kernel: backport patches improving fq_codel drop behavior
[lede.git] / rules.mk
1 #
2 # Copyright (C) 2006-2010 OpenWrt.org
3 # Copyright (C) 2016 LEDE Project
4 #
5 # This is free software, licensed under the GNU General Public License v2.
6 # See /LICENSE for more information.
7 #
8
9 ifneq ($(__rules_inc),1)
10 __rules_inc=1
11
12 ifeq ($(DUMP),)
13   -include $(TOPDIR)/.config
14 endif
15 include $(TOPDIR)/include/debug.mk
16 include $(TOPDIR)/include/verbose.mk
17
18 export TMP_DIR:=$(TOPDIR)/tmp
19
20 qstrip=$(strip $(subst ",,$(1)))
21 #"))
22
23 empty:=
24 space:= $(empty) $(empty)
25 comma:=,
26 merge=$(subst $(space),,$(1))
27 confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
28 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
29
30 paren_left = (
31 paren_right = )
32 chars_lower = a b c d e f g h i j k l m n o p q r s t u v w x y z
33 chars_upper = A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
34
35 define sep
36
37 endef
38
39 define newline
40
41
42 endef
43
44 __tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
45 __tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
46 __tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
47 __tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
48 __tr_template = $(__tr_head)$$(1)$(__tr_tail)
49
50 $(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
51 $(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
52
53 _SINGLE=export MAKEFLAGS=$(space);
54 CFLAGS:=
55 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
56 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
57 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
58 SUBTARGET:=$(call qstrip,$(CONFIG_TARGET_SUBTARGET))
59 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
60 export EXTRA_OPTIMIZATION:=$(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION)))
61 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
62 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
63 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
64 BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
65 export SHELL:=/usr/bin/env bash
66
67 IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
68
69 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
70
71 ifeq ($(ARCH),powerpc)
72   FPIC:=-fPIC
73 else
74   FPIC:=-fpic
75 endif
76
77 HOST_FPIC:=-fPIC
78
79 ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
80 GCC_ARCH:=
81
82 ifneq ($(ARCH_SUFFIX),)
83   ARCH_SUFFIX:=_$(ARCH_SUFFIX)
84 endif
85 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
86   GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
87 endif
88 ifdef CONFIG_HAS_SPE_FPU
89   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
90 endif
91 ifdef CONFIG_MIPS64_ABI
92   ifneq ($(CONFIG_MIPS64_ABI_O32),y)
93      ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
94   endif
95 endif
96
97 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
98 OUTPUT_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin)
99 BIN_DIR:=$(OUTPUT_DIR)/targets/$(BOARD)/$(SUBTARGET)
100 INCLUDE_DIR:=$(TOPDIR)/include
101 SCRIPT_DIR:=$(TOPDIR)/scripts
102 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
103 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
104   GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
105   LIBC:=$(call qstrip,$(CONFIG_LIBC))
106   LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
107   REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
108   GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
109   DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
110   BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
111   TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
112   TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
113 else
114   ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
115     GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
116   else
117     GNU_TARGET_NAME=$(shell gcc -dumpmachine)
118   endif
119   REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
120   TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
121   TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
122 endif
123
124 ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_GCC_VERSION_4_8),$(CONFIG_TARGET_uml)),)
125   iremap = -iremap $(1):$(2)
126 endif
127
128 PACKAGE_DIR:=$(BIN_DIR)/packages
129 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
130 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
131 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
132 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
133 STAMP_DIR:=$(BUILD_DIR)/stamp
134 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
135 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
136 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
137 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
138 BUILD_LOG_DIR:=$(TOPDIR)/logs
139 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
140
141 BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR)/host,$(BUILD_DIR_BASE)/host)
142 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
143
144 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
145 TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
146 TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
147 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
148 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
149 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
150 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
151 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
152 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
153 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
154 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
155 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
156 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
157 else
158 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
159 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
160 endif
161 LIBRPC=-lrpc
162 LIBRPC_DEPENDS=+librpc
163
164 ifeq ($(CONFIG_ARCH_64BIT),y)
165   LIB_SUFFIX:=64
166 endif
167
168 ifndef DUMP
169   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
170     -include $(TOOLCHAIN_DIR)/info.mk
171     export GCC_HONOUR_COPTS:=0
172     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
173     TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
174     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
175     ifeq ($(CONFIG_USE_MUSL),y)
176       TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
177     endif
178     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
179     TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
180     TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
181   else
