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authordg <dg@FreeBSD.org>1994-09-24 21:37:01 +0000
committerdg <dg@FreeBSD.org>1994-09-24 21:37:01 +0000
commitfb2315b514e7cdc01b255928ad1080588b11c813 (patch)
tree9c7c8b41af7860c14d28089f92f1a9d43a6b8400 /sys/i386/include/exec.h
parent35a3c11775776c931b00aaff61724960482b18dc (diff)
downloadFreeBSD-src-fb2315b514e7cdc01b255928ad1080588b11c813.zip
FreeBSD-src-fb2315b514e7cdc01b255928ad1080588b11c813.tar.gz
Shuffled macros and definitions around to facilitate architecture
independance.
Diffstat (limited to 'sys/i386/include/exec.h')
-rw-r--r--sys/i386/include/exec.h112
1 files changed, 2 insertions, 110 deletions
diff --git a/sys/i386/include/exec.h b/sys/i386/include/exec.h
index 15f40c7..c08283f 100644
--- a/sys/i386/include/exec.h
+++ b/sys/i386/include/exec.h
@@ -31,120 +31,12 @@
* SUCH DAMAGE.
*
* @(#)exec.h 8.1 (Berkeley) 6/11/93
- * $Id: exec.h,v 1.3 1994/08/02 07:38:45 davidg Exp $
+ * $Id: exec.h,v 1.4 1994/08/09 14:39:56 jkh Exp $
*/
#ifndef _EXEC_H_
#define _EXEC_H_
-#if defined(hp300) || defined(i386)
-#define __LDPGSZ 4096
-#endif
-#if defined(tahoe) || defined(vax)
-#define __LDPGSZ 1024
-#endif
-
-#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) & ~(__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
- */
-
-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 0407 /* old impure format */
-#define NMAGIC 0410 /* read-only text */
-#define ZMAGIC 0413 /* demand load format */
-#define QMAGIC 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_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_DYNAMIC 0x20 /* a.out contains run-time link-edit info */
+#define __LDPGSZ 4096
#endif /* !_EXEC_H_ */
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