From 9164653c10b7aa7cfea2b0556ca7c332e6df4a0b Mon Sep 17 00:00:00 2001
From: bjorn3 <bjorn3@users.noreply.github.com>
Date: Sun, 31 Jan 2021 13:08:07 +0100
Subject: [PATCH] Split config.sh and add support for copying the mingw runtime
 objects

---
 build.sh                       |  7 +++++++
 build_sysroot/build_sysroot.sh |  1 -
 scripts/config.sh              | 29 +----------------------------
 scripts/ext_config.sh          | 26 ++++++++++++++++++++++++++
 test.sh                        |  2 +-
 5 files changed, 35 insertions(+), 30 deletions(-)
 create mode 100644 scripts/ext_config.sh

diff --git a/build.sh b/build.sh
index 344e4295636..d688d365f16 100755
--- a/build.sh
+++ b/build.sh
@@ -48,6 +48,8 @@ else
     cargo build $oldbe
 fi
 
+source scripts/ext_config.sh
+
 rm -rf "$target_dir"
 mkdir "$target_dir"
 mkdir "$target_dir"/bin "$target_dir"/lib
@@ -55,6 +57,11 @@ ln target/$CHANNEL/cg_clif{,_build_sysroot} "$target_dir"/bin
 ln target/$CHANNEL/*rustc_codegen_cranelift* "$target_dir"/lib
 ln rust-toolchain scripts/config.sh scripts/cargo.sh "$target_dir"
 
+mkdir -p "$target_dir/lib/rustlib/$TARGET_TRIPLE/lib/"
+if [[ "$TARGET_TRIPLE" == "x86_64-pc-windows-gnu" ]]; then
+    cp $(rustc --print sysroot)/lib/rustlib/$TARGET_TRIPLE/lib/*.o "$target_dir/lib/rustlib/$TARGET_TRIPLE/lib/"
+fi
+
 if [[ "$build_sysroot" == "1" ]]; then
     echo "[BUILD] sysroot"
     export CG_CLIF_INCR_CACHE_DISABLED=1
diff --git a/build_sysroot/build_sysroot.sh b/build_sysroot/build_sysroot.sh
index ad2796f2e37..2785a289d95 100755
--- a/build_sysroot/build_sysroot.sh
+++ b/build_sysroot/build_sysroot.sh
@@ -36,6 +36,5 @@ else
 fi
 
 # Copy files to sysroot
-mkdir -p "$dir/lib/rustlib/$TARGET_TRIPLE/lib/"
 ln "target/$TARGET_TRIPLE/$sysroot_channel/deps/"* "$dir/lib/rustlib/$TARGET_TRIPLE/lib/"
 rm "$dir/lib/rustlib/$TARGET_TRIPLE/lib/"*.{rmeta,d}
diff --git a/scripts/config.sh b/scripts/config.sh
index e2914b9bee8..834708aa9a6 100644
--- a/scripts/config.sh
+++ b/scripts/config.sh
@@ -12,28 +12,6 @@ else
    exit 1
 fi
 
-HOST_TRIPLE=$(rustc -vV | grep host | cut -d: -f2 | tr -d " ")
-TARGET_TRIPLE=$HOST_TRIPLE
-#TARGET_TRIPLE="x86_64-pc-windows-gnu"
-#TARGET_TRIPLE="aarch64-unknown-linux-gnu"
-
-linker=''
-RUN_WRAPPER=''
-export JIT_SUPPORTED=1
-if [[ "$HOST_TRIPLE" != "$TARGET_TRIPLE" ]]; then
-   export JIT_SUPPORTED=0
-   if [[ "$TARGET_TRIPLE" == "aarch64-unknown-linux-gnu" ]]; then
-      # We are cross-compiling for aarch64. Use the correct linker and run tests in qemu.
-      linker='-Clinker=aarch64-linux-gnu-gcc'
-      RUN_WRAPPER='qemu-aarch64 -L /usr/aarch64-linux-gnu'
-   elif [[ "$TARGET_TRIPLE" == "x86_64-pc-windows-gnu" ]]; then
-      # We are cross-compiling for Windows. Run tests in wine.
-      RUN_WRAPPER='wine'
-   else
-      echo "Unknown non-native platform"
-   fi
-fi
-
 if echo "$RUSTC_WRAPPER" | grep sccache; then
 echo
 echo -e "\x1b[1;93m=== Warning: Unset RUSTC_WRAPPER to prevent interference with sccache ===\x1b[0m"
@@ -45,18 +23,13 @@ dir=$(cd "$(dirname "${BASH_SOURCE[0]}")"; pwd)
 
 export RUSTC=$dir"/bin/cg_clif"
 
-if [ ! -z $linker ]; then
-	export RUSTFLAGS=$linker" "$RUSTFLAGS
-fi
-
 export RUSTDOCFLAGS=$linker' -Cpanic=abort -Zpanic-abort-tests '\
 '-Zcodegen-backend='$dir'/lib/librustc_codegen_cranelift.'$dylib_ext' --sysroot '$dir
 
 # FIXME remove once the atomic shim is gone
-if [[ $(uname) == 'Darwin' ]]; then
+if [[ "$unamestr" == 'Darwin' ]]; then
    export RUSTFLAGS="$RUSTFLAGS -Clink-arg=-undefined -Clink-arg=dynamic_lookup"
 fi
 
 export LD_LIBRARY_PATH="$(rustc --print sysroot)/lib:"$dir"/lib"
 export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH
-
diff --git a/scripts/ext_config.sh b/scripts/ext_config.sh
new file mode 100644
index 00000000000..eab41631e2b
--- /dev/null
+++ b/scripts/ext_config.sh
@@ -0,0 +1,26 @@
+# Note to people running shellcheck: this file should only be sourced, not executed directly.
+
+# Various env vars that should only be set for the build system but not for cargo.sh
+
+set -e
+
+export CG_CLIF_DISPLAY_CG_TIME=1
+
+export HOST_TRIPLE=$(rustc -vV | grep host | cut -d: -f2 | tr -d " ")
+export TARGET_TRIPLE=${TARGET_TRIPLE:-$HOST_TRIPLE}
+
+export RUN_WRAPPER=''
+export JIT_SUPPORTED=1
+if [[ "$HOST_TRIPLE" != "$TARGET_TRIPLE" ]]; then
+   export JIT_SUPPORTED=0
+   if [[ "$TARGET_TRIPLE" == "aarch64-unknown-linux-gnu" ]]; then
+      # We are cross-compiling for aarch64. Use the correct linker and run tests in qemu.
+      export RUSTFLAGS='-Clinker=aarch64-linux-gnu-gcc '$RUSTFLAGS
+      export RUN_WRAPPER='qemu-aarch64 -L /usr/aarch64-linux-gnu'
+   elif [[ "$TARGET_TRIPLE" == "x86_64-pc-windows-gnu" ]]; then
+      # We are cross-compiling for Windows. Run tests in wine.
+      export RUN_WRAPPER='wine'
+   else
+      echo "Unknown non-native platform"
+   fi
+fi
diff --git a/test.sh b/test.sh
index ffd795b83ef..4f3be076528 100755
--- a/test.sh
+++ b/test.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-export CG_CLIF_DISPLAY_CG_TIME=1
+source scripts/ext_config.sh
 
 ./build.sh --without-sysroot "$@"