Merge intel-deliver and amd-deliver "include" directories, and the

GDB include directory, all into a single include directory.

There are minor corresponding changes in a few files in bfd and gdb.
This commit is contained in:
John Gilmore 1991-04-25 04:20:18 +00:00
parent a07cc61341
commit bad3df6720
5 changed files with 141 additions and 302 deletions

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@ -1,12 +1,32 @@
#ifndef __A_OUT_GNU_H__
#define __A_OUT_GNU_H__
#include "target.h" /* Figure out which target and host systems */
#include "reloc.h"
#define __GNU_EXEC_MACROS__
#ifndef __STRUCT_EXEC_OVERRIDE__
/* This is the layout on disk of a Unix V7, Berkeley, SunOS, Vax Ultrix
"struct exec". Don't assume that on this machine, the "struct exec"
will lay out the same sizes or alignments. */
struct exec_bytes {
unsigned char a_info[4];
unsigned char a_text[4];
unsigned char a_data[4];
unsigned char a_bss[4];
unsigned char a_syms[4];
unsigned char a_entry[4];
unsigned char a_trsize[4];
unsigned char a_drsize[4];
};
/* How big the "struct exec" is on disk */
#define EXEC_BYTES_SIZE (8 * 4)
/* This is the layout in memory of a "struct exec" while we process it. */
struct exec
{
unsigned long a_info; /* Use macros N_MAGIC, etc for access */
@ -23,12 +43,12 @@ struct exec
/* these go in the N_MACHTYPE field */
/* These symbols could be defined by code from Suns...punt 'em */
#undef M_OLDSUN2
#undef M_UNKNOWN
#undef M_68010
#undef M_68020
#undef M_SPARC
enum machine_type {
M_OLDSUN2 = 0,
M_UNKNOWN = 0,
M_68010 = 1,
M_68020 = 2,
M_SPARC = 3,
@ -62,41 +82,30 @@ enum machine_type {
/* Code indicating demand-paged executable. */
#define ZMAGIC 0413
#define N_BADMAG(x) \
(N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
&& N_MAGIC(x) != ZMAGIC)
#define _N_BADMAG(x) \
(N_MAGIC(x) != OMAGIC && N_MAGIC(x) != NMAGIC \
&& N_MAGIC(x) != ZMAGIC)
#define _N_HDROFF(x) (1024 - sizeof (struct exec))
#define N_TXTOFF(x) \
(N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : sizeof (struct exec))
#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
/* Address of text segment in memory after it is loaded. */
/* Don't load things at zero, it encourages zero-pointer bugs */
#ifndef TEXT_START_ADDR
#define TEXT_START_ADDR 0x10000
#endif
#define N_TXTADDR(x) TEXT_START_ADDR
/* Virtual Address of text segment from the a.out file. For OMAGIC,
(almost always "unlinked .o's" these days), should be zero.
Sun added a kludge so that shared libraries linked ZMAGIC get
an address of zero if a_entry (!!!) is lower than the otherwise
expected text address. These kludges have gotta go!
For linked files, should reflect reality if we know it. */
#ifndef N_TXTADDR
#define N_TXTADDR(x) \
(N_MAGIC(x)==OMAGIC? 0 \
: (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \
: TEXT_START_ADDR)
#endif
/* Address of data segment in memory after it is loaded.
Note that it is up to you to define SEGMENT_SIZE
on machines not listed here. */
#ifndef SEGMENT_SIZE
#if defined(vax) || defined(hp300) || defined(pyr)
#if defined(hp300) || defined(pyr)
#define SEGMENT_SIZE page_size
#endif
#ifdef sony
@ -109,16 +118,11 @@ enum machine_type {
#define PAGE_SIZE 0x400
#define SEGMENT_SIZE PAGE_SIZE
#endif
#endif
#define _N_SEGMENT_ROUND(x) (((x) + SEGMENT_SIZE - 1) & ~(SEGMENT_SIZE - 1))
#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
#ifndef N_DATADDR
#define N_DATADDR(x) \
(N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \
: (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
(N_MAGIC(x)==OMAGIC? (N_TXTADDR(x)+(x).a_text) \
: (SEGMENT_SIZE + ((N_TXTADDR(x)+(x).a_text-1) & ~(SEGMENT_SIZE-1))))
#endif
/* Address of bss segment in memory after it is loaded. */
@ -182,38 +186,29 @@ struct nlist {
all of which apply to the text section.
