diff options
Diffstat (limited to 'rules.mak')
| -rw-r--r-- | rules.mak | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/rules.mak b/rules.mak deleted file mode 100644 index bbb2667928..0000000000 --- a/rules.mak +++ /dev/null @@ -1,392 +0,0 @@ - -# These are used when we want to do substitutions without confusing Make -NULL := -SPACE := $(NULL) # -COMMA := , - -# Don't use implicit rules or variables -# we have explicit rules for everything -MAKEFLAGS += -rR - -# Files with this suffixes are final, don't try to generate them -# using implicit rules -%/trace-events: -%.hx: -%.py: -%.objs: -%.d: -%.h: -%.c: -%.cc: -%.cpp: -%.m: -%.mak: -clean-target: - -# Flags for dependency generation -QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(@D)/$(*F).d - -# Compiler searches the source file dir first, but in vpath builds -# we need to make it search the build dir too, before any other -# explicit search paths. There are two search locations in the build -# dir, one absolute and the other relative to the compiler working -# directory. These are the same for target-independent files, but -# different for target-dependent ones. -QEMU_LOCAL_INCLUDES = -iquote $(BUILD_DIR)/$(@D) -iquote $(@D) - -WL_U := -Wl,-u, -find-symbols = $(if $1, $(sort $(shell $(NM) -P -g $1 | $2))) -defined-symbols = $(call find-symbols,$1,awk '$$2!="U"{print $$1}') -undefined-symbols = $(call find-symbols,$1,awk '$$2=="U"{print $$1}') - -# All the .mo objects in -m variables are also added into corresponding -y -# variable in unnest-vars, but filtered out here, when LINK is called. -# -# The .mo objects are supposed to be linked as a DSO, for module build. So here -# they are only used as a placeholders to generate those "archive undefined" -# symbol options (-Wl,-u,$symbol_name), which are the archive functions -# referenced by the code in the DSO. -# -# Also the presence in -y variables will also guarantee they are built before -# linking executables that will load them. So we can look up symbol reference -# in LINK. -# -# This is necessary because the exectuable itself may not use the function, in -# which case the function would not be linked in. Then the DSO loading will -# fail because of the missing symbol. -process-archive-undefs = $(filter-out %.a %.mo,$1) \ - $(addprefix $(WL_U), \ - $(filter $(call defined-symbols,$(filter %.a, $1)), \ - $(call undefined-symbols,$(filter %.mo,$1)))) \ - $(filter %.a,$1) - -extract-libs = $(strip $(foreach o,$(filter-out %.mo,$1),$($o-libs))) -expand-objs = $(strip $(sort $(filter %.o,$1)) \ - $(foreach o,$(filter %.mo,$1),$($o-objs)) \ - $(filter-out %.o %.mo,$1)) - -%.o: %.c - $(call quiet-command,$(CC) $(QEMU_LOCAL_INCLUDES) $(QEMU_INCLUDES) \ - $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) \ - -c -o $@ $<,"CC","$(TARGET_DIR)$@") -%.o: %.rc - $(call quiet-command,$(WINDRES) -I. -o $@ $<,"RC","$(TARGET_DIR)$@") - -# If we have a CXX we might have some C++ objects, in which case we -# must link with the C++ compiler, not the plain C compiler. -LINKPROG = $(or $(CXX),$(CC)) - -LINK = $(call quiet-command, $(LINKPROG) $(QEMU_LDFLAGS) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \ - $(call process-archive-undefs, $1) \ - $(version-obj-y) $(call extract-libs,$1) $(LIBS),"LINK","$(TARGET_DIR)$@") - -%.o: %.S - $(call quiet-command,$(CCAS) $(QEMU_LOCAL_INCLUDES) $(QEMU_INCLUDES) \ - $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \ - -c -o $@ $<,"CCAS","$(TARGET_DIR)$@") - -%.o: %.cc - $(call quiet-command,$(CXX) $(QEMU_LOCAL_INCLUDES) $(QEMU_INCLUDES) \ - $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) \ - -c -o $@ $<,"CXX","$(TARGET_DIR)$@") - -%.o: %.cpp - $(call quiet-command,$(CXX) $(QEMU_LOCAL_INCLUDES) $(QEMU_INCLUDES) \ - $(QEMU_CXXFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) \ - -c -o $@ $<,"CXX","$(TARGET_DIR)$@") - -%.o: %.m - $(call quiet-command,$(OBJCC) $(QEMU_LOCAL_INCLUDES) $(QEMU_INCLUDES) \ - $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) $($@-cflags) \ - -c -o $@ $<,"OBJC","$(TARGET_DIR)$@") - -%.o: %.dtrace - $(call quiet-command,dtrace -o $@ -G -s $<,"GEN","$(TARGET_DIR)$@") - -DSO_OBJ_CFLAGS := -fPIC -DBUILD_DSO -module-common.o: CFLAGS += $(DSO_OBJ_CFLAGS) -%$(DSOSUF): LDFLAGS += $(LDFLAGS_SHARED) -%$(DSOSUF): %.mo - $(call LINK,$^) - @# Copy to build root so modules can be loaded when program started without install - $(if $(findstring /,$@),$(call quiet-command,cp $@ $(subst /,-,$@),"CP","$(subst /,-,$@)")) - - -LD_REL := $(CC) -nostdlib $(LD_REL_FLAGS) - -%.mo: - $(call quiet-command,$(LD_REL) -o $@ $^,"LD","$(TARGET_DIR)$@") - -.PHONY: modules -modules: - -%$(EXESUF): %.o - $(call LINK,$(filter %.o %.a %.mo, $^)) - -%.a: - $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"AR","$(TARGET_DIR)$@") - -# Usage: $(call quiet-command,command and args,"NAME","args to print") -# This will run "command and args", and either: -# if V=1 just print the whole command and args -# otherwise print the 'quiet' output in the format " NAME args to print" -# NAME should be a short name of the command, 7 letters or fewer. -# If called with only a single argument, will print nothing in quiet mode. -quiet-command = $(if $(V),$1,$(if $(2),@printf " %-7s %s\n" $2 $3 && $1, @$1)) - -# cc-option -# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0) - -cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \ - >/dev/null 2>&1 && echo OK), $2, $3) -cc-c-option = $(if $(shell $(CC) $1 $2 -c -o /dev/null -xc /dev/null \ - >/dev/null 2>&1 && echo OK), $2, $3) - -VPATH_SUFFIXES = %.c %.h %.S %.cc %.cpp %.m %.mak %.texi %.sh %.rc -set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1))) - -# install-prog list, dir -define install-prog - $(INSTALL_DIR) "$2" - $(INSTALL_PROG) $1 "$2" - $(if $(STRIP),$(STRIP) $(foreach T,$1,"$2/$(notdir $T)"),) -endef - -# find-in-path -# Usage: $(call find-in-path, prog) -# Looks in the PATH if the argument contains no slash, else only considers one -# specific directory. Returns an # empty string if the program doesn't exist -# there. -find-in-path = $(if $(findstring /, $1), \ - $(wildcard $1), \ - $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH))))) - -# Logical functions (for operating on y/n values like CONFIG_FOO vars) -# Inputs to these must be either "y" (true) or "n" or "" (both false) -# Output is always either "y" or "n". -# Usage: $(call land,$(CONFIG_FOO),$(CONFIG_BAR)) -# Logical NOT -lnot = $(if $(subst n,,$1),n,y) -# Logical AND -land = $(if $(findstring yy,$1$2),y,n) -# Logical OR -lor = $(if $(findstring y,$1$2),y,n) -# Logical XOR (note that this is the inverse of leqv) -lxor = $(if $(filter $(call lnot,$1),$(call lnot,$2)),n,y) -# Logical equivalence (note that leqv "","n" is true) -leqv = $(if $(filter $(call lnot,$1),$(call lnot,$2)),y,n) -# Logical if: like make's $(if) but with an leqv-like test -lif = $(if $(subst n,,$1),$2,$3) - -# String testing functions: inputs to these can be any string; -# the output