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HookedBehemoth committed Sep 6, 2020
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7 changes: 7 additions & 0 deletions .gitignore
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.vscode/
build/

*.ovl
*.elf
*.nacp
*.nro
3 changes: 3 additions & 0 deletions .gitmodules
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[submodule "libs/tesla"]
path = libs/tesla
url = [email protected]:WerWolv/libtesla
339 changes: 339 additions & 0 deletions LICENSE

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208 changes: 208 additions & 0 deletions Makefile
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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------

ifeq ($(strip $(DEVKITPRO)),)
$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>/devkitpro")
endif

TOPDIR ?= $(CURDIR)
include $(DEVKITPRO)/libnx/switch_rules

#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# ROMFS is the directory containing data to be added to RomFS, relative to the Makefile (Optional)
#
# NO_ICON: if set to anything, do not use icon.
# NO_NACP: if set to anything, no .nacp file is generated.
# APP_TITLE is the name of the app stored in the .nacp file (Optional)
# APP_AUTHOR is the author of the app stored in the .nacp file (Optional)
# APP_VERSION is the version of the app stored in the .nacp file (Optional)
# APP_TITLEID is the titleID of the app stored in the .nacp file (Optional)
# ICON is the filename of the icon (.jpg), relative to the project folder.
# If not set, it attempts to use one of the following (in this order):
# - <Project name>.jpg
# - icon.jpg
# - <libnx folder>/default_icon.jpg
#
# CONFIG_JSON is the filename of the NPDM config file (.json), relative to the project folder.
# If not set, it attempts to use one of the following (in this order):
# - <Project name>.json
# - config.json
# If a JSON file is provided or autodetected, an ExeFS PFS0 (.nsp) is built instead
# of a homebrew executable (.nro). This is intended to be used for sysmodules.
# NACP building is skipped as well.
#---------------------------------------------------------------------------------
APP_TITLE := Studious Pancake
APP_VERSION := 0.1.0

TARGET := $(notdir $(CURDIR))
BUILD := build
SOURCES := source
DATA := data
INCLUDES := include libs/tesla/include

NO_ICON := 1

#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv8-a+crc+crypto -mtune=cortex-a57 -mtp=soft -fPIE

CFLAGS := -g -Wall -O2 -ffunction-sections \
$(ARCH) $(DEFINES)

CFLAGS += $(INCLUDE) -D__SWITCH__

CXXFLAGS := $(CFLAGS) -fno-exceptions -std=c++20

ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)

LIBS := -lnx

#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(PORTLIBS) $(LIBNX)


#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------

export OUTPUT := $(CURDIR)/$(TARGET)
export TOPDIR := $(CURDIR)

export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))

export DEPSDIR := $(CURDIR)/$(BUILD)

CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))

#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------

export OFILES_BIN := $(addsuffix .o,$(BINFILES))
export OFILES_SRC := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES := $(OFILES_BIN) $(OFILES_SRC)
export HFILES_BIN := $(addsuffix .h,$(subst .,_,$(BINFILES)))

export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)

export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)

ifeq ($(strip $(CONFIG_JSON)),)
jsons := $(wildcard *.json)
ifneq (,$(findstring $(TARGET).json,$(jsons)))
export APP_JSON := $(TOPDIR)/$(TARGET).json
else
ifneq (,$(findstring config.json,$(jsons)))
export APP_JSON := $(TOPDIR)/config.json
endif
endif
else
export APP_JSON := $(TOPDIR)/$(CONFIG_JSON)
endif

ifeq ($(strip $(ICON)),)
icons := $(wildcard *.jpg)
ifneq (,$(findstring $(TARGET).jpg,$(icons)))
export APP_ICON := $(TOPDIR)/$(TARGET).jpg
else
ifneq (,$(findstring icon.jpg,$(icons)))
export APP_ICON := $(TOPDIR)/icon.jpg
endif
endif
else
export APP_ICON := $(TOPDIR)/$(ICON)
endif

ifeq ($(strip $(NO_ICON)),)
export NROFLAGS += --icon=$(APP_ICON)
endif

ifeq ($(strip $(NO_NACP)),)
export NROFLAGS += --nacp=$(CURDIR)/$(TARGET).nacp
endif

ifneq ($(APP_TITLEID),)
export NACPFLAGS += --titleid=$(APP_TITLEID)
endif

ifneq ($(ROMFS),)
export NROFLAGS += --romfsdir=$(CURDIR)/$(ROMFS)
endif

.PHONY: $(BUILD) clean all

#---------------------------------------------------------------------------------
all: $(BUILD)


