Hi all! I wonder that debugger for rust compiler(rustc)
I want to debug the rust compiler but i don`t know how to debug to gdb or llvm. Is it possible to debug the rustc compiler to use debugger? If it was possible, how can i debug the compiler?
Thank you. Have a nice day 
Yes, you can use a regular debugger on rustc. Make sure to compile rustc itself with full debuginfo though. This increases the size of rustc by a lot and as such isn't enabled by default. In the config.toml file you use wihen compiling rustc there is a debug option you can set to true.
Thank you for your comment!
Then, I wonder that rustc compiler build process. Before the build process, modify the cargo.toml like below
[rust]
debug = true
Then, as I know, rustc compilation can this commend line.
./x.py build
I wonder if it is possible to debug rustc through the following procedure
Thank you!
That should work.
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