Re: dynamic library loading, missing symbols

2007-01-11 Thread [EMAIL PROTECTED]
On Jan 11, 3:40 am, "Ames Andreas" <[EMAIL PROTECTED]> wrote: > Have you already checked the output of LD_DEBUG=all or sth. like that? Yes, that is how I initially knew that my libraries were not even being processed when the linker tried to bind the symbol. On Jan 10, 5:01 pm, "Martin v. Löwis

RE: dynamic library loading, missing symbols

2007-01-11 Thread Ames Andreas
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > g] On Behalf Of [EMAIL PROTECTED] > Sent: Wednesday, January 10, 2007 8:52 PM > Subject: Re: dynamic library loading, missing symbols > > I suppose this means that any subsequent lib

Re: dynamic library loading, missing symbols

2007-01-10 Thread Martin v. Löwis
[EMAIL PROTECTED] schrieb: > I suppose this means that any subsequent libraries dlopened will not > see any of the symbols in my module? That's correct, and intentional. Python has crashed in the past when symbols conflicted across shared libraries. > I guess I'll have to look through the Python

Re: dynamic library loading, missing symbols

2007-01-10 Thread [EMAIL PROTECTED]
So, I did some searching and using python -v to run my code, I was able to see that my module was loaded by the python interpreter using dlopen("lib", 2). 2 is the RTLD_NOW flag, meaning that RTLD_LOCAL is assumed by the system. I suppose this means that any subsequent libraries dlopened will not

Re: dynamic library loading, missing symbols

2007-01-10 Thread [EMAIL PROTECTED]
> Did you verify, using nm -D, that the symbol is indeed present in > the shared object, not just in the source code? Yes, the symbol is found in the shared object when using nm. > What flags are given to that dlopen call? dlopen(lib, RTLD_NOW | RTLD_GLOBAL); > No. The dynamic linker doesn't s

RE: dynamic library loading, missing symbols

2007-01-10 Thread Ames Andreas
Some random notes below ... > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > g] On Behalf Of [EMAIL PROTECTED] > Sent: Wednesday, January 10, 2007 1:26 AM > Subject: dynamic library loading, missing symbols > > The reason for the complication is that I don't h

Re: dynamic library loading, missing symbols

2007-01-09 Thread Martin v. Löwis
[EMAIL PROTECTED] schrieb: > However, the linker fails at runtime here because it can't > find this symbol. The variable in question does exist in the C++ code > that in does dlopen. Did you verify, using nm -D, that the symbol is indeed present in the shared object, not just in the source code?