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Makefile: sort out CFLAGS and LDFLAGS

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xinyangli 2024-12-11 17:01:38 +08:00
parent 5ca5e6972b
commit 3e33f2e0f1
Signed by: xin
SSH key fingerprint: SHA256:UU5pRTl7NiLFJbWJZa+snLylZSXIz5rgHmwjzv8v4oE
4 changed files with 39 additions and 20 deletions
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44
Makefile
View file

@ -74,22 +74,27 @@ endif
## 5. Compilation Rules
BUILDDIR := $(DST_DIR)
COMMON_CFLAGS := $(CFLAGS) -g -O3 -MMD -Wall \
-fno-asynchronous-unwind-tables -fno-builtin -fno-stack-protector \
-Wno-main -U_FORTIFY_SOURCE -fvisibility=hidden
### Build libam
#### Include archetecture specific build flags
include $(AM_HOME)/scripts/$(ARCH).mk
COMMON_CFLAGS += -D__ARCH_$(shell echo $(ARCH) | tr a-z A-Z | tr - _) \
-D__ISA_$(shell echo $(ISA) | tr a-z A-Z)__ \
-DARCH_H=\"$(ARCH_H)\"
INTERFACE_CFLAGS += -DARCH_H=\"$(ARCH_H)\" \
-fno-asynchronous-unwind-tables \
-fno-builtin -fno-stack-protector \
-Wno-main -U_FORTIFY_SOURCE -fvisibility=hidden
#### Generating build rules with ADD_LIBRARY call. Target specific build flags can be tuned via changing prefixed variables (AM_ here)
AM_INCPATH += $(AM_HOME)/am/include $(AM_HOME)/am/src $(AM_HOME)/klib/include
AM_CFLAGS += -lm -g -O3 -MMD -Wall $(addprefix -I, $(AM_INCPATH)) \
-D__ISA__=\"$(ISA)\" -D__ISA_$(shell echo $(ISA) | tr a-z A-Z)__ \
-D__ARCH__=$(ARCH) -D__ARCH_$(shell echo $(ARCH) | tr a-z A-Z | tr - _) \
-D__PLATFORM__=$(PLATFORM) -D__PLATFORM_$(shell echo $(PLATFORM) | tr a-z A-Z | tr - _) \
-DARCH_H=\"$(ARCH_H)\"
AM_CFLAGS += $(COMMON_CFLAGS) $(addprefix -I, $(AM_INCPATH))
AM_INTERFACE_INCPATH += $(AM_HOME)/am/include $(AM_HOME)/klib/include
AM_INTERFACE_CFLAGS += $(addprefix -I, $(AM_INTERFACE_INCPATH:%=$(INC_INSTALLDIR))) \
-lm -DARCH_H=\"$(ARCH_H)\" -fno-asynchronous-unwind-tables -fno-builtin -fno-stack-protector \
-Wno-main -U_FORTIFY_SOURCE -fvisibility=hidden
AM_INTERFACE_CFLAGS +=
AM_INTERFACE_LDFLAGS += -lm -lam-$(ARCH)
$(eval $(call ADD_LIBRARY,$(LIB_BUILDDIR)/libam-$(ARCH).a,AM_))
@ -98,10 +103,10 @@ $(eval $(call ADD_LIBRARY,$(LIB_BUILDDIR)/libam-$(ARCH).a,AM_))
KLIB_SRCS := $(shell find klib/src/ -name "*.c")
KLIB_INCPATH += $(AM_HOME)/am/include $(AM_HOME)/klib/include
KLIB_CFLAGS += -MMD -Wall $(addprefix -I, $(KLIB_INCPATH)) \
-DARCH_H=\"$(ARCH_H)\"
KLIB_CFLAGS += $(COMMON_CFLAGS) $(addprefix -I, $(KLIB_INCPATH))
KLIB_INTERFACE_INCPATH += $(AM_HOME)/am/include $(AM_HOME)/klib/include
KLIB_INTERFACE_CFLAGS += -DARCH_H=\"$(ARCH_H)\" $(addprefix -I, $(KLIB_INTERFACE_INCPATH:%=$(INC_INSTALLDIR)))
KLIB_INTERFACE_CFLAGS +=
KLIB_INTERFACE_LDFLAGS += -lklib-$(ARCH)
$(eval $(call ADD_LIBRARY,$(LIB_BUILDDIR)/libklib-$(ARCH).a,KLIB_))
@ -126,8 +131,10 @@ image-dep: $(OBJS) $(LIBS)
### Install rules
INTERFACE_INCPATH += $(sort $(KLIB_INTERFACE_INCPATH) $(AM_INTERFACE_INCPATH))
INTERFACE_CFLAGS += $(sort $(KLIB_INTERFACE_CFLAGS) $(AM_INTERFACE_CFLAGS))
INTERFACE_LDFLAGS += $(sort $(KLIB_LDFLAGS) $(AM_LDFLAGS))
# TODO: Use sort here will cause error on seperated flags, such as: -e _start
# but without sort, duplicated flags will not be removed.
INTERFACE_CFLAGS += $(addprefix -I, $(INTERFACE_INCPATH:%=$(INC_INSTALLDIR))) $(sort $(KLIB_INTERFACE_CFLAGS) $(AM_INTERFACE_CFLAGS))
INTERFACE_LDFLAGS += -L$(LIB_INSTALLDIR) $(sort $(KLIB_INTERFACE_LDFLAGS) $(AM_INTERFACE_LDFLAGS))
EXPORT_FLAGS_FILE := $(LIB_INSTALLDIR)/make/flags-$(ARCH).mk
EXPORT_FLAGS_TEMPLATE := $(file < $(AM_HOME)/scripts/templates/flags.tmpl)
@ -146,6 +153,13 @@ $(EXPORT_FLAGS_FILE):
@echo + INSTALL $(patsubst $(INSTALLDIR)/%,%,$@)
@install -Dm644 <(printf $(EXPORT_FLAGS_TEMPLATE)) $(EXPORT_FLAGS_FILE)
LDSCRIPTS := $(patsubst $(AM_HOME)/scripts/%, $(LIB_INSTALLDIR)/ldscripts/%, $(shell find $(AM_HOME)/scripts -name "*.ld"))
$(LDSCRIPTS): $(LIB_INSTALLDIR)/ldscripts/%: $(AM_HOME)/scripts/%
@echo + INSTALL $(patsubst $(INSTALLDIR)/%,%,$@)
@mkdir -p $(LIB_INSTALLDIR)/ldscripts
@install -Dm644 $< $(dir $@)
install-libs: $(LIBS)
@echo + INSTALL LIBS: $(LIBS)
@install -dm755 $(LIB_INSTALLDIR)
@ -157,7 +171,7 @@ install-headers: $(HEADERS) # Headers needs to be reinstalled if they are change
@install -dm755 $(INC_INSTALLDIR)
@cp -r $(addsuffix /*, $(INTERFACE_INCPATH)) $(INC_INSTALLDIR)
install: $(EXPORTS) install-libs install-headers
install: $(EXPORTS) install-libs install-headers $(LDSCRIPTS)
### Clean a single project (remove `build/`)
clean:

