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Add support for selectively loading sections, and make this compile in 

userland with -DINSTALLBOOT
This commit is contained in:
christos 1999-01-28 22:45:06 +00:00
parent 9f32ccf21d
commit f1fd49f426
3 changed files with 291 additions and 201 deletions
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24
sys/arch/i386/stand/lib/exec.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: exec.c,v 1.6 1999/01/28 20:21:24 christos Exp $ */
/* $NetBSD: exec.c,v 1.7 1999/01/28 22:45:06 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1990, 1993
@ -89,7 +89,7 @@ exec_netbsd(file, loadaddr, boothowto)
int unit, part;
const char *filename;
int bootdevnr;
u_long marks[LOAD_MAX];
u_long marks[MARK_MAX];
struct btinfo_symtab btinfo_symtab;
#endif
@ -101,16 +101,16 @@ exec_netbsd(file, loadaddr, boothowto)
BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console));
marks[LOAD_START] = loadaddr;
if ((fd = loadfile(file, marks)) == -1)
marks[MARK_START] = loadaddr;
if ((fd = loadfile(file, marks, LOAD_ALL)) == -1)
goto out;
marks[LOAD_END] = (((u_long) marks[LOAD_END] + sizeof(int) - 1)) &
marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) &
(-sizeof(int));
btinfo_symtab.nsym = marks[LOAD_NSYM];
btinfo_symtab.ssym = marks[LOAD_SYM];
btinfo_symtab.esym = marks[LOAD_END];
btinfo_symtab.nsym = marks[MARK_NSYM];
btinfo_symtab.ssym = marks[MARK_SYM];
btinfo_symtab.esym = marks[MARK_END];
BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab));
boot_argv[0] = boothowto;
@ -159,18 +159,18 @@ exec_netbsd(file, loadaddr, boothowto)
bi_getbiosgeom();
#endif
boot_argv[2] = vtophys(bootinfo); /* old cyl offset */
boot_argv[3] = marks[LOAD_END];
boot_argv[3] = marks[MARK_END];
boot_argv[4] = getextmem();
boot_argv[5] = getbasemem();
close(fd);
#ifdef DEBUG
printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[LOAD_START],
marks[LOAD_NSYM], marks[LOAD_SYM], marks[LOAD_END]);
printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_START],
marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]);
#endif
startprog(marks[LOAD_START], BOOT_NARGS, boot_argv, 0x90000);
startprog(marks[MARK_START], BOOT_NARGS, boot_argv, 0x90000);
panic("exec returned");
out:

402
sys/arch/i386/stand/lib/loadfile.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: loadfile.c,v 1.1 1999/01/28 20:18:31 christos Exp $ */
/* $NetBSD: loadfile.c,v 1.2 1999/01/28 22:45:07 christos Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -75,8 +75,18 @@
* @(#)boot.c 8.1 (Berkeley) 6/10/93
*/
#ifndef INSTALLBOOT
#include <lib/libsa/stand.h>
#include <lib/libkern/libkern.h>
#else
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <err.h>
#endif
#include <sys/param.h>
#include <sys/exec.h>
@ -85,15 +95,15 @@
#ifdef BOOT_ECOFF
#include <sys/exec_ecoff.h>
static int coff_exec __P((int, struct ecoff_exechdr *, u_long *));
static int coff_exec __P((int, struct ecoff_exechdr *, u_long *, int));
#endif
#ifdef BOOT_ELF
#include <sys/exec_elf.h>
static int elf_exec __P((int, Elf_Ehdr *, u_long *));
static int elf_exec __P((int, Elf_Ehdr *, u_long *, int));
#endif
#ifdef BOOT_AOUT
#include <sys/exec_aout.h>
static int aout_exec __P((int, struct exec *, u_long *));
static int aout_exec __P((int, struct exec *, u_long *, int));
#endif
/*
@ -101,9 +111,10 @@ static int aout_exec __P((int, struct exec *, u_long *));
* Fill in entryp and endp.
