULE = |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 518 | RUSTFLAGS_MODULE = |
Sam Ravnborg | 6588169 | 2010-07-28 17:33:09 +0200 | [diff] [blame] | 519 | AFLAGS_MODULE = |
| 520 | LDFLAGS_MODULE = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | CFLAGS_KERNEL = |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 522 | RUSTFLAGS_KERNEL = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | AFLAGS_KERNEL = |
Masahiro Yamada | 8debed3 | 2023-01-09 04:23:17 +0900 | [diff] [blame] | 524 | LDFLAGS_vmlinux = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
David Howells | abbf159 | 2012-10-02 18:01:26 +0100 | [diff] [blame] | 526 | # Use USERINCLUDE when you must reference the UAPI directories only. |
| 527 | USERINCLUDE := \ |
Masahiro Yamada | 9d022c5 | 2017-10-04 12:56:04 +0900 | [diff] [blame] | 528 | -I$(srctree)/arch/$(SRCARCH)/include/uapi \ |
| 529 | -I$(objtree)/arch/$(SRCARCH)/include/generated/uapi \ |
David Howells | abbf159 | 2012-10-02 18:01:26 +0100 | [diff] [blame] | 530 | -I$(srctree)/include/uapi \ |
Arnd Bergmann | 3308b28 | 2016-06-15 17:45:45 +0200 | [diff] [blame] | 531 | -I$(objtree)/include/generated/uapi \ |
Masahiro Yamada | ce6ed1c | 2021-03-04 20:37:08 +0900 | [diff] [blame] | 532 | -include $(srctree)/include/linux/compiler-version.h \ |
David Howells | abbf159 | 2012-10-02 18:01:26 +0100 | [diff] [blame] | 533 | -include $(srctree)/include/linux/kconfig.h |
| 534 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | # Use LINUXINCLUDE when you must reference the include/ directory. |
| 536 | # Needed to be compatible with the O= option |
David Howells | abbf159 | 2012-10-02 18:01:26 +0100 | [diff] [blame] | 537 | LINUXINCLUDE := \ |
Masahiro Yamada | 9d022c5 | 2017-10-04 12:56:04 +0900 | [diff] [blame] | 538 | -I$(srctree)/arch/$(SRCARCH)/include \ |
| 539 | -I$(objtree)/arch/$(SRCARCH)/include/generated \ |
Masahiro Yamada | 051f278 | 2019-07-06 12:07:12 +0900 | [diff] [blame] | 540 | $(if $(building_out_of_srctree),-I$(srctree)/include) \ |
Masahiro Yamada | f8224f7 | 2017-06-06 16:15:28 +0900 | [diff] [blame] | 541 | -I$(objtree)/include \ |
| 542 | $(USERINCLUDE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | |
Masahiro Yamada | 42a92bc | 2018-12-14 17:05:37 +0900 | [diff] [blame] | 544 | KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE |
Alexey Dobriyan | 0817d25 | 2023-07-13 21:52:28 +0300 | [diff] [blame] | 545 | |
| 546 | KBUILD_CFLAGS := |
| 547 | KBUILD_CFLAGS += -std=gnu11 |
| 548 | KBUILD_CFLAGS += -fshort-wchar |
| 549 | KBUILD_CFLAGS += -funsigned-char |
| 550 | KBUILD_CFLAGS += -fno-common |
| 551 | KBUILD_CFLAGS += -fno-PIE |
| 552 | KBUILD_CFLAGS += -fno-strict-aliasing |
Alexey Dobriyan | 0817d25 | 2023-07-13 21:52:28 +0300 | [diff] [blame] | 553 | |
Masahiro Yamada | 433dc2e | 2017-10-12 18:22:25 +0900 | [diff] [blame] | 554 | KBUILD_CPPFLAGS := -D__KERNEL__ |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 555 | KBUILD_RUSTFLAGS := $(rust_common_flags) \ |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 556 | -Cpanic=abort -Cembed-bitcode=n -Clto=n \ |
| 557 | -Cforce-unwind-tables=n -Ccodegen-units=1 \ |
| 558 | -Csymbol-mangling-version=v0 \ |
| 559 | -Crelocation-model=static \ |
| 560 | -Zfunction-sections=n \ |
Miguel Ojeda | f8f88aa | 2024-07-09 18:05:59 +0200 | [diff] [blame] | 561 | -Wclippy::float_arithmetic |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 562 | |
Sam Ravnborg | 80c00ba | 2010-07-28 19:11:27 +0200 | [diff] [blame] | 563 | KBUILD_AFLAGS_KERNEL := |
| 564 | KBUILD_CFLAGS_KERNEL := |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 565 | KBUILD_RUSTFLAGS_KERNEL := |
Sam Ravnborg | 6588169 | 2010-07-28 17:33:09 +0200 | [diff] [blame] | 566 | KBUILD_AFLAGS_MODULE := -DMODULE |
| 567 | KBUILD_CFLAGS_MODULE := -DMODULE |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 568 | KBUILD_RUSTFLAGS_MODULE := --cfg MODULE |
Masahiro Yamada | 10df063 | 2019-08-15 01:06:22 +0900 | [diff] [blame] | 569 | KBUILD_LDFLAGS_MODULE := |
Masahiro Yamada | d503ac5 | 2018-08-24 08:20:39 +0900 | [diff] [blame] | 570 | KBUILD_LDFLAGS := |
Masahiro Yamada | 5241ab4c | 2019-07-29 18:15:17 +0900 | [diff] [blame] | 571 | CLANG_FLAGS := |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 573 | ifeq ($(KBUILD_CLIPPY),1) |
| 574 | RUSTC_OR_CLIPPY_QUIET := CLIPPY |
| 575 | RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER) |
| 576 | else |
| 577 | RUSTC_OR_CLIPPY_QUIET := RUSTC |
| 578 | RUSTC_OR_CLIPPY = $(RUSTC) |
| 579 | endif |
| 580 | |
| 581 | ifdef RUST_LIB_SRC |
| 582 | export RUST_LIB_SRC |
| 583 | endif |
| 584 | |
| 585 | # Allows the usage of unstable features in stable compilers. |
| 586 | export RUSTC_BOOTSTRAP := 1 |
| 587 | |
Chun-Tse Shao | d5ea4fe | 2022-04-01 23:18:02 +0000 | [diff] [blame] | 588 | export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC HOSTPKG_CONFIG |
Miguel Ojeda | 9ffc80c | 2024-05-28 18:35:02 +0200 | [diff] [blame] | 589 | export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_QUIET RUSTC_OR_CLIPPY BINDGEN |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 590 | export HOSTRUSTC KBUILD_HOSTRUSTFLAGS |
Vasily Gorbik | d9b5665 | 2020-10-23 13:57:32 +0200 | [diff] [blame] | 591 | export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL |
Masahiro Yamada | d8d2d38 | 2021-02-01 10:00:24 +0900 | [diff] [blame] | 592 | export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX |
Nick Terrell | 48f7ddf | 2020-07-30 12:08:36 -0700 | [diff] [blame] | 593 | export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD |
Vasily Gorbik | 7bac987 | 2019-01-21 13:54:39 +0100 | [diff] [blame] | 594 | export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE |
Elliot Berman | f67695c9 | 2022-02-01 13:35:42 -0800 | [diff] [blame] | 595 | export KBUILD_USERCFLAGS KBUILD_USERLDFLAGS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | |
Masahiro Yamada | d503ac5 | 2018-08-24 08:20:39 +0900 | [diff] [blame] | 597 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS |
Andrey Konovalov | 0e410e1 | 2018-02-06 15:36:00 -0800 | [diff] [blame] | 598 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 599 | export KBUILD_RUSTFLAGS RUSTFLAGS_KERNEL RUSTFLAGS_MODULE |
Sam Ravnborg | 222d394 | 2007-10-15 21:59:31 +0200 | [diff] [blame] | 600 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 601 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_RUSTFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
| 602 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL KBUILD_RUSTFLAGS_KERNEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | # Files to ignore in find ... statements |
| 605 | |
Prarit Bhargava | ae63b2d | 2014-02-06 07:51:42 -0500 | [diff] [blame] | 606 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ |
| 607 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ |
| 608 | -prune -o |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
| 610 | # =========================================================================== |
| 611 | # Rules shared between *config targets and build targets |
| 612 | |
Cao jin | 312a3d0 | 2017-08-02 10:31:06 +0800 | [diff] [blame] | 613 | # Basic helpers built in scripts/basic/ |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 614 | PHONY += scripts_basic |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 615 | scripts_basic: |
| 616 | $(Q)$(MAKE) $(build)=scripts/basic |
| 617 | |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 618 | PHONY += outputmakefile |
Masahiro Yamada | 2728fcf | 2021-05-17 16:03:11 +0900 | [diff] [blame] | 619 | ifdef building_out_of_srctree |
Masahiro Yamada | e8e83a2 | 2019-08-22 13:46:11 +0900 | [diff] [blame] | 620 | # Before starting out-of-tree build, make sure the source tree is clean. |
Jan Beulich | fd5f0cd | 2006-05-02 12:33:20 +0200 | [diff] [blame] | 621 | # outputmakefile generates a Makefile in the output directory, if using a |
| 622 | # separate output directory. This allows convenient use of make in the |
| 623 | # output directory. |
Vladimir Kondratiev | 3a51ff3 | 2019-02-03 10:48:40 +0200 | [diff] [blame] | 624 | # At the same time when output Makefile generated, generate .gitignore to |
| 625 | # ignore whole output directory |
Masahiro Yamada | 2728fcf | 2021-05-17 16:03:11 +0900 | [diff] [blame] | 626 | |
| 627 | quiet_cmd_makefile = GEN Makefile |
| 628 | cmd_makefile = { \ |
| 629 | echo "\# Automatically generated by $(srctree)/Makefile: don't edit"; \ |
| 630 | echo "include $(srctree)/Makefile"; \ |
| 631 | } > Makefile |
| 632 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 633 | outputmakefile: |
Masahiro Yamada | 4b09865 | 2022-09-24 17:24:25 +0900 | [diff] [blame] | 634 | @if [ -f $(srctree)/.config -o \ |
Masahiro Yamada | e8e83a2 | 2019-08-22 13:46:11 +0900 | [diff] [blame] | 635 | -d $(srctree)/include/config -o \ |
| 636 | -d $(srctree)/arch/$(SRCARCH)/include/generated ]; then \ |
| 637 | echo >&2 "***"; \ |
| 638 | echo >&2 "*** The source tree is not clean, please run 'make$(if $(findstring command line, $(origin ARCH)), ARCH=$(ARCH)) mrproper'"; \ |
| 639 | echo >&2 "*** in $(abs_srctree)";\ |
| 640 | echo >&2 "***"; \ |
| 641 | false; \ |
| 642 | fi |
Andi Kleen | 9297999 | 2009-01-10 04:56:13 +0100 | [diff] [blame] | 643 | $(Q)ln -fsn $(srctree) source |
Masahiro Yamada | 2728fcf | 2021-05-17 16:03:11 +0900 | [diff] [blame] | 644 | $(call cmd,makefile) |
Masahiro Yamada | 156e7cb | 2019-03-26 13:26:58 +0900 | [diff] [blame] | 645 | $(Q)test -e .gitignore || \ |
| 646 | { echo "# this is build directory, ignore it"; echo "*"; } > .gitignore |
Jan Beulich | fd5f0cd | 2006-05-02 12:33:20 +0200 | [diff] [blame] | 647 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | |
Nick Desaulniers | db07562 | 2021-02-05 14:01:25 -0800 | [diff] [blame] | 649 | # The expansion should be delayed until arch/$(SRCARCH)/Makefile is included. |
| 650 | # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile. |
| 651 | # CC_VERSION_TEXT is referenced from Kconfig (so it needs export), |
| 652 | # and from include/config/auto.conf.cmd to detect the compiler upgrade. |
Masahiro Yamada | 6072b2c | 2021-08-01 11:53:46 +0900 | [diff] [blame] | 653 | CC_VERSION_TEXT = $(subst $(pound),,$(shell LC_ALL=C $(CC) --version 2>/dev/null | head -n 1)) |
Nick Desaulniers | db07562 | 2021-02-05 14:01:25 -0800 | [diff] [blame] | 654 | |
| 655 | ifneq ($(findstring clang,$(CC_VERSION_TEXT)),) |
Nick Desaulniers | 6f5b41a | 2021-08-02 11:39:08 -0700 | [diff] [blame] | 656 | include $(srctree)/scripts/Makefile.clang |
Chris Fries | ae6b289 | 2017-11-07 11:46:13 -0800 | [diff] [blame] | 657 | endif |
| 658 | |
Masahiro Yamada | 57fd251 | 2021-02-28 15:10:27 +0900 | [diff] [blame] | 659 | # Include this also for config targets because some architectures need |
| 660 | # cc-cross-prefix to determine CROSS_COMPILE. |
Masahiro Yamada | 805b2e1 | 2021-02-28 15:10:28 +0900 | [diff] [blame] | 661 | ifdef need-compiler |
Masahiro Yamada | 57fd251 | 2021-02-28 15:10:27 +0900 | [diff] [blame] | 662 | include $(srctree)/scripts/Makefile.compiler |
Masahiro Yamada | 805b2e1 | 2021-02-28 15:10:28 +0900 | [diff] [blame] | 663 | endif |
Masahiro Yamada | 57fd251 | 2021-02-28 15:10:27 +0900 | [diff] [blame] | 664 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 665 | ifdef config-build |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | # =========================================================================== |
| 667 | # *config targets only - make sure prerequisites are updated, and descend |
| 668 | # in scripts/kconfig to make the *config target |
| 669 | |
Simon Glass | 766b700 | 2023-10-26 20:26:23 +1300 | [diff] [blame] | 670 | # Read arch-specific Makefile to set KBUILD_DEFCONFIG as needed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 671 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
| 672 | # used for 'make defconfig' |
Masahiro Yamada | 3204a7f | 2021-02-28 15:10:26 +0900 | [diff] [blame] | 673 | include $(srctree)/arch/$(SRCARCH)/Makefile |
Masahiro Yamada | 315bab4 | 2018-06-08 09:21:43 +0900 | [diff] [blame] | 674 | export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
Masahiro Yamada | 36de077 | 2019-08-22 13:46:13 +0900 | [diff] [blame] | 676 | config: outputmakefile scripts_basic FORCE |
Sam Ravnborg | 31110eb | 2008-12-13 23:00:45 +0100 | [diff] [blame] | 677 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 678 | |
Masahiro Yamada | 36de077 | 2019-08-22 13:46:13 +0900 | [diff] [blame] | 679 | %config: outputmakefile scripts_basic FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 681 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 682 | else #!config-build |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | # =========================================================================== |
Simon Glass | 766b700 | 2023-10-26 20:26:23 +1300 | [diff] [blame] | 684 | # Build targets only - this includes vmlinux, arch-specific targets, clean |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | # targets and others. In general all targets except *config targets. |
| 686 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 687 | # If building an external module we do not care about the all: rule |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 688 | # but instead __all depend on modules |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 689 | PHONY += all |
| 690 | ifeq ($(KBUILD_EXTMOD),) |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 691 | __all: all |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 692 | else |
Masahiro Yamada | 121c2a1 | 2020-05-11 12:50:13 +0900 | [diff] [blame] | 693 | __all: modules |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 694 | endif |
| 695 | |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 696 | targets := |
| 697 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 698 | # Decide whether to build built-in, modular, or both. |
| 699 | # Normally, just do built-in. |
| 700 | |
| 701 | KBUILD_MODULES := |
| 702 | KBUILD_BUILTIN := 1 |
| 703 | |
| 704 | # If we have only "make modules", don't compile built-in objects. |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 705 | ifeq ($(MAKECMDGOALS),modules) |
Masahiro Yamada | 4b50c8c | 2020-05-31 17:47:06 +0900 | [diff] [blame] | 706 | KBUILD_BUILTIN := |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 707 | endif |
| 708 | |
| 709 | # If we have "make <whatever> modules", compile modules |
