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 ###############################################################################
59 HOST_OS := $(shell uname -s)
63 ###############################################################################
67 CCDEFS := $(shell $(CC) -E -x c -c /dev/null -dM | cut -d" " -f2)
71 ifeq ($(filter __ICC,$(CCDEFS)),__ICC)
79 ###############################################################################
81 # Check for tools that can cause failed builds
84 @if $(CC) -v 2>&1 | grep -is 'gcc version 2\.96' > /dev/null; then \
85 $(ECHO) 'gcc 2.96 is unsuitable for compiling Etherboot'; \
86 $(ECHO) 'Use gcc 2.95 or gcc 3.x instead'; \
89 @if [ `perl -e 'use bytes; print chr(255)' | wc -c` = 2 ]; then \
90 $(ECHO) 'Your Perl version has a Unicode handling bug'; \
91 $(ECHO) 'Execute this command before compiling Etherboot:'; \
92 $(ECHO) 'export LANG=$${LANG%.UTF-8}'; \
96 MAKEDEPS += .toolcheck
97 VERYCLEANUP += .toolcheck
99 ###############################################################################
101 # Check for various tool workarounds
104 # Make syntax does not allow use of comma or space in certain places.
105 # This ugly workaround is suggested in the manual.
109 SPACE := $(EMPTY) $(EMPTY)
111 # Check for an old version of gas (binutils 2.9.1)
113 OLDGAS := $(shell $(AS) --version | grep -q '2\.9\.1' && $(ECHO) -DGAS291)
118 # Some widespread patched versions of gcc include -fstack-protector by
119 # default, even when -ffreestanding is specified. We therefore need
120 # to disable -fstack-protector if the compiler supports it.
123 SP_TEST = $(CC) -fno-stack-protector -x c -c /dev/null \
124 -o /dev/null >/dev/null 2>&1
125 SP_FLAGS := $(shell $(SP_TEST) && $(ECHO) '-fno-stack-protector')
126 CFLAGS += $(SP_FLAGS)
129 ###############################################################################
141 ###############################################################################
143 # Set BIN according to whatever was specified on the command line as
147 # Determine how many different BIN directories are mentioned in the
150 BIN_GOALS := $(filter bin/% bin-%,$(MAKECMDGOALS))
151 BIN_GOAL_BINS := $(foreach BG,$(BIN_GOALS),$(firstword $(subst /, ,$(BG))))
152 NUM_BINS := $(words $(sort $(BIN_GOAL_BINS)))
156 # No BIN directory was specified. Set BIN to "bin" as a sensible
165 # If exactly one BIN directory was specified, set BIN to match this
168 BIN := $(firstword $(BIN_GOAL_BINS))
172 # More than one BIN directory was specified. We cannot handle the
173 # latter case within a single make invocation, so set up recursive
174 # targets for each BIN directory.
176 # Leave $(BIN) undefined. This has implications for any target that
177 # depends on $(BIN); such targets should be made conditional upon the
178 # existence of $(BIN).
