[llvm-dev] lld/coff section name .debug_str is longer than 8 characters

Carlo Kok via llvm-dev llvm-dev at lists.llvm.org
Tue Dec 17 23:31:20 PST 2019

On Wed, Dec 18, 2019, at 08:11, Martin Storsjö wrote:
> On Wed, 18 Dec 2019, Carlo Kok via llvm-dev wrote:
> > Since updating today I get: section name .debug_str is longer than 8 
> > characters and will use a non-standard string table
> >
> > This is LLD + Coff/DWARF; Is this now unsupported, am I doing something 
> > wrong or something else? Alternatively, what can I do to hide it?
> The warning itself is harmless and doesn't indicate any other behaviour 
> change. It was prompted when MSVC's dumpbin.exe suddenly started 
> erroring 
> out on such object files since MSVC 2019 16.2, but that does seem to be 
> a 
> bug that is going to be fixed (see 
> https://developercommunity.visualstudio.com/content/problem/777863/dumpbin-regression-in-since-toolset-1422.html).
> As the dumpbin errors only was a regression and not an intentional change 
> (and the bug is marked as "fix pending"), maybe the warning should be 
> reverted?
> In the meantime, to silence it, you could add the -lldmingw flag, as the 
> warnings isn't printed in MinGW environments (where DWARF debug info is 
> expected and the default). That will opt in to a few other MinGW 
> compatibility behaviours though, but they shouldn't really be fatal 
> (unless you explicitly want to make DLLs with no exported symbols at all).

Thanks. Reading the LLD source, it looks like it does quite a few things. Wouldn't /debug:dwarf be a better option for this?

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