exec_type = 2;
str = "kludge";
}
- else if (len > sizeof (struct exec) && !N_BADMAG ((*(pu.aout))))
- {
- entry_addr = (entry_func) pu.aout->a_entry;
-
- if (type == KERNEL_TYPE_NONE)
- {
- /*
- * If it doesn't have a Multiboot header, then presume
- * it is either a FreeBSD or NetBSD executable. If so,
- * then use a magic number of normal ordering, ZMAGIC to
- * determine if it is FreeBSD.
- *
- * This is all because freebsd and netbsd seem to require
- * masking out some address bits... differently for each
- * one... plus of course we need to know which booting
- * method to use.
- */
- entry_addr = (entry_func) ((int) entry_addr & 0xFFFFFF);
-
- if (buffer[0] == 0xb && buffer[1] == 1)
- {
- type = KERNEL_TYPE_FREEBSD;
- cur_addr = (int) entry_addr;
- str2 = "FreeBSD";
- }
- else
- {
- type = KERNEL_TYPE_NETBSD;
- cur_addr = (int) entry_addr & 0xF00000;
- if (N_GETMAGIC ((*(pu.aout))) != NMAGIC)
- align_4k = 0;
- str2 = "NetBSD";
- }
- }
-
- /* first offset into file */
- grub_seek (N_TXTOFF (*(pu.aout)));
- text_len = pu.aout->a_text;
- data_len = pu.aout->a_data;
- bss_len = pu.aout->a_bss;
-
- if (cur_addr < 0x100000)
- errnum = ERR_BELOW_1MB;
-
- exec_type = 1;
- str = "a.out";
- }
else if (lh->boot_flag == BOOTSEC_SIGNATURE
&& lh->setup_sects <= LINUX_MAX_SETUP_SECTS)
{
-
/*-
* Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
+ * The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * from: @(#)exec.h 8.1 (Berkeley) 6/11/93
- * $Id$
- */
-/*
- * 11/23/95 - Kludge to get "ntohl" null macro added. -- ESB
- * - and for __LDPGSZ
+ * from: @(#)exec.h 8.1 (Berkeley) 6/11/93
+ * $FreeBSD$
*/
-#ifndef _IMGACT_AOUT_H_
-#define _IMGACT_AOUT_H_
-
-/* XXX ESB */
-#define ntohl(x) ((x << 24) | ((x & 0xFF00) << 8) \
- | ((x >> 8) & 0xFF00) | (x >> 24))
-#define htonl(x) ntohl(x)
-#define __LDPGSZ 0x1000
-
-#define N_GETMAGIC(ex) \
- ( (ex).a_midmag & 0xffff )
-#define N_GETMID(ex) \
- ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETMID_NET(ex) : \
- ((ex).a_midmag >> 16) & 0x03ff )
-#define N_GETFLAG(ex) \
- ( (N_GETMAGIC_NET(ex) == ZMAGIC) ? N_GETFLAG_NET(ex) : \
- ((ex).a_midmag >> 26) & 0x3f )
-#define N_SETMAGIC(ex,mag,mid,flag) \
- ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
- ((mag) & 0xffff) )
-
-#define N_GETMAGIC_NET(ex) \
- (ntohl((ex).a_midmag) & 0xffff)
-#define N_GETMID_NET(ex) \
- ((ntohl((ex).a_midmag) >> 16) & 0x03ff)
-#define N_GETFLAG_NET(ex) \
- ((ntohl((ex).a_midmag) >> 26) & 0x3f)
-#define N_SETMAGIC_NET(ex,mag,mid,flag) \
- ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
- (((mag)&0xffff)) ) )
-
-#define N_ALIGN(ex,x) \
- (N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC || \
- N_GETMAGIC_NET(ex) == ZMAGIC || N_GETMAGIC_NET(ex) == QMAGIC ? \
- ((x) + __LDPGSZ - 1) & ~(unsigned long)(__LDPGSZ - 1) : (x))
-
-/* Valid magic number check. */
-#define N_BADMAG(ex) \
- (N_GETMAGIC(ex) != OMAGIC && N_GETMAGIC(ex) != NMAGIC && \
- N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC && \
- N_GETMAGIC_NET(ex) != OMAGIC && N_GETMAGIC_NET(ex) != NMAGIC && \
- N_GETMAGIC_NET(ex) != ZMAGIC && N_GETMAGIC_NET(ex) != QMAGIC)
-
-
-/* Address of the bottom of the text segment. */
-#define N_TXTADDR(ex) \
- ((N_GETMAGIC(ex) == OMAGIC || N_GETMAGIC(ex) == NMAGIC || \
- N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
-
-/* Address of the bottom of the data segment. */
-#define N_DATADDR(ex) \
- N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
-
-/* Text segment offset. */
-#define N_TXTOFF(ex) \
- (N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : (N_GETMAGIC(ex) == QMAGIC || \
- N_GETMAGIC_NET(ex) == ZMAGIC) ? 0 : sizeof(struct exec))
-
-/* Data segment offset. */
-#define N_DATOFF(ex) \
- N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
-
-/* Relocation table offset. */
-#define N_RELOFF(ex) \
- N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
-
-/* Symbol table offset. */
-#define N_SYMOFF(ex) \
- (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
-
-/* String table offset. */
-#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
-
-/*
- * Header prepended to each a.out file.
- * only manipulate the a_midmag field via the
- * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
- */
+#ifndef GRUB_AOUT_HEADER
+#define GRUB_AOUT_HEADER 1
struct exec
- {
- unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
- unsigned long a_text; /* text segment size */
- unsigned long a_data; /* initialized data size */
- unsigned long a_bss; /* uninitialized data size */
- unsigned long a_syms; /* symbol table size */
- unsigned long a_entry; /* entry point */
- unsigned long a_trsize; /* text relocation size */
- unsigned long a_drsize; /* data relocation size */
- };
-#define a_magic a_midmag /* XXX Hack to work with current kern_execve.c */
-
-/* a_magic */
-#define OMAGIC 0x107 /* 0407 old impure format */
-#define NMAGIC 0x108 /* 0410 read-only text */
-#define ZMAGIC 0x10b /* 0413 demand load format */
-#define QMAGIC 0xcc /* 0314 "compact" demand load format */
-
-/* a_mid */
-#define MID_ZERO 0 /* unknown - implementation dependent */
-#define MID_SUN010 1 /* sun 68010/68020 binary */
-#define MID_SUN020 2 /* sun 68020-only binary */
-#define MID_I386 134 /* i386 BSD binary */
-#define MID_SPARC 138 /* sparc */
-#define MID_HP200 200 /* hp200 (68010) BSD binary */
-#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
-#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
-#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
-
-/*
- * a_flags
- */
-#define EX_PIC 0x10 /* contains position independant code */
-#define EX_DYNAMIC 0x20 /* contains run-time link-edit info */
-#define EX_DPMASK 0x30 /* mask for the above */
-
-#endif /* !_IMGACT_AOUT_H_ */
+{
+ unsigned int a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
+ unsigned int a_text; /* text segment size */
+ unsigned int a_data; /* initialized data size */
+ unsigned int a_bss; /* uninitialized data size */
+ unsigned int a_syms; /* symbol table size */
+ unsigned int a_entry; /* entry point */
+ unsigned int a_trsize; /* text relocation size */
+ unsigned int a_drsize; /* data relocation size */
+};
+
+#endif /* ! GRUB_AOUT_HEADER */
projects / thirdparty / grub.git / commitdiff
