mirror of
https://github.com/brain-hackers/nkbin_maker
synced 2024-12-21 19:50:05 +09:00
format codes
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9e49a0152d
commit
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187
bsd-ce.c
187
bsd-ce.c
@ -1,113 +1,114 @@
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <unistd.h>
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char* outfile = "nk.bin";
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int verbose = 0;
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FILE* fout = NULL;
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FILE* kfile = NULL;
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FILE* lfile = NULL;
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char* loader = NULL;
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char *outfile = "nk.bin";
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int verbose = 0;
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FILE *fout = NULL;
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FILE *kfile = NULL;
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FILE *lfile = NULL;
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char *loader = NULL;
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unsigned int loader_size = 0;
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#define WRITE(arg,size) \
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if(!fwrite(arg, size, 1, fout)) \
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errx(1,"fwrite");
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#define WRITE(arg, size) \
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if (!fwrite(arg, size, 1, fout)) \
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errx(1, "fwrite");
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unsigned char magic[7] = "B000FF\n";
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unsigned char magic[7] = "B000FF\n";
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unsigned int start = 0xa0200000;
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unsigned int len = 0;
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unsigned int len = 0;
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void
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usage(){
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fprintf(stderr, "usage: bsd-ce [-h] [-o outfile] u-boot.bin\n");
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fprintf(stderr, "\n");
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fprintf(stderr, " -h this help\n");
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fprintf(stderr, " -o outfile write output to [outfile]\n");
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fprintf(stderr, " default: %s\n", outfile);
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void usage() {
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fprintf(stderr, "usage: bsd-ce [-h] [-o outfile] u-boot.bin\n");
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fprintf(stderr, "\n");
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fprintf(stderr, " -h this help\n");
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fprintf(stderr, " -o outfile write output to [outfile]\n");
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fprintf(stderr, " default: %s\n", outfile);
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}
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int
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main(int argc, char* argv[]){
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int n, i;
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unsigned int i32, cksum, ch;
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long len;
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while((i = getopt(argc, argv, "hvo:l:")) != -1) {
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switch(i) {
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case 'o':
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outfile = optarg;
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break;
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case 'h':
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default:
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usage();
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return 1;
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}
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}
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argc -= optind; argv += optind;
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if (argc != 1) {
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fprintf(stderr, "missing kernel name\n");
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usage();
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return 1;
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}
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int main(int argc, char *argv[]) {
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int n, i;
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unsigned int i32, cksum, ch;
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long len;
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while ((i = getopt(argc, argv, "hvo:l:")) != -1) {
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switch (i) {
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case 'o':
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outfile = optarg;
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break;
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case 'h':
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default:
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usage();
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return 1;
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1) {
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fprintf(stderr, "missing kernel name\n");
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usage();
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return 1;
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}
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/* load the loader (err...) */
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if ((lfile = fopen(argv[0], "rb")) == NULL)
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errx(1, "unable to open '%s'", argv[0]);
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fseek(lfile, 0, SEEK_END);
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loader_size = ftell(lfile);
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fseek(lfile, 0, SEEK_SET);
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if ((loader = (char*)malloc(loader_size)) == NULL)
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errx(1, "can't allocate %u bytes for loader", loader_size);
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if (!fread(loader, loader_size, 1, lfile))
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errx(1, "can't read loader file");
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fclose(lfile);
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// next, try to create the output file
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if ((fout = fopen(outfile, "wb")) == NULL)
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errx(1, "unable to create '%s'", outfile);
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/* load the loader (err...) */
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if ((lfile = fopen(argv[0], "rb")) == NULL)
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errx(1, "unable to open '%s'", argv[0]);
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fseek(lfile, 0, SEEK_END);
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loader_size = ftell(lfile);
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fseek(lfile, 0, SEEK_SET);
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if ((loader = (char *)malloc(loader_size)) == NULL)
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errx(1, "can't allocate %u bytes for loader", loader_size);
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if (!fread(loader, loader_size, 1, lfile))
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errx(1, "can't read loader file");
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fclose(lfile);
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/*
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* Write NK.BIN header - this is a magic identifier, the first address
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* data is stored, and the total length
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*/
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WRITE(magic, sizeof(magic));
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WRITE(&start, sizeof(start));
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WRITE(&loader_size, sizeof(loader_size));
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// next, try to create the output file
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if ((fout = fopen(outfile, "wb")) == NULL)
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errx(1, "unable to create '%s'", outfile);
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/*
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* Write NK.BIN header - this is a magic identifier, the first address
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* data is stored, and the total length
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*/
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WRITE(magic, sizeof(magic));
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WRITE(&start, sizeof(start));
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WRITE(&loader_size, sizeof(loader_size));
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/* Calculate the loader checksum */
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cksum = 0;
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for (len = 0; len < loader_size; len++) {
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ch = (unsigned char)loader[len]; cksum += ch;
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}
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i32 = start;
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WRITE(&i32, sizeof(unsigned int));
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i32 = loader_size;
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WRITE(&i32, sizeof(unsigned int));
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i32 = cksum;
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WRITE(&i32, sizeof(unsigned int));
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/* Calculate the loader checksum */
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cksum = 0;
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for (len = 0; len < loader_size; len++) {
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ch = (unsigned char)loader[len];
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cksum += ch;
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}
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i32 = start;
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WRITE(&i32, sizeof(unsigned int));
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/* Put the loader in place */
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for (len = 0; len < loader_size; len++) {
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putc(loader[len], fout);
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}
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i32 = loader_size;
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WRITE(&i32, sizeof(unsigned int));
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/*
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* Write NK.BIN footer - this is just a series of 3x uint32_t indicating
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* a file of zero length, starting at our init code.
