If you are on macOS, then the Xcode build has a "Debug" configuration which
builds clang/llvm Release+asserts with no debug info, and lldb at -O0 with
debug info.
Jim
> On Jun 28, 2018, at 2:58 AM, Pavel Labath via lldb-dev
> <lldb-dev@lists.llvm.org> wrote:
>
> On Thu, 28 Jun 2018 at 04:34, Adrian Harris via lldb-dev
> <lldb-dev@lists.llvm.org> wrote:
>>
>> Hi Everyone,
>>
>> I'm writing a gdb-server for a new architecture and need to be able to debug
>> lldb to track down issues. Unfortunately disk space is tight here and the
>> llvm debug build consumes north of 40Gb with debug symbols. Is there any way
>> to build *only* lldb with debug symbols (and no optimization)?
>
> Hi Adrian,
>
> This is a somewhat non-standard configuration, but there are a couple
> of ways you could achieve that. A couple which come to mind are:
> - If you're fine with hacking the cmake files then you could just
> insert something like
> set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g0")
> into the root llvm CMakeLists.txt
> and then add
> set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g")
> to lldb's CMakeLists.txt
>
> - If you want a solution which does not involve modifying the cmake
> files, you could build llvm and lldb separately. The llvm could be
> built with -g0 (or even in release mode if you really want) and then
> the stanalone lldb build would be -g.
>
> - You can also try building with -gsplit-dwarf
> (LLVM_USE_SPLIT_DWARF=On) to see if that saves enough space for things
> to work for you.
>
> pl
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