| 710 | # in addition to whatever we do anyway. |
| 711 | # Just "make" or "make all" shall build modules as well |
| 712 | |
Nathan Huckleberry | 6ad7cbc | 2020-08-22 23:56:18 +0900 | [diff] [blame] | 713 | ifneq ($(filter all modules nsdeps %compile_commands.json clang-%,$(MAKECMDGOALS)),) |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 714 | KBUILD_MODULES := 1 |
| 715 | endif |
| 716 | |
| 717 | ifeq ($(MAKECMDGOALS),) |
| 718 | KBUILD_MODULES := 1 |
| 719 | endif |
| 720 | |
| 721 | export KBUILD_MODULES KBUILD_BUILTIN |
| 722 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 723 | ifdef need-config |
Masahiro Yamada | d93a18f | 2019-04-27 12:33:36 +0900 | [diff] [blame] | 724 | include include/config/auto.conf |
| 725 | endif |
| 726 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | ifeq ($(KBUILD_EXTMOD),) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | # Objects we will link into vmlinux / subdirs we need to visit |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 729 | core-y := |
| 730 | drivers-y := |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | libs-y := lib/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | endif # KBUILD_EXTMOD |
| 733 | |
Masahiro Yamada | 315bab4 | 2018-06-08 09:21:43 +0900 | [diff] [blame] | 734 | # The all: target is the default when no target is given on the |
| 735 | # command line. |
| 736 | # This allow a user to issue only 'make' to build a kernel including modules |
| 737 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
| 738 | all: vmlinux |
| 739 | |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 740 | CFLAGS_GCOV := -fprofile-arcs -ftest-coverage |
| 741 | ifdef CONFIG_CC_IS_GCC |
| 742 | CFLAGS_GCOV += -fno-tree-loop-im |
| 743 | endif |
Masahiro Yamada | 5aadfde | 2018-05-28 18:22:04 +0900 | [diff] [blame] | 744 | export CFLAGS_GCOV |
Masahiro Yamada | 315bab4 | 2018-06-08 09:21:43 +0900 | [diff] [blame] | 745 | |
Paulo Zanoni | b1f4ff7 | 2018-09-10 10:59:56 -0700 | [diff] [blame] | 746 | # The arch Makefiles can override CC_FLAGS_FTRACE. We may also append it later. |
| 747 | ifdef CONFIG_FUNCTION_TRACER |
| 748 | CC_FLAGS_FTRACE := -pg |
| 749 | endif |
| 750 | |
Masahiro Yamada | 3204a7f | 2021-02-28 15:10:26 +0900 | [diff] [blame] | 751 | include $(srctree)/arch/$(SRCARCH)/Makefile |
Masahiro Yamada | 315bab4 | 2018-06-08 09:21:43 +0900 | [diff] [blame] | 752 | |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 753 | ifdef need-config |
| 754 | ifdef may-sync-config |
Masahiro Yamada | 315bab4 | 2018-06-08 09:21:43 +0900 | [diff] [blame] | 755 | # Read in dependencies to all Kconfig* files, make sure to run syncconfig if |
| 756 | # changes are detected. This should be included after arch/$(SRCARCH)/Makefile |
| 757 | # because some architectures define CROSS_COMPILE there. |
Masahiro Yamada | d2f8ae0 | 2019-05-12 11:13:48 +0900 | [diff] [blame] | 758 | include include/config/auto.conf.cmd |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 759 | |
Masahiro Yamada | 0585071 | 2019-02-22 16:40:11 +0900 | [diff] [blame] | 760 | $(KCONFIG_CONFIG): |
| 761 | @echo >&2 '***' |
| 762 | @echo >&2 '*** Configuration file "$@" not found!' |
| 763 | @echo >&2 '***' |
| 764 | @echo >&2 '*** Please run some configurator (e.g. "make oldconfig" or' |
| 765 | @echo >&2 '*** "make menuconfig" or "make xconfig").' |
| 766 | @echo >&2 '***' |
| 767 | @/bin/false |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
Ulf Magnusson | 6127798 | 2018-02-13 08:58:20 +0100 | [diff] [blame] | 769 | # The actual configuration files used during the build are stored in |
| 770 | # include/generated/ and include/config/. Update them if .config is newer than |
| 771 | # include/config/auto.conf (which mirrors .config). |
Masahiro Yamada | 9390dff | 2019-02-22 16:40:10 +0900 | [diff] [blame] | 772 | # |
| 773 | # This exploits the 'multi-target pattern rule' trick. |
| 774 | # The syncconfig should be executed only once to make all the targets. |
Masahiro Yamada | f463c35 | 2020-03-25 12:16:30 +0900 | [diff] [blame] | 775 | # (Note: use the grouped target '&:' when we bump to GNU Make 4.3) |
Masahiro Yamada | d952cfa | 2021-07-14 13:23:49 +0900 | [diff] [blame] | 776 | # |
| 777 | # Do not use $(call cmd,...) here. That would suppress prompts from syncconfig, |
| 778 | # so you cannot notice that Kconfig is waiting for the user input. |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 779 | %/config/auto.conf %/config/auto.conf.cmd %/generated/autoconf.h %/generated/rustc_cfg: $(KCONFIG_CONFIG) |
Masahiro Yamada | d952cfa | 2021-07-14 13:23:49 +0900 | [diff] [blame] | 780 | $(Q)$(kecho) " SYNC $@" |
| 781 | $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 782 | else # !may-sync-config |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 783 | # External modules and some install targets need include/generated/autoconf.h |
| 784 | # and include/config/auto.conf but do not care if they are up-to-date. |
| 785 | # Use auto.conf to trigger the test |
Sam Ravnborg | 9ee4e33 | 2006-08-07 21:01:36 +0200 | [diff] [blame] | 786 | PHONY += include/config/auto.conf |
| 787 | |
| 788 | include/config/auto.conf: |
Masahiro Yamada | 4b09865 | 2022-09-24 17:24:25 +0900 | [diff] [blame] | 789 | @test -e include/generated/autoconf.h -a -e $@ || ( \ |
Michal Marek | 5369f55 | 2012-07-07 23:04:40 +0200 | [diff] [blame] | 790 | echo >&2; \ |
| 791 | echo >&2 " ERROR: Kernel configuration is invalid."; \ |
| 792 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ |
| 793 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
| 794 | echo >&2 ; \ |
Sam Ravnborg | 9ee4e33 | 2006-08-07 21:01:36 +0200 | [diff] [blame] | 795 | /bin/false) |
| 796 | |
Masahiro Yamada | d794241 | 2018-07-20 16:46:34 +0900 | [diff] [blame] | 797 | endif # may-sync-config |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 798 | endif # need-config |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 800 | KBUILD_CFLAGS += -fno-delete-null-pointer-checks |
Geert Uytterhoeven | a1c48bb | 2014-05-27 09:54:12 +0200 | [diff] [blame] | 801 | |
Masahiro Yamada | 15f5db6 | 2019-08-21 02:09:40 +0900 | [diff] [blame] | 802 | ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE |
| 803 | KBUILD_CFLAGS += -O2 |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 804 | KBUILD_RUSTFLAGS += -Copt-level=2 |
Masahiro Yamada | 15f5db6 | 2019-08-21 02:09:40 +0900 | [diff] [blame] | 805 | else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
| 806 | KBUILD_CFLAGS += -Os |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 807 | KBUILD_RUSTFLAGS += -Copt-level=s |
Arnd Bergmann | 815eb71 | 2016-04-25 17:35:28 +0200 | [diff] [blame] | 808 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 810 | # Always set `debug-assertions` and `overflow-checks` because their default |
| 811 | # depends on `opt-level` and `debug-assertions`, respectively. |
| 812 | KBUILD_RUSTFLAGS += -Cdebug-assertions=$(if $(CONFIG_RUST_DEBUG_ASSERTIONS),y,n) |
| 813 | KBUILD_RUSTFLAGS += -Coverflow-checks=$(if $(CONFIG_RUST_OVERFLOW_CHECKS),y,n) |
| 814 | |
Jiri Kosina | 6910231 | 2014-08-06 16:08:43 -0700 | [diff] [blame] | 815 | # Tell gcc to never replace conditional load with a non-conditional one |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 816 | ifdef CONFIG_CC_IS_GCC |
| 817 | # gcc-10 renamed --param=allow-store-data-races=0 to |
| 818 | # -fno-allow-store-data-races. |
Jiri Kosina | 6910231 | 2014-08-06 16:08:43 -0700 | [diff] [blame] | 819 | KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) |
Sergei Trofimovich | b111213 | 2020-03-17 00:07:18 +0000 | [diff] [blame] | 820 | KBUILD_CFLAGS += $(call cc-option,-fno-allow-store-data-races) |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 821 | endif |
Jiri Kosina | 6910231 | 2014-08-06 16:08:43 -0700 | [diff] [blame] | 822 | |
Andi Kleen | 1873e87 | 2012-03-28 11:51:18 -0700 | [diff] [blame] | 823 | ifdef CONFIG_READABLE_ASM |
| 824 | # Disable optimizations that make assembler listings hard to read. |
| 825 | # reorder blocks reorders the control in the function |
| 826 | # ipa clone creates specialized cloned functions |
| 827 | # partial inlining inlines only parts of functions |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 828 | KBUILD_CFLAGS += -fno-reorder-blocks -fno-ipa-cp-clone -fno-partial-inlining |
Andi Kleen | 1873e87 | 2012-03-28 11:51:18 -0700 | [diff] [blame] | 829 | endif |
| 830 | |
Masahiro Yamada | 893ab004 | 2020-06-27 03:59:12 +0900 | [diff] [blame] | 831 | stackp-flags-y := -fno-stack-protector |
Linus Torvalds | 050e9ba | 2018-06-14 12:21:18 +0900 | [diff] [blame] | 832 | stackp-flags-$(CONFIG_STACKPROTECTOR) := -fstack-protector |
| 833 | stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong |
Masahiro Yamada | 2a61f47 | 2018-05-28 18:22:00 +0900 | [diff] [blame] | 834 | |
| 835 | KBUILD_CFLAGS += $(stackp-flags-y) |
Sam Ravnborg | e06b8b9 | 2008-02-13 22:43:28 +0100 | [diff] [blame] | 836 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 837 | KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarnings |
| 838 | KBUILD_RUSTFLAGS += $(KBUILD_RUSTFLAGS-y) |
| 839 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | ifdef CONFIG_FRAME_POINTER |
Sam Ravnborg | a0f97e0 | 2007-10-14 22:21:35 +0200 | [diff] [blame] | 841 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 842 | KBUILD_RUSTFLAGS += -Cforce-frame-pointers=y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | else |
Rabin Vincent | 7e9501f | 2010-08-10 19:20:53 +0100 | [diff] [blame] | 844 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
| 845 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
| 846 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
| 847 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
| 848 | # -fomit-frame-pointer with FUNCTION_TRACER. |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 849 | # In the Rust target specification, "frame-pointer" is set explicitly |
| 850 | # to "may-omit". |
Rabin Vincent | 7e9501f | 2010-08-10 19:20:53 +0100 | [diff] [blame] | 851 | ifndef CONFIG_FUNCTION_TRACER |
Sam Ravnborg | a0f97e0 | 2007-10-14 22:21:35 +0200 | [diff] [blame] | 852 | KBUILD_CFLAGS += -fomit-frame-pointer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 853 | endif |
Rabin Vincent | 7e9501f | 2010-08-10 19:20:53 +0100 | [diff] [blame] | 854 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | |
glider@google.com | f0fe00d | 2020-06-16 10:34:35 +0200 | [diff] [blame] | 856 | # Initialize all stack variables with a 0xAA pattern. |
| 857 | ifdef CONFIG_INIT_STACK_ALL_PATTERN |
Kees Cook | 709a972 | 2019-04-10 08:48:31 -0700 | [diff] [blame] | 858 | KBUILD_CFLAGS += -ftrivial-auto-var-init=pattern |
| 859 | endif |
| 860 | |
glider@google.com | f0fe00d | 2020-06-16 10:34:35 +0200 | [diff] [blame] | 861 | # Initialize all stack variables with a zero value. |
| 862 | ifdef CONFIG_INIT_STACK_ALL_ZERO |
glider@google.com | f0fe00d | 2020-06-16 10:34:35 +0200 | [diff] [blame] | 863 | KBUILD_CFLAGS += -ftrivial-auto-var-init=zero |
Kees Cook | 607e57c | 2022-09-29 22:57:43 -0700 | [diff] [blame] | 864 | ifdef CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER |
| 865 | # https://github.com/llvm/llvm-project/issues/44842 |
Nathan Chancellor | 4e3feaa | 2023-01-24 09:19:28 -0700 | [diff] [blame] | 866 | CC_AUTO_VAR_INIT_ZERO_ENABLER := -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang |
| 867 | export CC_AUTO_VAR_INIT_ZERO_ENABLER |
| 868 | KBUILD_CFLAGS += $(CC_AUTO_VAR_INIT_ZERO_ENABLER) |
glider@google.com | f0fe00d | 2020-06-16 10:34:35 +0200 | [diff] [blame] | 869 | endif |
Kees Cook | f02003c | 2021-09-14 12:49:03 -0700 | [diff] [blame] | 870 | endif |
glider@google.com | f0fe00d | 2020-06-16 10:34:35 +0200 | [diff] [blame] | 871 | |
Kees Cook | 39218ff | 2021-04-01 16:23:44 -0700 | [diff] [blame] | 872 | # While VLAs have been removed, GCC produces unreachable stack probes |
| 873 | # for the randomize_kstack_offset feature. Disable it for all compilers. |
| 874 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-clash-protection) |
| 875 | |
Kees Cook | a82adfd | 2021-04-12 19:56:54 -0700 | [diff] [blame] | 876 | # Clear used registers at func exit (to reduce data lifetime and ROP gadgets). |
| 877 | ifdef CONFIG_ZERO_CALL_USED_REGS |
| 878 | KBUILD_CFLAGS += -fzero-call-used-regs=used-gpr |
| 879 | endif |
| 880 | |
Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 881 | ifdef CONFIG_FUNCTION_TRACER |
Sami Tolvanen | 3b15cdc1 | 2020-12-11 10:46:18 -0800 | [diff] [blame] | 882 | ifdef CONFIG_FTRACE_MCOUNT_USE_CC |
| 883 | CC_FLAGS_FTRACE += -mrecord-mcount |
Vasily Gorbik | 2f4df00 | 2018-08-06 15:17:46 +0200 | [diff] [blame] | 884 | ifdef CONFIG_HAVE_NOP_MCOUNT |
| 885 | ifeq ($(call cc-option-yn, -mnop-mcount),y) |
| 886 | CC_FLAGS_FTRACE += -mnop-mcount |
| 887 | CC_FLAGS_USING += -DCC_USING_NOP_MCOUNT |
| 888 | endif |
| 889 | endif |
Steven Rostedt | a2546fa | 2011-02-09 13:15:59 -0500 | [diff] [blame] | 890 | endif |
Sami Tolvanen | 22c8542 | 2020-09-25 16:43:53 -0700 | [diff] [blame] | 891 | ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL |
Sathvika Vasireddy | 280981d | 2022-11-14 23:27:49 +0530 | [diff] [blame] | 892 | ifdef CONFIG_HAVE_OBJTOOL_NOP_MCOUNT |
| 893 | CC_FLAGS_USING += -DCC_USING_NOP_MCOUNT |
| 894 | endif |
Sami Tolvanen | 22c8542 | 2020-09-25 16:43:53 -0700 | [diff] [blame] | 895 | endif |
Sami Tolvanen | 3b15cdc1 | 2020-12-11 10:46:18 -0800 | [diff] [blame] | 896 | ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT |
| 897 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
| 898 | BUILD_C_RECORDMCOUNT := y |
| 899 | export BUILD_C_RECORDMCOUNT |
| 900 | endif |
| 901 | endif |
Steven Rostedt | a2546fa | 2011-02-09 13:15:59 -0500 | [diff] [blame] | 902 | ifdef CONFIG_HAVE_FENTRY |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 903 | # s390-linux-gnu-gcc did not support -mfentry until gcc-9. |
Vasily Gorbik | f28bc3c | 2018-08-06 15:17:42 +0200 | [diff] [blame] | 904 | ifeq ($(call cc-option-yn, -mfentry),y) |
| 905 | CC_FLAGS_FTRACE += -mfentry |
| 906 | CC_FLAGS_USING += -DCC_USING_FENTRY |
| 907 | endif |
Steven Rostedt | a2546fa | 2011-02-09 13:15:59 -0500 | [diff] [blame] | 908 | endif |
Vasily Gorbik | f28bc3c | 2018-08-06 15:17:42 +0200 | [diff] [blame] | 909 | export CC_FLAGS_FTRACE |
| 910 | KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_FLAGS_USING) |
