Install the sd_loader directly to have a bit more control
This commit is contained in:
Maschell
parent
db5adae785
commit
46fd3c52c6
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@ -1,3 +1,3 @@
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[submodule "homebrew_launcher_installer"]
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path = homebrew_launcher_installer
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url = https://github.com/wiiu-env/homebrew_launcher_installer
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url = git@github.com:wiiu-env/homebrew_launcher_installer.git
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20
Makefile
20
Makefile
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@ -33,8 +33,8 @@ CFLAGS += $(INCLUDE) -D__WIIU__ -D__WUT__
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CXXFLAGS := $(CFLAGS) -std=c++20
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ASFLAGS := -g $(ARCH)
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LDFLAGS = -g $(ARCH) $(RPXSPECS) -Wl,-Map,$(notdir $*.map)
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ASFLAGS := -g $(ARCH) -mregnames
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LDFLAGS = -g $(ARCH) $(RPXSPECS) --entry=_start -Wl,-Map,$(notdir $*.map)
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LIBS := -lwut -lz
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@ -80,7 +80,7 @@ endif
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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) payload.elf.o
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export OFILES := $(OFILES_BIN) $(OFILES_SRC) sd_loader.elf.o
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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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@ -96,13 +96,13 @@ all: $(BUILD)
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$(BUILD):
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@[ -d $@ ] || mkdir -p $@
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make -C homebrew_launcher_installer
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make -C homebrew_launcher_installer/sd_loader
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@$(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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make clean -C homebrew_launcher_installer
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make clean -C homebrew_launcher_installer/sd_loader
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@rm -fr $(BUILD) $(TARGET).rpx $(TARGET).elf
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#-------------------------------------------------------------------------------
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@ -115,23 +115,23 @@ DEPENDS := $(OFILES:.o=.d)
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# main targets
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#-------------------------------------------------------------------------------
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hbl_installer_payload := ../homebrew_launcher_installer/payload.elf
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sd_loader := ../homebrew_launcher_installer/sd_loader/sd_loader.elf
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all : $(OUTPUT).rpx
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$(hbl_installer_payload):
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make -C ../homebrew_launcher_installer
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$(sd_loader):
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make -C ../homebrew_launcher_installer/sd_loader
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$(OUTPUT).rpx : $(OUTPUT).elf
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$(OUTPUT).elf : $(OFILES)
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$(OFILES) : hbl_installer_payload.h
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$(OFILES) : sd_loader.h
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$(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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hbl_installer_payload.h: $(hbl_installer_payload)
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sd_loader.h: $(sd_loader)
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@bin2s -a 32 -H `(echo $(<F) | tr . _)`.h $< | $(AS) -o $(<F).o
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@echo '#pragma once' > $@
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@printf '#include "' >> $@
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@ -0,0 +1,197 @@
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#include <stdint.h>
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#include <string.h>
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#include <malloc.h>
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#include <coreinit/dynload.h>
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#include <coreinit/debug.h>
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#include <coreinit/memorymap.h>
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#include <coreinit/cache.h>
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#include "../homebrew_launcher_installer/sd_loader/src/common.h"
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#include "../homebrew_launcher_installer/sd_loader/src/elf_abi.h"
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#include "sd_loader_elf.h"
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#define KERN_SYSCALL_TBL_1 0xFFE84C70 // unknown
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#define KERN_SYSCALL_TBL_2 0xFFE85070 // works with games
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#define KERN_SYSCALL_TBL_3 0xFFE85470 // works with loader
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#define KERN_SYSCALL_TBL_4 0xFFEAAA60 // works with home menu
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#define KERN_SYSCALL_TBL_5 0xFFEAAE60 // works with browser (previously KERN_SYSCALL_TBL)
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#define address_LiWaitIopComplete 0x01010180
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#define address_LiWaitIopCompleteWithInterrupts 0x0101006C
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#define address_LiWaitOneChunk 0x0100080C
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#define address_PrepareTitle_hook 0xFFF184E4
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#define address_sgIsLoadingBuffer 0xEFE19E80
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#define address_gDynloadInitialized 0xEFE13DBC
