ladybird/Meta/serenity.sh
Daniel Bertalan 0f2e18403c Meta: Make serenity.sh gdb work with the Clang toolchain
We now pass along the toolchain type to all subcommands. This ensures
that gdb will load the correct debug information for kernels compiled
with Clang, and the following warning won't appear with the GNU
toolchain:

> WARNING: unknown toolchain 'gdb'. Defaulting to GNU.
>         Valid values are 'Clang', 'GNU' (default)
2022-02-19 11:36:08 +01:00

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#!/usr/bin/env bash
set -e
ARG0=$0
print_help() {
NAME=$(basename "$ARG0")
cat <<EOF
Usage: $NAME COMMAND [TARGET] [TOOLCHAIN] [ARGS...]
Supported TARGETs: aarch64, i686, x86_64, lagom. Defaults to SERENITY_ARCH, or i686 if not set.
Supported TOOLCHAINs: GNU, Clang. Defaults to GNU if not set.
Supported COMMANDs:
build: Compiles the target binaries, [ARGS...] are passed through to ninja
install: Installs the target binary
image: Creates a disk image with the installed binaries
run: TARGET lagom: $NAME run lagom LAGOM_EXECUTABLE [ARGS...]
Runs the Lagom-built LAGOM_EXECUTABLE on the build host, e.g.
'shell' or 'js', [ARGS...] are passed through to the executable
All other TARGETs: $NAME run [TARGET] [KERNEL_CMD_LINE]
Runs the built image in QEMU, and optionally passes the
KERNEL_CMD_LINE to the Kernel
gdb: Same as run, but also starts a gdb remote session.
TARGET lagom: $NAME gdb lagom LAGOM_EXECUTABLE [-ex 'any gdb command']...
Passes through '-ex' commands to gdb
All other TARGETs: $NAME gdb [TARGET] [KERNEL_CMD_LINE] [-ex 'any gdb command']...
If specified, passes the KERNEL_CMD_LINE to the Kernel
Passes through '-ex' commands to gdb
test: TARGET lagom: $NAME test lagom [TEST_NAME_PATTERN]
Runs the unit tests on the build host, or if TEST_NAME_PATTERN
is specified tests matching it.
All other TARGETs: $NAME test [TARGET]
Runs the built image in QEMU in self-test mode, by passing
system_mode=self-test to the Kernel
delete: Removes the build environment for TARGET
recreate: Deletes and re-creates the build environment for TARGET
rebuild: Deletes and re-creates the build environment, and compiles for TARGET
kaddr2line: $NAME kaddr2line TARGET ADDRESS
Resolves the ADDRESS in the Kernel/Kernel binary to a file:line
addr2line: $NAME addr2line TARGET BINARY_FILE ADDRESS
Resolves the ADDRESS in BINARY_FILE to a file:line. It will
attempt to find the BINARY_FILE in the appropriate build directory
rebuild-toolchain: Deletes and re-builds the TARGET's toolchain
rebuild-world: Deletes and re-builds the toolchain and build environment for TARGET.
copy-src: Same as image, but also copies the project's source tree to ~/Source/serenity
in the built disk image.
Examples:
$NAME run i686 smp=on
Runs the image in QEMU passing "smp=on" to the kernel command line
$NAME run
Runs the image for the default TARGET i686 in QEMU
$NAME run lagom js -A
Runs the Lagom-built js(1) REPL
$NAME test lagom
Runs the unit tests on the build host
$NAME kaddr2line i686 0x12345678
Resolves the address 0x12345678 in the Kernel binary
$NAME addr2line i686 WindowServer 0x12345678
Resolves the address 0x12345678 in the WindowServer binary
$NAME gdb i686 smp=on -ex 'hb *init'
Runs the image for the TARGET i686 in qemu and attaches a gdb session
setting a breakpoint at the init() function in the Kernel.
EOF
}
die() {
>&2 echo "die: $*"
exit 1
}
usage() {
>&2 print_help
exit 1
}
CMD=$1
[ -n "$CMD" ] || usage
shift
if [ "$CMD" = "help" ]; then
print_help
exit 0
fi
if [ -n "$1" ]; then
TARGET="$1"; shift
else
TARGET="${SERENITY_ARCH:-"i686"}"
fi
CMAKE_ARGS=()
# Toolchain selection only applies to non-lagom targets.
if [ "$TARGET" != "lagom" ]; then
case "$1" in
GNU|Clang)
TOOLCHAIN_TYPE="$1"; shift
;;
*)
if [ -n "$1" ]; then
echo "WARNING: unknown toolchain '$1'. Defaulting to GNU."
