Files
mckernel/arch/x86_64/elfboot/test_main.c
2017-10-18 09:20:52 +09:00

54 lines
918 B
C

/**
* \file test_main.c
* License details are found in the file LICENSE.
* \brief
* Test of loading an ELF file.
* \author Taku Shimosawa <shimosawa@is.s.u-tokyo.ac.jp> \par
* Copyright (C) 2011 - 2012 Taku Shimosawa
*/
/*
* HISTORY
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/mman.h>
unsigned long elfboot_main(unsigned char *image);
int main(int argc, char **argv)
{
int fd;
struct stat st;
void *p;
if (argc < 2) {
fprintf(stderr, "Usage : %s (elf)\n", argv[0]);
return 1;
}
fd = open(argv[1], O_RDONLY);
if (fd < 0){
perror("open");
return 1;
}
fstat(fd, &st);
p = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
if (p == MAP_FAILED) {
perror("mmap");
return 2;
}
printf("read result : %lx\n", elfboot_main(p));
munmap(p, st.st_size);
close(fd);
return 0;
}