180 $(BIN_GOALS) : % : BIN_RECURSE
181 $(Q)$(MAKE) --no-print-directory BIN=$(firstword $(subst /, ,$@)) $@
184 endif # NUM_BINS == 1
185 endif # NUM_BINS == 0
189 # Create $(BIN) directory if it doesn't exist yet
191 ifeq ($(wildcard $(BIN)),)
192 $(shell $(MKDIR) -p $(BIN))
195 # Target to allow e.g. "make bin-efi arch"
198 @# Do nothing, silently
201 # Remove everything in $(BIN) for a "make clean"
203 CLEANUP += $(BIN)/*.* # Avoid picking up directories
207 # Determine whether or not we need to include the dependency files
209 NO_DEP_TARGETS := $(BIN) clean veryclean
210 ifeq ($(MAKECMDGOALS),)
213 ifneq ($(strip $(filter-out $(NO_DEP_TARGETS),$(MAKECMDGOALS))),)
217 ###############################################################################
219 # Select build architecture and platform based on $(BIN)
221 # BIN has the form bin[-[arch-]platform]
223 ARCHS := $(patsubst arch/%,%,$(wildcard arch/*))
224 PLATFORMS := $(patsubst config/defaults/%.h,%,\
225 $(wildcard config/defaults/*.h))
230 @$(ECHO) $(PLATFORMS)
234 # Determine architecture portion of $(BIN), if present
235 BIN_ARCH := $(strip $(foreach A,$(ARCHS),\
236 $(patsubst bin-$(A)-%,$(A),\
237 $(filter bin-$(A)-%,$(BIN)))))
239 # Determine platform portion of $(BIN), if present
241 BIN_PLATFORM := $(patsubst bin-%,%,$(filter bin-%,$(BIN)))
243 BIN_PLATFORM := $(patsubst bin-$(BIN_ARCH)-%,%,$(BIN))
246 # Determine build architecture
248 ARCH := $(firstword $(BIN_ARCH) $(DEFAULT_ARCH))
249 CFLAGS += -DARCH=$(ARCH)
254 # Determine build platform
255 DEFAULT_PLATFORM := pcbios
256 PLATFORM := $(firstword $(BIN_PLATFORM) $(DEFAULT_PLATFORM))
257 CFLAGS += -DPLATFORM=$(PLATFORM)
263 # Include architecture-specific Makefile
265 MAKEDEPS += arch/$(ARCH)/Makefile
266 include arch/$(ARCH)/Makefile
269 ###############################################################################
271 # Source file handling
273 # SRCDIRS lists all directories containing source files.
277 # SRCS lists all .c or .S files found in any SRCDIR
279 SRCS += $(wildcard $(patsubst %,%/*.c,$(SRCDIRS)))
280 SRCS += $(wildcard $(patsubst %,%/*.S,$(SRCDIRS)))
284 # AUTO_SRCS lists all files in SRCS that are not mentioned in
285 # NON_AUTO_SRCS. Files should be added to NON_AUTO_SRCS if they
286 # cannot be built using the standard build template.
288 AUTO_SRCS = $(filter-out $(NON_AUTO_SRCS),$(SRCS))
290 @$(ECHO) $(AUTO_SRCS)
292 # Just about everything else in this section depends upon having
299 CFLAGS += -I include -I arch/$(ARCH)/include -I .
303 CFLAGS += -ffreestanding
304 CFLAGS += -Wall -W -Wformat-nonliteral
307 CFLAGS += -fno-builtin
310 CFLAGS += -diag-disable 111 # Unreachable code
311 CFLAGS += -diag-disable 128 # Unreachable loop
312 CFLAGS += -diag-disable 170 # Array boundary checks
313 CFLAGS += -diag-disable 177 # Unused functions
314 CFLAGS += -diag-disable 181 # printf() format checks
315 CFLAGS += -diag-disable 188 # enum strictness
316 CFLAGS += -diag-disable 193 # Undefined preprocessor identifiers
317 CFLAGS += -diag-disable 280 # switch ( constant )
318 CFLAGS += -diag-disable 310 # K&R parameter lists
319 CFLAGS += -diag-disable 424 # Extra semicolon
320 CFLAGS += -diag-disable 589 # Declarations mid-code
321 CFLAGS += -diag-disable 593 # Unused variables
322 CFLAGS += -diag-disable 810 # Casting ints to smaller ints
323 CFLAGS += -diag-disable 981 # Sequence point violations
324 CFLAGS += -diag-disable 1292 # Ignored attributes
325 CFLAGS += -diag-disable 1338 # void pointer arithmetic
326 CFLAGS += -diag-disable 1361 # Variable-length arrays
327 CFLAGS += -diag-disable 1418 # Missing prototypes
328 CFLAGS += -diag-disable 1419 # Missing prototypes
329 CFLAGS += -diag-disable 1599 # Hidden variables
330 CFLAGS += -Wall -Wmissing-declarations
332 CFLAGS += $(EXTRA_CFLAGS)
333 ASFLAGS += $(EXTRA_ASFLAGS)
334 LDFLAGS += $(EXTRA_LDFLAGS)
336 # Inhibit -Werror if NO_WERROR is specified on make command line
338 ifneq ($(NO_WERROR),1)
340 ASFLAGS += --fatal-warnings
343 # compiler.h is needed for our linking and debugging system
345 CFLAGS += -include compiler.h
347 # CFLAGS for specific object types
350 CFLAGS_S += -DASSEMBLY
352 # Base object name of the current target
354 OBJECT = $(firstword $(subst ., ,$(@F)))
356 # CFLAGS for specific object files. You can define
357 # e.g. CFLAGS_rtl8139, and have those flags automatically used when
358 # compiling bin/rtl8139.o.
