mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-22 12:21:18 +00:00
meso: skeleton buildsystem for kernel
This commit is contained in:
Michael Scire
parent
6ee305464a
commit
3982afdd6b
9 changed files with 368 additions and 8 deletions
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@ -12,7 +12,7 @@ export CFLAGS := $(ATMOSPHERE_CFLAGS) $(SETTINGS) $(DEFINES) $(INCLUDE)
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export CXXFLAGS := $(CFLAGS) $(ATMOSPHERE_CXXFLAGS)
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export ASFLAGS := $(ATMOSPHERE_ASFLAGS) $(SETTINGS) $(DEFINES)
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export LDFLAGS = -specs=$(TOPDIR)/kernel_ldr.specs -nostdlib -nostartfiles -g $(SETTINGS) -Wl,-Map,$(notdir $*.map)
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export LDFLAGS = -specs=$(TOPDIR)/$(notdir $(TOPDIR)).specs -nostdlib -nostartfiles -g $(SETTINGS) -Wl,-Map,$(notdir $*.map)
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export CXXWRAPS := -Wl,--wrap,__cxa_pure_virtual \
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-Wl,--wrap,__cxa_throw \
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@ -25,7 +25,6 @@ export CXXWRAPS := -Wl,--wrap,__cxa_pure_virtual \
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-Wl,--wrap,__cxa_call_terminate \
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-Wl,--wrap,__gxx_personality_v0 \
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-Wl,--wrap,_Unwind_Resume \
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-Wl,--wrap,_Unwind_Resume \
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-Wl,--wrap,_ZSt19__throw_logic_errorPKc \
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-Wl,--wrap,_ZSt20__throw_length_errorPKc \
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-Wl,--wrap,_ZNSt11logic_errorC2EPKc
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@ -1,12 +1,20 @@
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MODULES := kernel_ldr
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TARGETS := kernel kernel_ldr
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CLEAN_TARGETS := $(foreach target,$(TARGETS),$(target)-clean)
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SUBFOLDERS := $(MODULES)
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TOPTARGETS := all clean
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all: mesosphere.bin
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$(TOPTARGETS): $(SUBFOLDERS)
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clean: $(CLEAN_TARGETS)
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@rm -f mesosphere.bin
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$(SUBFOLDERS):
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$(MAKE) -C $@ $(MAKECMDGOALS)
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mesosphere.bin: $(TARGETS)
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@echo "todo: py script"
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.PHONY: $(TOPTARGETS) $(SUBFOLDERS)
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$(TARGETS):
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$(MAKE) -C $@
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$(CLEAN_TARGETS):
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$(MAKE) -C $(@:-clean=) clean
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.PHONY: all clean $(TARGETS) $(CLEAN_TARGETS)
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116
mesosphere/kernel/Makefile
Normal file
116
mesosphere/kernel/Makefile
Normal file
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@ -0,0 +1,116 @@
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#---------------------------------------------------------------------------------
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# pull in common atmosphere configuration
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#---------------------------------------------------------------------------------
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include $(dir $(abspath $(lastword $(MAKEFILE_LIST))))/../../libraries/config/templates/mesosphere.mk
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#---------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#---------------------------------------------------------------------------------
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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#---------------------------------------------------------------------------------
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export OUTPUT := $(CURDIR)/$(TARGET)
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export TOPDIR := $(CURDIR)
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export DEPSDIR := $(CURDIR)/$(BUILD)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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CFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.c)) $(notdir $(wildcard $(dir)/*.board.*.c)) $(notdir $(wildcard $(dir)/*.os.*.c)), \
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$(notdir $(wildcard $(dir)/*.c))))
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CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).c)))
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CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).c)))
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CFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.cpp)) $(notdir $(wildcard $(dir)/*.board.*.cpp)) $(notdir $(wildcard $(dir)/*.os.*.cpp)), \
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$(notdir $(wildcard $(dir)/*.cpp))))
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CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).cpp)))
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CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).cpp)))
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CPPFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(filter-out $(notdir $(wildcard $(dir)/*.arch.*.s)) $(notdir $(wildcard $(dir)/*.board.*.s)) $(notdir $(wildcard $(dir)/*.os.*.s)), \
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$(notdir $(wildcard $(dir)/*.s))))
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SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.arch.$(ATMOSPHERE_ARCH_NAME).s)))
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SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.board.$(ATMOSPHERE_BOARD_NAME).s)))
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SFILES += $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.os.$(ATMOSPHERE_OS_NAME).s)))
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(CPPFILES)),)
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#---------------------------------------------------------------------------------
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export LD := $(CC)
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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export LD := $(CXX)
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#---------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------
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export OFILES_BIN := $(addsuffix .o,$(BINFILES))
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export OFILES_SRC := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
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export OFILES := $(OFILES_BIN) $(OFILES_SRC)
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export HFILES_BIN := $(addsuffix .h,$(subst .,_,$(subst -,_,$(BINFILES))))
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export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I.
