LowLevel/Luma3DS-3GX
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Merge master into developer

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This commit is contained in:
Aurora
2016-09-03 15:41:45 +02:00
parent d412711868 9b4b4ec543
commit 6afc8b3b5c
5 changed files with 34 additions and 37 deletions
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10
source/emunand.c
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@@ -63,14 +63,14 @@ static inline void *getFreeK9Space(u8 *pos, u32 size)
const u8 pattern[] = {0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00};
//Looking for the last free space before Process9
return memsearch(pos + 0x13500, pattern, size - 0x13500, 6) + 0x455;
return memsearch(pos + 0x13500, pattern, size - 0x13500, sizeof(pattern)) + 0x455;
}
static inline u32 getSdmmc(u8 *pos, u32 size)
{
//Look for struct code
const u8 pattern[] = {0x21, 0x20, 0x18, 0x20};
const u8 *off = memsearch(pos, pattern, size, 4);
const u8 *off = memsearch(pos, pattern, size, sizeof(pattern));
return *(u32 *)(off + 9) + *(u32 *)(off + 0xD);
}
@@ -82,8 +82,8 @@ static inline void patchNandRw(u8 *pos, u32 size, u32 branchOffset)
//Look for read/write code
const u8 pattern[] = {0x1E, 0x00, 0xC8, 0x05};
u16 *readOffset = (u16 *)memsearch(pos, pattern, size, 4) - 3,
*writeOffset = (u16 *)memsearch((u8 *)(readOffset + 5), pattern, 0x100, 4) - 3;
u16 *readOffset = (u16 *)memsearch(pos, pattern, size, sizeof(pattern)) - 3,
*writeOffset = (u16 *)memsearch((u8 *)(readOffset + 5), pattern, 0x100, sizeof(pattern)) - 3;
*readOffset = nandRedir[0];
readOffset[1] = nandRedir[1];
@@ -98,7 +98,7 @@ static inline void patchMpu(u8 *pos, u32 size)
//Look for MPU pattern
const u8 pattern[] = {0x03, 0x00, 0x24, 0x00};
u32 *off = (u32 *)memsearch(pos, pattern, size, 4);
u32 *off = (u32 *)memsearch(pos, pattern, size, sizeof(pattern));
off[0] = 0x00360003;
off[6] = 0x00200603;

1
source/exceptions.c
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@@ -26,7 +26,6 @@
#include "memory.h"
#include "screen.h"
#include "draw.h"
#include "i2c.h"
#include "utils.h"
#include "../build/arm9_exceptions.h"
#include "../build/arm11_exceptions.h"

5
source/firm.c
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@@ -305,9 +305,8 @@ static inline void patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32
//Find Kernel11 SVC table and free space locations
u8 *freeK11Space;
u32 *arm11SvcHandler,
*arm11ExceptionsPage;
u32 *arm11SvcTable = getKernel11Info(arm11Section1, section[1].size, &freeK11Space, &arm11SvcHandler, &arm11ExceptionsPage);
*arm11ExceptionsPage,
*arm11SvcTable = getKernel11Info(arm11Section1, section[1].size, &freeK11Space, &arm11SvcHandler, &arm11ExceptionsPage);
//Apply signature patches
patchSignatureChecks(process9Offset, process9Size);

34
source/patches.c
