mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-05 22:18:16 +00:00
089db2cadf
[no changelog]
178 lines
4.8 KiB
C
178 lines
4.8 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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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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#include <gfx/terminal.h>
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#include <io/display.h>
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#include <rtl/mini_printf.h>
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#include <sys/bootutils.h>
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#include <sys/system.h>
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#include <util/rsod.h>
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#define RSOD_DEFAULT_TITLE "INTERNAL ERROR";
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#define RSOD_DEFAULT_MESSAGE "UNSPECIFIED";
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#define RSOD_DEFAULT_FOOTER "PLEASE VISIT TREZOR.IO/RSOD";
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#define RSOD_EXIT_MESSAGE "EXIT %d"
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#ifdef KERNEL_MODE
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#define RSOD_FG_COLOR COLOR_WHITE
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#ifdef USE_RGB_COLORS
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#define RSOD_BG_COLOR gfx_color_rgb(0x7F, 0x00, 0x00)
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#else
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#define RSOD_BG_COLOR COLOR_BLACK
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#endif
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void rsod_terminal(const systask_postmortem_t* pminfo) {
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display_set_orientation(0);
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term_set_color(RSOD_FG_COLOR, RSOD_BG_COLOR);
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const char* title = RSOD_DEFAULT_TITLE;
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const char* message = RSOD_DEFAULT_MESSAGE;
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const char* footer = RSOD_DEFAULT_FOOTER;
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const char* file = NULL;
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char message_buf[32] = {0};
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int line = 0;
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switch (pminfo->reason) {
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case TASK_TERM_REASON_EXIT:
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mini_snprintf(message_buf, sizeof(message_buf), RSOD_EXIT_MESSAGE,
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pminfo->exit.code);
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message = message_buf;
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break;
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case TASK_TERM_REASON_ERROR:
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title = pminfo->error.title;
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message = pminfo->error.message;
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footer = pminfo->error.footer;
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break;
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case TASK_TERM_REASON_FATAL:
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message = pminfo->fatal.expr;
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file = pminfo->fatal.file;
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line = pminfo->fatal.line;
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break;
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case TASK_TERM_REASON_FAULT:
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message = system_fault_message(&pminfo->fault);
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break;
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}
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if (title != NULL) {
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term_printf("%s\n", title);
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}
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if (message != NULL) {
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term_printf("msg : %s\n", message);
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}
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if (file) {
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term_printf("file: %s:%d\n", file, line);
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}
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#ifdef SCM_REVISION
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const uint8_t* rev = (const uint8_t*)SCM_REVISION;
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term_printf("rev : %02x%02x%02x%02x%02x\n", rev[0], rev[1], rev[2], rev[3],
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rev[4]);
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#endif
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if (footer != NULL) {
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term_printf("\n%s\n", footer);
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}
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display_set_backlight(255);
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}
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#endif // KERNEL_MODE
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#ifdef FANCY_FATAL_ERROR
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#include "rust_ui.h"
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void rsod_gui(const systask_postmortem_t* pminfo) {
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const char* title = RSOD_DEFAULT_TITLE;
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const char* message = RSOD_DEFAULT_MESSAGE;
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const char* footer = RSOD_DEFAULT_FOOTER;
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char message_buf[128] = {0};
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switch (pminfo->reason) {
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case TASK_TERM_REASON_EXIT:
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mini_snprintf(message_buf, sizeof(message_buf), RSOD_EXIT_MESSAGE,
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pminfo->exit.code);
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message = message_buf;
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break;
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case TASK_TERM_REASON_ERROR:
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title = pminfo->error.title;
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message = pminfo->error.message;
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footer = pminfo->error.footer;
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break;
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case TASK_TERM_REASON_FATAL:
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message = pminfo->fatal.expr;
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if (message[0] == '\0') {
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mini_snprintf(message_buf, sizeof(message_buf), "%s:%u",
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pminfo->fatal.file, (unsigned int)pminfo->fatal.line);
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message = message_buf;
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}
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break;
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case TASK_TERM_REASON_FAULT:
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message = system_fault_message(&pminfo->fault);
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break;
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}
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// Render the RSOD in Rust
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display_rsod_rust(title, message, footer);
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}
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#endif // FANCY_FATAL_ERROR
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#ifdef KERNEL_MODE
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// Initializes system in emergency mode and shows RSOD
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static void init_and_show_rsod(const systask_postmortem_t* pminfo) {
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// Initialize the system's core services
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// (If the kernel crashes in emergency mode, we are out of options
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// and show the RSOD without attempting to re-enter emergency mode)
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system_init(&rsod_terminal);
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// Initialize necessary drivers
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display_init(DISPLAY_RESET_CONTENT);
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#ifdef FANCY_FATAL_ERROR
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// Show the RSOD using Rust GUI
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rsod_gui(pminfo);
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#else
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// Show the RSOD using terminal
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rsod_terminal(pminfo);
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#endif
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// Wait for the user to manually power off the device
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secure_shutdown();
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}
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// Universal panic handler
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// (may be called from interrupt context)
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void rsod_panic_handler(const systask_postmortem_t* pminfo) {
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// Since the system state is unreliable, enter emergency mode
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// and show the RSOD.
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system_emergency_rescue(&init_and_show_rsod, pminfo);
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// The previous function call never returns
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}
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#endif // KERNEL_MODE
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