src/ci/scripts/install-mingw.sh

   1 #!/bin/bash
   2 # If we need to download a custom MinGW, do so here and set the path
   3 # appropriately.
   4 #
   5 # Here we also do a pretty heinous thing which is to mangle the MinGW
   6 # installation we just downloaded. Currently, as of this writing, we're using
   7 # MinGW-w64 builds of gcc, and that's currently at 6.3.0. We use 6.3.0 as it
   8 # appears to be the first version which contains a fix for #40546, builds
   9 # randomly failing during LLVM due to ar.exe/ranlib.exe failures.
  10 #
  11 # Unfortunately, though, 6.3.0 *also* is the first version of MinGW-w64 builds
  12 # to contain a regression in gdb (#40184). As a result if we were to use the
  13 # gdb provided (7.11.1) then we would fail all debuginfo tests.
  14 #
  15 # In order to fix spurious failures (pretty high priority) we use 6.3.0. To
  16 # avoid disabling gdb tests we download an *old* version of gdb, specifically
  17 # that found inside the 6.2.0 distribution. We then overwrite the 6.3.0 gdb
  18 # with the 6.2.0 gdb to get tests passing.
  19 #
  20 # Note that we don't literally overwrite the gdb.exe binary because it appears
  21 # to just use gdborig.exe, so that's the binary we deal with instead.
  22 #
  23 # Otherwise install MinGW through `pacman`
  24
  25 set -euo pipefail
  26 IFS=$'\n\t'
  27
  28 source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
  29
  30 MINGW_ARCHIVE_32="i686-6.3.0-release-posix-dwarf-rt_v5-rev2.7z"
  31 MINGW_ARCHIVE_64="x86_64-6.3.0-release-posix-seh-rt_v5-rev2.7z"
  32
  33 if isWindows; then
  34     case "${CI_JOB_NAME}" in
  35         *i686*)
  36             bits=32
  37             arch=i686
  38             mingw_archive="${MINGW_ARCHIVE_32}"
  39             ;;
  40         *x86_64*)
  41             bits=64
  42             arch=x86_64
  43             mingw_archive="${MINGW_ARCHIVE_64}"
  44             ;;
  45         *)
  46             echo "src/ci/scripts/install-mingw.sh can't detect the builder's architecture"
  47             echo "please tweak it to recognize the builder named '${CI_JOB_NAME}'"
  48             exit 1
  49             ;;
  50     esac
  51
  52     if [[ "${CUSTOM_MINGW-0}" -ne 1 ]]; then
  53         pacman -S --noconfirm --needed mingw-w64-$arch-toolchain mingw-w64-$arch-cmake \
  54             mingw-w64-$arch-gcc \
  55             mingw-w64-$arch-python # the python package is actually for python3
  56         ciCommandAddPath "$(ciCheckoutPath)/msys2/mingw${bits}/bin"
  57     else
  58         mingw_dir="mingw${bits}"
  59
  60         curl -o mingw.7z "${MIRRORS_BASE}/${mingw_archive}"
  61         7z x -y mingw.7z > /dev/null
  62         curl -o "${mingw_dir}/bin/gdborig.exe" "${MIRRORS_BASE}/2017-04-20-${bits}bit-gdborig.exe"
  63         ciCommandAddPath "$(pwd)/${mingw_dir}/bin"
  64     fi
  65 fi