Ruby Support

info

In order to profile Ruby code you must have an interpreter with symbols.

You can check if your Ruby interpreter has symbols by running the following command:

$ nm /path/to/ruby | grep ruby_init
❯ 0000000000000000 T ruby_init

If you see ruby_init then your Ruby interpreter has symbols and you can enable Ruby profiling.

tip

Sometimes the Ruby interpreter is dynamically linked as a shared library that has symbols, in that case you can check the shared library for symbols:

$ ldd /path/to/ruby
❯   linux-vdso.so.1 (0x00007ffcda2ff000)
    libruby.so.3.2 => /usr/local/lib/libruby.so.3.2 (0x00007f7184bea000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f7184bc9000)
    libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f7184b48000)
    libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f7184b0c000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f7184a2d000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f718484a000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f718482a000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f7185236000)

$ nm /path/to/libruby.so.3.2 | grep ruby_current_vm
❯ 0000000000a0b0c0 D ruby_current_vm

If you have ruby_current_vm or ruby_current_vm_ptr then your Ruby interpreter has symbols and you can enable Ruby profiling.