void
xxboot_main(const char *boot_type)
{
struct open_file f;
char **npp;
char *file;
void *entry;
int fd;
u_long marks[MARK_MAX];
memset(marks, 0, sizeof(marks));
if (_is2)
marks[MARK_START] = sun2_map_mem_load();
printf(">> %s %s [%s]\n", bootprog_name, boot_type, bootprog_rev);
prom_get_boot_info();
/*
* Hold the raw device open so it will not be
* closed and reopened on every attempt to
* load files that did not exist.
*/
f.f_flags = F_RAW;
if (devopen(&f, 0, &file)) {
printf("%s: devopen failed\n", boot_type);
return;
}
/*
* Edit the "extended" kernel name based on
* the type of machine we are running on.
*/
if (_is2)
extname[EXTNAMEX - 1] = '2';
if (_is3x == 0)
extname[EXTNAMEX] = 0;
/* If we got the "-a" flag, ask for the name. */
if (prom_boothow & RB_ASKNAME)
goto just_ask;
/*
* If the PROM gave us a file name,
* it means the user asked for that
* kernel name explicitly.
*/
file = prom_bootfile;
if (file && *file) {
fd = loadfile(file, marks, LOAD_KERNEL);
if (fd == -1) {
goto err;
} else {
goto gotit;
}
}
/*
* Try the default kernel names.
*/
for (npp = kernelnames; *npp; npp++) {
file = *npp;
printf("%s: trying %s\n", boot_type, file);
fd = loadfile(file, marks, LOAD_KERNEL);
if (fd != -1)
goto gotit;
}
/*
* Ask what kernel name to load.
*/
for (;;) {
just_ask:
file = kernelnames[0];
printf("filename? [%s]: ", file);
gets(line);
if (line[0])
file = line;
fd = loadfile(file, marks, LOAD_KERNEL);
if (fd != -1)
break;
err:
printf("%s: %s: loadfile() failed.\n", boot_type, file);
}
gotit:
entry = (void *)marks[MARK_ENTRY];
if (_is2) {
printf("relocating program...");
entry = sun2_map_mem_run(entry);
}
printf("starting program at 0x%x\n", entry);
chain_to(entry);
}
int
main(void)
{
char *cp, *file;
void *entry;
u_long marks[MARK_MAX];
u_long mark_start;
int fd;
printf(">> %s tapeboot [%s]\n", bootprog_name, bootprog_rev);
prom_get_boot_info();
/*
* Can not hold open the tape device as is done
* in the other boot programs because it does
* its position-to-segment on open.
*/
/* Assume the Sun3/Sun3x load start. */
memset(marks, 0, sizeof(marks));
mark_start = 0;
/* If running on a Sun3X, use segment 2. */
if (_is3x)
defname[0] = '2';
/*
* If running on a Sun2, use segment 4 and
* do the special MMU setup.
*/
else if (_is2) {
defname[0] = '4';
mark_start = sun2_map_mem_load();
}
file = defname;
cp = prom_bootfile;
if (cp && *cp)
file = cp;
for (;;) {
if (prom_boothow & RB_ASKNAME) {
printf("tapeboot: segment? [%s]: ", defname);
gets(line);
if (line[0])
file = line;
else
file = defname;
} else
printf("tapeboot: loading segment %s\n", file);
marks[MARK_START] = mark_start;
if ((fd = loadfile(file, marks,
LOAD_KERNEL & ~LOAD_BACKWARDS)) != -1) {
break;
}
printf("tapeboot: segment %s: %s\n", file, strerror(errno));
prom_boothow |= RB_ASKNAME;
}
close(fd);
entry = (void *)marks[MARK_ENTRY];
if (_is2) {
printf("relocating program...");
entry = sun2_map_mem_run(entry);
}
printf("Starting program at 0x%x\n", (u_int)entry);
chain_to(entry);
return 0;
}