Handle compiler options for source classes more generically
[coreboot.git] / Makefile
1 ##
2 ## This file is part of the coreboot project.
3 ##
4 ## Copyright (C) 2008 Advanced Micro Devices, Inc.
5 ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
6 ## Copyright (C) 2009-2010 coresystems GmbH
7 ##
8 ## This program is free software; you can redistribute it and/or modify
9 ## it under the terms of the GNU General Public License as published by
10 ## the Free Software Foundation; version 2 of the License.
11 ##
12 ## This program is distributed in the hope that it will be useful,
13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 ## GNU General Public License for more details.
16 ##
17 ## You should have received a copy of the GNU General Public License
18 ## along with this program; if not, write to the Free Software
19 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
20 ##
21
22 ifeq ($(INNER_SCANBUILD),y)
23 CC_real:=$(CC)
24 endif
25
26 $(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile)))
27 include .xcompile
28
29 ifeq ($(INNER_SCANBUILD),y)
30 CC:=$(CC_real)
31 HOSTCC:=$(CC_real) --hostcc
32 HOSTCXX:=$(CC_real) --hostcxx
33 endif
34
35 export top := $(CURDIR)
36 export src := src
37 export srck := $(top)/util/kconfig
38 export obj ?= build
39 export objutil ?= $(obj)/util
40 export objk := $(objutil)/kconfig
41
42
43 export KERNELVERSION      := 4.0
44 export KCONFIG_AUTOHEADER := $(obj)/config.h
45 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
46
47 CONFIG_SHELL := sh
48 KBUILD_DEFCONFIG := configs/defconfig
49 UNAME_RELEASE := $(shell uname -r)
50 DOTCONFIG ?= .config
51 KCONFIG_CONFIG = $(DOTCONFIG)
52 export KCONFIG_CONFIG
53 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
54 MAKEFLAGS += -rR --no-print-directory
55
56 # Make is silent per default, but 'make V=1' will show all compiler calls.
57 Q:=@
58 ifneq ($(V),1)
59 ifneq ($(Q),)
60 .SILENT:
61 endif
62 endif
63
64 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
65 ROMCC:= $(objutil)/romcc/romcc
66 HOSTCC = gcc
67 HOSTCXX = g++
68 HOSTCFLAGS := -I$(srck) -I$(objk) -g
69 HOSTCXXFLAGS := -I$(srck) -I$(objk)
70 LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && $(CC) -print-libgcc-file-name)
71
72 DOXYGEN := doxygen
73 DOXYGEN_OUTPUT_DIR := doxygen
74
75 # Three cases where we don't need fully populated $(obj) lists:
76 # 1. when no .config exists
77 # 2. when make config (in any flavour) is run
78 # 3. when make distclean is run
79 # Don't waste time on reading all Makefile.incs in these cases
80 ifeq ($(strip $(HAVE_DOTCONFIG)),)
81 NOCOMPILE:=1
82 endif
83 ifneq ($(MAKECMDGOALS),)
84 ifneq ($(filter %config distclean,$(MAKECMDGOALS)),)
85 NOCOMPILE:=1
86 endif
87 endif
88
89 ifeq ($(NOCOMPILE),1)
90 all: config
91
92 else
93
94 include $(HAVE_DOTCONFIG)
95
96 ifneq ($(INNER_SCANBUILD),y)
97 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
98 CC:=clang -m32
99 HOSTCC:=clang
100 endif
101 endif
102
103 ifeq ($(CONFIG_CCACHE),y)
104 CCACHE:=$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH))))
105 ifeq ($(CCACHE),)
106 $(error ccache selected, but not found in PATH)
107 endif
108 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
109 CC := $(CCACHE) $(CC)
110 HOSTCC := $(CCACHE) $(HOSTCC)
111 HOSTCXX := $(CCACHE) $(HOSTCXX)
112 ROMCC := $(CCACHE) $(ROMCC)
113 endif
114
115 strip_quotes = $(subst ",,$(subst \",,$(1)))
116
117 ARCHDIR-$(CONFIG_ARCH_X86)    := x86
118 ARCHDIR-$(CONFIG_ARCH_POWERPC) := ppc
119