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#define ADDRESS_OSTitle_main_entry_ptr 0x1005E040
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#define ADDRESS_main_entry_hook 0x0101c56c
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/* assembly functions */
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extern "C" void Syscall_0x36(void);
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extern "C" void KernelPatches(void);
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extern "C" void SCKernelCopyData(unsigned int addr, unsigned int src, unsigned int len);
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extern "C" void SC_0x25_KernelCopyData(unsigned int addr, unsigned int src, unsigned int len);
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void __attribute__ ((noinline)) kern_write(void *addr, uint32_t value);
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static void InstallPatches();
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static unsigned int load_elf_image(const uint8_t *elfstart) {
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Elf32_Ehdr *ehdr;
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Elf32_Phdr *phdrs;
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unsigned char *image;
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int i;
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ehdr = (Elf32_Ehdr *) elfstart;
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if (ehdr->e_phoff == 0 || ehdr->e_phnum == 0)
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return 0;
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if (ehdr->e_phentsize != sizeof(Elf32_Phdr))
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return 0;
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phdrs = (Elf32_Phdr *) (elfstart + ehdr->e_phoff);
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for (i = 0; i < ehdr->e_phnum; i++) {
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if (phdrs[i].p_type != PT_LOAD)
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continue;
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if (phdrs[i].p_filesz > phdrs[i].p_memsz)
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continue;
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if (!phdrs[i].p_filesz)
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continue;
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unsigned int p_paddr = phdrs[i].p_paddr;
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image = (unsigned char *) (elfstart + phdrs[i].p_offset);
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memcpy((void *) p_paddr, image, phdrs[i].p_filesz);
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DCFlushRange((void *) p_paddr, phdrs[i].p_filesz);
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if (phdrs[i].p_flags & PF_X)
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ICInvalidateRange((void *) p_paddr, phdrs[i].p_memsz);
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}
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//! clear BSS
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Elf32_Shdr *shdr = (Elf32_Shdr *) (elfstart + ehdr->e_shoff);
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for (i = 0; i < ehdr->e_shnum; i++) {
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const char *section_name = ((const char *) elfstart) + shdr[ehdr->e_shstrndx].sh_offset + shdr[i].sh_name;
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if (section_name[0] == '.' && section_name[1] == 'b' && section_name[2] == 's' && section_name[3] == 's') {
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memset((void *) shdr[i].sh_addr, 0, shdr[i].sh_size);
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DCFlushRange((void *) shdr[i].sh_addr, shdr[i].sh_size);
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} else if (section_name[0] == '.' && section_name[1] == 's' && section_name[2] == 'b' && section_name[3] == 's' && section_name[4] == 's') {
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memset((void *) shdr[i].sh_addr, 0, shdr[i].sh_size);
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DCFlushRange((void *) shdr[i].sh_addr, shdr[i].sh_size);
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}
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}
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return ehdr->e_entry;
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}
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void KernelWriteU32(uint32_t addr, uint32_t value) {
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ICInvalidateRange(&value, 4);
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DCFlushRange(&value, 4);
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uint32_t dst = (uint32_t) OSEffectiveToPhysical((uint32_t) addr);
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uint32_t src = (uint32_t) OSEffectiveToPhysical((uint32_t) &value);
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SC_0x25_KernelCopyData(dst, src, 4);
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DCFlushRange((void *) addr, 4);
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ICInvalidateRange((void *) addr, 4);
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}
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void InstallHBL() {
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kern_write((void *) (KERN_SYSCALL_TBL_1 + (0x25 * 4)), (unsigned int) SCKernelCopyData);
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kern_write((void *) (KERN_SYSCALL_TBL_2 + (0x25 * 4)), (unsigned int) SCKernelCopyData);
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kern_write((void *) (KERN_SYSCALL_TBL_3 + (0x25 * 4)), (unsigned int) SCKernelCopyData);
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kern_write((void *) (KERN_SYSCALL_TBL_4 + (0x25 * 4)), (unsigned int) SCKernelCopyData);
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kern_write((void *) (KERN_SYSCALL_TBL_5 + (0x25 * 4)), (unsigned int) SCKernelCopyData);
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kern_write((void *) (KERN_SYSCALL_TBL_1 + (0x36 * 4)), (unsigned int) KernelPatches);
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kern_write((void *) (KERN_SYSCALL_TBL_2 + (0x36 * 4)), (unsigned int) KernelPatches);
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kern_write((void *) (KERN_SYSCALL_TBL_3 + (0x36 * 4)), (unsigned int) KernelPatches);
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kern_write((void *) (KERN_SYSCALL_TBL_4 + (0x36 * 4)), (unsigned int) KernelPatches);