Likewise, the data-relocation section applies to the data section. */
#if TARGET == TARGET_SPARC || TARGET == TARGET_AM29K
/*
* The following enum and struct were borrowed from
* sunOS /usr/include/sun4/a.out.h and extended to handle
* other machines.
*/
/* The following enum and struct were borrowed from SunOS's
/usr/include/sun4/a.out.h and extended to handle
other machines. It is currently used on SPARC and AMD 29000.
enum reloc_type
{
RELOC_8, RELOC_16, RELOC_32, RELOC_DISP8,
RELOC_DISP16, RELOC_DISP32, RELOC_WDISP30, RELOC_WDISP22,
RELOC_HI22, RELOC_22, RELOC_13, RELOC_LO10,
RELOC_SFA_BASE, RELOC_SFA_OFF13, RELOC_BASE10, RELOC_BASE13,
RELOC_BASE22, RELOC_PC10, RELOC_PC22, RELOC_JMP_TBL,
RELOC_SEGOFF16, RELOC_GLOB_DAT, RELOC_JMP_SLOT, RELOC_RELATIVE,
reloc_ext_bytes is how it looks on disk. reloc_info_extended is
how we might process it on a native host. */
/* 29K relocation types */
RELOC_JUMPTARG, RELOC_CONST, RELOC_CONSTH,
NO_RELOC
struct reloc_ext_bytes {
unsigned char r_address[4];
unsigned char r_index[3];
unsigned char r_bits[1];
unsigned char r_addend[4];
};
#define RELOC_TYPE_NAMES \
"8", "16", "32", "DISP8", \
"DISP16", "DISP32", "WDISP30", "WDISP22", \
"HI22", "22", "13", "LO10", \
"SFA_BASE", "SFAOFF13", "BASE10", "BASE13", \
"BASE22", "PC10", "PC22", "JMP_TBL", \
"SEGOFF16", "GLOB_DAT", "JMP_SLOT", "RELATIVE", \
"JUMPTARG", "CONST", "CONSTH", \
"NO_RELOC", \
"XXX_28", "XXX_29", "XXX_30", "XXX_31"
#define RELOC_EXT_BITS_EXTERN_BIG 0x80
#define RELOC_EXT_BITS_EXTERN_LITTLE 0x01
#define RELOC_EXT_BITS_TYPE_BIG 0x1F
#define RELOC_EXT_BITS_TYPE_SH_BIG 0
#define RELOC_EXT_BITS_TYPE_LITTLE 0xF8
#define RELOC_EXT_BITS_TYPE_SH_LITTLE 3
#define RELOC_EXT_SIZE 12 /* Bytes per relocation entry */
struct reloc_info_extended
{
@ -226,69 +221,35 @@ struct reloc_info_extended
long int r_addend;
};
/* Let programs know what they're dealing with */
#define RELOC_EXTENDED 1
/* The standard, old-fashioned, Berkeley compatible relocation struct */
#undef relocation_info
#define relocation_info reloc_info_extended
#define RELOC_ADDRESS(r) ((r)->r_address)
#define RELOC_EXTERN_P(r) ((r)->r_extern)
#define RELOC_TYPE(r) ((r)->r_index)
#define RELOC_EXTENDED_TYPE(r) ((r)->r_type)
#define RELOC_SYMBOL(r) ((r)->r_index)
#define RELOC_MEMORY_SUB_P(r) 0
#define RELOC_MEMORY_ADD_P(r) 0
#define RELOC_ADD_EXTRA(r) ((r)->r_addend)
#define RELOC_PCREL_P(r) \
( ((r)->r_type >= RELOC_DISP8 && (r)->r_type <= RELOC_WDISP22) \
|| (r)->r_type == RELOC_JUMPTARG )
#define RELOC_VALUE_RIGHTSHIFT(r) (reloc_target_rightshift[(r)->r_type])
#define RELOC_TARGET_SIZE(r) (reloc_target_size[(r)->r_type])
#define RELOC_TARGET_BITPOS(r) 0
#define RELOC_TARGET_BITSIZE(r) (reloc_target_bitsize[(r)->r_type])
/* Note that these are very dependent on the order of the enums in