120 MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
121 export MAINBOARDDIR
122
123 PLATFORM-y += src/arch/$(ARCHDIR-y) src/cpu src/mainboard/$(MAINBOARDDIR)
124 TARGETS-y :=
125
126 BUILD-y := src/lib src/boot src/console src/devices src/ec src/southbridge src/northbridge src/superio src/drivers
127 BUILD-y += util/cbfstool util/sconfig
128 BUILD-$(CONFIG_ARCH_X86) += src/pc80
129
130 ifneq ($(CONFIG_LOCALVERSION),"")
131 COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
132 endif
133
134 # The primary target needs to be here before we include the
135 # other files
136
137 ifeq ($(INNER_SCANBUILD),y)
138 CONFIG_SCANBUILD_ENABLE:=
139 endif
140
141 ifeq ($(CONFIG_SCANBUILD_ENABLE),y)
142 ifneq ($(CONFIG_SCANBUILD_REPORT_LOCATION),)
143 CONFIG_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_SCANBUILD_REPORT_LOCATION)
144 endif
145 all:
146         echo '#!/bin/sh' > .ccwrap
147         echo 'CC="$(CC)"' >> .ccwrap
148         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
149         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
150         echo 'eval $$CC $$*' >> .ccwrap
151         chmod +x .ccwrap
152         scan-build $(CONFIG_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
153 else
154 all: $(obj)/config.h coreboot
155 endif
156
157 # must come rather early
158 .SECONDEXPANSION:
159
160 $(obj)/config.h:
161         $(MAKE) oldconfig
162
163 #######################################################################
164 # Build the tools
165
166 CBFSTOOL:=$(obj)/cbfstool
167
168 $(CBFSTOOL): $(objutil)/cbfstool/cbfstool
169         cp $< $@
170
171 # needed objects that every mainboard uses
172 # Creation of these is architecture and mainboard independent
173 $(obj)/mainboard/$(MAINBOARDDIR)/static.c: $(src)/mainboard/$(MAINBOARDDIR)/devicetree.cb  $(objutil)/sconfig/sconfig
174         @printf "    SCONFIG    $(subst $(src)/,,$(<))\n"
175         mkdir -p $(obj)/mainboard/$(MAINBOARDDIR)
176         $(objutil)/sconfig/sconfig $(MAINBOARDDIR) $(obj)/mainboard/$(MAINBOARDDIR)
177
178 $(objutil)/%.o: $(objutil)/%.c
179         @printf "    HOSTCC     $(subst $(objutil)/,,$(@))\n"
180         $(HOSTCC) -MMD -I$(subst $(objutil)/,util/,$(dir $<)) -I$(dir $<) $(HOSTCFLAGS) -c -o $@ $<
181
182 $(obj)/%.ramstage.o: $(obj)/%.c $(obj)/config.h
183         @printf "    CC         $(subst $(obj)/,,$(@))\n"
184         $(CC) -MMD $(CFLAGS) -c -o $@ $<
185
186 # Add a new class of source/object files to the build system
187 add-class= \
188         $(eval $(1)-srcs:=) \
189         $(eval $(1)-objs:=) \
190         $(eval classes+=$(1))
191
192 # Special classes are managed types with special behaviour
193 # On parse time, for each entry in variable $(1)-y
194 # a handler $(1)-handler is executed with the arguments:
195 # * $(1): directory the parser is in
196 # * $(2): current entry
197 add-special-class= \
198         $(eval $(1):=) \
199         $(eval special-classes+=$(1))
200
201 $(call add-class,ramstage)
202 $(call add-class,romstage)
203 $(call add-class,driver)
204 $(call add-class,smm)
205 ramstage-S-ccopts:=-DASSEMBLY
206 romstage-c-ccopts:=-D__PRE_RAM__
207 romstage-S-ccopts:=-DASSEMBLY -D__PRE_RAM__
208 driver-S-ccopts:=-DASSEMBLY
209
210
211 $(call add-special-class,cbfs-files)
212 cbfs-files-handler= \
213                 $(if $(wildcard $(1)$($(2)-file)), \
214                         $(eval tmp-cbfs-file:= $(wildcard $(1)$($(2)-file))), \
215                         $(eval tmp-cbfs-file:= $($(2)-file))) \
