mirror of
https://github.com/SerenityOS/serenity
synced 2024-07-22 10:36:24 +00:00
Toolchain: Move GDB build to a separate script
Target GDB is only used for debugging the kernel, which is not relevant
to most people. Starting with 924758c6f8, GDB would always be built
as part of the toolchain if the user didn't have it installed. This is
unnecessary.
This commit adds a separate script for building GDB, which the user
needs to explicitly invoke. A message is added to Meta/debug-kernel.sh
which alerts the user to this fact.
This commit is contained in:
Daniel Bertalan
Tim Flynn
parent
550635164d
commit
5ca1bd55a0
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@ -9,7 +9,9 @@ fi
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# Set this environment variable to override the default debugger.
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#
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if [ -z "$SERENITY_KERNEL_DEBUGGER" ]; then
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# Prepend the toolchain bin directory so we pick up GDB from there
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# Prepend the toolchain's GDB bin directory so we pick up GDB from there
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PATH="$SCRIPT_DIR/../Toolchain/Local/$SERENITY_ARCH-gdb/bin:$PATH"
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# GDB used to be installed directly inside the toolchain bin directory
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PATH="$SCRIPT_DIR/../Toolchain/Local/$SERENITY_ARCH/bin:$PATH"
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if command -v "$SERENITY_ARCH-pc-serenity-gdb" >/dev/null; then
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@ -20,6 +22,9 @@ if [ -z "$SERENITY_KERNEL_DEBUGGER" ]; then
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SERENITY_KERNEL_DEBUGGER="gdb"
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else
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echo "Error: No suitable GDB installation found." >&2
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echo "Please install $SERENITY_ARCH-elf-gdb or build it with Toolchain/BuildGDB.sh $SERENITY_ARCH" >&2
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# Prevent tmux from dying instantly by waiting for user input
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read -rp "Press Enter to exit"
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exit 1
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fi
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fi
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129
Toolchain/BuildGDB.sh
Executable file
129
Toolchain/BuildGDB.sh
Executable file
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@ -0,0 +1,129 @@
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#!/usr/bin/env bash
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set -e
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GDB_VERSION="13.1"
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GDB_MD5SUM="4aaad768ff2585464173c091947287ec"
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GDB_NAME="gdb-$GDB_VERSION"
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GDB_PKG="${GDB_NAME}.tar.xz"
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GDB_BASE_URL="https://ftp.gnu.org/gnu/gdb"
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DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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ARCH=${1:-"x86_64"}
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TARGET="$ARCH-pc-serenity"
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PREFIX="$DIR/Local/$ARCH-gdb"
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echo "Building GDB $GDB_VERSION for $TARGET"
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MD5SUM="md5sum"
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NPROC="nproc"
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SYSTEM_NAME="$(uname -s)"
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if [ "$SYSTEM_NAME" = "OpenBSD" ]; then
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MD5SUM="md5 -q"
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NPROC="sysctl -n hw.ncpuonline"
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export CC=egcc
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export CXX=eg++
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export with_gmp=/usr/local
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export LDFLAGS=-Wl,-z,notext
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elif [ "$SYSTEM_NAME" = "FreeBSD" ]; then
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MD5SUM="md5 -q"
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NPROC="sysctl -n hw.ncpu"
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export with_gmp=/usr/local
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export with_mpfr=/usr/local
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elif [ "$SYSTEM_NAME" = "Darwin" ]; then
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MD5SUM="md5 -q"
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NPROC="sysctl -n hw.ncpu"
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fi
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if [ -z "$MAKEJOBS" ]; then
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MAKEJOBS=$($NPROC)
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fi
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buildstep() {
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NAME=$1
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shift
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"$@" 2>&1 | sed $'s|^|\x1b[34m['"${NAME}"$']\x1b[39m |'
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}
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missing_lib() {
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buildstep dependencies echo "Please make sure to install the $lib library and headers." >&2
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exit 1
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}
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config_args=()
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for lib in gmp isl mpfr mpc; do
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buildstep dependencies echo "Checking whether the $lib library and headers are available..."