| 911 | KBUILD_AFLAGS += $(CC_FLAGS_USING) |
Arnaldo Carvalho de Melo | 16444a8 | 2008-05-12 21:20:42 +0200 | [diff] [blame] | 912 | endif |
| 913 | |
Sam Ravnborg | 91341d4 | 2008-01-21 21:31:44 +0100 | [diff] [blame] | 914 | # We trigger additional mismatches with less inlining |
| 915 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 916 | KBUILD_CFLAGS += -fno-inline-functions-called-once |
Sam Ravnborg | 91341d4 | 2008-01-21 21:31:44 +0100 | [diff] [blame] | 917 | endif |
| 918 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 919 | # `rustc`'s `-Zfunction-sections` applies to data too (as of 1.59.0). |
Masahiro Yamada | 90ad405 | 2017-04-14 15:17:26 +0900 | [diff] [blame] | 920 | ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION |
Masahiro Yamada | e85d1d6 | 2018-08-22 22:51:09 +0900 | [diff] [blame] | 921 | KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 922 | KBUILD_RUSTFLAGS_KERNEL += -Zfunction-sections=y |
Masahiro Yamada | e85d1d6 | 2018-08-22 22:51:09 +0900 | [diff] [blame] | 923 | LDFLAGS_vmlinux += --gc-sections |
Masahiro Yamada | 90ad405 | 2017-04-14 15:17:26 +0900 | [diff] [blame] | 924 | endif |
| 925 | |
Sami Tolvanen | d08b9f0 | 2020-04-27 09:00:07 -0700 | [diff] [blame] | 926 | ifdef CONFIG_SHADOW_CALL_STACK |
Ard Biesheuvel | 9beccca | 2022-10-27 17:59:07 +0200 | [diff] [blame] | 927 | ifndef CONFIG_DYNAMIC_SCS |
Sami Tolvanen | d08b9f0 | 2020-04-27 09:00:07 -0700 | [diff] [blame] | 928 | CC_FLAGS_SCS := -fsanitize=shadow-call-stack |
| 929 | KBUILD_CFLAGS += $(CC_FLAGS_SCS) |
Ard Biesheuvel | 9beccca | 2022-10-27 17:59:07 +0200 | [diff] [blame] | 930 | endif |
Sami Tolvanen | d08b9f0 | 2020-04-27 09:00:07 -0700 | [diff] [blame] | 931 | export CC_FLAGS_SCS |
| 932 | endif |
| 933 | |
Sami Tolvanen | dc5723b | 2020-12-11 10:46:19 -0800 | [diff] [blame] | 934 | ifdef CONFIG_LTO_CLANG |
| 935 | ifdef CONFIG_LTO_CLANG_THIN |
Alexander Lobakin | 2b86895 | 2021-01-21 18:45:55 +0000 | [diff] [blame] | 936 | CC_FLAGS_LTO := -flto=thin -fsplit-lto-unit |
Sami Tolvanen | dc5723b | 2020-12-11 10:46:19 -0800 | [diff] [blame] | 937 | else |
Alexander Lobakin | 2b86895 | 2021-01-21 18:45:55 +0000 | [diff] [blame] | 938 | CC_FLAGS_LTO := -flto |
Sami Tolvanen | dc5723b | 2020-12-11 10:46:19 -0800 | [diff] [blame] | 939 | endif |
| 940 | CC_FLAGS_LTO += -fvisibility=hidden |
Sami Tolvanen | 22d429e | 2020-12-11 10:46:21 -0800 | [diff] [blame] | 941 | |
| 942 | # Limit inlining across translation units to reduce binary size |
| 943 | KBUILD_LDFLAGS += -mllvm -import-instr-limit=5 |
Tor Vic | 0236526 | 2021-06-13 13:07:49 +0000 | [diff] [blame] | 944 | endif |
Sami Tolvanen | dc5723b | 2020-12-11 10:46:19 -0800 | [diff] [blame] | 945 | |
| 946 | ifdef CONFIG_LTO |
Sami Tolvanen | 5e95325 | 2021-02-23 13:59:52 -0800 | [diff] [blame] | 947 | KBUILD_CFLAGS += -fno-lto $(CC_FLAGS_LTO) |
| 948 | KBUILD_AFLAGS += -fno-lto |
Sami Tolvanen | dc5723b | 2020-12-11 10:46:19 -0800 | [diff] [blame] | 949 | export CC_FLAGS_LTO |
| 950 | endif |
| 951 | |
Sami Tolvanen | cf68fff | 2021-04-08 11:28:26 -0700 | [diff] [blame] | 952 | ifdef CONFIG_CFI_CLANG |
Sami Tolvanen | 8924560 | 2022-09-08 14:54:47 -0700 | [diff] [blame] | 953 | CC_FLAGS_CFI := -fsanitize=kcfi |
Sami Tolvanen | cf68fff | 2021-04-08 11:28:26 -0700 | [diff] [blame] | 954 | KBUILD_CFLAGS += $(CC_FLAGS_CFI) |
| 955 | export CC_FLAGS_CFI |
| 956 | endif |
| 957 | |
Samuel Holland | 6cbd1d6 | 2024-03-29 00:18:16 -0700 | [diff] [blame] | 958 | # Architectures can define flags to add/remove for floating-point support |
| 959 | CC_FLAGS_FPU += -D_LINUX_FPU_COMPILATION_UNIT |
| 960 | export CC_FLAGS_FPU |
| 961 | export CC_FLAGS_NO_FPU |
| 962 | |
Peter Zijlstra | d49a062 | 2022-09-15 13:10:47 +0200 | [diff] [blame] | 963 | ifneq ($(CONFIG_FUNCTION_ALIGNMENT),0) |
Petr Pavlu | 5270316 | 2024-02-22 14:35:00 +0100 | [diff] [blame] | 964 | # Set the minimal function alignment. Use the newer GCC option |
| 965 | # -fmin-function-alignment if it is available, or fall back to -falign-funtions. |
| 966 | # See also CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT. |
| 967 | ifdef CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT |
| 968 | KBUILD_CFLAGS += -fmin-function-alignment=$(CONFIG_FUNCTION_ALIGNMENT) |
| 969 | else |
Peter Zijlstra | d49a062 | 2022-09-15 13:10:47 +0200 | [diff] [blame] | 970 | KBUILD_CFLAGS += -falign-functions=$(CONFIG_FUNCTION_ALIGNMENT) |
Feng Tang | 09c6054 | 2020-08-11 18:34:13 -0700 | [diff] [blame] | 971 | endif |
Petr Pavlu | 5270316 | 2024-02-22 14:35:00 +0100 | [diff] [blame] | 972 | endif |
Feng Tang | 09c6054 | 2020-08-11 18:34:13 -0700 | [diff] [blame] | 973 | |
Sam Ravnborg | e8e6993 | 2005-04-30 16:51:42 -0700 | [diff] [blame] | 974 | # arch Makefile may override CC so keep this after arch Makefile is included |
Alexey Dobriyan | 04e85bb | 2021-08-02 23:43:15 +0300 | [diff] [blame] | 975 | NOSTDINC_FLAGS += -nostdinc |
Sam Ravnborg | e8e6993 | 2005-04-30 16:51:42 -0700 | [diff] [blame] | 976 | |
Kees Cook | df8fc4e | 2023-05-17 16:18:11 -0700 | [diff] [blame] | 977 | # To gain proper coverage for CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE, |
| 978 | # the kernel uses only C99 flexible arrays for dynamically sized trailing |
| 979 | # arrays. Enforce this for everything that may examine structure sizes and |
| 980 | # perform bounds checking. |
| 981 | KBUILD_CFLAGS += $(call cc-option, -fstrict-flex-arrays=3) |
| 982 | |
Gustavo A. R. Silva | a5e0ace0 | 2023-11-30 14:29:34 -0600 | [diff] [blame] | 983 | #Currently, disable -Wstringop-overflow for GCC 11, globally. |
| 984 | KBUILD_CFLAGS-$(CONFIG_CC_NO_STRINGOP_OVERFLOW) += $(call cc-option, -Wno-stringop-overflow) |
| 985 | KBUILD_CFLAGS-$(CONFIG_CC_STRINGOP_OVERFLOW) += $(call cc-option, -Wstringop-overflow) |
Gustavo A. R. Silva | 113a618 | 2023-10-31 17:50:11 -0600 | [diff] [blame] | 986 | |
Kirill Smelkov | fe8d0a4 | 2009-04-09 15:34:34 +0400 | [diff] [blame] | 987 | # disable invalid "can't wrap" optimizations for signed / pointers |
Masahiro Yamada | 8b42cf2 | 2020-09-10 22:51:17 +0900 | [diff] [blame] | 988 | KBUILD_CFLAGS += -fno-strict-overflow |
Linus Torvalds | d011555 | 2009-03-19 15:53:19 -0700 | [diff] [blame] | 989 | |
Linus Torvalds | 3ce120b | 2017-12-29 17:34:43 -0800 | [diff] [blame] | 990 | # Make sure -fstack-check isn't enabled (like gentoo apparently did) |
Masahiro Yamada | 7d4eb0d | 2020-09-10 22:51:19 +0900 | [diff] [blame] | 991 | KBUILD_CFLAGS += -fno-stack-check |
Linus Torvalds | 3ce120b | 2017-12-29 17:34:43 -0800 | [diff] [blame] | 992 | |
Andi Kleen | 8f7f5c9 | 2009-09-18 12:49:37 -0700 | [diff] [blame] | 993 | # conserve stack if available |
Nick Desaulniers | 7d73c3e | 2021-08-16 13:25:01 -0700 | [diff] [blame] | 994 | ifdef CONFIG_CC_IS_GCC |
| 995 | KBUILD_CFLAGS += -fconserve-stack |
| 996 | endif |
Andi Kleen | 8f7f5c9 | 2009-09-18 12:49:37 -0700 | [diff] [blame] | 997 | |
Masahiro Yamada | a73619a | 2018-03-30 13:15:26 +0900 | [diff] [blame] | 998 | # change __FILE__ to the relative path from the srctree |
Denys Zagorui | a716bd7 | 2020-11-02 04:08:53 -0800 | [diff] [blame] | 999 | KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) |
Masahiro Yamada | a73619a | 2018-03-30 13:15:26 +0900 | [diff] [blame] | 1000 | |
Masahiro Yamada | e0fe0bb | 2020-08-02 00:00:49 +0900 | [diff] [blame] | 1001 | # include additional Makefiles when needed |
| 1002 | include-y := scripts/Makefile.extrawarn |
Masahiro Yamada | 6947fd9 | 2021-10-12 12:25:03 +0900 | [diff] [blame] | 1003 | include-$(CONFIG_DEBUG_INFO) += scripts/Makefile.debug |
Masahiro Yamada | 72d0918 | 2023-10-19 00:19:48 +0900 | [diff] [blame] | 1004 | include-$(CONFIG_DEBUG_INFO_BTF)+= scripts/Makefile.btf |
Masahiro Yamada | e0fe0bb | 2020-08-02 00:00:49 +0900 | [diff] [blame] | 1005 | include-$(CONFIG_KASAN) += scripts/Makefile.kasan |
| 1006 | include-$(CONFIG_KCSAN) += scripts/Makefile.kcsan |
Alexander Potapenko | f80be45 | 2022-09-15 17:03:45 +0200 | [diff] [blame] | 1007 | include-$(CONFIG_KMSAN) += scripts/Makefile.kmsan |
Masahiro Yamada | e0fe0bb | 2020-08-02 00:00:49 +0900 | [diff] [blame] | 1008 | include-$(CONFIG_UBSAN) += scripts/Makefile.ubsan |
| 1009 | include-$(CONFIG_KCOV) += scripts/Makefile.kcov |
Kees Cook | 613f4b3e | 2022-05-03 13:55:01 -0700 | [diff] [blame] | 1010 | include-$(CONFIG_RANDSTRUCT) += scripts/Makefile.randstruct |
Masahiro Yamada | e0fe0bb | 2020-08-02 00:00:49 +0900 | [diff] [blame] | 1011 | include-$(CONFIG_GCC_PLUGINS) += scripts/Makefile.gcc-plugins |
| 1012 | |
| 1013 | include $(addprefix $(srctree)/, $(include-y)) |
Masahiro Yamada | a86fe35 | 2014-04-14 18:27:10 +0900 | [diff] [blame] | 1014 | |
Masahiro Yamada | 132305b | 2020-08-02 00:00:50 +0900 | [diff] [blame] | 1015 | # scripts/Makefile.gcc-plugins is intentionally included last. |
| 1016 | # Do not add $(call cc-option,...) below this line. When you build the kernel |
| 1017 | # from the clean source tree, the GCC plugins do not exist at this point. |
Jason Baron | bf5438fc | 2010-09-17 11:09:00 -0400 | [diff] [blame] | 1018 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1019 | # Add user supplied CPPFLAGS, AFLAGS, CFLAGS and RUSTFLAGS as the last assignments |
Masahiro Yamada | 8cc7af7 | 2019-08-21 02:09:41 +0900 | [diff] [blame] | 1020 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
| 1021 | KBUILD_AFLAGS += $(KAFLAGS) |
| 1022 | KBUILD_CFLAGS += $(KCFLAGS) |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1023 | KBUILD_RUSTFLAGS += $(KRUSTFLAGS) |
Sam Ravnborg | 52bcc33 | 2007-10-15 22:03:58 +0200 | [diff] [blame] | 1024 | |
Bill Wendling | a968433 | 2020-09-22 16:21:40 -0700 | [diff] [blame] | 1025 | KBUILD_LDFLAGS_MODULE += --build-id=sha1 |
| 1026 | LDFLAGS_vmlinux += --build-id=sha1 |
Roland McGrath | 1899119 | 2007-07-19 01:48:40 -0700 | [diff] [blame] | 1027 | |
Nick Desaulniers | 0d362be | 2022-08-10 15:24:40 -0700 | [diff] [blame] | 1028 | KBUILD_LDFLAGS += -z noexecstack |
| 1029 | ifeq ($(CONFIG_LD_IS_BFD),y) |
| 1030 | KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) |
| 1031 | endif |
| 1032 | |
David Howells | 5d7d18f | 2009-03-04 11:59:07 -0800 | [diff] [blame] | 1033 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
Masahiro Yamada | 0f1fe9d | 2022-09-30 03:12:23 +0900 | [diff] [blame] | 1034 | LDFLAGS_vmlinux += -X |
David Howells | 5d7d18f | 2009-03-04 11:59:07 -0800 | [diff] [blame] | 1035 | endif |
| 1036 | |
Peter Collingbourne | 5cf896fb6 | 2019-07-31 18:18:42 -0700 | [diff] [blame] | 1037 | ifeq ($(CONFIG_RELR),y) |
Fangrui Song | ccb2d17 | 2023-04-11 20:09:44 +0000 | [diff] [blame] | 1038 | # ld.lld before 15 did not support -z pack-relative-relocs. |
| 1039 | LDFLAGS_vmlinux += $(call ld-option,--pack-dyn-relocs=relr,-z pack-relative-relocs) |
Peter Collingbourne | 5cf896fb6 | 2019-07-31 18:18:42 -0700 | [diff] [blame] | 1040 | endif |
| 1041 | |
Nathan Chancellor | 59612b2 | 2020-11-19 13:46:56 -0700 | [diff] [blame] | 1042 | # We never want expected sections to be placed heuristically by the |
| 1043 | # linker. All sections should be explicitly named in the linker script. |
| 1044 | ifdef CONFIG_LD_ORPHAN_WARN |
Xin Li | e1789d7 | 2022-10-25 00:30:23 -0700 | [diff] [blame] | 1045 | LDFLAGS_vmlinux += --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL) |
Nathan Chancellor | 59612b2 | 2020-11-19 13:46:56 -0700 | [diff] [blame] | 1046 | endif |
| 1047 | |
Masahiro Yamada | 7f3a59d | 2020-04-29 12:45:14 +0900 | [diff] [blame] | 1048 | # Align the bit size of userspace programs with the kernel |
Masahiro Yamada | 7f58b48 | 2020-07-01 00:06:25 +0900 | [diff] [blame] | 1049 | KBUILD_USERCFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS)) |
| 1050 | KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CFLAGS)) |
Masahiro Yamada | 7f3a59d | 2020-04-29 12:45:14 +0900 | [diff] [blame] | 1051 | |
Luc Van Oostenryck | 80591e6 | 2019-11-09 13:12:16 +0100 | [diff] [blame] | 1052 | # make the checker run with the right architecture |
| 1053 | CHECKFLAGS += --arch=$(ARCH) |
| 1054 | |
Luc Van Oostenryck | 14516765 | 2018-05-28 20:27:35 +0200 | [diff] [blame] | 1055 | # insure the checker run with the right endianness |
| 1056 | CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) |
| 1057 | |
Luc Van Oostenryck | 1f2f01b | 2018-05-30 22:48:38 +0200 | [diff] [blame] | 1058 | # the checker needs the correct machine size |
| 1059 | CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) |
| 1060 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | # Default kernel image to build when no specific target is given. |
Sam Ravnborg | 070b98b | 2006-06-25 00:07:55 +0200 | [diff] [blame] | 1062 | # KBUILD_IMAGE may be overruled on the command line or |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | # set in the environment |
| 1064 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
| 1065 | # this default value |
| 1066 | export KBUILD_IMAGE ?= vmlinux |
| 1067 | |
| 1068 | # |
| 1069 | # INSTALL_PATH specifies where to place the updated kernel and system map |
| 1070 | # images. Default is /boot, but you can set it to other values |
| 1071 | export INSTALL_PATH ?= /boot |
| 1072 | |
| 1073 | # |
Jason Cooper | f4d4ffc | 2013-12-01 23:56:28 +0000 | [diff] [blame] | 1074 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. |
| 1075 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as |
| 1076 | # an argument if needed. Otherwise it defaults to the kernel install path |
| 1077 | # |
| 1078 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) |
| 1079 | |
| 1080 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1081 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
| 1082 | # relocations required by build roots. This is not defined in the |
Sam Ravnborg | 070b98b | 2006-06-25 00:07:55 +0200 | [diff] [blame] | 1083 | # makefile but the argument can be passed to make if needed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | # |
| 1085 | |
Sam Ravnborg | df9df03 | 2006-01-16 12:46:07 +0100 | [diff] [blame] | 1086 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | export MODLIB |
| 1088 | |
Masahiro Yamada | e00d888 | 2019-01-15 16:19:00 +0900 | [diff] [blame] | 1089 | PHONY += prepare0 |
Rusty Russell | e2a666d | 2012-10-19 11:53:15 +1030 | [diff] [blame] | 1090 | |
Masahiro Yamada | ccae4cf | 2021-03-31 22:38:07 +0900 | [diff] [blame] | 1091 | export extmod_prefix = $(if $(KBUILD_EXTMOD),$(KBUILD_EXTMOD)/) |