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@@ -43,7 +43,7 @@ u32 *getKernel11Info(u8 *pos, u32 size, u8 **freeK11Space, u32 **arm11SvcHandler
{
const u8 pattern[] = {0x00, 0xB0, 0x9C, 0xE5};
*arm11ExceptionsPage = (u32 *)memsearch(pos, pattern, size, 4) - 0xB;
*arm11ExceptionsPage = (u32 *)memsearch(pos, pattern, size, sizeof(pattern)) - 0xB;
u32 svcOffset = (-(((*arm11ExceptionsPage)[2] & 0xFFFFFF) << 2) & (0xFFFFFF << 2)) - 8; //Branch offset + 8 for prefetch
u32 *arm11SvcTable = (u32 *)(pos + *(u32 *)(pos + 0xFFFF0008 - svcOffset - 0xFFF00000 + 8) - 0xFFF00000); //SVC handler address
*arm11SvcHandler = arm11SvcTable;
@@ -51,7 +51,7 @@ u32 *getKernel11Info(u8 *pos, u32 size, u8 **freeK11Space, u32 **arm11SvcHandler
const u8 pattern2[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
*freeK11Space = memsearch(pos, pattern2, size, 5) + 1;
*freeK11Space = memsearch(pos, pattern2, size, sizeof(pattern2)) + 1;
return arm11SvcTable;
}
@@ -64,8 +64,8 @@ void patchSignatureChecks(u8 *pos, u32 size)
const u8 pattern[] = {0xC0, 0x1C, 0x76, 0xE7},
pattern2[] = {0xB5, 0x22, 0x4D, 0x0C};
u16 *off = (u16 *)memsearch(pos, pattern, size, 4),
*off2 = (u16 *)(memsearch(pos, pattern2, size, 4) - 1);
u16 *off = (u16 *)memsearch(pos, pattern, size, sizeof(pattern)),
*off2 = (u16 *)(memsearch(pos, pattern2, size, sizeof(pattern2)) - 1);
*off = sigPatch[0];
off2[0] = sigPatch[0];
@@ -77,7 +77,7 @@ void patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr)
//Look for firmlaunch code
const u8 pattern[] = {0xE2, 0x20, 0x20, 0x90};
u8 *off = memsearch(pos, pattern, size, 4) - 0x13;
u8 *off = memsearch(pos, pattern, size, sizeof(pattern)) - 0x13;
//Firmlaunch function offset - offset in BLX opcode (A4-16 - ARM DDI 0100E) + 1
u32 fOpenOffset = (u32)(off + 9 - (-((*(u32 *)off & 0x00FFFFFF) << 2) & (0xFFFFFF << 2)) - pos + process9MemAddr);
@@ -96,7 +96,7 @@ void patchFirmWrites(u8 *pos, u32 size)
u8 *const off1 = memsearch(pos, "exe:", size, 4);
const u8 pattern[] = {0x00, 0x28, 0x01, 0xDA};
u16 *off2 = (u16 *)memsearch(off1 - 0x100, pattern, 0x100, 4);
u16 *off2 = (u16 *)memsearch(off1 - 0x100, pattern, 0x100, sizeof(pattern));
off2[0] = 0x2000;
off2[1] = 0x46C0;
@@ -107,7 +107,7 @@ void patchOldFirmWrites(u8 *pos, u32 size)
//Look for FIRM writing code
const u8 pattern[] = {0x04, 0x1E, 0x1D, 0xDB};
u16 *off = (u16 *)memsearch(pos, pattern, size, 4);
u16 *off = (u16 *)memsearch(pos, pattern, size, sizeof(pattern));
off[0] = 0x2400;
off[1] = 0xE01D;
@@ -167,7 +167,7 @@ void patchTitleInstallMinVersionCheck(u8 *pos, u32 size)
{
const u8 pattern[] = {0x0A, 0x81, 0x42, 0x02};
u8 *off = memsearch(pos, pattern, size, 4);
u8 *off = memsearch(pos, pattern, size, sizeof(pattern));
if(off != NULL) off[4] = 0xE0;
}
@@ -237,7 +237,7 @@ void patchArm9ExceptionHandlersInstall(u8 *pos, u32 size)
{
const u8 pattern[] = {0x03, 0xA0, 0xE3, 0x18};
