mirror of
https://github.com/wiiu-env/WiiUPluginLoaderBackend.git
synced 2024-11-25 06:06:53 +01:00
Use libkernel for a KernelCopy instead register own kernel functions.
This commit is contained in:
Maschell
parent
9ee8085a64
commit
13e5d854d1
3
Makefile
3
Makefile
@ -24,7 +24,6 @@ TARGET := PluginBackend
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BUILD := build
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SOURCES := source \
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source/elfio \
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source/kernel \
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source/patcher \
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source/plugin \
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source/utils
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@ -44,7 +43,7 @@ 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 -lwups
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LIBS := -lwums -lwut -lwups -lkernel
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#-------------------------------------------------------------------------------
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# list of directories containing libraries, this must be the top level
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@ -29,6 +29,7 @@ DEVKITPPC=/opt/devkitpro/devkitPPC
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```
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Also make sure to install [wut](https://github.com/decaf-emu/wut), [WiiUPluginSystem](https://github.com/wiiu-env/WiiUPluginSystem) and the [WiiUModuleSystem](https://github.com/wiiu-env/WiiUModuleSystem).
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It requires the [KernelModule](https://github.com/wiiu-env/KernelModule) to be running at the same time and it's linking aginst [libkernel](https://github.com/wiiu-env/libkernel).
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# Credits
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- Maschell
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@ -1,40 +0,0 @@
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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 KernelCopyData
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KernelCopyData:
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li %r0, 0x2500
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sc
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blr
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.globl SC0x36_KernelReadSRs
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SC0x36_KernelReadSRs:
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li %r0, 0x3600
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sc
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blr
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.globl SC0x0A_KernelWriteSRs
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SC0x0A_KernelWriteSRs:
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li %r0, 0x0A00
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sc
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blr
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@ -1,36 +0,0 @@
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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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#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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typedef struct _sr_table_t {
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uint32_t value[16];
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uint32_t sdr1;
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} sr_table_t;
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typedef struct _bat_t {
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uint32_t h;
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uint32_t l;
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} bat_t;
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typedef struct _bat_table_t {
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bat_t bat[8];
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} bat_table_t;
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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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@ -1,92 +0,0 @@
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#include "kernel_utils.h"
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#include "kernel_defs.h"
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#include <coreinit/cache.h>
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#include <coreinit/memorymap.h>
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extern void SCKernelCopyData(uint32_t dst, uint32_t src, uint32_t len);
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void KernelWrite(uint32_t addr, const void *data, uint32_t length) {
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uint32_t dst = (uint32_t) OSEffectiveToPhysical(addr);
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uint32_t src = (uint32_t) OSEffectiveToPhysical((uint32_t) data);
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KernelCopyData(dst, src, length);
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DCFlushRange((void *) addr, length);
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ICInvalidateRange((void *) addr, length);
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}
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void KernelWriteU32(uint32_t addr, uint32_t value) {
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uint32_t dst = (uint32_t) OSEffectiveToPhysical(addr);
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uint32_t src = (uint32_t) OSEffectiveToPhysical((uint32_t) &value);
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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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/* 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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//DEBUG_FUNCTION_LINE("Patching Syscall 0x%02X\n",index);
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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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ucSyscallsSetupRequired = 0;
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PatchSyscall(0x25, (uint32_t) SCKernelCopyData);
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}
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@ -1,34 +0,0 @@
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#ifndef __KERNEL_UTILS_H_
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#define __KERNEL_UTILS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "kernel_defs.h"
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extern void KernelCopyData(uint32_t dst, uint32_t src, uint32_t len);
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void kern_write(void *addr, uint32_t value);
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uint32_t kern_read(const void *addr);
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void SC0x0A_KernelWriteSRs(sr_table_t *table);
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void SC0x36_KernelReadSRs(sr_table_t *table);
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void KernelReadPTE(uint32_t addr, int32_t length);
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void KernelWritePTE(uint32_t addr, int32_t length);
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void KernelWrite(uint32_t addr, const void *data, uint32_t length);
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void KernelWriteU32(uint32_t addr, uint32_t value);
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void kernelInitialize();
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#ifdef __cplusplus
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}
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#endif
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#endif // __KERNEL_UTILS_H_
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@ -27,10 +27,9 @@
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#include "function_patcher.h"
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#include <utils/logger.h>
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#include <utils/utils.h>
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#include <kernel/kernel_defs.h>
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#include <kernel/kernel_utils.h>
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#include <coreinit/memorymap.h>
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#include <coreinit/cache.h>
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#include <kernel/kernel.h>
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#include <whb/log.h>
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#include <coreinit/dynload.h>
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@ -26,7 +26,7 @@
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#include <coreinit/dynload.h>
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#include <coreinit/debug.h>
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#include "kernel/kernel_utils.h"
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#include <kernel/kernel.h>
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#include "function_patcher.h"
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#include "logger.h"
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