216                 $(eval cbfs-files += $(tmp-cbfs-file)|$(2)|$($(2)-type)|$($(2)-position)) \
217                 $(eval $(2)-name:=) \
218                 $(eval $(2)-type:=) \
219                 $(eval $(2)-position:=)
220
221 ramstage-srcs+=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
222
223 # Clean -y variables, include Makefile.inc
224 # Add paths to files in X-y to X-srcs
225 # Add subdirs-y to subdirs
226 includemakefiles= \
227         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
228         $(eval -include $(1)) \
229         $(foreach class,$(classes-y), $(call add-class,$(class))) \
230         $(foreach class,$(classes), \
231                 $(eval $(class)-srcs+= \
232                         $$(subst $(top)/,, \
233                         $$(abspath $$(addprefix $(dir $(1)),$$($(class)-y)))))) \
234         $(foreach special,$(special-classes), \
235                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
236         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
237
238 # For each path in $(subdirs) call includemakefiles
239 # Repeat until subdirs is empty
240 evaluate_subdirs= \
241         $(eval cursubdirs:=$(subdirs)) \
242         $(eval subdirs:=) \
243         $(foreach dir,$(cursubdirs), \
244                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
245         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
246
247 # collect all object files eligible for building
248 subdirs:=$(PLATFORM-y) $(BUILD-y)
249 $(eval $(call evaluate_subdirs))
250
251 src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs))))
252 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class))))
253
254 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
255 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
256 alldirs:=$(sort $(abspath $(dir $(allobjs))))
257
258 define ramstage-objs_asl_template
259 $(obj)/$(1).ramstage.o: src/$(1).asl
260         @printf "    IASL       $$(subst $(top)/,,$$(@))\n"
261         $(CPP) -D__ACPI__ -P -include $(abspath $(obj)/config.h) -I$(src) -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
262         iasl -p $$(obj)/$(1) -tc $$(basename $$@).asl
263         mv $$(obj)/$(1).hex $$(basename $$@).c
264         $(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $(1)))), -DAmlCode=AmlCode_$$(basename $$(notdir $(1)))) -c -o $$@ $$(basename $$@).c
265         # keep %.o: %.c rule from catching the temporary .c file after a make clean
266         mv $$(basename $$@).c $$(basename $$@).hex
267 endef
268
269 # macro to define template macros that are used by use_template macro
270 define create_cc_template
271 # $1 obj class (ramstage, romstage, driver, smm)
272 # $2 source suffix (c, S)
273 # $3 additional compiler flags
274 ifn$(EMPTY)def $(1)-objs_$(2)_template
275 de$(EMPTY)fine $(1)-objs_$(2)_template
276 $(obj)/$$(1).$(1).o: src/$$(1).$(2) $(obj)/config.h
277         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
278         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
279 en$(EMPTY)def
280 end$(EMPTY)if
281 endef
282
283 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
284 $(foreach class,$(classes), \
285         $(foreach type,$(call filetypes-of-class,$(class)), \
286                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts)))))
287
288 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(subst src/,,$(basename $(file))))))
289 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
290