1
am/src/platform/nemu/ioe/ioe.c
View file

@ -59,3 +59,4 @@ bool ioe_init() {
void ioe_read(int reg, void *buf) { ((handler_t)lut[reg])(buf); }
void ioe_write(int reg, void *buf) { ((handler_t)lut[reg])(buf); }

2
scripts/helpers/rules.mk
View file

@ -56,7 +56,7 @@ $(eval $(call COMPILE_RULES,$(2)))
$(1).elf: $$($(2)OBJS)
@mkdir -p $$(dir $$@)
@echo + LD "->" $$(patsubst $$(CURDIR)/%,%,$(1).elf)
@$$(LD) $$($(2)_LDFLAGS) -o $$@ --start-group $$($(2)OBJS) --end-group
@$$(LD) $$($(2)LDFLAGS) -o $$@ --start-group $$($(2)OBJS) --end-group
$(1).bin: $(1).elf
@echo + OBJCOPY "->" $$(patsubst $$(CURDIR)/%,%,$(1))
@$$(OBJCOPY) -S --set-section-flags .bss=alloc,contents -O binary $(1).elf $(1).bin

12
scripts/platform/nemu.mk
View file

@ -7,10 +7,14 @@ AM_SRCS := am/src/platform/nemu/trm.c \
am/src/platform/nemu/ioe/disk.c \
am/src/platform/nemu/mpe.c
AM_CFLAGS += -fdata-sections -ffunction-sections
AM_LDFLAGS += -T $(AM_HOME)/scripts/linker.ld \
--defsym=_pmem_start=0x80000000 --defsym=_entry_offset=0x0
AM_LDFLAGS += --gc-sections -e _start
AM_PUBLIC_CFLAGS := -fdata-sections -ffunction-sections
AM_PUBLIC_LDFLAGS := --defsym=_pmem_start=0x80000000 --defsym=_entry_offset=0x0 \
--gc-sections --entry=_start
AM_CFLAGS += $(AM_PUBLIC_CFLAGS)
AM_LDFLAGS += -T$(AM_HOME)/scripts/linker.ld $(AM_PUBLIC_LDFLAGS)
AM_INTERFACE_CFLAGS += $(AM_PUBLIC_CFLAGS)
AM_INTERFACE_LDFLAGS += -T$(LIB_INSTALLDIR)/ldscripts/linker.ld $(AM_PUBLIC_LDFLAGS)
AM_CFLAGS += -DMAINARGS=\"$(mainargs)\"
AM_INCPATH += $(AM_HOME)/am/src/platform/nemu/include