enum reloc_type (in a.out.h); if they change the following must be
changed */
/* Also note that some of these may be incorrect; I have no information */
#ifndef __STDC__
#define const /**/
#endif
static const int reloc_target_rightshift[] = {
0, 0, 0, 0,
0, 0, 2, 2,
10, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
2, 0,16, /* 29K jumptarg, const, consth */
0,
};
#define RELOC_SIZE_SPLIT16 13
static const int reloc_target_size[] = {
0, 1, 2, 0,
1, 2, 2, 2,
2, 2, 2, 2,
2, 2, 2, 2,
2, 2, 2, 2,
2, 2, 2, 2,
RELOC_SIZE_SPLIT16, RELOC_SIZE_SPLIT16, RELOC_SIZE_SPLIT16,
0,
};
static const int reloc_target_bitsize[] = {
8, 16, 32, 8,
16, 32, 30, 22,
22, 22, 13, 10,
32, 32, 16, 0,
0, 0, 0, 0, /* dunno */
0, 0, 0, 0,
16, 16, 16, /* 29K jumptarg, const, consth */
0,
struct reloc_std_bytes {
unsigned char r_address[4];
unsigned char r_index[3];
unsigned char r_bits[1];
};
#define MAX_ALIGNMENT (sizeof (double))
#define RELOC_STD_BITS_PCREL_BIG 0x80
#define RELOC_STD_BITS_PCREL_LITTLE 0x01
#else /* Not SPARC or AM29K */
#define RELOC_STD_BITS_LENGTH_BIG 0x60
#define RELOC_STD_BITS_LENGTH_SH_BIG 5 /* To shift to units place */
#define RELOC_STD_BITS_LENGTH_LITTLE 0x06
#define RELOC_STD_BITS_LENGTH_SH_LITTLE 1
#define RELOC_STD_BITS_EXTERN_BIG 0x10
#define RELOC_STD_BITS_EXTERN_LITTLE 0x08
#define RELOC_STD_BITS_BASEREL_BIG 0x08
#define RELOC_STD_BITS_BASEREL_LITTLE 0x08
#define RELOC_STD_BITS_JMPTABLE_BIG 0x04
#define RELOC_STD_BITS_JMPTABLE_LITTLE 0x04
#define RELOC_STD_BITS_RELATIVE_BIG 0x02
#define RELOC_STD_BITS_RELATIVE_LITTLE 0x02
#define RELOC_STD_SIZE 8 /* Bytes per relocation entry */
struct relocation_info
{
@ -310,152 +271,13 @@ struct relocation_info
r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS
(the N_EXT bit may be set also, but signifies nothing). */
unsigned int r_extern:1;
/* Four bits that aren't used, but when writing an object file
it is desirable to clear them. */
unsigned int r_pad:4;
/* The next three bits are for SunOS shared libraries, and seem to
be undocumented. */
unsigned int r_baserel:1; /* Linkage table relative */
unsigned int r_jmptable:1; /* pc-relative to jump table */
unsigned int r_relative:1; /* "relative relocation" */
/* unused */
unsigned int r_pad:1; /* Padding -- set to zero */
};
#endif
/*
* Ok. Following are the relocation information macros. If your
* system should not be able to use the default set (below), you must
* define the following:
* relocation_info: This must be typedef'd (or #define'd) to the type
* of structure that is stored in the relocation info section of your
* a.out files. Often this is defined in the a.out.h for your system.
*
* RELOC_ADDRESS (rval): Offset into the current section of the
* <whatever> to be relocated. *Must be an lvalue*.
