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Add compile checking phase to build. 

The build textually includes all the code together in one unit for the
compiler in order to use gcc's -fwhole-program option.  Textually
including all the code can mask subtle code errors (eg, forgetting to
include the correct headers) and can lead to confusing error reports
from the compiler.  So, compile each file individually in addition to
the normal textually inclusive build.  This improves the error
checking while still obtaining the benefits of -fwhole-program.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2012-12-11 22:40:16 -05:00
parent fa2eacbb9a
commit c39a27297a
1 changed files with 8 additions and 4 deletions
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12
Makefile
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@ -109,6 +109,10 @@ $(OUT)%.s: %.c
@echo " Compiling to assembler $@"
$(Q)$(CC) $(CFLAGS16) -S -c $< -o $@
$(OUT)%.o: %.c $(OUT)autoconf.h
@echo " Compile checking $@"
$(Q)$(CC) $(CFLAGS32FLAT) -c $< -o $@
$(OUT)%.lds: %.lds.S
@echo " Precompiling $@"
$(Q)$(CPP) -P -D__ASSEMBLY__ $< -o $@
@ -122,11 +126,11 @@ $(OUT)asm-offsets.h: $(OUT)asm-offsets.s
@echo " Generating offset file $@"
$(Q)./tools/gen-offsets.sh $< $@
$(OUT)ccode16.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16), $(addprefix src/, $(SRC16)),$@)
$(OUT)ccode16.o: $(OUT)autoconf.h $(patsubst %.c, out/%.o,$(SRC16)) ; $(call whole-compile, $(CFLAGS16), $(addprefix src/, $(SRC16)),$@)
$(OUT)code32seg.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
$(OUT)code32seg.o: $(OUT)autoconf.h $(patsubst %.c, out/%.o,$(SRC32SEG)) ; $(call whole-compile, $(CFLAGS32SEG), $(addprefix src/, $(SRC32SEG)),$@)
$(OUT)ccode32flat.o: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
$(OUT)ccode32flat.o: $(OUT)autoconf.h $(patsubst %.c, out/%.o,$(SRC32FLAT)) ; $(call whole-compile, $(CFLAGS32FLAT), $(addprefix src/, $(SRC32FLAT)),$@)
$(OUT)romlayout.o: romlayout.S $(OUT)asm-offsets.h
@echo " Compiling (16bit) $@"
@ -216,7 +220,7 @@ $(OUT)%.hex: src/%.dsl ./tools/acpi_extract_preprocess.py ./tools/acpi_extract.p
$(Q)$(PYTHON) ./tools/acpi_extract.py $(OUT)$*.lst > $(OUT)$*.off
$(Q)cat $(OUT)$*.off > $@
$(OUT)ccode32flat.o: $(OUT)acpi-dsdt.hex $(OUT)ssdt-proc.hex $(OUT)ssdt-pcihp.hex $(OUT)ssdt-susp.hex $(OUT)q35-acpi-dsdt.hex
$(OUT)acpi.o: $(OUT)acpi-dsdt.hex $(OUT)ssdt-proc.hex $(OUT)ssdt-pcihp.hex $(OUT)ssdt-susp.hex $(OUT)q35-acpi-dsdt.hex
################ Kconfig rules