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 # Include architecture-specific include path
297 INCDIRS += arch/$(ARCH)/include
300 ###############################################################################
302 # Source file handling
304 # SRCDIRS lists all directories containing source files.
308 # SRCS lists all .c or .S files found in any SRCDIR
310 SRCS += $(wildcard $(patsubst %,%/*.c,$(SRCDIRS)))
311 SRCS += $(wildcard $(patsubst %,%/*.S,$(SRCDIRS)))
315 # AUTO_SRCS lists all files in SRCS that are not mentioned in
316 # NON_AUTO_SRCS. Files should be added to NON_AUTO_SRCS if they
317 # cannot be built using the standard build template.
319 AUTO_SRCS = $(filter-out $(NON_AUTO_SRCS),$(SRCS))
321 @$(ECHO) $(AUTO_SRCS)
323 # Just about everything else in this section depends upon having
328 # INCDIRS lists the include path
334 CFLAGS += $(foreach INC,$(INCDIRS),-I$(INC))
338 CFLAGS += -ffreestanding
339 CFLAGS += -Wall -W -Wformat-nonliteral
342 CFLAGS += -fno-builtin
345 CFLAGS += -diag-disable 111 # Unreachable code
346 CFLAGS += -diag-disable 128 # Unreachable loop
347 CFLAGS += -diag-disable 170 # Array boundary checks
348 CFLAGS += -diag-disable 177 # Unused functions
349 CFLAGS += -diag-disable 181 # printf() format checks
350 CFLAGS += -diag-disable 188 # enum strictness
351 CFLAGS += -diag-disable 193 # Undefined preprocessor identifiers
352 CFLAGS += -diag-disable 280 # switch ( constant )
353 CFLAGS += -diag-disable 310 # K&R parameter lists
354 CFLAGS += -diag-disable 424 # Extra semicolon
355 CFLAGS += -diag-disable 589 # Declarations mid-code
356 CFLAGS += -diag-disable 593 # Unused variables
357 CFLAGS += -diag-disable 810 # Casting ints to smaller ints
358 CFLAGS += -diag-disable 981 # Sequence point violations
359 CFLAGS += -diag-disable 1292 # Ignored attributes
360 CFLAGS += -diag-disable 1338 # void pointer arithmetic
361 CFLAGS += -diag-disable 1361 # Variable-length arrays
362 CFLAGS += -diag-disable 1418 # Missing prototypes
363 CFLAGS += -diag-disable 1419 # Missing prototypes
364 CFLAGS += -diag-disable 1599 # Hidden variables
365 CFLAGS += -Wall -Wmissing-declarations
367 CFLAGS += $(EXTRA_CFLAGS)
368 ASFLAGS += $(EXTRA_ASFLAGS)
369 LDFLAGS += $(EXTRA_LDFLAGS)
371 # Inhibit -Werror if NO_WERROR is specified on make command line
373 ifneq ($(NO_WERROR),1)
375 ASFLAGS += --fatal-warnings
378 # Function trace recorder state in the last build. This is needed
379 # in order to correctly rebuild whenever the function recorder is
382 FNREC_STATE := $(BIN)/.fnrec.state
383 ifeq ($(wildcard $(FNREC_STATE)),)
384 FNREC_STATE_OLD := <invalid>
386 FNREC_STATE_OLD := $(shell cat $(FNREC_STATE))
388 ifeq ($(FNREC_STATE_OLD),$(FNREC))
391 $(FNREC_STATE) : clean
392 $(shell $(ECHO) "$(FNREC)" > $(FNREC_STATE))
395 VERYCLEANUP += $(FNREC_STATE)
396 MAKEDEPS += $(FNREC_STATE)
399 # Enabling -finstrument-functions affects gcc's analysis and leads to spurious
400 # warnings about use of uninitialised variables.
402 CFLAGS += -Wno-uninitialized
403 CFLAGS += -finstrument-functions
404 CFLAGS += -finstrument-functions-exclude-file-list=core/fnrec.c
407 # compiler.h is needed for our linking and debugging system
409 CFLAGS += -include compiler.h
411 # CFLAGS for specific object types
414 CFLAGS_S += -DASSEMBLY
416 # Base object name of the current target
418 OBJECT = $(firstword $(subst ., ,$(@F)))
420 # CFLAGS for specific object files. You can define
421 # e.g. CFLAGS_rtl8139, and have those flags automatically used when
422 # compiling bin/rtl8139.o.