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kern_write((void *) (KERN_SYSCALL_TBL_5 + (0x36 * 4)), (unsigned int) KernelPatches);
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Syscall_0x36();
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InstallPatches();
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unsigned char *pElfBuffer = (unsigned char *) sd_loader_elf; // use this address as temporary to load the elf
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unsigned int mainEntryPoint = load_elf_image(pElfBuffer);
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if (mainEntryPoint == 0) {
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OSFatal("failed to load elf");
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}
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//! Install our entry point hook
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unsigned int repl_addr = ADDRESS_main_entry_hook;
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unsigned int jump_addr = mainEntryPoint & 0x03fffffc;
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unsigned int bufferU32 = 0x48000003 | jump_addr;
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KernelWriteU32(repl_addr, bufferU32);
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}
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/* ****************************************************************** */
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/* INSTALL PATCHES */
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/* All OS specific stuff is done here */
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/* ****************************************************************** */
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static void InstallPatches() {
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OsSpecifics osSpecificFunctions;
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memset(&osSpecificFunctions, 0, sizeof(OsSpecifics));
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unsigned int bufferU32;
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/* Pre-setup a few options to defined values */
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bufferU32 = 550;
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memcpy((void *) &OS_FIRMWARE, &bufferU32, sizeof(bufferU32));
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bufferU32 = 0xDEADC0DE;
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memcpy((void *) &MAIN_ENTRY_ADDR, &bufferU32, sizeof(bufferU32));
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memcpy((void *) &ELF_DATA_ADDR, &bufferU32, sizeof(bufferU32));
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bufferU32 = 0;
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memcpy((void *) &ELF_DATA_SIZE, &bufferU32, sizeof(bufferU32));
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memcpy((void *) &HBL_CHANNEL, &bufferU32, sizeof(bufferU32));
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osSpecificFunctions.addr_OSDynLoad_Acquire = (unsigned int) OSDynLoad_Acquire;
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osSpecificFunctions.addr_OSDynLoad_FindExport = (unsigned int) OSDynLoad_FindExport;
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osSpecificFunctions.addr_KernSyscallTbl1 = KERN_SYSCALL_TBL_1;
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osSpecificFunctions.addr_KernSyscallTbl2 = KERN_SYSCALL_TBL_2;
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osSpecificFunctions.addr_KernSyscallTbl3 = KERN_SYSCALL_TBL_3;
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osSpecificFunctions.addr_KernSyscallTbl4 = KERN_SYSCALL_TBL_4;
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osSpecificFunctions.addr_KernSyscallTbl5 = KERN_SYSCALL_TBL_5;
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osSpecificFunctions.LiWaitIopComplete = (int (*)(int, int *)) address_LiWaitIopComplete;
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osSpecificFunctions.LiWaitIopCompleteWithInterrupts = (int (*)(int, int *)) address_LiWaitIopCompleteWithInterrupts;
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osSpecificFunctions.addr_LiWaitOneChunk = address_LiWaitOneChunk;
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osSpecificFunctions.addr_PrepareTitle_hook = address_PrepareTitle_hook;
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osSpecificFunctions.addr_sgIsLoadingBuffer = address_sgIsLoadingBuffer;
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osSpecificFunctions.addr_gDynloadInitialized = address_gDynloadInitialized;
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osSpecificFunctions.orig_LiWaitOneChunkInstr = *(unsigned int *) address_LiWaitOneChunk;
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//! pointer to main entry point of a title
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osSpecificFunctions.addr_OSTitle_main_entry = ADDRESS_OSTitle_main_entry_ptr;
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memcpy((void *) OS_SPECIFICS, &osSpecificFunctions, sizeof(OsSpecifics));
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}
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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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@ -0,0 +1,3 @@
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#pragma once
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void InstallHBL();
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@ -0,0 +1,74 @@
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#ifndef __KERNEL_DEFS_H_
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#define __KERNEL_DEFS_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// original structure in the kernel that is originally 0x1270 long
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typedef struct {
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uint32_t version_cos_xml; // version tag from cos.xml
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uint64_t os_version; // os_version from app.xml
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uint64_t title_id; // title_id tag from app.xml
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uint32_t app_type; // app_type tag from app.xml
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uint32_t cmdFlags; // unknown tag as it is always 0 (might be cmdFlags from cos.xml but i am not sure)
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char rpx_name[0x1000]; // rpx name from cos.xml
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uint32_t unknown2; // 0x050B8304 in mii maker and system menu (looks a bit like permissions complex that got masked!?)
