zeldin

FW upload starts with a packet of type 8:

byte 0 : 00
byte 1 : 08 = FW upload start command
byte 2 : 03 = packet sequence number
byte 3 : 01 = upload protocol version?  Must be 1
byte 4-5 : 00 00 = total number of bytes (16-bit little endian), 0 means 64K (max size)
byte 6-7 : 7e 04 = total number of data blocks (16-bit little endian)
byte 8-9 : 00 00 = ? (not used)
byte 10: 39 = bytes of flash data per data block (decimal: 57) (not used)

zeldin

# compile with:	 gcc -m32 -static -nostdlib -o hello hello.s

	
	.text

	.globl	_start

_start:	
	bl	1f
1:

zeldin

diff --git a/src/cmd/link/internal/ld/config.go b/src/cmd/link/internal/ld/config.go
index 60b6491859..2d8f96408e 100644
--- a/src/cmd/link/internal/ld/config.go
+++ b/src/cmd/link/internal/ld/config.go
@@ -247,9 +247,6 @@ func determineLinkMode(ctxt *Link) {
                        }
                        ctxt.LinkMode = LinkInternal
                case "1":
-                       if objabi.GOARCH == "ppc64" {
-                               Exitf("external linking requested via GO_EXTLINK_ENABLED but not supported for %s/ppc64", objabi.GOOS)

zeldin

vanadis ~ # cat /usr/local/portage/app-misc/twoleveltest/twoleveltest-0.ebuild
EAPI=7
SLOT=0
KEYWORDS="riscv"
S="${WORKDIR}"
src_install() {
  echo "hello" > foobar
  insinto /usr/lib64/lp64d
  doins foobar

zeldin

1) Build the Docker at https://github.com/gregwebs/ghc-docker-dev.git
   for the target arch
2) Inside the Docker, make a manual build from the upstreams ghc
   sources, with all the Debian patches applied, with a prefix of
   /tmp/ghcfoo
3) Copy /tmp/ghcfoo from the Docker to the target system
4) Set up /etc/portage/env/dev-lang/ghc to add the ghc binary in
   /tmp/ghcfoo to the path
5) Build the ebuild with USE=ghcbootstrap
6) Delete the /etc/portage/env file and rebuild the ebuild again, to

zeldin

#!/bin/sh
version="$@"
if [ -z "$version" ]; then
  version="`equery l -F '$fullversion' -p dev-lang/ghc | tail -1`"
fi
PKGDIR="/tmp/`uname -m`/packages"
[ -d "$PKGDIR" ] || mkdir -p "$PKGDIR"
export PKGDIR
CFLAGS="-O2 -pipe"
export CFLAGS

zeldin

Debian patches needed for riscv64:

latomic-subword.patch

Debian patches needed for ppc (32-bit):

latomic-subword.patch
latomic-64bit.patch

zeldin

//          Copyright Oliver Kowalke 2016.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)
// libcontext adaptation by Marcus Comstedt 2022

#include <cstdlib>
#include <iostream>
#include <memory>

zeldin

FEATURES=test USE=test emerge -1a dev-haskell/mtl dev-haskell/text dev-haskell/fail dev-haskell/transformers dev-haskell/parsec dev-haskell/transformers-compat dev-haskell/cabal dev-haskell/tagged dev-haskell/splitmix dev-haskell/primitive dev-haskell/colour dev-haskell/nanospec dev-haskell/cabal-doctest dev-haskell/th-abstraction dev-haskell/clock dev-haskell/setenv dev-haskell/stm dev-haskell/random dev-haskell/call-stack dev-haskell/ansi-terminal dev-haskell/quickcheck dev-haskell/hunit dev-haskell/tf-random dev-haskell/quickcheck-io dev-haskell/hspec-expectations
FEATURES=-test USE=-test emerge -1a dev-haskell/hspec-discover dev-haskell/hspec-core  # check only these 2 are merged
FEATURES=test USE=test emerge -1a dev-haskell/hspec-discover dev-haskell/hspec-core
FEATURES=test USE=test emerge -a @preserved-rebuild # Should rebuild dev-haskell/hspec

Only three rebuilds are needed; dev-haskell/hspec-discover dev-haskell/hspec-core and dev-haskell/hspec


Build list for first command (25 builds)

zeldin

FROM ubuntu:jammy

ENV DEBIAN_FRONTEND=noninteractive

RUN sed -i -e '/deb-src/s/^#//' /etc/apt/sources.list && apt-get update
RUN apt-get install -y --no-install-recommends dpkg-dev

WORKDIR /tmp

RUN apt-get source breezy