Profiling with LDC

[H. S. Teoh]

On Wed, Apr 25, 2018 at 06:33:56PM +0000, Johan Engelen via Digitalmars-d wrote:
> On Wednesday, 25 April 2018 at 17:31:06 UTC, H. S. Teoh wrote:
> > I'm trying to figure out how to do a traditional instrumented
> > profile with LDC.  All docs that I've managed to find so far say to
> > use -fprofile-instr-generate, but when I try that, I get a ton of
> > linker errors complaining of undefined reference to the symbol:
> > 
> > 	__llvm_profile_instrument_target
> > 
> > What gives?  I'm guessing I need to specify some additional LLVM
> > libraries for this?
> 
> How are you linking? Do you let LDC link and is
> `-fprofile-instr-generate` passed during linking aswell?

I'm compiling and linking with LDC as a single command.


> The profiling runtime must be linked in. On Unixes, the file is
> "libldc_rt.profile-x86_64.a".
[...]

This library appears to be missing from my system. I'm guessing that's
the cause of the problem.  Which package is it found in?  I currently
have these ldc-related packages installed:

	ldc
	libphobos2-ldc-dev
	libphobos2-ldc-shared-dev
	libphobos2-ldc-shared78:amd64

Maybe I'm missing a package or two?


T

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