*/
int
loadfile(fname, marks)
loadfile(fname, marks, flags)
const char *fname;
u_long *marks;
int flags;
{
union {
#ifdef BOOT_ECOFF
@ -122,39 +133,40 @@ loadfile(fname, marks)
/* Open the file. */
if ((fd = open(fname, 0)) < 0) {
(void)printf("open %s: %s\n", fname, strerror(errno));
WARN(("open %s", fname));
return -1;
}
/* Read the exec header. */
if ((nr = read(fd, &hdr, sizeof(hdr))) != sizeof(hdr)) {
(void)printf("read header: %s\n", strerror(errno));
WARN(("read header"));
goto err;
}
#ifdef BOOT_ECOFF
if (!ECOFF_BADMAG(&hdr.coff)) {
rval = coff_exec(fd, &hdr.coff, marks);
rval = coff_exec(fd, &hdr.coff, marks, flags);
} else
#endif
#ifdef BOOT_ELF
if (memcmp(Elf_e_ident, hdr.elf.e_ident, Elf_e_siz) == 0) {
rval = elf_exec(fd, &hdr.elf, marks);
rval = elf_exec(fd, &hdr.elf, marks, flags);
} else
#endif
#ifdef BOOT_AOUT
if (N_GETMAGIC(hdr.aout) == ZMAGIC &&
if (OKMAGIC(N_GETMAGIC(hdr.aout)) &&
N_GETMID(hdr.aout) == MID_MACHINE) {
rval = aout_exec(fd, &hdr.aout, marks);
rval = aout_exec(fd, &hdr.aout, marks, flags);
} else
#endif
{
rval = 1;
(void)printf("%s: unknown executable format\n", fname);
errno = EFTYPE;
WARN(("%s", fname));
}
if (rval == 0)
(void)printf("=0x%lx\n", marks[LOAD_END] - marks[LOAD_START]);
PROGRESS(("=0x%lx\n", marks[MARK_END] - marks[MARK_START]));
return fd;
err:
(void)close(fd);
@ -163,62 +175,73 @@ err:
#ifdef BOOT_ECOFF
static int
coff_exec(fd, coff, marks)
coff_exec(fd, coff, marks, flags)
int fd;
struct ecoff_exechdr *coff;
u_long *marks;
int flags;
{
paddr_t ffp_save;
paddr_t ffp_save = marks[MARK_START];
/* Read in text. */
(void)printf("%lu", coff->a.tsize);
if (lseek(fd, ECOFF_TXTOFF(coff), SEEK_SET) == -1) {
(void)printf("lseek text: %s\n", strerror(errno));
WARN(("lseek text"));
return (1);
}
if (READ(fd, coff->a.text_start, coff->a.tsize) !=
coff->a.tsize) {
(void)printf("read text: %s\n", strerror(errno));
return (1);
if (flags & LOAD_TEXT) {
PROGRESS(("%lu", coff->a.tsize));
if (READ(fd, coff->a.text_start, ffp_save, coff->a.tsize) !=
coff->a.tsize) {
WARN(("read text"));
return (1);
}
}
/* Read in data. */
if (coff->a.dsize != 0) {
(void)printf("+%lu", coff->a.dsize);
if (READ(fd, coff->a.data_start, coff->a.dsize) !=
coff->a.dsize) {
(void)printf("read data: %s\n", strerror(errno));
else {
if (lseek(fd, coff->a.tsize, SEEK_CUR) == -1) {
WARN(("read text"));
return (1);
}
}
/* Zero out bss. */
if (coff->a.bsize != 0) {
(void)printf("+%lu", coff->a.bsize);
BZERO(coff->a.bss_start, coff->a.bsize);
/* Read in data. */
if (coff->a.dsize != 0 && (flags & LOAD_DATA)) {
PROGRESS(("+%lu", coff->a.dsize));
if (READ(fd, coff->a.data_start, ffp_save, coff->a.dsize) !=
coff->a.dsize) {
WARN(("read data"));
return (1);
}
}
/* Zero out bss. */
if (coff->a.bsize != 0 && (flags & LOAD_BSS)) {
PROGRESS(("+%lu", coff->a.bsize));
BZERO(coff->a.bss_start, ffp_save, coff->a.bsize);
}
#ifndef INSTALLBOOT
ffp_save = coff->a.text_start + coff->a.tsize;
if (ffp_save < coff->a.data_start + coff->a.dsize)
ffp_save = coff->a.data_start + coff->a.dsize;
if (ffp_save < coff->a.bss_start + coff->a.bsize)