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uint32_t unknown3[63]; // those were all zeros, but its probably connected with unknown2
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uint32_t max_size; // max_size in cos.xml which defines the maximum amount of memory reserved for the app
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uint32_t avail_size; // avail_size or codegen_size in cos.xml (seems to mostly be 0?)
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uint32_t codegen_size; // codegen_size or avail_size in cos.xml (seems to mostly be 0?)
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uint32_t codegen_core; // codegen_core in cos.xml (seems to mostly be 1?)
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uint32_t max_codesize; // max_codesize in cos.xml
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uint32_t overlay_arena; // overlay_arena in cos.xml
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uint32_t unknown4[59]; // all zeros it seems
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uint32_t default_stack0_size; // not sure because always 0 but very likely
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uint32_t default_stack1_size; // not sure because always 0 but very likely
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uint32_t default_stack2_size; // not sure because always 0 but very likely
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uint32_t default_redzone0_size; // not sure because always 0 but very likely
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uint32_t default_redzone1_size; // not sure because always 0 but very likely
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uint32_t default_redzone2_size; // not sure because always 0 but very likely
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uint32_t exception_stack0_size; // from cos.xml, 0x1000 on mii maker
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uint32_t exception_stack1_size; // from cos.xml, 0x1000 on mii maker
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uint32_t exception_stack2_size; // from cos.xml, 0x1000 on mii maker
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uint32_t sdk_version; // from app.xml, 20909 (0x51AD) on mii maker
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uint32_t title_version; // from app.xml, 0x32 on mii maker
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/*
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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// the next part might be changing from title to title?! I don't think its important but nice to know maybe....
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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char mlc[4]; // string "mlc" on mii maker and sysmenu
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uint32_t unknown5[7]; // all zeros on mii maker and sysmenu
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uint32_t unknown6_one; // 0x01 on mii maker and sysmenu
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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char ACP[4]; // string "ACP" on mii maker and sysmenu
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uint32_t unknown7[15]; // all zeros on mii maker and sysmenu
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uint32_t unknown8_5; // 0x05 on mii maker and sysmenu
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uint32_t unknown9_zero; // 0x00 on mii maker and sysmenu
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uint32_t unknown10_ptr; // 0xFF23DD0C pointer on mii maker and sysmenu