$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile

#---------------------------------------------------------------------------------
clean:
@rm -fr $(BUILD) $(TARGET).ovl $(TARGET).nro $(TARGET).nacp $(TARGET).elf


#---------------------------------------------------------------------------------
else
.PHONY: all

DEPENDS := $(OFILES:.o=.d)

#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all : $(OUTPUT).ovl

$(OUTPUT).ovl : $(OUTPUT).elf $(OUTPUT).nacp
@elf2nro $< $@ $(NROFLAGS)
@echo "built ... $(notdir $(OUTPUT).ovl)"

$(OUTPUT).elf : $(OFILES)

$(OFILES_SRC) : $(HFILES_BIN)

#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)

-include $(DEPENDS)

#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------
2 changes: 2 additions & 0 deletions README.md
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# Studious-Pancake
Reboot to hekate configs from tesla menu.
1 change: 1 addition & 0 deletions libs/tesla
Submodule tesla added at a68af1
132 changes: 132 additions & 0 deletions source/hekate.cpp
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/*
* Copyright (c) 2020 Studious Pancake
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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/>.
*/
#include "hekate.hpp"

#include "ini.h"
#include "reboot_to_payload.h"

#include <algorithm>
#include <cstdio>
#include <cstring>

namespace Hekate {

namespace {

int BootConfigHandler(void *user, char const *section, char const *name, char const *value) {
auto list = reinterpret_cast<BootConfigList *>(user);

/* ignore pre-config and global config entries. */
if (section[0] == '\0' || std::strcmp(section, "config") == 0) {
return 1;
}

/* Find existing entry. */
auto it = std::find_if(list->begin(), list->end(), [section](BootConfig &cfg) {
return cfg.name == section;
});

/* Create config entry if not existant. */
BootConfig &config = (it != list->end()) ? *it : list->emplace_back(section, list->size() + 1);

/* TODO: parse more information and display that. */
(void)config;

(void)name;
(void)value;

return 1;
}

constexpr char const *const PayloadPaths[] = {
"sdmc:/atmosphere/reboot_payload.bin",
"sdmc:/bootloader/update.bin",
"sdmc:/bootloader/payloads/hekate.bin",
"sdmc:/sept/payload.bin",
};

bool LoadPayload() {
for (auto path : PayloadPaths) {
/* Clear payload buffer. */
std::memset(g_reboot_payload, 0xFF, sizeof(g_reboot_payload));

/* Open potential hekate payload. */
auto file = fopen(path, "r");
if (file == nullptr)
continue;

/* Read payload to buffer. */
std::size_t ret = fread(g_reboot_payload, 1, sizeof(g_reboot_payload), file);

/* Close file. */
fclose(file);

/* Verify hekate payload loaded successfully. */
if (ret == 0 || *(u32 *)(g_reboot_payload + Hekate::MagicOffset) != Hekate::Magic)
continue;

return true;
}

return false;
}

}

BootConfigList LoadBootConfigList() {
BootConfigList configs;
ini_parse("sdmc:/bootloader/hekate_ipl.ini", BootConfigHandler, &configs);
return configs;
}

bool RebootToConfig(BootConfig const &config) {
/* Load payload. */
if (!LoadPayload())
return false;

/* Get boot storage pointer. */
auto storage = reinterpret_cast<BootStorage *>(g_reboot_payload + BootStorageOffset);

/* Set force autoboot and boot id. */
storage->boot_cfg = BootCfg_ForceAutoBoot;
storage->autoboot = config.index;
storage->autoboot_list = false;

/* Reboot */
reboot_to_payload();

return true;
}

bool RebootToUMS(UmsTarget const target) {
/* Load payload. */
if (!LoadPayload())
return false;

/* Get boot storage pointer. */
auto storage = reinterpret_cast<BootStorage *>(g_reboot_payload + BootStorageOffset);

/* Set force autoboot and boot id. */
storage->extra_cfg = ExtraCfg_NyxUms;
storage->ums = target;

/* Reboot */
reboot_to_payload();

return true;
}

}
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