1 files changed, 147 insertions, 0 deletions
diff --git a/third_party/rust/libc/ci/run.sh b/third_party/rust/libc/ci/run.sh
new file mode 100755
index 000000000..4e04ddddc
--- /dev/null
+++ b/third_party/rust/libc/ci/run.sh
@@ -0,0 +1,147 @@
+#!/bin/sh
+
+# Builds and runs tests for a particular target passed as an argument to this
+# script.
+
+set -ex
+
+TARGET=$1
+
+# If we're going to run tests inside of a qemu image, then we don't need any of
+# the scripts below. Instead, download the image, prepare a filesystem which has
+# the current state of this repository, and then run the image.
+#
+# It's assume that all images, when run with two disks, will run the `run.sh`
+# script from the second which we place inside.
+if [ "$QEMU" != "" ]; then
+  tmpdir=/tmp/qemu-img-creation
+  mkdir -p $tmpdir
+  if [ ! -f $tmpdir/$QEMU ]; then
+    curl https://people.mozilla.org/~acrichton/libc-test/qemu/$QEMU.gz | \
+      gunzip -d > $tmpdir/$QEMU
+  fi
+
+  # Create a mount a fresh new filesystem image that we'll later pass to QEMU.
+  # This will have a `run.sh` script will which use the artifacts inside to run
+  # on the host.
+  rm -f $tmpdir/libc-test.img
+  dd if=/dev/null of=$tmpdir/libc-test.img bs=1M seek=50
+  mkfs.ext2 -F $tmpdir/libc-test.img
+  rm -rf $tmpdir/mount
+  mkdir $tmpdir/mount
+  mount -t ext2 -o loop $tmpdir/libc-test.img $tmpdir/mount
+
+  # If we have a cross compiler, then we just do the standard rigamarole of
+  # cross-compiling an executable and then the script to run just executes the
+  # binary.
+  #
+  # If we don't have a cross-compiler, however, then we need to do some crazy
+  # acrobatics to get this to work.  Generate all.{c,rs} on the host which will
+  # be compiled inside QEMU. Do this here because compiling syntex_syntax in
+  # QEMU would time out basically everywhere.
+  if [ "$CAN_CROSS" = "1" ]; then
+    cargo build --manifest-path libc-test/Cargo.toml --target $TARGET
+    cp $CARGO_TARGET_DIR/$TARGET/debug/libc-test $tmpdir/mount/
+    echo 'exec $1/libc-test' > $tmpdir/mount/run.sh
+  else
+    rm -rf $tmpdir/generated
+    mkdir -p $tmpdir/generated
+    cargo build --manifest-path libc-test/generate-files/Cargo.toml
+    (cd libc-test && TARGET=$TARGET OUT_DIR=$tmpdir/generated SKIP_COMPILE=1 \
+      $CARGO_TARGET_DIR/debug/generate-files)
+
+    # Copy this folder into the mounted image, the `run.sh` entry point, and
+    # overwrite the standard libc-test Cargo.toml with the overlay one which will
+    # assume the all.{c,rs} test files have already been generated
+    mkdir $tmpdir/mount/libc
+    cp -r Cargo.* libc-test src ci $tmpdir/mount/libc/
+    ln -s libc-test/target $tmpdir/mount/libc/target
+    cp ci/run-qemu.sh $tmpdir/mount/run.sh
+    echo $TARGET | tee -a $tmpdir/mount/TARGET
+    cp $tmpdir/generated/* $tmpdir/mount/libc/libc-test
+    cp libc-test/run-generated-Cargo.toml $tmpdir/mount/libc/libc-test/Cargo.toml
+  fi
+
+  umount $tmpdir/mount
+
+  # If we can use kvm, prefer that, otherwise just fall back to user-space
+  # emulation.
+  if kvm-ok; then
+    program=kvm
+  else
+    program=qemu-system-x86_64
+  fi
+
+  # Pass -snapshot to prevent tampering with the disk images, this helps when
+  # running this script in development. The two drives are then passed next,
+  # first is the OS and second is the one we just made. Next the network is
+  # configured to work (I'm not entirely sure how), and then finally we turn off
+  # graphics and redirect the serial console output to out.log.
+  $program \
+    -m 1024 \
+    -snapshot \
+    -drive if=virtio,file=$tmpdir/$QEMU \
+    -drive if=virtio,file=$tmpdir/libc-test.img \
+    -net nic,model=virtio \
+    -net user \
+    -nographic \
+    -vga none 2>&1 | tee $CARGO_TARGET_DIR/out.log
+  exec grep "^PASSED .* tests" $CARGO_TARGET_DIR/out.log
+fi
+
+case "$TARGET" in
+  *-apple-ios)
+    cargo rustc --manifest-path libc-test/Cargo.toml --target $TARGET -- \
+        -C link-args=-mios-simulator-version-min=7.0
+    ;;
+
+  *)
+    cargo build --manifest-path libc-test/Cargo.toml --target $TARGET
+    ;;
+esac
+
+case "$TARGET" in
+  arm-linux-androideabi)
+    emulator @arm-21 -no-window &
+    adb wait-for-device
+    adb push $CARGO_TARGET_DIR/$TARGET/debug/libc-test /data/libc-test
+    adb shell /data/libc-test 2>&1 | tee /tmp/out
+    grep "^PASSED .* tests" /tmp/out
+    ;;
+
+  arm-unknown-linux-gnueabihf)
+    qemu-arm -L /usr/arm-linux-gnueabihf $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  mips-unknown-linux-gnu)
+    qemu-mips -L /usr/mips-linux-gnu $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  mipsel-unknown-linux-musl)
+    qemu-mipsel -L /toolchain $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  powerpc-unknown-linux-gnu)
+    qemu-ppc -L /usr/powerpc-linux-gnu $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  powerpc64-unknown-linux-gnu)
+    qemu-ppc64 -L /usr/powerpc64-linux-gnu $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  aarch64-unknown-linux-gnu)
+    qemu-aarch64 -L /usr/aarch64-linux-gnu/ $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+
+  *-rumprun-netbsd)
+    rumprun-bake hw_virtio /tmp/libc-test.img $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    qemu-system-x86_64 -nographic -vga none -m 64 \
+        -kernel /tmp/libc-test.img 2>&1 | tee /tmp/out &
+    sleep 5
+    grep "^PASSED .* tests" /tmp/out
+    ;;
+
+  *)
+    $CARGO_TARGET_DIR/$TARGET/debug/libc-test
+    ;;
+esac