Implement svcGetCFWInfo in place of svc 0x2e (which is stubbed). Luma3DS now boots ca. 1.5s faster
Fix bug in pin.c where the START button wasn't recognized as well.
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4f8c66b2b7
commit
50a2424001
9
Makefile
9
Makefile
@ -13,6 +13,7 @@ OC := arm-none-eabi-objcopy
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name := Luma3DS
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revision := $(shell git describe --tags --match v[0-9]* --abbrev=8 | sed 's/-[0-9]*-g/-/i')
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commit := $(shell git rev-parse --short=8 HEAD)
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dir_source := source
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dir_patches := patches
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@ -32,7 +33,7 @@ objects = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
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$(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
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$(call rwildcard, $(dir_source), *.s *.c)))
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bundled = $(dir_build)/rebootpatch.h $(dir_build)/emunandpatch.h $(dir_build)/injector.h $(dir_build)/loader.h
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bundled = $(dir_build)/rebootpatch.h $(dir_build)/emunandpatch.h $(dir_build)/svcGetCFWInfopatch.h $(dir_build)/injector.h $(dir_build)/loader.h
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.PHONY: all
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all: launcher a9lh ninjhax
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@ -91,6 +92,11 @@ $(dir_build)/rebootpatch.h: $(dir_patches)/reboot.s
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@armips $<
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@bin2c -o $@ -n reboot $(@D)/reboot.bin
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$(dir_build)/svcGetCFWInfopatch.h: $(dir_patches)/svcGetCFWInfo.s
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@mkdir -p "$(@D)"
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@armips $<
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@bin2c -o $@ -n svcGetCFWInfo $(@D)/svcGetCFWInfo.bin
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$(dir_build)/injector.h: $(dir_injector)/Makefile
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@mkdir -p "$(@D)"
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@$(MAKE) -C $(dir_injector)
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@ -102,6 +108,7 @@ $(dir_build)/loader.h: $(dir_loader)/Makefile
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$(dir_build)/memory.o: CFLAGS += -O3
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$(dir_build)/config.o: CFLAGS += -DCONFIG_TITLE="\"$(name) $(revision) configuration\""
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$(dir_build)/patches.o: CFLAGS += -DREVISION=\"$(revision)\" -DCOMMIT_HASH="0x$(commit)"
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$(dir_build)/%.o: $(dir_source)/%.c $(bundled)
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@mkdir -p "$(@D)"
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@ -3,11 +3,39 @@
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#include "patcher.h"
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#include "ifile.h"
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typedef struct __attribute__((packed))
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{
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char magic[4];
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u8 versionMajor;
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u8 versionMinor;
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u8 versionBuild;
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u8 flags; /* bit 0: dev branch; bit 1: is release */
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u32 commitHash;
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u32 config;
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} CFWInfo;
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CFWInfo info = {0};
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int __attribute__((naked)) svcGetCFWInfo(CFWInfo __attribute__((unused)) *out)
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{
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__asm__ volatile("svc 0x2E; bx lr");
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}
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static void loadCFWInfo(void)
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{
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static bool infoLoaded = false;
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if(!infoLoaded) svcGetCFWInfo(&info);
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infoLoaded = true;
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}
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#ifndef PATH_MAX
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#define PATH_MAX 255
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#define CONFIG(a) (((loadConfig() >> (a + 16)) & 1) != 0)
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#define MULTICONFIG(a) ((loadConfig() >> (a * 2 + 6)) & 3)
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#define BOOTCONFIG(a, b) ((loadConfig() >> a) & b)
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#define CONFIG(a) (((info.config >> (a + 16)) & 1) != 0)
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#define MULTICONFIG(a) ((info.config >> (a * 2 + 6)) & 3)
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#define BOOTCONFIG(a, b) ((info.config >> a) & b)
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#endif
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static int memcmp(const void *buf1, const void *buf2, u32 size)
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@ -107,24 +135,6 @@ static bool secureInfoExists(void)
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return exists;
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}
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static u32 loadConfig(void)
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{
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static u32 config = 0;
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if(!config)
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{
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IFile file;
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if(R_SUCCEEDED(fileOpen(&file, ARCHIVE_SDMC, "/luma/config.bin", FS_OPEN_READ)))
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{
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u64 total;
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if(R_SUCCEEDED(IFile_Read(&file, &total, &config, 4))) config |= 1 << 4;
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IFile_Close(&file);
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}
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}
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return config;
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}
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static void progIdToStr(char *strEnd, u64 progId)
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{
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while(progId)
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@ -319,6 +329,7 @@ static void patchCfgGetRegion(u8 *code, u32 size, u8 regionId, u32 CFGUHandleOff
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void patchCode(u64 progId, u8 *code, u32 size)
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{
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loadCFWInfo();
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switch(progId)
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{
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case 0x0004003000008F02LL: // USA Menu
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48
patches/svcGetCFWInfo.s
Normal file
48
patches/svcGetCFWInfo.s
Normal file
@ -0,0 +1,48 @@
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;
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; This file is part of Luma3DS
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; Copyright (C) 2016 Aurora Wright, TuxSH
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;
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; Additional Terms 7.b of GPLv3 applies to this file: Requiring preservation of specified
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; reasonable legal notices or author attributions in that material or in the Appropriate Legal
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; Notices displayed by works containing it.
