about lldb status on windows

Subprojects LLDB
1

hi!

Ask a few questions:

  1. LLDB support debug .exe files in the windows? need to rely on debugger Server? Which server for use on windows?
  2. I use lldb and gdbserver with locally debug .exe file on windows, but there is a problem:
    Steps:

gdbserver:

gdbserver --remote-debug --multi [:]

lldb

gdb-remote [:]
target create -d
add-dsym -s
process launch -s
breakpoint set -f -l ; failure
thread step-in; crash

May I ask what is the reason, what should be done?

thanks!

qin.
2

Hi,

as far as I know, lldb can debug windows applications, but there are a
lot of features missing (support for PDB debug info being the most
serious -- i.e. your exe must be built with clang to have any debug
info). You don't need to use any debug server, just do a "target
create", "process launch".

hope that helps,
pl

3

Pavel Labath:

First of all, thank you for your answers.

What type of file generated debug information output to when build exe file? How to generate?
I use “clang ++ -o hello.exe hello.cpp -g” command generates a pdb and exe. pdb and exe file format is fixed, how to store debugging information generated by clang?

thanks.

qin.

发件人： Pavel Labath
发送时间： 2015-06-16 00:52
收件人： haifeng.qin
抄送： lldb-dev
主题： Re: [lldb-dev] about lldb status on windows

Hi,

as far as I know, lldb can debug windows applications, but there are a
lot of features missing (support for PDB debug info being the most
serious – i.e. your exe must be built with clang to have any debug
info). You don’t need to use any debug server, just do a “target
create”, “process launch”.

hope that helps,
pl

4

Make sure you’re using lld for the link step by adding the option -fuse-ld=lld. That will preserve the DWARF debug info, which lldb uses.

5

clang++ prompt can’t recognize “-fuse-ld=lld” on windows. clang++ version is 3.6 .

command :
clang ++ -o hello.exe hello.cpp -g -fuse-ld=lld

Is there a problem with my usage?

thanks.

qin.

发件人： Adrian McCarthy
发送时间： 2015-06-17 23:14
收件人： haifeng.qin
抄送： Pavel Labath; lldb-dev
主题： Re: [lldb-dev] about lldb status on windows

Make sure you’re using lld for the link step by adding the option -fuse-ld=lld. That will preserve the DWARF debug info, which lldb uses.

6

I think you’ll need something newer. I’m working at the tip of the tree, and it works for me.

7

thanks.
problem has been solved after Update to the latest .

Encountered a new problem, use the “thread backtrace” and “thread step-in” to cause a crash. Before using these commands, whether pre-conditions?

thanks.

发件人： Adrian McCarthy
发送时间： 2015-06-18 22:51
收件人： haifeng.qin
抄送： lldb-dev; Pavel Labath
主题： Re: Re: [lldb-dev] about lldb status on windows

I think you’ll need something newer. I’m working at the tip of the tree, and it works for me.

8

There are still many bugs to be fixed and features that aren’t fully implemented.