echo " Valid values are 'Clang', 'GNU' (default)"
fi
TOOLCHAIN_TYPE="GNU"
;;
esac
CMAKE_ARGS+=( "-DSERENITY_TOOLCHAIN=$TOOLCHAIN_TYPE" )
fi
CMD_ARGS=( "$@" )
get_top_dir() {
git rev-parse --show-toplevel
}
is_valid_target() {
if [ "$TARGET" = "aarch64" ]; then
CMAKE_ARGS+=("-DSERENITY_ARCH=aarch64")
return 0
fi
if [ "$TARGET" = "i686" ]; then
CMAKE_ARGS+=("-DSERENITY_ARCH=i686")
return 0
fi
if [ "$TARGET" = "x86_64" ]; then
CMAKE_ARGS+=("-DSERENITY_ARCH=x86_64")
return 0
fi
if [ "$TARGET" = "lagom" ]; then
CMAKE_ARGS+=("-DBUILD_LAGOM=ON")
return 0
fi
return 1
}
create_build_dir() {
if [ "$TARGET" != "lagom" ]; then
cmake -GNinja "${CMAKE_ARGS[@]}" -S "$SERENITY_SOURCE_DIR/Meta/CMake/Superbuild" -B "$SUPER_BUILD_DIR"
else
cmake -GNinja "${CMAKE_ARGS[@]}" -S "$SERENITY_SOURCE_DIR/Meta/Lagom" -B "$SUPER_BUILD_DIR"
fi
}
pick_gcc() {
local BEST_VERSION=0
local BEST_GCC_CANDIDATE=""
for GCC_CANDIDATE in egcc gcc gcc-11 gcc-12 /usr/local/bin/gcc-11 /opt/homebrew/bin/gcc-11; do
if ! command -v $GCC_CANDIDATE >/dev/null 2>&1; then
continue
fi
if $GCC_CANDIDATE --version 2>&1 | grep "Apple clang" >/dev/null; then
continue
fi
if ! $GCC_CANDIDATE -dumpversion >/dev/null 2>&1; then
continue
fi
local VERSION=""
VERSION="$($GCC_CANDIDATE -dumpversion)"
local MAJOR_VERSION="${VERSION%%.*}"
if [ "$MAJOR_VERSION" -gt "$BEST_VERSION" ]; then
BEST_VERSION=$MAJOR_VERSION
BEST_GCC_CANDIDATE="$GCC_CANDIDATE"
fi
done
CMAKE_ARGS+=("-DCMAKE_C_COMPILER=$BEST_GCC_CANDIDATE")
CMAKE_ARGS+=("-DCMAKE_CXX_COMPILER=${BEST_GCC_CANDIDATE/gcc/g++}")
if [ "$BEST_VERSION" -lt 11 ]; then
die "Please make sure that GCC version 11 or higher is installed."
fi
}
cmd_with_target() {
is_valid_target || ( >&2 echo "Unknown target: $TARGET"; usage )
pick_gcc
if [ ! -d "$SERENITY_SOURCE_DIR" ]; then
SERENITY_SOURCE_DIR="$(get_top_dir)"
export SERENITY_SOURCE_DIR
fi
local TARGET_TOOLCHAIN=""
if [[ "$TOOLCHAIN_TYPE" != "GNU" && "$TARGET" != "lagom" ]]; then
# Only append the toolchain if it's not GNU
TARGET_TOOLCHAIN=$(echo "$TOOLCHAIN_TYPE" | tr "[:upper:]" "[:lower:]")
fi
BUILD_DIR="$SERENITY_SOURCE_DIR/Build/$TARGET$TARGET_TOOLCHAIN"
if [ "$TARGET" != "lagom" ]; then
export SERENITY_ARCH="$TARGET"
export SERENITY_TOOLCHAIN="$TOOLCHAIN_TYPE"
if [ "$TOOLCHAIN_TYPE" = "Clang" ]; then
TOOLCHAIN_DIR="$SERENITY_SOURCE_DIR/Toolchain/Local/clang"
else
TOOLCHAIN_DIR="$SERENITY_SOURCE_DIR/Toolchain/Local/$TARGET_TOOLCHAIN/$TARGET"
fi
SUPER_BUILD_DIR="$SERENITY_SOURCE_DIR/Build/superbuild-$TARGET$TARGET_TOOLCHAIN"
else
SUPER_BUILD_DIR="$BUILD_DIR"
CMAKE_ARGS+=("-DCMAKE_INSTALL_PREFIX=$SERENITY_SOURCE_DIR/Build/lagom-install")
fi
}
ensure_target() {
[ -f "$SUPER_BUILD_DIR/build.ninja" ] || create_build_dir
}
run_tests() {
local TEST_NAME="$1"
export CTEST_OUTPUT_ON_FAILURE=1
if [ -n "$TEST_NAME" ]; then
( cd "$BUILD_DIR" && ctest -R "$TEST_NAME" )
else
( cd "$BUILD_DIR" && ctest )
fi
}
build_target() {
if [ "$TARGET" = "lagom" ]; then
# Ensure that all lagom binaries get built, in case user first
# invoked superbuild for serenity target that doesn't set -DBUILD_LAGOM=ON
cmake -S "$SERENITY_SOURCE_DIR/Meta/Lagom" -B "$BUILD_DIR" -DBUILD_LAGOM=ON
fi
# With zero args, we are doing a standard "build"
# With multiple args, we are doing an install/image/run
if [ $# -eq 0 ]; then
cmake --build "$SUPER_BUILD_DIR"
else
ninja -C "$BUILD_DIR" -- "$@"
