1 # -*- makefile -*- : Force emacs to use Makefile mode
3 # This file contains various boring housekeeping functions that would
4 # otherwise seriously clutter up the main Makefile.
6 ###############################################################################
8 # Find a usable "echo -e" substitute.
10 TAB := $(shell $(PRINTF) '\t')
11 ECHO_E_ECHO := $(ECHO)
12 ECHO_E_ECHO_E := $(ECHO) -e
13 ECHO_E_BIN_ECHO := /bin/echo
14 ECHO_E_BIN_ECHO_E := /bin/echo -e
15 ECHO_E_ECHO_TAB := $(shell $(ECHO_E_ECHO) '\t' | cat)
16 ECHO_E_ECHO_E_TAB := $(shell $(ECHO_E_ECHO_E) '\t' | cat)
17 ECHO_E_BIN_ECHO_TAB := $(shell $(ECHO_E_BIN_ECHO) '\t')
18 ECHO_E_BIN_ECHO_E_TAB := $(shell $(ECHO_E_BIN_ECHO_E) '\t')
20 ifeq ($(ECHO_E_ECHO_TAB),$(TAB))
21 ECHO_E := $(ECHO_E_ECHO)
23 ifeq ($(ECHO_E_ECHO_E_TAB),$(TAB))
24 ECHO_E := $(ECHO_E_ECHO_E)
26 ifeq ($(ECHO_E_BIN_ECHO_TAB),$(TAB))
27 ECHO_E := $(ECHO_E_BIN_ECHO)
29 ifeq ($(ECHO_E_BIN_ECHO_E_TAB),$(TAB))
30 ECHO_E := $(ECHO_E_BIN_ECHO_E)
37 @$(PRINTF) '%24s : x%sx\n' 'tab' '$(TAB)'
38 @$(PRINTF) '%24s : x%sx\n' '"$(ECHO_E_ECHO) \t"' \
40 @$(PRINTF) '%24s : x%sx\n' '"$(ECHO_E_ECHO_E) \t"' \
41 '$(ECHO_E_ECHO_E_TAB)'
42 @$(PRINTF) '%24s : x%sx\n' '"$(ECHO_E_BIN_ECHO) \t"' \
43 '$(ECHO_E_BIN_ECHO_TAB)'
44 @$(PRINTF) '%24s : x%sx\n' '"$(ECHO_E_BIN_ECHO_E) \t"' \
45 '$(ECHO_E_BIN_ECHO_E_TAB)'
46 @$(ECHO) "No usable \"echo -e\" substitute found"
49 MAKEDEPS += .echocheck
50 VERYCLEANUP += .echocheck
53 @$(ECHO) "Using \"$(ECHO_E)\" for \"echo -e\""
55 ###############################################################################
57 # Generate a usable "seq" substitute
60 $(shell awk 'BEGIN { for ( i = $(1) ; i <= $(2) ; i++ ) print i }')
63 ###############################################################################
67 HOST_OS := $(shell uname -s)
71 ###############################################################################
75 CCDEFS := $(shell $(CC) -E -x c -c /dev/null -dM | cut -d" " -f2)
79 ifeq ($(filter __ICC,$(CCDEFS)),__ICC)
87 ###############################################################################
89 # Check for tools that can cause failed builds
92 @if $(CC) -v 2>&1 | grep -is 'gcc version 2\.96' > /dev/null; then \
93 $(ECHO) 'gcc 2.96 is unsuitable for compiling Etherboot'; \
94 $(ECHO) 'Use gcc 2.95 or gcc 3.x instead'; \
97 @if [ `perl -e 'use bytes; print chr(255)' | wc -c` = 2 ]; then \
98 $(ECHO) 'Your Perl version has a Unicode handling bug'; \
99 $(ECHO) 'Execute this command before compiling Etherboot:'; \
100 $(ECHO) 'export LANG=$${LANG%.UTF-8}'; \
104 MAKEDEPS += .toolcheck
105 VERYCLEANUP += .toolcheck
107 ###############################################################################
109 # Check for various tool workarounds
112 # Make syntax does not allow use of comma or space in certain places.
113 # This ugly workaround is suggested in the manual.
117 SPACE := $(EMPTY) $(EMPTY)
119 # Check for an old version of gas (binutils 2.9.1)
121 OLDGAS := $(shell $(AS) --version | grep -q '2\.9\.1' && $(ECHO) -DGAS291)
126 # Some widespread patched versions of gcc include -fstack-protector by
127 # default, even when -ffreestanding is specified. We therefore need
128 # to disable -fstack-protector if the compiler supports it.