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export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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.PHONY: $(BUILD) clean all
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#---------------------------------------------------------------------------------
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all: $(BUILD) check_libmeso
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$(BUILD): check_libmeso
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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check_libmeso:
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@$(MAKE) --no-print-directory -C ../../libraries/libmesosphere
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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@rm -fr $(BUILD) $(OUTPUT).bin $(OUTPUT).elf
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#---------------------------------------------------------------------------------
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else
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.PHONY: all
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DEPENDS := $(OFILES:.o=.d)
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#---------------------------------------------------------------------------------
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# main targets
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#---------------------------------------------------------------------------------
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all : $(OUTPUT).bin
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$(OUTPUT).bin : $(OUTPUT).elf
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$(OBJCOPY) -S -O binary --set-section-flags .bss=alloc,load,contents $< $@
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@echo built ... $(notdir $@)
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$(OUTPUT).elf : $(OFILES) ../../../libraries/libmesosphere/lib/libmesosphere.a
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%.elf:
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@echo linking $(notdir $@)
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$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
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@$(NM) -CSn $@ > $(notdir $*.lst)
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$(OFILES_SRC) : $(HFILES_BIN)
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#---------------------------------------------------------------------------------
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# you need a rule like this for each extension you use as binary data
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#---------------------------------------------------------------------------------
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%.bin.o %_bin.h: %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(bin2o)
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-include $(DEPENDS)
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#---------------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------------
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205
mesosphere/kernel/kernel.ld
Normal file
205
mesosphere/kernel/kernel.ld
Normal file
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@ -0,0 +1,205 @@
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OUTPUT_ARCH(aarch64)
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ENTRY(_start)
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PHDRS
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{
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code PT_LOAD FLAGS(5) /* Read | Execute */;
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rodata PT_LOAD FLAGS(4) /* Read */;
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data PT_LOAD FLAGS(6) /* Read | Write */;
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dyn PT_DYNAMIC;
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}
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SECTIONS
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{
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/* =========== CODE section =========== */
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PROVIDE(__start__ = 0x0);
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. = __start__;
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__code_start = . ;
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.crt0 :
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{
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KEEP (*(.crt0))
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. = ALIGN(8);
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} :code
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.init :
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{
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KEEP( *(.init) )
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. = ALIGN(8);
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} :code
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.plt :
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{
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*(.plt)
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*(.iplt)
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. = ALIGN(8);
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} :code
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.text :
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{
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*(.text.unlikely .text.*_unlikely .text.unlikely.*)
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*(.text.exit .text.exit.*)
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*(.text.startup .text.startup.*)
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*(.text.hot .text.hot.*)
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*(.text .stub .text.* .gnu.linkonce.t.*)
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. = ALIGN(8);
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} :code
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.fini :
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{
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KEEP( *(.fini) )
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. = ALIGN(8);
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} :code
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/* .vectors. */
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. = ALIGN(2K);
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__vectors_start__ = . ;
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.vectors :
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{
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KEEP( *(.vectors) )
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. = ALIGN(8);
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} :code
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/* =========== RODATA section =========== */
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. = ALIGN(0x1000);
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__rodata_start = . ;
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.rodata :
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{
