Get function names from call stack

Question

I am working on an Android program which calls in to native code. That native code is segfaulting, and since getting debugging working through the android NDK is not really

Answer 1

You need to generate a map file. The map file contains the function address and memory locations in your executable. Have your build system modified to generate a map file.

From the map file, you can use a text editor and search for addresses. I once wrote a program to find the two symbols bounding a given address. Worked great for environments like yours.

Answer 2

You can use the ndk-stack script included in the latest ndks. The usage is simple: ndk-stack -sym "dir to objects with symbols" -dump "location to the logfile"

Answer 3

You should have a copy of arm-eabi-addr2line available in the NDK bin directory. You can use this with a command like:

arm-eabi-addr2line -f -e /path/to/lib/with/symbols.so 0x001fb18a

That will crawl through the debug symbols in the shared lib to get file and line number information. For best results hand it a library that hasn't had the debugging stuff stripped out.