131 SP_TEST = $(CC) -fno-stack-protector -x c -c /dev/null \
132 -o /dev/null >/dev/null 2>&1
133 SP_FLAGS := $(shell $(SP_TEST) && $(ECHO) '-fno-stack-protector')
134 CFLAGS += $(SP_FLAGS)
137 # gcc 4.4 generates .eh_frame sections by default, which distort the
138 # output of "size". Inhibit this.
141 CFI_TEST = $(CC) -fno-dwarf2-cfi-asm -x c -c /dev/null \
142 -o /dev/null >/dev/null 2>&1
143 CFI_FLAGS := $(shell $(CFI_TEST) && $(ECHO) '-fno-dwarf2-cfi-asm')
144 CFLAGS += $(CFI_FLAGS)
147 # Some versions of gas choke on division operators, treating them as
148 # comment markers. Specifying --divide will work around this problem,
149 # but isn't available on older gas versions.
151 DIVIDE_TEST = $(AS) --divide /dev/null -o /dev/null 2>/dev/null
152 DIVIDE_FLAGS := $(shell $(DIVIDE_TEST) && $(ECHO) '--divide')
153 ASFLAGS += $(DIVIDE_FLAGS)
155 ###############################################################################
167 ###############################################################################
169 # Set BIN according to whatever was specified on the command line as
173 # Determine how many different BIN directories are mentioned in the
176 BIN_GOALS := $(filter bin/% bin-%,$(MAKECMDGOALS))
177 BIN_GOAL_BINS := $(foreach BG,$(BIN_GOALS),$(firstword $(subst /, ,$(BG))))
178 NUM_BINS := $(words $(sort $(BIN_GOAL_BINS)))
182 # No BIN directory was specified. Set BIN to "bin" as a sensible
191 # If exactly one BIN directory was specified, set BIN to match this
194 BIN := $(firstword $(BIN_GOAL_BINS))
198 # More than one BIN directory was specified. We cannot handle the
199 # latter case within a single make invocation, so set up recursive
200 # targets for each BIN directory.
202 # Leave $(BIN) undefined. This has implications for any target that
203 # depends on $(BIN); such targets should be made conditional upon the
204 # existence of $(BIN).
206 $(BIN_GOALS) : % : BIN_RECURSE
207 $(Q)$(MAKE) --no-print-directory BIN=$(firstword $(subst /, ,$@)) $@
210 endif # NUM_BINS == 1
211 endif # NUM_BINS == 0
215 # Create $(BIN) directory if it doesn't exist yet
217 ifeq ($(wildcard $(BIN)),)
218 $(shell $(MKDIR) -p $(BIN))
221 # Target to allow e.g. "make bin-efi arch"
224 @# Do nothing, silently
227 # Remove everything in $(BIN) for a "make clean"
229 CLEANUP += $(BIN)/*.* # Avoid picking up directories
233 # Determine whether or not we need to include the dependency files
235 NO_DEP_TARGETS := $(BIN) clean veryclean
236 ifeq ($(MAKECMDGOALS),)
239 ifneq ($(strip $(filter-out $(NO_DEP_TARGETS),$(MAKECMDGOALS))),)
243 ###############################################################################
245 # Select build architecture and platform based on $(BIN)
247 # BIN has the form bin[-[arch-]platform]
249 ARCHS := $(patsubst arch/%,%,$(wildcard arch/*))
250 PLATFORMS := $(patsubst config/defaults/%.h,%,\
251 $(wildcard config/defaults/*.h))
256 @$(ECHO) $(PLATFORMS)
260 # Determine architecture portion of $(BIN), if present
261 BIN_ARCH := $(strip $(foreach A,$(ARCHS),\
262 $(patsubst bin-$(A)-%,$(A),\
263 $(filter bin-$(A)-%,$(BIN)))))
265 # Determine platform portion of $(BIN), if present
267 BIN_PLATFORM := $(patsubst bin-%,%,$(filter bin-%,$(BIN)))
269 BIN_PLATFORM := $(patsubst bin-$(BIN_ARCH)-%,%,$(BIN))
272 # Determine build architecture
274 ARCH := $(firstword $(BIN_ARCH) $(DEFAULT_ARCH))
275 CFLAGS += -DARCH=$(ARCH)
280 # Determine build platform
281 DEFAULT_PLATFORM := pcbios
282 PLATFORM := $(firstword $(BIN_PLATFORM) $(DEFAULT_PLATFORM))
283 CFLAGS += -DPLATFORM=$(PLATFORM)
289 # Include architecture-specific Makefile
291 MAKEDEPS += arch/$(ARCH)/Makefile
292 include arch/$(ARCH)/Makefile
295 ###############################################################################
297 # Source file handling
299 # SRCDIRS lists all directories containing source files.
