Screeninit/binary patching/full alpha support; FatFs upgrade

CMakeLists.txt

@@ -16,6 +16,12 @@ file(GLOB_RECURSE SOURCE_FILES
 file(GLOB_RECURSE SOURCE_FILES_ARM9
     source/arm9/source/*
 )
+file(GLOB_RECURSE SOURCE_FILES_SCREENINIT
+    screeninit/source/*
+)
+file(GLOB_RECURSE SOURCE_FILES_LOADER
+    loader/source/*
+)
 
 # Filter
 file(GLOB FILTER_FILES
@@ -59,6 +65,30 @@ add_netload_target(CtrBootManager_3dslink CtrBootManager)
 add_citra_target(CtrBootManager_Citra CtrBootManager)
 #set_target_properties(CtrBootManager PROPERTIES COMPILE_FLAGS "-DCITRA")
 
+###################
+# Screen init
+###################
+add_executable(screeninit ${SOURCE_FILES_SCREENINIT})
+set(ASFLAGS "-mcpu=mpcore -mfloat-abi=hard")
+set(CFLAGS "-Wall -Wextra -MMD -MP -mthumb -mthumb-interwork $(ASFLAGS) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math")
+set_target_properties(screeninit PROPERTIES COMPILE_FLAGS ${CFLAGS})
+set_source_files_properties(screeninit/source/start.s PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp ${CFLAGS}")
+set_target_properties(screeninit PROPERTIES LINK_FLAGS
+        "-nostdlib -nostartfiles -g -mthumb -mthumb-interwork -Wl,-Map,screeninit.map -T ${CMAKE_SOURCE_DIR}/screeninit/linker.ld ")
+add_a9lh_target(screeninit_a9lh screeninit)
+
+###################
+# FIRM loader
+###################
+add_executable(loader ${SOURCE_FILES_LOADER})
+set(ASFLAGS "-mcpu=mpcore -mfloat-abi=hard")
+set(CFLAGS "-Wall -Wextra -MMD -MP -mthumb -mthumb-interwork $(ASFLAGS) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math")
+set_target_properties(loader PROPERTIES COMPILE_FLAGS ${CFLAGS})
+set_source_files_properties(loader/source/start.s PROPERTIES COMPILE_FLAGS "-x assembler-with-cpp ${CFLAGS}")
+set_target_properties(loader PROPERTIES LINK_FLAGS
+        "-nostdlib -nostartfiles -g -mthumb -mthumb-interwork -Wl,-Map,loader.map -T ${CMAKE_SOURCE_DIR}/loader/linker.ld ")
+add_a9lh_target(loader_a9lh loader)
+
 ###################
 # CtrBootManager9
 ###################

README.md

@@ -3,19 +3,28 @@
 CtrBootManager is a boot manager for some 3DS homebrew applications, like HBL and CFW.
 
 ##Dependencies
-- devkitpro-4.5 at least (ctrulib-1.0 at least)
+- devkitpro-4.5 at least (ctrulib-1.2.1 at least)
 - libconfig in portlibs (tried with v1.5)
 
 ##Building
+
 ###The recommended way:
  1. `mkdir build/`
  2. `cd build/`
  3. `cmake -DCMAKE_TOOLCHAIN_FILE=../DevkitArm3DS.cmake ../`
- 4. `cmake --build . --target CtrBootManager_a9lh`
+ 4. `cmake --build . --target screeninit_a9lh`
+ 5. `bin2h -c screeninit < screeninit.bin > screeninit.h`
+ 6. `cmake --build . --target chainloader_a9lh`
+ 7. `bin2h -c chainloader < chainloader.bin > chainloader.h`
+ 8. `cmake --build . --target CtrBootManager_a9lh`
 
 Binaries should now be in the `build` folder.
 