ffp_save = coff->a.bss_start + coff->a.bsize;
#endif
marks[LOAD_START] = LOADADDR(coff->a.entry);
marks[LOAD_NSYM] = 1; /* XXX: Kernel needs >= 0 */
marks[LOAD_SYM] = LOADADDR(ffp_save);
marks[LOAD_END] = LOADADDR(ffp_save);
marks[MARK_START] = LOADADDR(coff->a.entry);
marks[MARK_NSYM] = 1; /* XXX: Kernel needs >= 0 */
marks[MARK_SYM] = LOADADDR(ffp_save);
marks[MARK_END] = LOADADDR(ffp_save);
return (0);
}
#endif /* BOOT_ECOFF */
#ifdef BOOT_ELF
static int
elf_exec(fd, elf, marks)
elf_exec(fd, elf, marks, flags)
int fd;
Elf_Ehdr *elf;
u_long *marks;
int flags;
{
Elf_Shdr *shp;
Elf_Off off;
@ -226,18 +249,18 @@ elf_exec(fd, elf, marks)
size_t sz;
int first = 1;
int havesyms;
paddr_t ffp_save = marks[LOAD_START], shp_save;
paddr_t ffp_save = marks[MARK_START], shp_save;
vaddr_t elf_save;
for (i = 0; i < elf->e_phnum; i++) {
Elf_Phdr phdr;
if (lseek(fd, elf->e_phoff + sizeof(phdr) * i, SEEK_SET)
== -1) {
(void)printf("lseek phdr: %s\n", strerror(errno));
WARN(("lseek phdr"));
return (1);
}
if (read(fd, (void *)&phdr, sizeof(phdr)) != sizeof(phdr)) {
(void)printf("read phdr: %s\n", strerror(errno));
WARN(("read phdr"));
return (1);
}
if (phdr.p_type != Elf_pt_load ||
@ -245,25 +268,31 @@ elf_exec(fd, elf, marks)
continue;
/* Read in segment. */
(void)printf("%s%lu", first ? "" : "+", (u_long)phdr.p_filesz);
PROGRESS(("%s%lu", first ? "" : "+", (u_long)phdr.p_filesz));
if (lseek(fd, phdr.p_offset, SEEK_SET) == -1) {
(void)printf("lseek text: %s\n", strerror(errno));
WARN(("lseek text"));
return (1);
}
if (READ(fd, phdr.p_vaddr, phdr.p_filesz) !=
phdr.p_filesz) {
(void)printf("read text: %s\n", strerror(errno));
return (1);
/* XXX: Assume text comes before data! */
if ((first && (flags & LOAD_TEXT)) ||
(!first && (flags & LOAD_DATA))) {
if (READ(fd, phdr.p_vaddr, ffp_save, phdr.p_filesz) !=
phdr.p_filesz) {
WARN(("read text"));
return (1);
}
}
#ifndef INSTALLBOOT
if (first || ffp_save < phdr.p_vaddr + phdr.p_memsz)
ffp_save = phdr.p_vaddr + phdr.p_memsz;
#endif
/* Zero out bss. */
if (phdr.p_filesz < phdr.p_memsz) {
(void)printf("+%lu",
(u_long)(phdr.p_memsz - phdr.p_filesz));
BZERO((phdr.p_vaddr + phdr.p_filesz),
if (phdr.p_filesz < phdr.p_memsz && (flags & LOAD_BSS)) {
PROGRESS(("+%lu",
(u_long)(phdr.p_memsz - phdr.p_filesz)));
BZERO((phdr.p_vaddr + phdr.p_filesz), ffp_save,
phdr.p_memsz - phdr.p_filesz);
}
first = 0;
@ -272,105 +301,112 @@ elf_exec(fd, elf, marks)
* Copy the ELF and section headers.
*/
ffp_save = roundup(ffp_save, sizeof(long));
elf_save = ffp_save;
ffp_save += sizeof(Elf_Ehdr);
if (lseek(fd, elf->e_shoff, SEEK_SET) == -1) {
(void)printf("lseek section headers: %s\n", strerror(errno));
return (1);
}
sz = elf->e_shnum * sizeof(Elf_Shdr);
shp = alloc(sz);
if (read(fd, shp, sz) != sz) {
(void)printf("read section headers: %s\n", strerror(errno));
return (1);
if (flags & LOAD_HDR) {
elf_save = ffp_save;
ffp_save += sizeof(Elf_Ehdr);
}
shp_save = ffp_save;
ffp_save += roundup(sz, sizeof(long));
/*
* Now load the symbol sections themselves. Make sure the
* sections are aligned. Don't bother with string tables if
* there are no symbol sections.