fi
}
build_image() {
if [ "$SERENITY_RUN" = "limine" ]; then
build_target limine-image
else
build_target image
fi
}
delete_target() {
[ ! -d "$BUILD_DIR" ] || rm -rf "$BUILD_DIR"
[ ! -d "$SUPER_BUILD_DIR" ] || rm -rf "$SUPER_BUILD_DIR"
}
build_toolchain() {
echo "build_toolchain: $TOOLCHAIN_DIR"
if [ "$TOOLCHAIN_TYPE" = "Clang" ]; then
( cd "$SERENITY_SOURCE_DIR/Toolchain" && ./BuildClang.sh )
else
( cd "$SERENITY_SOURCE_DIR/Toolchain" && ARCH="$TARGET" ./BuildIt.sh )
fi
}
ensure_toolchain() {
[ -d "$TOOLCHAIN_DIR" ] || build_toolchain
# FIXME: Remove this check when most people have already updated their toolchain
if [ "$TOOLCHAIN_TYPE" = "GNU" ]; then
local ld_version
ld_version="$("$TOOLCHAIN_DIR"/bin/"$TARGET"-pc-serenity-ld -v)"
local expected_version="GNU ld (GNU Binutils) 2.38"
if [ "$ld_version" != "$expected_version" ]; then
echo "Your toolchain has an old version of binutils installed."
echo " installed version: \"$ld_version\""
echo " expected version: \"$expected_version\""
echo "Please run $ARG0 rebuild-toolchain $TARGET to update it."
exit 1
fi
fi
}
delete_toolchain() {
[ ! -d "$TOOLCHAIN_DIR" ] || rm -rf "$TOOLCHAIN_DIR"
}
kill_tmux_session() {
local TMUX_SESSION
TMUX_SESSION="$(tmux display-message -p '#S')"
[ -z "$TMUX_SESSION" ] || tmux kill-session -t "$TMUX_SESSION"
}
set_tmux_title() {
printf "\033]2;%s\033\\" "$1"
}
lagom_unsupported() {
[ "$TARGET" != "lagom" ] || die "${1:-"Command '$CMD' not supported for the lagom target"}"
}
run_gdb() {
local GDB_ARGS=()
local PASS_ARG_TO_GDB=""
local KERNEL_CMD_LINE=""
local LAGOM_EXECUTABLE=""
for arg in "${CMD_ARGS[@]}"; do
if [ "$PASS_ARG_TO_GDB" != "" ]; then
GDB_ARGS+=( "$PASS_ARG_TO_GDB" "$arg" )
PASS_ARG_TO_GDB=""
elif [ "$arg" = "-ex" ]; then
PASS_ARG_TO_GDB="$arg"
elif [[ "$arg" =~ ^-.*$ ]]; then
die "Don't know how to handle argument: $arg"
else
if [ "$TARGET" = "lagom" ]; then
if [ "$LAGOM_EXECUTABLE" != "" ]; then
die "Lagom executable can't be specified more than once"
fi
LAGOM_EXECUTABLE="$arg"
else
if [ "$KERNEL_CMD_LINE" != "" ]; then
die "Kernel command line can't be specified more than once"
fi
KERNEL_CMD_LINE="$arg"
fi
fi
done
if [ "$PASS_ARG_TO_GDB" != "" ]; then
GDB_ARGS+=( "$PASS_ARG_TO_GDB" )
fi
if [ "$TARGET" = "lagom" ]; then
gdb "$BUILD_DIR/$LAGOM_EXECUTABLE" "${GDB_ARGS[@]}"
else
if [ -n "$KERNEL_CMD_LINE" ]; then
export SERENITY_KERNEL_CMDLINE="$KERNEL_CMD_LINE"
fi
sleep 1
"$(get_top_dir)/Meta/debug-kernel.sh" "${GDB_ARGS[@]}"
fi
}
if [[ "$CMD" =~ ^(build|install|image|copy-src|run|gdb|test|rebuild|recreate|kaddr2line|addr2line|setup-and-run)$ ]]; then
cmd_with_target
[[ "$CMD" != "recreate" && "$CMD" != "rebuild" ]] || delete_target
[ "$TARGET" = "lagom" ] || ensure_toolchain
ensure_target
case "$CMD" in
build)
build_target "$@"
;;
install)
build_target
build_target install
;;
image)
lagom_unsupported
build_target
build_target install
build_image
;;
copy-src)
lagom_unsupported
build_target
build_target install
export SERENITY_COPY_SOURCE=1
build_image
;;
run)
if [ "$TARGET" = "lagom" ]; then
build_target "${CMD_ARGS[0]}"
"$BUILD_DIR/${CMD_ARGS[0]}" "${CMD_ARGS[@]:1}"
else
build_target
build_target install
build_image
if [ -n "${CMD_ARGS[0]}" ]; then
export SERENITY_KERNEL_CMDLINE="${CMD_ARGS[0]}"
fi
build_target run
fi
;;
gdb)
command -v tmux >/dev/null 2>&1 || die "Please install tmux!"
