tope@enea.se (Tommy Petersson) (04/30/91)
I have a problem with an application on a HP9000. Two different libraries must be linked to the application, and both have the same symbol defined. No linking. The symbol in at least one of the libraries is not used externally, so it seems possible to solve the problem by changing all occurences with a patch program. Is one included somewhere on a HP9000? (I'm new to this machine, and HP/Sweden isn't of much help). If not, where can I find a program that let me change the symbol? email answers to: tope@enea.se Tommy Petersson
tml@tik.vtt.fi (Tor Lillqvist) (05/01/91)
In article <3276@enea.se> tope@enea.se (Tommy Petersson) writes:
I have a problem with an application on a HP9000. Two different
libraries must be linked to the application, and both have the same
symbol defined. No linking.
The symbol in at least one of the libraries is not used externally,
so it seems possible to solve the problem by changing all occurences
with a patch program.
Use the -r and -h options to ld(1).
--
Tor Lillqvist,
working, but not speaking, for the Technical Research Centre of Finlandmjs@hpfcso.FC.HP.COM (Marc Sabatella) (05/06/91)
> The symbol in at least one of the libraries is not used externally, > so it seems possible to solve the problem by changing all occurences > with a patch program. > >Use the -r and -h options to ld(1). More particularly, if by "not used externally" you mean it isn't used outside of the particular object file within the library, then you can extract that module, run it through "ld -r -h symbolname", and then replace the module in the library: ar x library.a module.o ld -r -h symbol module.o mv a.out module.o ar r library.a module.o This will hide the symbol from other modules, ensuring that it does not conflict with the other symbol of the same name. However, if by "not used externally" you mean that it isn't used outside the library, but is used within the library, this won't work - the other modules within the library won't be able to access the symbol. If there are only a few modules involved, you might consider extracting them, linking them all together with "ld -r -h", putting the new combined file back into the archive, and then deleting the original versions from the library. If that isn't feasible, then you will indeed need some sort of byte editor. You should extract each affected module, patch them, and replace them in the library. You can use "nm" to find which modules within the library define and use the symbol. There is no binrary editor supplied with HP-UX that I am aware of, but Emacs has a binary mode. Also, there is generally only one occurence of the symbol name in the file, at least on the Series 300 and 400; it shouldn't be terribly difficult to write a program to find it, hack it, and write it back out. -------------- Marc Sabatella (marc@hpmonk.fc.hp.com) Disclaimers: 2 + 2 = 3, for suitably small values of 2 Bill and Dave may not always agree with me
franks@hpuamsa.neth.hp.com (Frank Slootweg CRC) (05/10/91)
Marc Sabatella writes :
> There is no binrary editor supplied with HP-UX that I am aware of, ...
There is sure no binrary editor in HP-UX and not even a binary editor,
but often "vis" and "inv" can be used for simple binary edit operations.
See VIS(1) for details. If needed I can probably dig up some examples
(but give me some time because I am not smart enough to event my own
ones).
Hope this helps.
Frank "Eye neffer cpel ennythink vronk" Slootweg, Dutch CRC.