LLDB only works for project contains one go source file

[Leopold Freeman]

Hi:

    I upgraded my MBP to macOS Sierra, and gdb was broke because Apple tightened security policy. So I compiled LLDB from trunk according to here and here. Here are the steps:

> svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm

> cd llvm/tools

> svn co http://llvm.org/svn/llvm-project/cfe/trunk clang

> svn co http://llvm.org/svn/llvm-project/lldb/trunk lldb

> cd clang/tools

> svn co http://llvm.org/svn/llvm-project/clang-tools-extra/trunk clang-tools-extra

> cd ../../../projects

> svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt

> svn co http://llvm.org/svn/llvm-project/libcxx/trunk libcxx

> svn co http://llvm.org/svn/llvm-project/libcxxabi/trunk libcxxabi

> svn co http://llvm.org/svn/llvm-project/libunwind/trunk libunwind

> svn co http://llvm.org/svn/llvm-project/lld/trunk lld

> cd .. && mkdir build && cd build

> cmake .. -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX="$INSTALL_DIR"/llvm-"$1" -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_DOXYGEN=Off -DLLVM_ENABLE_SPHINX=Off

The lldb I compiled only works for simple project contains one go source file. If the project contains many go files (go build with -gcflags "-N -l"), the outputs of lldb were all assembly codes:

> lldb ./bin/debug/xkcd 

(lldb) target create "./bin/debug/xkcd"

Current executable set to './bin/debug/xkcd' (x86_64).

(lldb) b main.main

Breakpoint 1: where = xkcd`main.main + 77 at xkcd.go:16, address = 0x000000000000208d

(lldb) r

Process 38114 launched: './bin/debug/xkcd' (x86_64)

Process 38114 stopped

* thread #6: tid = 0x0001, 0x000000000000208d libenergytrace.dylib, stop reason = breakpoint 1.1

    frame #0: 0x000000000000208d libenergytrace.dylib

->  0x208d: callq  0x5d4a0

    0x2092: movq   0x366ccf(%rip), %rax

    0x2099: jmp    0x209b

    0x209b: movzbl (%rax), %eax

It seems llvm supports go from v3.8 (https://groups.google.com/forum/#!topic/golang-nuts/pzpNcarQcvo).

So, did I miss some compile options?

[Leopold Freeman]

It seems I put lld in the wrong place, but after I moved it to the llvm/tools, and recompiled it, the result is the same.

[xied...@gmail.com]

hi, I have meet the same question, did you solved it ?

在 2016年10月26日星期三 UTC+8下午7:20:01，Leopold Freeman写道：

[Derek Parker]

You could try using Delve for debugging: https://github.com/derekparker/delve