if [ "$TARGET" = "lagom" ]; then
[ $# -ge 1 ] || usage
build_target "$@"
run_gdb "${CMD_ARGS[@]}"
else
build_target
build_target install
build_image
tmux new-session "$ARG0" __tmux_cmd "$TARGET" "$TOOLCHAIN_TYPE" run "${CMD_ARGS[@]}" \; set-option -t 0 mouse on \; split-window "$ARG0" __tmux_cmd "$TARGET" "$TOOLCHAIN_TYPE" gdb "${CMD_ARGS[@]}" \;
fi
;;
test)
build_target
if [ "$TARGET" = "lagom" ]; then
run_tests "${CMD_ARGS[0]}"
else
build_target install
build_image
# In contrast to CI, we don't set 'panic=shutdown' here,
# in case the user wants to inspect qemu some more.
export SERENITY_KERNEL_CMDLINE="fbdev=off system_mode=self-test"
export SERENITY_RUN="ci"
build_target run
fi
;;
rebuild)
build_target "$@"
;;
recreate)
;;
kaddr2line)
lagom_unsupported
build_target
[ $# -ge 1 ] || usage
if [ "$TOOLCHAIN_TYPE" = "Clang" ]; then
ADDR2LINE="$TOOLCHAIN_DIR/bin/llvm-addr2line"
else
ADDR2LINE="$TOOLCHAIN_DIR/binutils/binutils/addr2line"
fi
"$ADDR2LINE" -e "$BUILD_DIR/Kernel/Kernel" "$@"
;;
addr2line)
build_target
[ $# -ge 2 ] || usage
BINARY_FILE="$1"; shift
BINARY_FILE_PATH="$BUILD_DIR/$BINARY_FILE"
if [ "$TARGET" = "lagom" ]; then
command -v addr2line >/dev/null 2>&1 || die "Please install addr2line!"
ADDR2LINE=addr2line
elif [ "$TOOLCHAIN_TYPE" = "Clang" ]; then
ADDR2LINE="$TOOLCHAIN_DIR/bin/llvm-addr2line"
else
ADDR2LINE="$TOOLCHAIN_DIR/binutils/binutils/addr2line"
fi
if [ -x "$BINARY_FILE_PATH" ]; then
"$ADDR2LINE" -e "$BINARY_FILE_PATH" "$@"
else
find "$BUILD_DIR" -name "$BINARY_FILE" -executable -type f -exec "$ADDR2LINE" -e {} "$@" \;
fi
;;
*)
build_target "$CMD" "$@"
;;
esac
elif [ "$CMD" = "delete" ]; then
cmd_with_target
delete_target
elif [ "$CMD" = "rebuild-toolchain" ]; then
cmd_with_target
lagom_unsupported "The lagom target uses the host toolchain"
delete_toolchain
ensure_toolchain
elif [ "$CMD" = "rebuild-world" ]; then
cmd_with_target
lagom_unsupported "The lagom target uses the host toolchain"
delete_toolchain
delete_target
ensure_toolchain
ensure_target
build_target
elif [ "$CMD" = "__tmux_cmd" ]; then
trap kill_tmux_session EXIT
cmd_with_target
CMD="$1"; shift
CMD_ARGS=("${CMD_ARGS[@]:1}")
if [ "$CMD" = "run" ]; then
if [ -n "${CMD_ARGS[0]}" ]; then
export SERENITY_KERNEL_CMDLINE="${CMD_ARGS[0]}"
fi
# We need to make sure qemu doesn't start until we continue in gdb
export SERENITY_EXTRA_QEMU_ARGS="${SERENITY_EXTRA_QEMU_ARGS} -d int -no-reboot -no-shutdown -S"
set_tmux_title 'qemu'
build_target run
elif [ "$CMD" = "gdb" ]; then
set_tmux_title 'gdb'
run_gdb "${CMD_ARGS[@]}"
fi
else
>&2 echo "Unknown command: $CMD"
usage
fi