424 OBJ_CFLAGS = $(CFLAGS_$(OBJECT)) -DOBJECT=$(subst -,_,$(OBJECT))
426 @$(ECHO) $(OBJ_CFLAGS)
428 # ICC requires postprocessing objects to fix up table alignments
431 POST_O = && $(ICCFIX) $@
432 POST_O_DEPS := $(ICCFIX)
438 # Rules for specific object types.
440 COMPILE_c = $(CC) $(CFLAGS) $(CFLAGS_c) $(OBJ_CFLAGS)
441 RULE_c = $(Q)$(COMPILE_c) -c $< -o $@ $(POST_O)
442 RULE_c_to_dbg%.o = $(Q)$(COMPILE_c) -Ddebug_$(subst -,_,$(OBJECT))=$* -c $< -o $@ $(POST_O)
443 RULE_c_to_c = $(Q)$(COMPILE_c) -E -c $< > $@
444 RULE_c_to_s = $(Q)$(COMPILE_c) -S -g0 -c $< -o $@
446 PREPROCESS_S = $(CPP) $(CFLAGS) $(CFLAGS_S) $(OBJ_CFLAGS)
447 ASSEMBLE_S = $(AS) $(ASFLAGS)
448 RULE_S = $(Q)$(PREPROCESS_S) $< | $(ASSEMBLE_S) -o $@
449 RULE_S_to_s = $(Q)$(PREPROCESS_S) $< > $@
451 DEBUG_TARGETS += dbg%.o c s
453 # We automatically generate rules for any file mentioned in AUTO_SRCS
454 # using the following set of templates. It would be cleaner to use
455 # $(eval ...), but this function exists only in GNU make >= 3.80.
457 # src_template : generate Makefile rules for a given source file
459 # $(1) is the full path to the source file (e.g. "drivers/net/rtl8139.c")
460 # $(2) is the full path to the .d file (e.g. "bin/deps/drivers/net/rtl8139.d")
461 # $(3) is the source type (e.g. "c")
462 # $(4) is the source base name (e.g. "rtl8139")
466 @$(ECHO) " [DEPS] $(1)"
467 @$(MKDIR) -p $(dir $(2))
470 @$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) -DOBJECT=$(4) \
471 -Wno-error -MM $(1) -MG -MP | \
472 sed 's/\.o\s*:/_DEPS =/' >> $(2)
473 @$(ECHO_E) '\n$$(BIN)/$(4).o :' \
474 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
475 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
476 '\n\t$$(RULE_$(3))\n' \
477 '\nBOBJS += $$(BIN)/$(4).o\n' \
478 $(foreach TGT,$(DEBUG_TARGETS), \
479 $(if $(RULE_$(3)_to_$(TGT)), \
480 '\n$$(BIN)/$(4).$(TGT) :' \
481 '$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
482 '\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
483 '\n\t$$(RULE_$(3)_to_$(TGT))\n' \
484 '\n$(TGT)_OBJS += $$(BIN)/$(4).$(TGT)\n' ) ) \
485 '\n$(2) : $$($(4)_DEPS)\n' \
486 '\nTAGS : $$($(4)_DEPS)\n' \
488 @$(PARSEROM) $(1) >> $(2)
492 # Rule to generate the Makefile rules files to be included
494 $(BIN)/deps/%.d : % $(MAKEDEPS) $(PARSEROM)
495 $(if $(filter $(AUTO_SRCS),$<),$(call src_template,$<,$@,$(subst .,,$(suffix $<)),$(basename $(notdir $<))),@$(ECHO) 'ERROR: $< is not an AUTO_SRC' ; exit 1)
497 # Calculate and include the list of Makefile rules files
499 AUTO_DEPS = $(patsubst %,$(BIN)/deps/%.d,$(AUTO_SRCS))
501 ifneq ($(AUTO_DEPS),)
502 -include $(AUTO_DEPS)
506 @$(ECHO) $(AUTO_DEPS)
507 VERYCLEANUP += $(BIN)/deps
509 # The following variables are created by the Makefile rules files
519 # List of embedded images included in the last build of embedded.o.