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;
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.arm.little
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.create "build/svcGetCFWInfo.bin", 0
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.arm
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adr r1, infoStart
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add r2, r0, #(infoEnd - infoStart)
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loop:
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ldrb r3, [r1], #1
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strbt r3, [r0], #1
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cmp r0, r2
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blo loop
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mov r0, #0
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bx lr
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.pool
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infoStart:
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.ascii "LUMA" ; magic
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.word 0 ; version
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.word 0 ; truncated commit hash
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.word 0 ; config
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infoEnd:
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.close
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@ -301,6 +301,8 @@ static inline void patchNativeFirm(u32 firmVersion, FirmwareSource nandType, u32
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//Restore svcBackdoor
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reimplementSvcBackdoor((u8 *)firm + section[1].offset, section[1].size);
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}
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implementSvcGetCFWInfo((u8 *)firm + section[1].offset, section[1].size);
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}
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static inline void patchLegacyFirm(FirmwareType firmType)
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103
source/patches.c
103
source/patches.c
@ -24,6 +24,49 @@
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#include "memory.h"
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#include "config.h"
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#include "../build/rebootpatch.h"
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#include "../build/svcGetCFWInfopatch.h"
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#include "fs.h"
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static u32 *arm11ExceptionsPage = NULL;
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static u32 *arm11SvcTable = NULL;
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static u32 *arm11SvcHandler = NULL;
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static u8 *freeK11Space = NULL; //other than the one used for svcBackdoor
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static void findArm11ExceptionsPageAndSvcHandlerAndTable(u8 *pos, u32 size)
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{
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const u8 arm11ExceptionsPagePattern[] = {0x00, 0xB0, 0x9C, 0xE5};
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if(arm11ExceptionsPage == NULL) arm11ExceptionsPage = (u32 *)memsearch(pos, arm11ExceptionsPagePattern, size, 4) - 0xB;
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if((arm11SvcTable == NULL || arm11SvcHandler == NULL) && arm11ExceptionsPage != NULL)
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{
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u32 svcOffset = (-((arm11ExceptionsPage[2] & 0xFFFFFF) << 2) & (0xFFFFFF << 2)) - 8; //Branch offset + 8 for prefetch
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arm11SvcHandler = arm11SvcTable = (u32 *)(pos + *(u32 *)(pos + 0xFFFF0008 - svcOffset - 0xFFF00000 + 8) - 0xFFF00000); //SVC handler address
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while(*arm11SvcTable) arm11SvcTable++; //Look for SVC0 (NULL)
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}
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}
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static void findFreeK11Space(u8 *pos, u32 size)
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{
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if(freeK11Space == NULL)
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{
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const u8 bogus_pattern[] = { 0x1E, 0xFF, 0x2F, 0xE1, 0x1E, 0xFF, 0x2F, 0xE1, 0x1E, 0xFF,
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0x2F, 0xE1, 0x00, 0x10, 0xA0, 0xE3, 0x00, 0x10, 0xC0, 0xE5,
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0x1E, 0xFF, 0x2F, 0xE1 };
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u32 *someSpace = (u32 *)memsearch(pos, bogus_pattern, size, 24);
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// We couldn't find the place where to begin our search of an empty block
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if (someSpace == NULL)
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return;
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// Advance until we reach the padding area (filled with 0xFF)
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u32 *freeSpace;
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for(freeSpace = someSpace; *freeSpace != 0xFFFFFFFF; freeSpace++);
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freeK11Space = (u8 *)freeSpace;
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}
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}
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u8 *getProcess9(u8 *pos, u32 size, u32 *process9Size, u32 *process9MemAddr)
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{
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@ -111,25 +154,65 @@ void reimplementSvcBackdoor(u8 *pos, u32 size)
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0x00, 0xD0, 0xA0, 0xE1, //mov sp, r0
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0x11, 0xFF, 0x2F, 0xE1}; //bx r1
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const u8 pattern[] = {0x00, 0xB0, 0x9C, 0xE5}; //cpsid aif