360 OBJ_CFLAGS = $(CFLAGS_$(OBJECT)) -DOBJECT=$(subst -,_,$(OBJECT))
362 @$(ECHO) $(OBJ_CFLAGS)
364 # ICC requires postprocessing objects to fix up table alignments
367 POST_O = && $(ICCFIX) $@
368 POST_O_DEPS := $(ICCFIX)
374 # Rules for specific object types.
376 COMPILE_c = $(CC) $(CFLAGS) $(CFLAGS_c) $(OBJ_CFLAGS)
377 RULE_c = $(Q)$(COMPILE_c) -c $< -o $@ $(POST_O)
378 RULE_c_to_dbg%.o = $(Q)$(COMPILE_c) -Ddebug_$(OBJECT)=$* -c $< -o $@ $(POST_O)
379 RULE_c_to_c = $(Q)$(COMPILE_c) -E -c $< > $@
380 RULE_c_to_s = $(Q)$(COMPILE_c) -S -g0 -c $< -o $@
382 PREPROCESS_S = $(CPP) $(CFLAGS) $(CFLAGS_S) $(OBJ_CFLAGS)
383 ASSEMBLE_S = $(AS) $(ASFLAGS)
384 RULE_S = $(Q)$(PREPROCESS_S) $< | $(ASSEMBLE_S) -o $@
385 RULE_S_to_s = $(Q)$(PREPROCESS_S) $< > $@
387 DEBUG_TARGETS += dbg%.o c s
389 # We automatically generate rules for any file mentioned in AUTO_SRCS
390 # using the following set of templates. It would be cleaner to use
391 # $(eval ...), but this function exists only in GNU make >= 3.80.
393 # src_template : generate Makefile rules for a given source file
395 # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
396 # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
397 # $(3) is the source type (e.g. "c")
398 # $(4) is the source base name (e.g. "rtl8139")
402 @$(ECHO) " [DEPS] $(1)"
403 @$(MKDIR) -p $(dir $(2))
406 $(foreach OBJ,$(if $(OBJS_$(4)),$(OBJS_$(4)),$(4)), \
407 $(call obj_template,$(1),$(2),$(3),$(OBJ)))
408 @$(PARSEROM) $(1) >> $(2)
412 # obj_template : generate Makefile rules for a given resultant object
413 # of a particular source file. (We can have multiple objects per
414 # source file via the OBJS_xxx list.)