303 # SRCS lists all .c or .S files found in any SRCDIR
305 SRCS += $(wildcard $(patsubst %,%/*.c,$(SRCDIRS)))
306 SRCS += $(wildcard $(patsubst %,%/*.S,$(SRCDIRS)))
310 # AUTO_SRCS lists all files in SRCS that are not mentioned in
311 # NON_AUTO_SRCS. Files should be added to NON_AUTO_SRCS if they
312 # cannot be built using the standard build template.
314 AUTO_SRCS = $(filter-out $(NON_AUTO_SRCS),$(SRCS))
316 @$(ECHO) $(AUTO_SRCS)
318 # Just about everything else in this section depends upon having
325 CFLAGS += -I include -I arch/$(ARCH)/include -I .
329 CFLAGS += -ffreestanding
330 CFLAGS += -Wall -W -Wformat-nonliteral
333 CFLAGS += -fno-builtin
336 CFLAGS += -diag-disable 111 # Unreachable code
337 CFLAGS += -diag-disable 128 # Unreachable loop
338 CFLAGS += -diag-disable 170 # Array boundary checks
339 CFLAGS += -diag-disable 177 # Unused functions
340 CFLAGS += -diag-disable 181 # printf() format checks
341 CFLAGS += -diag-disable 188 # enum strictness
342 CFLAGS += -diag-disable 193 # Undefined preprocessor identifiers
343 CFLAGS += -diag-disable 280 # switch ( constant )
344 CFLAGS += -diag-disable 310 # K&R parameter lists
345 CFLAGS += -diag-disable 424 # Extra semicolon
346 CFLAGS += -diag-disable 589 # Declarations mid-code
347 CFLAGS += -diag-disable 593 # Unused variables
348 CFLAGS += -diag-disable 810 # Casting ints to smaller ints
349 CFLAGS += -diag-disable 981 # Sequence point violations
350 CFLAGS += -diag-disable 1292 # Ignored attributes
351 CFLAGS += -diag-disable 1338 # void pointer arithmetic
352 CFLAGS += -diag-disable 1361 # Variable-length arrays
353 CFLAGS += -diag-disable 1418 # Missing prototypes
354 CFLAGS += -diag-disable 1419 # Missing prototypes
355 CFLAGS += -diag-disable 1599 # Hidden variables
356 CFLAGS += -Wall -Wmissing-declarations
358 CFLAGS += $(EXTRA_CFLAGS)
359 ASFLAGS += $(EXTRA_ASFLAGS)
360 LDFLAGS += $(EXTRA_LDFLAGS)
362 # Inhibit -Werror if NO_WERROR is specified on make command line
364 ifneq ($(NO_WERROR),1)
366 ASFLAGS += --fatal-warnings
369 # compiler.h is needed for our linking and debugging system
371 CFLAGS += -include compiler.h
373 # CFLAGS for specific object types
376 CFLAGS_S += -DASSEMBLY
378 # Base object name of the current target
380 OBJECT = $(firstword $(subst ., ,$(@F)))
382 # CFLAGS for specific object files. You can define
383 # e.g. CFLAGS_rtl8139, and have those flags automatically used when
384 # compiling bin/rtl8139.o.
386 OBJ_CFLAGS = $(CFLAGS_$(OBJECT)) -DOBJECT=$(subst -,_,$(OBJECT))
388 @$(ECHO) $(OBJ_CFLAGS)
390 # ICC requires postprocessing objects to fix up table alignments
393 POST_O = && $(ICCFIX) $@
394 POST_O_DEPS := $(ICCFIX)
400 # Rules for specific object types.
402 COMPILE_c = $(CC) $(CFLAGS) $(CFLAGS_c) $(OBJ_CFLAGS)
403 RULE_c = $(Q)$(COMPILE_c) -c $< -o $@ $(POST_O)
404 RULE_c_to_dbg%.o = $(Q)$(COMPILE_c) -Ddebug_$(OBJECT)=$* -c $< -o $@ $(POST_O)
405 RULE_c_to_c = $(Q)$(COMPILE_c) -E -c $< > $@
406 RULE_c_to_s = $(Q)$(COMPILE_c) -S -g0 -c $< -o $@
408 PREPROCESS_S = $(CPP) $(CFLAGS) $(CFLAGS_S) $(OBJ_CFLAGS)
409 ASSEMBLE_S = $(AS) $(ASFLAGS)
410 RULE_S = $(Q)$(PREPROCESS_S) $< | $(ASSEMBLE_S) -o $@
411 RULE_S_to_s = $(Q)$(PREPROCESS_S) $< > $@
413 DEBUG_TARGETS += dbg%.o c s
415 # We automatically generate rules for any file mentioned in AUTO_SRCS
416 # using the following set of templates. It would be cleaner to use
417 # $(eval ...), but this function exists only in GNU make >= 3.80.
