[lldb-dev] a problem with source listing in my lldb port

[Greg Clayton]

Look alike the problem is DW_AT_comp_dir is not a full path to the current working directory. Looks like a compiler bug.

Greg

On Jul 17, 2013, at 6:07 AM, chansarav <chansarav at gmail.com> wrote:

> Source listing is not working in my lldb port. For the command "source list -n main" I got the following output:
> 
> (snip)
> File: workplace/app/src/workplace/app/src/main.c.
> (snip)
> 
> Also when a breakpoint is hit, the corresponding source code lines are not displayed.
> 
> 
> I debugged lldb and found that the path to source file is calculated by combining 'cu_comp_dir' (DW_AT_comp_dir) and 'cu_die_name' (DW_AT_name).
> 
> The DWARF info generated is as follows:
> 
> (snip)
>     <1cb>   DW_AT_name        : (indirect string, offset: 0x129): workplace/app/src/main.c
>     <1cf>   DW_AT_comp_dir    : (indirect string, offset: 0x14d): workplace/app/src
> (snip)
> 
> Just for experimentation, I removed the inclusion of 'cu_comp_dir' (DW_AT_comp_dir) in the source file path calculation (by editing DWARFDebugLine.cpp and SymbolFileDWARF.cpp). After this, the 'source list' command works, also the source lines are displayed for the breakpoint hit. 
> 
> I need a clarification on where the problem is? Can someone help me on this?
> 
> Thanks,
> Chandra Kumar R.
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