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*(.rodata .rodata.* .gnu.linkonce.r.*)
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. = ALIGN(8);
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} :rodata
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.eh_frame_hdr : { __eh_frame_hdr_start = .; *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) __eh_frame_hdr_end = .; } :rodata
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.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } :rodata
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.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } :rodata
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.gnu_extab : ONLY_IF_RO { *(.gnu_extab*) } : rodata
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.dynamic : { *(.dynamic) } :rodata :dyn
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.dynsym : { *(.dynsym) } :rodata
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.dynstr : { *(.dynstr) } :rodata
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.rela.dyn : { *(.rela.*) } :rodata
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.interp : { *(.interp) } :rodata
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.hash : { *(.hash) } :rodata
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.gnu.hash : { *(.gnu.hash) } :rodata
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.gnu.version : { *(.gnu.version) } :rodata
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.gnu.version_d : { *(.gnu.version_d) } :rodata
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.gnu.version_r : { *(.gnu.version_r) } :rodata
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.note.gnu.build-id : { *(.note.gnu.build-id) } :rodata
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/* =========== DATA section =========== */
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. = ALIGN(0x1000);
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__data_start = . ;
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.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) } :data
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.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } :data
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.gnu_extab : ONLY_IF_RW { *(.gnu_extab*) } : data
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.exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } :data
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.preinit_array ALIGN(8) :
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{
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PROVIDE (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE (__preinit_array_end = .);
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} :data
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.init_array ALIGN(8) :
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{
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PROVIDE (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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PROVIDE (__init_array_end = .);
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} :data
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.fini_array ALIGN(8) :
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{
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PROVIDE (__fini_array_start = .);
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE (__fini_array_end = .);
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} :data
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.ctors ALIGN(8) :
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{
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KEEP (*crtbegin.o(.ctors)) /* MUST be first -- GCC requires it */
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} :data
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.dtors ALIGN(8) :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} :data
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__got_start__ = .;
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.got : { *(.got) *(.igot) } :data
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.got.plt : { *(.got.plt) *(.igot.plt) } :data
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__got_end__ = .;
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.data ALIGN(8) :
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{
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*(.data .data.* .gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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} :data
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__bss_start__ = .;
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.bss ALIGN(8) :
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{
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(8);
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} : data
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__bss_end__ = .;
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. = ALIGN(0x1000);
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__end__ = ABSOLUTE(.);
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/* ==================
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==== Metadata ====
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================== */
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/* Discard sections that difficult post-processing */
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/DISCARD/ : { *(.group .comment .note) }
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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}
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7
mesosphere/kernel/kernel.specs
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7
mesosphere/kernel/kernel.specs
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@ -0,0 +1,7 @@
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%rename link old_link
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*link:
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%(old_link) -T %:getenv(TOPDIR /kernel.ld) -pie --gc-sections -z text -z nodynamic-undefined-weak -nostdlib -nostartfiles
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*startfile:
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crti%O%s crtbegin%O%s
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25
mesosphere/kernel/source/arch/arm64/start.s
Normal file
25
mesosphere/kernel/source/arch/arm64/start.s
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@ -0,0 +1,25 @@
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/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
|
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* For some reason GAS doesn't know about it, even with .cpu cortex-a57 */
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#define cpuactlr_el1 s3_1_c15_c2_0
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#define cpuectlr_el1 s3_1_c15_c2_1
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.section .crt0.text.start, "ax", %progbits
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.global _start
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_start:
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/* TODO */
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b _start
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