419 # src_template : generate Makefile rules for a given source file
421 # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
422 # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
423 # $(3) is the source type (e.g. "c")
424 # $(4) is the source base name (e.g. "rtl8139")
428 @$(ECHO) " [DEPS] $(1)"
429 @$(MKDIR) -p $(dir $(2))
432 @$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) -DOBJECT=$(4) \
433 -Wno-error -MM $(1) -MG -MP | \
434 sed 's/\.o\s*:/_DEPS =/' >> $(2)
435 @$(ECHO_E) '\n$$(BIN)/$(4).o :' \
436 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
437 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
438 '\n\t$$(RULE_$(3))\n' \
439 '\nBOBJS += $$(BIN)/$(4).o\n' \
440 $(foreach TGT,$(DEBUG_TARGETS), \
441 $(if $(RULE_$(3)_to_$(TGT)), \
442 '\n$$(BIN)/$(4).$(TGT) :' \
443 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
444 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
445 '\n\t$$(RULE_$(3)_to_$(TGT))\n' \
446 '\n$(TGT)_OBJS += $$(BIN)/$(4).$(TGT)\n' ) ) \
447 '\n$(2) : $$($(4)_DEPS)\n' \
448 '\nTAGS : $$($(4)_DEPS)\n' \
450 @$(PARSEROM) $(1) >> $(2)
454 # Rule to generate the Makefile rules files to be included
456 $(BIN)/deps/%.d : % $(MAKEDEPS) $(PARSEROM)
457 $(if $(filter $(AUTO_SRCS),$<),$(call src_template,$<,$@,$(subst .,,$(suffix $<)),$(basename $(notdir $<))),@$(ECHO) 'ERROR: $< is not an AUTO_SRC' ; exit 1)
459 # Calculate and include the list of Makefile rules files
461 AUTO_DEPS = $(patsubst %,$(BIN)/deps/%.d,$(AUTO_SRCS))
463 ifneq ($(AUTO_DEPS),)
464 -include $(AUTO_DEPS)
468 @$(ECHO) $(AUTO_DEPS)
469 VERYCLEANUP += $(BIN)/deps
471 # The following variables are created by the Makefile rules files
481 # List of embedded images included in the last build of embedded.o.
482 # This is needed in order to correctly rebuild embedded.o whenever the
483 # list of objects changes.
485 EMBEDDED_LIST := $(BIN)/.embedded.list
486 ifeq ($(wildcard $(EMBEDDED_LIST)),)
487 EMBEDDED_LIST_IMAGE := <invalid>
489 EMBEDDED_LIST_IMAGE := $(shell cat $(EMBEDDED_LIST))
491 ifneq ($(EMBEDDED_LIST_IMAGE),$(EMBEDDED_IMAGE))
492 $(shell $(ECHO) "$(EMBEDDED_IMAGE)" > $(EMBEDDED_LIST))
497 VERYCLEANUP += $(EMBEDDED_LIST)
499 EMBEDDED_FILES := $(subst $(COMMA), ,$(EMBEDDED_IMAGE))
500 EMBED_ALL := $(foreach i,$(call seq,1,$(words $(EMBEDDED_FILES))),\
501 EMBED ( $(i), \"$(word $(i), $(EMBEDDED_FILES))\",\
502 \"$(notdir $(word $(i),$(EMBEDDED_FILES)))\" ))
504 $(BIN)/embedded.o : $(EMBEDDED_FILES) $(EMBEDDED_LIST)
505 CFLAGS_embedded = -DEMBED_ALL="$(EMBED_ALL)"
507 # Generate the NIC file from the parsed source files. The NIC file is
508 # only for rom-o-matic.
