Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Create a lib from a c program
Top Forums Programming Create a lib from a c program Post 31228 by Perderabo on Monday 4th of November 2002 02:45:05 PM
Old 11-04-2002
I'm not sure, but I'll take a guess. I am also assuming that:
you are using /opt/SUNWspro/bin/cc for your compiler.
you are using a 32 bit address space
you are using a sparc chip
but you are not using a sparc v9

If those assumptions are correct, it looks like this might work...

cc -KPIC x.c
cc -KPIC y.c
cc -KPIC z.c
ld -G -Bdynamic -o libxyx.so x.o y.o z.o

I don't have a decent compiler on a 5.6 so I can't test this. But it's close. In your case, you say you have only a single module, so you would have only one cc. But that is very rare with a library. So I'm showing a more normal case where you would combine several modules into a library.

To generalize this more use on many versions on unix, you typically would use a makefile. The "-KPIC" would be in a variable so it could be changed as you moved from one version to another. Ditto for the "-G -Bdynamic".

This link is the Linker and Libraries Guide, which you might want to look at. Also look at the man page for your compiler. Sun has several things called cc so you need to get the MANPATH right or you will be looking at the wrong one.

If this doesn't work, try replacing -KPIC with -Kpic.
 

10 More Discussions You Might Find Interesting

1. Programming

HOw to load dynamic lib from a statically linked program ?

I need to load a dynamic library from a statically linked program. Is there a way without recompiling my program. when i try to do that my program just crashes. If not possible, how can I avoid crashing the program when i try to load the dynamic lib, again without recompiling. If my... (1 Reply)
Discussion started by: disclaimer
1 Replies

2. Programming

Using a C program to create directories in UNIX

Aloha, I'm attempting to use a C program to create directories and then use a system call to have another program write .dat files into that directory. I understand that I could use the "system("mkdir directory_name")" function however, I would like my program to create a new directory each time... (3 Replies)
Discussion started by: aloha_boi
3 Replies

3. Programming

How to create a new unix user in through a c program

Hi , I want to create a new user using c program not with unix adduser command . is it possible to write a cprogram to create a new user account , it should accept username , grouid , group name and all other privilages . i can use system calls inside c program to do this . i will... (5 Replies)
Discussion started by: naren_chella
5 Replies

4. Shell Programming and Scripting

create a .dll using cygwin and a .lib

Hi, I inherited a .lib file that I need to use to make a .dll file from a c++ file. I am able to do this in visual studio but I can not do this using cygwin. I would like to build the dll using the commandline in order to create a make file. Can someone help me. I would really appreciate it. ... (0 Replies)
Discussion started by: lsoleyma
0 Replies

5. Programming

create sound using C program

I could not recall the function in C to generate diff type of sounds. Can somebody help me out. (2 Replies)
Discussion started by: bishweshwar
2 Replies

6. Shell Programming and Scripting

Shell Program to create a RPM name

Hi Guru,s/Geek,s I need help to create RPM names from rpms. Example : a2ps-4.14-6.fc10.i386 perl-Email-Find-0.10-2.fc10.noarch directfb-1.2.7-2.fc10.i386 libid3tag-0.15.1b-7.fc10.i386 apr-util-1.3.7-1.fc10.i386 libquicktime-1.0.3-4.fc10.i386 The Desired Output is : a2ps... (2 Replies)
Discussion started by: anand.linux1984
2 Replies

7. Red Hat

ls: /lib/libattr.so.1: no version information available (required by /lib/libacl.so.1)

Hello, I'm experimenting a problem on my rh server. Red Hat Enterprise Linux AS release 3 (Taroon Update 8) 2.4.21-47.ELsmp #1 SMP i686 i686 i386 GNU/Linux It started with a segmentation fault on #id root To resolve it, I've installed coreutils-4.5.3-28.4.i386.rpm But, I... (6 Replies)
Discussion started by: gogol_bordello
6 Replies

8. Programming

Can I create a shared object by using an static lib?

for example, I have a static lib name liba.a it offers some interface such a1();a2(); but i do not have the source code of liba.a; If i would like to create a shared object, and offer the similar interface of a1 and a2; Is there a way to fulfill such requirement? thanks. (7 Replies)
Discussion started by: flost
7 Replies

9. Homework & Coursework Questions

create a program that runs two processes linked oven

I need help program in C... :create a program that runs two processes linked oven (1 Reply)
Discussion started by: gizmo16
1 Replies

10. Shell Programming and Scripting

Create a program illustrating SUID

To understand SUID feature, I set SUID bit for a SHELL script. Then I executed the program by a different user. In order to understand how it works, I tried different ways like: 1) I didn't give execute permission for the other user (not an owner) and then he tried to execute it. 2) I... (15 Replies)
Discussion started by: ravisingh
15 Replies

LEARN ABOUT DEBIAN

extutils::f77

F77(3pm)						User Contributed Perl Documentation						  F77(3pm)

NAME

       ExtUtils::F77 - Simple interface to F77 libs

DESCRIPTION

       This module tries to figure out how to link C programs with Fortran subroutines on your system. Basically one must add a list of Fortran
       runtime libraries. The problem is their location and name varies with each OS/compiler combination!

       This module tries to implement a simple 'rule-of-thumb' database for various flavours of UNIX systems.  A simple self-documenting Perl
       database of knowledge/code for figuring out how to link for various combinations of OS and compiler is embedded in the modules Perl code.
       Please help save the world by sending database entries for your system to karl_pgplot@mac.com

       Note the default on most systems is now to search for a generic 'GNU' compiler which can be g77, gfortran or g95 and then find the
       appropriate link libraries automatically. (This is the 'Generic' 'GNU' database entry in the code.)

       The library list which the module returns can be explicitly overridden by setting the environment variable F77LIBS, e.g.

	 % setenv F77LIBS "-lfoo -lbar"
	 % perl Makefile.PL
	 ...

SYNOPSIS

	 use ExtUtils::F77;		  # Automatic guess
	 use ExtUtils::F77 qw(sunos);	  # Specify system
	 use ExtUtils::F77 qw(linux g77); # Specify system and compiler
	 $fortranlibs = ExtUtils::F77->runtime;

METHODS

       The following methods are provided:

       o   runtime

	   Returns a list of F77 runtime libraries.

	     $fortranlibs = ExtUtils::F77->runtime;

       o   runtimeok

	   Returns TRUE only if runtime libraries have been found successfully.

       o   trail_

	   Returns true if F77 names have trailing underscores.

       o   compiler

	   Returns command to execute the compiler (e.g. 'f77').

       o   cflags

	   Returns compiler flags.

       o   testcompiler

	   Test to see if compiler actually works.

       More methods  will probably be added in the future.

AUTHOR

       Karl Glazebrook (karlglazebrook@mac.com).

perl v5.10.1							    2011-01-01								  F77(3pm)
All times are GMT -4. The time now is 09:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy