format codes

This commit is contained in:
Chiharu Shirasaka 2020-10-12 17:13:52 +09:00
parent 9e49a0152d
commit 0252289f9f
2 changed files with 141 additions and 142 deletions

187
bsd-ce.c
View File

@ -1,113 +1,114 @@
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>
char* outfile = "nk.bin";
int verbose = 0;
FILE* fout = NULL;
FILE* kfile = NULL;
FILE* lfile = NULL;
char* loader = NULL;
char *outfile = "nk.bin";
int verbose = 0;
FILE *fout = NULL;
FILE *kfile = NULL;
FILE *lfile = NULL;
char *loader = NULL;
unsigned int loader_size = 0;
#define WRITE(arg,size) \
if(!fwrite(arg, size, 1, fout)) \
errx(1,"fwrite");
#define WRITE(arg, size) \
if (!fwrite(arg, size, 1, fout)) \
errx(1, "fwrite");
unsigned char magic[7] = "B000FF\n";
unsigned char magic[7] = "B000FF\n";
unsigned int start = 0xa0200000;
unsigned int len = 0;
unsigned int len = 0;
void
usage(){
fprintf(stderr, "usage: bsd-ce [-h] [-o outfile] u-boot.bin\n");
fprintf(stderr, "\n");
fprintf(stderr, " -h this help\n");
fprintf(stderr, " -o outfile write output to [outfile]\n");
fprintf(stderr, " default: %s\n", outfile);
void usage() {
fprintf(stderr, "usage: bsd-ce [-h] [-o outfile] u-boot.bin\n");
fprintf(stderr, "\n");
fprintf(stderr, " -h this help\n");
fprintf(stderr, " -o outfile write output to [outfile]\n");
fprintf(stderr, " default: %s\n", outfile);
}
int
main(int argc, char* argv[]){
int n, i;
unsigned int i32, cksum, ch;
long len;
while((i = getopt(argc, argv, "hvo:l:")) != -1) {
switch(i) {
case 'o':
outfile = optarg;
break;
case 'h':
default:
usage();
return 1;
}
}
argc -= optind; argv += optind;
if (argc != 1) {
fprintf(stderr, "missing kernel name\n");
usage();
return 1;
}
int main(int argc, char *argv[]) {
int n, i;
unsigned int i32, cksum, ch;
long len;
while ((i = getopt(argc, argv, "hvo:l:")) != -1) {
switch (i) {
case 'o':
outfile = optarg;
break;
case 'h':
default:
usage();
return 1;
}
}
argc -= optind;
argv += optind;
if (argc != 1) {
fprintf(stderr, "missing kernel name\n");
usage();
return 1;
}
/* load the loader (err...) */
if ((lfile = fopen(argv[0], "rb")) == NULL)
errx(1, "unable to open '%s'", argv[0]);
fseek(lfile, 0, SEEK_END);
loader_size = ftell(lfile);
fseek(lfile, 0, SEEK_SET);
if ((loader = (char*)malloc(loader_size)) == NULL)
errx(1, "can't allocate %u bytes for loader", loader_size);
if (!fread(loader, loader_size, 1, lfile))
errx(1, "can't read loader file");
fclose(lfile);
// next, try to create the output file
if ((fout = fopen(outfile, "wb")) == NULL)
errx(1, "unable to create '%s'", outfile);
/* load the loader (err...) */
if ((lfile = fopen(argv[0], "rb")) == NULL)
errx(1, "unable to open '%s'", argv[0]);
fseek(lfile, 0, SEEK_END);
loader_size = ftell(lfile);
fseek(lfile, 0, SEEK_SET);
if ((loader = (char *)malloc(loader_size)) == NULL)
errx(1, "can't allocate %u bytes for loader", loader_size);
if (!fread(loader, loader_size, 1, lfile))
errx(1, "can't read loader file");
fclose(lfile);
/*
* Write NK.BIN header - this is a magic identifier, the first address
* data is stored, and the total length
*/
WRITE(magic, sizeof(magic));
WRITE(&start, sizeof(start));
WRITE(&loader_size, sizeof(loader_size));
// next, try to create the output file
if ((fout = fopen(outfile, "wb")) == NULL)
errx(1, "unable to create '%s'", outfile);
/*
* Write NK.BIN header - this is a magic identifier, the first address
* data is stored, and the total length
*/
WRITE(magic, sizeof(magic));
WRITE(&start, sizeof(start));
WRITE(&loader_size, sizeof(loader_size));
/* Calculate the loader checksum */
cksum = 0;
for (len = 0; len < loader_size; len++) {
ch = (unsigned char)loader[len]; cksum += ch;
}
i32 = start;
WRITE(&i32, sizeof(unsigned int));
i32 = loader_size;
WRITE(&i32, sizeof(unsigned int));
i32 = cksum;
WRITE(&i32, sizeof(unsigned int));
/* Calculate the loader checksum */
cksum = 0;
for (len = 0; len < loader_size; len++) {
ch = (unsigned char)loader[len];
cksum += ch;
}
i32 = start;
WRITE(&i32, sizeof(unsigned int));
/* Put the loader in place */
for (len = 0; len < loader_size; len++) {
putc(loader[len], fout);
}
i32 = loader_size;
WRITE(&i32, sizeof(unsigned int));
/*
* Write NK.BIN footer - this is just a series of 3x uint32_t indicating
* a file of zero length, starting at our init code.
*/
i32 = 0; WRITE(&i32, sizeof(i32));
i32 = start; WRITE(&i32, sizeof(i32));
i32 = 0; WRITE(&i32, sizeof(i32));
i32 = cksum;
WRITE(&i32, sizeof(unsigned int));
free(loader);
fclose(fout);
return 0;
/* Put the loader in place */
for (len = 0; len < loader_size; len++) {
putc(loader[len], fout);
}
/*
* Write NK.BIN footer - this is just a series of 3x uint32_t indicating
* a file of zero length, starting at our init code.
*/
i32 = 0;
WRITE(&i32, sizeof(i32));
i32 = start;
WRITE(&i32, sizeof(i32));
i32 = 0;
WRITE(&i32, sizeof(i32));
free(loader);
fclose(fout);
return 0;
}

View File

@ -1,65 +1,63 @@
#include <sys/types.h>
#include <fcntl.h>
#include <gelf.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
uint8_t magic[7] = "B000FF\n";
uint8_t magic[7] = "B000FF\n";
#define READ(buf,len) \
if (!fread(buf,len,1,f)) \
err(1, "read error");
#define READ(buf, len) \
if (!fread(buf, len, 1, f)) \
err(1, "read error");
int
main(int argc, char* argv[])
{
FILE* f;
uint8_t marker[7];
uint32_t i32, addr, cksum, len, i;
int n, ch, c;
int main(int argc, char *argv[]) {
FILE *f;
uint8_t marker[7];
uint32_t i32, addr, cksum, len, i;
int n, ch, c;
if (argc != 2) {
fprintf(stderr,"usage: nk-dump filename\n");
return 1;
}
if (argc != 2) {
fprintf(stderr, "usage: nk-dump filename\n");
return 1;
}
if ((f = fopen(argv[1], "rb")) == NULL)
err(1, "can't open %s", argv[1]);
if ((f = fopen(argv[1], "rb")) == NULL)
err(1, "can't open %s", argv[1]);
READ(marker, sizeof(marker));
if (memcmp(magic, marker, sizeof(magic)))
errx(1, "signature does not match");
READ(&i32, sizeof(i32));
printf("addr %08x\n", i32);
READ(&i32, sizeof(i32));
printf("length %08x\n", i32);
n = 0;
while (!feof(f)) {
READ(&addr, sizeof(addr));
READ(&len, sizeof(len));
READ(&cksum, sizeof(cksum));
READ(marker, sizeof(marker));
if (memcmp(magic, marker, sizeof(magic)))
errx(1, "signature does not match");
READ(&i32, sizeof(i32));
printf("addr %08x\n", i32);
READ(&i32, sizeof(i32));
printf("length %08x\n", i32);
n = 0;
while (!feof(f)) {
READ(&addr, sizeof(addr));
READ(&len, sizeof(len));
READ(&cksum, sizeof(cksum));
printf("image %u\n", n);
c = 0;
for (i = 0; i < len; i++) {
ch = getc(f); c += ch;
}
printf(" addr %08x\n", addr);
printf(" len %08x\n", len);
printf(" cksum %08x", cksum);
if (cksum == c) {
printf(" [ok]\n");
} else {
printf(" != calculated cksum %08x\n", c);
}
printf("image %u\n", n);
c = 0;
for (i = 0; i < len; i++) {
ch = getc(f);
c += ch;
}
printf(" addr %08x\n", addr);
printf(" len %08x\n", len);
printf(" cksum %08x", cksum);
if (cksum == c) {
printf(" [ok]\n");
} else {
printf(" != calculated cksum %08x\n", c);
}
n++;
}
fclose(f);
n++;
}
fclose(f);
return 0;
return 0;
}
/* vim:set ts=2 sw=2: */