Debug tips - hewigovens/hewigovens.github.com GitHub Wiki

###Debug Framework:

• Build debug version framework.
• Set DYLD_FRAMEWORK_PATH in Xcode->Executable Info->Arguments.

###Debug dylib:

• Build debug version dylib
• otool -L *.app/Contents/MacOS/Test
• ln -s target debug dylib to what otool output
• Set DYLD_LIBRARY_PATH in Xcode->Executable Info->Arguments.

###Debug network:

• sudo defaults write /Library/Preferences/com.apple.networkd libnetcore_log_level -int 7
• syslog -w
• tcpdump/tcptrace
• rvictl -s <UUID> #remote packet capture

###Reference

• Technical Note TN2124 Mac OS X Debugging Magic

• man dyld or dyld(1) OS X Manual Page

    DYLD_FRAMEWORK_PATH
    DYLD_FALLBACK_FRAMEWORK_PATH
    DYLD_VERSIONED_FRAMEWORK_PATH
    DYLD_LIBRARY_PATH
    DYLD_FALLBACK_LIBRARY_PATH
    DYLD_VERSIONED_LIBRARY_PATH