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Very quick n dirty hack to get a script.bin from /dev/mem

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Signed-off-by: Olliver Schinagl <o.schinagl@ultimaker.com>
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Olliver Schinagl 2015-01-24 23:51:58 +01:00
parent 6ff4b1524f
commit 7ae3b2cfcb
1 changed files with 47 additions and 0 deletions
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script_extractor.c Normal file
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/*
* Copyright (C) 2015 Olliver Schinagl <oliver@schinagl.nl>
*
* 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 2 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/>.
*/
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#define SCRIPT_START 0x43000000
#define SCRIPT_SIZE 0x20000
int main(int argc, char *argv[]) {
char *addr;
int fd;
int i;
int size;
fd = open("/dev/mem", O_RDONLY);
size = SCRIPT_SIZE;
if (argc)
size = atoi(argv[1]);
addr = (char *)mmap(NULL, size, PROT_READ, MAP_SHARED, fd, SCRIPT_START);
for (i = 0; i < SCRIPT_SIZE; i++)
putchar(addr[i]);
munmap(NULL, SCRIPT_SIZE);
close(fd);
return 0;
}