520 # This is needed in order to correctly rebuild embedded.o whenever the
521 # list of objects changes.
523 EMBEDDED_LIST := $(BIN)/.embedded.list
524 ifeq ($(wildcard $(EMBEDDED_LIST)),)
525 EMBEDDED_LIST_IMAGE := <invalid>
527 EMBEDDED_LIST_IMAGE := $(shell cat $(EMBEDDED_LIST))
529 ifneq ($(EMBEDDED_LIST_IMAGE),$(EMBEDDED_IMAGE))
530 $(shell $(ECHO) "$(EMBEDDED_IMAGE)" > $(EMBEDDED_LIST))
535 VERYCLEANUP += $(EMBEDDED_LIST)
537 EMBEDDED_FILES := $(subst $(COMMA), ,$(EMBEDDED_IMAGE))
538 EMBED_ALL := $(foreach i,$(call seq,1,$(words $(EMBEDDED_FILES))),\
539 EMBED ( $(i), \"$(word $(i), $(EMBEDDED_FILES))\",\
540 \"$(notdir $(word $(i),$(EMBEDDED_FILES)))\" ))
542 $(BIN)/embedded.o : $(EMBEDDED_FILES) $(EMBEDDED_LIST)
544 # This file uses .incbin inline assembly to include a binary file.
545 # Unfortunately ccache does not detect this dependency and caches builds even
546 # when the binary file has changed.
548 $(BIN)/embedded.o : override CC := env CCACHE_DISABLE=1 $(CC)
550 CFLAGS_embedded = -DEMBED_ALL="$(EMBED_ALL)"
552 # Generate the NIC file from the parsed source files. The NIC file is
553 # only for rom-o-matic.
555 $(BIN)/NIC : $(AUTO_DEPS)
556 @$(ECHO) '# This is an automatically generated file, do not edit' > $@
557 @$(ECHO) '# It does not affect anything in the build, ' \
558 'it is only for rom-o-matic' >> $@
560 @perl -ne 'chomp; print "$$1\n" if /\# NIC\t(.*)$$/' $^ >> $@
561 CLEANUP += $(BIN)/NIC # Doesn't match the $(BIN)/*.* pattern
563 # Analyse a target name (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and
564 # derive the variables:
566 # TGT_ELEMENTS : the elements of the target (e.g. "dfe538 prism2_pci")
567 # TGT_PREFIX : the prefix type (e.g. "zrom")
568 # TGT_DRIVERS : the driver for each element (e.g. "rtl8139 prism2_pci")
569 # TGT_ROM_NAME : the ROM name (e.g. "dfe538")
570 # TGT_MEDIA : the media type (e.g. "rom")
572 DRIVERS_gpxe = $(DRIVERS)
573 CARD_DRIVER = $(firstword $(DRIVER_$(1)) $(1))
574 TGT_ELEMENTS = $(subst --, ,$(firstword $(subst ., ,$(notdir $@))))
575 TGT_PREFIX = $(word 2,$(subst ., ,$(notdir $@)))
576 TGT_ROM_NAME = $(firstword $(TGT_ELEMENTS))
577 TGT_DRIVERS = $(strip $(if $(DRIVERS_$(TGT_ROM_NAME)), \
578 $(DRIVERS_$(TGT_ROM_NAME)), \
579 $(foreach TGT_ELEMENT,$(TGT_ELEMENTS), \
580 $(call CARD_DRIVER,$(TGT_ELEMENT))) ))
581 TGT_MEDIA = $(subst z,,$(TGT_PREFIX))
583 # Look up ROM IDs for the current target
584 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
586 # TGT_PCI_VENDOR : the PCI vendor ID (e.g. "0x1186")
587 # TGT_PCI_DEVICE : the PCI device ID (e.g. "0x1300")
589 TGT_PCI_VENDOR = $(PCI_VENDOR_$(TGT_ROM_NAME))
590 TGT_PCI_DEVICE = $(PCI_DEVICE_$(TGT_ROM_NAME))
592 # Calculate link-time options for the current target
593 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
595 # TGT_LD_DRIVERS : symbols to require in order to drag in the relevant drivers
596 # (e.g. "obj_rtl8139 obj_prism2_pci")
597 # TGT_LD_IDS : symbols to define in order to fill in ID structures in the
598 # ROM header (e.g."pci_vendor_id=0x1186 pci_device_id=0x1300")
600 TGT_LD_DRIVERS = $(subst -,_,$(patsubst %,obj_%,$(TGT_DRIVERS)))
601 TGT_LD_PREFIX = obj_$(TGT_PREFIX)prefix
602 TGT_LD_IDS = pci_vendor_id=$(firstword $(TGT_PCI_VENDOR) 0) \
603 pci_device_id=$(firstword $(TGT_PCI_DEVICE) 0)
605 # Calculate linker flags based on link-time options for the current
606 # target type (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the
609 # TGT_LD_FLAGS : target-specific flags to pass to linker (e.g.
