debug dlopen returning NULL

Question

joel2001k OP

Created May ’24

Replies 1

Boosts 0

Participants 2

Hi,

For the very same plugin dlopen() sometimes fails. The library is present but sometimes it returns NULL and sometimes a valid plugin handle.

Here is the code:

char *filename;
void *plugin_so;

filename = "/Applications/com.example.MyApp/Contents/Plugins/myplugin.dylib";

plugin_so = dlopen(filename,
		               RTLD_NOW);

I have debugged using lldb checked filename and it is present.

The myplugin.dylib file supports 2 architectures, arm64 and x86_64.

regards, Joël

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Answer 1

joel2001k OP

May ’24

Accepted Answer

man dyld and check for debugging environment variables to turn on diagnostics. Check for failed initializers helped me.

Actually 2 libraries the plugin was using were not found.

problem fixed.

by, Joël

1