rust-lldb script import failed on lldb-16

[PureWhiteWu]

Calling rust-lldb on debian buster with lldb-16 installed following "https://apt.llvm.org/" failed to import script.

Encountered the following error:

# rust-lldb
(lldb) command script import "/root/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/etc/lldb_lookup.py"
error: module importing failed: This script interpreter does not support importing modules.

I've tried this on different machines with clean install, and it all exists.

Is this related to rust-lldb or is a bug of llvm?

[PureWhiteWu]

From rust-lldb, I found the following code:

RUSTC_SYSROOT=$(rustc --print sysroot)
RUST_LLDB="$RUSTC_SYSROOT/lib/rustlib/$host/bin/lldb"

lldb=lldb
if [ -f "$RUST_LLDB" ]; then
    lldb="$RUST_LLDB"
...

I tried to install the bundled llvm tools with rustup, but seems there's no lldb in it:

$ rustup component add llvm-tools-x86_64-unknown-linux-gnu
$ ls
gcc-ld  llc  llvm-ar  llvm-as  llvm-cov  llvm-dis  llvm-nm  llvm-objcopy  llvm-objdump  llvm-profdata  llvm-readobj  llvm-size  llvm-strip  opt  rust-lld

How to install the rustc bundled lldb that is verified to work?

[ehuss]

It looks like your LLDB does not have Python support. You'll need to make sure that LLDB_ENABLE_PYTHON is enabled when building lldb, which requires Python to be installed I believe. You'll need to look at your operating system's build scripts for lldb.

How to install the rustc bundled lldb that is verified to work?

This hasn't existed for many years.

[PureWhiteWu]

@ehuss Thank you for your reply!

Why does the bundled llvm-tools not have lldb together do you know? Is there some bugs there or it's just because nobody did it?

[ehuss]

I don't offhand remember why it isn't built.

[jieyouxu]

Why does the bundled llvm-tools not have lldb together do you know? Is there some bugs there or it's just because nobody did it?

Late reply, but, probably just because nobody did it (or at least tried to implement that and see what issues they run into).

[Enselic]

Triage: closing as this is not a rust bug