is always either "y" or "n". Leading and trailing whitespace -# is ignored when comparing strings. -# String equality -eq = $(if $(subst $2,,$1)$(subst $1,,$2),n,y) -# String inequality -ne = $(if $(subst $2,,$1)$(subst $1,,$2),y,n) -# Emptiness/non-emptiness tests: -isempty = $(if $1,n,y) -notempty = $(if $1,y,n) - -# Generate files with tracetool -TRACETOOL=$(PYTHON) $(SRC_PATH)/scripts/tracetool.py - -# Generate timestamp files for .h include files - -config-%.h: config-%.h-timestamp - @cmp $< $@ >/dev/null 2>&1 || cp $< $@ - -config-%.h-timestamp: config-%.mak $(SRC_PATH)/scripts/create_config - $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@,"GEN","$(TARGET_DIR)config-$*.h") - -.PHONY: clean-timestamp -clean-timestamp: - rm -f *.timestamp -clean: clean-timestamp - -# will delete the target of a rule if commands exit with a nonzero exit status -.DELETE_ON_ERROR: - -# save-vars -# Usage: $(call save-vars, vars) -# Save each variable $v in $vars as save-vars-$v, save their object's -# variables, then clear $v. saved-vars-$v contains the variables that -# where saved for the objects, in order to speedup load-vars. -define save-vars - $(foreach v,$1, - $(eval save-vars-$v := $(value $v)) - $(eval saved-vars-$v := $(foreach o,$($v), \ - $(if $($o-cflags), $o-cflags $(eval save-vars-$o-cflags := $($o-cflags))$(eval $o-cflags := )) \ - $(if $($o-libs), $o-libs $(eval save-vars-$o-libs := $($o-libs))$(eval $o-libs := )) \ - $(if $($o-objs), $o-objs $(eval save-vars-$o-objs := $($o-objs))$(eval $o-objs := )))) - $(eval $v := )) -endef - -# load-vars -# Usage: $(call load-vars, vars, add_var) -# Load the saved value for each variable in @vars, and the per object -# variables. -# Append @add_var's current value to the loaded value. -define load-vars - $(eval $2-new-value := $(value $2)) - $(foreach v,$1, - $(eval $v := $(value save-vars-$v)) - $(foreach o,$(saved-vars-$v), - $(eval $o := $(save-vars-$o)) $(eval save-vars-$o := )) - $(eval save-vars-$v := ) - $(eval saved-vars-$v := )) - $(eval $2 := $(value $2) $($2-new-value)) -endef - -# fix-paths -# Usage: $(call fix-paths, obj_path, src_path, vars) -# Add prefix @obj_path to all objects in @vars, and add prefix @src_path to all -# directories in @vars. -define fix-paths - $(foreach v,$3, - $(foreach o,$($v), - $(if $($o-libs), - $(eval $1$o-libs := $($o-libs))) - $(if $($o-cflags), - $(eval $1$o-cflags := $($o-cflags))) - $(if $($o-objs), - $(eval $1$o-objs := $(addprefix $1,$($o-objs))))) - $(eval $v := $(addprefix $1,$(filter-out %/,$($v))) \ - $(addprefix $2,$(filter %/,$($v))))) -endef - -# unnest-var-recursive -# Usage: $(call unnest-var-recursive, obj_prefix, vars, var) -# -# Unnest @var by including subdir Makefile.objs, while protect others in @vars -# unchanged. -# -# @obj_prefix is the starting point of object path prefix. -# -define unnest-var-recursive - $(eval dirs := $(sort $(filter %/,$($3)))) - $(eval $3 := $(filter-out %/,$($3))) - $(foreach d,$(dirs:%/=%), - $(call save-vars,$2) - $(eval obj := $(if $1,$1/)$d) - $(eval -include $(SRC_PATH)/$d/Makefile.objs) - $(call fix-paths,$(if $1,$1/)$d/,$d/,$2) - $(call load-vars,$2,$3) - $(call unnest-var-recursive,$1,$2,$3)) -endef - -# unnest-vars -# Usage: $(call unnest-vars, obj_prefix, vars) -# -# @obj_prefix: object path prefix, can be empty, or '..', etc. Don't include -# ending '/'. -# -# @vars: the list of variable names to unnest. -# -# This macro will scan subdirectories's Makefile.objs, include