510 $(BIN)/NIC : $(AUTO_DEPS)
511 @$(ECHO) '# This is an automatically generated file, do not edit' > $@
512 @$(ECHO) '# It does not affect anything in the build, ' \
513 'it is only for rom-o-matic' >> $@
515 @perl -ne 'chomp; print "$$1\n" if /\# NIC\t(.*)$$/' $^ >> $@
516 CLEANUP += $(BIN)/NIC # Doesn't match the $(BIN)/*.* pattern
518 # Analyse a target name (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and
519 # derive the variables:
521 # TGT_ELEMENTS : the elements of the target (e.g. "dfe538 prism2_pci")
522 # TGT_PREFIX : the prefix type (e.g. "zrom")
523 # TGT_DRIVERS : the driver for each element (e.g. "rtl8139 prism2_pci")
524 # TGT_ROM_NAME : the ROM name (e.g. "dfe538")
525 # TGT_MEDIA : the media type (e.g. "rom")
527 DRIVERS_gpxe = $(DRIVERS)
528 CARD_DRIVER = $(firstword $(DRIVER_$(1)) $(1))
529 TGT_ELEMENTS = $(subst --, ,$(firstword $(subst ., ,$(notdir $@))))
530 TGT_PREFIX = $(word 2,$(subst ., ,$(notdir $@)))
531 TGT_ROM_NAME = $(firstword $(TGT_ELEMENTS))
532 TGT_DRIVERS = $(strip $(if $(DRIVERS_$(TGT_ROM_NAME)), \
533 $(DRIVERS_$(TGT_ROM_NAME)), \
534 $(foreach TGT_ELEMENT,$(TGT_ELEMENTS), \
535 $(call CARD_DRIVER,$(TGT_ELEMENT))) ))
536 TGT_MEDIA = $(subst z,,$(TGT_PREFIX))
538 # Look up ROM IDs for the current target
539 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
541 # TGT_PCI_VENDOR : the PCI vendor ID (e.g. "0x1186")
542 # TGT_PCI_DEVICE : the PCI device ID (e.g. "0x1300")
544 TGT_PCI_VENDOR = $(PCI_VENDOR_$(TGT_ROM_NAME))
545 TGT_PCI_DEVICE = $(PCI_DEVICE_$(TGT_ROM_NAME))
547 # Calculate link-time options for the current target
548 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
550 # TGT_LD_DRIVERS : symbols to require in order to drag in the relevant drivers
551 # (e.g. "obj_rtl8139 obj_prism2_pci")
552 # TGT_LD_IDS : symbols to define in order to fill in ID structures in the
553 # ROM header (e.g."pci_vendor_id=0x1186 pci_device_id=0x1300")
555 TGT_LD_DRIVERS = $(subst -,_,$(patsubst %,obj_%,$(TGT_DRIVERS)))
556 TGT_LD_PREFIX = obj_$(TGT_PREFIX)prefix
557 TGT_LD_IDS = pci_vendor_id=$(firstword $(TGT_PCI_VENDOR) 0) \
558 pci_device_id=$(firstword $(TGT_PCI_DEVICE) 0)
560 # Calculate linker flags based on link-time options for the current
561 # target type (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the
564 # TGT_LD_FLAGS : target-specific flags to pass to linker (e.g.
565 # "-u obj_zpciprefix -u obj_rtl8139 -u obj_prism2_pci
566 # --defsym pci_vendor=0x1186 --defsym pci_device=0x1300")
568 TGT_LD_FLAGS = $(foreach SYM,$(TGT_LD_PREFIX) $(TGT_LD_DRIVERS) obj_config,\
569 -u $(SYM) --defsym check_$(SYM)=$(SYM) ) \
570 $(patsubst %,--defsym %,$(TGT_LD_IDS))
572 # Calculate makerom flags for the specific target
573 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
575 # TGT_MAKEROM_FLAGS : target-specific flags for makerom (e.g.
576 # "-p 0x1186,0x1300")
578 TGT_MAKEROM_FLAGS = $(strip $(MAKEROM_FLAGS_$(TGT_ROM_NAME)) \
579 $(if $(TGT_PCI_VENDOR),$(strip -p $(TGT_PCI_VENDOR),$(TGT_PCI_DEVICE))))
581 # Calculate list of debugging versions of objects to be included in
584 DEBUG_LIST = $(subst $(COMMA), ,$(DEBUG))
585 DEBUG_OBJ_LEVEL = $(firstword $(word 2,$(subst :, ,$(1))) 1)
586 DEBUG_OBJ_BASE = $(word 1,$(subst :, ,$(1))).dbg$(call DEBUG_OBJ_LEVEL,$(1))
587 DEBUG_OBJ = $(BIN)/$(call DEBUG_OBJ_BASE,$(1)).o
588 DEBUG_ORIG_OBJ = $(BIN)/$(word 1,$(subst :, ,$(1))).o
589 DEBUG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_OBJ,$(D)))
590 DEBUG_ORIG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_ORIG_OBJ,$(D)))
591 BLIB_OBJS = $(DEBUG_OBJS) $(filter-out $(DEBUG_ORIG_OBJS),$(BOBJS))
593 # Print out all derived information for a given target.