Masahiro Yamada | 7f69180 | 2021-03-31 22:38:06 +0900 | [diff] [blame] | 1092 | export MODORDER := $(extmod_prefix)modules.order |
| 1093 | export MODULES_NSDEPS := $(extmod_prefix)modules.nsdeps |
Masahiro Yamada | 47801c9 | 2019-08-02 19:23:58 +0900 | [diff] [blame] | 1094 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | ifeq ($(KBUILD_EXTMOD),) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1097 | build-dir := . |
| 1098 | clean-dirs := $(sort . Documentation \ |
Masahiro Yamada | 23febe3 | 2020-06-01 14:56:57 +0900 | [diff] [blame] | 1099 | $(patsubst %/,%,$(filter %/, $(core-) \ |
Masahiro Yamada | 95fb631 | 2020-06-01 14:56:58 +0900 | [diff] [blame] | 1100 | $(drivers-) $(libs-)))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1102 | export ARCH_CORE := $(core-y) |
| 1103 | export ARCH_LIB := $(filter %/, $(libs-y)) |
| 1104 | export ARCH_DRIVERS := $(drivers-y) $(drivers-m) |
Sam Ravnborg | 1f2bfbd | 2012-05-05 10:18:41 +0200 | [diff] [blame] | 1105 | # Externally visible symbols (used by link-vmlinux.sh) |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1106 | |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1107 | KBUILD_VMLINUX_OBJS := ./built-in.a |
Masahiro Yamada | f0d50ca | 2020-06-01 14:56:59 +0900 | [diff] [blame] | 1108 | ifdef CONFIG_MODULES |
| 1109 | KBUILD_VMLINUX_OBJS += $(patsubst %/, %/lib.a, $(filter %/, $(libs-y))) |
| 1110 | KBUILD_VMLINUX_LIBS := $(filter-out %/, $(libs-y)) |
| 1111 | else |
| 1112 | KBUILD_VMLINUX_LIBS := $(patsubst %/,%/lib.a, $(libs-y)) |
| 1113 | endif |
Masahiro Yamada | f0d50ca | 2020-06-01 14:56:59 +0900 | [diff] [blame] | 1114 | |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1115 | export KBUILD_VMLINUX_LIBS |
Sam Ravnborg | 9569857 | 2012-05-05 10:18:40 +0200 | [diff] [blame] | 1116 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | |
Nicolas Pitre | 2441e78 | 2016-04-22 15:25:00 -0400 | [diff] [blame] | 1118 | ifdef CONFIG_TRIM_UNUSED_KSYMS |
Masahiro Yamada | 1f50b80 | 2018-03-16 16:37:13 +0900 | [diff] [blame] | 1119 | # For the kernel to actually contain only the needed exported symbols, |
| 1120 | # we have to build modules as well to determine what those symbols are. |
Masahiro Yamada | fb2d99b | 2020-05-31 19:11:39 +0900 | [diff] [blame] | 1121 | KBUILD_MODULES := 1 |
Masahiro Yamada | 1f50b80 | 2018-03-16 16:37:13 +0900 | [diff] [blame] | 1122 | endif |
| 1123 | |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1124 | # '$(AR) mPi' needs 'T' to workaround the bug of llvm-ar <= 14 |
| 1125 | quiet_cmd_ar_vmlinux.a = AR $@ |
| 1126 | cmd_ar_vmlinux.a = \ |
| 1127 | rm -f $@; \ |
| 1128 | $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \ |
Masahiro Yamada | fb3041d | 2022-10-28 01:28:39 +0900 | [diff] [blame] | 1129 | $(AR) mPiT $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt) |
Nicholas Piggin | fbe6e37 | 2016-08-24 22:29:21 +1000 | [diff] [blame] | 1130 | |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1131 | targets += vmlinux.a |
Masahiro Yamada | 5e9e95cc9 | 2023-06-12 00:50:57 +0900 | [diff] [blame] | 1132 | vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt FORCE |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1133 | $(call if_changed,ar_vmlinux.a) |
Nicolas Pitre | 2441e78 | 2016-04-22 15:25:00 -0400 | [diff] [blame] | 1134 | |
Masahiro Yamada | 7a342e6 | 2022-09-28 15:39:40 +0900 | [diff] [blame] | 1135 | PHONY += vmlinux_o |
| 1136 | vmlinux_o: vmlinux.a $(KBUILD_VMLINUX_LIBS) |
Masahiro Yamada | 9c5a0ac | 2022-09-25 03:19:12 +0900 | [diff] [blame] | 1137 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.vmlinux_o |
Sam Ravnborg | 741f98f | 2007-07-17 10:54:06 +0200 | [diff] [blame] | 1138 | |
Masahiro Yamada | 7a342e6 | 2022-09-28 15:39:40 +0900 | [diff] [blame] | 1139 | vmlinux.o modules.builtin.modinfo modules.builtin: vmlinux_o |
| 1140 | @: |
| 1141 | |
Masahiro Yamada | 5d4aeff | 2022-09-28 15:39:41 +0900 | [diff] [blame] | 1142 | PHONY += vmlinux |
Masahiro Yamada | 8debed3 | 2023-01-09 04:23:17 +0900 | [diff] [blame] | 1143 | # LDFLAGS_vmlinux in the top Makefile defines linker flags for the top vmlinux, |
| 1144 | # not for decompressors. LDFLAGS_vmlinux in arch/*/boot/compressed/Makefile is |
| 1145 | # unrelated; the decompressors just happen to have the same base name, |
| 1146 | # arch/*/boot/compressed/vmlinux. |
| 1147 | # Export LDFLAGS_vmlinux only to scripts/Makefile.vmlinux. |
| 1148 | # |
| 1149 | # _LDFLAGS_vmlinux is a workaround for the 'private export' bug: |
| 1150 | # https://savannah.gnu.org/bugs/?61463 |
| 1151 | # For Make > 4.4, the following simple code will work: |
| 1152 | # vmlinux: private export LDFLAGS_vmlinux := $(LDFLAGS_vmlinux) |
| 1153 | vmlinux: private _LDFLAGS_vmlinux := $(LDFLAGS_vmlinux) |
| 1154 | vmlinux: export LDFLAGS_vmlinux = $(_LDFLAGS_vmlinux) |
Masahiro Yamada | 5d4aeff | 2022-09-28 15:39:41 +0900 | [diff] [blame] | 1155 | vmlinux: vmlinux.o $(KBUILD_LDS) modpost |
| 1156 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.vmlinux |
Masahiro Yamada | 392885e | 2018-11-30 10:05:22 +0900 | [diff] [blame] | 1157 | |
Masahiro Yamada | 38385f8 | 2014-04-28 16:26:18 +0900 | [diff] [blame] | 1158 | # The actual objects are generated when descending, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | # make sure no implicit rule kicks in |
Masahiro Yamada | 9c5a0ac | 2022-09-25 03:19:12 +0900 | [diff] [blame] | 1160 | $(sort $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)): . ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | |
Masahiro Yamada | 1cb86b6 | 2023-01-28 01:19:42 +0900 | [diff] [blame] | 1162 | ifeq ($(origin KERNELRELEASE),file) |
Masahiro Yamada | ec31f86 | 2023-01-22 23:14:25 +0900 | [diff] [blame] | 1163 | filechk_kernel.release = $(srctree)/scripts/setlocalversion $(srctree) |
Masahiro Yamada | 1cb86b6 | 2023-01-28 01:19:42 +0900 | [diff] [blame] | 1164 | else |
| 1165 | filechk_kernel.release = echo $(KERNELRELEASE) |
| 1166 | endif |
Michal Marek | 0d0e771 | 2013-07-11 15:34:51 +0200 | [diff] [blame] | 1167 | |
Geert Uytterhoeven | 83a35e3 | 2013-06-28 11:27:31 +0200 | [diff] [blame] | 1168 | # Store (new) KERNELRELEASE string in include/config/kernel.release |
Masahiro Yamada | 2451279 | 2019-04-07 19:03:18 +0900 | [diff] [blame] | 1169 | include/config/kernel.release: FORCE |
Michal Marek | 0d0e771 | 2013-07-11 15:34:51 +0200 | [diff] [blame] | 1170 | $(call filechk,kernel.release) |
Sam Ravnborg | cb58455 | 2006-01-09 21:20:34 +0100 | [diff] [blame] | 1171 | |
Masahiro Yamada | d882162 | 2018-03-16 16:37:11 +0900 | [diff] [blame] | 1172 | # Additional helpers built in scripts/ |
| 1173 | # Carefully list dependencies so we do not try to build scripts twice |
| 1174 | # in parallel |
| 1175 | PHONY += scripts |
Masahiro Yamada | 60df1ae | 2018-11-29 12:13:24 +0900 | [diff] [blame] | 1176 | scripts: scripts_basic scripts_dtc |
Masahiro Yamada | d882162 | 2018-03-16 16:37:11 +0900 | [diff] [blame] | 1177 | $(Q)$(MAKE) $(build)=$(@) |
Sam Ravnborg | cb58455 | 2006-01-09 21:20:34 +0100 | [diff] [blame] | 1178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | # Things we need to do before we recursively start building the kernel |
Sam Ravnborg | 5bb7826 | 2005-09-11 22:30:22 +0200 | [diff] [blame] | 1180 | # or the modules are listed in "prepare". |
| 1181 | # A multi level approach is used. prepareN is processed before prepareN-1. |
| 1182 | # archprepare is used in arch Makefiles and when processed asm symlink, |
| 1183 | # version.h and scripts_basic is processed / created. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1184 | |
Masahiro Yamada | a5139fb | 2019-08-22 13:46:12 +0900 | [diff] [blame] | 1185 | PHONY += prepare archprepare |
Sam Ravnborg | 5bb7826 | 2005-09-11 22:30:22 +0200 | [diff] [blame] | 1186 | |
Masahiro Yamada | 36de077 | 2019-08-22 13:46:13 +0900 | [diff] [blame] | 1187 | archprepare: outputmakefile archheaders archscripts scripts include/config/kernel.release \ |
Masahiro Yamada | 5e9e95cc9 | 2023-06-12 00:50:57 +0900 | [diff] [blame] | 1188 | asm-generic $(version_h) include/generated/utsrelease.h \ |
Masahiro Yamada | a55f283 | 2022-08-28 11:39:54 +0900 | [diff] [blame] | 1189 | include/generated/compile.h include/generated/autoconf.h remove-stale-files |
Sam Ravnborg | 5bb7826 | 2005-09-11 22:30:22 +0200 | [diff] [blame] | 1190 | |
Masahiro Yamada | 65bba04 | 2018-11-29 11:58:50 +0900 | [diff] [blame] | 1191 | prepare0: archprepare |
Masahiro Yamada | 60df1ae | 2018-11-29 12:13:24 +0900 | [diff] [blame] | 1192 | $(Q)$(MAKE) $(build)=scripts/mod |
Masahiro Yamada | ed7ceac | 2022-08-20 18:15:28 +0900 | [diff] [blame] | 1193 | $(Q)$(MAKE) $(build)=. prepare |
Sam Ravnborg | 86feeaa | 2005-09-09 19:28:28 +0200 | [diff] [blame] | 1194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1195 | # All the preparing.. |
Masahiro Yamada | 0d989ac | 2021-05-12 15:52:01 +0900 | [diff] [blame] | 1196 | prepare: prepare0 |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1197 | ifdef CONFIG_RUST |
Miguel Ojeda | ecab411 | 2024-02-17 01:26:37 +0100 | [diff] [blame] | 1198 | +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1199 | $(Q)$(MAKE) $(build)=rust |
| 1200 | endif |
Josh Poimboeuf | b9ab5eb | 2016-02-28 22:22:42 -0600 | [diff] [blame] | 1201 | |
Masahiro Yamada | 1476fee | 2021-04-25 16:07:12 +0900 | [diff] [blame] | 1202 | PHONY += remove-stale-files |
| 1203 | remove-stale-files: |
| 1204 | $(Q)$(srctree)/scripts/remove-stale-files |
| 1205 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 1206 | # Support for using generic headers in asm-generic |
Arnd Bergmann | fbb5c06 | 2024-04-26 15:19:48 +0200 | [diff] [blame] | 1207 | asm-generic := -f $(srctree)/scripts/Makefile.asm-headers obj |
Masahiro Yamada | 7d0e5c2 | 2018-12-05 20:28:04 +0900 | [diff] [blame] | 1208 | |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 1209 | PHONY += asm-generic uapi-asm-generic |
| 1210 | asm-generic: uapi-asm-generic |
Masahiro Yamada | 037fc33 | 2019-03-17 11:01:09 +0900 | [diff] [blame] | 1211 | $(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/asm \ |
| 1212 | generic=include/asm-generic |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 1213 | uapi-asm-generic: |
Masahiro Yamada | 037fc33 | 2019-03-17 11:01:09 +0900 | [diff] [blame] | 1214 | $(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/uapi/asm \ |
| 1215 | generic=include/uapi/asm-generic |
Masahiro Yamada | 2c1f4f1 | 2017-10-04 12:56:06 +0900 | [diff] [blame] | 1216 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | # Generate some files |
| 1218 | # --------------------------------------------------------------------------- |
| 1219 | |
| 1220 | # KERNELRELEASE can change from a few different places, meaning version.h |
| 1221 | # needs to be updated, so this check is forced on all builds |
| 1222 | |
| 1223 | uts_len := 64 |
Sam Ravnborg | 63104ee | 2006-07-03 23:30:54 +0200 | [diff] [blame] | 1224 | define filechk_utsrelease.h |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
Sam Ravnborg | 63104ee | 2006-07-03 23:30:54 +0200 | [diff] [blame] | 1226 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
| 1227 | exit 1; \ |
| 1228 | fi; \ |
Masahiro Yamada | ad77408 | 2018-12-31 17:24:09 +0900 | [diff] [blame] | 1229 | echo \#define UTS_RELEASE \"$(KERNELRELEASE)\" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1230 | endef |
| 1231 | |
Sam Ravnborg | 63104ee | 2006-07-03 23:30:54 +0200 | [diff] [blame] | 1232 | define filechk_version.h |
Sasha Levin | 9b82f13 | 2021-02-05 22:50:32 -0500 | [diff] [blame] | 1233 | if [ $(SUBLEVEL) -gt 255 ]; then \ |
| 1234 | echo \#define LINUX_VERSION_CODE $(shell \ |
Masahiro Yamada | 207da4c | 2021-02-27 23:20:23 +0900 | [diff] [blame] | 1235 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + 255); \ |
Sasha Levin | 9b82f13 | 2021-02-05 22:50:32 -0500 | [diff] [blame] | 1236 | else \ |
| 1237 | echo \#define LINUX_VERSION_CODE $(shell \ |
Masahiro Yamada | 207da4c | 2021-02-27 23:20:23 +0900 | [diff] [blame] | 1238 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ |
Sasha Levin | 9b82f13 | 2021-02-05 22:50:32 -0500 | [diff] [blame] | 1239 | fi; \ |
| 1240 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + \ |
Sasha Levin | 88a6867 | 2021-02-12 11:29:24 -0500 | [diff] [blame] | 1241 | ((c) > 255 ? 255 : (c)))'; \ |
| 1242 | echo \#define LINUX_VERSION_MAJOR $(VERSION); \ |
| 1243 | echo \#define LINUX_VERSION_PATCHLEVEL $(PATCHLEVEL); \ |
| 1244 | echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL) |
Sam Ravnborg | 63104ee | 2006-07-03 23:30:54 +0200 | [diff] [blame] | 1245 | endef |
| 1246 | |
Masahiro Yamada | d98dba8 | 2024-04-28 00:32:53 +0900 | [diff] [blame] | 1247 | $(version_h): private PATCHLEVEL := $(or $(PATCHLEVEL), 0) |
| 1248 | $(version_h): private SUBLEVEL := $(or $(SUBLEVEL), 0) |
Masahiro Yamada | 43fee2b | 2018-07-25 14:16:11 +0900 | [diff] [blame] | 1249 | $(version_h): FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1250 | $(call filechk,version.h) |
| 1251 | |
Sam Ravnborg | 273b281 | 2009-10-18 00:52:28 +0200 | [diff] [blame] | 1252 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
Sam Ravnborg | 63104ee | 2006-07-03 23:30:54 +0200 | [diff] [blame] | 1253 | $(call filechk,utsrelease.h) |
| 1254 | |
Masahiro Yamada | a55f283 | 2022-08-28 11:39:54 +0900 | [diff] [blame] | 1255 | filechk_compile.h = $(srctree)/scripts/mkcompile_h \ |
| 1256 | "$(UTS_MACHINE)" "$(CONFIG_CC_VERSION_TEXT)" "$(LD)" |
| 1257 | |
| 1258 | include/generated/compile.h: FORCE |
| 1259 | $(call filechk,compile.h) |
| 1260 | |
Vegard Nossum | 179efcb | 2008-12-16 12:33:43 +0100 | [diff] [blame] | 1261 | PHONY += headerdep |
| 1262 | headerdep: |
Peter Foley | 9663d98 | 2011-04-26 17:17:11 -0400 | [diff] [blame] | 1263 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
| 1264 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
Vegard Nossum | 179efcb | 2008-12-16 12:33:43 +0100 | [diff] [blame] | 1265 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | # --------------------------------------------------------------------------- |
David Woodhouse | 8d730cf | 2006-06-18 11:58:39 +0100 | [diff] [blame] | 1267 | # Kernel headers |
David Woodhouse | 8d730cf | 2006-06-18 11:58:39 +0100 | [diff] [blame] | 1268 | |
Sam Ravnborg | e6883b1 | 2008-06-05 16:43:46 +0200 | [diff] [blame] | 1269 | #Default location for installed headers |
| 1270 | export INSTALL_HDR_PATH = $(objtree)/usr |
| 1271 | |
