mulle-gdb

🦗 gdb debugger for mulle-objc

This is the release version of gdb 11.1 adapted to work with mulle-objc. Currently only x86_64 is known to work.

The version tracks that of gdb, but extends it to 4 parts, where the last digit is the mulle version. (e.g. 11.1 > 11.1.0.1)

Debugs code linked with mulle-objc-runtime 0.20.

Source

The majority of the changes are predictably in gdb/objc-lang.c. They are not specifically marked. Changes outside of this file should be marked '// @mulle-gdb' and therefore easy to find.

Releasenotes

• (hardcoded) mulle-objc runtime functions do not appear in the stacktrace
• (hardcoded) mulle-objc runtime functions are skipped in step-in/step-out/finish

Install

There are no mulle-gdb packages. You have to build and install mulle-gdb manually.

Manual installation

Prerequisite	Comment
autoconf
texinfo
flex
bison
build-essential	c++, make etc.

MULLE_GDB_VERSION=11.1.0.1
./configure-mulle-gdb --prefix "/opt/mulle-gdb/${MULLE_GDB_VERSION}"
make -j 8
sudo make install
sudo ln -f -s "/opt/mulle-gdb/${MULLE_GDB_VERSION}/bin/mulle-gdb" \
              "/usr/local/bin/mulle-gdb"

You may want to change the options in the configure-mulle-gdb script to your liking. I prefer a minimal debugger without python.

MacOS

Does it work on macOS ? Maybe. Beware though, that macOS is a consumer platform and not a developer platform.

Here are some links to get mulle-gdb to run:

• GDB Wiki PermissionsDarwin
• Stackoverflow 1
• Stackoverflow 2

Hangs:

• Getting gdb to (semi) reliably work

Note

Even properly signed I need sudo DevToolsSecurity -enable to debug.