596 @$(ECHO) 'Elements : $(TGT_ELEMENTS)'
597 @$(ECHO) 'Prefix : $(TGT_PREFIX)'
598 @$(ECHO) 'Drivers : $(TGT_DRIVERS)'
599 @$(ECHO) 'ROM name : $(TGT_ROM_NAME)'
600 @$(ECHO) 'Media : $(TGT_MEDIA)'
602 @$(ECHO) 'PCI vendor : $(TGT_PCI_VENDOR)'
603 @$(ECHO) 'PCI device : $(TGT_PCI_DEVICE)'
605 @$(ECHO) 'LD driver symbols : $(TGT_LD_DRIVERS)'
606 @$(ECHO) 'LD prefix symbols : $(TGT_LD_PREFIX)'
607 @$(ECHO) 'LD ID symbols : $(TGT_LD_IDS)'
609 @$(ECHO) 'LD target flags : $(TGT_LD_FLAGS)'
611 @$(ECHO) 'makerom target flags : $(TGT_MAKEROM_FLAGS)'
613 @$(ECHO) 'Debugging objects : $(DEBUG_OBJS)'
614 @$(ECHO) 'Replaced objects : $(DEBUG_ORIG_OBJS)'
616 # List of objects included in the last build of blib. This is needed
617 # in order to correctly rebuild blib whenever the list of objects
620 BLIB_LIST := $(BIN)/.blib.list
621 ifeq ($(wildcard $(BLIB_LIST)),)
622 BLIB_LIST_OBJS := <invalid>
624 BLIB_LIST_OBJS := $(shell cat $(BLIB_LIST))
626 ifneq ($(BLIB_LIST_OBJS),$(BLIB_OBJS))
627 $(shell $(ECHO) "$(BLIB_OBJS)" > $(BLIB_LIST))
632 VERYCLEANUP += $(BLIB_LIST)
634 # Library of all objects
637 $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
639 $(QM)$(ECHO) " [AR] $@"
640 $(Q)$(AR) r $@ $(BLIB_OBJS)
644 # Build an intermediate object file from the objects required for the
647 $(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
648 $(QM)$(ECHO) " [LD] $@"
649 $(Q)$(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
650 -Map $(BIN)/$*.tmp.map
651 $(Q)$(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
653 # Keep intermediate object file (useful for debugging)
654 .PRECIOUS : $(BIN)/%.tmp
656 # Show a linker map for the specified target
658 $(BIN)/%.map : $(BIN)/%.tmp
659 @less $(BIN)/$*.tmp.map
661 # Get objects list for the specified target
664 $(sort $(foreach OBJ_SYMBOL,\
665 $(filter obj_%,$(shell $(NM) $(1) | cut -d" " -f3)),\
666 $(patsubst obj_%,%,$(OBJ_SYMBOL))))
668 $(BIN)/%.objs : $(BIN)/%.tmp
669 $(Q)$(ECHO) $(call objs_list,$<)
670 $(BIN)/%.sizes : $(BIN)/%.tmp
671 $(Q)$(SIZE) -t $(foreach OBJ,$(call objs_list,$<),$(BIN)/$(OBJ).o) | \
674 # Get dependency list for the specified target
677 $(sort $(foreach OBJ,$(call objs_list,$(1)),$($(OBJ)_DEPS)))
679 $(BIN)/%.deps : $(BIN)/%.tmp
680 $(Q)$(ECHO) $(call deps_list,$<)
682 # Get unneeded source files for the specified target
685 $(sort $(filter-out $(call deps_list,$(1)),\
686 $(foreach BOBJ,$(BOBJS),\
687 $($(basename $(notdir $(BOBJ)))_DEPS))))
689 $(BIN)/%.nodeps : $(BIN)/%.tmp
690 $(Q)$(ECHO) $(call nodeps_list,$<)
692 # Get licensing verdict for the specified target
694 define unlicensed_deps_list
695 $(shell grep -L FILE_LICENCE $(call deps_list,$(1)))
698 $(patsubst __licence_%,%,\
699 $(filter __licence_%,$(shell $(NM) $(1) | cut -d" " -f3)))
701 $(BIN)/%.licence : $(BIN)/%.tmp
702 $(QM)$(ECHO) " [LICENCE] $@"
703 $(Q)$(if $(strip $(call unlicensed_deps_list,$<)),\
704 echo -n "Unable to determine licence because the following " ;\
705 echo "files are missing a licence declaration:" ;\
706 echo $(call unlicensed_deps_list,$<);\
708 $(LICENCE) $(call licence_list,$<))
710 # Extract compression information from intermediate object file
712 $(BIN)/%.zinfo : $(BIN)/%.tmp
713 $(QM)$(ECHO) " [ZINFO] $@"
714 $(Q)$(OBJCOPY) -O binary -j .zinfo $< $@
716 # Build raw binary file from intermediate object file
718 $(BIN)/%.bin : $(BIN)/%.tmp
719 $(QM)$(ECHO) " [BIN] $@"
720 $(Q)$(OBJCOPY) -O binary -R .zinfo $< $@
722 # Compress raw binary file
724 $(BIN)/%.zbin : $(BIN)/%.bin $(BIN)/%.zinfo $(ZBIN)
725 $(QM)$(ECHO) " [ZBIN] $@"
726 $(Q)$(ZBIN) $(BIN)/$*.bin $(BIN)/$*.zinfo > $@
728 # Rules for each media format. These are generated and placed in an
729 # external Makefile fragment. We could do this via $(eval ...), but
730 # that would require make >= 3.80.