Masahiro Yamada | 59b2bd0 | 2019-06-04 19:14:02 +0900 | [diff] [blame] | 1272 | quiet_cmd_headers_install = INSTALL $(INSTALL_HDR_PATH)/include |
| 1273 | cmd_headers_install = \ |
| 1274 | mkdir -p $(INSTALL_HDR_PATH); \ |
| 1275 | rsync -mrl --include='*/' --include='*\.h' --exclude='*' \ |
| 1276 | usr/include $(INSTALL_HDR_PATH) |
David Woodhouse | 6d71627 | 2006-09-24 22:16:03 +0100 | [diff] [blame] | 1277 | |
David Woodhouse | 8d730cf | 2006-06-18 11:58:39 +0100 | [diff] [blame] | 1278 | PHONY += headers_install |
Masahiro Yamada | 59b2bd0 | 2019-06-04 19:14:02 +0900 | [diff] [blame] | 1279 | headers_install: headers |
| 1280 | $(call cmd,headers_install) |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 1281 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1282 | PHONY += archheaders archscripts |
| 1283 | |
Masahiro Yamada | a5bae54 | 2019-06-04 19:14:04 +0900 | [diff] [blame] | 1284 | hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | |
Masahiro Yamada | 59b2bd0 | 2019-06-04 19:14:02 +0900 | [diff] [blame] | 1286 | PHONY += headers |
| 1287 | headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts |
Masahiro Yamada | 1b620d5 | 2022-09-01 10:12:52 +0900 | [diff] [blame] | 1288 | $(if $(filter um, $(SRCARCH)), $(error Headers not exportable for UML)) |
Masahiro Yamada | d5470d1 | 2019-06-04 19:14:03 +0900 | [diff] [blame] | 1289 | $(Q)$(MAKE) $(hdr-inst)=include/uapi |
| 1290 | $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi |
Mike Frysinger | 1f85712 | 2007-02-14 00:33:02 -0800 | [diff] [blame] | 1291 | |
Masahiro Yamada | e949f4c | 2019-06-04 19:13:59 +0900 | [diff] [blame] | 1292 | ifdef CONFIG_HEADERS_INSTALL |
Masahiro Yamada | 59b2bd0 | 2019-06-04 19:14:02 +0900 | [diff] [blame] | 1293 | prepare: headers |
Masahiro Yamada | e949f4c | 2019-06-04 19:13:59 +0900 | [diff] [blame] | 1294 | endif |
David Woodhouse | 6847535 | 2006-06-18 12:02:10 +0100 | [diff] [blame] | 1295 | |
Masahiro Yamada | bdd7714 | 2019-06-04 19:14:01 +0900 | [diff] [blame] | 1296 | PHONY += scripts_unifdef |
| 1297 | scripts_unifdef: scripts_basic |
| 1298 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef |
| 1299 | |
David Woodhouse | 8d730cf | 2006-06-18 11:58:39 +0100 | [diff] [blame] | 1300 | # --------------------------------------------------------------------------- |
Masahiro Yamada | 14ccc63 | 2021-07-29 09:12:54 +0900 | [diff] [blame] | 1301 | # Install |
| 1302 | |
| 1303 | # Many distributions have the custom install script, /sbin/installkernel. |
Randy Dunlap | 75ef312 | 2022-04-25 20:53:18 -0700 | [diff] [blame] | 1304 | # If DKMS is installed, 'make install' will eventually recurse back |
| 1305 | # to this Makefile to build and install external modules. |
Masahiro Yamada | 14ccc63 | 2021-07-29 09:12:54 +0900 | [diff] [blame] | 1306 | # Cancel sub_make_done so that options such as M=, V=, etc. are parsed. |
| 1307 | |
Masahiro Yamada | f774f5b | 2022-05-03 11:47:16 +0900 | [diff] [blame] | 1308 | quiet_cmd_install = INSTALL $(INSTALL_PATH) |
| 1309 | cmd_install = unset sub_make_done; $(srctree)/scripts/install.sh |
Masahiro Yamada | 14ccc63 | 2021-07-29 09:12:54 +0900 | [diff] [blame] | 1310 | |
| 1311 | # --------------------------------------------------------------------------- |
Masahiro Yamada | 56769ba | 2023-10-14 19:54:35 +0900 | [diff] [blame] | 1312 | # vDSO install |
| 1313 | |
| 1314 | PHONY += vdso_install |
| 1315 | vdso_install: export INSTALL_FILES = $(vdso-install-y) |
| 1316 | vdso_install: |
| 1317 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.vdsoinst |
| 1318 | |
| 1319 | # --------------------------------------------------------------------------- |
Masahiro Yamada | 1bb0b18 | 2021-05-12 15:52:00 +0900 | [diff] [blame] | 1320 | # Tools |
| 1321 | |
Josh Poimboeuf | 03f16cd | 2022-04-18 09:50:36 -0700 | [diff] [blame] | 1322 | ifdef CONFIG_OBJTOOL |
Masahiro Yamada | 0d989ac | 2021-05-12 15:52:01 +0900 | [diff] [blame] | 1323 | prepare: tools/objtool |
| 1324 | endif |
| 1325 | |
| 1326 | ifdef CONFIG_BPF |
| 1327 | ifdef CONFIG_DEBUG_INFO_BTF |
| 1328 | prepare: tools/bpf/resolve_btfids |
| 1329 | endif |
| 1330 | endif |
| 1331 | |
Masahiro Yamada | 6e6ef2d | 2024-07-18 03:28:19 +0900 | [diff] [blame] | 1332 | # The tools build system is not a part of Kbuild and tends to introduce |
| 1333 | # its own unique issues. If you need to integrate a new tool into Kbuild, |
| 1334 | # please consider locating that tool outside the tools/ tree and using the |
| 1335 | # standard Kbuild "hostprogs" syntax instead of adding a new tools/* entry |
| 1336 | # here. See Documentation/kbuild/makefiles.rst for details. |
| 1337 | |
Masahiro Yamada | 0d989ac | 2021-05-12 15:52:01 +0900 | [diff] [blame] | 1338 | PHONY += resolve_btfids_clean |
| 1339 | |
| 1340 | resolve_btfids_O = $(abspath $(objtree))/tools/bpf/resolve_btfids |
| 1341 | |
| 1342 | # tools/bpf/resolve_btfids directory might not exist |
| 1343 | # in output directory, skip its clean in that case |
| 1344 | resolve_btfids_clean: |
| 1345 | ifneq ($(wildcard $(resolve_btfids_O)),) |
| 1346 | $(Q)$(MAKE) -sC $(srctree)/tools/bpf/resolve_btfids O=$(resolve_btfids_O) clean |
| 1347 | endif |
| 1348 | |
Masahiro Yamada | 1bb0b18 | 2021-05-12 15:52:00 +0900 | [diff] [blame] | 1349 | # Clear a bunch of variables before executing the submake |
| 1350 | ifeq ($(quiet),silent_) |
| 1351 | tools_silent=s |
| 1352 | endif |
| 1353 | |
| 1354 | tools/: FORCE |
| 1355 | $(Q)mkdir -p $(objtree)/tools |
| 1356 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ |
| 1357 | |
| 1358 | tools/%: FORCE |
| 1359 | $(Q)mkdir -p $(objtree)/tools |
| 1360 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(srctree)/tools/ $* |
| 1361 | |
| 1362 | # --------------------------------------------------------------------------- |
Shuah Khan | 5a5da78 | 2014-08-07 13:07:46 -0600 | [diff] [blame] | 1363 | # Kernel selftest |
| 1364 | |
| 1365 | PHONY += kselftest |
Guillaume Tucker | 4062eba | 2022-07-13 08:33:43 +0200 | [diff] [blame] | 1366 | kselftest: headers |
Shuah Khan | 2bc8452 | 2017-09-06 16:44:35 -0600 | [diff] [blame] | 1367 | $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests |
Shuah Khan | 5a5da78 | 2014-08-07 13:07:46 -0600 | [diff] [blame] | 1368 | |
Guillaume Tucker | 4062eba | 2022-07-13 08:33:43 +0200 | [diff] [blame] | 1369 | kselftest-%: headers FORCE |
Shuah Khan | 17eac6c | 2019-09-26 16:40:14 -0600 | [diff] [blame] | 1370 | $(Q)$(MAKE) -C $(srctree)/tools/testing/selftests $* |
Wang Long | dcb825a | 2015-10-08 02:41:18 +0000 | [diff] [blame] | 1371 | |
Bamvor Jian Zhang | 3d6dee7 | 2016-01-08 15:27:34 +0800 | [diff] [blame] | 1372 | PHONY += kselftest-merge |
| 1373 | kselftest-merge: |
| 1374 | $(if $(wildcard $(objtree)/.config),, $(error No .config exists, config your kernel first!)) |
Björn Töpel | 37013b5 | 2023-10-04 14:48:37 +0200 | [diff] [blame] | 1375 | $(Q)find $(srctree)/tools/testing/selftests -name config -o -name config.$(UTS_MACHINE) | \ |
Björn Töpel | 6d3d638 | 2023-10-04 14:48:36 +0200 | [diff] [blame] | 1376 | xargs $(srctree)/scripts/kconfig/merge_config.sh -y -m $(objtree)/.config |
Masahiro Yamada | 3e4c694 | 2019-08-21 16:03:48 +0900 | [diff] [blame] | 1377 | $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig |
Bamvor Jian Zhang | 3d6dee7 | 2016-01-08 15:27:34 +0800 | [diff] [blame] | 1378 | |
Shuah Khan | 5a5da78 | 2014-08-07 13:07:46 -0600 | [diff] [blame] | 1379 | # --------------------------------------------------------------------------- |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1380 | # Devicetree files |
| 1381 | |
| 1382 | ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) |
| 1383 | dtstree := arch/$(SRCARCH)/boot/dts |
| 1384 | endif |
| 1385 | |
| 1386 | ifneq ($(dtstree),) |
| 1387 | |
Masahiro Yamada | ee47620 | 2022-07-24 18:59:19 +0900 | [diff] [blame] | 1388 | %.dtb: dtbs_prepare |
Rob Herring | 75e8953 | 2021-12-08 15:39:16 -0600 | [diff] [blame] | 1389 | $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1390 | |
Masahiro Yamada | ee47620 | 2022-07-24 18:59:19 +0900 | [diff] [blame] | 1391 | %.dtbo: dtbs_prepare |
Rob Herring | 75e8953 | 2021-12-08 15:39:16 -0600 | [diff] [blame] | 1392 | $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ |
Viresh Kumar | ce88c9c | 2021-01-29 12:54:08 +0530 | [diff] [blame] | 1393 | |
Masahiro Yamada | ee47620 | 2022-07-24 18:59:19 +0900 | [diff] [blame] | 1394 | PHONY += dtbs dtbs_prepare dtbs_install dtbs_check |
| 1395 | dtbs: dtbs_prepare |
Masahiro Yamada | 2450787 | 2024-01-09 21:07:34 +0900 | [diff] [blame] | 1396 | $(Q)$(MAKE) $(build)=$(dtstree) need-dtbslist=1 |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1397 | |
Masahiro Yamada | ee47620 | 2022-07-24 18:59:19 +0900 | [diff] [blame] | 1398 | # include/config/kernel.release is actually needed when installing DTBs because |
| 1399 | # INSTALL_DTBS_PATH contains $(KERNELRELEASE). However, we do not want to make |
| 1400 | # dtbs_install depend on it as dtbs_install may run as root. |
| 1401 | dtbs_prepare: include/config/kernel.release scripts_dtc |
| 1402 | |
Rob Herring | 75e8953 | 2021-12-08 15:39:16 -0600 | [diff] [blame] | 1403 | ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),) |
Masahiro Yamada | e10c432 | 2020-03-04 12:20:37 +0900 | [diff] [blame] | 1404 | export CHECK_DTBS=y |
Rob Herring | ec20195 | 2022-12-19 19:32:33 -0600 | [diff] [blame] | 1405 | endif |
| 1406 | |
| 1407 | ifneq ($(CHECK_DTBS),) |
Rob Herring | 604a57b | 2024-04-05 17:56:03 -0500 | [diff] [blame] | 1408 | dtbs_prepare: dt_binding_schemas |
Masahiro Yamada | b5154bf | 2020-03-04 12:20:36 +0900 | [diff] [blame] | 1409 | endif |
| 1410 | |
Masahiro Yamada | b5154bf | 2020-03-04 12:20:36 +0900 | [diff] [blame] | 1411 | dtbs_check: dtbs |
Rob Herring | 4f0e3a5 | 2018-09-06 13:26:07 -0500 | [diff] [blame] | 1412 | |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1413 | dtbs_install: |
Masahiro Yamada | 8f66864 | 2024-01-09 21:07:35 +0900 | [diff] [blame] | 1414 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.dtbinst obj=$(dtstree) |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1415 | |
| 1416 | ifdef CONFIG_OF_EARLY_FLATTREE |
| 1417 | all: dtbs |
| 1418 | endif |
| 1419 | |
| 1420 | endif |
| 1421 | |
| 1422 | PHONY += scripts_dtc |
| 1423 | scripts_dtc: scripts_basic |
| 1424 | $(Q)$(MAKE) $(build)=scripts/dtc |
| 1425 | |
Masahiro Yamada | e10c432 | 2020-03-04 12:20:37 +0900 | [diff] [blame] | 1426 | ifneq ($(filter dt_binding_check, $(MAKECMDGOALS)),) |
Rob Herring | 604a57b | 2024-04-05 17:56:03 -0500 | [diff] [blame] | 1427 | export CHECK_DTBS=y |
Masahiro Yamada | e10c432 | 2020-03-04 12:20:37 +0900 | [diff] [blame] | 1428 | endif |
| 1429 | |
Rob Herring | 604a57b | 2024-04-05 17:56:03 -0500 | [diff] [blame] | 1430 | PHONY += dt_binding_check dt_binding_schemas |
| 1431 | dt_binding_check: dt_binding_schemas scripts_dtc |
| 1432 | $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings $@ |
| 1433 | |
| 1434 | dt_binding_schemas: |
Rob Herring | 4f0e3a5 | 2018-09-06 13:26:07 -0500 | [diff] [blame] | 1435 | $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings |
| 1436 | |
Rob Herring | b6acf80 | 2022-06-30 15:37:22 -0600 | [diff] [blame] | 1437 | PHONY += dt_compatible_check |
Rob Herring | 604a57b | 2024-04-05 17:56:03 -0500 | [diff] [blame] | 1438 | dt_compatible_check: dt_binding_schemas |
Rob Herring | b6acf80 | 2022-06-30 15:37:22 -0600 | [diff] [blame] | 1439 | $(Q)$(MAKE) $(build)=Documentation/devicetree/bindings $@ |
| 1440 | |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1441 | # --------------------------------------------------------------------------- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | # Modules |
| 1443 | |
| 1444 | ifdef CONFIG_MODULES |
| 1445 | |
Sam Ravnborg | 070b98b | 2006-06-25 00:07:55 +0200 | [diff] [blame] | 1446 | # By default, build modules as well |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | |
Michal Marek | 73d1393 | 2010-03-10 12:28:58 +0100 | [diff] [blame] | 1448 | all: modules |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | |
Masahiro Yamada | 4b50c8c | 2020-05-31 17:47:06 +0900 | [diff] [blame] | 1450 | # When we're building modules with modversions, we need to consider |
| 1451 | # the built-in objects during the descend as well, in order to |
| 1452 | # make sure the checksums are up to date before we record them. |
| 1453 | ifdef CONFIG_MODVERSIONS |
| 1454 | KBUILD_BUILTIN := 1 |
| 1455 | endif |
| 1456 | |
Masahiro Yamada | 3fbb43d | 2014-04-28 16:32:43 +0900 | [diff] [blame] | 1457 | # Build modules |
Tejun Heo | 551559e | 2007-12-07 21:04:30 +0900 | [diff] [blame] | 1458 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | |
Carlos Llamas | feb113a | 2023-01-25 18:30:47 +0000 | [diff] [blame] | 1460 | # *.ko are usually independent of vmlinux, but CONFIG_DEBUG_INFO_BTF_MODULES |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1461 | # is an exception. |
| 1462 | ifdef CONFIG_DEBUG_INFO_BTF_MODULES |
Masahiro Yamada | 74d3320 | 2023-01-10 14:48:00 +0900 | [diff] [blame] | 1463 | KBUILD_BUILTIN := 1 |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1464 | modules: vmlinux |
| 1465 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1467 | modules: modules_prepare |
Michal Marek | a6c3663 | 2010-03-08 10:07:12 +0100 | [diff] [blame] | 1468 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | # Target to prepare building external modules |
Masahiro Yamada | 059bc9fc | 2018-11-29 12:56:30 +0900 | [diff] [blame] | 1470 | modules_prepare: prepare |
Masahiro Yamada | 596b047 | 2020-09-08 13:27:08 +0900 | [diff] [blame] | 1471 | $(Q)$(MAKE) $(build)=scripts scripts/module.lds |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | |
Masahiro Yamada | 8ae071f | 2023-06-15 20:17:43 +0900 | [diff] [blame] | 1473 | endif # CONFIG_MODULES |
| 1474 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | ### |
| 1476 | # Cleaning is done on three levels. |
| 1477 | # make clean Delete most generated files |
| 1478 | # Leave enough to build external modules |
| 1479 | # make mrproper Delete the current configuration, and all generated files |
| 1480 | # make distclean Remove editor backup files, patch leftover files and the like |
| 1481 | |
| 1482 | # Directories & files removed with 'make clean' |
