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Makefile: add missing dependencies for parallel execution of make

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This patch adds the following dependencies among recipes:

 - Building of any C file depends on $(HV_CONFIG_TIMESTAMP) which indicates
   the presence of generated configuration files.
 - Source files listed in $(VM_CFG_C_SRCS), which are the generated
   configuration files, depends on $(HV_CONFIG_TIMESTAMP)

With the dependencies above, the build system can now safely be executed in
parallel, e.g. `make -j4`.

Tracked-On: #5874
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Junjie Mao 2021-03-29 14:08:18 +08:00 committed by wenlingz
parent 52d2b0954a
commit 14e8e68d39
1 changed files with 6 additions and 4 deletions
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10
hypervisor/Makefile
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@ -383,7 +383,7 @@ pre_build: $(HV_CONFIG_H) $(HV_CONFIG_TIMESTAMP)
python3 ../misc/config_tools/acpi_gen/bin_gen.py --board $(BOARD) --scenario $(SCENARIO) --asl $(HV_CONFIG_DIR) --out $(HV_OBJDIR)/acpi
.PHONY: header
header: $(VERSION) $(HV_CONFIG_H)
header: $(VERSION) $(HV_CONFIG_H) $(HV_CONFIG_TIMESTAMP)
.PHONY: lib-mod boot-mod hw-mod vp-base-mod vp-dm-mod vp-trusty-mod vp-hcall-mod sys-init-mod
$(LIB_MOD): $(LIB_C_OBJS) $(LIB_S_OBJS)
@ -493,14 +493,16 @@ $(VERSION): $(HV_CONFIG_H)
-include $(C_OBJS:.o=.d)
-include $(S_OBJS:.o=.d)
$(HV_OBJDIR)/%.o: %.c $(VERSION) $(HV_CONFIG_H)
$(HV_OBJDIR)/%.o: %.c header
[ ! -e $@ ] && mkdir -p $(dir $@) && mkdir -p $(HV_MODDIR); \
$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@ -MMD -MT $@
$(VM_CFG_C_OBJS): %.o: %.c $(VERSION) $(HV_CONFIG_H)
$(VM_CFG_C_SRCS): %.c: $(HV_CONFIG_TIMESTAMP)
$(VM_CFG_C_OBJS): %.o: %.c header
[ ! -e $@ ] && mkdir -p $(dir $@) && mkdir -p $(HV_MODDIR); \
$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. -c $(CFLAGS) $(ARCH_CFLAGS) $< -o $@ -MMD -MT $@
$(HV_OBJDIR)/%.o: %.S $(HV_CONFIG_H)
$(HV_OBJDIR)/%.o: %.S header
[ ! -e $@ ] && mkdir -p $(dir $@) && mkdir -p $(HV_MODDIR); \
$(CC) $(patsubst %, -I%, $(INCLUDE_PATH)) -I. $(ASFLAGS) $(ARCH_ASFLAGS) -c $< -o $@ -MMD -MT $@