diff --git a/examples/threads/thread-basic/Makefile b/examples/threads/thread-basic/Makefile new file mode 100644 index 0000000..504d5c7 --- /dev/null +++ b/examples/threads/thread-basic/Makefile @@ -0,0 +1,196 @@ +#--------------------------------------------------------------------------------- +.SUFFIXES: +#--------------------------------------------------------------------------------- + +ifeq ($(strip $(DEVKITARM)),) +$(error "Please set DEVKITARM in your environment. export DEVKITARM=devkitARM") +endif + +TOPDIR ?= $(CURDIR) +include $(DEVKITARM)/3ds_rules + +#--------------------------------------------------------------------------------- +# TARGET is the name of the output +# BUILD is the directory where object files & intermediate files will be placed +# SOURCES is a list of directories containing source code +# DATA is a list of directories containing data files +# INCLUDES is a list of directories containing header files +# +# NO_SMDH: if set to anything, no SMDH file is generated. +# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional) +# APP_TITLE is the name of the app stored in the SMDH file (Optional) +# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional) +# APP_AUTHOR is the author of the app stored in the SMDH file (Optional) +# ICON is the filename of the icon (.png), relative to the project folder. +# If not set, it attempts to use one of the following (in this order): +# - .png +# - icon.png +# - /default_icon.png +#--------------------------------------------------------------------------------- +TARGET := $(notdir $(CURDIR)) +BUILD := build +SOURCES := source +DATA := data +INCLUDES := include +#ROMFS := romfs + +#--------------------------------------------------------------------------------- +# options for code generation +#--------------------------------------------------------------------------------- +ARCH := -march=armv6k -mtune=mpcore -mfloat-abi=hard + +CFLAGS := -g -Wall -O2 -mword-relocations \ + -fomit-frame-pointer -ffunction-sections \ + $(ARCH) + +CFLAGS += $(INCLUDE) -DARM11 -D_3DS + +CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11 + +ASFLAGS := -g $(ARCH) +LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map) -Wl,--gc-sections + +LIBS := -lctru -lm + +#--------------------------------------------------------------------------------- +# list of directories containing libraries, this must be the top level containing +# include and lib +#--------------------------------------------------------------------------------- +LIBDIRS := $(CTRULIB) + + +#--------------------------------------------------------------------------------- +# no real need to edit anything past this point unless you need to add additional +# rules for different file extensions +#--------------------------------------------------------------------------------- +ifneq ($(BUILD),$(notdir $(CURDIR))) +#--------------------------------------------------------------------------------- + +export OUTPUT := $(CURDIR)/$(TARGET) +export TOPDIR := $(CURDIR) + +export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \ + $(foreach dir,$(DATA),$(CURDIR)/$(dir)) + +export DEPSDIR := $(CURDIR)/$(BUILD) + +CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c))) +CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp))) +SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s))) +PICAFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica))) +SHLISTFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist))) +BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*))) + +#--------------------------------------------------------------------------------- +# use CXX for linking C++ projects, CC for standard C +#--------------------------------------------------------------------------------- +ifeq ($(strip $(CPPFILES)),) +#--------------------------------------------------------------------------------- + export LD := $(CC) +#--------------------------------------------------------------------------------- +else +#--------------------------------------------------------------------------------- + export LD := $(CXX) +#--------------------------------------------------------------------------------- +endif +#--------------------------------------------------------------------------------- + +export OFILES := $(addsuffix .o,$(BINFILES)) \ + $(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \ + $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o) + +export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \ + $(foreach dir,$(LIBDIRS),-I$(dir)/include) \ + -I$(CURDIR)/$(BUILD) + +export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib) + +ifeq ($(strip $(ICON)),) + icons := $(wildcard *.png) + ifneq (,$(findstring $(TARGET).png,$(icons))) + export APP_ICON := $(TOPDIR)/$(TARGET).png + else + ifneq (,$(findstring icon.png,$(icons))) + export APP_ICON := $(TOPDIR)/icon.png + endif + endif +else + export APP_ICON := $(TOPDIR)/$(ICON) +endif + +ifeq ($(strip $(NO_SMDH)),) + export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh +endif + +ifneq ($(ROMFS),) + export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS) +endif + +.PHONY: $(BUILD) clean all + +#--------------------------------------------------------------------------------- +all: $(BUILD) + +$(BUILD): + @[ -d $@ ] || mkdir -p $@ + @$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile + +#--------------------------------------------------------------------------------- +clean: + @echo clean ... + @rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf + + +#--------------------------------------------------------------------------------- +else + +DEPENDS := $(OFILES:.o=.d) + +#--------------------------------------------------------------------------------- +# main targets +#--------------------------------------------------------------------------------- +ifeq ($(strip $(NO_SMDH)),) +$(OUTPUT).3dsx : $(OUTPUT).elf $(OUTPUT).smdh +else +$(OUTPUT).3dsx : $(OUTPUT).elf +endif + +$(OUTPUT).elf : $(OFILES) + +#--------------------------------------------------------------------------------- +# you need a rule like this for each extension you use as binary data +#--------------------------------------------------------------------------------- +%.bin.o : %.bin +#--------------------------------------------------------------------------------- + @echo $(notdir $<) + @$(bin2o) + +#--------------------------------------------------------------------------------- +# rules for assembling GPU shaders +#--------------------------------------------------------------------------------- +define shader-as + $(eval CURBIN := $(patsubst %.shbin.o,%.shbin,$(notdir $@))) + picasso -o $(CURBIN) $1 + bin2s $(CURBIN) | $(AS) -o $@ + echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(CURBIN) | tr . _)`.h + echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(CURBIN) | tr . _)`.h + echo "extern const u32" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(CURBIN) | tr . _)`.h +endef + +%.shbin.o : %.v.pica %.g.pica + @echo $(notdir $^) + @$(call shader-as,$^) + +%.shbin.o : %.v.pica + @echo $(notdir $<) + @$(call shader-as,$<) + +%.shbin.o : %.shlist + @echo $(notdir $<) + @$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)/$(file))) + +-include $(DEPENDS) + +#--------------------------------------------------------------------------------------- +endif +#--------------------------------------------------------------------------------------- diff --git a/examples/threads/thread-basic/source/main.c b/examples/threads/thread-basic/source/main.c new file mode 100644 index 0000000..af4011e --- /dev/null +++ b/examples/threads/thread-basic/source/main.c @@ -0,0 +1,65 @@ +#include +#include +#include <3ds.h> + +#define NUMTHREADS 3 +#define STACKSIZE (4 * 1024) + +volatile bool runThreads = true; + +void threadMain(void *arg) +{ + u64 sleepDuration = 1000000ULL * (u32)arg; + int i = 0; + while (runThreads) + { + printf("thread%d says %d\n", (int)arg, i++); + svcSleepThread(sleepDuration); + } +} + +int main(int argc, char** argv) +{ + gfxInitDefault(); + consoleInit(GFX_TOP, NULL); + + Thread threads[NUMTHREADS]; + int i; + s32 prio = 0; + svcGetThreadPriority(&prio, CUR_THREAD_HANDLE); + printf("Main thread prio: 0x%lx\n", prio); + + for (i = 0; i < NUMTHREADS; i ++) + { + // The priority of these child threads must be higher (aka the value is lower) than that + // of the main thread, otherwise there is thread starvation due to stdio being locked. + threads[i] = threadCreate(threadMain, (void*)((i+1)*250), STACKSIZE, prio-1, -2, false); + printf("created thread %d: %p\n", i, threads[i]); + } + + // Main loop + while (aptMainLoop()) + { + gspWaitForVBlank(); + hidScanInput(); + + u32 kDown = hidKeysDown(); + if (kDown & KEY_START) + break; // break in order to return to hbmenu + + // Flush and swap framebuffers + gfxFlushBuffers(); + gfxSwapBuffers(); + } + + // tell threads to exit & wait for them to exit + runThreads = false; + for (i = 0; i < NUMTHREADS; i ++) + { + threadJoin(threads[i], U64_MAX); + threadFree(threads[i]); + } + + gfxExit(); + return 0; +}