u32* off = (u32 *)(memsearch(pos, pattern, size, 4) + 0x13);
u32* off = (u32 *)(memsearch(pos, pattern, size, sizeof(pattern)) + 0x13);
for(u32 r0 = 0x08000000; *off != 0xE3A01040; off++) //Until mov r1, #0x40
{
@@ -265,11 +265,11 @@ u32 getInfoForArm11ExceptionHandlers(u8 *pos, u32 size, u32 *codeSetOffset)
const u8 pattern[] = {0xE3, 0xDC, 0x05, 0xC0}, //Get TitleID from CodeSet
pattern2[] = {0xE1, 0x0F, 0x00, 0xBD}; //Call exception dispatcher
u32 *loadCodeSet = (u32 *)(memsearch(pos, pattern, size, 4) - 0xB);
u32 *loadCodeSet = (u32 *)(memsearch(pos, pattern, size, sizeof(pattern)) - 0xB);
*codeSetOffset = *loadCodeSet & 0xFFF;
return *(u32 *)(memsearch(pos, pattern2, size, 4) + 0xD);
return *(u32 *)(memsearch(pos, pattern2, size, sizeof(pattern2)) + 0xD);
}
void patchSvcBreak9(u8 *pos, u32 size, u32 kernel9Address)
@@ -280,7 +280,7 @@ void patchSvcBreak9(u8 *pos, u32 size, u32 kernel9Address)
//Look for the svc handler
const u8 pattern[] = {0x00, 0xE0, 0x4F, 0xE1}; //mrs lr, spsr
u32 *arm9SvcTable = (u32 *)memsearch(pos, pattern, size, 4);
u32 *arm9SvcTable = (u32 *)memsearch(pos, pattern, size, sizeof(pattern));
while(*arm9SvcTable) arm9SvcTable++; //Look for SVC0 (NULL)
u32 *addr = (u32 *)(pos + arm9SvcTable[0x3C] - kernel9Address);
@@ -298,7 +298,7 @@ void patchKernel9Panic(u8 *pos, u32 size)
{
const u8 pattern[] = {0xDF, 0xFF, 0xEA, 0x04};
u32 *off = (u32 *)(memsearch(pos, pattern, size, 4) - 0x11);
u32 *off = (u32 *)(memsearch(pos, pattern, size, sizeof(pattern)) - 0x11);
*off = 0xE12FFF7E;
}
@@ -306,7 +306,7 @@ void patchKernel11Panic(u8 *pos, u32 size)
{
const u8 pattern[] = {0x02, 0x0B, 0x44, 0xE2};
u32 *off = (u32 *)memsearch(pos, pattern, size, 4);
u32 *off = (u32 *)memsearch(pos, pattern, size, sizeof(pattern));
*off = 0xE12FFF7E;
}
@@ -314,7 +314,7 @@ void patchP9AccessChecks(u8 *pos, u32 size)
{
const u8 pattern[] = {0xE0, 0x00, 0x40, 0x39};
u16 *off = (u16 *)memsearch(pos, pattern, size, 4) - 7;
u16 *off = (u16 *)memsearch(pos, pattern, size, sizeof(pattern)) - 7;
off[0] = 0x2001; //mov r0, #1
off[1] = 0x4770; //bx lr
@@ -338,7 +338,7 @@ void patchK11ModuleChecks(u8 *pos, u32 size, u8 **freeK11Space)
//Look for the code that decompresses the .code section of the builtin modules
const u8 pattern[] = {0xE5, 0x48, 0x00, 0x9D};
u32 *off = (u32 *)(memsearch(pos, pattern, size, 4) - 0xB);
u32 *off = (u32 *)(memsearch(pos, pattern, size, sizeof(pattern)) - 0xB);
//Inject a jump (BL) instruction to our code at the offset we found
*off = 0xEB000000 | (((((u32)*freeK11Space) - ((u32)off + 8)) >> 2) & 0xFFFFFF);
@@ -351,7 +351,7 @@ void patchUnitInfoValueSet(u8 *pos, u32 size)
//Look for UNITINFO value being set during kernel sync
const u8 pattern[] = {0x01, 0x10, 0xA0, 0x13};
u8 *off = memsearch(pos, pattern, size, 4);
u8 *off = memsearch(pos, pattern, size, sizeof(pattern));
off[0] = isDevUnit ? 0 : 1;
off[3] = 0xE3;