diff options
Diffstat (limited to 'mkbootfs')
| -rw-r--r-- | mkbootfs/mkbootfs.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/mkbootfs/mkbootfs.c b/mkbootfs/mkbootfs.c index 42c7e2bd..e2599da8 100644 --- a/mkbootfs/mkbootfs.c +++ b/mkbootfs/mkbootfs.c @@ -41,6 +41,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ its own weird format. It expects the header files to be from such a Mach system as CMU sets them up. */ +#include <a.out.h> +#include <stdio.h> +#include <sys/file.h> + /* Usage: mkbootfs execserver newdoto */ main (int argc, char **argv) @@ -50,7 +54,7 @@ main (int argc, char **argv) unsigned long foo; void *buf; struct nlist n; - + if (argc != 3) { fprintf (stderr, "Usage: %s execserver newdoto\n", argv[0]); @@ -97,7 +101,7 @@ main (int argc, char **argv) buf = malloc (a.a_data); read (execserver, buf, a.a_data); write (newdoto, buf, a.a_data); - free (bof); + free (buf); /* Finally, _execserver_start */ write (newdoto, &a.a_entry, sizeof a.a_entry); @@ -139,4 +143,39 @@ main (int argc, char **argv) n.n_value += sizeof (foo); /* Now, we have to write out the string table */ +#define DOSTRING(x) \ + write (newdoto, x, strlen (x) + 1); \ + lseek (newdoto, 50 - strlen (x) - 1, L_INCR); + + foo = 350; /* six strings and the beginning */ + write (newdoto, &foo, sizeof foo); + lseek (newdoto, 50 - sizeof foo, L_INCR); + + DOSTRING ("_execserver_text_size"); + DOSTRING ("_execserver_data_size"); + DOSTRING ("_execserver_bss_size"); + DOSTRING ("_execserver_text"); + DOSTRING ("_execserver_data"); + DOSTRING ("_execserver_start"); + + lseek (newdoto, -1, L_INCR); + foo = 0; + write (newdoto, &foo, 1); + + /* Now write out the header */ + a.a_data = + (4 * sizeof (int) + a.a_text + a.a_data + sizeof (struct exec)); + a.a_text = 0; + a.a_bss = 0; + a.a_syms = 6 * sizeof n; + a.a_entry = 0; + a.a_trsize = 0; + a.a_drsize = 0; + lseek (newdoto, 0, L_SET); + write (newdoto, &a, sizeof a); + + exit (0); +} + + |