*
* RELOC_EXTERN_P (rval): Is this relocation entry based on an
* external symbol (1), or was it fully resolved upon entering the
* loader (0) in which case some combination of the value in memory
* (if RELOC_MEMORY_ADD_P) and the extra (if RELOC_ADD_EXTRA) contains
* what the value of the relocation actually was. *Must be an lvalue*.
*
* RELOC_TYPE (rval): If this entry was fully resolved upon
* entering the loader, what type should it be relocated as?
*
* RELOC_EXTENDED_TYPE (rval): If this entry is for a machine using
* extended relocatino, what type of field is it? (For example, on RISC
* machines, odd-sized displacements or split displacements occur.)
*
* RELOC_SYMBOL (rval): If this entry was not fully resolved upon
* entering the loader, what is the index of it's symbol in the symbol
* table? *Must be a lvalue*.
*
* RELOC_MEMORY_ADD_P (rval): This should return true if the final
* relocation value output here should be added to memory, or if the
* section of memory described should simply be set to the relocation
* value.
*
* RELOC_ADD_EXTRA (rval): (Optional) This macro, if defined, gives
* an extra value to be added to the relocation value based on the
* individual relocation entry. *Must be an lvalue if defined*.
*
* RELOC_PCREL_P (rval): True if the relocation value described is
* pc relative.
*
* RELOC_VALUE_RIGHTSHIFT (rval): Number of bits right to shift the
* final relocation value before putting it where it belongs.
*
* RELOC_TARGET_SIZE (rval): log to the base 2 of the number of
* bytes of size this relocation entry describes; 1 byte == 0; 2 bytes
* == 1; 4 bytes == 2, and etc. This is somewhat redundant (we could
* do everything in terms of the bit operators below), but having this
* macro could end up producing better code on machines without fancy
* bit twiddling. Also, it's easier to understand/code big/little
* endian distinctions with this macro.
*
* RELOC_TARGET_BITPOS (rval): The starting bit position within the
* object described in RELOC_TARGET_SIZE in which the relocation value
* will go.
*
* RELOC_TARGET_BITSIZE (rval): How many bits are to be replaced
* with the bits of the relocation value. It may be assumed by the
* code that the relocation value will fit into this many bits. This
* may be larger than RELOC_TARGET_SIZE if such be useful.
*
*
* Things I haven't implemented
* ----------------------------
*
* Values for RELOC_TARGET_SIZE other than 0, 1, or 2.
*
* Pc relative relocation for External references.
*/
#if TARGET == TARGET_SEQUENT
#define RELOC_ADDRESS(r) ((r)->r_address)
#define RELOC_EXTERN_P(r) ((r)->r_extern)
#define RELOC_TYPE(r) ((r)->r_symbolnum)
#define RELOC_SYMBOL(r) ((r)->r_symbolnum)
#define RELOC_MEMORY_SUB_P(r) ((r)->r_bsr)
#define RELOC_MEMORY_ADD_P(r) 1
#undef RELOC_ADD_EXTRA
#define RELOC_PCREL_P(r) ((r)->r_pcrel || (r)->r_bsr)
#define RELOC_VALUE_RIGHTSHIFT(r) 0
#define RELOC_TARGET_SIZE(r) ((r)->r_length)
#define RELOC_TARGET_BITPOS(r) 0
#define RELOC_TARGET_BITSIZE(r) 32
#endif
/* Default macros */
#ifndef RELOC_ADDRESS
#define RELOC_ADDRESS(r) ((r)->r_address)
#define RELOC_EXTERN_P(r) ((r)->r_extern)
#define RELOC_TYPE(r) ((r)->r_symbolnum)
#define RELOC_SYMBOL(r) ((r)->r_symbolnum)
#define RELOC_MEMORY_SUB_P(r) 0
#define RELOC_MEMORY_ADD_P(r) 1
#undef RELOC_ADD_EXTRA
#define RELOC_PCREL_P(r) ((r)->r_pcrel)
#define RELOC_VALUE_RIGHTSHIFT(r) 0
#define RELOC_TARGET_SIZE(r) ((r)->r_length)
#define RELOC_TARGET_BITPOS(r) 0
#define RELOC_TARGET_BITSIZE(r) 32
#endif
/* Maximum alignment required of a common'd variable. If a var of this
size or larger is allocated in BSS when nobody defines it, it gets
this alignment. */
#ifndef MAX_ALIGNMENT
#define MAX_ALIGNMENT (sizeof (int))
#endif
/* Definitions for routines that read and write GNU a.out files */
enum objfile_kind {
OBJFILE_ERROR,
OBJFILE_UNKNOWN,
OBJFILE_SINGLE,
OBJFILE_ARCHIVE,
};
enum objfile_kind read_aout_header(); /* (desc, &header) read&swap header */
/* Read an a.out header from DESC and call rel_fn(DESC, header)
if it is an object file, lib_fn(DESC) if it is a library, else
call err_fn("msg") */
void handle_aout_header(); /* (desc, rel_fn, lib_fn, err_fn) */
/* Byte-swapping definitions */
void swap_aoutheader(); /* BSD a.out header */
short swap_getshort ();
void swap_putshort();
long swap_getlong ();
void swap_putlong();
void swap_reloc_info_in(); /* BSD relocation information */
void swap_reloc_info_out(); /* BSD relocation information */
void swap_nlists(); /* BSD symbol name lists */
void swap_root_updates(); /* GDB Symseg */
/* Bring on the encapsulation, if configured in! */
#ifdef COFF_ENCAPSULATE
#include "a.out.encap.h"
#endif
#endif /* __A_OUT_GNU_H__ */

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@ -1,3 +1,6 @@
/* This file is obsolete. It needs to be converted to just define a bunch
of stuff that BFD can use to do coff-encapsulated files. --gnu@cygnus.com */
/* Another try at encapsulating bsd object files in coff.
Copyright (C) 1988, 1989, Free Software Foundation, Inc.
Written by Pace Willisson 12/9/88
@ -38,9 +41,6 @@
#include "a.out.gnu.h"
/* Figure out what our target machine is */
#include "target.h"
#define N_FLAGS_COFF_ENCAPSULATE 0x20 /* coff header precedes bsd header */
/* Describe the COFF header used for encapsulation. */

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@ -30,6 +30,9 @@
9 ; byte count of string table
"foo\0_bar\0" ; string table */
#define RANLIBMAG "__.SYMDEF" /* Archive file name containing index */
#define RANLIBSKEW 3 /* Creation time offset */
/* Format of __.SYMDEF:
First, a longword containing the size of the 'symdef' data that follows.
Second, zero or more 'symdef' structures.
@ -43,6 +46,9 @@ struct symdef
unsigned long string_offset; /* In the file */
char *name; /* In memory, sometimes */
} s;
/* this points to the front of the file header (AKA member header --
a struct ar_hdr), not to the front of the file or into the file).
in other words it only tells you which file to read */
unsigned long file_offset;
};
@ -50,6 +56,6 @@ struct symdef
#define ranlib symdef
#define ran_un s
#define ran_str string_offset
#define ran_strx string_offset
#define ran_name name
#define ran_off file_offset

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@ -38,6 +38,12 @@ __define_stab (N_LCSYM, 0x28, "LCSYM")
This is not used in C. */
__define_stab (N_MAIN, 0x2a, "MAIN")
/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */
__define_stab (N_NSYMS, 0x32, "NSYMS")
/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */
__define_stab (N_NOMAP, 0x34, "NOMAP")
/* Register variable. Value is number of register. */
__define_stab (N_RSYM, 0x40, "RSYM")
@ -59,7 +65,7 @@ __define_stab (N_ENTRY, 0xa4, "ENTRY")
Value is starting text address of the compilation. */
__define_stab (N_SO, 0x64, "SO")
/* Name of sub-source file.
/* Name of sub-source file (#include file).