 ##Credits
+
+###To original developer:
+ * Cpasjuste
+
 ###For contributions to hb_menu:
  * smea : code
  * GEMISIS : code
@@ -25,6 +34,23 @@ Binaries should now be in the `build` folder.
  * Arkhandar : graphics
  * dotjasp : graphics (regionfree icon)
 
+###For screeninit code:
+ * Aurora Wright
+ * dark_samus
+ * bil1s
+ * Normmatt
+ * delebile 
+ * tiniVi
+
+###For FIRM loader and CtrNAND reading code:
+ * Aurora Wright
+ * TuxSH
+
+###For movies support code example:
+ * Wolfvak
+ * d0k3 : compressed movies
+
 ###Other credits:
+
 Readme by gemarcano
-This project also uses [Brahma](https://github.com/patois/Brahma). See its repository for its credits.
+This project also uses [Brahma](https://github.com/patois/Brahma). See its repository for its credits.

build/chainloader.h

@@ -0,0 +1,12 @@
+const char chainloader[]={
+0x00,0xd0,0x1f,0xe5,0x45,0x00,0x00,0xea,0x00,0xb8,0xff,0x01,0x00,0x00,0x00,0x00,0x00,0x10,0xa0,0xe3,0x00,0x00,0xa0,0xe3,0x00,0x20,0x81,0xe1,0x5e,0x2f,0x07,0xee,0x20
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+,0xff,0x2f,0xe1,0xf0,0xb5,0xcf,0xb0,0x0f,0x00,0x69,0x46,0x00,0x28,0x12,0xdd,0x8b,0x26,0x3d,0x68,0x00,0x23,0x08,0xac,0x76,0x00,0x03,0xe0,0xe2,0x54,0x01,0x33,0xb3
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+,0xc0,0x9f,0xe5,0x1c,0xff,0x2f,0xe1,0x45,0x90,0xff,0x01,0x00,0x00,0x00,0x00};
+const int chainloader_size=304;

build/screeninit.h

@@ -0,0 +1,32 @@
+const char screeninit[]={
+0xc0,0x01,0x0c,0xf1,0x01,0x00,0x00,0xea,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xc0,0x9f,0xe5,0x1c,0xff,0x2f,0xe1,0x21,0xfc,0xff,0x24,0x00,0x00,0x00,0x00,0x30
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+const int screeninit_size=952;

chainloader/Makefile

@@ -0,0 +1,44 @@
+rwildcard = $(foreach d, $(wildcard $1*), $(filter $(subst *, %, $2), $d) $(call rwildcard, $d/, $2))
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/base_tools
+
+name := $(shell basename $(CURDIR))
+
+dir_source := source
+dir_build := build
+dir_out := ../$(dir_build)
+
+ASFLAGS := -mcpu=arm946e-s
+CFLAGS  := -Wall -Wextra -marm $(ASFLAGS) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math
+LDFLAGS := -nostartfiles -Wl,--nmagic
+
+objects = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
+          $(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
+          $(call rwildcard, $(dir_source), *.s *.c)))
+
+.PHONY: all
+all: $(dir_out)/$(name).bin
+
+.PHONY: clean
+clean:
+	@rm -rf $(dir_build)
+
+$(dir_out)/$(name).bin: $(dir_build)/$(name).elf
+	$(OBJCOPY) -S -O binary $< $@
+
+$(dir_build)/$(name).elf: $(objects)
+	$(LINK.o) -T linker.ld $(OUTPUT_OPTION) $^
+
+$(dir_build)/memory.o: CFLAGS += -O3
+
+$(dir_build)/%.o: $(dir_source)/%.c
+	@mkdir -p "$(@D)"
+	$(COMPILE.c) $(OUTPUT_OPTION) $<
+
+$(dir_build)/%.o: $(dir_source)/%.s
+	@mkdir -p "$(@D)"
+	$(COMPILE.s) $(OUTPUT_OPTION) $<