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findArm11ExceptionsPageAndSvcHandlerAndTable(pos, size);
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u32 *exceptionsPage = (u32 *)memsearch(pos, pattern, size, 4) - 0xB;
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u32 svcOffset = (-((exceptionsPage[2] & 0xFFFFFF) << 2) & (0xFFFFFF << 2)) - 8; //Branch offset + 8 for prefetch
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u32 *svcTable = (u32 *)(pos + *(u32 *)(pos + 0xFFFF0008 - svcOffset - 0xFFF00000 + 8) - 0xFFF00000); //SVC handler address
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while(*svcTable) svcTable++; //Look for SVC0 (NULL)
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if(svcTable[0x7B] == 0)
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if(!arm11SvcTable[0x7B])
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{
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u32 *freeSpace;
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for(freeSpace = exceptionsPage; *freeSpace != 0xFFFFFFFF; freeSpace++);
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for(freeSpace = arm11ExceptionsPage; *freeSpace != 0xFFFFFFFF; freeSpace++);
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memcpy(freeSpace, svcBackdoor, 40);
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svcTable[0x7B] = 0xFFFF0000 + ((u8 *)freeSpace - (u8 *)exceptionsPage);
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arm11SvcTable[0x7B] = 0xFFFF0000 + ((u8 *)freeSpace - (u8 *)arm11ExceptionsPage);
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}
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}
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extern u32 config;
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void implementSvcGetCFWInfo(u8 *pos, u32 size)
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{
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typedef struct __attribute__((packed))
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{
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char magic[4];
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u8 versionMajor;
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u8 versionMinor;
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u8 versionBuild;
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u8 flags;
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u32 commitHash;
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u32 config;
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} CFWInfo;
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const char *rev = REVISION;
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bool isRelease = false;
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findArm11ExceptionsPageAndSvcHandlerAndTable(pos, size);
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findFreeK11Space(pos, size);
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memcpy(freeK11Space, svcGetCFWInfo, svcGetCFWInfo_size);
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CFWInfo *info = (CFWInfo *)memsearch(freeK11Space, "LUMA", svcGetCFWInfo_size, 4);
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info->commitHash = COMMIT_HASH;
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info->config = config;
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info->versionMajor = (u8)(rev[1] - '0');
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info->versionMinor = (u8)(rev[3] - '0');
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if(rev[4] == '.')
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{
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info->versionBuild = (u8)(rev[5] - '0');
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isRelease = rev[6] == 0;
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}
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else
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isRelease = rev[4] == 0;
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info->flags = 0 /* master branch */ | (((isRelease) ? 1 : 0) << 1) /* is release */;
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arm11SvcTable[0x2E] = 0xFFF00000 + freeK11Space - pos; //stubbed svc
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freeK11Space += svcGetCFWInfo_size;
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}
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void patchTitleInstallMinVersionCheck(u8 *pos, u32 size)
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{
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const u8 pattern[] = {0x0A, 0x81, 0x42, 0x02};
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@ -42,5 +42,6 @@ void patchFirmlaunches(u8 *pos, u32 size, u32 process9MemAddr);
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void patchFirmWrites(u8 *pos, u32 size);
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void patchFirmWriteSafe(u8 *pos, u32 size);
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void reimplementSvcBackdoor(u8 *pos, u32 size);
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void implementSvcGetCFWInfo(u8 *pos, u32 size);
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void applyLegacyFirmPatches(u8 *pos, FirmwareType firmType);
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u32 getLoader(u8 *pos, u32 *loaderSize);
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@ -131,12 +131,11 @@ void verifyPin(PINData *in)
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}
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while(!(pressed & PIN_BUTTONS));
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pressed &= PIN_BUTTONS & ~BUTTON_START;
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if(!pressed) continue;
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if(pressed & BUTTON_START) mcuPowerOff();
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pressed &= PIN_BUTTONS & ~BUTTON_START;
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if(!pressed) continue;
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char key = PINKeyToLetter(pressed);
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enteredPassword[cnt++] = (u8)key; // add character to password.
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