732 # Note that there's an alternative way to generate most .rom images:
733 # they can be copied from their 'master' ROM image using cp and
734 # reprocessed with makerom to add the PCI IDs and ident string. The
735 # relevant rule would look something like:
737 # $(BIN)/dfe538%rom : $(BIN)/rtl8139%rom
741 # You can derive the ROM/driver relationships using the variables
742 # DRIVER_<rom> and/or ROMS_<driver>.
744 # We don't currently do this, because (a) it would require generating
745 # yet more Makefile fragments (since you need a rule for each ROM in
746 # ROMS), and (b) the linker is so fast that it probably wouldn't make
747 # much difference to the overall build time.
752 AUTO_MEDIA = $(filter-out $(NON_AUTO_MEDIA),$(MEDIA))
754 @$(ECHO) $(AUTO_MEDIA)
756 # media_template : create Makefile rules for specified media
758 # $(1) is the media name (e.g. "rom")
759 # $(2) is the full path to the .d file (e.g. "bin/deps/rom.media.d")
761 define media_template
763 @$(ECHO) " [MEDIADEPS] $(1)"
764 @$(MKDIR) -p $(dir $(2))
767 @$(ECHO_E) '$$(BIN)/%.$(1) : $$(BIN)/%.$(1).zbin' \
768 '\n\t$$(QM)$(ECHO) " [FINISH] $$@"' \
769 '\n\t$$(Q)$$(CP) $$< $$@' \
770 '\n\t$$(Q)$$(PAD_$(1))' \
771 '\n\t$$(Q)$$(FINALISE_$(1))' \
776 # Rule to generate the Makefile rules to be included
778 $(BIN)/deps/%.media.d : $(MAKEDEPS)
779 $(if $(filter $(AUTO_MEDIA),$*), \
780 $(call media_template,$*,$@), \
781 @$(ECHO) 'ERROR: $* is not an AUTO_MEDIA' ; exit 1)
783 # Calculate and include the list of Makefile rules files
785 MEDIA_DEPS = $(patsubst %,$(BIN)/deps/%.media.d,$(AUTO_MEDIA))
787 @$(ECHO) $(MEDIA_DEPS)
789 ifneq ($(MEDIA_DEPS),)
790 -include $(MEDIA_DEPS)
794 # Wrap up binary blobs (for embedded images)
796 $(BIN)/%.o : payload/%.img
797 $(QM)echo " [WRAP] $@"
798 $(Q)$(LD) -b binary -r -o $@ $< --undefined obj_payload \
801 BOBJS += $(patsubst payload/%.img,$(BIN)/%.o,$(wildcard payload/*.img))
803 # The "allXXXs" targets for each suffix
805 allall: allroms allzroms allpxes allisos alldsks
806 allroms allzroms : all%s : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).%)
807 allpxes allisos alldsks : all%s : $(foreach DRIVER,$(DRIVERS),$(BIN)/$(DRIVER).%)
811 $(BIN)/etherboot.% : $(BIN)/gpxe.%
812 ln -sf $(notdir $<) $@
816 ###############################################################################
818 # Rules for finalising files. TGT_MAKEROM_FLAGS is defined as part of
819 # the automatic build system and varies by target; it includes the
820 # "-p 0x1234,0x5678" string to set the PCI IDs.