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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char UVD[4]; // string "UVD" on mii maker and sysmenu
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uint32_t unknown11[15]; // all zeros on mii maker and sysmenu
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uint32_t unknown12_5; // 0x05 on mii maker and sysmenu
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uint32_t unknown13_zero; // 0x00 on mii maker and sysmenu
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uint32_t unknown14_ptr; // 0xFF23EFC8 pointer on mii maker and sysmenu
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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char SND[4]; // string "SND" on mii maker and sysmenu
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uint32_t unknown15[15]; // all zeros on mii maker and sysmenu
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uint32_t unknown16_5; // 0x05 on mii maker and sysmenu
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uint32_t unknown17_zero; // 0x00 on mii maker and sysmenu
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uint32_t unknown18_ptr; // 0xFF23F014 pointer on mii maker and sysmenu
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// ---------------------------------------------------------------------------------------------------------------------------------------------
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uint32_t unknown19; // 0x02 on miimaker, 0x0F on system menu
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*/
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// after that only zeros follow
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} __attribute__((packed)) CosAppXmlInfo;
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#ifdef __cplusplus
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}
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#endif
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#endif // __KERNEL_DEFS_H_
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@ -0,0 +1,211 @@
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#define BAT_SETUP_HOOK_ADDR 0xFFF1D624
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# not all of those NOP address are required for every firmware
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# mainly these should stop the kernel from removing our IBAT4 and DBAT5
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#define BAT_SET_NOP_ADDR_1 0xFFF06B6C
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#define BAT_SET_NOP_ADDR_2 0xFFF06BF8
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#define BAT_SET_NOP_ADDR_3 0xFFF003C8
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#define BAT_SET_NOP_ADDR_4 0xFFF003CC
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#define BAT_SET_NOP_ADDR_5 0xFFF1D70C
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#define BAT_SET_NOP_ADDR_6 0xFFF1D728
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#define BAT_SET_NOP_ADDR_7 0xFFF1D82C
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#define BAT_SET_NOP_ADDR_8 0xFFEE11C4
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#define BAT_SET_NOP_ADDR_9 0xFFEE11C8
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#define BAT_SETUP_HOOK_ENTRY 0x00800000
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#define BAT4U_VAL 0x008000FF
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#define BAT4L_VAL 0x30800012
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#define SET_R4_TO_ADDR(addr) \
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lis r3, addr@h ; \
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ori r3, r3, addr@l ; \
