#!/bin/sh
set -e
-TARGET=$(rustc --print target-spec-json -Z unstable-options | jq '.["llvm-target"]' -r)
+USAGE=$(cat <<"EOF"
+ COMMANDS
+
+./miri install <flags>:
+Installs the miri driver and cargo-miri. <flags> are passed to `cargo
+install`. Sets up the rpath such that the installed binary should work in any
+working directory.
+
+./miri build <flags>:
+Just build miri. <flags> are passed to `cargo build`.
+
+./miri check <flags>:
+Just check miri. <flags> are passed to `cargo check`.
+
+./miri test <flags>:
+Build miri, set up a sysroot and then run the test suite. <flags> are passed
+to the final `cargo test` invocation.
+
+./miri run <flags>:
+Build miri, set up a sysroot and then run the driver with the given <flags>.
+
+All commands also exist in a "-debug" variant (e.g. "./miri run-debug
+<flags>") which uses debug builds instead of release builds, for faster build
+times and slower execution times.
+
+ ENVIRONMENT VARIABLES
+
+MIRI_SYSROOT:
+If already set, the "sysroot setup" step is skipped.
+
+CARGO_EXTRA_FLAGS:
+Pass extra flags to all cargo invocations.
+EOF
+)
+
+## Preparation
+TARGET=$(rustc --version --verbose | grep "^host:" | cut -d ' ' -f 2)
SYSROOT=$(rustc --print sysroot)
+LIBDIR=$SYSROOT/lib/rustlib/$TARGET/lib
+if ! test -d "$LIBDIR"; then
+ echo "Something went wrong determining the library dir."
+ echo "I got $LIBDIR but that does not exist."
+ echo "Please report a bug at https://github.com/rust-lang/miri/issues."
+ exit 2
+fi
# We set the rpath so that Miri finds the private rustc libraries it needs.
# We enable debug-assertions to get tracing.
# We enable line-only debuginfo for backtraces.
-export RUSTFLAGS="-C link-args=-Wl,-rpath,$SYSROOT/lib/rustlib/$TARGET/lib -C debug-assertions -C debuginfo=1"
+export RUSTFLAGS="-C link-args=-Wl,-rpath,$LIBDIR -C debug-assertions -C debuginfo=1 $RUSTC_EXTRA_FLAGS"
-COMMAND="$1"
-shift
+## Helper functions
-case "$COMMAND" in
-install)
- exec cargo install --path "$(dirname "$0")" --force --locked --offline
- ;;
-build|test|run)
- # Basic build
- cargo build --release
-
- # We we want to just build, we are done.
- if [ "$COMMAND" = "build" ]; then exit 0; fi
+# Build a sysroot and set MIRI_SYSROOT to use it. Arguments are passed to `cargo miri setup`.
+build_sysroot() {
+ # Build once, for the user to see.
+ cargo run $CARGO_BUILD_FLAGS --bin cargo-miri -- miri setup "$@"
+ # Call again, to just set env var.
+ export MIRI_SYSROOT="$(cargo run $CARGO_BUILD_FLAGS -q --bin cargo-miri -- miri setup --print-sysroot "$@")"
+}
- # Get ourselves a sysroot
+# Prepare and set MIRI_SYSROOT. Respects `MIRI_TEST_TARGET` and takes into account
+# locally built vs. distributed rustc.
+find_sysroot() {
if [ -n "$MIRI_SYSROOT" ]; then
- # sysroot already set
- true
- elif echo "$SYSROOT" | egrep -q 'build/[^/]+/stage'; then
- # a local rustc build, assume we have a proper libstd in $SYSROOT
- true
+ # Sysroot already set, use that.
+ return 0
+ fi
+ # We need to build a sysroot.
+ if [ -n "$MIRI_TEST_TARGET" ]; then
+ build_sysroot --target "$MIRI_TEST_TARGET"
else
- # we have to build a sysroot
- cargo run --release --bin cargo-miri -- miri setup
- export MIRI_SYSROOT=$HOME/.cache/miri/HOST
+ build_sysroot
fi
+}
- exec cargo "$COMMAND" --release "$@"
+## Main
+
+# Determine command.
+COMMAND="$1"
+[ $# -gt 0 ] && shift
+
+# Determine flags passed to all cargo invocations.
+# This is a bit more annoying that one would hope due to
+# <https://github.com/rust-lang/cargo/issues/6992>.
+case "$COMMAND" in
+*-debug)
+ CARGO_INSTALL_FLAGS="--debug $CARGO_EXTRA_FLAGS"
+ CARGO_BUILD_FLAGS="$CARGO_EXTRA_FLAGS"
+ ;;
+*)
+ CARGO_INSTALL_FLAGS="$CARGO_EXTRA_FLAGS"
+ CARGO_BUILD_FLAGS="--release $CARGO_EXTRA_FLAGS"
+ ;;
+esac
+
+# Run command.
+case "$COMMAND" in
+install|install-debug)
+ # "--locked" to respect the Cargo.lock file if it exists,
+ # "--offline" to avoid querying the registry (for yanked packages).
+ exec cargo install $CARGO_INSTALL_FLAGS --path "$(dirname "$0")" --force --locked --offline "$@"
+ ;;
+check|check-debug)
+ # Check, and let caller control flags.
+ exec cargo check $CARGO_BUILD_FLAGS "$@"
+ ;;
+build|build-debug)
+ # Build, and let caller control flags.
+ exec cargo build $CARGO_BUILD_FLAGS "$@"
+ ;;
+test|test-debug)
+ # First build and get a sysroot.
+ cargo build $CARGO_BUILD_FLAGS
+ find_sysroot
+ # Then test, and let caller control flags.
+ exec cargo test $CARGO_BUILD_FLAGS "$@"
+ ;;
+run|run-debug)
+ # Scan for "--target" to set the "MIRI_TEST_TARGET" env var so
+ # that we set the MIRI_SYSROOT up the right way.
+ if [ -z "$MIRI_TEST_TARGET" ]; then
+ for ARG in "$@"; do
+ if [ "$LAST_ARG" = "--target" ]; then
+ # Found it!
+ export MIRI_TEST_TARGET="$ARG"
+ break
+ fi
+ LAST_ARG="$ARG"
+ done
+ fi
+ # First build and get a sysroot.
+ cargo build $CARGO_BUILD_FLAGS
+ find_sysroot
+ # Then run the actual command.
+ exec cargo run $CARGO_BUILD_FLAGS -- --sysroot "$MIRI_SYSROOT" "$@"
;;
+*)
+ echo "Unknown command: $COMMAND"
+ echo
+ echo "$USAGE"
+ exit 1
esac
projects / rust.git / blobdiff