Add yk to ruby.

[ptersilie]

These changes add yk to ruby and allow us to run this very simple program:

x = 2000000
puts "while"
while x >= 1111
  #print "."
  x = x - 1
end
puts "end"

On top of these changes we also have to edit the Makefile generates by the configure script. I'm unsure how we should version control this right now. We might need to edit the configure script directly to output the correct Makefile.

So to build we need to do:

Configure Ruby with:

mkdir build
cd build
../configure --disable-yjit optflags="-O0 -fno-omit-frame-pointer"

Adjust the build/Makefile as follows:

YKPATH = /home/lukasd/research/yk
YKBUILDTYPE = debug
ARCH_FLAG = -flto
CC = `yk-config ${YKBUILDTYPE} --cc` -gdwarf-4 -g
CFLAGS = $(CFLAGS_NO_ARCH) $(ARCH_FLAG) -I$(YKPATH)/ykcapi
LDFLAGS =  $(CFLAGS) -L. -rdynamic -Wl,-export-dynamic -fuse-ld=lld -Wl,-mllvm=--yk-embed-ir -Wl,--wrap=pthread_create -Wl,--mllvm=--disable-branch-fold -Wl,--mllvm=--disable-block-placement -Wl,--mllvm=--disable-early-taildup -Wl,--mllvm=--disable-tail-duplicate -Wl,--mllvm=--yk-disable-tail-call-codegen -Wl,--mllvm=--yk-no-fallthrough -Wl,--mllvm=--yk-patch-control-point -Wl,--mllvm=--yk-insert-stackmaps -Wl,--mllvm=--yk-split-blocks-after-calls -Wl,--mllvm=--yk-block-disambiguate -Wl,--mllvm=--yk-basicblock-tracer -Wl,--mllvm=--yk-no-calls-in-entryblocks -Wl,--mllvm=--yk-stackmap-spillreloads-fix -Wl,--mllvm=--yk-shadow-stack -Wl,--mllvm=--yk-stackmap-add-locs -Wl,--mllvm=--yk-dont-opt-func-abi -Wl,--mllvm=--yk-optnone-after-ir-passes -Wl,--lto-basic-block-sections=labels -Wl,--export-dynamic -Wl,--mllvm=--yk-linkage -L${YKPATH}/bin/../target/${YKBUILDTYPE}/deps -Wl,-rpath=${YKPATH}/bin/../target/${YKBUILDTYPE}/deps -Wl,-rpath=${YKPATH}/target/${YKBUILDTYPE}/ykllvm/lib

Then run make miniruby to build miniruby.

[ptersilie]

This depends on ykjit/yk#1858.

[vext01]

We discussed this on the sync and @ptersilie is going to try and minimise the amount of manual patching required (where possible without large changes to the build system).

[ptersilie]

Added a commit to make building easier. Needs squashing.

[ltratt]

Please squash.

[ptersilie]

Squashed.

[ptersilie]

Ah this also needs the new clang. Ok to squash?

[ltratt]

Please squash.

[ptersilie]

Squashed.

[ptersilie]

This went through with tryci now. Ok to squash?

[vext01]

Please squash

[ptersilie]

Squashed.

[ptersilie]

Force pushed a change. Try again.

The problem was that docker copies in the build directory, so we need to remove it, if it was created. Sadly docker's COPY can't exclude folders, at least not the version we are using.

[ptersilie]

Okay, fixed and trycied on a fresh checkout. Hopefully this will go through now.