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stw r4, 0(r3) ; \
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dcbf 0, r3 ; \
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icbi 0, r3 ;
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||||
.globl Syscall_0x36
|
||||
Syscall_0x36:
|
||||
li r0, 0x3600
|
||||
sc
|
||||
blr
|
||||
|
||||
|
||||
.global SCKernelCopyData
|
||||
SCKernelCopyData:
|
||||
// Disable data address translation
|
||||
mfmsr %r6
|
||||
li %r7, 0x10
|
||||
andc %r6, %r6, %r7
|
||||
mtmsr %r6
|
||||
|
||||
// Copy data
|
||||
addi %r3, %r3, -1
|
||||
addi %r4, %r4, -1
|
||||
mtctr %r5
|
||||
SCKernelCopyData_loop:
|
||||
lbzu %r5, 1(%r4)
|
||||
stbu %r5, 1(%r3)
|
||||
bdnz SCKernelCopyData_loop
|
||||
|
||||
// Enable data address translation
|
||||
ori %r6, %r6, 0x10
|
||||
mtmsr %r6
|
||||
blr
|
||||
|
||||
.global SC_0x25_KernelCopyData
|
||||
SC_0x25_KernelCopyData:
|
||||
li %r0, 0x2500
|
||||
sc
|
||||
blr
|
||||
|
||||
.globl KernelPatches
|
||||
KernelPatches:
|
||||
# store the old DBAT0
|
||||
mfdbatu r5, 0
|
||||
mfdbatl r6, 0
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# setup DBAT0 for access to kernel code memory
|
||||
lis r3, 0xFFF0
|
||||
ori r3, r3, 0x0002
|
||||
mtdbatu 0, r3
|
||||
lis r3, 0xFFF0
|
||||
ori r3, r3, 0x0032
|
||||
mtdbatl 0, r3
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# SaveAndResetDataBATs_And_SRs hook setup, but could be any BAT function though
|
||||
# just chosen because its simple
|
||||
lis r3, BAT_SETUP_HOOK_ADDR@h
|
||||
ori r3, r3, BAT_SETUP_HOOK_ADDR@l
|
||||
|
||||
# make the kernel setup our section in IBAT4 and
|
||||
# jump to our function to restore the replaced instructions
|
||||
lis r4, 0x3ce0 # lis r7, BAT4L_VAL@h
|
||||
ori r4, r4, BAT4L_VAL@h
|
||||
stw r4, 0x00(r3)
|
||||
lis r4, 0x60e7 # ori r7, r7, BAT4L_VAL@l
|
||||
ori r4, r4, BAT4L_VAL@l
|
||||
stw r4, 0x04(r3)
|
||||
lis r4, 0x7cf1 # mtspr 561, r7
|
||||
ori r4, r4, 0x8ba6
|
||||
stw r4, 0x08(r3)
|
||||
lis r4, 0x3ce0 # lis r7, BAT4U_VAL@h
|
||||
ori r4, r4, BAT4U_VAL@h
|
||||
stw r4, 0x0C(r3)
|
||||
lis r4, 0x60e7 # ori r7, r7, BAT4U_VAL@l
|
||||
ori r4, r4, BAT4U_VAL@l
|
||||
stw r4, 0x10(r3)
|
||||
lis r4, 0x7cf0 # mtspr 560, r7
|
||||
ori r4, r4, 0x8ba6
|
||||
stw r4, 0x14(r3)
|
||||
lis r4, 0x7c00 # eieio
|
||||
ori r4, r4, 0x06ac
|
||||
stw r4, 0x18(r3)
|
||||
lis r4, 0x4c00 # isync
|
||||
ori r4, r4, 0x012c
|
||||
stw r4, 0x1C(r3)
|
||||
lis r4, 0x7ce8 # mflr r7
|
||||
ori r4, r4, 0x02a6
|
||||
stw r4, 0x20(r3)
|
||||
lis r4, (BAT_SETUP_HOOK_ENTRY | 0x48000003)@h # bla BAT_SETUP_HOOK_ENTRY
|
||||
ori r4, r4, (BAT_SETUP_HOOK_ENTRY | 0x48000003)@l
|
||||
stw r4, 0x24(r3)
|
||||
|
||||
# flush and invalidate the replaced instructions
|
||||
lis r3, (BAT_SETUP_HOOK_ADDR & ~31)@h
|
||||
ori r3, r3, (BAT_SETUP_HOOK_ADDR & ~31)@l
|
||||
dcbf 0, r3
|
||||
icbi 0, r3
|
||||
lis r3, ((BAT_SETUP_HOOK_ADDR + 0x20) & ~31)@h
|
||||
ori r3, r3, ((BAT_SETUP_HOOK_ADDR + 0x20) & ~31)@l
|
||||
dcbf 0, r3
|
||||
icbi 0, r3
|
||||
sync
|
||||
|
||||
# setup IBAT4 for core 1 at this position (not really required but wont hurt)
|
||||
# IBATL 4
|
||||
lis r3, BAT4L_VAL@h
|
||||
ori r3, r3, BAT4L_VAL@l
|
||||
mtspr 561, r3
|
||||
|
||||
# IBATU 4
|
||||
lis r3, BAT4U_VAL@h
|
||||
ori r3, r3, BAT4U_VAL@l
|
||||
mtspr 560, r3
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# write "nop" to some positions
|
||||
lis r4, 0x6000
|
||||
# nop on IBATU 4 and DBAT 5 set/reset
|
||||
#ifdef BAT_SET_NOP_ADDR_1
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_1)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_2
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_2)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_3