291 DEPENDENCIES = $(ramstage-objs:.o=.d) $(romstage-objs:.o=.d) $(driver-objs:.o=.d) $(smm-objs:.o=.d)
292 -include $(DEPENDENCIES)
293
294 printall:
295         @echo ramstage-objs:=$(ramstage-objs)
296         @echo romstage-objs:=$(romstage-objs)
297         @echo driver-objs:=$(driver-objs)
298         @echo smm-objs:=$(smm-objs)
299         @echo alldirs:=$(alldirs)
300         @echo allsrcs=$(allsrcs)
301         @echo DEPENDENCIES=$(DEPENDENCIES)
302         @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
303         @echo cbfs-files:='$(cbfs-files)'
304
305 printcrt0s:
306         @echo crt0s=$(crt0s)
307         @echo ldscripts=$(ldscripts)
308
309 OBJS     := $(patsubst %,$(obj)/%,$(TARGETS-y))
310 INCLUDES := -Isrc -Isrc/include -I$(obj) -Isrc/arch/$(ARCHDIR-y)/include
311 INCLUDES += -Isrc/devices/oprom/include
312 # abspath is a workaround for romcc
313 INCLUDES += -include $(abspath $(obj)/config.h)
314
315 CFLAGS = $(INCLUDES) -Os -pipe -g
316 CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
317 CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
318 CFLAGS += -Wstrict-aliasing -Wshadow
319 ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
320 CFLAGS += -Werror
321 endif
322 ifneq ($(CONFIG_AMD_AGESA),y)
323 CFLAGS += -nostdinc 
324 endif
325 CFLAGS += -fno-common -ffreestanding -fno-builtin -fomit-frame-pointer
326
327 CBFS_COMPRESS_FLAG:=l
328 CBFS_PAYLOAD_COMPRESS_FLAG:=
329 CBFS_PAYLOAD_COMPRESS_NAME:=none
330 ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZMA),y)
331 CBFS_PAYLOAD_COMPRESS_FLAG:=l
332 CBFS_PAYLOAD_COMPRESS_NAME:=LZMA
333 endif
334
335 coreboot: $(obj)/coreboot.rom
336
337 endif
338
339 $(shell mkdir -p $(obj) $(objutil)/kconfig/lxdialog $(objutil)/cbfstool $(objutil)/romcc $(objutil)/options $(alldirs))
340
341 $(obj)/build.h: .xcompile
342         @printf "    GEN        build.h\n"
343         rm -f $(obj)/build.h
344         printf "/* build system definitions (autogenerated) */\n" > $(obj)/build.ht
345         printf "#ifndef __BUILD_H\n" >> $(obj)/build.ht
346         printf "#define __BUILD_H\n\n" >> $(obj)/build.ht
347         printf "#define COREBOOT_VERSION \"$(KERNELVERSION)-r$(shell if [ -d $(top)/.svn -a -f "`which svnversion`" ]; then svnversion $(top); else if [ -d $(top)/.git -a -f "`which git`" ]; then git --git-dir=/$(top)/.git log|grep git-svn-id|cut -f 2 -d@|cut -f 1 -d' '|sort -g|tail -1; fi; fi)\"\n" >> $(obj)/build.ht
348         printf "#define COREBOOT_EXTRA_VERSION \"$(COREBOOT_EXTRA_VERSION)\"\n" >> $(obj)/build.ht
349         printf "#define COREBOOT_BUILD \"`LANG= date`\"\n" >> $(obj)/build.ht
350         printf "\n" >> $(obj)/build.ht
351         printf "#define COREBOOT_COMPILER \"$(shell LANG= $(CC) --version | head -n1)\"\n" >> $(obj)/build.ht
352         printf "#define COREBOOT_ASSEMBLER \"$(shell LANG= $(AS) --version | head -n1)\"\n" >> $(obj)/build.ht
353         printf "#define COREBOOT_LINKER \"$(shell LANG= $(LD) --version | head -n1)\"\n" >> $(obj)/build.ht
354         printf "#define COREBOOT_COMPILE_TIME \"`LANG= date +%T`\"\n" >> $(obj)/build.ht
355         printf "#define COREBOOT_COMPILE_BY \"$(subst \,@,$(shell PATH=$$PATH:/usr/ucb whoami))\"\n" >> $(obj)/build.ht
356         printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname -s 2>/dev/null)\"\n" >> $(obj)/build.ht
357         printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname 2>/dev/null)\"\n" >> $(obj)/build.ht
358         printf "#endif\n" >> $(obj)/build.ht
359         mv $(obj)/build.ht $(obj)/build.h