Masahiro Yamada | 1fdd729 | 2023-08-19 20:43:01 +0900 | [diff] [blame] | 1483 | CLEAN_FILES += vmlinux.symvers modules-only.symvers \ |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1484 | modules.builtin modules.builtin.modinfo modules.nsdeps \ |
Nathan Chancellor | aba0915 | 2024-05-01 15:55:25 -0700 | [diff] [blame] | 1485 | compile_commands.json rust/test \ |
Maíra Canal | 7ea01d3 | 2023-02-03 14:37:04 -0300 | [diff] [blame] | 1486 | rust-project.json .vmlinux.objs .vmlinux.export.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | |
| 1488 | # Directories & files removed with 'make mrproper' |
Masahiro Yamada | 0663c68 | 2020-05-04 17:08:07 +0900 | [diff] [blame] | 1489 | MRPROPER_FILES += include/config include/generated \ |
Masahiro Yamada | b0d6207 | 2022-05-29 00:47:02 +0900 | [diff] [blame] | 1490 | arch/$(SRCARCH)/include/generated .objdiff \ |
Thomas Weißschuh | c857853 | 2024-07-20 11:18:12 +0200 | [diff] [blame] | 1491 | debian snap tar-install PKGBUILD pacman \ |
Masahiro Yamada | 0663c68 | 2020-05-04 17:08:07 +0900 | [diff] [blame] | 1492 | .config .config.old .version \ |
Masahiro Yamada | 4645713 | 2019-07-15 23:01:49 +0900 | [diff] [blame] | 1493 | Module.symvers \ |
Masahiro Yamada | 5cca360 | 2021-12-14 11:53:48 +0900 | [diff] [blame] | 1494 | certs/signing_key.pem \ |
Nayna Jain | b31f2a4 | 2021-04-09 10:35:05 -0400 | [diff] [blame] | 1495 | certs/x509.genkey \ |
| 1496 | vmlinux-gdb.py \ |
Masahiro Yamada | ffa46bb | 2023-09-30 19:38:47 +0900 | [diff] [blame] | 1497 | rpmbuild \ |
Masahiro Yamada | c83b16c | 2023-01-07 18:45:45 +0900 | [diff] [blame] | 1498 | rust/libmacros.so |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1499 | |
| 1500 | # clean - Delete most, but leave enough to build external modules |
| 1501 | # |
Masahiro Yamada | d98dba8 | 2024-04-28 00:32:53 +0900 | [diff] [blame] | 1502 | clean: private rm-files := $(CLEAN_FILES) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | |
Masahiro Yamada | 76cd306 | 2019-08-11 00:53:05 +0900 | [diff] [blame] | 1504 | PHONY += archclean vmlinuxclean |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | |
Pawel Moll | bd1ee80 | 2012-10-29 11:23:02 +0000 | [diff] [blame] | 1506 | vmlinuxclean: |
| 1507 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
Nicholas Piggin | fbe6e37 | 2016-08-24 22:29:21 +1000 | [diff] [blame] | 1508 | $(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) clean) |
Pawel Moll | bd1ee80 | 2012-10-29 11:23:02 +0000 | [diff] [blame] | 1509 | |
Jiri Olsa | 50d3a3f | 2021-02-05 13:40:20 +0100 | [diff] [blame] | 1510 | clean: archclean vmlinuxclean resolve_btfids_clean |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | |
| 1512 | # mrproper - Delete all generated files, including .config |
| 1513 | # |
Masahiro Yamada | d98dba8 | 2024-04-28 00:32:53 +0900 | [diff] [blame] | 1514 | mrproper: private rm-files := $(MRPROPER_FILES) |
Mauro Carvalho Chehab | cb43fb5 | 2017-05-14 11:50:01 -0300 | [diff] [blame] | 1515 | mrproper-dirs := $(addprefix _mrproper_,scripts) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1516 | |
Masahiro Yamada | b421b8a | 2019-01-14 17:29:29 +0900 | [diff] [blame] | 1517 | PHONY += $(mrproper-dirs) mrproper |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | $(mrproper-dirs): |
| 1519 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
| 1520 | |
Masahiro Yamada | b421b8a | 2019-01-14 17:29:29 +0900 | [diff] [blame] | 1521 | mrproper: clean $(mrproper-dirs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1522 | $(call cmd,rmfiles) |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1523 | @find . $(RCS_FIND_IGNORE) \ |
| 1524 | \( -name '*.rmeta' \) \ |
| 1525 | -type f -print | xargs rm -f |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1526 | |
| 1527 | # distclean |
| 1528 | # |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 1529 | PHONY += distclean |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1530 | |
| 1531 | distclean: mrproper |
Masahiro Yamada | 19c8d912 | 2021-05-04 19:10:56 +0900 | [diff] [blame] | 1532 | @find . $(RCS_FIND_IGNORE) \ |
Sam Ravnborg | 070b98b | 2006-06-25 00:07:55 +0200 | [diff] [blame] | 1533 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
Masahiro Yamada | f78271d | 2017-01-22 23:02:32 +0900 | [diff] [blame] | 1534 | -o -name '*.bak' -o -name '#*#' -o -name '*%' \ |
Masahiro Yamada | 7a02cec | 2021-05-04 19:10:57 +0900 | [diff] [blame] | 1535 | -o -name 'core' -o -name tags -o -name TAGS -o -name 'cscope*' \ |
| 1536 | -o -name GPATH -o -name GRTAGS -o -name GSYMS -o -name GTAGS \) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1537 | -type f -print | xargs rm -f |
| 1538 | |
| 1539 | |
| 1540 | # Packaging of the kernel to various formats |
| 1541 | # --------------------------------------------------------------------------- |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | |
Arnaldo Carvalho de Melo | bafb674 | 2010-06-07 07:44:25 -0300 | [diff] [blame] | 1543 | %src-pkg: FORCE |
Masahiro Yamada | 000ec95 | 2019-08-21 16:02:04 +0900 | [diff] [blame] | 1544 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@ |
Zach Brown | 031ecc6 | 2006-06-08 22:12:37 -0700 | [diff] [blame] | 1545 | %pkg: include/config/kernel.release FORCE |
Masahiro Yamada | 000ec95 | 2019-08-21 16:02:04 +0900 | [diff] [blame] | 1546 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.package $@ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1547 | |
| 1548 | # Brief documentation of the typical targets used |
| 1549 | # --------------------------------------------------------------------------- |
| 1550 | |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1551 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
Konstantin Khlebnikov | a1e7b7b | 2014-10-28 17:18:20 +0400 | [diff] [blame] | 1552 | boards := $(sort $(notdir $(boards))) |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1553 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
| 1554 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1555 | |
Masahiro Yamada | fe69b42 | 2016-03-13 09:39:55 +0900 | [diff] [blame] | 1556 | PHONY += help |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | help: |
| 1558 | @echo 'Cleaning targets:' |
Samuel Tardieu | 5ea084e | 2006-12-12 19:09:40 +0100 | [diff] [blame] | 1559 | @echo ' clean - Remove most generated files but keep the config and' |
Jesper Juhl | 5cc8d24 | 2006-09-24 14:01:08 +0200 | [diff] [blame] | 1560 | @echo ' enough build support to build external modules' |
Samuel Tardieu | 5ea084e | 2006-12-12 19:09:40 +0100 | [diff] [blame] | 1561 | @echo ' mrproper - Remove all generated files + config + various backup files' |
Jesper Juhl | 5cc8d24 | 2006-09-24 14:01:08 +0200 | [diff] [blame] | 1562 | @echo ' distclean - mrproper + remove editor backup and patch files' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1563 | @echo '' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1564 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
| 1565 | @echo '' |
| 1566 | @echo 'Other generic targets:' |
| 1567 | @echo ' all - Build all targets marked with [*]' |
| 1568 | @echo '* vmlinux - Build the bare kernel' |
| 1569 | @echo '* modules - Build all modules' |
Bodo Eggert | 9cc5d74 | 2005-11-23 20:11:34 +0100 | [diff] [blame] | 1570 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
Masahiro Yamada | 56769ba | 2023-10-14 19:54:35 +0900 | [diff] [blame] | 1571 | @echo ' vdso_install - Install unstripped vdso to INSTALL_MOD_PATH (default: /)' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1572 | @echo ' dir/ - Build all files in dir and below' |
Wang YanQing | 40ab87a4 | 2015-12-11 00:35:19 +0800 | [diff] [blame] | 1573 | @echo ' dir/file.[ois] - Build specified target only' |
Vinícius Tinti | 433db3e | 2017-04-24 13:04:58 -0700 | [diff] [blame] | 1574 | @echo ' dir/file.ll - Build the LLVM assembly file' |
| 1575 | @echo ' (requires compiler support for LLVM assembly generation)' |
Joe Perches | 6271897 | 2010-01-13 09:31:44 -0800 | [diff] [blame] | 1576 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
| 1577 | @echo ' (requires a recent binutils and recent build (System.map))' |
Sam Ravnborg | 155ad60 | 2005-07-07 17:56:08 -0700 | [diff] [blame] | 1578 | @echo ' dir/file.ko - Build module including final link' |
Robert P. J. Day | c4d5ee6 | 2009-04-24 12:35:23 -0400 | [diff] [blame] | 1579 | @echo ' modules_prepare - Set up for building external modules' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1580 | @echo ' tags/TAGS - Generate tags file for editors' |
| 1581 | @echo ' cscope - Generate cscope index' |
Jianbin Kang | f4ed100 | 2011-01-14 20:07:05 +0800 | [diff] [blame] | 1582 | @echo ' gtags - Generate GNU GLOBAL index' |
Michal Marek | 3f1d9a6 | 2014-07-11 15:57:24 +0200 | [diff] [blame] | 1583 | @echo ' kernelrelease - Output the release version string (use with make -s)' |
| 1584 | @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' |
| 1585 | @echo ' image_name - Output the image name (use with make -s)' |
Sam Ravnborg | 2fb9b1b | 2008-06-21 00:24:17 +0200 | [diff] [blame] | 1586 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
Geert Uytterhoeven | 59df323 | 2007-01-29 13:47:01 +0100 | [diff] [blame] | 1587 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
Sam Ravnborg | 2fb9b1b | 2008-06-21 00:24:17 +0200 | [diff] [blame] | 1588 | echo '' |
Randy Dunlap | 31b8cc8 | 2017-05-08 15:55:08 -0700 | [diff] [blame] | 1589 | @echo 'Static analysers:' |
Heiko Carstens | 66242cf | 2023-11-20 19:37:19 +0100 | [diff] [blame] | 1590 | @echo ' checkstack - Generate a list of stack hogs and consider all functions' |
| 1591 | @echo ' with a stack size larger than MINSTACKSIZE (default: 100)' |
Sam Ravnborg | aa025e7 | 2007-11-14 21:34:55 +0100 | [diff] [blame] | 1592 | @echo ' versioncheck - Sanity check on version.h usage' |
Randy Dunlap | ec2d987 | 2007-11-04 12:01:55 -0800 | [diff] [blame] | 1593 | @echo ' includecheck - Check for duplicate included header files' |
Adrian Bunk | 295ac05 | 2007-08-24 23:04:56 +0200 | [diff] [blame] | 1594 | @echo ' export_report - List the usages of all exported symbols' |
Nicolas Palix | 74425ee | 2010-06-06 17:15:01 +0200 | [diff] [blame] | 1595 | @echo ' headerdep - Detect inclusion cycles in headers' |
Masahiro Yamada | 7f855fc8 | 2017-11-14 18:47:20 +0900 | [diff] [blame] | 1596 | @echo ' coccicheck - Check with Coccinelle' |
Nathan Huckleberry | 6ad7cbc | 2020-08-22 23:56:18 +0900 | [diff] [blame] | 1597 | @echo ' clang-analyzer - Check with clang static analyzer' |
| 1598 | @echo ' clang-tidy - Check with clang-tidy' |
Nicolas Palix | 74425ee | 2010-06-06 17:15:01 +0200 | [diff] [blame] | 1599 | @echo '' |
Matthias Maennich | eb8305a | 2019-09-06 11:32:32 +0100 | [diff] [blame] | 1600 | @echo 'Tools:' |
| 1601 | @echo ' nsdeps - Generate missing symbol namespace dependencies' |
| 1602 | @echo '' |
Randy Dunlap | 31b8cc8 | 2017-05-08 15:55:08 -0700 | [diff] [blame] | 1603 | @echo 'Kernel selftest:' |
Shuah Khan | e51d8da | 2020-03-30 12:07:11 -0600 | [diff] [blame] | 1604 | @echo ' kselftest - Build and run kernel selftest' |
| 1605 | @echo ' Build, install, and boot kernel before' |
| 1606 | @echo ' running kselftest on it' |
| 1607 | @echo ' Run as root for full coverage' |
| 1608 | @echo ' kselftest-all - Build kernel selftest' |
| 1609 | @echo ' kselftest-install - Build and install kernel selftest' |
| 1610 | @echo ' kselftest-clean - Remove all generated kselftest files' |
| 1611 | @echo ' kselftest-merge - Merge all the config dependencies of' |
| 1612 | @echo ' kselftest to existing .config.' |
Shuah Khan | 5a5da78 | 2014-08-07 13:07:46 -0600 | [diff] [blame] | 1613 | @echo '' |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1614 | @echo 'Rust targets:' |
| 1615 | @echo ' rustavailable - Checks whether the Rust toolchain is' |
| 1616 | @echo ' available and, if not, explains why.' |
| 1617 | @echo ' rustfmt - Reformat all the Rust code in the kernel' |
| 1618 | @echo ' rustfmtcheck - Checks if all the Rust code in the kernel' |
| 1619 | @echo ' is formatted, printing a diff otherwise.' |
| 1620 | @echo ' rustdoc - Generate Rust documentation' |
| 1621 | @echo ' (requires kernel .config)' |
| 1622 | @echo ' rusttest - Runs the Rust tests' |
| 1623 | @echo ' (requires kernel .config; downloads external repos)' |
| 1624 | @echo ' rust-analyzer - Generate rust-project.json rust-analyzer support file' |
| 1625 | @echo ' (requires kernel .config)' |
| 1626 | @echo ' dir/file.[os] - Build specified target only' |
| 1627 | @echo ' dir/file.rsi - Build macro expanded source, similar to C preprocessing.' |
| 1628 | @echo ' Run with RUSTFMT=n to skip reformatting if needed.' |
| 1629 | @echo ' The output is not intended to be compilable.' |
| 1630 | @echo ' dir/file.ll - Build the LLVM assembly file' |
| 1631 | @echo '' |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1632 | @$(if $(dtstree), \ |
| 1633 | echo 'Devicetree:'; \ |
Rob Herring | 604a57b | 2024-04-05 17:56:03 -0500 | [diff] [blame] | 1634 | echo '* dtbs - Build device tree blobs for enabled boards'; \ |
| 1635 | echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'; \ |
| 1636 | echo ' dt_binding_check - Validate device tree binding documents and examples'; \ |
| 1637 | echo ' dt_binding_schema - Build processed device tree binding schemas'; \ |
| 1638 | echo ' dtbs_check - Validate device tree source files';\ |
Rob Herring | 37c8a5f | 2018-01-10 15:19:37 -0600 | [diff] [blame] | 1639 | echo '') |
| 1640 | |
Randy Dunlap | 31b8cc8 | 2017-05-08 15:55:08 -0700 | [diff] [blame] | 1641 | @echo 'Userspace tools targets:' |
| 1642 | @echo ' use "make tools/help"' |
| 1643 | @echo ' or "cd tools; make help"' |
| 1644 | @echo '' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | @echo 'Kernel packaging:' |
Masahiro Yamada | 000ec95 | 2019-08-21 16:02:04 +0900 | [diff] [blame] | 1646 | @$(MAKE) -f $(srctree)/scripts/Makefile.package help |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | @echo '' |
| 1648 | @echo 'Documentation targets:' |
Mauro Carvalho Chehab | cb43fb5 | 2017-05-14 11:50:01 -0300 | [diff] [blame] | 1649 | @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | @echo '' |
Simon Glass | 766b700 | 2023-10-26 20:26:23 +1300 | [diff] [blame] | 1651 | @echo 'Architecture-specific targets ($(SRCARCH)):' |
Masahiro Yamada | 5c81664 | 2022-02-11 14:14:11 +0900 | [diff] [blame] | 1652 | @$(or $(archhelp),\ |