822 FINALISE_rom = $(MAKEROM) $(MAKEROM_FLAGS) $(TGT_MAKEROM_FLAGS) \
825 # Some ROMs require specific flags to be passed to makerom.pl
827 MAKEROM_FLAGS_3c503 = -3
829 ###############################################################################
831 # The compression utilities
833 $(NRV2B) : util/nrv2b.c $(MAKEDEPS)
834 $(QM)$(ECHO) " [HOSTCC] $@"
835 $(Q)$(HOST_CC) -O2 -DENCODE -DDECODE -DMAIN -DVERBOSE -DNDEBUG \
836 -DBITSIZE=32 -DENDIAN=0 -o $@ $<
839 $(ZBIN) : util/zbin.c util/nrv2b.c $(MAKEDEPS)
840 $(QM)$(ECHO) " [HOSTCC] $@"
841 $(Q)$(HOST_CC) -O2 -o $@ $<
844 ###############################################################################
846 # The EFI image converter
848 ELF2EFI_CFLAGS := -I$(BINUTILS_DIR)/include -I$(BFD_DIR)/include \
849 -idirafter include -L$(BINUTILS_DIR)/lib -L$(BFD_DIR)/lib \
852 $(ELF2EFI32) : util/elf2efi.c $(MAKEDEPS)
853 $(QM)$(ECHO) " [HOSTCC] $@"
854 $(Q)$(HOST_CC) $(ELF2EFI_CFLAGS) -DMDE_CPU_IA32 -O2 -o $@ $<
855 CLEANUP += $(ELF2EFI32)
857 $(ELF2EFI64) : util/elf2efi.c $(MAKEDEPS)
858 $(QM)$(ECHO) " [HOSTCC] $@"
859 $(Q)$(HOST_CC) $(ELF2EFI_CFLAGS) -DMDE_CPU_X64 -O2 -o $@ $<
860 CLEANUP += $(ELF2EFI64)
862 $(EFIROM) : util/efirom.c $(MAKEDEPS)
863 $(QM)$(ECHO) " [HOSTCC] $@"
864 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
867 ###############################################################################
869 # The ICC fixup utility
871 $(ICCFIX) : util/iccfix.c $(MAKEDEPS)
872 $(QM)$(ECHO) " [HOSTCC] $@"
873 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
876 ###############################################################################
878 # Auto-incrementing build serial number. Append "bs" to your list of
879 # build targets to get a serial number printed at the end of the
880 # build. Enable -DBUILD_SERIAL in order to see it when the code runs.
882 BUILDSERIAL_H = config/.buildserial.h
883 BUILDSERIAL_NOW = config/.buildserial.now
884 BUILDSERIAL_NEXT = config/.buildserial.next
886 $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) :
889 $(BUILDSERIAL_H) : $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT)
890 $(ECHO) '#define BUILD_SERIAL_NUM $(shell cat $<)' > $@
892 ifeq ($(filter bs,$(MAKECMDGOALS)),bs)
893 $(shell diff -q $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) > /dev/null || \
894 cp -f $(BUILDSERIAL_NEXT) $(BUILDSERIAL_NOW))
897 bs : $(BUILDSERIAL_NOW)
898 @$(ECHO) $$(( $(shell cat $<) + 1 )) > $(BUILDSERIAL_NEXT)
899 @$(ECHO) "Build serial number is $(shell cat $<)"
901 ###############################################################################
903 # Build the TAGS file(s) for emacs
906 ctags -e -R -f $@ --exclude=bin
910 ###############################################################################
912 # Force rebuild for any given target
918 ###############################################################################
920 # Symbol table checks
925 SYMTAB = $(BIN)/symtab
927 $(OBJDUMP) -w -t $< > $@
929 CLEANUP += $(BIN)/symtab
936 ###############################################################################
938 # Build bochs symbol table
943 $(BIN)/%.bxs : $(BIN)/%.tmp
944 $(NM) $< | cut -d" " -f1,3 > $@
948 ###############################################################################
955 $(BIN)/doxygen.cfg : doxygen.cfg $(MAKEDEPS)
956 $(PERL) -pe 's{\@SRCDIRS\@}{$(SRCDIRS)}; ' \
957 -e 's{\@BIN\@}{$(BIN)}; ' \
958 -e 's{\@ARCH\@}{$(ARCH)}; ' \
961 $(BIN)/doc : $(BIN)/doxygen.cfg
966 VERYCLEANUP += $(BIN)/doc
971 @[ -f $(BIN)/doc/html/index.html ] || $(MAKE) $(BIN)/doc
972 @if [ -n "$$BROWSER" ] ; then \
973 ( $$BROWSER $(BIN)/doc/html/index.html & ) ; \
975 $(ECHO) "Documentation index in $(BIN)/doc/html/index.html" ; \
980 ###############################################################################
988 $(RM) -r $(VERYCLEANUP)