610 # "-u obj_zpciprefix -u obj_rtl8139 -u obj_prism2_pci
611 # --defsym pci_vendor=0x1186 --defsym pci_device=0x1300")
613 TGT_LD_FLAGS = $(foreach SYM,$(TGT_LD_PREFIX) $(TGT_LD_DRIVERS) obj_config,\
614 -u $(SYM) --defsym check_$(SYM)=$(SYM) ) \
615 $(patsubst %,--defsym %,$(TGT_LD_IDS))
617 # Calculate makerom flags for the specific target
618 # (e.g. "bin/dfe538--prism2_pci.zrom.tmp") and derive the variables:
620 # TGT_MAKEROM_FLAGS : target-specific flags for makerom (e.g.
621 # "-p 0x1186,0x1300")
623 TGT_MAKEROM_FLAGS = $(strip $(MAKEROM_FLAGS_$(TGT_ROM_NAME)) \
624 $(if $(TGT_PCI_VENDOR),$(strip -p $(TGT_PCI_VENDOR),$(TGT_PCI_DEVICE))))
626 # Calculate list of debugging versions of objects to be included in
629 DEBUG_LIST = $(subst $(COMMA), ,$(DEBUG))
630 DEBUG_OBJ_LEVEL = $(firstword $(word 2,$(subst :, ,$(1))) 1)
631 DEBUG_OBJ_BASE = $(word 1,$(subst :, ,$(1))).dbg$(call DEBUG_OBJ_LEVEL,$(1))
632 DEBUG_OBJ = $(BIN)/$(call DEBUG_OBJ_BASE,$(1)).o
633 DEBUG_ORIG_OBJ = $(BIN)/$(word 1,$(subst :, ,$(1))).o
634 DEBUG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_OBJ,$(D)))
635 DEBUG_ORIG_OBJS = $(foreach D,$(DEBUG_LIST),$(call DEBUG_ORIG_OBJ,$(D)))
636 BLIB_OBJS = $(DEBUG_OBJS) $(filter-out $(DEBUG_ORIG_OBJS),$(BOBJS))
638 # Print out all derived information for a given target.
641 @$(ECHO) 'Elements : $(TGT_ELEMENTS)'
642 @$(ECHO) 'Prefix : $(TGT_PREFIX)'
643 @$(ECHO) 'Drivers : $(TGT_DRIVERS)'
644 @$(ECHO) 'ROM name : $(TGT_ROM_NAME)'
645 @$(ECHO) 'Media : $(TGT_MEDIA)'
647 @$(ECHO) 'PCI vendor : $(TGT_PCI_VENDOR)'
648 @$(ECHO) 'PCI device : $(TGT_PCI_DEVICE)'
650 @$(ECHO) 'LD driver symbols : $(TGT_LD_DRIVERS)'
651 @$(ECHO) 'LD prefix symbols : $(TGT_LD_PREFIX)'
652 @$(ECHO) 'LD ID symbols : $(TGT_LD_IDS)'
654 @$(ECHO) 'LD target flags : $(TGT_LD_FLAGS)'
656 @$(ECHO) 'makerom target flags : $(TGT_MAKEROM_FLAGS)'
658 @$(ECHO) 'Debugging objects : $(DEBUG_OBJS)'
659 @$(ECHO) 'Replaced objects : $(DEBUG_ORIG_OBJS)'
661 # List of objects included in the last build of blib. This is needed
662 # in order to correctly rebuild blib whenever the list of objects
665 BLIB_LIST := $(BIN)/.blib.list
666 ifeq ($(wildcard $(BLIB_LIST)),)
667 BLIB_LIST_OBJS := <invalid>
669 BLIB_LIST_OBJS := $(shell cat $(BLIB_LIST))
671 ifneq ($(BLIB_LIST_OBJS),$(BLIB_OBJS))
672 $(shell $(ECHO) "$(BLIB_OBJS)" > $(BLIB_LIST))
677 VERYCLEANUP += $(BLIB_LIST)
679 # Library of all objects
682 $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
684 $(QM)$(ECHO) " [AR] $@"
685 $(Q)$(AR) r $@ $(BLIB_OBJS)