416 # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
417 # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
418 # $(3) is the source type (e.g. "c")
419 # $(4) is the object name (e.g. "rtl8139")
423 @$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) -DOBJECT=$(4) \
424 -Wno-error -MM $(1) -MG -MP | \
425 sed 's/\.o\s*:/_DEPS =/' >> $(2)
426 @$(ECHO_E) '\n$$(BIN)/$(4).o :' \
427 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
428 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
429 '\n\t$$(RULE_$(3))\n' \
430 '\nBOBJS += $$(BIN)/$(4).o\n' \
431 $(foreach TGT,$(DEBUG_TARGETS), \
432 $(if $(RULE_$(3)_to_$(TGT)), \
433 '\n$$(BIN)/$(4).$(TGT) :' \
434 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
435 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
436 '\n\t$$(RULE_$(3)_to_$(TGT))\n' \
437 '\n$(TGT)_OBJS += $$(BIN)/$(4).$(TGT)\n' ) ) \
438 '\n$(2) : $$($(4)_DEPS)\n' \
439 '\nTAGS : $$($(4)_DEPS)\n' \
444 # Rule to generate the Makefile rules files to be included
446 $(BIN)/deps/%.d : % $(MAKEDEPS) $(PARSEROM)
447 $(if $(filter $(AUTO_SRCS),$<),$(call src_template,$<,$@,$(subst .,,$(suffix $<)),$(basename $(notdir $<))),@$(ECHO) 'ERROR: $< is not an AUTO_SRC' ; exit 1)
449 # Calculate and include the list of Makefile rules files
451 AUTO_DEPS = $(patsubst %,$(BIN)/deps/%.d,$(AUTO_SRCS))
453 ifneq ($(AUTO_DEPS),)
454 -include $(AUTO_DEPS)
458 @$(ECHO) $(AUTO_DEPS)
459 VERYCLEANUP += $(BIN)/deps
461 # The following variables are created by the Makefile rules files
471 # List of embedded images included in the last build of embedded.o.
472 # This is needed in order to correctly rebuild embedded.o whenever the
473 # list of objects changes.
475 EMBEDDED_LIST := $(BIN)/.embedded.list
476 ifeq ($(wildcard $(EMBEDDED_LIST)),)
477 EMBEDDED_LIST_IMAGE :=
479 EMBEDDED_LIST_IMAGE := $(shell cat $(EMBEDDED_LIST))
481 ifneq ($(EMBEDDED_LIST_IMAGE),$(EMBEDDED_IMAGE))
482 $(shell $(ECHO) "$(EMBEDDED_IMAGE)" > $(EMBEDDED_LIST))
487 VERYCLEANUP += $(EMBEDDED_LIST)
489 EMBEDDED_FILES := $(subst $(COMMA), ,$(EMBEDDED_IMAGE))
490 EMBED_ALL := $(foreach i,$(shell seq 1 $(words $(EMBEDDED_FILES))),\
491 EMBED ( $(i), \"$(word $(i), $(EMBEDDED_FILES))\",\
492 \"$(notdir $(word $(i),$(EMBEDDED_FILES)))\" ))
494 $(BIN)/embedded.o : $(EMBEDDED_FILES) $(EMBEDDED_LIST)
495 CFLAGS_embedded = -DEMBED_ALL="$(EMBED_ALL)"
497 # Generate the NIC file from the parsed source files. The NIC file is
498 # only for rom-o-matic.
