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https://git.videolan.org/git/ffmpeg.git
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bc8e044d8c
The macro hell sometimes make it difficult to trace the source of an error, so it is easier to analyze the preprocessed output. This patch makes this automatical by specifying DBG=1 on the command line: a file ffmpeg/dir/file.asm gets preprocessed to builddir/dir/file.dbg.asm, which is then compiled. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
163 lines
4.1 KiB
Makefile
163 lines
4.1 KiB
Makefile
#
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# common bits used by all libraries
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#
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# first so "all" becomes default target
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all: all-yes
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DEFAULT_YASMD=.dbg
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ifndef DBG
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YASMD=
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else
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YASMD=$(DEFAULT_YASMD)
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endif
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ifndef SUBDIR
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ifndef V
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Q = @
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ECHO = printf "$(1)\t%s\n" $(2)
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BRIEF = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP WINDRES
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SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM RANLIB RM
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MSG = $@
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M = @$(call ECHO,$(TAG),$@);
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$(foreach VAR,$(BRIEF), \
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$(eval override $(VAR) = @$$(call ECHO,$(VAR),$$(MSG)); $($(VAR))))
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$(foreach VAR,$(SILENT),$(eval override $(VAR) = @$($(VAR))))
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$(eval INSTALL = @$(call ECHO,INSTALL,$$(^:$(SRC_DIR)/%=%)); $(INSTALL))
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endif
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ALLFFLIBS = avcodec avdevice avfilter avformat avresample avutil postproc swscale swresample
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# NASM requires -I path terminated with /
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IFLAGS := -I. -I$(SRC_PATH)/
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CPPFLAGS := $(IFLAGS) $(CPPFLAGS)
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CFLAGS += $(ECFLAGS)
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CCFLAGS = $(CPPFLAGS) $(CFLAGS)
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ASFLAGS := $(CPPFLAGS) $(ASFLAGS)
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CXXFLAGS += $(CPPFLAGS) $(CFLAGS)
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YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm
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HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
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LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
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define COMPILE
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$(call $(1)DEP,$(1))
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$($(1)) $($(1)FLAGS) $($(1)_DEPFLAGS) $($(1)_C) $($(1)_O) $<
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endef
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COMPILE_C = $(call COMPILE,CC)
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COMPILE_CXX = $(call COMPILE,CXX)
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COMPILE_S = $(call COMPILE,AS)
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COMPILE_HOSTC = $(call COMPILE,HOSTCC)
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%.o: %.c
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$(COMPILE_C)
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%.o: %.cpp
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$(COMPILE_CXX)
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%.o: %.m
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$(COMPILE_C)
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%.s: %.c
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$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
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%.o: %.S
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$(COMPILE_S)
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%_host.o: %.c
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$(COMPILE_HOSTC)
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%.o: %.rc
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$(WINDRES) $(IFLAGS) --preprocessor "$(DEPWINDRES) -E -xc-header -DRC_INVOKED $(CC_DEPFLAGS)" -o $@ $<
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%.i: %.c
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$(CC) $(CCFLAGS) $(CC_E) $<
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%.h.c:
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$(Q)echo '#include "$*.h"' >$@
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%.ver: %.v
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$(Q)sed 's/$$MAJOR/$($(basename $(@F))_VERSION_MAJOR)/' $^ > $@
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%.c %.h: TAG = GEN
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# Dummy rule to stop make trying to rebuild removed or renamed headers
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%.h:
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@:
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# Disable suffix rules. Most of the builtin rules are suffix rules,
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# so this saves some time on slow systems.
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.SUFFIXES:
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# Do not delete intermediate files from chains of implicit rules
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$(OBJS):
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endif
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include $(SRC_PATH)/arch.mak
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OBJS += $(OBJS-yes)
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SLIBOBJS += $(SLIBOBJS-yes)
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FFLIBS := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
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TESTPROGS += $(TESTPROGS-yes)
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LDLIBS = $(FFLIBS:%=%$(BUILDSUF))
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FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
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OBJS := $(sort $(OBJS:%=$(SUBDIR)%))
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SLIBOBJS := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
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TESTOBJS := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
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TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))
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HOSTOBJS := $(HOSTPROGS:%=$(SUBDIR)%.o)
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HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
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TOOLS += $(TOOLS-yes)
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TOOLOBJS := $(TOOLS:%=tools/%.o)
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TOOLS := $(TOOLS:%=tools/%$(EXESUF))
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HEADERS += $(HEADERS-yes)
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PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
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DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))
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SRC_DIR := $(SRC_PATH)/lib$(NAME)
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ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
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SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
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SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
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HOBJS = $(filter-out $(SKIPHEADERS:.h=.h.o),$(ALLHEADERS:.h=.h.o))
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checkheaders: $(HOBJS)
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.SECONDARY: $(HOBJS:.o=.c)
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alltools: $(TOOLS)
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$(HOSTOBJS): %.o: %.c
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$(COMPILE_HOSTC)
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$(HOSTPROGS): %$(HOSTEXESUF): %.o
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$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTLIBS)
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$(OBJS): | $(sort $(dir $(OBJS)))
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$(HOBJS): | $(sort $(dir $(HOBJS)))
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$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
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$(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
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$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
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$(TOOLOBJS): | tools
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OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))
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CLEANSUFFIXES = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda *$(DEFAULT_YASMD).asm
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DISTCLEANSUFFIXES = *.pc
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LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
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define RULES
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clean::
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$(RM) $(OBJS) $(OBJS:.o=.d)
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$(RM) $(HOSTPROGS)
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$(RM) $(TOOLS)
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endef
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$(eval $(RULES))
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-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d))
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