At Thu, 25 Sep 2008 13:13:14 +0300, Motti Daniel wrote:
Hello people!
I'm working on an Alsa plugin for the Xandros Linux distribution my plugin runs very well except it consume about 20% of resources from the target machine (eee pc at 1.6Ghz) I'm trying to compile the same code with Intel Compiler (version 10.1.017) (before that it was compiled with gcc 4.1.2) the plugin compiles well but when I try to play music it tells me that the plugin library (the .so file in /usr/lib/alsa-lib/ is not there.
What exactly is the error message? It's a big difference between non-existing file and non-defined symbol.
I tried to analyze the symbols in the executable and found that the difference between gcc and Intel compiler is a list of symbols with a suffix __FUNCTION__ or __PRETTY_FUNCTION__ is this the problem?
I don't think so. These should be replaced at compile time, and you must get relevant compile errors/warnings.
any suggestions? can you tell me what are the minimum alsa requirements from a dynamic library so it can be loaded and run as an Alsa plugin?
First, check whether your plugin was properly opened and symbol resolution worked. The alsa-lib calls snd_dlopen() to open the plugin, and call snd_dlsym() for symbols. Catch them via gdb or so.
There are configure checks for dlopen, etc, defining CONFIG_HAVE_LIBDL. Make sure that this passed in your case.
Takashi