Value is starting text address of the compilation. */
__define_stab (N_SOL, 0x84, "SOL")
@ -120,8 +126,13 @@ __define_stab (N_BROWS, 0x48, "BROWS")
/* GNU C++ exception stabs. */
/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2
and one is for C++. Still,... */
/* GNU C++ exception variable. Name is variable name. */
__define_stab (N_EHDECL, 0x50, "EHDECL")
/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */
__define_stab (N_MOD2, 0x50, "MOD2")
/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if
this entry is immediately followed by a CAUGHT stab saying what exception
@ -138,7 +149,6 @@ __define_stab (N_NBDATA, 0xF2, "NBDATA")
__define_stab (N_NBBSS, 0xF4, "NBBSS")
__define_stab (N_NBSTS, 0xF6, "NBSTS")
__define_stab (N_NBLCS, 0xF8, "NBLCS")
__define_stab (N_NSYMS, 0xFA, "NSYMS")
/* The above information, in matrix format.
@ -151,11 +161,11 @@ __define_stab (N_NSYMS, 0xFA, "NSYMS")
|_______________________________________________|
| 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM |
| 28 LCSYM | 2A MAIN | 2C | 2E |
| 30 PC | 32 | 34 | 36 |
| 30 PC | 32 NSYMS | 34 NOMAP | 36 |
| 38 | 3A | 3C | 3E |
| 40 RSYM | 42 M2C | 44 SLINE | 46 |
| 48 BROWS | 4A | 4C | 4E |
| 50 EHDECL | 52 | 54 CATCH | 56 |
| 50 EHDECL*| 52 | 54 CATCH | 56 |
| 58 | 5A | 5C | 5E |
| 60 SSYM | 62 | 64 SO | 66 DSLINE |
| 68 BSLINE | 6A | 6C | 6E |
@ -178,5 +188,6 @@ __define_stab (N_NSYMS, 0xFA, "NSYMS")
| F0 | F2 | F4 | F6 |
| F8 | FA | FC | FE LENG |
+-----------------------------------------------+
* 50 EHDECL is also MOD2.
*/

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@ -1,27 +1,27 @@
/* Define how to access the int that the wait system call stores.
This has been compatible in all Unix systems since time immemorial,
but various well-meaning people have defined various different
words for the same old bits in the same old int (sometimes claimed
to be a struct). We just know it's an int and we use these macros
to access the bits. */
/* Define how to access the structure that the wait system call stores.
On many systems, there is a structure defined for this.
But on vanilla-ish USG systems there is not. */
/* The following macros are defined equivalently to their definitions
in POSIX.1. We fail to define WNOHANG and WUNTRACED, which POSIX.1
<sys/wait.h> defines, since our code does not use waitpid(). We
also fail to declare wait() and waitpid(). */
#ifndef HAVE_WAIT_STRUCT
#define WAITTYPE int
#define WIFSTOPPED(w) (((w)&0377) == 0177)
#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
#define WIFEXITED(w) (((w)&0377) == 0)
#define WRETCODE(w) ((w) >> 8)
#define WSTOPSIG(w) ((w) >> 8)
#define WCOREDUMP(w) (((w)&0200) != 0)
#define WTERMSIG(w) ((w) & 0177)
#define WSETEXIT(w, status) ((w) = (status))
#define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))
#else
#include <sys/wait.h>
#define WAITTYPE union wait
#define WRETCODE(w) (w).w_retcode
#define WSTOPSIG(w) (w).w_stopsig
#define WCOREDUMP(w) (w).w_coredump
#define WTERMSIG(w) (w).w_termsig
#define WSETEXIT(w, status) ((w).w_status = (status))
#define WSETSTOP(w,sig) \
((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177)
#endif
#define WIFEXITED(w) (((w)&0377) == 0)
#define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
#define WIFSTOPPED(w) (((w)&0377) == 0177)
#define WEXITSTATUS(w) ((w) >> 8) /* same as WRETCODE */
#define WTERMSIG(w) ((w) & 0177)
#define WSTOPSIG(w) ((w) >> 8)
/* These are not defined in POSIX, but are used by our programs. */
#define WAITTYPE int
#define WCOREDUMP(w) (((w)&0200) != 0)
#define WSETEXIT(w,status) ((w) = (0 | ((status) << 8)))
#define WSETSTOP(w,sig) ((w) = (0177 | ((sig) << 8)))