500 $(BIN)/NIC : $(AUTO_DEPS)
501 @$(ECHO) '# This is an automatically generated file, do not edit' > $@
502 @$(ECHO) '# It does not affect anything in the build, ' \
503 'it is only for rom-o-matic' >> $@
505 @perl -ne 'chomp; print "$$1\n" if /\# NIC\t(.*)$$/' $^ >> $@
506 CLEANUP += $(BIN)/NIC # Doesn't match the $(BIN)/*.* pattern
508 # Analyse a target name (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and
509 # derive the variables:
511 # TGT_ELEMENTS : the elements of the target (e.g. "dfe538 prism2_pci")
512 # TGT_PREFIX : the prefix type (e.g. "zrom")
513 # TGT_DRIVERS : the driver for each element (e.g. "rtl8139 prism2_pci")
514 # TGT_ROM_NAME : the ROM name (e.g. "dfe538")
515 # TGT_MEDIA : the media type (e.g. "rom")
517 DRIVERS_gpxe = $(DRIVERS)
518 CARD_DRIVER = $(firstword $(DRIVER_$(1)) $(1))
519 TGT_ELEMENTS = $(subst --, ,$(firstword $(subst ., ,$(notdir $@))))
520 TGT_PREFIX = $(word 2,$(subst ., ,$(notdir $@)))
521 TGT_ROM_NAME = $(firstword $(TGT_ELEMENTS))
522 TGT_DRIVERS = $(strip $(if $(DRIVERS_$(TGT_ROM_NAME)), \
523 $(DRIVERS_$(TGT_ROM_NAME)), \
524 $(foreach TGT_ELEMENT,$(TGT_ELEMENTS), \
525 $(call CARD_DRIVER,$(TGT_ELEMENT))) ))
526 TGT_MEDIA = $(subst z,,$(TGT_PREFIX))
528 # Look up ROM IDs for the current target
529 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
531 # TGT_PCI_VENDOR : the PCI vendor ID (e.g. "0x1186")
532 # TGT_PCI_DEVICE : the PCI device ID (e.g. "0x1300")
534 TGT_PCI_VENDOR = $(PCI_VENDOR_$(TGT_ROM_NAME))
535 TGT_PCI_DEVICE = $(PCI_DEVICE_$(TGT_ROM_NAME))
537 # Calculate link-time options for the current target
538 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
540 # TGT_LD_DRIVERS : symbols to require in order to drag in the relevant drivers
541 # (e.g. "obj_rtl8139 obj_prism2_pci")
542 # TGT_LD_IDS : symbols to define in order to fill in ID structures in the
543 # ROM header (e.g."pci_vendor_id=0x1186 pci_device_id=0x1300")
545 TGT_LD_DRIVERS = $(subst -,_,$(patsubst %,obj_%,$(TGT_DRIVERS)))
546 TGT_LD_PREFIX = obj_$(TGT_PREFIX)prefix
547 TGT_LD_IDS = pci_vendor_id=$(firstword $(TGT_PCI_VENDOR) 0) \
548 pci_device_id=$(firstword $(TGT_PCI_DEVICE) 0)
550 # Calculate linker flags based on link-time options for the current
551 # target type (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the
554 # TGT_LD_FLAGS : target-specific flags to pass to linker (e.g.
555 # "-u obj_zpciprefix -u obj_rtl8139 -u obj_prism2_pci
556 # --defsym pci_vendor=0x1186 --defsym pci_device=0x1300")
558 TGT_LD_FLAGS = $(foreach SYM,$(TGT_LD_PREFIX) $(TGT_LD_DRIVERS) obj_config,\
559 -u $(SYM) --defsym check_$(SYM)=$(SYM) ) \
560 $(patsubst %,--defsym %,$(TGT_LD_IDS))
562 # Calculate makerom flags for the specific target
563 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
565 # TGT_MAKEROM_FLAGS : target-specific flags for makerom (e.g.
566 # "-p 0x1186,0x1300")
568 TGT_MAKEROM_FLAGS = $(strip $(MAKEROM_FLAGS_$(TGT_ROM_NAME)) \
569 $(if $(TGT_PCI_VENDOR),$(strip -p $(TGT_PCI_VENDOR),$(TGT_PCI_DEVICE))))
571 # Calculate list of debugging versions of objects to be included in
574 DEBUG_LIST = $(subst $(COMMA), ,$(DEBUG))
575 DEBUG_OBJ_LEVEL = $(firstword $(word 2,$(subst :, ,$(1))) 1)
576 DEBUG_OBJ_BASE = $(word 1,$(subst :, ,$(1))).dbg$(call DEBUG_OBJ_LEVEL,$(1))
577 DEBUG_OBJ = $(BIN)/$(call DEBUG_OBJ_BASE,$(1)).o
578 DEBUG_ORIG_OBJ = $(BIN)/$(word 1,$(subst :, ,$(1))).o
579 DEBUG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_OBJ,$(D)))
580 DEBUG_ORIG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_ORIG_OBJ,$(D)))
581 BLIB_OBJS = $(DEBUG_OBJS) $(filter-out $(DEBUG_ORIG_OBJS),$(BOBJS))
583 # Print out all derived information for a given target.
