Sponsored Content
Full Discussion: errno pb
Top Forums Programming errno pb Post 54234 by dts on Friday 6th of August 2004 05:11:11 AM
Old 08-06-2004
errno pb

Hello,

I need to make a lib with pthread, when I run my make file all is good. But when I run my test program, I test errno in the begining and is already set to 251. Is it normal ??? What can I modify in my Makefile to have errno set to 0 ???

Thanks

$make
gcc -D_REENTRANT -shared -fpic -lpthread gas_configuration.c gas_acquisition.c -o libgas_fifos.sl
gcc -L. -lgas_fifos testComm.c -o test
$./test
Begin
errno : 251
$
 

10 More Discussions You Might Find Interesting

1. Programming

Getting errno in a Multithreaded program

In Tru64 Unix, the 'errno' variable is not thread safe. Could anybody help me about how to make it thread safe or how to check 'errno' in a Multithreaded program ???? The Programming process is like this. There are some definite number of threads having their own task. There is one... (2 Replies)
Discussion started by: S.Vishwanath
2 Replies

2. Programming

Hi errno in sys/stat.h

How should I use errno in a c program and what info does it have . I am working with directories and files. So can any one tell me How to access errno?I am using the stat() function on \etc directory and I am alble to access only the half of the directories.I am not able to access other half and... (6 Replies)
Discussion started by: vijlak
6 Replies

3. Programming

errno

Hey, Can I assume that for certain function calls, errno can never be set to a certain value. More specifically, can I assume that for if the stat function call fails, the errno can never be or "No space left on device." I am assuming that a read function cannot fail because of no space... (5 Replies)
Discussion started by: the_learner
5 Replies

4. Programming

does perror() set errno?

here the program gives a odd result: #include <stdio.h> int main(){ perror("first"); perror("next"); return 0; } result: first: Success next: Illegal seek why? any resonable explanation? i found no information about this in man pages. thanks in advance (2 Replies)
Discussion started by: ebd
2 Replies

5. Programming

need help about get errno [ENXIO] for mmap

from mmap manpage I get it's errors discription: The addresses specified by the range [off, off + len) are invalid for filedes. How could I trigger a ENXIO ? anyone can input the code? Lei (3 Replies)
Discussion started by: yanglei_fage
3 Replies

6. Linux

[Errno 256] No more mirrors to try.

Dear all, CentOS 6 After executing "yum update -y" command I am facing this error. Please help me out. thanks in advance. Full error & error code is given as follow: ... (7 Replies)
Discussion started by: saqlain.bashir
7 Replies

7. Programming

Getpwnam_r returning null with errno 25

I am calling getpwnam_r with all proper argument as below:- rv = getpwnam_r(name, result, buffer, buflen); This program runs fine on sol 8/9/10. But on sol 11 it returns NULL with errno set to 25 (#define ENOTTY 25 /* Inappropriate ioctl for device */) All boxes are... (2 Replies)
Discussion started by: Ranajit
2 Replies

8. Programming

Function open() sets errno

I am opening a text file using open() system call in O_RDONLY mode. open() returns me a valid handler but also sets errno to 13 i.e. EACCES(Permission denied). Question is when open() is returning a valid handler then why does it sets the errno? Should not errno be set only in case of error... (10 Replies)
Discussion started by: rupeshkp728
10 Replies

9. UNIX for Dummies Questions & Answers

[Ultrix] /etc/init failed, errno 2

I am running the gxemul software under cygwin, Just when installing the .iso image, I got the error shown in the picture. Any ideas what's happening? Thanks Jack (1 Reply)
Discussion started by: lucky7456969
1 Replies

10. AIX

Errno.h symbols

Hi, I need to look at a recent copy of /usr/include/errno.h from AIX 7.2 to check some symbols. In particular, I'm curious if it defines EOWNERDEAD and ENOTRECOVERABLE. Can someone who has access to 7.2 please check for me? Thanks! (1 Reply)
Discussion started by: topcat
1 Replies
PERLDGUX(1)						 Perl Programmers Reference Guide					       PERLDGUX(1)

NAME
perldgux - Perl under DG/UX. SYNOPSIS
One can read this document in the following formats: man perldgux view perl perldgux explorer perldgux.html info perldgux to list some (not all may be available simultaneously), or it may be read as is: as README.dgux. DESCRIPTION
Perl 5.7/8.x for DG/UX ix86 R4.20MU0x BUILDING PERL ON DG
/UX Non-threaded Perl on DG/UX Just run ./Configure script from the top directory. Then give "make" to compile. Threaded Perl on DG/UX If you are using as compiler GCC-2.95.x rev(DG/UX) an easy solution for configuring perl in your DG/UX machine is to run the command: ./Configure -Dusethreads -Duseithreads -Dusedevel -des This will automatically accept all the defaults and in particular /usr/local/ as installation directory. Note that GCC-2.95.x rev(DG/UX) knows the switch -pthread which allows it to link correctly DG/UX's -lthread library. If you want to change the installation directory or have a standard DG/UX with C compiler GCC-2.7.2.x then you have no choice than to do an interactive build by issuing the command: ./Configure -Dusethreads -Duseithreads In particular with GCC-2.7.2.x accept all the defaults and *watch* out for the message: Any additional ld flags (NOT including libraries)? [ -pthread] Instead of -pthread put here -lthread. CGCC-2.7.2.x that comes with the DG/UX OS does NOT know the -pthread switch. So your build will fail if you choose the defaults. After configuration is done correctly give "make" to compile. Testing Perl on DG/UX Issuing a "make test" will run all the tests. If the test lib/ftmp-security gives you as a result something like lib/ftmp-security....File::Temp::_gettemp: Parent directory (/tmp/) is not safe (sticky bit not set when world writable?) at lib/ftmp-security.t line 100 don't panic and just set the sticky bit in your /tmp directory by doing the following as root: cd / chmod +t /tmp (=set the sticky bit to /tmp). Then rerun the tests. This time all must be OK. Installing the built perl on DG/UX Run the command "make install" AUTHOR
Takis Psarogiannakopoulos Universirty of Cambridge Centre for Mathematical Sciences Department of Pure Mathematics Wilberforce road Cambridge CB3 0WB , UK email <takis@XFree86.Org> SEE ALSO
perl(1). perl v5.12.1 2010-04-26 PERLDGUX(1)
All times are GMT -4. The time now is 12:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy