WIP: introduce tbb library (for mold linker)

[fzakaria]

DESCRIPTION

oneAPI Threading Building Blocks (oneTBB)

oneTBB is a flexible C++ library that simplifies the work of adding parallelism to complex applications,
even if you are not a threading expert.

SOURCE

https://github.com/oneapi-src/oneTBB

commit e813596ba3a1bee0ffa06fb66b5e30b7ea801319
Author: Alexandra [email protected]
Date: Wed Jun 21 18:46:54 2023 +0200

  Documentation for std::invoke (#1112)

[fzakaria]

The contribution is nearly ready.
I believe I solved all the include statements but something is wonky with my Makefile as it's giving:

❯ build/bootstrap/make.com o//third_party/tbb
♥cosmo
o//third_party/tbb/address_waiter.o: open failed with ENOENT

`make MODE= -j24 o//third_party/tbb/tbb.a.pkg` exited with 1:
build/bootstrap/package.com -o o//third_party/tbb/tbb.a.pkg -do//third_party/libcxx/libcxx.a.pkg @/usr/local/google/home/fmzakari/code/github.com/jart/cosmopolitan/o/tmp/o__third_party_tbb_tbb_a_pkg.uds20q/.args
consumed 710µs wall time
ballooned to 188kb in size
needed 631us cpu (0% kernel)
caused 22 page faults (100% memcpy)

make.com: *** [build/rules.mk:105: o//third_party/tbb/tbb.a.pkg] Error 1

[fzakaria]

Renamed all the cpp files to cc since I found that is the defined rule.

I am now hitting a slew of errors that are confusing. Looks like it's only compiling as C not CXX:
./third_party/libcxx/__nullptr:54:1: error: unknown type name 'namespace'

❯ MODE=dbg make o/dbg/third_party/tbb 2>&1 | head -n 20
♥cosmo
    561,794⏰     556,388⏳     9,080k   7,528iop build/bootstrap/mkdeps.com -o o/tmp/o_dbg_depend -r o/dbg/ @o/dbg/srcs.txt @o/dbg/hdrs.txt @o/dbg/incs.txt
♥cosmo
        750⏰         675⏳       184k       8iop build/bootstrap/package.com -o o/dbg/third_party/tbb/tbb.a.pkg -do/dbg/third_party/libcxx/libcxx.a.pkg @o/tmpo_dbg_third_party_tbb_tbb.a.pkg.tmp.args
In file included from ./third_party/libcxx/cstddef:45,
                 from ./third_party/libcxx/atomic:551,
                 from third_party/tbb/arena.h:21:
./third_party/libcxx/__nullptr:54:1: error: unknown type name 'namespace'
   54 | namespace std
      | ^~~~~~~~~
./third_party/libcxx/__nullptr:55:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
   55 | {

Specifically make MODE= -j24 o//third_party/tbb/arena.h.ok is failing

[fzakaria]

Okay renamed .h -> .hh

Current failure:

❯ make o//third_party/tbb
♥cosmo
In file included from ./third_party/tbb/scheduler_common.hh:28,
                 from third_party/tbb/arena.hh:28:
./third_party/tbb/co_context.hh: In function 'void tbb::detail::r1::create_coroutine(tbb::detail::r1::coroutine_type&, size_t, void*)':
./third_party/tbb/co_context.hh:390:5: error: 'makecontext' was not declared in this scope
  390 |     makecontext(&c.my_context, (coroutine_func_t)co_local_wait_for_all, 2, hi, lo);
      |     ^~~~~~~~~~~

Can't seem to find makecontext although I included uccontext.h
https://man7.org/linux/man-pages/man3/makecontext.3.html

[jart]

Looks like you need makecontext(). We used to have it. I can't remember why we don't anymore. I'll start bringing it back now