diff --git a/sys/boot/i386/boot2/boot2.c b/sys/boot/i386/boot2/boot2.c index 8c082cae2ba5..6508dd63956f 100644 --- a/sys/boot/i386/boot2/boot2.c +++ b/sys/boot/i386/boot2/boot2.c @@ -1,654 +1,654 @@ /*- * Copyright (c) 1998 Robert Nordier * All rights reserved. * * Redistribution and use in source and binary forms are freely * permitted provided that the above copyright notice and this * paragraph and the following disclaimer are duplicated in all * such forms. * * This software is provided "AS IS" and without any express or * implied warranties, including, without limitation, the implied * warranties of merchantability and fitness for a particular * purpose. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include "boot2.h" #include "lib.h" #define IO_KEYBOARD 1 #define IO_SERIAL 2 #define SECOND 18 /* Circa that many ticks in a second. */ #define RBX_ASKNAME 0x0 /* -a */ #define RBX_SINGLE 0x1 /* -s */ /* 0x2 is reserved for log2(RB_NOSYNC). */ /* 0x3 is reserved for log2(RB_HALT). */ /* 0x4 is reserved for log2(RB_INITNAME). */ #define RBX_DFLTROOT 0x5 /* -r */ #define RBX_KDB 0x6 /* -d */ /* 0x7 is reserved for log2(RB_RDONLY). */ /* 0x8 is reserved for log2(RB_DUMP). */ /* 0x9 is reserved for log2(RB_MINIROOT). */ #define RBX_CONFIG 0xa /* -c */ #define RBX_VERBOSE 0xb /* -v */ #define RBX_SERIAL 0xc /* -h */ #define RBX_CDROM 0xd /* -C */ /* 0xe is reserved for log2(RB_POWEROFF). */ #define RBX_GDB 0xf /* -g */ #define RBX_MUTE 0x10 /* -m */ /* 0x11 is reserved for log2(RB_SELFTEST). */ /* 0x12 is reserved for boot programs. */ /* 0x13 is reserved for boot programs. */ #define RBX_PAUSE 0x14 /* -p */ #define RBX_NOINTR 0x1c /* -n */ /* 0x1d is reserved for log2(RB_MULTIPLE) and is just misnamed here. */ #define RBX_DUAL 0x1d /* -D */ #define RBX_PROBEKBD 0x1e /* -P */ /* 0x1f is reserved for log2(RB_BOOTINFO). */ /* pass: -a, -s, -r, -d, -c, -v, -h, -C, -g, -m, -p, -D */ #define RBX_MASK 0x2005ffff #define PATH_CONFIG "/boot.config" #define PATH_BOOT3 "/boot/loader" #define PATH_KERNEL "/kernel" #define ARGS 0x900 #define NOPT 12 #define NDEV 3 #define MEM_BASE 0x12 #define MEM_EXT 0x15 #define V86_CY(x) ((x) & 1) #define V86_ZR(x) ((x) & 0x40) #define DRV_HARD 0x80 #define DRV_MASK 0x7f #define TYPE_AD 0 #define TYPE_DA 1 #define TYPE_MAXHARD TYPE_DA #define TYPE_FD 2 extern uint32_t _end; static const char optstr[NOPT] = "DhaCgmnPprsv"; static const unsigned char flags[NOPT] = { RBX_DUAL, RBX_SERIAL, RBX_ASKNAME, RBX_CDROM, RBX_GDB, RBX_MUTE, RBX_NOINTR, RBX_PROBEKBD, RBX_PAUSE, RBX_DFLTROOT, RBX_SINGLE, RBX_VERBOSE }; static const char *const dev_nm[NDEV] = {"ad", "da", "fd"}; static const unsigned char dev_maj[NDEV] = {30, 4, 2}; static struct dsk { unsigned drive; unsigned type; unsigned unit; unsigned slice; unsigned part; unsigned start; int init; } dsk; static char cmd[512]; static char kname[1024]; static uint32_t opts; static struct bootinfo bootinfo; static uint8_t ioctrl = IO_KEYBOARD; void exit(int); static void load(void); static int parse(void); static int xfsread(ino_t, void *, size_t); static int dskread(void *, unsigned, unsigned); static void printf(const char *,...); static void putchar(int); static uint32_t memsize(void); static int drvread(void *, unsigned, unsigned); static int keyhit(unsigned); static int xputc(int); static int xgetc(int); static int getc(int); static void memcpy(void *, const void *, int); static void memcpy(void *dst, const void *src, int len) { const char *s = src; char *d = dst; while (len--) *d++ = *s++; } static inline int strcmp(const char *s1, const char *s2) { for (; *s1 == *s2 && *s1; s1++, s2++); return (unsigned char)*s1 - (unsigned char)*s2; } #include "ufsread.c" static int xfsread(ino_t inode, void *buf, size_t nbyte) { if ((size_t)fsread(inode, buf, nbyte) != nbyte) { printf("Invalid %s\n", "format"); return -1; } return 0; } static inline uint32_t memsize(void) { v86.addr = MEM_EXT; v86.eax = 0x8800; v86int(); return v86.eax; } static inline void getstr(void) { char *s; int c; s = cmd; for (;;) { switch (c = xgetc(0)) { case 0: break; case '\177': case '\b': if (s > cmd) { s--; printf("\b \b"); } break; case '\n': case '\r': *s = 0; return; default: if (s - cmd < sizeof(cmd) - 1) *s++ = c; putchar(c); } } } static