182     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
183       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
184       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
185       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
186       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
187       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
188       ifneq ($(TOOLCHAIN_BIN_DIRS),)
189         TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
190       endif
191       ifneq ($(TOOLCHAIN_INC_DIRS),)
192         TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
193       endif
194       ifneq ($(TOOLCHAIN_LIB_DIRS),)
195         TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
196       endif
197       TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
198     endif
199   endif
200 endif
201 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
202
203 ifeq ($(CONFIG_SOFT_FLOAT),y)
204   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
205   ifeq ($(CONFIG_arm),y)
206     TARGET_CFLAGS+= -mfloat-abi=soft
207   else
208     TARGET_CFLAGS+= -msoft-float
209   endif
210 else
211   SOFT_FLOAT_CONFIG_OPTION:=
212   ifeq ($(CONFIG_arm),y)
213     TARGET_CFLAGS+= -mfloat-abi=hard
214   endif
215 endif
216
217 export PATH:=$(TARGET_PATH)
218 export STAGING_DIR STAGING_DIR_HOST
219 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
220
221 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
222
223 export PKG_CONFIG
224
225 HOSTCC:=gcc
226 HOSTCXX:=g++
227 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include -I$(STAGING_DIR_HOST)/usr/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR)/host/include)
228 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
229 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib -L$(STAGING_DIR_HOST)/usr/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR)/host/lib)
230
231 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
232   TARGET_AR:=$(TARGET_CROSS)gcc-ar
233   TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
234   TARGET_NM:=$(TARGET_CROSS)gcc-nm
235 else
236   TARGET_AR:=$(TARGET_CROSS)ar
237   TARGET_RANLIB:=$(TARGET_CROSS)ranlib
238   TARGET_NM:=$(TARGET_CROSS)nm
239 endif
240
241 BUILD_KEY=$(TOPDIR)/key-build
242
243 TARGET_CC:=$(TARGET_CROSS)gcc
244 TARGET_CXX:=$(TARGET_CROSS)g++
245 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
246 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
247 CP:=cp -fpR
248 LN:=ln -sf
249 XARGS:=xargs -r
250
251 BASH:=bash
252 TAR:=tar
253 FIND:=find
254 PATCH:=patch
255 PYTHON:=python
256
257 INSTALL_BIN:=install -m0755
258 INSTALL_DIR:=install -d -m0755
259 INSTALL_DATA:=install -m0644
260 INSTALL_CONF:=install -m0600
261
262 TARGET_CC_NOCACHE:=$(TARGET_CC)
263 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
264 HOSTCC_NOCACHE:=$(HOSTCC)
265 HOSTCXX_NOCACHE:=$(HOSTCXX)
266 export TARGET_CC_NOCACHE
267 export TARGET_CXX_NOCACHE
268 export HOSTCC_NOCACHE
269
270 ifneq ($(CONFIG_CCACHE),)
271   TARGET_CC:= ccache_cc
272   TARGET_CXX:= ccache_cxx
273   HOSTCC:= ccache $(HOSTCC)
274   HOSTCXX:= ccache $(HOSTCXX)
275 endif
276
277 TARGET_CONFIGURE_OPTS = \
278   AR="$(TARGET_AR)" \
279   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
280   LD=$(TARGET_CROSS)ld \
281   NM="$(TARGET_NM)" \
282   CC="$(TARGET_CC)" \
283   GCC="$(TARGET_CC)" \
284   CXX="$(TARGET_CXX)" \
285   RANLIB="$(TARGET_RANLIB)" \
286   STRIP=$(TARGET_CROSS)strip \
287   OBJCOPY=$(TARGET_CROSS)objcopy \
288   OBJDUMP=$(TARGET_CROSS)objdump \
289   SIZE=$(TARGET_CROSS)size
290
291 # strip an entire directory
292 ifneq ($(CONFIG_NO_STRIP),)
293   RSTRIP:=:
294   STRIP:=:
295 else
296   ifneq ($(CONFIG_USE_STRIP),)
297     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
298   else
299     ifneq ($(CONFIG_USE_SSTRIP),)
300       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
301     endif
302   endif
303   RSTRIP= \
304     export CROSS="$(TARGET_CROSS)" \
305                 $(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
306                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
307                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
308     NM="$(TARGET_CROSS)nm" \
309     STRIP="$(STRIP)" \
310     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
311     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
312     $(SCRIPT_DIR)/rstrip.sh
313 endif
314
315 ifeq ($(CONFIG_IPV6),y)
316   DISABLE_IPV6:=
317 else
318   DISABLE_IPV6:=--disable-ipv6
319 endif
320
321 TAR_OPTIONS:=-xf -
322
323 ifeq ($(CONFIG_BUILD_LOG),y)
324   BUILD_LOG:=1
325 endif
326
327 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
328 export M4:=$(STAGING_DIR_HOST)/bin/m4
329
330 define shvar
331 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
332 endef
333
334 define shexport
335 export $(call shvar,$(1))=$$(call $(1))
336 endef
337
338 define include_mk
339 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
340 endef
341
342 # Execute commands under flock
343 # $(1) => The shell expression.
344 # $(2) => The lock name. If not given, the global lock will be used.
345 ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
346   define locked
347         SHELL= \
348         flock \
349                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
350                 -c '$(subst ','\'',$(1))'
351   endef
352 else
353   locked=$(1)
354 endif
355
356 # Recursively copy paths into another directory, purge dangling
357 # symlinks before.
358 # $(1) => File glob expression
359 # $(2) => Destination directory
360 define file_copy
361         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
362                 ( cd $$src_dir; find -type f -or -type d ) | \
363                         ( cd $(2); while :; do \
364                                 read FILE; \
365                                 [ -z "$$FILE" ] && break; \
366                                 [ -L "$$FILE" ] || continue; \
367                                 echo "Removing symlink $(2)/$$FILE"; \
368                                 rm -f "$$FILE"; \
369                         done; ); \
370         done; \
371         $(CP) $(1) $(2)
372 endef
373
374 # file extension
375 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
376
377 all:
378 FORCE: ;
379 .PHONY: FORCE
380
381 val.%:
382         @$(if $(filter undefined,$(origin $*)),\
383                 echo "$* undefined" >&2, \
384                 echo '$(subst ','"'"',$($*))' \
385         )
386
387 var.%:
388         @$(if $(filter undefined,$(origin $*)),\
389                 echo "$* undefined" >&2, \
390                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
391         )
392
393 endif #__rules_inc