[lldb-dev] Debugging x86 binaries on x86_64?

Stephane Sezer sas at fb.com
Mon Dec 1 10:07:20 PST 2014

This has been fixed back in August. You’re running an old version of lldb. I would recommend building from master if that’s possible for your use case.

Stephane Sezer

> On Nov 19, 2014, at 7:13 AM, Arne Schmitz <arne.schmitz at aixigo.de> wrote:
> Hi everyone,
> I just built lldb 3.5.0 from source on a x86_64 Debian Stable machine (because there are no packages for Debian Stable). When I try to debug a 32bit (x86) application with the resulting binary, I get the following error:
> $ lldb -p $(pgrep foo)
> lldb: llvm-3.5.0.src/tools/lldb/source/Plugins/Process/Utility/RegisterContextLinux_x86_64.cpp:137: uint32_t GetRegisterInfoCount(const lldb_private::ArchSpec&): Assertion `!GetPrivateRegisterInfoVector ().empty () && "i386 register info not yet filled."' failed.
> Aborted
> Debugging x86_64 works just fine. Why is that? Is this a known bug? How can I fix this?
> Best regards,
> Arne
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