them, to build -# up each variable listed in @vars. -# -# Per object and per module cflags and libs are saved with relative path fixed -# as well, those variables include -libs, -cflags and -objs. Items in -objs are -# also fixed to relative path against SRC_PATH plus the prefix @obj_prefix. -# -# All nested variables postfixed by -m in names are treated as DSO variables, -# and will be built as modules, if enabled. -# -# A simple example of the unnest: -# -# obj_prefix = .. -# vars = hot cold -# hot = fire.o sun.o season/ -# cold = snow.o water/ season/ -# -# Unnest through a faked source directory structure: -# -# SRC_PATH -# ├── water -# │ └── Makefile.objs──────────────────┐ -# │ │ hot += steam.o │ -# │ │ cold += ice.mo │ -# │ │ ice.mo-libs := -licemaker │ -# │ │ ice.mo-objs := ice1.o ice2.o │ -# │ └──────────────────────────────┘ -# │ -# └── season -# └── Makefile.objs──────┐ -# │ hot += summer.o │ -# │ cold += winter.o │ -# └──────────────────┘ -# -# In the end, the result will be: -# -# hot = ../fire.o ../sun.o ../season/summer.o -# cold = ../snow.o ../water/ice.mo ../season/winter.o -# ../water/ice.mo-libs = -licemaker -# ../water/ice.mo-objs = ../water/ice1.o ../water/ice2.o -# -# Note that 'hot' didn't include 'season/' in the input, so 'summer.o' is not -# included. -# -define unnest-vars - # In the case of target build (i.e. $1 == ..), fix path for top level - # Makefile.objs objects - $(if $1,$(call fix-paths,$1/,,$2)) - - # Descend and include every subdir Makefile.objs - $(foreach v, $2, - $(call unnest-var-recursive,$1,$2,$v) - # Pass the .mo-cflags and .mo-libs along to its member objects - $(foreach o, $(filter %.mo,$($v)), - $(foreach p,$($o-objs), - $(if $($o-cflags), $(eval $p-cflags += $($o-cflags))) - $(if $($o-libs), $(eval $p-libs += $($o-libs)))))) - - # For all %.mo objects that are directly added into -y, just expand them - $(foreach v,$(filter %-y,$2), - $(eval $v := $(foreach o,$($v),$(if $($o-objs),$($o-objs),$o)))) - - $(foreach v,$(filter %-m,$2), - # All .o found in *-m variables are single object modules, create .mo - # for them - $(foreach o,$(filter %.o,$($v)), - $(eval $(o:%.o=%.mo)-objs := $o)) - # Now unify .o in -m variable to .mo - $(eval $v := $($v:%.o=%.mo)) - $(eval modules-m += $($v)) - - # For module build, build shared libraries during "make modules" - # For non-module build, add -m to -y - $(if $(CONFIG_MODULES), - $(foreach o,$($v), - $(eval $($o-objs): CFLAGS += $(DSO_OBJ_CFLAGS)) - $(eval $o: $($o-objs))) - $(eval $(patsubst %-m,%-y,$v) += $($v)) - $(eval modules: $($v:%.mo=%$(DSOSUF))), - $(eval $(patsubst %-m,%-y,$v) += $(call expand-objs, $($v))))) - - # Post-process all the unnested vars - $(foreach v,$2, - $(foreach o, $(filter %.mo,$($v)), - # Find all the .mo objects in variables and add dependency rules - # according to .mo-objs. Report error if not set - $(if $($o-objs), - $(eval $(o:%.mo=%$(DSOSUF)): module-common.o $($o-objs)), - $(error $o added in $v but $o-objs is not set))) - $(shell mkdir -p ./ $(sort $(dir $($v)))) - # Include all the .d files - $(eval -include $(patsubst %.o,%.d,$(patsubst %.mo,%.d,$($v)))) - $(eval $v := $(filter-out %/,$($v)))) -endef - -TEXI2MAN = $(call quiet-command, \ - perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $(TEXI2PODFLAGS) $< $@.pod && \ - $(POD2MAN) --section=$(subst .,,$(suffix $@)) --center=" " --release=" " $@.pod > $@, \ - "GEN","$@") - -%.1: - $(call TEXI2MAN) -%.7: - $(call TEXI2MAN) -%.8: - $(call TEXI2MAN) |