586 @$(ECHO) 'Elements : $(TGT_ELEMENTS)'
587 @$(ECHO) 'Prefix : $(TGT_PREFIX)'
588 @$(ECHO) 'Drivers : $(TGT_DRIVERS)'
589 @$(ECHO) 'ROM name : $(TGT_ROM_NAME)'
590 @$(ECHO) 'Media : $(TGT_MEDIA)'
592 @$(ECHO) 'PCI vendor : $(TGT_PCI_VENDOR)'
593 @$(ECHO) 'PCI device : $(TGT_PCI_DEVICE)'
595 @$(ECHO) 'LD driver symbols : $(TGT_LD_DRIVERS)'
596 @$(ECHO) 'LD prefix symbols : $(TGT_LD_PREFIX)'
597 @$(ECHO) 'LD ID symbols : $(TGT_LD_IDS)'
599 @$(ECHO) 'LD target flags : $(TGT_LD_FLAGS)'
601 @$(ECHO) 'makerom target flags : $(TGT_MAKEROM_FLAGS)'
603 @$(ECHO) 'Debugging objects : $(DEBUG_OBJS)'
604 @$(ECHO) 'Replaced objects : $(DEBUG_ORIG_OBJS)'
606 # List of objects included in the last build of blib. This is needed
607 # in order to correctly rebuild blib whenever the list of objects
610 BLIB_LIST := $(BIN)/.blib.list
611 ifeq ($(wildcard $(BLIB_LIST)),)
614 BLIB_LIST_OBJS := $(shell cat $(BLIB_LIST))
616 ifneq ($(BLIB_LIST_OBJS),$(BLIB_OBJS))
617 $(shell $(ECHO) "$(BLIB_OBJS)" > $(BLIB_LIST))
622 VERYCLEANUP += $(BLIB_LIST)
624 # Library of all objects
627 $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
629 $(QM)$(ECHO) " [AR] $@"
630 $(Q)$(AR) r $@ $(BLIB_OBJS)
634 # Build an intermediate object file from the objects required for the
637 $(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
638 $(QM)$(ECHO) " [LD] $@"
639 $(Q)$(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
640 -Map $(BIN)/$*.tmp.map
641 $(Q)$(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
643 # Keep intermediate object file (useful for debugging)
644 .PRECIOUS : $(BIN)/%.tmp
646 # Show a linker map for the specified target
648 $(BIN)/%.map : $(BIN)/%.tmp
649 @less $(BIN)/$*.tmp.map
651 # Extract compression information from intermediate object file
653 $(BIN)/%.zinfo : $(BIN)/%.tmp
654 $(QM)$(ECHO) " [ZINFO] $@"
655 $(Q)$(OBJCOPY) -O binary -j .zinfo $< $@
657 # Build raw binary file from intermediate object file
659 $(BIN)/%.bin : $(BIN)/%.tmp
660 $(QM)$(ECHO) " [BIN] $@"
661 $(Q)$(OBJCOPY) -O binary -R .zinfo $< $@
663 # Compress raw binary file
665 $(BIN)/%.zbin : $(BIN)/%.bin $(BIN)/%.zinfo $(ZBIN)
666 $(QM)$(ECHO) " [ZBIN] $@"
667 $(Q)$(ZBIN) $(BIN)/$*.bin $(BIN)/$*.zinfo > $@
669 # Rules for each media format. These are generated and placed in an
670 # external Makefile fragment. We could do this via $(eval ...), but
671 # that would require make >= 3.80.
