for IBM AIX powerpc architecture, because I couldn't find a __ppc__ or __powerpc__ defined by gcc on AIX. Is it correct to use _POWER?
Sounds right, sometimes the macros don't have the trailing "__". As always because we don't know why you need the processor architecture we can't advise you more.
As a couple of suggestions you may be trying to find out if you are big or little endian, or perhaps 32 or 64 bit.
In the first case for macros like "_BYTE_ORDER", "_LITTLE_ENDIAN" and "_BIG_ENDIAN".
In the second case look for macros like _LP64 or __LP64__ or even "_WIN64".
This may end up long winded but worth it in the long run, I have a single file I extend as I test more architectures.
Can anybody help me in finding out a solution for the problem below?
When we write .unix or .sh files in windows OS and port them to Unix platforms there is a character ^M inserted at the end of each line of the script file.
During ftp porting I set the transfer mode as ASCII for the script... (7 Replies)
I'm a completely noob to Unix. I have previously managed quite well Windows OS's but never Unix.
-My question is quite simple:
I've been investigating what's the easiest and most complex Unix OS. However, it seems there are quite a couple of OS's from which to choose, like: -Darwin
... (3 Replies)
i have to select particular fields from a multiple line record.
my record is in dump.txt file and looks like this
*******************
tipo = abonado simplex, Idiomas = dic1 - none, Operador = estandar
Serv. portadora admitido: modem
ind = 0 numero telefonico = 79260960, att = 0... (1 Reply)
hellow everyone,
iam a new user to linux and i have question about unix os. unix is operating system or platform iam confused. i have read some article about unix but i haven't found the answer what iam searching for. so iam confused in this topic can anyone made it clear. Any types of... (8 Replies)
Hi,
I am just confused about these three things which are shown in the output of uname command. I am running RH lINUX 9.0 on hardware having Intel HT CPU. My uname shows
uname -p i686 (processor)
uname -m i686 (machine)
uname -i i386 (hardware)
I was about to ... (1 Reply)
I'm converting a binary file to ASCII using c code.
The folllowing block of code prints correct double value 00000.000000000 on HPUNIX platform.
longi double;
/* C79 - Price Per Minute */
memcpy(&longi,&rbuff,8);
fprintf(wfp,"%015.9f ",longi);
prints : 00000.000000000
... (6 Replies)
Discussion started by: krk
6 Replies
LEARN ABOUT OPENDARWIN
types
TYPES(5) BSD File Formats Manual TYPES(5)NAME
types -- system data types
SYNOPSIS
#include <sys/types.h>
DESCRIPTION
The file sys/types.h contains the defined data types used in the kernel (most are used through out the system).
#ifndef _TYPES_H_
#define _TYPES_H_
typedef short dev_t;
#ifndef _POSIX_SOURCE
/* major part of a device */
#define major(x) ((int)(((unsigned)(x)>>8)&0377))
/* minor part of a device */
#define minor(x) ((int)((x)&0377))
/* make a device number */
#define makedev(x,y) ((dev_t)(((x)<<8) | (y)))
#endif
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
typedef unsigned short ushort; /* Sys V compatibility */
#include <machine/ansi.h>
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
#include <machine/types.h>
#endif
#ifdef _CLOCK_T_
typedef _CLOCK_T_ clock_t;
#undef _CLOCK_T_
#endif
#ifdef _SIZE_T_
typedef _SIZE_T_ size_t;
#undef _SIZE_T_
#endif
#ifdef _TIME_T_
typedef _TIME_T_ time_t;
#undef _TIME_T_
#endif
#ifndef _POSIX_SOURCE
typedef struct _uquad { unsigned long val[2]; } u_quad;
typedef struct _quad { long val[2]; } quad;
#endif
typedef long * qaddr_t; /* should be typedef quad * qaddr_t; */
typedef long daddr_t;
typedef char * caddr_t;
typedef u_long ino_t;
typedef long swblk_t;
typedef long segsz_t;
typedef long off_t;
typedef u_short uid_t;
typedef u_short gid_t;
typedef short pid_t;
typedef u_short nlink_t;
typedef u_short mode_t;
typedef u_long fixpt_t;
#ifndef _POSIX_SOURCE
#define NBBY 8 /* number of bits in a byte */
/*
* Select uses bit masks of file descriptors in longs. These macros
* manipulate such bit fields (the filesystem macros use chars).
* FD_SETSIZE may be defined by the user, but the default here should
* be >= NOFILE (param.h).
*/
#ifndef FD_SETSIZE
#define FD_SETSIZE 1024
#endif
typedef long fd_mask;
#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
typedef struct fd_set {
fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
} fd_set;
#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
#endif /* !_POSIX_SOURCE */
#endif /* !_TYPES_H_ */
SEE ALSO fs(5), time(3), lseek(2), adb(1)HISTORY
A types file appeared in Version 7 AT&T UNIX.
Darwin AUGUST 2, 2001 Darwin