inline void putc(int c) { v86.addr = 0x10; v86.eax = 0xe00 | (c & 0xff); v86.ebx = 0x7; v86int(); } int main(void) { int autoboot; ino_t ino; dmadat = (void *)(roundup2(__base + (int32_t)&_end, 0x10000) - __base); v86.ctl = V86_FLAGS; dsk.drive = *(uint8_t *)PTOV(ARGS); dsk.type = dsk.drive & DRV_HARD ? TYPE_AD : TYPE_FD; dsk.unit = dsk.drive & DRV_MASK; dsk.slice = *(uint8_t *)PTOV(ARGS + 1) + 1; bootinfo.bi_version = BOOTINFO_VERSION; bootinfo.bi_size = sizeof(bootinfo); bootinfo.bi_basemem = 0; /* XXX will be filled by loader or kernel */ bootinfo.bi_extmem = memsize(); bootinfo.bi_memsizes_valid++; /* Process configuration file */ autoboot = 1; if ((ino = lookup(PATH_CONFIG))) fsread(ino, cmd, sizeof(cmd)); if (*cmd) { - printf("%s: %s", PATH_CONFIG, cmd); if (parse()) autoboot = 0; + printf("%s: %s", PATH_CONFIG, cmd); /* Do not process this command twice */ *cmd = 0; } /* * Try to exec stage 3 boot loader. If interrupted by a keypress, * or in case of failure, try to load a kernel directly instead. */ if (autoboot && !*kname) { memcpy(kname, PATH_BOOT3, sizeof(PATH_BOOT3)); if (!keyhit(3*SECOND)) { load(); memcpy(kname, PATH_KERNEL, sizeof(PATH_KERNEL)); } } /* Present the user with the boot2 prompt. */ for (;;) { printf("\nFreeBSD/i386 boot\n" "Default: %u:%s(%u,%c)%s\n" "boot: ", dsk.drive & DRV_MASK, dev_nm[dsk.type], dsk.unit, 'a' + dsk.part, kname); if (ioctrl & IO_SERIAL) sio_flush(); if (!autoboot || keyhit(5*SECOND)) getstr(); else putchar('\n'); autoboot = 0; if (parse()) putchar('\a'); else load(); } } /* XXX - Needed for btxld to link the boot2 binary; do not remove. */ void exit(int x) { } static void load(void) { union { struct exec ex; Elf32_Ehdr eh; } hdr; Elf32_Phdr ep[2]; Elf32_Shdr es[2]; caddr_t p; ino_t ino; uint32_t addr, x; int fmt, i, j; if (!(ino = lookup(kname))) { if (!ls) printf("No %s\n", kname); return; } if (xfsread(ino, &hdr, sizeof(hdr))) return; if (N_GETMAGIC(hdr.ex) == ZMAGIC) fmt = 0; else if (IS_ELF(hdr.eh)) fmt = 1; else { printf("Invalid %s\n", "format"); return; } if (fmt == 0) { addr = hdr.ex.a_entry; p = PTOV(addr); fs_off = PAGE_SIZE; if (xfsread(ino, p, hdr.ex.a_text)) return; p += roundup2(hdr.ex.a_text, PAGE_SIZE); if (xfsread(ino, p, hdr.ex.a_data)) return; p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE); bootinfo.bi_symtab = VTOP(p); memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms)); p += sizeof(hdr.ex.a_syms); if (hdr.ex.a_syms) { if (xfsread(ino, p, hdr.ex.a_syms)) return; p += hdr.ex.a_syms; if (xfsread(ino, p, sizeof(int))) return; x = *(uint32_t *)p; p += sizeof(int); x -= sizeof(int); if (xfsread(ino, p, x)) return; p += x; } } else { fs_off = hdr.eh.e_phoff; for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) { if (xfsread(ino, ep + j, sizeof(ep[0]))) return; if (ep[j].p_type == PT_LOAD) j++; } for (i = 0; i < 2; i++) { p = PTOV(ep[i].p_paddr); fs_off = ep[i].p_offset; if (xfsread(ino, p, ep[i].p_filesz)) return; } p += roundup2(ep[1].p_memsz, PAGE_SIZE); bootinfo.bi_symtab = VTOP(p); if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) { fs_off = hdr.eh.e_shoff + sizeof(es[0]) * (hdr.eh.e_shstrndx + 1); if (xfsread(ino, &es, sizeof(es))) return; for (i = 0; i < 2; i++) { memcpy(p, &es[i].sh_size, sizeof(es[i].sh_size)); p += sizeof(es[i].sh_size); fs_off = es[i].sh_offset; if (xfsread(ino, p, es[i].sh_size)) return; p += es[i].sh_size; } } addr = hdr.eh.e_entry; } bootinfo.bi_esymtab = VTOP(p); bootinfo.bi_kernelname = VTOP(kname); bootinfo.bi_bios_dev = dsk.drive; __exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK), MAKEBOOTDEV(dev_maj[dsk.type], 0, dsk.slice, dsk.unit, dsk.part), 0, 0, 0, VTOP(&bootinfo)); } static int parse() { char *arg = cmd; char *p, *q; unsigned int drv; int c, i; while ((c = *arg++)) { if (c == ' ' || c == '\t' || c == '\n') continue; for (p = arg; *p && *p != '\n' && *p != ' ' && *p != '\t'; p++); if (*p) *p++ = 0; if (c == '-') { while ((c = *arg++)) { for (i = 0; c != optstr[i]; i++) if (i == NOPT - 1) return -1; opts ^= 1 << flags[i]; } if (opts & 1 << RBX_PROBEKBD) { i = *(uint8_t *)PTOV(0x496) & 0x10; printf("Keyboard: %s\n", i ? "yes" : "no"); if (!i) opts |= 1 << RBX_DUAL | 1 << RBX_SERIAL; opts &= ~(1 << RBX_PROBEKBD); } ioctrl = opts & 1 << RBX_DUAL ? (IO_SERIAL|IO_KEYBOARD) : opts & 1 << RBX_SERIAL ? IO_SERIAL : IO_KEYBOARD; if (ioctrl & IO_SERIAL) sio_init(); } else { for (q = arg--; *q && *q != '('; q++); if (*q) { drv = -1; if (arg[1] == ':') { drv = *arg - '0'; if (drv > 9) return (-1); arg += 2; } if (q - arg != 2) return -1; for (i = 0; arg[0] != dev_nm[i][0] || arg[1] != dev_nm[i][1]; i++) if (i == NDEV - 1) return -1; dsk.type = i; arg += 3; dsk.unit = *arg - '0'; if (arg[1] != ',' || dsk.unit > 9) return -1; arg += 2; dsk.slice = WHOLE_DISK_SLICE; if (arg[1] == ',') { dsk.slice = *arg - '0' + 1; if (dsk.slice > NDOSPART) return -1; arg += 2; } if (arg[1] != ')') return -1; dsk.part = *arg - 'a'; if (dsk.part > 7) return (-1); arg += 2; if (drv == -1) drv = dsk.unit; dsk.drive = (dsk.type <= TYPE_MAXHARD ? DRV_HARD : 0) + drv; dsk_meta = 0; } if ((i = p - arg - !*(p - 1))) { if ((size_t)i >= sizeof(kname)) return -1; memcpy(kname, arg, i + 1); } } arg = p; } return 0; } static int dskread(void *buf, unsigned lba, unsigned nblk) { struct dos_partition *dp; struct disklabel *d; char *sec; unsigned sl, i; if (!dsk_meta) { sec = dmadat->secbuf; dsk.start = 0; if (drvread(sec, DOSBBSECTOR, 1)) return -1; dp = (void *)(sec + DOSPARTOFF); sl = dsk.slice; if (sl < BASE_SLICE) { for (i = 0; i < NDOSPART; i++) if (dp[i].dp_typ == DOSPTYP_386BSD && (dp[i].dp_flag & 0x80 || sl < BASE_SLICE)) { sl = BASE_SLICE + i; if (dp[i].dp_flag & 0x80 || dsk.slice == COMPATIBILITY_SLICE) break; } if (dsk.slice == WHOLE_DISK_SLICE) dsk.slice = sl; } if (sl != WHOLE_DISK_SLICE) { if (sl != COMPATIBILITY_SLICE) dp += sl - BASE_SLICE; if (dp->dp_typ != DOSPTYP_386BSD) { printf("Invalid %s\n", "slice"); return -1; } dsk.start = dp->dp_start; } if (drvread(sec, dsk.start + LABELSECTOR, 1)) return -1; d = (void *)(sec + LABELOFFSET); if (d->d_magic != DISKMAGIC || d->d_magic2 != DISKMAGIC) { if (dsk.part != RAW_PART) { printf("Invalid %s\n", "label"); return -1; } } else { if (!dsk.init) { if (d->d_type == DTYPE_SCSI) dsk.type = TYPE_DA; dsk.init++; } if (dsk.part >= d->d_npartitions || !d->d_partitions[dsk.part].p_size) { printf("Invalid %s\n", "partition"); return -1; } dsk.start += d->d_partitions[dsk.part].p_offset; dsk.start -= d->d_partitions[RAW_PART].p_offset; } } return drvread(buf, dsk.start + lba, nblk); } static void printf(const char *fmt,...) { va_list ap; char buf[10]; char *s; unsigned u; int c; va_start(ap, fmt); while ((c = *fmt++)) { if (c == '%') { c = *fmt++; switch (c) { case 'c': putchar(va_arg(ap, int)); continue; case 's': for (s = va_arg(ap, char *); *s; s++) putchar(*s); continue; case 'u': u = va_arg(ap, unsigned); s = buf; do *s++ = '0' + u % 10U; while (u /= 10U); while (--s >= buf) putchar(*s); continue; } } putchar(c); } va_end(ap); return; } static void putchar(int c) { if (c == '\n') xputc('\r'); xputc(c); } static int drvread(void *buf, unsigned lba, unsigned nblk) { static unsigned c = 0x2d5c7c2f; printf("%c\b", c = c << 8 | c >> 24); v86.ctl = V86_ADDR | V86_CALLF | V86_FLAGS; v86.addr = XREADORG; /* call to xread in boot1 */ v86.es = VTOPSEG(buf); v86.eax = lba; v86.ebx = VTOPOFF(buf); v86.ecx = lba >> 16; v86.edx = nblk << 8 | dsk.drive; v86int(); v86.ctl = V86_FLAGS; if (V86_CY(v86.efl)) { printf("error %u lba %u\n", v86.eax >> 8 & 0xff, lba); return -1; } return 0; } static int keyhit(unsigned ticks) { uint32_t t0, t1; if (opts & 1 << RBX_NOINTR) return 0; t0 = 0; for (;;) { if (xgetc(1)) return 1; t1 = *(uint32_t *)PTOV(0x46c); if (!t0) t0 = t1; if (t1 < t0 || t1 >= t0 + ticks) return 0; } } static int xputc(int c) { if (ioctrl & IO_KEYBOARD) putc(c); if (ioctrl & IO_SERIAL) sio_putc(c); return c; } static int xgetc(int fn) { if (opts & 1 << RBX_NOINTR) return 0; for (;;) { if (ioctrl & IO_KEYBOARD && getc(1)) return fn ? 1 : getc(0); if (ioctrl & IO_SERIAL && sio_ischar()) return fn ? 