Simon Glass | 766b700 | 2023-10-26 20:26:23 +1300 | [diff] [blame] | 1653 | echo ' No architecture-specific help defined for $(SRCARCH)') |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1654 | @echo '' |
| 1655 | @$(if $(boards), \ |
| 1656 | $(foreach b, $(boards), \ |
Geert Uytterhoeven | 4234448 | 2019-10-25 13:53:05 +0200 | [diff] [blame] | 1657 | printf " %-27s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1658 | echo '') |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1659 | @$(if $(board-dirs), \ |
| 1660 | $(foreach b, $(board-dirs), \ |
| 1661 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
| 1662 | printf " %-16s - Show all of the above\\n" help-boards; \ |
| 1663 | echo '') |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1664 | |
Masahiro Yamada | 83d98d7 | 2022-12-23 01:25:35 +0900 | [diff] [blame] | 1665 | @echo ' make V=n [targets] 1: verbose build' |
Masahiro Yamada | 6ae4b98 | 2022-12-23 01:25:34 +0900 | [diff] [blame] | 1666 | @echo ' 2: give reason for rebuild of target' |
| 1667 | @echo ' V=1 and V=2 can be combined with V=12' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
Geert Uytterhoeven | a64c044 | 2019-10-25 13:52:32 +0200 | [diff] [blame] | 1669 | @echo ' make C=1 [targets] Check re-compiled c source with $$CHECK' |
| 1670 | @echo ' (sparse by default)' |
Dustin Kirkland | 701842e | 2006-05-23 15:57:23 -0500 | [diff] [blame] | 1671 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
Ingo Molnar | af07ce3 | 2011-06-16 13:26:23 +0200 | [diff] [blame] | 1672 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
Masahiro Yamada | 8987617 | 2024-01-20 17:32:55 +0900 | [diff] [blame] | 1673 | @echo ' make W=n [targets] Enable extra build checks, n=1,2,3,c,e where' |
Sam Ravnborg | 28bc20d | 2011-04-27 22:15:27 +0200 | [diff] [blame] | 1674 | @echo ' 1: warnings which may be relevant and do not occur too often' |
| 1675 | @echo ' 2: warnings which occur quite often but may still be relevant' |
| 1676 | @echo ' 3: more obscure warnings, can most likely be ignored' |
Masahiro Yamada | 92ef432 | 2023-11-23 18:05:40 +0900 | [diff] [blame] | 1677 | @echo ' c: extra checks in the configuration stage (Kconfig)' |
Yann Droneaud | c77d06e | 2022-04-08 10:46:07 +0200 | [diff] [blame] | 1678 | @echo ' e: warnings are being treated as errors' |
Michal Marek | a6de553 | 2011-04-29 14:45:31 +0200 | [diff] [blame] | 1679 | @echo ' Multiple levels can be combined with W=12 or W=123' |
Rob Herring | ec20195 | 2022-12-19 19:32:33 -0600 | [diff] [blame] | 1680 | @$(if $(dtstree), \ |
| 1681 | echo ' make CHECK_DTBS=1 [targets] Check all generated dtb files against schema'; \ |
| 1682 | echo ' This can be applied both to "dtbs" and to individual "foo.dtb" targets' ; \ |
| 1683 | ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | @echo '' |
| 1685 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
| 1686 | @echo 'For further info see the ./README file' |
| 1687 | |
| 1688 | |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1689 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
| 1690 | |
| 1691 | help-boards: $(help-board-dirs) |
| 1692 | |
Michal Marek | fbae4d5 | 2014-11-28 13:31:43 +0100 | [diff] [blame] | 1693 | boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))) |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1694 | |
| 1695 | $(help-board-dirs): help-%: |
Simon Glass | 766b700 | 2023-10-26 20:26:23 +1300 | [diff] [blame] | 1696 | @echo 'Architecture-specific targets ($(SRCARCH) $*):' |
Segher Boessenkool | 5dffbe8 | 2008-04-06 22:16:07 +0200 | [diff] [blame] | 1697 | @$(if $(boards-per-dir), \ |
| 1698 | $(foreach b, $(boards-per-dir), \ |
| 1699 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
| 1700 | echo '') |
| 1701 | |
| 1702 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1703 | # Documentation targets |
| 1704 | # --------------------------------------------------------------------------- |
Jani Nikula | e893922 | 2017-10-09 18:26:15 +0300 | [diff] [blame] | 1705 | DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ |
Maxim Cournoyer | 1f050e9 | 2022-11-16 14:02:09 -0500 | [diff] [blame] | 1706 | linkcheckdocs dochelp refcheckdocs texinfodocs infodocs |
Jani Nikula | 22cba31 | 2016-05-19 15:14:05 +0300 | [diff] [blame] | 1707 | PHONY += $(DOC_TARGETS) |
Masahiro Yamada | bc7b752a | 2019-08-22 02:33:21 +0900 | [diff] [blame] | 1708 | $(DOC_TARGETS): |
Mauro Carvalho Chehab | cb43fb5 | 2017-05-14 11:50:01 -0300 | [diff] [blame] | 1709 | $(Q)$(MAKE) $(build)=Documentation $@ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1711 | |
| 1712 | # Rust targets |
| 1713 | # --------------------------------------------------------------------------- |
| 1714 | |
| 1715 | # "Is Rust available?" target |
| 1716 | PHONY += rustavailable |
| 1717 | rustavailable: |
Miguel Ojeda | ecab411 | 2024-02-17 01:26:37 +0100 | [diff] [blame] | 1718 | +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh && echo "Rust is available!" |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1719 | |
| 1720 | # Documentation target |
| 1721 | # |
| 1722 | # Using the singular to avoid running afoul of `no-dot-config-targets`. |
| 1723 | PHONY += rustdoc |
| 1724 | rustdoc: prepare |
| 1725 | $(Q)$(MAKE) $(build)=rust $@ |
| 1726 | |
| 1727 | # Testing target |
| 1728 | PHONY += rusttest |
| 1729 | rusttest: prepare |
| 1730 | $(Q)$(MAKE) $(build)=rust $@ |
| 1731 | |
| 1732 | # Formatting targets |
| 1733 | PHONY += rustfmt rustfmtcheck |
| 1734 | |
| 1735 | # We skip `rust/alloc` since we want to minimize the diff w.r.t. upstream. |
| 1736 | # |
| 1737 | # We match using absolute paths since `find` does not resolve them |
| 1738 | # when matching, which is a problem when e.g. `srctree` is `..`. |
| 1739 | # We `grep` afterwards in order to remove the directory entry itself. |
| 1740 | rustfmt: |
| 1741 | $(Q)find $(abs_srctree) -type f -name '*.rs' \ |
| 1742 | -o -path $(abs_srctree)/rust/alloc -prune \ |
| 1743 | -o -path $(abs_objtree)/rust/test -prune \ |
| 1744 | | grep -Fv $(abs_srctree)/rust/alloc \ |
| 1745 | | grep -Fv $(abs_objtree)/rust/test \ |
| 1746 | | grep -Fv generated \ |
| 1747 | | xargs $(RUSTFMT) $(rustfmt_flags) |
| 1748 | |
| 1749 | rustfmtcheck: rustfmt_flags = --check |
| 1750 | rustfmtcheck: rustfmt |
| 1751 | |
Masahiro Yamada | 67274c0 | 2019-02-19 18:33:02 +0900 | [diff] [blame] | 1752 | # Misc |
| 1753 | # --------------------------------------------------------------------------- |
| 1754 | |
Masahiro Yamada | 91ecf7f | 2022-12-29 16:43:10 +0900 | [diff] [blame] | 1755 | PHONY += misc-check |
| 1756 | misc-check: |
| 1757 | $(Q)$(srctree)/scripts/misc-check |
| 1758 | |
| 1759 | all: misc-check |
| 1760 | |
Masahiro Yamada | 67274c0 | 2019-02-19 18:33:02 +0900 | [diff] [blame] | 1761 | PHONY += scripts_gdb |
Masahiro Yamada | 7a739ce | 2019-06-04 19:13:57 +0900 | [diff] [blame] | 1762 | scripts_gdb: prepare0 |
Masahiro Yamada | 1e5ff84 | 2019-02-19 18:33:04 +0900 | [diff] [blame] | 1763 | $(Q)$(MAKE) $(build)=scripts/gdb |
Masahiro Yamada | 8d2e520 | 2019-02-19 18:33:05 +0900 | [diff] [blame] | 1764 | $(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py) |
Masahiro Yamada | 67274c0 | 2019-02-19 18:33:02 +0900 | [diff] [blame] | 1765 | |
| 1766 | ifdef CONFIG_GDB_SCRIPTS |
| 1767 | all: scripts_gdb |
| 1768 | endif |
| 1769 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | else # KBUILD_EXTMOD |
| 1771 | |
Tzafrir Cohen | c753ccb | 2023-03-14 15:02:48 +0200 | [diff] [blame] | 1772 | filechk_kernel.release = echo $(KERNELRELEASE) |
| 1773 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | ### |
| 1775 | # External module support. |
| 1776 | # When building external modules the kernel used as basis is considered |
| 1777 | # read-only, and no consistency checks are made and the make |
| 1778 | # system is not used on the basis kernel. If updates are required |
Masahiro Yamada | 11122b8 | 2021-05-04 19:10:58 +0900 | [diff] [blame] | 1779 | # in the basis kernel ordinary make commands (without M=...) must be used. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | |
Masahiro Yamada | 6212804 | 2020-09-09 05:55:57 +0900 | [diff] [blame] | 1781 | # We are always building only modules. |
| 1782 | KBUILD_BUILTIN := |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1783 | KBUILD_MODULES := 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1785 | build-dir := $(KBUILD_EXTMOD) |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1786 | |
Masahiro Yamada | 7f69180 | 2021-03-31 22:38:06 +0900 | [diff] [blame] | 1787 | compile_commands.json: $(extmod_prefix)compile_commands.json |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1788 | PHONY += compile_commands.json |
| 1789 | |
Masahiro Yamada | 76cd306 | 2019-08-11 00:53:05 +0900 | [diff] [blame] | 1790 | clean-dirs := $(KBUILD_EXTMOD) |
Masahiro Yamada | d98dba8 | 2024-04-28 00:32:53 +0900 | [diff] [blame] | 1791 | clean: private rm-files := $(KBUILD_EXTMOD)/Module.symvers $(KBUILD_EXTMOD)/modules.nsdeps \ |
Nathan Chancellor | aba0915 | 2024-05-01 15:55:25 -0700 | [diff] [blame] | 1792 | $(KBUILD_EXTMOD)/compile_commands.json |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | |
Masahiro Yamada | 6072b2c | 2021-08-01 11:53:46 +0900 | [diff] [blame] | 1794 | PHONY += prepare |
| 1795 | # now expand this into a simple variable to reduce the cost of shell evaluations |
| 1796 | prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT) |
| 1797 | prepare: |
Masahiro Yamada | 129ab0d | 2021-12-14 11:53:53 +0900 | [diff] [blame] | 1798 | @if [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \ |
Masahiro Yamada | 6072b2c | 2021-08-01 11:53:46 +0900 | [diff] [blame] | 1799 | echo >&2 "warning: the compiler differs from the one used to build the kernel"; \ |
Masahiro Yamada | 129ab0d | 2021-12-14 11:53:53 +0900 | [diff] [blame] | 1800 | echo >&2 " The kernel was built by: $(CONFIG_CC_VERSION_TEXT)"; \ |
Masahiro Yamada | 6072b2c | 2021-08-01 11:53:46 +0900 | [diff] [blame] | 1801 | echo >&2 " You are using: $(CC_VERSION_TEXT)"; \ |
| 1802 | fi |
| 1803 | |
Masahiro Yamada | fe69b42 | 2016-03-13 09:39:55 +0900 | [diff] [blame] | 1804 | PHONY += help |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | help: |
| 1806 | @echo ' Building external modules.' |
| 1807 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
| 1808 | @echo '' |
| 1809 | @echo ' modules - default target, build the module(s)' |
| 1810 | @echo ' modules_install - install the module' |
| 1811 | @echo ' clean - remove generated files in module directory only' |
Vinay Varma | 49a9ef7 | 2023-04-11 17:17:15 +0800 | [diff] [blame] | 1812 | @echo ' rust-analyzer - generate rust-project.json rust-analyzer support file' |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | @echo '' |
Sam Ravnborg | 06300b2 | 2006-01-25 07:13:18 +0100 | [diff] [blame] | 1814 | |
Masahiro Yamada | 5e02797 | 2023-08-23 20:50:46 +0900 | [diff] [blame] | 1815 | ifndef CONFIG_MODULES |
| 1816 | modules modules_install: __external_modules_error |
Masahiro Yamada | 8ae071f | 2023-06-15 20:17:43 +0900 | [diff] [blame] | 1817 | __external_modules_error: |
| 1818 | @echo >&2 '***' |
| 1819 | @echo >&2 '*** The present kernel disabled CONFIG_MODULES.' |
| 1820 | @echo >&2 '*** You cannot build or install external modules.' |
| 1821 | @echo >&2 '***' |
| 1822 | @false |
Masahiro Yamada | 5e02797 | 2023-08-23 20:50:46 +0900 | [diff] [blame] | 1823 | endif |
Masahiro Yamada | 8ae071f | 2023-06-15 20:17:43 +0900 | [diff] [blame] | 1824 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1825 | endif # KBUILD_EXTMOD |
| 1826 | |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1827 | # --------------------------------------------------------------------------- |
| 1828 | # Modules |
| 1829 | |
Masahiro Yamada | 151aeca | 2023-08-23 20:50:48 +0900 | [diff] [blame] | 1830 | PHONY += modules modules_install modules_sign modules_prepare |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1831 | |
Masahiro Yamada | 5e02797 | 2023-08-23 20:50:46 +0900 | [diff] [blame] | 1832 | modules_install: |
Masahiro Yamada | 151aeca | 2023-08-23 20:50:48 +0900 | [diff] [blame] | 1833 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst \ |
| 1834 | sign-only=$(if $(filter modules_install,$(MAKECMDGOALS)),,y) |
| 1835 | |
| 1836 | ifeq ($(CONFIG_MODULE_SIG),y) |
| 1837 | # modules_sign is a subset of modules_install. |
| 1838 | # 'make modules_install modules_sign' is equivalent to 'make modules_install'. |
| 1839 | modules_sign: modules_install |
| 1840 | @: |
| 1841 | else |
| 1842 | modules_sign: |
| 1843 | @echo >&2 '***' |
| 1844 | @echo >&2 '*** CONFIG_MODULE_SIG is disabled. You cannot sign modules.' |
| 1845 | @echo >&2 '***' |
| 1846 | @false |
| 1847 | endif |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1848 | |
| 1849 | ifdef CONFIG_MODULES |
| 1850 | |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1851 | $(MODORDER): $(build-dir) |
| 1852 | @: |
| 1853 | |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1854 | # KBUILD_MODPOST_NOFINAL can be set to skip the final link of modules. |
| 1855 | # This is solely useful to speed up test compiles. |
| 1856 | modules: modpost |
| 1857 | ifneq ($(KBUILD_MODPOST_NOFINAL),1) |
| 1858 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal |
| 1859 | endif |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1860 | |
Masahiro Yamada | 1a998be | 2021-03-31 22:38:05 +0900 | [diff] [blame] | 1861 | PHONY += modules_check |
| 1862 | modules_check: $(MODORDER) |
| 1863 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh $< |
| 1864 | |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1865 | else # CONFIG_MODULES |
| 1866 | |
Masahiro Yamada | 5e02797 | 2023-08-23 20:50:46 +0900 | [diff] [blame] | 1867 | modules: |
Masahiro Yamada | 8ae071f | 2023-06-15 20:17:43 +0900 | [diff] [blame] | 1868 | @: |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1869 | |
Masahiro Yamada | f110e5a | 2022-08-28 11:39:50 +0900 | [diff] [blame] | 1870 | KBUILD_MODULES := |
| 1871 | |
Masahiro Yamada | 3e3005d | 2021-03-31 22:38:03 +0900 | [diff] [blame] | 1872 | endif # CONFIG_MODULES |
| 1873 | |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1874 | PHONY += modpost |
| 1875 | modpost: $(if $(single-build),, $(if $(KBUILD_BUILTIN), vmlinux.o)) \ |
| 1876 | $(if $(KBUILD_MODULES), modules_check) |
| 1877 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1878 | |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1879 | # Single targets |