673 # Note that there's an alternative way to generate most .rom images:
674 # they can be copied from their 'master' ROM image using cp and
675 # reprocessed with makerom to add the PCI IDs and ident string. The
676 # relevant rule would look something like:
678 # $(BIN)/dfe538%rom : $(BIN)/rtl8139%rom
682 # You can derive the ROM/driver relationships using the variables
683 # DRIVER_<rom> and/or ROMS_<driver>.
685 # We don't currently do this, because (a) it would require generating
686 # yet more Makefile fragments (since you need a rule for each ROM in
687 # ROMS), and (b) the linker is so fast that it probably wouldn't make
688 # much difference to the overall build time.
693 AUTO_MEDIA = $(filter-out $(NON_AUTO_MEDIA),$(MEDIA))
695 @$(ECHO) $(AUTO_MEDIA)
697 # media_template : create Makefile rules for specified media
699 # $(1) is the media name (e.g. "rom")
700 # $(2) is the full path to the .d file (e.g. "bin/deps/rom.media.d")
702 define media_template
704 @$(ECHO) " [MEDIADEPS] $(1)"
705 @$(MKDIR) -p $(dir $(2))
708 @$(ECHO_E) '$$(BIN)/%.$(1) : $$(BIN)/%.$(1).zbin' \
709 '\n\t$$(QM)$(ECHO) " [FINISH] $$@"' \
710 '\n\t$$(Q)$$(CP) $$< $$@' \
711 '\n\t$$(Q)$$(FINALISE_$(1))' \
716 # Rule to generate the Makefile rules to be included
718 $(BIN)/deps/%.media.d : $(MAKEDEPS)
719 $(if $(filter $(AUTO_MEDIA),$*), \
720 $(call media_template,$*,$@), \
721 @$(ECHO) 'ERROR: $* is not an AUTO_MEDIA' ; exit 1)
723 # Calculate and include the list of Makefile rules files
725 MEDIA_DEPS = $(patsubst %,$(BIN)/deps/%.media.d,$(AUTO_MEDIA))
727 @$(ECHO) $(MEDIA_DEPS)
729 ifneq ($(MEDIA_DEPS),)
730 -include $(MEDIA_DEPS)
734 # Wrap up binary blobs (for embedded images)
736 $(BIN)/%.o : payload/%.img
737 $(QM)echo " [WRAP] $@"
738 $(Q)$(LD) -b binary -r -o $@ $< --undefined obj_payload \
741 BOBJS += $(patsubst payload/%.img,$(BIN)/%.o,$(wildcard payload/*.img))
743 # The "allXXXs" targets for each suffix
745 allall: allroms allzroms allpxes allisos alldsks
746 allroms allzroms : all%s : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).%)
747 allpxes allisos alldsks : all%s : $(foreach DRIVER,$(DRIVERS),$(BIN)/$(DRIVER).%)
751 $(BIN)/etherboot.% : $(BIN)/gpxe.%
752 ln -sf $(notdir $<) $@
756 ###############################################################################
758 # Rules for finalising files. TGT_MAKEROM_FLAGS is defined as part of
759 # the automatic build system and varies by target; it includes the
760 # "-p 0x1234,0x5678" string to set the PCI IDs.