1 : sio_getc(); if (fn) return 0; } } static int getc(int fn) { v86.addr = 0x16; v86.eax = fn << 8; v86int(); return fn == 0 ? v86.eax & 0xff : !V86_ZR(v86.efl); } diff --git a/sys/boot/i386/gptboot/gptboot.c b/sys/boot/i386/gptboot/gptboot.c index 8c082cae2ba5..6508dd63956f 100644 --- a/sys/boot/i386/gptboot/gptboot.c +++ b/sys/boot/i386/gptboot/gptboot.c @@ -1,654 +1,654 @@ /*- * Copyright (c) 1998 Robert Nordier * All rights reserved. * * Redistribution and use in source and binary forms are freely * permitted provided that the above copyright notice and this * paragraph and the following disclaimer are duplicated in all * such forms. * * This software is provided "AS IS" and without any express or * implied warranties, including, without limitation, the implied * warranties of merchantability and fitness for a particular * purpose. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include "boot2.h" #include "lib.h" #define IO_KEYBOARD 1 #define IO_SERIAL 2 #define SECOND 18 /* Circa that many ticks in a second. */ #define RBX_ASKNAME 0x0 /* -a */ #define RBX_SINGLE 0x1 /* -s */ /* 0x2 is reserved for log2(RB_NOSYNC). */ /* 0x3 is reserved for log2(RB_HALT). */ /* 0x4 is reserved for log2(RB_INITNAME). */ #define RBX_DFLTROOT 0x5 /* -r */ #define RBX_KDB 0x6 /* -d */ /* 0x7 is reserved for log2(RB_RDONLY). */ /* 0x8 is reserved for log2(RB_DUMP). */ /* 0x9 is reserved for log2(RB_MINIROOT). */ #define RBX_CONFIG 0xa /* -c */ #define RBX_VERBOSE 0xb /* -v */ #define RBX_SERIAL 0xc /* -h */ #define RBX_CDROM 0xd /* -C */ /* 0xe is reserved for log2(RB_POWEROFF). */ #define RBX_GDB 0xf /* -g */ #define RBX_MUTE 0x10 /* -m */ /* 0x11 is reserved for log2(RB_SELFTEST). */ /* 0x12 is reserved for boot programs. */ /* 0x13 is reserved for boot programs. */ #define RBX_PAUSE 0x14 /* -p */ #define RBX_NOINTR 0x1c /* -n */ /* 0x1d is reserved for log2(RB_MULTIPLE) and is just misnamed here. */ #define RBX_DUAL 0x1d /* -D */ #define RBX_PROBEKBD 0x1e /* -P */ /* 0x1f is reserved for log2(RB_BOOTINFO). */ /* pass: -a, -s, -r, -d, -c, -v, -h, -C, -g, -m, -p, -D */ #define RBX_MASK 0x2005ffff #define PATH_CONFIG "/boot.config" #define PATH_BOOT3 "/boot/loader" #define PATH_KERNEL "/kernel" #define ARGS 0x900 #define NOPT 12 #define NDEV 3 #define MEM_BASE 0x12 #define MEM_EXT 0x15 #define V86_CY(x) ((x) & 1) #define V86_ZR(x) ((x) & 0x40) #define DRV_HARD 0x80 #define DRV_MASK 0x7f #define TYPE_AD 0 #define TYPE_DA 1 #define TYPE_MAXHARD TYPE_DA #define TYPE_FD 2 extern uint32_t _end; static const char optstr[NOPT] = "DhaCgmnPprsv"; static const unsigned char flags[NOPT] = { RBX_DUAL, RBX_SERIAL, RBX_ASKNAME, RBX_CDROM, RBX_GDB, RBX_MUTE, RBX_NOINTR, RBX_PROBEKBD, RBX_PAUSE, RBX_DFLTROOT, RBX_SINGLE, RBX_VERBOSE }; static const char *const dev_nm[NDEV] = {"ad", "da", "fd"}; static const unsigned char dev_maj[NDEV] = {30, 4, 2}; static struct dsk { unsigned drive; unsigned type; unsigned unit; unsigned slice; unsigned part; unsigned start; int init; } dsk; static char cmd[512]; static char kname[1024]; static uint32_t opts; static struct bootinfo bootinfo; static uint8_t ioctrl = IO_KEYBOARD; void exit(int); static void load(void); static int parse(void); static int xfsread(ino_t, void *, size_t); static int dskread(void *, unsigned, unsigned); static void printf(const char *,...); static void putchar(int); static uint32_t memsize(void); static int drvread(void *, unsigned, unsigned); static int keyhit(unsigned); static int xputc(int); static int xgetc(int); static int getc(int); static void memcpy(void *, const void *, int); static void memcpy(void *dst, const void *src, int len) { const char *s = src; char *d = dst; while (len--) *d++ = *s++; } static inline int strcmp(const char *s1, const char *s2) { for (; *s1 == *s2 && *s1; s1++, s2++); return (unsigned char)*s1 - (unsigned char)*s2; } #include "ufsread.c" static int xfsread(ino_t inode, void *buf, size_t nbyte) { if ((size_t)fsread(inode, buf, nbyte) != nbyte) { printf("Invalid %s\n", "format"); return -1; } return 0; } static inline uint32_t memsize(void) { v86.addr = MEM_EXT; v86.eax = 0x8800; v86int(); return v86.eax; } static inline void getstr(void) { char *s; int c; s = cmd; for (;;) { switch (c = xgetc(0)) { case 0: break; case '\177': case '\b': if (s > cmd) { s--; printf("\b \b"); } break; case '\n': case '\r': *s = 0; return; default: if (s - cmd < sizeof(cmd) - 1) *s++ = c; putchar(c); } } } static inline void putc(int c) { v86.addr = 0x10; v86.eax = 0xe00 | (c & 0xff); v86.ebx = 0x7; v86int(); } int main(void) { int autoboot; ino_t ino; dmadat = (void *)(roundup2(__base + (int32_t)&_end, 0x10000) - __base); v86.ctl = V86_FLAGS; dsk.drive = *(uint8_t *)PTOV(ARGS); dsk.type = dsk.drive & DRV_HARD ? TYPE_AD : TYPE_FD; dsk.unit = dsk.drive & DRV_MASK; dsk.slice = *(uint8_t *)PTOV(ARGS + 1) + 1; bootinfo.bi_version = BOOTINFO_VERSION; bootinfo.bi_size = sizeof(bootinfo); bootinfo.bi_basemem = 0; /* XXX will be filled by loader or kernel */ bootinfo.bi_extmem = memsize(); bootinfo.bi_memsizes_valid++; /* Process configuration file */ autoboot = 1; if ((ino = lookup(PATH_CONFIG))) fsread(ino, cmd, sizeof(cmd)); if (*cmd) { - printf("%s: %s", PATH_CONFIG, cmd); if (parse()) autoboot = 0; + printf("%s: %s", PATH_CONFIG, cmd); /* Do not process this command twice */ *cmd = 0; } /* * Try to exec stage 3 boot loader. If interrupted by a keypress, * or in case of failure, try to load a kernel directly instead. */ if (autoboot && !*kname) { memcpy(kname, PATH_BOOT3, sizeof(PATH_BOOT3)); if (!keyhit(3*SECOND)) { load(); memcpy(kname, PATH_KERNEL, sizeof(PATH_KERNEL)); } } /* Present the user with the boot2 prompt. */ for (;;) { printf("\nFreeBSD/i386 boot\n" "Default: %u:%s(%u,%c)%s\n" "boot: ", dsk.drive & DRV_MASK, dev_nm[dsk.type], dsk.unit, 'a' + dsk.part, kname); if (ioctrl & IO_SERIAL) sio_flush(); if (!autoboot || keyhit(5*SECOND)) getstr(); else putchar('\n'); autoboot = 0; if (parse()) putchar('\a'); else load(); } } /* XXX - Needed for btxld to link the boot2 binary; do not remove. */ void exit(int x) { } static void load(void) { union { struct exec ex; Elf32_Ehdr eh; } hdr; Elf32_Phdr ep[2]; Elf32_Shdr es[2]; caddr_t p; ino_t ino; uint32_t addr, x; int fmt, i, j; if (!(ino = lookup(kname))) { if (!ls) printf("No %s\n", kname); return; } if (xfsread(ino, &hdr, sizeof(hdr))) return; if (N_GETMAGIC(hdr.ex) == ZMAGIC) fmt = 0; else if (IS_ELF(hdr.eh)) fmt = 1; else { printf("Invalid %s\n", "format"); return; } if (fmt == 0) { addr = hdr.ex.a_entry; p = PTOV(addr); fs_off = PAGE_SIZE; if (xfsread(ino, p, hdr.ex.a_text)) return; p += roundup2(hdr.ex.a_text, PAGE_SIZE); if (xfsread(ino, p, hdr.ex.a_data)) return; p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE); bootinfo.bi_symtab = VTOP(p); memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms)); p += sizeof(hdr.ex.a_syms); if (hdr.ex.a_syms) { if (xfsread(ino, p, hdr.ex.a_syms)) return; p += hdr.ex.a_syms; if (xfsread(ino, p, sizeof(int))) return; x = *(uint32_t *)p; p += sizeof(int); x -= sizeof(int); if (xfsread(ino, p, x)) return; p += x; } } else { fs_off = hdr.eh.e_phoff; for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) { if (xfsread(ino, ep + j, sizeof(ep[0]))) return; if (ep[j].p_type == PT_LOAD) j++; } for (i = 0; i < 2; i++) { p = PTOV(ep[i].p_paddr); fs_off = ep[i].p_offset; if (xfsread(ino, p, ep[i].p_filesz)) return; } p += roundup2(ep[1].p_memsz, PAGE_SIZE); bootinfo.bi_symtab = VTOP(p); if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) { fs_off = hdr.eh.e_shoff + sizeof(es[0]) * (hdr.eh.e_shstrndx + 1); if (xfsread(ino, &es, sizeof(es))) return; for (i = 0; i < 2; i++) { memcpy(p, &es[i].sh_size, sizeof(es[i].sh_size)); p += sizeof(es[i].sh_size); fs_off = es[i].sh_offset; if (xfsread(ino, p, es[i].sh_size)) return; p += es[i].sh_size; } } addr = hdr.eh.e_entry; } bootinfo.bi_esymtab = VTOP(p); bootinfo.bi_kernelname = VTOP(kname); bootinfo.bi_bios_dev = dsk.drive; __exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK), MAKEBOOTDEV(dev_maj[dsk.type], 0, dsk.slice, dsk.unit, dsk.part), 0, 0, 0, VTOP(&bootinfo)); } static int parse() { char *arg = cmd; char *p, *q; unsigned int drv; int c, i; while ((c = *arg++)) { if (c == ' ' || c == '\t' || c == '\n') continue; for (p = arg; *p && *p != '\n' && *p != ' ' && *p != '\t'; p++); if (*p) *p++ = 0; if (c == '-') { while ((c = *arg++)) { for (i = 0; c != optstr[i]; i++) if (i == NOPT - 1) return -1; opts ^= 1 << flags[i]; } if (opts & 1 << RBX_PROBEKBD) { i = *(uint8_t *)PTOV(0x496) & 0x10; printf("Keyboard: %s\n", i ? "yes" : "no"); if (!i) opts |= 1 << RBX_DUAL | 1 << RBX_SERIAL; opts &= ~(1 << RBX_PROBEKBD); } ioctrl = opts & 1 << RBX_DUAL ? (IO_SERIAL|IO_KEYBOARD) : opts & 1 << RBX_SERIAL ? IO_SERIAL : IO_KEYBOARD; if (ioctrl & IO_SERIAL) sio_init(); } else { for (q = arg--; *q && *q != '('; q++); if (*q) { drv = -1; if (arg[1] == ':') { drv = *arg - '0'; if (drv > 9) return (-1); arg += 2; } if (q - arg != 2) return -1; for (i = 0; arg[0] != dev_nm[i][0] || arg[1] != dev_nm[i][1]; i++) if (i == NDEV - 1) return -1; dsk.type = i; arg += 3; dsk.unit = *arg - '0'; if (arg[1] != ',' || dsk.unit > 9) return -1; arg += 2; dsk.slice = WHOLE_DISK_SLICE; if (arg[1] == ',') { dsk.slice = *arg - '0' + 1; if (dsk.slice > NDOSPART) return -1; arg += 2; } if (arg[1] != ')') return -1; dsk.part = *arg - 'a'; if (dsk.part > 7) return (-1); arg += 2; if (drv == -1) drv = dsk.unit; dsk.drive = (dsk.type <= TYPE_MAXHARD ? DRV_HARD : 0) + drv; dsk_meta = 0; } if ((i = p - arg - !*(p - 1))) { if ((size_t)i >= sizeof(kname)) return -1; memcpy(kname, arg, i + 1); } } arg = p; } return 0; } static int dskread(void *buf, unsigned lba, unsigned nblk) { struct dos_partition *dp; struct disklabel *d; char *sec; unsigned sl, i; if (!dsk_meta) { sec = dmadat->secbuf; dsk.start = 0; if (drvread(sec, DOSBBSECTOR, 1)) return -1; dp = (void *)(sec + DOSPARTOFF); sl = dsk.slice; if (sl < BASE_SLICE) { for (i = 0; i < NDOSPART; i++) if (dp[i].dp_typ == DOSPTYP_386BSD && (dp[i].dp_flag & 0x80 || sl < BASE_SLICE)) { sl = BASE_SLICE + i; if (dp[i].dp_flag & 0x80 || dsk.slice == COMPATIBILITY_SLICE) break; } if (dsk.slice == WHOLE_DISK_SLICE) dsk.slice = sl; } if (sl != WHOLE_DISK_SLICE) { if (sl != COMPATIBILITY_SLICE) dp += sl - BASE_SLICE; if (dp->dp_typ != DOSPTYP_386BSD) { printf("Invalid %s\n", "slice"); return -1; } dsk.start = dp->dp_start; } if (drvread(sec, dsk.start + LABELSECTOR, 1)) return -1; d = (void *)(sec + LABELOFFSET); if (d->d_magic != DISKMAGIC || d->d_magic2 != DISKMAGIC) { if (dsk.part != RAW_PART) { printf("Invalid %s\n", "label"); return -1; } } else { if (!dsk.init) { if (d->d_type == DTYPE_SCSI) dsk.type = TYPE_DA; dsk.init++; } if (dsk.part >= d->d_npartitions || !d->d_partitions[dsk.part].p_size) { printf("Invalid %s\n", "partition"); return -1; } dsk.start += d->d_partitions[dsk.part].p_offset; dsk.start -= d->d_partitions[RAW_PART].p_offset; } } return drvread(buf, dsk.start + lba, nblk); } static void printf(const char *fmt,...) { va_list ap; char buf[10]; char *s; unsigned u; int c; va_start(ap, fmt); while ((c = *fmt++)) { if (c == '%') { c = *fmt++; switch (c) { case 'c': putchar(va_arg(ap, int)); continue; case 's': for (s = va_arg(ap, char *); *s; s++) putchar(*s); continue; case 'u': u = va_arg(ap, unsigned); s = buf; do *s++ = '0' + u % 10U; while (u /= 10U); while (--s >= buf) putchar(*s); continue; } } putchar(c); } va_end(ap); return; } static void putchar(int c) { if (c == '\n') xputc('\r'); xputc(c); } static int drvread(void *buf, unsigned lba, unsigned nblk) { static unsigned c = 0x2d5c7c2f; printf("%c\b", c = c << 8 | c >> 24); v86.ctl = V86_ADDR | V86_CALLF | V86_FLAGS; v86.addr = XREADORG; /* call to xread in boot1 */ v86.es = VTOPSEG(buf); v86.eax = lba; v86.ebx = VTOPOFF(buf); v86.ecx = lba >> 16; v86.edx = nblk << 8 | dsk.drive; v86int(); v86.ctl = V86_FLAGS; if (V86_CY(v86.efl)) { printf("error %u lba %u\n", v86.eax >> 8 & 0xff, lba); return -1; } return 0; } static int keyhit(unsigned ticks) { uint32_t t0, t1; if (opts & 1 << RBX_NOINTR) return 0; t0 = 0; for (;;) { if (xgetc(1)) return 1; t1 = *(uint32_t *)PTOV(0x46c); if (!t0) t0 = t1; if (t1 < t0 || t1 >= t0 + ticks) return 0; } } static int xputc(int c) { if (ioctrl & IO_KEYBOARD) putc(c); if (ioctrl & IO_SERIAL) sio_putc(c); return c; } static int xgetc(int fn) { if (opts & 1 << RBX_NOINTR) return 0; for (;;) { if (ioctrl & IO_KEYBOARD && getc(1)) return fn ? 1 : getc(0); if (ioctrl & IO_SERIAL && sio_ischar()) return fn ? 1 : sio_getc(); if (fn) return 0; } } static int getc(int fn) { v86.addr = 0x16; v86.eax = fn << 8; v86int(); return fn == 0 ? v86.eax & 0xff : !V86_ZR(v86.efl); } diff --git a/sys/boot/pc98/boot2/boot.c b/sys/boot/pc98/boot2/boot.c index fe288c0b99a9..feccc7ec0357 100644 --- a/sys/boot/pc98/boot2/boot.c +++ b/sys/boot/pc98/boot2/boot.c @@ -1,405 +1,405 @@ /* * Mach Operating System * Copyright (c) 1992, 1991 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. * * from: Mach, [92/04/03 16:51:14 rvb] */ /* Copyright 1988, 1989, 1990, 1991, 1992 by Intel Corporation, Santa Clara, California. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appears in all copies and that both the copyright notice and this permission notice appear in supporting documentation, and that the name of Intel not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include __FBSDID("$FreeBSD$"); #include "boot.h" #include #include #include #define ouraddr (BOOTSEG << 4) /* XXX */ #define BOOT_CONFIG_SIZE 512 #define BOOT_HELP_SIZE 2048 #define KERNEL_CONFIG_SIZE 512 #define NAMEBUF_LEN 1024 /* oversized to defend against gets() */ static char boot_config[BOOT_CONFIG_SIZE]; static char boot_help[BOOT_HELP_SIZE]; char *name; static char kernel_config[KERNEL_CONFIG_SIZE]; static char kernel_config_namebuf[NAMEBUF_LEN + sizeof "config"]; static char linebuf[NAMEBUF_LEN]; static char namebuf[NAMEBUF_LEN]; static struct bootinfo bootinfo; int loadflags; static void getbootdev(char *ptr, int *howto); static void loadprog(void); static void readfile(char *path, char *buf, size_t nbytes); /* NORETURN */ void boot(int drive) { int i, ret; unsigned char disk_equips; /* Pick up the story from the Bios on geometry of disks */ for(ret = 0; ret < 2; ret ++) { if (*(unsigned char*)V(0xA155d) & (1 << ret)) { bootinfo.bi_bios_geom[ret] = get_diskinfo(ret + 0x80); } } bootinfo.bi_basemem = memsize(0); bootinfo.bi_extmem = memsize(1); bootinfo.bi_memsizes_valid = 1; gateA20(); /* set machine type to PC98_SYSTEM_PARAMETER */ machine_check(); /* * The default boot device is the first partition in the * compatibility slice on the boot drive. */ dosdev = drive; maj = (drive&0x70) >> 3; /* a good first bet */ if (maj == 4) { /* da */ disk_equips = *(unsigned char *)V(0xA1482); unit = 0; for (i=0; i<(drive&0x0f); i++) { int media = ((unsigned *)V(0xA1460))[i] & 0x1F; if ((disk_equips >> i) & 1) /* HD */ unit++; else if (media == 7) /* MO */ unit++; } } else { unit = drive & 0x0f; } readfile("boot.config", boot_config, BOOT_CONFIG_SIZE); name = "/boot/loader"; if (boot_config[0] != '\0') { - printf("boot.config: %s", boot_config); getbootdev(boot_config, &loadflags); + printf("boot.config: %s", boot_config); if (openrd() != 0) name = "kernel"; } loadstart: /* print this all each time.. (saves space to do so) */ /* If we have looped, use the previous entries as defaults */ printf("\r \n>> FreeBSD BOOT @ 0x%x: %d/%d k of memory, %s%s console\n" "Boot default: %d:%s(%d,%c)%s\n" "%s\n" "boot: ", ouraddr, bootinfo.bi_basemem, bootinfo.bi_extmem, (loadflags & RB_SERIAL) ? "serial" : "internal", (loadflags & RB_DUAL) ? "/dual" : "", dosdev & 0x0f, devs[maj], unit, 'a' + part, name ? name : "*specify_a_kernel_name*", boot_help); /* * Ignore flags from previous attempted boot, if any. * XXX this is now too strict. Settings given in boot.config should * not be changed. */ loadflags &= (RB_DUAL | RB_SERIAL); /* * Be paranoid and make doubly sure that the input buffer is empty. */ if (loadflags & (RB_DUAL | RB_SERIAL)) init_serial(); if (!gets(linebuf)) putchar('\n'); else getbootdev(linebuf, &loadflags); if (name == NULL) goto loadstart; ret = openrd(); if (ret != 0) { if (ret > 0) printf("Can't find %s\n", name); goto loadstart; } /* if (inode.i_mode&IEXEC) loadflags |= RB_KDB; */ loadprog(); goto loadstart; } static void loadprog(void) { struct exec head; int startaddr; int addr; /* physical address.. not directly useable */ int bootdev; int i; unsigned pad; char *s, *t; read((void *)&head, sizeof(head)); if ( N_BADMAG(head)) { printf("Invalid format!\n"); return; } poff = N_TXTOFF(head); /*if(poff==0) poff = 32;*/ /* * We assume that the entry address is the same as the lowest text * address and that the kernel startup code handles relocation by * this address rounded down to a multiple of 16M. */ startaddr = head.a_entry & 0x00FFFFFF; addr = startaddr; printf("Booting %d:%s(%d,%c)%s @ 0x%x\n" , dosdev & 0x0f , devs[maj] , unit , 'a'+part , name , addr); if(addr < 0x00100000) { /* * Bail out, instead of risking to damage the BIOS * variables, the loader, or the adapter memory area. * We don't support loading below 1 MB any more. */ printf("Start address too low\n"); return; } printf("text=0x%x ", head.a_text); /********************************************************/ /* LOAD THE TEXT SEGMENT */ /********************************************************/ xread((void *)addr, head.a_text); addr += head.a_text; /********************************************************/ /* Load the Initialised data after the text */ /********************************************************/ while (addr & PAGE_MASK) *(char *)addr++ = 0; printf("data=0x%x ", head.a_data); xread((void *)addr, head.a_data); addr += head.a_data; /********************************************************/ /* Skip over the uninitialised data */ /* (but clear it) */ /********************************************************/ printf("bss=0x%x ", head.a_bss); /* * XXX however, we should be checking that we don't load ... into * nonexistent memory. A full symbol table is unlikely to fit on 4MB * machines. */ /* kzip & kernel will zero their own bss */ addr += head.a_bss; /* Pad to a page boundary. */ pad = (unsigned)addr & PAGE_MASK; if (pad != 0) { pad = PAGE_SIZE - pad; addr += pad; } bootinfo.bi_symtab = addr; /********************************************************/ /* Copy the symbol table size */ /********************************************************/ pcpy(&head.a_syms, (void *)addr, sizeof(head.a_syms)); addr += sizeof(head.a_syms); /********************************************************/ /* Load the symbol table */ /********************************************************/ printf("symbols=[+0x%x+0x%x+0x%x", pad, sizeof(head.a_syms), head.a_syms); xread((void *)addr, head.a_syms); addr += head.a_syms; /********************************************************/ /* Load the string table size */ /********************************************************/ read((void *)&i, sizeof(int)); pcpy(&i, (void *)addr, sizeof(int)); i -= sizeof(int); addr += sizeof(int); /********************************************************/ /* Load the string table */ /********************************************************/ printf("+0x%x+0x%x]\n", sizeof(int), i); xread((void *)addr, i); addr += i; bootinfo.bi_esymtab = addr; /* * For backwards compatibility, use the previously-unused adaptor * and controller bitfields to hold the slice number. */ bootdev = MAKEBOOTDEV(maj, (slice >> 4), slice & 0xf, unit, part); bootinfo.bi_version = BOOTINFO_VERSION; bootinfo.bi_kernelname = (u_int32_t)(name + ouraddr); bootinfo.bi_nfs_diskless = 0; bootinfo.bi_size = sizeof(bootinfo); bootinfo.bi_bios_dev = dosdev; /* * Load the kernel config file (if any). Its name is given by * appending ".config" to the kernel name. Build the name inline * because no str*() functions are available. The file has to be * copied to &disklabel for userconfig. It can't be loaded there * directly because the label is used late in readfile() in some * unusual cases. */ s = name; t = kernel_config_namebuf; do ; while ((*t++ = *s++) != '\0'); s = ".config"; --t; do ; while ((*t++ = *s++) != '\0'); readfile(kernel_config_namebuf, kernel_config, KERNEL_CONFIG_SIZE); pcpy(kernel_config, (char *)&disklabel + ouraddr, KERNEL_CONFIG_SIZE); printf("total=0x%x entry point=0x%x\n", addr, startaddr); startprog(startaddr, loadflags | RB_BOOTINFO, bootdev, (unsigned)&bootinfo + ouraddr); } static void readfile(char *path, char *buf, size_t nbytes) { int openstatus; buf[0] = '\0'; name = path; openstatus = openrd(); if (openstatus == 0) { /* XXX no way to determine file size. */ read(buf, nbytes); } buf[nbytes - 1] = '\0'; } static void getbootdev(char *ptr, int *howto) { char c; int f; char *p; /* Copy the flags to save some bytes. */ f = *howto; c = *ptr; for (;;) { nextarg: while (c == ' ' || c == '\n') c = *++ptr; if (c == '-') while ((c = *++ptr) != '\0') { if (c == ' ' || c == '\n') goto nextarg; if (c == 'a') f |= RB_ASKNAME; if (c == 'C') f |= RB_CDROM; if (c == 'D') f ^= RB_DUAL; if (c == 'd') f |= RB_KDB; if (c == 'g') f |= RB_GDB; if (c == 'h') f ^= RB_SERIAL; if (c == 'P') f |= RB_PROBEKBD; if (c == 'r') f |= RB_DFLTROOT; if (c == 's') f |= RB_SINGLE; if (c == 'v') f |= RB_VERBOSE; } if (c == '\0') break; p = name = namebuf; while (c != '\0' && c != ' ' && c != '\n') { *p++ = c; c = *++ptr; } *p = '\0'; } if (f & RB_PROBEKBD) { if (probe_keyboard()) { f |= RB_DUAL | RB_SERIAL; printf("No keyboard found\n"); } else printf("Keyboard found\n"); } if (f & (RB_DUAL | RB_SERIAL)) init_serial(); *howto = f; }