*/
off = roundup((sizeof(Elf_Ehdr) + sz), sizeof(long));
for (havesyms = i = 0; i < elf->e_shnum; i++)
if (shp[i].sh_type == Elf_sht_symtab)
havesyms = 1;
for (first = 1, i = 0; i < elf->e_shnum; i++) {
if (shp[i].sh_type == Elf_sht_symtab ||
shp[i].sh_type == Elf_sht_strtab) {
(void)printf("%s%ld", first ? " [" : "+",
(u_long)shp[i].sh_size);
if (havesyms) {
if (lseek(fd, shp[i].sh_offset, SEEK_SET)
== -1) {
(void)printf("\nlseek symbols: %s\n",
strerror(errno));
free(shp, sz);
return (1);
}
if (READ(fd, ffp_save, shp[i].sh_size)
!= shp[i].sh_size) {
(void)printf("\nread symbols: %s\n",
strerror(errno));
free(shp, sz);
return (1);
}
}
ffp_save += roundup(shp[i].sh_size, sizeof(long));
shp[i].sh_offset = off;
off += roundup(shp[i].sh_size, sizeof(long));
first = 0;
if (flags & LOAD_SYM) {
if (lseek(fd, elf->e_shoff, SEEK_SET) == -1) {
WARN(("lseek section headers"));
return (1);
}
}
BCOPY(shp, shp_save, sz);
free(shp, sz);
sz = elf->e_shnum * sizeof(Elf_Shdr);
if (first == 0)
(void)printf("]");
shp = ALLOC(sz);
if (read(fd, shp, sz) != sz) {
WARN(("read section headers"));
return (1);
}
shp_save = ffp_save;
ffp_save += roundup(sz, sizeof(long));
/*
* Now load the symbol sections themselves. Make sure the
* sections are aligned. Don't bother with string tables if
* there are no symbol sections.
*/
off = roundup((sizeof(Elf_Ehdr) + sz), sizeof(long));
for (havesyms = i = 0; i < elf->e_shnum; i++)
if (shp[i].sh_type == Elf_sht_symtab)
havesyms = 1;
for (first = 1, i = 0; i < elf->e_shnum; i++) {
if (shp[i].sh_type == Elf_sht_symtab ||
shp[i].sh_type == Elf_sht_strtab) {
PROGRESS(("%s%ld", first ? " [" : "+",
(u_long)shp[i].sh_size));
if (havesyms) {
if (lseek(fd, shp[i].sh_offset,
SEEK_SET)
== -1) {
WARN(("lseek symbols"));
FREE(shp, sz);
return (1);
}
if (READ(fd, ffp_save, ffp_save,
shp[i].sh_size) != shp[i].sh_size) {
WARN(("read symbols"));
FREE(shp, sz);
return (1);
}
}
ffp_save += roundup(shp[i].sh_size,
sizeof(long));
shp[i].sh_offset = off;
off += roundup(shp[i].sh_size, sizeof(long));
first = 0;
}
}
BCOPY(shp, shp_save, shp_save, sz);
FREE(shp, sz);
if (first == 0)
PROGRESS(("]"));
}
/*
* Frob the copied ELF header to give information relative
* to elf_save.
*/
elf->e_phoff = 0;
elf->e_shoff = sizeof(Elf_Ehdr);
elf->e_phentsize = 0;
elf->e_phnum = 0;
BCOPY(elf, elf_save, sizeof(*elf));
if (flags & LOAD_HDR) {
elf->e_phoff = 0;
elf->e_shoff = sizeof(Elf_Ehdr);
elf->e_phentsize = 0;
elf->e_phnum = 0;
BCOPY(elf, elf_save, elf_save, sizeof(*elf));
}
marks[LOAD_START] = LOADADDR(elf->e_entry);
marks[LOAD_NSYM] = 1; /* XXX: Kernel needs >= 0 */
marks[LOAD_SYM] = LOADADDR(elf_save);
marks[LOAD_END] = LOADADDR(ffp_save);
marks[MARK_START] = LOADADDR(elf->e_entry);
marks[MARK_NSYM] = 1; /* XXX: Kernel needs >= 0 */
marks[MARK_SYM] = LOADADDR(elf_save);
marks[MARK_END] = LOADADDR(ffp_save);
return (0);
}
#endif /* BOOT_ELF */
#ifdef BOOT_AOUT
static int
aout_exec(fd, x, marks)
aout_exec(fd, x, marks, flags)
int fd;
struct exec *x;
u_long *marks;
int flags;
{
u_long entry = x->a_entry;
paddr_t ffp_save, aout_save;
paddr_t ffp_save, aout_save = 0;
int cc;
if (marks[LOAD_START] == 0)
if (marks[MARK_START] == 0)
ffp_save = ALIGNENTRY(entry);
else
ffp_save = marks[LOAD_START];
ffp_save = marks[MARK_START];
if (lseek(fd, sizeof(*x), SEEK_SET) == -1) {
(void)printf("lseek a.out: %s\n", strerror(errno));
WARN(("lseek text"));
return 1;
}
@ -379,88 +415,100 @@ aout_exec(fd, x, marks)
* The kernel may use this to verify that the
* symbols were loaded by this boot program.
