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?
I’d suggest perf if you are on Linux. It also tracks kernel-land
calls if you have permissions.
Just compile with debug symbols and run:
perf record -g ./app ...
perf report
Works for both DMD and LDC. It is sampling, so might not be
accurate for short lived stuff.
I'm using the official Debian ldc package, btw. Is there
possibly a missing dependency on some llvm libraries?
T
