LowLevel/Luma3DS-3GX
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We don't really need two sets of blank spaces

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Aurora 2016-10-15 00:32:00 +02:00
parent fc994285f9
commit b58cbd228c
6 changed files with 33 additions and 27 deletions
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34
patches/reboot.s
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@ -26,11 +26,10 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
cmp r0, r2
bne pxi_wait_recv
adr r1, sd_fname
open_payload:
; Open file
add r0, r7, #8
adr r1, fname
mov r2, #1
ldr r6, [fopen]
orr r6, 1
@ -40,7 +39,10 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
ldr r2, =sd_notmounted
cmp r0, r2
bne svcBreak
adr r1, nand_fname
adr r0, fname
adr r1, nand_mount
mov r2, #8
bl memcpy16
b open_payload
read_payload:
@ -54,14 +56,10 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
blx r6
; Copy the low TID (in UTF-16) of the wanted firm to the 5th byte of the payload
add r0, r8, 0x1A
add r1, r0, #0x10
ldr r2, =payload_addr + 4
copy_TID_low:
ldrh r3, [r0], #2
strh r3, [r2], #2
cmp r0, r1
blo copy_TID_low
ldr r0, =payload_addr + 4
add r1, r8, 0x1A
mov r2, #0x10
bl memcpy16
; Set kernel state
mov r0, #0
@ -79,6 +77,15 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
die:
b die
memcpy16:
add r2, r0, r2
copy_loop:
ldrh r3, [r1], #2
strh r3, [r0], #2
cmp r0, r2
blo copy_loop
bx lr
svcBreak:
swi 0x3C
b die
@ -86,11 +93,10 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
bytes_read: .word 0
fopen: .ascii "OPEN"
.pool
sd_fname: .dcw "sdmc:/arm9loaderhax.bin"
fname: .dcw "sdmc:/arm9loaderhax.bin"
.word 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
.pool
nand_fname: .dcw "nand:/arm9loaderhax.bin"
.word 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
nand_mount: .dcw "nand"
.align 4
kernelcode_start:

8
source/firm.c
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@ -36,7 +36,7 @@
static Firm *firm = (Firm *)0x24000000;
u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStorage, bool isSdMode)
u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStorage)
{
const char *firmwareFiles[] = {
"firmware.bin",
@ -51,8 +51,6 @@ u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStora
"cetk_safe"
};
if(isSdMode && !mountFs(false, false)) error("Failed to mount CTRNAND.");
//Load FIRM from CTRNAND
u32 firmVersion = firmRead(firm, (u32)*firmType);
@ -109,7 +107,7 @@ u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStora
return firmVersion;
}
u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, bool isA9lhInstalled, bool isSdMode, u32 devMode)
u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, bool isA9lhInstalled, u32 devMode)
{
u8 *arm9Section = (u8 *)firm + firm->section[2].offset,
*arm11Section1 = (u8 *)firm + firm->section[1].offset;
@ -148,7 +146,7 @@ u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, boo
else if(isA9lhInstalled) ret += patchFirmWrites(process9Offset, process9Size);
//Apply firmlaunch patches
ret += patchFirmlaunches(process9Offset, process9Size, process9MemAddr, isSdMode);
ret += patchFirmlaunches(process9Offset, process9Size, process9MemAddr);
//11.0 FIRM patches
if(firmVersion >= (ISN3DS ? 0x21 : 0x52))

4
source/firm.h
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@ -24,8 +24,8 @@
#include "types.h"
u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStorage, bool isSdMode);
u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, bool isA9lhInstalled, bool isSdMode, u32 devMode);
u32 loadFirm(FirmwareType *firmType, FirmwareSource nandType, bool loadFromStorage);
u32 patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32 emuHeader, bool isA9lhInstalled, u32 devMode);
u32 patchTwlFirm(u32 firmVersion, u32 devMode);
u32 patchAgbFirm(u32 devMode);
u32 patch1x2xNativeAndSafeFirm(u32 devMode);

6
source/main.c
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@ -225,8 +225,10 @@ void main(void)
writeConfig(needConfig, configTemp);
}
if(isSdMode && !mountFs(false, false)) error("Failed to mount CTRNAND.");
bool loadFromStorage = CONFIG(LOADEXTFIRMSANDMODULES);
u32 firmVersion = loadFirm(&firmType, firmSource, loadFromStorage, isSdMode);
u32 firmVersion = loadFirm(&firmType, firmSource, loadFromStorage);
u32 devMode = MULTICONFIG(DEVOPTIONS);
@ -234,7 +236,7 @@ void main(void)
switch(firmType)
{
case NATIVE_FIRM:
res = patchNativeFirm(firmVersion, nandType, emuHeader, isA9lhInstalled, isSdMode, devMode);
res = patchNativeFirm(firmVersion, nandType, emuHeader, isA9lhInstalled, devMode);
break;
case SAFE_FIRM:
case NATIVE_FIRM1X2X:

4
source/patches.c
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@ -101,7 +101,7 @@ u32 patchSignatureChecks(u8 *pos, u32 size)
return ret;
}
u32 patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr, bool isSdMode)
u32 patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr)
{
//Look for firmlaunch code
const u8 pattern[] = {0xE2, 0x20, 0x20, 0x90};
@ -145,7 +145,7 @@ u32 patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr, bool isSdMode)
for(u32 i = 0; i < pathSize; i++)
finalPath[i] = (u16)path[i];
u8 *pos_path = memsearch(off, isSdMode ? u"sd" : u"na", reboot_bin_size, 4) + 0xA;
u8 *pos_path = memsearch(off, u"sd", reboot_bin_size, 4) + 0xA;
memcpy(pos_path, finalPath, pathSize * 2);
}
}

2
source/patches.h
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@ -34,7 +34,7 @@ u8 *getProcess9Info(u8 *pos, u32 size, u32 *process9Size, u32 *process9MemAddr);
u32 *getKernel11Info(u8 *pos, u32 size, u32 *baseK11VA, u8 **freeK11Space, u32 **arm11SvcHandler, u32 **arm11ExceptionsPage);
u32 patchSignatureChecks(u8 *pos, u32 size);
u32 patchTitleInstallMinVersionChecks(u8 *pos, u32 size, u32 firmVersion);
u32 patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr, bool isSdMode);
u32 patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr);
u32 patchFirmWrites(u8 *pos, u32 size);
u32 patchOldFirmWrites(u8 *pos, u32 size);
u32 reimplementSvcBackdoor(u8 *pos, u32 *arm11SvcTable, u32 baseK11VA, u8 **freeK11Space);