689 # Build an intermediate object file from the objects required for the
692 $(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT)
693 $(QM)$(ECHO) " [LD] $@"
694 $(Q)$(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
695 -Map $(BIN)/$*.tmp.map
696 $(Q)$(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
698 # Keep intermediate object file (useful for debugging)
699 .PRECIOUS : $(BIN)/%.tmp
701 # Show a linker map for the specified target
703 $(BIN)/%.map : $(BIN)/%.tmp
704 @less $(BIN)/$*.tmp.map
706 # Get objects list for the specified target
709 $(sort $(foreach OBJ_SYMBOL,\
710 $(filter obj_%,$(shell $(NM) $(1) | cut -d" " -f3)),\
711 $(patsubst obj_%,%,$(OBJ_SYMBOL))))
713 $(BIN)/%.objs : $(BIN)/%.tmp
714 $(Q)$(ECHO) $(call objs_list,$<)
715 $(BIN)/%.sizes : $(BIN)/%.tmp
716 $(Q)$(SIZE) -t $(foreach OBJ,$(call objs_list,$<),$(wildcard $(BIN)/$(subst _,?,$(OBJ)).o)) | \
719 # Get dependency list for the specified target
722 $(sort $(foreach OBJ,$(call objs_list,$(1)),$($(OBJ)_DEPS)))
724 $(BIN)/%.deps : $(BIN)/%.tmp
725 $(Q)$(ECHO) $(call deps_list,$<)
727 # Get unneeded source files for the specified target
730 $(sort $(filter-out $(call deps_list,$(1)),\
731 $(foreach BOBJ,$(BOBJS),\
732 $($(basename $(notdir $(BOBJ)))_DEPS))))
734 $(BIN)/%.nodeps : $(BIN)/%.tmp
735 $(Q)$(ECHO) $(call nodeps_list,$<)
737 # Get licensing verdict for the specified target
739 define unlicensed_deps_list
740 $(shell grep -L FILE_LICENCE $(call deps_list,$(1)))
743 $(patsubst __licence_%,%,\
744 $(filter __licence_%,$(shell $(NM) $(1) | cut -d" " -f3)))
746 $(BIN)/%.licence : $(BIN)/%.tmp
747 $(QM)$(ECHO) " [LICENCE] $@"
748 $(Q)$(if $(strip $(call unlicensed_deps_list,$<)),\
749 echo -n "Unable to determine licence because the following " ;\
750 echo "files are missing a licence declaration:" ;\
751 echo $(call unlicensed_deps_list,$<);\
753 $(LICENCE) $(call licence_list,$<))
755 # Extract compression information from intermediate object file
757 $(BIN)/%.zinfo : $(BIN)/%.tmp
758 $(QM)$(ECHO) " [ZINFO] $@"
759 $(Q)$(OBJCOPY) -O binary -j .zinfo $< $@
761 # Build raw binary file from intermediate object file
763 $(BIN)/%.bin : $(BIN)/%.tmp
764 $(QM)$(ECHO) " [BIN] $@"
765 $(Q)$(OBJCOPY) -O binary -R .zinfo $< $@
767 # Compress raw binary file
769 $(BIN)/%.zbin : $(BIN)/%.bin $(BIN)/%.zinfo $(ZBIN)
770 $(QM)$(ECHO) " [ZBIN] $@"
771 $(Q)$(ZBIN) $(BIN)/$*.bin $(BIN)/$*.zinfo > $@
773 # Rules for each media format. These are generated and placed in an
774 # external Makefile fragment. We could do this via $(eval ...), but
775 # that would require make >= 3.80.
777 # Note that there's an alternative way to generate most .rom images:
778 # they can be copied from their 'master' ROM image using cp and
779 # reprocessed with makerom to add the PCI IDs and ident string. The
780 # relevant rule would look something like:
782 # $(BIN)/dfe538%rom : $(BIN)/rtl8139%rom
786 # You can derive the ROM/driver relationships using the variables
787 # DRIVER_<rom> and/or ROMS_<driver>.
789 # We don't currently do this, because (a) it would require generating
790 # yet more Makefile fragments (since you need a rule for each ROM in
791 # ROMS), and (b) the linker is so fast that it probably wouldn't make
792 # much difference to the overall build time.
797 AUTO_MEDIA = $(filter-out $(NON_AUTO_MEDIA),$(MEDIA))
799 @$(ECHO) $(AUTO_MEDIA)
801 # media_template : create Makefile rules for specified media
803 # $(1) is the media name (e.g. "rom")
804 # $(2) is the full path to the .d file (e.g. "bin/deps/rom.media.d")
806 define media_template
808 @$(ECHO) " [MEDIADEPS] $(1)"
809 @$(MKDIR) -p $(dir $(2))
812 @$(ECHO_E) '$$(BIN)/%.$(1) : $$(BIN)/%.$(1).zbin' \
813 '\n\t$$(QM)$(ECHO) " [FINISH] $$@"' \
814 '\n\t$$(Q)$$(CP) $$< $$@' \
815 '\n\t$$(Q)$$(PAD_$(1))' \
816 '\n\t$$(Q)$$(FINALISE_$(1))' \
821 # Rule to generate the Makefile rules to be included
823 $(BIN)/deps/%.media.d : $(MAKEDEPS)
824 $(if $(filter $(AUTO_MEDIA),$*), \
825 $(call media_template,$*,$@), \
826 @$(ECHO) 'ERROR: $* is not an AUTO_MEDIA' ; exit 1)
828 # Calculate and include the list of Makefile rules files
830 MEDIA_DEPS = $(patsubst %,$(BIN)/deps/%.media.d,$(AUTO_MEDIA))
832 @$(ECHO) $(MEDIA_DEPS)
834 ifneq ($(MEDIA_DEPS),)
835 -include $(MEDIA_DEPS)
839 # Wrap up binary blobs (for embedded images)
841 $(BIN)/%.o : payload/%.img
842 $(QM)echo " [WRAP] $@"
843 $(Q)$(LD) -b binary -r -o $@ $< --undefined obj_payload \
846 BOBJS += $(patsubst payload/%.img,$(BIN)/%.o,$(wildcard payload/*.img))
848 # The "allXXXs" targets for each suffix
850 allall: allroms allzroms allpxes allisos alldsks
851 allroms allzroms : all%s : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).%)
852 allpxes allisos alldsks : all%s : $(foreach DRIVER,$(DRIVERS),$(BIN)/$(DRIVER).%)
856 $(BIN)/etherboot.% : $(BIN)/gpxe.%
857 ln -sf $(notdir $<) $@
861 ###############################################################################
863 # Rules for finalising files. TGT_MAKEROM_FLAGS is defined as part of
864 # the automatic build system and varies by target; it includes the
865 # "-p 0x1234,0x5678" string to set the PCI IDs.
