Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Use variable in object library (ar) Post 302346118 by justinpark01 on Friday 21st of August 2009 04:56:40 AM
Old 08-21-2009
Use variable in object library (ar)

I am trying to use a library, lets say libexample.a, and I want to use a variable within the object files that were archived. For example, my new code (which is linked to the library, don't worry about that) wants to access an integer from the original source.

When I use the nm command on libexample.a I see a bunch of stuff, including:
000006ec b var$39.0

I want use that variable. I know its original name and try to call it with my new code but it fails. I have no problem accessing the functions within libexample.a, I just want to use that integer. Or maybe it just isn't possible?

Thanks in advance for any help.

Last edited by justinpark01; 08-21-2009 at 09:00 AM..
 

9 More Discussions You Might Find Interesting

1. AIX

Shared Object library problem

Hi, When using shared objects on AIX 4.3 i am getting runtime problems. I have a small sample program which links to a shared object libray, oracle and system related libraries. At runtime it fails (gives segmentation fault and coredump ) in one proc file when executing login statement. But... (0 Replies)
Discussion started by: suman_jakkula
0 Replies

2. Programming

getting "mi_cmd_var_create: unable to create variable object" error msg

Hi, i am working in C in Fedora Eclipse 3.3.0 with gdb debugger. I am geting segmentation fault with an error message "mi_cmd_var_create: unable to create variable object" on debugging the program. What should I do to solve this problem? rgds, Dona_m (14 Replies)
Discussion started by: dona_m
14 Replies

3. UNIX for Dummies Questions & Answers

Object reference not set to an instance of an object

I am new to PHP and UNIX. I am using Apache to do my testing on a Windows Vista machine. I am getting this error when I am trying to connect to a web service. I did a search and did not see any posts that pertain to this. Here is my function: <?php function TRECSend($a, $b, $c, $d,... (0 Replies)
Discussion started by: EddiRae
0 Replies

4. Shell Programming and Scripting

How to change a Makefile from building static library to shared library?

Hi: I have a library that it only offers Makefile for building static library. It built libxxx.a file. How do I in any way build a shared library? (either changin the Makefile or direct script or command to build shared library) Thanks. (1 Reply)
Discussion started by: cpthk
1 Replies

5. UNIX for Dummies Questions & Answers

How to obtain list of object files in a shared (dynamic) library?

How can I simply obtain a list of the object files in a shared (dynamic) library. I am looking for the equivalent of "ar -t <lib>" for archived (static) libraries. Thanks in advance. :rolleyes: ---------- Post updated at 01:47 PM ---------- Previous update was at 12:16 PM ---------- The... (1 Reply)
Discussion started by: chatieremerrill
1 Replies

6. Programming

Symbol differences in STLport library and application object file

Hello, I compiled the object file of a binary and i could see the symbol , "void*std::__node_alloc<1,0>::_M_allocate(unsigned)", this is actually present as "void*std::__node_alloc<true,0>::_M_allocate(unsigned)" in the libstlport4.so.1 . This has been verified with "nm -C " command Please... (4 Replies)
Discussion started by: shafi2all
4 Replies

7. Linux

./configure problem for libsf library due to apparently missing libdb library.

Hello, ./configure script fails to configure libsf. Please check the following last few lines of configure script error. checking for db1/db.h... no checking for db.h... yes checking for dbopen in -ldb1... no configure: error: No libdb? No libsf. But find command shows the following; ... (4 Replies)
Discussion started by: vectrum
4 Replies

8. AIX

Add shared members from library to same library in a different directory

I'm trying to install libiconv to AIX 7.1 from an rpm off of the perzl site. The rpm appears to install but I get this error message. add shr4.o shared members from /usr/lib/libiconv.a to /opt/freeware/lib/libiconv.a add shr.o shared members from /usr/lib/libiconv.a to ... (5 Replies)
Discussion started by: kneemoe
5 Replies

9. Programming

How to initialize an object with another object of different class?

How to initialize an object of class say "A", with an object of type say "B". The following code give the error message "error: conversion from âAâ to non-scalar type âBâ requested" #include <iostream> using namespace std; class B; class A{ public: A() { cout <<"\nA()" << endl; } ... (1 Reply)
Discussion started by: techmonk
1 Replies
lorder(1)							   User Commands							 lorder(1)

NAME
lorder - find ordering relation for an object or library archive SYNOPSIS
lorder filename... DESCRIPTION
The input is one or more object or library archive filenames (see ar(1)). The standard output is a list of pairs of object file or archive member names; the first file of the pair refers to external identifiers defined in the second. The output may be processed by tsort(1) to find an ordering of a library suitable for one-pass access by ld. Note that the link editor ld is capable of multiple passes over an ar- chive in the portable archive format (see ar.h(3HEAD)) and does not require that lorder be used when building an archive. The usage of the lorder command may, however, allow for a more efficient access of the archive during the link edit process. The following example builds a new library from existing .o files. ar -cr library `lorder *.o | tsort` FILES
TMPDIR/*symref temporary files TMPDIR/*symdef temporary files TMPDIR usually /var/tmp but can be redefined by setting the environment variable TMPDIR (see tempnam() in tmpnam(3C)) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWbtool | +-----------------------------+-----------------------------+ SEE ALSO
ar(1), ld(1), tsort(1), tmpnam(3C), ar.h(3HEAD), attributes(5) NOTES
lorder will accept as input any object or archive file, regardless of its suffix, provided there is more than one input file. If there is but a single input file, its suffix must be .o. The length of the filename for TMPDIR is limited to whatever sed allows. SunOS 5.11 29 Oct 1991 lorder(1)
All times are GMT -4. The time now is 09:20 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy