diff --git a/sys/arch/pmax/stand/scsiboot/bootxx.c b/sys/arch/pmax/stand/scsiboot/bootxx.c index 4bb746bdc412..f6a27ad36128 100644 --- a/sys/arch/pmax/stand/scsiboot/bootxx.c +++ b/sys/arch/pmax/stand/scsiboot/bootxx.c @@ -1,4 +1,4 @@ -/* $NetBSD: bootxx.c,v 1.12 1999/03/14 00:57:07 simonb Exp $ */ +/* $NetBSD: bootxx.c,v 1.13 1999/03/25 05:16:06 simonb Exp $ */ /* * Copyright (c) 1992, 1993 @@ -45,7 +45,10 @@ #include "byteswap.h" -int errno; +int errno; + +int loadfile __P((char *name)); +extern int clear_cache __P((char *addr, int len)); /* * This gets arguments from the PROM, calls other routines to open @@ -56,7 +59,7 @@ int errno; * The argument "-a" means vmunix should do an automatic reboot. */ int -_main(argc, argv) +main(argc, argv) int argc; char **argv; { @@ -69,95 +72,80 @@ _main(argc, argv) argv++; } cp = *argv; - printf("Boot: %s\n", cp); + +#ifdef notused + printf(">> NetBSD/pmax Primary Boot\n"); +#endif entry = loadfile(cp); if (entry == -1) - return 0; + return (1); - printf("Starting at 0x%x\n\n", entry); + clear_cache((char *)RELOC, 1024 * 1024); if (callv == &callvec) ((void (*)())entry)(argc, argv, 0, 0); else ((void (*)())entry)(argc, argv, DEC_PROM_MAGIC, callv); + return (1); } /* * Open 'filename', read in program and return the entry point or -1 if error. */ +int loadfile(fname) register char *fname; { - register struct devices *dp; register int fd, i, n; - struct exec aout; char *buf; + Elf32_Ehdr ehdr; + Elf32_Phdr phdr; + char bootfname[64]; - if ((fd = open(fname, 0)) < 0) { - printf("open(%s) failed: %d\n", fname, errno); + strcpy(bootfname, fname); + buf = bootfname; + while ((n = *buf++) != '\0') { + if (n == ')') + break; + if (n != '/') + continue; + while ((n = *buf++) != '\0') + if (n == '/') + break; + break; + } + strcpy(buf, "boot"); + if ((fd = open(bootfname, 0)) < 0) { + printf("open %s: %d\n", bootfname, errno); goto err; } /* read the exec header */ - i = read(fd, (char *)&aout, sizeof(aout)); - if (i != sizeof(aout)) { - printf("no aout header\n"); - goto cerr; - } else if ((N_GETMAGIC(aout) != OMAGIC) - && (aout.a_midmag & 0xfff) != OMAGIC) { - printf("%s: bad magic %x\n", fname, aout.a_midmag); + i = read(fd, (char *)&ehdr, sizeof(ehdr)); + if ((i != sizeof(ehdr)) || + (bcmp(ehdr.e_ident, Elf32_e_ident, Elf32_e_siz) != 0)) { + printf("%s: No ELF header\n", bootfname); goto cerr; } - /* read the code ... */ - printf("Size: %d", aout.a_text); -#if 0 - /* In an OMAGIC file, we're already there. */ - if (lseek(fd, (off_t)N_TXTOFF(aout), 0) < 0) { - goto cerr; + for (i = 0; i < ehdr.e_phnum; i++) { + if (lseek(fd, (off_t) ehdr.e_phoff + i * sizeof(phdr), 0) < 0) + goto cerr; + if (read(fd, &phdr, sizeof(phdr)) != sizeof(phdr)) + goto cerr; + if (phdr.p_type != Elf_pt_load) + continue; + if (lseek(fd, (off_t)phdr.p_offset, 0) < 0) + goto cerr; + if (read(fd, (char *)phdr.p_paddr, phdr.p_filesz) != phdr.p_filesz) + goto cerr; } -#endif - n = read(fd, buf = (char *)aout.a_entry, aout.a_text); - /* ... and initialized data */ - printf("+%d", aout.a_data); - n += read(fd, buf + aout.a_text, aout.a_data); - i = aout.a_text + aout.a_data; - - if (aout.a_syms) { - /* - * Copy exec header to start of bss. - * Load symbols into end + sizeof(int). - */ - memcpy(buf += i, (char *)&aout, sizeof(aout)); - printf("+[%d]", aout.a_syms + 4); - n += read(fd, buf += aout.a_bss + 4, aout.a_syms + 4); - i += aout.a_syms + 4; - buf += aout.a_syms; - n += read(fd, buf + 4, *(long *)buf); - i += *(long *)buf; - } -#ifndef SMALL - (void) close(fd); -#endif - if (n < 0) { - printf("read error %d\n", errno); - goto err; - } else if (n != i) { - printf("read() short %d bytes\n", i - n); - goto err; - - } - - /* kernel will zero out its own bss */ - n = aout.a_bss; - printf("+%d\n", n); - - return ((int)aout.a_entry); + return (ehdr.e_entry); cerr: -#ifndef SMALL +#ifndef UFS_NOCLOSE (void) close(fd); #endif err: - printf("Can't boot '%s'\n", fname); + printf("Can't load '%s'\n", bootfname); return (-1); }