*/
BCOPY(x, ffp_save, sizeof(*x));
ffp_save += sizeof(*x);
if (flags & LOAD_HDR) {
BCOPY(x, ffp_save, ffp_save, sizeof(*x));
ffp_save += sizeof(*x);
}
/*
* Read in the text segment.
*/
if (flags & LOAD_TEXT) {
PROGRESS(("%ld", x->a_text));
(void)printf("%ld", x->a_text);
if (READ(fd, ffp_save, x->a_text - sizeof(*x)) !=
x->a_text - sizeof(*x)) {
(void)printf("read text: %s\n", strerror(errno));
return 1;
if (READ(fd, ffp_save, ffp_save, x->a_text - sizeof(*x)) !=
x->a_text - sizeof(*x)) {
WARN(("read text"));
return 1;
}
ffp_save += x->a_text - sizeof(*x);
} else {
if (lseek(fd, x->a_text - sizeof(*x), SEEK_CUR) == -1) {
WARN(("seek text"));
return (1);
}
}
ffp_save += x->a_text - sizeof(*x);
/*
* Read in the data segment.
*/
if (flags & LOAD_DATA) {
PROGRESS(("+%ld", x->a_data));
(void)printf("+%ld", x->a_data);
if (READ(fd, ffp_save, x->a_data) != x->a_data) {
(void)printf("read data: %s\n", strerror(errno));
return 1;
if (READ(fd, ffp_save, ffp_save, x->a_data) != x->a_data) {
WARN(("read data"));
return 1;
}
ffp_save += x->a_data;
}
ffp_save += x->a_data;
/*
* Zero out the BSS section.
* (Kernel doesn't care, but do it anyway.)
*/
if (flags & LOAD_BSS) {
PROGRESS(("+%ld", x->a_bss));
(void)printf("+%ld", x->a_bss);
BZERO(ffp_save, x->a_bss);
ffp_save += x->a_bss;
BZERO(ffp_save, ffp_save, x->a_bss);
ffp_save += x->a_bss;
}
/*
* Read in the symbol table and strings.
* (Always set the symtab size word.)
*/
BCOPY(&x->a_syms, ffp_save, sizeof(x->a_syms));
ffp_save += sizeof(x->a_syms);
aout_save = ffp_save;
if (flags & LOAD_SYM) {
BCOPY(&x->a_syms, ffp_save, ffp_save, sizeof(x->a_syms));
ffp_save += sizeof(x->a_syms);
aout_save = ffp_save;
if (x->a_syms > 0) {
/* Symbol table and string table length word. */
if (x->a_syms > 0) {
/* Symbol table and string table length word. */
(void)printf("+[%ld", x->a_syms);
PROGRESS(("+[%ld", x->a_syms));
if (READ(fd, ffp_save, x->a_syms) != x->a_syms) {
(void)printf("read symbols: %s\n", strerror(errno));
return 1;
if (READ(fd, ffp_save, ffp_save, x->a_syms) !=
x->a_syms) {
WARN(("read symbols"));
return 1;
}
ffp_save += x->a_syms;
read(fd, &cc, sizeof(cc));
BCOPY(&cc, ffp_save, ffp_save, sizeof(cc));
ffp_save += sizeof(cc);
/* String table. Length word includes itself. */
PROGRESS(("+%d]", cc));
cc -= sizeof(int);
if (cc <= 0) {
WARN(("symbol table too short"));
return 1;
}
if (READ(fd, ffp_save, ffp_save, cc) != cc) {
WARN(("read strings"));
return 1;
}
ffp_save += cc;
}
ffp_save += x->a_syms;
read(fd, &cc, sizeof(cc));
BCOPY(&cc, ffp_save, sizeof(cc));
ffp_save += sizeof(cc);
/* String table. Length word includes itself. */
(void)printf("+%d]", cc);
cc -= sizeof(int);
if (cc <= 0) {
(void)printf("symbol table too short\n");
