mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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boot: functional exception handling/rebooting to payload
This commit is contained in:
Michael Scire
parent
9319463a6e
commit
505324f625
4 changed files with 123 additions and 4 deletions
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@ -16,6 +16,12 @@ ifneq (, $(strip $(shell git status --porcelain 2>/dev/null)))
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AMSREV := $(AMSREV)-dirty
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endif
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define _bin2o
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bin2s $< | $(AS) -o $(@)
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _ | tr - _)`"_end[];" > `(echo $(<F) | tr . _ | tr - _)`.h
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _ | tr - _)`"[];" >> `(echo $(<F) | tr . _ | tr - _)`.h
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echo "extern const u32" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _ | tr - _)`_size";" >> `(echo $(<F) | tr . _ | tr - _)`.h
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endef
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#---------------------------------------------------------------------------------
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# TARGET is the name of the output
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@ -69,14 +75,14 @@ export OUTPUT := $(CURDIR)/$(TARGET)
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export TOPDIR := $(CURDIR)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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$(foreach dir,$(DATA),$(CURDIR)/$(dir)) $(TOPDIR)/../../fusee/fusee-primary
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export DEPSDIR := $(CURDIR)/$(BUILD)
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CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*))) fusee-primary.bin
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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@ -116,18 +122,22 @@ else
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export APP_JSON := $(TOPDIR)/$(CONFIG_JSON)
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endif
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.PHONY: $(BUILD) clean all
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.PHONY: $(BUILD) check_fusee clean all
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#---------------------------------------------------------------------------------
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all: $(BUILD)
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$(BUILD):
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check_fusee:
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@$(MAKE) -C $(TOPDIR)/../../fusee/fusee-primary all
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$(BUILD): check_fusee
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@$(MAKE) -C $(TOPDIR)/../../fusee/fusee-primary clean
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@rm -fr $(BUILD) $(TARGET).kip $(TARGET).elf
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@ -149,6 +159,11 @@ $(OUTPUT).elf : $(OFILES)
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#---------------------------------------------------------------------------------
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# you need a rule like this for each extension you use as binary data
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#---------------------------------------------------------------------------------
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fusee_primary.bin.o fusee_primary_bin.h: fusee-primary.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(_bin2o)
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%.bin.o : %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@ -24,6 +24,7 @@
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#include <stratosphere.hpp>
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#include "boot_functions.hpp"
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#include "boot_reboot_manager.hpp"
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extern "C" {
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extern u32 __start__;
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@ -50,6 +51,11 @@ void __libnx_exception_handler(ThreadExceptionDump *ctx) {
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StratosphereCrashHandler(ctx);
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}
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void __libstratosphere_exception_handler(AtmosphereFatalErrorContext *ctx) {
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/* We're boot sysmodule, so manually reboot to fatal error. */
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BootRebootManager::RebootForFatalError(ctx);
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}
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void __libnx_initheap(void) {
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void* addr = nx_inner_heap;
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size_t size = nx_inner_heap_size;
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68
stratosphere/boot/source/boot_reboot_manager.cpp
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68
stratosphere/boot/source/boot_reboot_manager.cpp
Normal file
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@ -0,0 +1,68 @@
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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#include <switch.h>
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#include <stratosphere.hpp>
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#include <strings.h>
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#include "boot_reboot_manager.hpp"
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#include "fusee-primary_bin.h"
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static u8 g_work_page[0x1000] __attribute__ ((aligned (0x1000)));
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static void ClearIram() {
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/* Make page FFs. */
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memset(g_work_page, 0xFF, sizeof(g_work_page));
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/* Overwrite all of IRAM with FFs. */
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for (size_t ofs = 0; ofs < IRAM_SIZE; ofs += sizeof(g_work_page)) {
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CopyToIram(IRAM_BASE + ofs, g_work_page, sizeof(g_work_page));
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}
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}
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static void DoRebootToPayload() {
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/* Ensure clean IRAM state. */
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ClearIram();
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/* Copy in payload. */
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for (size_t ofs = 0; ofs < fusee_primary_bin_size; ofs += 0x1000) {
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std::memcpy(g_work_page, &fusee_primary_bin[ofs], std::min(static_cast<size_t>(fusee_primary_bin_size - ofs), size_t(0x1000)));
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CopyToIram(IRAM_PAYLOAD_BASE + ofs, g_work_page, 0x1000);
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}
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RebootToIramPayload();
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}
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Result BootRebootManager::PerformReboot() {
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DoRebootToPayload();
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return ResultSuccess;
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}
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void BootRebootManager::RebootForFatalError(AtmosphereFatalErrorContext *ctx) {
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/* Ensure clean IRAM state. */
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ClearIram();
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/* Copy in payload. */
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for (size_t ofs = 0; ofs < fusee_primary_bin_size; ofs += 0x1000) {
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std::memcpy(g_work_page, &fusee_primary_bin[ofs], std::min(static_cast<size_t>(fusee_primary_bin_size - ofs), size_t(0x1000)));
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CopyToIram(IRAM_PAYLOAD_BASE + ofs, g_work_page, 0x1000);
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}
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std::memset(g_work_page, 0xCC, sizeof(g_work_page));
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std::memcpy(g_work_page, ctx, sizeof(*ctx));
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CopyToIram(IRAM_PAYLOAD_BASE + IRAM_PAYLOAD_MAX_SIZE, g_work_page, sizeof(g_work_page));
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RebootToIramPayload();
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}
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30
stratosphere/boot/source/boot_reboot_manager.hpp
Normal file
30
stratosphere/boot/source/boot_reboot_manager.hpp
Normal file
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@ -0,0 +1,30 @@
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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#pragma once
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#include <switch.h>
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#include <stratosphere.hpp>
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#define IRAM_BASE 0x40000000ull
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#define IRAM_SIZE 0x40000
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#define IRAM_PAYLOAD_MAX_SIZE 0x2E000
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#define IRAM_PAYLOAD_BASE 0x40010000ull
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class BootRebootManager {
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public:
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static Result PerformReboot();
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static void RebootForFatalError(AtmosphereFatalErrorContext *ctx);
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};
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