| 1880 | # --------------------------------------------------------------------------- |
| 1881 | # To build individual files in subdirectories, you can do like this: |
| 1882 | # |
| 1883 | # make foo/bar/baz.s |
| 1884 | # |
| 1885 | # The supported suffixes for single-target are listed in 'single-targets' |
| 1886 | # |
| 1887 | # To build only under specific subdirectories, you can do like this: |
| 1888 | # |
| 1889 | # make foo/bar/baz/ |
| 1890 | |
| 1891 | ifdef single-build |
| 1892 | |
| 1893 | # .ko is special because modpost is needed |
| 1894 | single-ko := $(sort $(filter %.ko, $(MAKECMDGOALS))) |
Masahiro Yamada | fc93a4c | 2022-04-07 00:30:22 +0900 | [diff] [blame] | 1895 | single-no-ko := $(filter-out $(single-ko), $(MAKECMDGOALS)) \ |
| 1896 | $(foreach x, o mod, $(patsubst %.ko, %.$x, $(single-ko))) |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1897 | |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1898 | $(single-ko): single_modules |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1899 | @: |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1900 | $(single-no-ko): $(build-dir) |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1901 | @: |
| 1902 | |
Masahiro Yamada | f110e5a | 2022-08-28 11:39:50 +0900 | [diff] [blame] | 1903 | # Remove MODORDER when done because it is not the real one. |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1904 | PHONY += single_modules |
| 1905 | single_modules: $(single-no-ko) modules_prepare |
Masahiro Yamada | a53da43 | 2023-01-01 15:07:09 +0900 | [diff] [blame] | 1906 | $(Q){ $(foreach m, $(single-ko), echo $(extmod_prefix)$(m:%.ko=%.o);) } > $(MODORDER) |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1907 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
Masahiro Yamada | f73edc8 | 2022-09-25 03:19:13 +0900 | [diff] [blame] | 1908 | ifneq ($(KBUILD_MODPOST_NOFINAL),1) |
| 1909 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal |
| 1910 | endif |
Masahiro Yamada | f110e5a | 2022-08-28 11:39:50 +0900 | [diff] [blame] | 1911 | $(Q)rm -f $(MODORDER) |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1912 | |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1913 | single-goals := $(addprefix $(build-dir)/, $(single-no-ko)) |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1914 | |
Masahiro Yamada | 3753af7 | 2022-10-15 05:18:11 +0900 | [diff] [blame] | 1915 | KBUILD_MODULES := 1 |
| 1916 | |
Masahiro Yamada | b1fbfcb | 2019-11-18 13:52:47 +0900 | [diff] [blame] | 1917 | endif |
| 1918 | |
Masahiro Yamada | c99f391 | 2019-08-11 00:53:04 +0900 | [diff] [blame] | 1919 | # Preset locale variables to speed up the build process. Limit locale |
| 1920 | # tweaks to this spot to avoid wrong language settings when running |
| 1921 | # make menuconfig etc. |
| 1922 | # Error messages still appears in the original language |
Masahiro Yamada | 5750121 | 2022-09-25 03:19:10 +0900 | [diff] [blame] | 1923 | PHONY += $(build-dir) |
| 1924 | $(build-dir): prepare |
| 1925 | $(Q)$(MAKE) $(build)=$@ need-builtin=1 need-modorder=1 $(single-goals) |
Masahiro Yamada | c99f391 | 2019-08-11 00:53:04 +0900 | [diff] [blame] | 1926 | |
Masahiro Yamada | 76cd306 | 2019-08-11 00:53:05 +0900 | [diff] [blame] | 1927 | clean-dirs := $(addprefix _clean_, $(clean-dirs)) |
| 1928 | PHONY += $(clean-dirs) clean |
| 1929 | $(clean-dirs): |
| 1930 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1931 | |
Michal Marek | 88d7be0 | 2010-09-06 12:00:08 +0200 | [diff] [blame] | 1932 | clean: $(clean-dirs) |
Michal Marek | 88d7be0 | 2010-09-06 12:00:08 +0200 | [diff] [blame] | 1933 | $(call cmd,rmfiles) |
Masahiro Yamada | 5c81664 | 2022-02-11 14:14:11 +0900 | [diff] [blame] | 1934 | @find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 1935 | \( -name '*.[aios]' -o -name '*.rsi' -o -name '*.ko' -o -name '.*.cmd' \ |
Rob Herring | 4f0e3a5 | 2018-09-06 13:26:07 -0500 | [diff] [blame] | 1936 | -o -name '*.ko.*' \ |
Andrew Davis | dcad240 | 2022-11-14 14:59:39 -0600 | [diff] [blame] | 1937 | -o -name '*.dtb' -o -name '*.dtbo' \ |
| 1938 | -o -name '*.dtb.S' -o -name '*.dtbo.S' \ |
Masahiro Yamada | 2450787 | 2024-01-09 21:07:34 +0900 | [diff] [blame] | 1939 | -o -name '*.dt.yaml' -o -name 'dtbs-list' \ |
Masahiro Yamada | ef46d9b | 2017-11-17 01:49:13 +0900 | [diff] [blame] | 1940 | -o -name '*.dwo' -o -name '*.lst' \ |
Masahiro Yamada | 5e9e95cc9 | 2023-06-12 00:50:57 +0900 | [diff] [blame] | 1941 | -o -name '*.su' -o -name '*.mod' \ |
Michal Marek | 88d7be0 | 2010-09-06 12:00:08 +0200 | [diff] [blame] | 1942 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
Masahiro Yamada | 9a8dfb3 | 2018-03-23 22:04:31 +0900 | [diff] [blame] | 1943 | -o -name '*.lex.c' -o -name '*.tab.[ch]' \ |
Masahiro Yamada | 4fa8bc9 | 2018-03-23 22:04:37 +0900 | [diff] [blame] | 1944 | -o -name '*.asn1.[ch]' \ |
Michal Marek | 88d7be0 | 2010-09-06 12:00:08 +0200 | [diff] [blame] | 1945 | -o -name '*.symtypes' -o -name 'modules.order' \ |
Emese Revfy | 6b90bd4 | 2016-05-24 00:09:38 +0200 | [diff] [blame] | 1946 | -o -name '*.c.[012]*.*' \ |
Vinícius Tinti | 433db3e | 2017-04-24 13:04:58 -0700 | [diff] [blame] | 1947 | -o -name '*.ll' \ |
Sami Tolvanen | 38e8918 | 2020-12-11 10:46:20 -0800 | [diff] [blame] | 1948 | -o -name '*.gcno' \ |
Thomas Weißschuh | 9c73bcf | 2023-01-18 05:05:34 +0000 | [diff] [blame] | 1949 | -o -name '*.*.symversions' \) -type f -print \ |
| 1950 | -o -name '.tmp_*' -print \ |
| 1951 | | xargs rm -rf |
Michal Marek | 88d7be0 | 2010-09-06 12:00:08 +0200 | [diff] [blame] | 1952 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1953 | # Generate tags for editors |
| 1954 | # --------------------------------------------------------------------------- |
Sam Ravnborg | a680eed | 2008-12-03 22:24:13 +0100 | [diff] [blame] | 1955 | quiet_cmd_tags = GEN $@ |
Masahiro Yamada | 858805b | 2019-08-25 22:28:37 +0900 | [diff] [blame] | 1956 | cmd_tags = $(BASH) $(srctree)/scripts/tags.sh $@ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1957 | |
Jianbin Kang | f4ed100 | 2011-01-14 20:07:05 +0800 | [diff] [blame] | 1958 | tags TAGS cscope gtags: FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1959 | $(call cmd,tags) |
| 1960 | |
John Hubbard | 5045b460 | 2024-06-27 17:43:56 -0700 | [diff] [blame] | 1961 | # Generate rust-project.json (a file that describes the structure of non-Cargo |
| 1962 | # Rust projects) for rust-analyzer (an implementation of the Language Server |
| 1963 | # Protocol). |
Vinay Varma | 49a9ef7 | 2023-04-11 17:17:15 +0800 | [diff] [blame] | 1964 | PHONY += rust-analyzer |
| 1965 | rust-analyzer: |
John Hubbard | 6dc9d9c | 2024-06-27 17:43:55 -0700 | [diff] [blame] | 1966 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh |
Vinay Varma | 49a9ef7 | 2023-04-11 17:17:15 +0800 | [diff] [blame] | 1967 | $(Q)$(MAKE) $(build)=rust $@ |
| 1968 | |
Matthias Maennich | eb8305a | 2019-09-06 11:32:32 +0100 | [diff] [blame] | 1969 | # Script to generate missing namespace dependencies |
| 1970 | # --------------------------------------------------------------------------- |
| 1971 | |
| 1972 | PHONY += nsdeps |
Masahiro Yamada | bff9c62 | 2019-10-29 21:38:06 +0900 | [diff] [blame] | 1973 | nsdeps: export KBUILD_NSDEPS=1 |
Matthias Maennich | eb8305a | 2019-09-06 11:32:32 +0100 | [diff] [blame] | 1974 | nsdeps: modules |
Masahiro Yamada | bff9c62 | 2019-10-29 21:38:06 +0900 | [diff] [blame] | 1975 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/nsdeps |
Matthias Maennich | eb8305a | 2019-09-06 11:32:32 +0100 | [diff] [blame] | 1976 | |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1977 | # Clang Tooling |
| 1978 | # --------------------------------------------------------------------------- |
| 1979 | |
| 1980 | quiet_cmd_gen_compile_commands = GEN $@ |
| 1981 | cmd_gen_compile_commands = $(PYTHON3) $< -a $(AR) -o $@ $(filter-out $<, $(real-prereqs)) |
| 1982 | |
Masahiro Yamada | 7f69180 | 2021-03-31 22:38:06 +0900 | [diff] [blame] | 1983 | $(extmod_prefix)compile_commands.json: scripts/clang-tools/gen_compile_commands.py \ |
Masahiro Yamada | 3216484 | 2022-09-25 03:19:14 +0900 | [diff] [blame] | 1984 | $(if $(KBUILD_EXTMOD),, vmlinux.a $(KBUILD_VMLINUX_LIBS)) \ |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1985 | $(if $(CONFIG_MODULES), $(MODORDER)) FORCE |
| 1986 | $(call if_changed,gen_compile_commands) |
| 1987 | |
Masahiro Yamada | 7f69180 | 2021-03-31 22:38:06 +0900 | [diff] [blame] | 1988 | targets += $(extmod_prefix)compile_commands.json |
Masahiro Yamada | 3d32285 | 2020-08-22 23:56:16 +0900 | [diff] [blame] | 1989 | |
Nathan Huckleberry | 6ad7cbc | 2020-08-22 23:56:18 +0900 | [diff] [blame] | 1990 | PHONY += clang-tidy clang-analyzer |
| 1991 | |
| 1992 | ifdef CONFIG_CC_IS_CLANG |
| 1993 | quiet_cmd_clang_tools = CHECK $< |
| 1994 | cmd_clang_tools = $(PYTHON3) $(srctree)/scripts/clang-tools/run-clang-tools.py $@ $< |
| 1995 | |
Masahiro Yamada | 7f69180 | 2021-03-31 22:38:06 +0900 | [diff] [blame] | 1996 | clang-tidy clang-analyzer: $(extmod_prefix)compile_commands.json |
Nathan Huckleberry | 6ad7cbc | 2020-08-22 23:56:18 +0900 | [diff] [blame] | 1997 | $(call cmd,clang_tools) |
| 1998 | else |
| 1999 | clang-tidy clang-analyzer: |
| 2000 | @echo "$@ requires CC=clang" >&2 |
| 2001 | @false |
| 2002 | endif |
| 2003 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2004 | # Scripts to check various things for consistency |
| 2005 | # --------------------------------------------------------------------------- |
| 2006 | |
Jacob Keller | 7dfbea4 | 2020-10-09 17:18:44 -0700 | [diff] [blame] | 2007 | PHONY += includecheck versioncheck coccicheck export_report |
Peter Foley | 279f3dd | 2011-04-26 17:15:01 -0400 | [diff] [blame] | 2008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | includecheck: |
Peter Foley | 436f876 | 2011-04-26 17:18:29 -0400 | [diff] [blame] | 2010 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2011 | -name '*.[hcS]' -type f -print | sort \ |
Geert Uytterhoeven | 8000743 | 2007-11-05 11:51:44 +0100 | [diff] [blame] | 2012 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2013 | |
| 2014 | versioncheck: |
Peter Foley | 2ee2d29 | 2011-04-26 17:19:28 -0400 | [diff] [blame] | 2015 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | -name '*.[hcS]' -type f -print | sort \ |
Geert Uytterhoeven | 8000743 | 2007-11-05 11:51:44 +0100 | [diff] [blame] | 2017 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2018 | |
Nicolas Palix | 74425ee | 2010-06-06 17:15:01 +0200 | [diff] [blame] | 2019 | coccicheck: |
Masahiro Yamada | 858805b | 2019-08-25 22:28:37 +0900 | [diff] [blame] | 2020 | $(Q)$(BASH) $(srctree)/scripts/$@ |
Nicolas Palix | 74425ee | 2010-06-06 17:15:01 +0200 | [diff] [blame] | 2021 | |
Adrian Bunk | 295ac05 | 2007-08-24 23:04:56 +0200 | [diff] [blame] | 2022 | export_report: |
| 2023 | $(PERL) $(srctree)/scripts/export_report.pl |
| 2024 | |
Mike Marciniszyn | c398ff0 | 2013-06-24 08:48:37 -0400 | [diff] [blame] | 2025 | PHONY += checkstack kernelrelease kernelversion image_name |
Jeff Dike | e3ccf6e | 2006-09-27 01:50:37 -0700 | [diff] [blame] | 2026 | |
Jeff Dike | 011e3a9 | 2006-12-13 00:34:12 -0800 | [diff] [blame] | 2027 | # UML needs a little special treatment here. It wants to use the host |
| 2028 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
| 2029 | # else wants $(ARCH), including people doing cross-builds, which means |
| 2030 | # that $(SUBARCH) doesn't work here. |
| 2031 | ifeq ($(ARCH), um) |
| 2032 | CHECKSTACK_ARCH := $(SUBARCH) |
| 2033 | else |
| 2034 | CHECKSTACK_ARCH := $(ARCH) |
| 2035 | endif |
Heiko Carstens | 66242cf | 2023-11-20 19:37:19 +0100 | [diff] [blame] | 2036 | MINSTACKSIZE ?= 100 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2037 | checkstack: |
| 2038 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
Heiko Carstens | 66242cf | 2023-11-20 19:37:19 +0100 | [diff] [blame] | 2039 | $(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH) $(MINSTACKSIZE) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2040 | |
Amerigo Wang | 7b8ea53 | 2010-08-20 05:36:06 -0400 | [diff] [blame] | 2041 | kernelrelease: |
Masahiro Yamada | 1cb86b6 | 2023-01-28 01:19:42 +0900 | [diff] [blame] | 2042 | @$(filechk_kernel.release) |
Amerigo Wang | 01ab178 | 2010-06-28 10:45:21 +0800 | [diff] [blame] | 2043 | |
Sam Ravnborg | cb58455 | 2006-01-09 21:20:34 +0100 | [diff] [blame] | 2044 | kernelversion: |
Sam Ravnborg | 2244cbd | 2006-01-16 12:12:12 +0100 | [diff] [blame] | 2045 | @echo $(KERNELVERSION) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2046 | |
Mike Marciniszyn | c398ff0 | 2013-06-24 08:48:37 -0400 | [diff] [blame] | 2047 | image_name: |
| 2048 | @echo $(KBUILD_IMAGE) |
| 2049 | |
Masahiro Yamada | 76a48b8 | 2023-07-22 13:47:55 +0900 | [diff] [blame] | 2050 | PHONY += run-command |
| 2051 | run-command: |
| 2052 | $(Q)$(KBUILD_RUN_COMMAND) |
| 2053 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2054 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
Masahiro Yamada | 0663c68 | 2020-05-04 17:08:07 +0900 | [diff] [blame] | 2055 | cmd_rmfiles = rm -rf $(rm-files) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2056 | |
Masahiro Yamada | 392885e | 2018-11-30 10:05:22 +0900 | [diff] [blame] | 2057 | # read saved command lines for existing targets |
| 2058 | existing-targets := $(wildcard $(sort $(targets))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2059 | |
Masahiro Yamada | b999923 | 2019-02-22 16:40:08 +0900 | [diff] [blame] | 2060 | -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2061 | |
SZ Lin (林上智) | 46b7c49 | 2020-03-01 00:09:58 +0800 | [diff] [blame] | 2062 | endif # config-build |
Masahiro Yamada | 2042b54 | 2019-08-11 00:53:03 +0900 | [diff] [blame] | 2063 | endif # mixed-build |
| 2064 | endif # need-sub-make |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2065 | |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 2066 | PHONY += FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | FORCE: |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 2068 | |
Ulf Magnusson | bd412d8 | 2018-07-05 12:33:07 +0900 | [diff] [blame] | 2069 | # Declare the contents of the PHONY variable as phony. We keep that |
Kirill Smelkov | fe8d0a4 | 2009-04-09 15:34:34 +0400 | [diff] [blame] | 2070 | # information in a variable so we can use it in if_changed and friends. |
Paul Smith | 4f19336 | 2006-03-05 17:14:10 -0500 | [diff] [blame] | 2071 | .PHONY: $(PHONY) |