Merge commit '03f01bbe901d60b71cf2c5ec766aef5e532ab79d' into update_cg_clif-2020-11-01

2 files changed, 16 insertions, 13 deletions

diff --git a/compiler/rustc_codegen_cranelift/build_sysroot/build_sysroot.sh b/compiler/rustc_codegen_cranelift/build_sysroot/build_sysroot.sh
index 04c82ca2a51..eba15c0dd43 100755
--- a/compiler/rustc_codegen_cranelift/build_sysroot/build_sysroot.sh
+++ b/compiler/rustc_codegen_cranelift/build_sysroot/build_sysroot.sh
@@ -3,25 +3,28 @@
 # Requires the CHANNEL env var to be set to `debug` or `release.`
 
 set -e
-cd $(dirname "$0")
 
-pushd ../ >/dev/null
-source ./scripts/config.sh
-popd >/dev/null
+source ./config.sh
 
-# Cleanup for previous run
-#     v Clean target dir except for build scripts and incremental cache
-rm -r target/*/{debug,release}/{build,deps,examples,libsysroot*,native} 2>/dev/null || true
-rm -r sysroot/ 2>/dev/null || true
+dir=$(pwd)
 
 # Use rustc with cg_clif as hotpluggable backend instead of the custom cg_clif driver so that
 # build scripts are still compiled using cg_llvm.
-export RUSTC=$(pwd)/../"target/"$CHANNEL"/cg_clif_build_sysroot"
+export RUSTC=$dir"/cg_clif_build_sysroot"
 export RUSTFLAGS=$RUSTFLAGS" --clif"
 
+cd $(dirname "$0")
+
+# Cleanup for previous run
+#     v Clean target dir except for build scripts and incremental cache
+rm -r target/*/{debug,release}/{build,deps,examples,libsysroot*,native} 2>/dev/null || true
+
+# We expect the target dir in the default location. Guard against the user changing it.
+export CARGO_TARGET_DIR=target
+
 # Build libs
 export RUSTFLAGS="$RUSTFLAGS -Zforce-unstable-if-unmarked -Cpanic=abort"
-if [[ "$1" == "--release" ]]; then
+if [[ "$1" != "--debug" ]]; then
     sysroot_channel='release'
     # FIXME Enable incremental again once rust-lang/rust#74946 is fixed
     # FIXME Enable -Zmir-opt-level=2 again once it doesn't ice anymore
@@ -32,5 +35,5 @@ else
 fi
 
 # Copy files to sysroot
-mkdir -p sysroot/lib/rustlib/$TARGET_TRIPLE/lib/
-cp -r target/$TARGET_TRIPLE/$sysroot_channel/deps/* sysroot/lib/rustlib/$TARGET_TRIPLE/lib/
+mkdir -p $dir/sysroot/lib/rustlib/$TARGET_TRIPLE/lib/
+cp -a target/$TARGET_TRIPLE/$sysroot_channel/deps/* $dir/sysroot/lib/rustlib/$TARGET_TRIPLE/lib/
diff --git a/compiler/rustc_codegen_cranelift/build_sysroot/prepare_sysroot_src.sh b/compiler/rustc_codegen_cranelift/build_sysroot/prepare_sysroot_src.sh
index 14aa77478f5..d0fb09ce745 100755
--- a/compiler/rustc_codegen_cranelift/build_sysroot/prepare_sysroot_src.sh
+++ b/compiler/rustc_codegen_cranelift/build_sysroot/prepare_sysroot_src.sh
@@ -12,7 +12,7 @@ fi
 
 rm -rf $DST_DIR
 mkdir -p $DST_DIR/library
-cp -r $SRC_DIR/library $DST_DIR/
+cp -a $SRC_DIR/library $DST_DIR/
 
 pushd $DST_DIR
 echo "[GIT] init"