mirror of
https://github.com/switchbrew/libnx.git
synced 2025-06-21 04:22:50 +02:00
Added buildscripts/ and README.
This commit is contained in:
yellows8
parent
b86cec7924
commit
d2768384bf
5
README.md
Normal file
5
README.md
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@ -0,0 +1,5 @@
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Nintendo Switch AArch64-only userland library. Based on libctru.
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The \*rules files under buildscripts/ should be copied to "devkitA64/", while the content of buildscripts/lib/ should be copied to "devkitA64/aarch64-none-elf/lib/".
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* Build switch_crt0 with: aarch64-none-elf-gcc -march=armv8-a -x assembler-with-cpp -c switch_crt0.s -o switch_crt0.o
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111
buildscripts/base_rules
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111
buildscripts/base_rules
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include $(DEVKITA64)/base_tools
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#---------------------------------------------------------------------------------
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# add portlibs path
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#---------------------------------------------------------------------------------
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export PORTLIBS_PATH := $(DEVKITPRO)/portlibs
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#---------------------------------------------------------------------------------
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%.a:
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#---------------------------------------------------------------------------------
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@echo $(notdir $@)
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@rm -f $@
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$(AR) -rc $@ $^
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#---------------------------------------------------------------------------------
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%.arm.o: %.arm.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.arm.d $(CXXFLAGS) -marm -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.arm.o: %.arm.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.arm.d $(CFLAGS) -marm -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.arm.o: %.arm.m
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.arm.d $(OBJCFLAGS) -marm -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.thumb.o: %.thumb.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.thumb.d $(CXXFLAGS) -mthumb -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.thumb.o: %.thumb.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.thumb.d $(CFLAGS) -mthumb -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.thumb.o: %.thumb.m
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.thumb.d $(OBJCFLAGS) -mthumb -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.iwram.o: %.iwram.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.iwram.d $(CXXFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.iwram.o: %.iwram.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.iwram.d $(CFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.iwram.o: %.iwram.m
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.iwram.d $(OBJCFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.itcm.o: %.itcm.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.itcm.d $(CXXFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.itcm.o: %.itcm.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.itcm.d $(CFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.itcm.o: %.itcm.m
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.itcm.d $(OBJCFLAGS) -marm -mlong-calls -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.o: %.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.o: %.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.o: %.m
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(OBJCFLAGS) -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.o: %.s
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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%.o: %.S
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@ $(ERROR_FILTER)
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#---------------------------------------------------------------------------------
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# canned command sequence for binary data
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#---------------------------------------------------------------------------------
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define bin2o
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bin2s $< | $(AS) -o $(@)
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(<F) | tr . _)`.h
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(<F) | tr . _)`.h
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echo "extern const u32" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(<F) | tr . _)`.h
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endef
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33
buildscripts/base_tools
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33
buildscripts/base_tools
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@ -0,0 +1,33 @@
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#---------------------------------------------------------------------------------
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# make sure we have bash on OSX
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#---------------------------------------------------------------------------------
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UNAME_S := $(shell uname -s)
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UNAME_R := $(shell uname -r)
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ifneq (,$(findstring Darwin,$(UNAME_S)))
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export SHELL=/bin/bash
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endif
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#---------------------------------------------------------------------------------
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# path to tools
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#---------------------------------------------------------------------------------
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export PATH := $(DEVKITARM)/bin:$(PATH)
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#---------------------------------------------------------------------------------
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# the prefix on the compiler executables
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#---------------------------------------------------------------------------------
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PREFIX := aarch64-none-elf-
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export CC := $(PREFIX)gcc
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export CXX := $(PREFIX)g++
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export AS := $(PREFIX)as
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export AR := $(PREFIX)gcc-ar
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export OBJCOPY := $(PREFIX)objcopy
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export STRIP := $(PREFIX)strip
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export NM := $(PREFIX)gcc-nm
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export RANLIB := $(PREFIX)gcc-ranlib
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ISVC=$(or $(VCBUILDHELPER_COMMAND),$(MSBUILDEXTENSIONSPATH32),$(MSBUILDEXTENSIONSPATH))
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ifneq (,$(ISVC))
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ERROR_FILTER := 2>&1 | sed -e 's/\(.[a-zA-Z]\+\):\([0-9]\+\):/\1(\2):/g'
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endif
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185
buildscripts/lib/switch.ld
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185
buildscripts/lib/switch.ld
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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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}
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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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.text ALIGN(0x1000) :
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{
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/* .init */
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KEEP( *(.crt0) )
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KEEP( *(.init) )
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. = ALIGN(4);
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/* .text */
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*(.text)
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*(.text.*)
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*(.glue_7)
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*(.glue_7t)
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*(.stub)
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*(.gnu.warning)
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*(.gnu.linkonce.t*)
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. = ALIGN(4);
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/* .fini */
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KEEP( *(.fini) )
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. = ALIGN(4);
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} : code
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/* =========== RODATA section =========== */
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.rodata ALIGN(0x1000) :
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{
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*(.rodata)
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*(.roda)