return 1;
}
if (READ(fd, ffp_save, cc) != cc) {
(void)printf("read strings: %s\n", strerror(errno));
return 1;
}
ffp_save += cc;
}
marks[LOAD_START] = LOADADDR(entry);
marks[LOAD_NSYM] = x->a_syms;
marks[LOAD_SYM] = LOADADDR(aout_save);
marks[LOAD_END] = LOADADDR(ffp_save);
marks[MARK_START] = LOADADDR(entry);
marks[MARK_NSYM] = x->a_syms;
marks[MARK_SYM] = LOADADDR(aout_save);
marks[MARK_END] = LOADADDR(ffp_save);
return 0;
}

66
sys/arch/i386/stand/lib/loadfile.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: loadfile.h,v 1.1 1999/01/28 20:18:31 christos Exp $ */
/* $NetBSD: loadfile.h,v 1.2 1999/01/28 22:45:07 christos Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -40,19 +40,61 @@
#define BOOT_ELF
#define ELFSIZE 32
#define LOADADDR(a) ((u_long)(a) & 0x00ffffff)
#define ALIGNENTRY(a) ((u_long)(a) & 0x00100000)
#define READ(f, b, c) pread((f), (void *)LOADADDR(b), (c))
#define BCOPY(s, d, c) vpbcopy((s), (void *)LOADADDR(d), (c))
#define BZERO(d, c) pbzero((void *)LOADADDR(d), (c))
/*
* Array indices in the u_long position array
*/
#define MARK_START 0
#define MARK_NSYM 1
#define MARK_SYM 2
#define MARK_END 3
#define MARK_MAX 4
int loadfile __P((const char *, u_long *));
#define LOAD_START 0
#define LOAD_NSYM 1
#define LOAD_SYM 2
#define LOAD_END 3
#define LOAD_MAX 4
/*
* Bit flags for sections to load
*/
#define LOAD_TEXT 0x01
#define LOAD_DATA 0x02
#define LOAD_BSS 0x04
#define LOAD_SYM 0x08
#define LOAD_HDR 0x10
#define LOAD_ALL 0x1f
int loadfile __P((const char *, u_long *, int));
#ifndef INSTALLBOOT
#define LOADADDR(a) ((u_long)(a) & 0x00ffffff)
#define ALIGNENTRY(a) ((u_long)(a) & 0x00100000)
#define READ(f, b, v, c) pread((f), (void *)LOADADDR(b), (c))
#define BCOPY(s, d, v, c) vpbcopy((s), (void *)LOADADDR(d), (c))
#define BZERO(d, v, c) pbzero((void *)LOADADDR(d), (c))
#define WARN(a) (void)(printf a, \
printf((errno ? ": %s\n" : "\n"), \
strerror(errno)))
#define PROGRESS(a) (void) printf a
#define ALLOC(a) alloc(a)
#define FREE(a, b) free(a, b)
#define OKMAGIC(a) ((a) == NMAGIC)
void vpbcopy __P((const void *, void *, size_t));
void pbzero __P((void *, size_t));
ssize_t pread __P((int, void *, size_t));
#else
#define LOADADDR(a) ((u_long)(a))
#define ALIGNENTRY(a) ((u_long)(a))
#define READ(f, b, v, c) vread((u_long)(f), (b), &(v), (c))
#define BCOPY(s, d, v, c) vcopy((u_long)(s), (d), &(v), (c))
#define BZERO(d, v, c) vzero((u_long)(d), &(v), (c))
#define WARN(a) warn a
#define PROGRESS(a) /* nothing */
#define ALLOC(a) malloc(a)
#define FREE(a, b) free(a)
#define OKMAGIC(a) ((a) == OMAGIC)
ssize_t vread __P((int, u_long, u_long *, size_t));
void vcopy __P((u_long, u_long, u_long *, size_t));
void vzero __P((u_long, u_long *, size_t));
#endif