/*
* Open 'filename', read in program and return the entry point or -1 if error.
*/
int
loadfile(int fd, vaddr_t *entryp)
{
struct devices *dp;
int rval;
/* Read the exec header. */
if (read(fd, &hdr, sizeof(hdr)) != sizeof(hdr)) {
printf("read header: %s\n", strerror(errno));
goto err;
}
#ifdef SPARC_BOOT_ELF
if (memcmp(ELFMAG, hdr.elf.e_ident, SELFMAG) == 0) {
rval = elf_exec(fd, &hdr.elf, entryp);
} else
#endif
#ifdef SPARC_BOOT_AOUT
if (!N_BADMAG(hdr.aout)) {
rval = aout_exec(fd, &hdr.aout, entryp);
} else
#endif
{
printf("unknown executable format\n");
}
err:
if (fd >= 0)
close(fd);
return (rval);
}
/*
* Open 'filename', read in program and and return 0 if ok 1 on error.
* Fill in marks
*/
int
loadfile(const char *fname, u_long *marks, int flags)
{
union {
#ifdef BOOT_ECOFF
struct ecoff_exechdr coff;
#endif
#ifdef BOOT_ELF
Elf_Ehdr elf;
#endif
#ifdef BOOT_AOUT
struct exec aout;
#endif
} hdr;
ssize_t nr;
int fd, rval;
/* Open the file. */
if ((fd = open(fname, 0)) < 0) {
WARN(("open %s", fname ? fname : "<default>"));
return -1;
}
/* Read the exec header. */
if ((nr = read(fd, &hdr, sizeof(hdr))) != sizeof(hdr)) {
WARN(("read header"));
goto err;
}
#ifdef BOOT_ECOFF
if (!ECOFF_BADMAG(&hdr.coff)) {
rval = coff_exec(fd, &hdr.coff, marks, flags);
} else
#endif
#ifdef BOOT_ELF
if (memcmp(hdr.elf.e_ident, ELFMAG, SELFMAG) == 0 &&
hdr.elf.e_ident[EI_CLASS] == ELFCLASS) {
#ifdef BOOT_ZBOOT
rval = zboot_exec(fd, marks, flags);
#else
rval = elf_exec(fd, &hdr.elf, marks, flags);
#endif
} else
#endif
#ifdef BOOT_AOUT
if (OKMAGIC(N_GETMAGIC(hdr.aout))
#ifndef NO_MID_CHECK
&& N_GETMID(hdr.aout) == MID_MACHINE
#endif
) {
rval = aout_exec(fd, &hdr.aout, marks, flags);
} else
#endif
{
rval = 1;
errno = EFTYPE;
WARN(("%s", fname ? fname : "<default>"));
}
if (rval == 0) {
PROGRESS(("=0x%lx\n", marks[MARK_END] - marks[MARK_START]));
return fd;
}
err:
(void)close(fd);
return -1;
}