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_3)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_4
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_4)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_5
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_5)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_6
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_6)
|
||||
#endif
|
||||
#ifdef BAT_SET_NOP_ADDR_7
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_7)
|
||||
#endif
|
||||
|
||||
#if (defined(BAT_SET_NOP_ADDR_8) && defined(BAT_SET_NOP_ADDR_9))
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# setup DBAT0 for access to kernel code memory
|
||||
lis r3, 0xFFEE
|
||||
ori r3, r3, 0x0002
|
||||
mtdbatu 0, r3
|
||||
lis r3, 0xFFEE
|
||||
ori r3, r3, 0x0032
|
||||
mtdbatl 0, r3
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# write "nop" to some positions
|
||||
lis r4, 0x6000
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_8)
|
||||
SET_R4_TO_ADDR(BAT_SET_NOP_ADDR_9)
|
||||
#endif
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
# restore DBAT 0 and return from interrupt
|
||||
mtdbatu 0, r5
|
||||
mtdbatl 0, r6
|
||||
|
||||
# memory barrier
|
||||
eieio
|
||||
isync
|
||||
|
||||
blr
|
||||
|
||||
|
|
@ -1,69 +1,7 @@
|
|||
#include <string.h>
|
||||
#include <coreinit/title.h>
|
||||
#include <sysapp/title.h>
|
||||
#include <sysapp/launch.h>
|
||||
#include <coreinit/ios.h>
|
||||
#include <coreinit/cache.h>
|
||||
#include "../homebrew_launcher_installer/src/elf_abi.h"
|
||||
#include "payload_elf.h"
|
||||
|
||||
static unsigned int load_elf_image (const uint8_t* elfstart) {
|
||||
Elf32_Ehdr *ehdr;
|
||||
Elf32_Phdr *phdrs;
|
||||
unsigned char *image;
|
||||
int i;
|
||||
|
||||
ehdr = (Elf32_Ehdr *) elfstart;
|
||||
|
||||
if(ehdr->e_phoff == 0 || ehdr->e_phnum == 0)
|
||||
return 0;
|
||||
|
||||
if(ehdr->e_phentsize != sizeof(Elf32_Phdr))
|
||||
return 0;
|
||||
|
||||
phdrs = (Elf32_Phdr*)(elfstart + ehdr->e_phoff);
|
||||
|
||||
for(i = 0; i < ehdr->e_phnum; i++) {
|
||||
if(phdrs[i].p_type != PT_LOAD)
|
||||
continue;
|
||||
|
||||
if(phdrs[i].p_filesz > phdrs[i].p_memsz)
|
||||
continue;
|
||||
|
||||
if(!phdrs[i].p_filesz)
|
||||
continue;
|
||||
|
||||
unsigned int p_paddr = phdrs[i].p_paddr;
|
||||
image = (unsigned char *) (elfstart + phdrs[i].p_offset);
|
||||
|
||||
memcpy ((void *) p_paddr, image, phdrs[i].p_filesz);
|
||||
DCFlushRange((void*)p_paddr, phdrs[i].p_filesz);
|
||||
|
||||
if(phdrs[i].p_flags & PF_X)
|
||||
ICInvalidateRange ((void *) p_paddr, phdrs[i].p_memsz);
|
||||
}
|
||||
|
||||
//! clear BSS
|
||||
Elf32_Shdr *shdr = (Elf32_Shdr *) (elfstart + ehdr->e_shoff);
|
||||
for(i = 0; i < ehdr->e_shnum; i++) {
|
||||
const char *section_name = ((const char*)elfstart) + shdr[ehdr->e_shstrndx].sh_offset + shdr[i].sh_name;
|
||||
if(section_name[0] == '.' && section_name[1] == 'b' && section_name[2] == 's' && section_name[3] == 's') {
|
||||
memset((void*)shdr[i].sh_addr, 0, shdr[i].sh_size);
|
||||
DCFlushRange((void*)shdr[i].sh_addr, shdr[i].sh_size);
|
||||
} else if(section_name[0] == '.' && section_name[1] == 's' && section_name[2] == 'b' && section_name[3] == 's' && section_name[4] == 's') {
|
||||
memset((void*)shdr[i].sh_addr, 0, shdr[i].sh_size);
|
||||
DCFlushRange((void*)shdr[i].sh_addr, shdr[i].sh_size);
|
||||
}
|
||||
}
|
||||
|
||||
return ehdr->e_entry;
|
||||
}
|
||||
#include "hbl_install.h"
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
uint32_t res = load_elf_image(payload_elf);
|
||||
if(res != 0) {
|
||||
((int (*)(int, char **)) res)(0, nullptr);
|
||||
}
|
||||
InstallHBL();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue