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..
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LEARN ABOUT HPUX
elf_version
elf_version(3E) elf_version(3E)
NAME
elf_version() - coordinate ELF library and application versions
SYNOPSIS
Command: [flag]... file... [library]...
DESCRIPTION
As elf(3E) explains, the program, the library, and an object file have independent notions of the "latest" ELF version. lets a program
determine the ELF library's It further lets the program specify what memory types it uses by giving its own ver, to the library. Every
program that uses the ELF library must coordinate versions as described below.
The header file supplies the version to the program with the macro If the library's internal version (the highest version known to the
library) is lower than that known by the program itself, the library may lack semantic knowledge assumed by the program. Accordingly, will
not accept a working version unknown to the library.
Passing a ver equal to causes to return the library's internal version, without altering the working version. If ver is a version known to
the library, returns the previous (or initial) working version number. Otherwise, the working version remains unchanged and returns
EXAMPLES
The following excerpt from an application program protects itself from using an older library.
if (elf_version(EV_CURRENT) == EV_NONE)
{
/* library out of date */
/* recover from error */
}
WARNINGS
The working version should be the same for all operations on a particular ELF descriptor. Changing the version between operations on a
descriptor will probably not give the expected results.
SEE ALSO
elf(3E), elf_begin(3E), elf_xlate(3E).
elf_version(3E)