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*/
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i32 = 0; WRITE(&i32, sizeof(i32));
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i32 = start; WRITE(&i32, sizeof(i32));
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i32 = 0; WRITE(&i32, sizeof(i32));
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i32 = cksum;
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WRITE(&i32, sizeof(unsigned int));
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free(loader);
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fclose(fout);
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return 0;
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/* Put the loader in place */
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for (len = 0; len < loader_size; len++) {
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putc(loader[len], fout);
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}
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/*
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* Write NK.BIN footer - this is just a series of 3x uint32_t indicating
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* a file of zero length, starting at our init code.
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*/
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i32 = 0;
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WRITE(&i32, sizeof(i32));
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i32 = start;
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WRITE(&i32, sizeof(i32));
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i32 = 0;
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WRITE(&i32, sizeof(i32));
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free(loader);
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fclose(fout);
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return 0;
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}
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96
nk-dump.c
96
nk-dump.c
@ -1,65 +1,63 @@
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#include <sys/types.h>
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#include <fcntl.h>
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#include <gelf.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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uint8_t magic[7] = "B000FF\n";
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uint8_t magic[7] = "B000FF\n";
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#define READ(buf,len) \
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if (!fread(buf,len,1,f)) \
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err(1, "read error");
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#define READ(buf, len) \
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if (!fread(buf, len, 1, f)) \
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err(1, "read error");
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int
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main(int argc, char* argv[])
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{
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FILE* f;
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uint8_t marker[7];
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uint32_t i32, addr, cksum, len, i;
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int n, ch, c;
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int main(int argc, char *argv[]) {
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FILE *f;
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uint8_t marker[7];
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uint32_t i32, addr, cksum, len, i;
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int n, ch, c;
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if (argc != 2) {
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fprintf(stderr,"usage: nk-dump filename\n");
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return 1;
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}
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if (argc != 2) {
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fprintf(stderr, "usage: nk-dump filename\n");
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return 1;
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}
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if ((f = fopen(argv[1], "rb")) == NULL)
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err(1, "can't open %s", argv[1]);
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if ((f = fopen(argv[1], "rb")) == NULL)
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err(1, "can't open %s", argv[1]);
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READ(marker, sizeof(marker));
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if (memcmp(magic, marker, sizeof(magic)))
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errx(1, "signature does not match");
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READ(&i32, sizeof(i32));
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printf("addr %08x\n", i32);
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READ(&i32, sizeof(i32));
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printf("length %08x\n", i32);
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n = 0;
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while (!feof(f)) {
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READ(&addr, sizeof(addr));
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READ(&len, sizeof(len));
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READ(&cksum, sizeof(cksum));
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READ(marker, sizeof(marker));
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if (memcmp(magic, marker, sizeof(magic)))
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errx(1, "signature does not match");
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READ(&i32, sizeof(i32));
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printf("addr %08x\n", i32);
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READ(&i32, sizeof(i32));
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printf("length %08x\n", i32);
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n = 0;
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while (!feof(f)) {
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READ(&addr, sizeof(addr));
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READ(&len, sizeof(len));
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READ(&cksum, sizeof(cksum));
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printf("image %u\n", n);
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c = 0;
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for (i = 0; i < len; i++) {
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ch = getc(f); c += ch;
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}
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printf(" addr %08x\n", addr);
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printf(" len %08x\n", len);
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printf(" cksum %08x", cksum);
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if (cksum == c) {
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printf(" [ok]\n");
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} else {
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printf(" != calculated cksum %08x\n", c);
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}
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printf("image %u\n", n);
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c = 0;
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for (i = 0; i < len; i++) {
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ch = getc(f);
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c += ch;
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}
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printf(" addr %08x\n", addr);
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printf(" len %08x\n", len);
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printf(" cksum %08x", cksum);
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if (cksum == c) {
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printf(" [ok]\n");
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} else {
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printf(" != calculated cksum %08x\n", c);
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}
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n++;
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}
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fclose(f);
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n++;
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}
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fclose(f);
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return 0;
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return 0;
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}
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/* vim:set ts=2 sw=2: */
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