mirror of
https://github.com/wiiu-env/KernelModule.git
synced 2025-05-13 21:47:08 +02:00
first commit
This commit is contained in:
Maschell
commit
92d751f1e7
10
.gitignore
vendored
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10
.gitignore
vendored
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*.cbp
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*.elf
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*.layout
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*.rpx
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build/
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*.save-failed
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.idea/
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cmake-build-debug/
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CMakeLists.txt
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*.wms
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142
Makefile
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142
Makefile
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#-------------------------------------------------------------------------------
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.SUFFIXES:
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#-------------------------------------------------------------------------------
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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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TOPDIR ?= $(CURDIR)
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include $(DEVKITPRO)/wums/share/wums_rules
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WUMS_ROOT := $(DEVKITPRO)/wums
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WUT_ROOT := $(DEVKITPRO)/wut
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#-------------------------------------------------------------------------------
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# TARGET is the name of the output
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# BUILD is the directory where object files & intermediate files will be placed
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# SOURCES is a list of directories containing source code
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# DATA is a list of directories containing data files
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# INCLUDES is a list of directories containing header files
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#-------------------------------------------------------------------------------
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TARGET := KernelModule
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BUILD := build
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SOURCES := source
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DATA := data
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INCLUDES := source
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#-------------------------------------------------------------------------------
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# options for code generation
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#-------------------------------------------------------------------------------
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CFLAGS := -g -Wall -O0 -ffunction-sections\
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$(MACHDEP)
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CFLAGS += $(INCLUDE) -D__WIIU__ -D__WUT__
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CXXFLAGS := $(CFLAGS) -std=c++17
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ASFLAGS := -g $(ARCH)
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LDFLAGS = -g $(ARCH) $(WUMSSPECS) -Wl,-Map,$(notdir $*.map)
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LIBS := -lwums -lwut
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#-------------------------------------------------------------------------------
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# list of directories containing libraries, this must be the top level
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# containing include and lib
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#-------------------------------------------------------------------------------
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LIBDIRS := $(PORTLIBS) $(WUT_ROOT) $(WUMS_ROOT)
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#-------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#-------------------------------------------------------------------------------
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ifneq ($(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 VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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export DEPSDIR := $(CURDIR)/$(BUILD)
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CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
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#-------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#-------------------------------------------------------------------------------
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ifeq ($(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 .,_,$(BINFILES)))
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export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I$(CURDIR)/$(BUILD)
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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: $(BUILD)
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$(BUILD):
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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#-------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@rm -fr $(BUILD) $(TARGET).rpx $(TARGET).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 : $(OUTPUT).wms
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$(OUTPUT).wms : $(OUTPUT).elf
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$(OUTPUT).elf : $(OFILES)
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$(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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#---------------------------------------------------------------------------------
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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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-include $(DEPENDS)
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#-------------------------------------------------------------------------------
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endif
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#-------------------------------------------------------------------------------
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27
source/kernel.s
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27
source/kernel.s
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.global SCKernelCopyData
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SCKernelCopyData:
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// Disable data address translation
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mfmsr %r6
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li %r7, 0x10
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andc %r6, %r6, %r7
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mtmsr %r6
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// Copy data
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addi %r3, %r3, -1
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addi %r4, %r4, -1
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mtctr %r5
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SCKernelCopyData_loop:
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lbzu %r5, 1(%r4)
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stbu %r5, 1(%r3)
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bdnz SCKernelCopyData_loop
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// Enable data address translation
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ori %r6, %r6, 0x10
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mtmsr %r6
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blr
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.global KernelCopyDataInternal
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KernelCopyDataInternal:
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li %r0, 0x2500
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sc
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blr
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95
source/main.c
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95
source/main.c
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#include <whb/log.h>
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#include <whb/log_udp.h>
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#include <coreinit/memorymap.h>
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#include <wums.h>
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#include <coreinit/cache.h>
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WUMS_MODULE_EXPORT_NAME("homebrew_kernel");
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#define KERN_SYSCALL_TBL1 0xFFE84C70 //Unknown
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#define KERN_SYSCALL_TBL2 0xFFE85070 //Games
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#define KERN_SYSCALL_TBL3 0xFFE85470 //Loader
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#define KERN_SYSCALL_TBL4 0xFFEAAA60 //Home menu
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#define KERN_SYSCALL_TBL5 0xFFEAAE60 //Browser
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extern void SCKernelCopyData(uint32_t dst, uint32_t src, uint32_t len);
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extern void KernelCopyDataInternal(uint32_t dst, uint32_t src, uint32_t len);
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void kernelInitialize();
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extern void KernelCopyData(uint32_t dst, uint32_t src, uint32_t len){
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kernelInitialize();
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KernelCopyDataInternal(dst, src, len);
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}
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WUMS_EXPORT_FUNCTION(KernelCopyData);
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/* Write a 32-bit word with kernel permissions */
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void __attribute__ ((noinline)) kern_write(void *addr, uint32_t value) {
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asm volatile (
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"li 3,1\n"
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"li 4,0\n"
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"mr 5,%1\n"
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"li 6,0\n"
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"li 7,0\n"
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"lis 8,1\n"
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"mr 9,%0\n"
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"mr %1,1\n"
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"li 0,0x3500\n"
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"sc\n"
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"nop\n"
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"mr 1,%1\n"
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:
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: "r"(addr), "r"(value)
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: "memory", "ctr", "lr", "0", "3", "4", "5", "6", "7", "8", "9", "10",
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"11", "12"
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);
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}
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/* Read a 32-bit word with kernel permissions */
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uint32_t __attribute__ ((noinline)) kern_read(const void *addr) {
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uint32_t result;
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asm volatile (
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"li 3,1\n"
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"li 4,0\n"
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"li 5,0\n"
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"li 6,0\n"
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"li 7,0\n"
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"lis 8,1\n"
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"mr 9,%1\n"
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"li 0,0x3400\n"
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"mr %0,1\n"
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"sc\n"
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"nop\n"
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"mr 1,%0\n"
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"mr %0,3\n"
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: "=r"(result)
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: "b"(addr)
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: "memory", "ctr", "lr", "0", "3", "4", "5", "6", "7", "8", "9", "10",
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"11", "12"
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);
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return result;
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}
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void PatchSyscall(int index, uint32_t addr) {
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kern_write((void *) (KERN_SYSCALL_TBL1 + index * 4), addr);
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kern_write((void *) (KERN_SYSCALL_TBL2 + index * 4), addr);
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kern_write((void *) (KERN_SYSCALL_TBL3 + index * 4), addr);
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kern_write((void *) (KERN_SYSCALL_TBL4 + index * 4), addr);
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kern_write((void *) (KERN_SYSCALL_TBL5 + index * 4), addr);
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}
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void kernelInitialize() {
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static uint8_t ucSyscallsSetupRequired = 1;
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if (!ucSyscallsSetupRequired){
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return;
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}
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ucSyscallsSetupRequired = 0;
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PatchSyscall(0x25, (uint32_t) SCKernelCopyData);
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}
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int main(int argc, char **argv) {
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return 0;
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}
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