762 FINALISE_rom = $(MAKEROM) $(MAKEROM_FLAGS) $(TGT_MAKEROM_FLAGS) \
765 # Some ROMs require specific flags to be passed to makerom.pl
767 MAKEROM_FLAGS_3c503 = -3
769 ###############################################################################
771 # The compression utilities
773 $(NRV2B) : util/nrv2b.c $(MAKEDEPS)
774 $(QM)$(ECHO) " [HOSTCC] $@"
775 $(Q)$(HOST_CC) -O2 -DENCODE -DDECODE -DMAIN -DVERBOSE -DNDEBUG \
776 -DBITSIZE=32 -DENDIAN=0 -o $@ $<
779 $(ZBIN) : util/zbin.c util/nrv2b.c $(MAKEDEPS)
780 $(QM)$(ECHO) " [HOSTCC] $@"
781 $(Q)$(HOST_CC) -O2 -o $@ $<
784 ###############################################################################
786 # The EFI image converter
788 $(ELF2EFI32) : util/elf2efi.c $(MAKEDEPS)
789 $(QM)$(ECHO) " [HOSTCC] $@"
790 $(Q)$(HOST_CC) -DMDE_CPU_IA32 -idirafter include -O2 \
791 -o $@ $< -lbfd -liberty
792 CLEANUP += $(ELF2EFI32)
794 $(ELF2EFI64) : util/elf2efi.c $(MAKEDEPS)
795 $(QM)$(ECHO) " [HOSTCC] $@"
796 $(Q)$(HOST_CC) -DMDE_CPU_X64 -idirafter include -O2 \
797 -o $@ $< -lbfd -liberty
798 CLEANUP += $(ELF2EFI64)
800 $(EFIROM) : util/efirom.c $(MAKEDEPS)
801 $(QM)$(ECHO) " [HOSTCC] $@"
802 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
805 ###############################################################################
807 # The ICC fixup utility
809 $(ICCFIX) : util/iccfix.c $(MAKEDEPS)
810 $(QM)$(ECHO) " [HOSTCC] $@"
811 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
814 ###############################################################################
816 # Auto-incrementing build serial number. Append "bs" to your list of
817 # build targets to get a serial number printed at the end of the
818 # build. Enable -DBUILD_SERIAL in order to see it when the code runs.
820 BUILDSERIAL_H = config/.buildserial.h
821 BUILDSERIAL_NOW = config/.buildserial.now
822 BUILDSERIAL_NEXT = config/.buildserial.next
824 $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) :
827 $(BUILDSERIAL_H) : $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT)
828 $(ECHO) '#define BUILD_SERIAL_NUM $(shell cat $<)' > $@
830 ifeq ($(filter bs,$(MAKECMDGOALS)),bs)
831 $(shell diff -q $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) > /dev/null || \
832 cp -f $(BUILDSERIAL_NEXT) $(BUILDSERIAL_NOW))
835 bs : $(BUILDSERIAL_NOW)
836 @$(ECHO) $$(( $(shell cat $<) + 1 )) > $(BUILDSERIAL_NEXT)
837 @$(ECHO) "Build serial number is $(shell cat $<)"
839 ###############################################################################
841 # Build the TAGS file(s) for emacs
844 ctags -e -R -f $@ --exclude=bin
848 ###############################################################################
850 # Force rebuild for any given target
856 ###############################################################################
858 # Symbol table checks
863 SYMTAB = $(BIN)/symtab
865 $(OBJDUMP) -w -t $< > $@
867 CLEANUP += $(BIN)/symtab
874 ###############################################################################
876 # Build bochs symbol table
881 $(BIN)/%.bxs : $(BIN)/%.tmp
882 $(NM) $< | cut -d" " -f1,3 > $@
886 ###############################################################################
893 $(BIN)/doxygen.cfg : doxygen.cfg $(MAKEDEPS)
894 $(PERL) -pe 's{\@SRCDIRS\@}{$(SRCDIRS)}; ' \
895 -e 's{\@BIN\@}{$(BIN)}; ' \
896 -e 's{\@ARCH\@}{$(ARCH)}; ' \
899 $(BIN)/doc : $(BIN)/doxygen.cfg
904 VERYCLEANUP += $(BIN)/doc
909 @[ -f $(BIN)/doc/html/index.html ] || $(MAKE) $(BIN)/doc
910 @if [ -n "$$BROWSER" ] ; then \
911 ( $$BROWSER $(BIN)/doc/html/index.html & ) ; \
913 $(ECHO) "Documentation index in $(BIN)/doc/html/index.html" ; \
918 ###############################################################################
926 $(RM) -r $(VERYCLEANUP)