mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-21 07:46:12 +08:00
86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
//-----------------------------------------------------------------------------
|
|
// Copyright (C) Jonathan Westhues, Mar 2006
|
|
// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
|
|
//
|
|
// 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.
|
|
//
|
|
// See LICENSE.txt for the text of the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Just vector to AppMain(). This is in its own file so that I can place it
|
|
// with the linker script.
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef __START_H
|
|
#define __START_H
|
|
|
|
#include "proxmark3_arm.h"
|
|
#include "appmain.h"
|
|
#ifndef WITH_NO_COMPRESSION
|
|
#include "lz4.h"
|
|
#endif
|
|
#include "BigBuf.h"
|
|
#include "string.h"
|
|
#include "ticks.h"
|
|
|
|
extern common_area_t g_common_area;
|
|
extern uint32_t __data_src_start__[], __data_start__[], __data_end__[], __bss_start__[], __bss_end__[];
|
|
|
|
#ifndef WITH_NO_COMPRESSION
|
|
static void uncompress_data_section(void) {
|
|
int avail_in;
|
|
memcpy(&avail_in, __data_src_start__, sizeof(int));
|
|
int avail_out = (uint32_t)__data_end__ - (uint32_t)__data_start__; // uncompressed size. Correct.
|
|
// uncompress data segment to RAM
|
|
char *p = (char *)__data_src_start__;
|
|
int res = LZ4_decompress_safe(p + 4, (char *)__data_start__, avail_in, avail_out);
|
|
if (res < 0) {
|
|
while (true) {
|
|
LED_A_INV();
|
|
LED_B_INV();
|
|
LED_C_INV();
|
|
LED_D_INV();
|
|
SpinDelay(200);
|
|
}
|
|
}
|
|
// save the size of the compressed data section
|
|
g_common_area.arg1 = avail_in;
|
|
}
|
|
#endif
|
|
|
|
void __attribute__((section(".startos"))) Vector(void);
|
|
void Vector(void) {
|
|
/* Stack should have been set up by the bootloader */
|
|
|
|
if (g_common_area.magic != COMMON_AREA_MAGIC || g_common_area.version != 1) {
|
|
/* Initialize common area */
|
|
memset(&g_common_area, 0, sizeof(g_common_area));
|
|
g_common_area.magic = COMMON_AREA_MAGIC;
|
|
g_common_area.version = 1;
|
|
}
|
|
g_common_area.flags.osimage_present = 1;
|
|
|
|
/* Set up data segment: Copy from flash to ram */
|
|
#ifdef WITH_NO_COMPRESSION
|
|
uint32_t *data_src = __data_src_start__;
|
|
uint32_t *data_dst = __data_start__;
|
|
while (data_dst < __data_end__) *data_dst++ = *data_src++;
|
|
#else
|
|
uncompress_data_section();
|
|
#endif
|
|
|
|
/* Set up (that is: clear) BSS. */
|
|
uint32_t *bss_dst = __bss_start__;
|
|
while (bss_dst < __bss_end__) *bss_dst++ = 0;
|
|
|
|
AppMain();
|
|
}
|
|
#endif
|