867 FINALISE_rom = $(MAKEROM) $(MAKEROM_FLAGS) $(TGT_MAKEROM_FLAGS) \
869 FINALISE_hrom = $(FINALISE_rom)
870 FINALISE_xrom = $(MAKEROM) $(MAKEROM_FLAGS) $(TGT_MAKEROM_FLAGS) \
871 -i$(IDENT) -n -s 0 $@
873 # Some ROMs require specific flags to be passed to makerom.pl
875 MAKEROM_FLAGS_3c503 = -3
877 ###############################################################################
879 # The compression utilities
881 $(NRV2B) : util/nrv2b.c $(MAKEDEPS)
882 $(QM)$(ECHO) " [HOSTCC] $@"
883 $(Q)$(HOST_CC) -O2 -DENCODE -DDECODE -DMAIN -DVERBOSE -DNDEBUG \
884 -DBITSIZE=32 -DENDIAN=0 -o $@ $<
887 $(ZBIN) : util/zbin.c util/nrv2b.c $(MAKEDEPS)
888 $(QM)$(ECHO) " [HOSTCC] $@"
889 $(Q)$(HOST_CC) -O2 -o $@ $<
892 ###############################################################################
894 # The EFI image converter
896 ELF2EFI_CFLAGS := -I$(BINUTILS_DIR)/include -I$(BFD_DIR)/include \
897 -idirafter include -L$(BINUTILS_DIR)/lib -L$(BFD_DIR)/lib \
900 $(ELF2EFI32) : util/elf2efi.c $(MAKEDEPS)
901 $(QM)$(ECHO) " [HOSTCC] $@"
902 $(Q)$(HOST_CC) $(ELF2EFI_CFLAGS) -DMDE_CPU_IA32 -O2 -o $@ $<
903 CLEANUP += $(ELF2EFI32)
905 $(ELF2EFI64) : util/elf2efi.c $(MAKEDEPS)
906 $(QM)$(ECHO) " [HOSTCC] $@"
907 $(Q)$(HOST_CC) $(ELF2EFI_CFLAGS) -DMDE_CPU_X64 -O2 -o $@ $<
908 CLEANUP += $(ELF2EFI64)
910 $(EFIROM) : util/efirom.c $(MAKEDEPS)
911 $(QM)$(ECHO) " [HOSTCC] $@"
912 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
915 ###############################################################################
917 # The ICC fixup utility
919 $(ICCFIX) : util/iccfix.c $(MAKEDEPS)
920 $(QM)$(ECHO) " [HOSTCC] $@"
921 $(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
924 ###############################################################################
926 # Auto-incrementing build serial number. Append "bs" to your list of
927 # build targets to get a serial number printed at the end of the
928 # build. Enable -DBUILD_SERIAL in order to see it when the code runs.
930 BUILDSERIAL_H = config/.buildserial.h
931 BUILDSERIAL_NOW = config/.buildserial.now
932 BUILDSERIAL_NEXT = config/.buildserial.next
934 $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) :
937 $(BUILDSERIAL_H) : $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT)
938 $(ECHO) '#define BUILD_SERIAL_NUM $(shell cat $<)' > $@
940 ifeq ($(filter bs,$(MAKECMDGOALS)),bs)
941 $(shell diff -q $(BUILDSERIAL_NOW) $(BUILDSERIAL_NEXT) > /dev/null || \
942 cp -f $(BUILDSERIAL_NEXT) $(BUILDSERIAL_NOW))
945 bs : $(BUILDSERIAL_NOW)
946 @$(ECHO) $$(( $(shell cat $<) + 1 )) > $(BUILDSERIAL_NEXT)
947 @$(ECHO) "Build serial number is $(shell cat $<)"
949 ###############################################################################
951 # Build the TAGS file(s) for emacs
954 ctags -e -R -f $@ --exclude=bin
958 ###############################################################################
960 # Force rebuild for any given target
966 ###############################################################################
968 # Symbol table checks
973 SYMTAB = $(BIN)/symtab
975 $(OBJDUMP) -w -t $< > $@
977 CLEANUP += $(BIN)/symtab
984 ###############################################################################
986 # Build bochs symbol table
991 $(BIN)/%.bxs : $(BIN)/%.tmp
992 $(NM) $< | cut -d" " -f1,3 > $@
996 ###############################################################################
1003 $(BIN)/doxygen.cfg : doxygen.cfg $(MAKEDEPS)
1004 $(Q)$(PERL) -pe 's{\@SRCDIRS\@}{$(SRCDIRS)}; ' \
1005 -e 's{\@INCDIRS\@}{$(filter-out .,$(INCDIRS))}; ' \
1006 -e 's{\@BIN\@}{$(BIN)}; ' \
1007 -e 's{\@ARCH\@}{$(ARCH)}; ' \
1010 $(BIN)/doc : $(BIN)/doxygen.cfg
1018 $(Q)$(RM) -r $(BIN)/doc
1020 VERYCLEANUP += $(BIN)/doc
1023 @[ -f $(BIN)/doc/html/index.html ] || $(MAKE) $(BIN)/doc
1024 @if [ -n "$$BROWSER" ] ; then \
1025 ( $$BROWSER $(BIN)/doc/html/index.html & ) ; \
1027 $(ECHO) "Documentation index in $(BIN)/doc/html/index.html" ; \
1030 endif # defined(BIN)
1032 ###############################################################################
1040 $(RM) -r $(VERYCLEANUP)