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*(.rodata.*)
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*all.rodata*(*)
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*(.gnu.linkonce.r*)
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SORT(CONSTRUCTORS)
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. = ALIGN(4);
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} : rodata
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.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } : rodata
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__exidx_start = .;
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ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } : rodata
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__exidx_end = .;
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/* =========== DATA section =========== */
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.data ALIGN(0x1000) :
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{
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*(.data)
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*(.data.*)
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*(.gnu.linkonce.d*)
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CONSTRUCTORS
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. = ALIGN(4);
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} : data
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.tdata ALIGN(4) :
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{
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__tdata_lma = .;
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*(.tdata)
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*(.tdata.*)
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*(.gnu.linkonce.td.*)
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. = ALIGN(4);
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__tdata_lma_end = .;
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} : data
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.tbss ALIGN(4) :
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{
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*(.tbss)
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*(.tbss.*)
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*(.gnu.linkonce.tb.*)
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*(.tcommon)
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. = ALIGN(4);
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} : data
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.preinit_array ALIGN(4) :
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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(4) :
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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(4) :
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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(4) :
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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(4) :
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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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__bss_start__ = .;
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.bss ALIGN(4) :
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{
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*(.dynbss)
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*(.bss)
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*(.bss.*)
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*(.gnu.linkonce.b*)
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*(COMMON)
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. = ALIGN(4);
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/* Reserve space for the TLS segment of the main thread */
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__tls_start = .;
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. += + SIZEOF(.tdata) + SIZEOF(.tbss);
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__tls_end = .;
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} : data
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__bss_end__ = .;
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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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8
buildscripts/lib/switch.specs
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8
buildscripts/lib/switch.specs
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@ -0,0 +1,8 @@
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%rename link old_link
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*link:
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%(old_link) -T switch.ld%s -d --emit-relocs --export-dynamic --gc-sections
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*startfile:
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switch_crt0%O%s crti%O%s crtbegin%O%s
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60
buildscripts/lib/switch_crt0.s
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60
buildscripts/lib/switch_crt0.s
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.section ".crt0","ax"
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.global _start, __service_ptr, __apt_appid, __heap_size, __linear_heap_size, __system_arglist, __system_runflags
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#---------------------------------------------------------------------------------
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_start:
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#---------------------------------------------------------------------------------
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bl startup
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startup:
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mov x4, x30
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sub x4, x4, #4 //x4 = _start addr
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// Clear the BSS section
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ldr x0, =__bss_start__
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ldr x1, =__bss_end__
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sub x1, x1, x0
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add x0, x0, x4
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bl ClearMem
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// System initialization
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//mov x0, x4
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//bl initSystem
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// Set up argc/argv arguments for main()
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/*ldr x0, =__system_argc
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ldr x1, =__system_argv
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ldr x0, [x0]
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ldr x1, [x1]*/
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mov x0, #0
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mov x1, #0
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// Jump to user code
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ldr x3, =main
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add x3, x3, x4
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//ldr x30, =__ctru_exit
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//br x3
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blr x3
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_sysexit:
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svc 0x7
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b .
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#---------------------------------------------------------------------------------
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# Clear memory to 0x00 if length != 0
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# x0 = Start Address
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# x1 = Length
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#---------------------------------------------------------------------------------
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ClearMem:
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#---------------------------------------------------------------------------------
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mov x2, #3 // Round down to nearest word boundary
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add x1, x1, x2 // Shouldn't be needed
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bics x1, x1, x2 // Clear 2 LSB (and set Z)
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beq ClearMem_end // Quit if copy size is 0
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mov x2, #0
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ClrLoop:
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str x2, [x0], #4
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subs x1, x1, #4
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bne ClrLoop
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ClearMem_end:
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ret
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15
buildscripts/switch_rules
Normal file
15
buildscripts/switch_rules
Normal file
@ -0,0 +1,15 @@
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ifeq ($(strip $(DEVKITPRO)),)
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$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>devkitPro)
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endif
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include $(DEVKITA64)/base_rules
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PORTLIBS := $(PORTLIBS_PATH)/armv8-a $(PORTLIBS_PATH)/switch
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LIBNX ?= $(DEVKITPRO)/libnx
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#---------------------------------------------------------------------------------
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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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