This question shows research effort; it is useful and clear
165
Save this question.
Show activity on this post.
So I've been trying to get dynamic libraries to work in my XCode project under Mac OS X. So far no joy.
I am able to load the dylib file, but when I call dlsym to get the function pointer, it returns 0 and dlerror says symbol not found.
So I am wondering if there is a simple way to list the symbols that are exported from a dylib file. Any ideas would be great.
16.3k15 gold badges89 silver badges138 bronze badges
asked Dec 22, 2010 at 4:18
For example:
nm -gU /usr/local/Cellar/cairo/1.12.16/lib/cairo/libcairo-trace.0.dylib
From man 1 nm:
-g Display only global (external) symbols. -U Don't display undefined symbols.
43.1k11 gold badges109 silver badges162 bronze badges
answered Dec 22, 2010 at 4:23
4 Comments
Under OS X Leopard (10.5, yeah, I know...) you should use nm -gu , i.e. the -u option is lowercase.
man 1 nm is self-contained and will continue working when command line changes :p
@MK. man 1 nm lists a lot of things one can do with nm. Again, it's an external resource one can read through to discover a solution, but not a solution itself to the requested “a simple way to list the symbols that are exported from a dylib file”. “nm -gU ….dylib” is, however.
How about for macOS frameworks:/System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
2 Comments
On new macOS, otool -T will show otool: -T functionality obsolete use objdump -t
While it's true that otool -T reports functionality obsolete in newer OS X, it's also true that (for dynamic libraries) objdump -t will report The file was not recognized as a valid object file.
Use nm -a your.dylib
It will print all the symbols including globals
answered Aug 29, 2013 at 7:00
Comments
Use Mach-OView for viewing all the Symbols in dylib
answered Jun 3, 2016 at 11:14
2 Comments
I was excited to have learned of this GUI but it crashed for me after I loaded a dylib. I'm using macOS Mojave.
Explore related questions
See similar questions with these tags.