chainloader/linker.ld

@@ -0,0 +1,21 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+
+ENTRY(_start)
+SECTIONS
+{
+    . = 0x01FF9000;
+
+    __start__ = ABSOLUTE(.);
+
+    .text   : ALIGN(4) { *(.text.start) *(.text*); . = ALIGN(4); }
+    .rodata : ALIGN(4) { *(.rodata*); . = ALIGN(4); }
+    .data   : ALIGN(4) { *(.data*); . = ALIGN(8); *(.bss* COMMON); . = ALIGN(8); }
+
+    . = ALIGN(4);
+
+    __end__ = ABSOLUTE(.);
+
+    __stack_top__    = 0x01FFB800;
+    __stack_bottom__ = 0x01FFA800;
+}

chainloader/source/cache.h

@@ -0,0 +1,31 @@
+/*
+*   This file is part of Luma3DS
+*   Copyright (C) 2016-2017 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#pragma once
+
+#include "types.h"
+
+void flushCaches(void);

chainloader/source/cache.s

@@ -0,0 +1,60 @@
+@   This file is part of Luma3DS
+@   Copyright (C) 2016-2017 Aurora Wright, TuxSH
+@
+@   This program is free software: you can redistribute it and/or modify
+@   it under the terms of the GNU General Public License as published by
+@   the Free Software Foundation, either version 3 of the License, or
+@   (at your option) any later version.
+@
+@   This program is distributed in the hope that it will be useful,
+@   but WITHOUT ANY WARRANTY; without even the implied warranty of
+@   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+@   GNU General Public License for more details.
+@
+@   You should have received a copy of the GNU General Public License
+@   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+@
+@   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+@       * Requiring preservation of specified reasonable legal notices or
+@         author attributions in that material or in the Appropriate Legal
+@         Notices displayed by works containing it.
+@       * Prohibiting misrepresentation of the origin of that material,
+@         or requiring that modified versions of such material be marked in
+@         reasonable ways as different from the original version.
+
+.text
+.arm
+.align 4
+
+.global flushCaches
+.type flushCaches, %function
+flushCaches:
+    @ Clean and flush both the data cache and instruction caches
+
+    @ Adpated from http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0155a/ch03s03s05.html ,
+    @ and https://github.com/gemarcano/libctr9_io/blob/master/src/ctr_system_ARM.c#L39 as well
+    @ Note: ARM's example is actually for a 8KB DCache (which is what the 3DS has)
+
+    @ Implemented in bootROM at addresses 0xffff0830 (DCache) and 0xffff0ab4 (ICache)
+
+    mov r1, #0                          @ segment counter
+    outer_loop:
+        mov r0, #0                      @ line counter
+
+        inner_loop:
+            orr r2, r1, r0                  @ generate segment and line address
+            mcr p15, 0, r2, c7, c14, 2      @ clean and flush the line
+            add r0, #0x20                   @ increment to next line
+            cmp r0, #0x400
+            bne inner_loop
+
+        add r1, #0x40000000
+        cmp r1, #0
+        bne outer_loop
+
+    mcr p15, 0, r1, c7, c10, 4              @ drain write buffer
+
+    @ Flush instruction cache
+    mcr p15, 0, r1, c7, c5, 0
+
+    bx lr

chainloader/source/firm.c

@@ -0,0 +1,42 @@
+/*
+*   This file is part of Luma3DS
+*   Copyright (C) 2016-2017 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+#include "firm.h"
+#include "memory.h"
+#include "cache.h"
+
+void disableMpuAndJumpToEntrypoints(int argc, char **argv, void *arm11Entry, void *arm9Entry);
+
+void launchFirm(Firm *firm, int argc, char **argv)
+{
+    //Copy FIRM sections to respective memory locations
+    for(u32 sectionNum = 0; sectionNum < 4; sectionNum++)
+        memcpy(firm->section[sectionNum].address, (u8 *)firm + firm->section[sectionNum].offset, firm->section[sectionNum].size);
+
+    disableMpuAndJumpToEntrypoints(argc, argv, firm->arm9Entry, firm->arm11Entry);
+
+    __builtin_unreachable();
+}