macros and "struct exec" in exec_aout.h now
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deraadt
parent
801938e714
commit
9a0a9573a1
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@ -1,4 +1,4 @@
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/* $NetBSD: exec.h,v 1.42 1994/06/29 06:44:04 cgd Exp $ */
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/* $NetBSD: exec.h,v 1.43 1994/07/01 01:30:26 deraadt Exp $ */
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/*-
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* Copyright (c) 1994 Christopher G. Demetriou
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@ -42,53 +42,7 @@
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* @(#)exec.h 8.3 (Berkeley) 1/21/94
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*/
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/*
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* Header prepended to each a.out file.
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* only manipulate the a_midmag field via the
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* N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
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*/
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struct exec {
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u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
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u_long a_text; /* text segment size */
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u_long a_data; /* initialized data size */
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u_long a_bss; /* uninitialized data size */
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u_long a_syms; /* symbol table size */
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u_long a_entry; /* entry point */
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u_long a_trsize; /* text relocation size */
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u_long a_drsize; /* data relocation size */
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};
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/* a_magic */
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#define OMAGIC 0407 /* old impure format */
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#define NMAGIC 0410 /* read-only text */
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#define ZMAGIC 0413 /* demand load format */
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#define QMAGIC 0314 /* "compact" demand load format; deprecated */
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/*
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* a_mid - keep sorted in numerical order for sanity's sake
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* ensure that: 0 < mid < 0x3ff
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*/
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#define MID_ZERO 0 /* unknown - implementation dependent */
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#define MID_SUN010 1 /* sun 68010/68020 binary */
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#define MID_SUN020 2 /* sun 68020-only binary */
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#define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
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#define MID_HP200 200 /* hp200 (68010) BSD binary */
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#define MID_I386 134 /* i386 BSD binary */
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#define MID_M68K 135 /* m68k BSD binary with 8K page sizes */
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#define MID_M68K4K 136 /* m68k BSD binary with 4K page sizes */
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#define MID_NS32532 137 /* ns32532 */
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#define MID_SPARC 138 /* sparc */
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#define MID_PMAX 139 /* pmax */
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#define MID_VAX 140 /* vax */
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#define MID_ALPHA 141 /* Alpha BSD binary */
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#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
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#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
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#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
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/*
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* a_flags
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*/
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#define EX_DYNAMIC 0x20 /* a.out contains run-time link-edit info */
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#include <machine/exec.h>
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/*
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* The following structure is found at the top of the user stack of each
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@ -256,3 +210,5 @@ extern int nexecs;
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extern int exec_maxhdrsz;
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#endif /* KERNEL */
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#include <sys/exec_aout.h>
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@ -1,4 +1,4 @@
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/* $NetBSD: exec_aout.h,v 1.6 1994/06/29 06:44:05 cgd Exp $ */
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/* $NetBSD: exec_aout.h,v 1.7 1994/07/01 01:30:28 deraadt Exp $ */
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/*
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* Copyright (c) 1993, 1994 Christopher G. Demetriou
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@ -30,6 +30,128 @@
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef N_PAGSIZ
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#define N_PAGSIZ(ex) (__LDPGSZ)
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#endif
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/*
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* Header prepended to each a.out file.
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* only manipulate the a_midmag field via the
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* N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
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*/
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struct exec {
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u_long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
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u_long a_text; /* text segment size */
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u_long a_data; /* initialized data size */
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u_long a_bss; /* uninitialized data size */
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u_long a_syms; /* symbol table size */
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u_long a_entry; /* entry point */
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u_long a_trsize; /* text relocation size */
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u_long a_drsize; /* data relocation size */
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};
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/* a_magic */
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#define OMAGIC 0407 /* old impure format */
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#define NMAGIC 0410 /* read-only text */
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#define ZMAGIC 0413 /* demand load format */
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#define QMAGIC 0314 /* "compact" demand load format; deprecated */
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/*
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* a_mid - keep sorted in numerical order for sanity's sake
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* ensure that: 0 < mid < 0x3ff
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*/
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#define MID_ZERO 0 /* unknown - implementation dependent */
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#define MID_SUN010 1 /* sun 68010/68020 binary */
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#define MID_SUN020 2 /* sun 68020-only binary */
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#define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
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#define MID_HP200 200 /* hp200 (68010) BSD binary */
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#define MID_I386 134 /* i386 BSD binary */
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#define MID_M68K 135 /* m68k BSD binary with 8K page sizes */
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#define MID_M68K4K 136 /* m68k BSD binary with 4K page sizes */
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#define MID_NS32532 137 /* ns32532 */
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#define MID_SPARC 138 /* sparc */
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#define MID_PMAX 139 /* pmax */
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#define MID_VAX 140 /* vax */
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#define MID_ALPHA 141 /* Alpha BSD binary */
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#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
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#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
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#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
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/*
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* a_flags
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*/
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#define EX_DYNAMIC 0x20 /* a.out contains run-time link-edit info */
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/*
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* The a.out structure's a_midmag field is a network-byteorder encoding
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* of this int
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* FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
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* Where `F' is 6 bits of flag like EX_DYNAMIC,
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* `m' is 10 bits of machine-id like MID_I386, and
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* `M' is 16 bits worth of magic number, ie. ZMAGIC.
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* The macros below will set/get the needed fields.
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*/
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#define N_GETMAGIC(ex) \
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( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
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#define N_GETMAGIC2(ex) \
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( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
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(((ex).a_midmag) | 0x10000) )
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#define N_GETMID(ex) \
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( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
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#define N_GETFLAG(ex) \
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( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
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#define N_SETMAGIC(ex,mag,mid,flag) \
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( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
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(((mag)&0xffff)) ) )
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#define N_ALIGN(ex,x) \
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(N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
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((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
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/* Valid magic number check. */
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#define N_BADMAG(ex) \
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(N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
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N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
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/* Address of the bottom of the text segment. */
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#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)
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/* Address of the bottom of the data segment. */
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#define N_DATADDR(ex) \
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(N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
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(N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1))
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/* Address of the bottom of the bss segment. */
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#define N_BSSADDR(ex) \
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(N_DATADDR(ex) + (ex).a_data)
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/* Text segment offset. */
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#define N_TXTOFF(ex) \
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( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
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0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : \
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sizeof(struct exec)) )
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/* Data segment offset. */
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#define N_DATOFF(ex) \
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N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
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/* Text relocation table offset. */
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#define N_TRELOFF(ex) \
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(N_DATOFF(ex) + (ex).a_data)
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/* Data relocation table offset. */
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#define N_DRELOFF(ex) \
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(N_TRELOFF(ex) + (ex).a_trsize)
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/* Symbol table offset. */
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#define N_SYMOFF(ex) \
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(N_DRELOFF(ex) + (ex).a_drsize)
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/* String table offset. */
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#define N_STROFF(ex) \
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(N_SYMOFF(ex) + (ex).a_syms)
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#ifdef KERNEL
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/* the "a.out" format's entry in the exec switch */
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