360
361 cscope:
362         cscope -bR
363
364 doxy: doxygen
365 doxygen:
366         $(DOXYGEN) documentation/Doxyfile.coreboot
367
368 doxyclean: doxygen-clean
369 doxygen-clean:
370         rm -rf $(DOXYGEN_OUTPUT_DIR)
371
372 clean-for-update: doxygen-clean
373         rm -f $(ramstage-objs) $(romstage-objs) $(driver-objs) $(smm-objs) .xcompile
374         rm -f $(DEPENDENCIES)
375         rm -f $(obj)/coreboot_ram* $(obj)/coreboot.romstage $(obj)/coreboot.pre* $(obj)/coreboot.bootblock $(obj)/coreboot.a
376         rm -rf $(obj)/bootblock* $(obj)/romstage* $(obj)/location.*
377         rm -f $(obj)/option_table.* $(obj)/crt0.S $(obj)/ldscript
378         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/static.c $(obj)/mainboard/$(MAINBOARDDIR)/config.py $(obj)/mainboard/$(MAINBOARDDIR)/static.dot
379         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
380         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
381         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.* $(obj)/mainboard/$(MAINBOARDDIR)/dsdt.*
382         rm -f $(obj)/cpu/x86/smm/smm_bin.c $(obj)/cpu/x86/smm/smm.* $(obj)/cpu/x86/smm/smm
383         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
384         $(MAKE) -C payloads/external/SeaBIOS -f Makefile.inc clean
385
386 clean: clean-for-update
387         rm -f $(obj)/coreboot* .ccwrap
388
389 clean-abuild:
390         rm -rf coreboot-builds
391
392 clean-cscope:
393         rm -f cscope.out
394
395 distclean: clean-cscope
396         rm -rf $(obj)
397         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
398
399 update:
400         dongle.py -c /dev/term/1 $(obj)/coreboot.rom EOF
401
402 lint:
403         FAILED=0; LINTLOG=`mktemp`; \
404         for script in util/lint/lint-*; do \
405                 echo; echo `basename $$script`; \
406                 grep "^# DESCR:" $$script | sed "s,.*DESCR: *,," ; \
407                 echo ========; \
408                 $$script > $$LINTLOG; \
409                 if [ `wc -l $$LINTLOG | cut -d' ' -f1` -eq 0 ]; then \
410                         printf "success\n\n"; \
411                 else \
412                         echo test failed: ; \
413                         cat $$LINTLOG; \
414                         rm -f $$LINTLOG; \
415                         FAILED=$$(( $$FAILED + 1 )); \
416                 fi; \
417                 echo ========; \
418         done; \
419         test $$FAILED -eq 0 || { echo "ERROR: $$FAILED test(s) failed." &&  exit 1; }; \
420         rm -f $$LINTLOG
421
422 # This include must come _before_ the pattern rules below!
423 # Order _does_ matter for pattern rules.
424 include util/kconfig/Makefile
425
426 $(obj)/ldoptions: $(obj)/config.h
427         awk '/^#define ([^"])* ([^"])*$$/ {gsub("\\r","",$$3); print $$2 " = " $$3 ";";}' $< > $@
428
429 _WINCHECK=$(shell uname -o 2> /dev/null)
430 STACK=
431 ifeq ($(_WINCHECK),Msys)
432         STACK=-Wl,--stack,16384000
433 endif
434 ifeq ($(_WINCHECK),Cygwin)
435         STACK=-Wl,--stack,16384000
436 endif
437
438 $(objutil)/romcc/romcc: $(top)/util/romcc/romcc.c
439         @printf "    HOSTCC     $(subst $(obj)/,,$(@)) (this may take a while)\n"
440         @# Note: Adding -O2 here might cause problems. For details see:
441         @# http://www.coreboot.org/pipermail/coreboot/2010-February/055825.html
442         $(HOSTCC) -g $(STACK) -Wall -o $@ $<
443
444 .PHONY: $(PHONY) clean clean-abuild clean-cscope cscope distclean doxygen doxy coreboot .xcompile
445