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if [ "$SYSTEM_NAME" = "Darwin" ]; then
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[ "$lib" = "mpc" ] && formula_name="libmpc" || formula_name="$lib"
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config_args+=("--with-$lib=$(brew --prefix --installed "$formula_name")") || missing_lib $lib
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else
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if ! ${CC:-cc} -I /usr/local/include -L /usr/local/lib -l$lib -o /dev/null -xc - >/dev/null <<PROGRAM
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#include <$lib.h>
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int main() {}
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PROGRAM
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then
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missing_lib $lib
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fi
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fi
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done
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if [ "$SYSTEM_NAME" = "Darwin" ]; then
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config_args+=("--with-libgmp-prefix=$(brew --prefix gmp)")
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fi
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mkdir -p "$DIR/Tarballs"
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pushd "$DIR/Tarballs"
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md5=""
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if [ -e "$GDB_PKG" ]; then
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md5="$($MD5SUM "$GDB_PKG" | cut -f1 -d' ')"
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fi
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if [ "$md5" != "$GDB_MD5SUM" ]; then
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curl -C - -O "$GDB_BASE_URL/$GDB_PKG"
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else
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echo "Skipped downloading $GDB_PKG"
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fi
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md5="$($MD5SUM "$GDB_PKG" | cut -f1 -d' ')"
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echo "gdb md5='$md5'"
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if [ "$md5" != "$GDB_MD5SUM" ] ; then
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echo "gdb md5 sum mismatching, please run script again."
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rm -f "$GDB_PKG"
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exit 1
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fi
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# If the source directory exists, re-extract it again in case the patches have changed.
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if [ -d ${GDB_NAME} ]; then
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rm -rf "${GDB_NAME}"
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rm -rf "$DIR/Build/$ARCH-gdb"
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fi
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echo "Extracting gdb..."
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tar -xJf "$GDB_PKG"
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pushd "$GDB_NAME"
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for patch in "${DIR}"/Patches/gdb/*.patch; do
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patch -p1 < "${patch}" > /dev/null
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done
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popd
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popd
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mkdir -p "$DIR/Build"
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rm -rf "$DIR/Build/$ARCH-gdb"
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mkdir "$DIR/Build/$ARCH-gdb"
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pushd "$DIR/Build/$ARCH-gdb"
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unset PKG_CONFIG_LIBDIR # Just in case
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buildstep "gdb/configure" "$DIR"/Tarballs/$GDB_NAME/configure --prefix="$PREFIX" \
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--target="$TARGET" \
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--disable-werror \
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--disable-nls \
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--with-python \
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"${config_args[@]}" || exit 1
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buildstep "gdb/build" make MAKEINFO=true -j "$MAKEJOBS" || exit 1
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buildstep "gdb/install" make MAKEINFO=true install || exit 1
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popd
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@ -80,12 +80,6 @@ BINUTILS_NAME="binutils-$BINUTILS_VERSION"
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BINUTILS_PKG="${BINUTILS_NAME}.tar.gz"
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BINUTILS_BASE_URL="https://ftp.gnu.org/gnu/binutils"
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GDB_VERSION="13.1"
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GDB_MD5SUM="92b70971e81a450f6b3e1cf568671cfa"
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GDB_NAME="gdb-$GDB_VERSION"
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GDB_PKG="${GDB_NAME}.tar.gz"
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GDB_BASE_URL="https://ftp.gnu.org/gnu/gdb"
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# Note: If you bump the gcc version, you also have to update the matching
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# GCC_VERSION variable in the project's root CMakeLists.txt
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GCC_VERSION="12.2.0"
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@ -100,21 +94,6 @@ buildstep() {
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"$@" 2>&1 | sed $'s|^|\x1b[34m['"${NAME}"$']\x1b[39m |'
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}
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has_gdb() {
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ARCH=$1
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ARCH_DASH="${ARCH//_/-}"
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if command -v gdb >/dev/null && gdb -ex 'set architecture' -ex 'quit' 2>&1 | grep "$ARCH_DASH"; then
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return 0
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else
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command -v "$ARCH"-elf-gdb >/dev/null
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fi
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}
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NEEDS_GDB=1
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if has_gdb "$ARCH"; then
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NEEDS_GDB=0
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fi
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# === DEPENDENCIES ===
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buildstep dependencies echo "Checking whether 'make' is available..."
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if ! command -v ${MAKE:-make} >/dev/null; then
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@ -197,22 +176,6 @@ popd
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# === DOWNLOAD AND PATCH ===
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pushd "$DIR/Tarballs"
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# Build gdb for cross-debugging support
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if [ $NEEDS_GDB -eq 1 ]; then
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echo "GDB not found for $ARCH. Will build it from source."
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md5=""
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if [ -e "$GDB_PKG" ]; then
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md5="$($MD5SUM $GDB_PKG | cut -f1 -d' ')"
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echo "gdb md5='$md5'"
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fi
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if [ "$md5" != ${GDB_MD5SUM} ] ; then
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rm -f $GDB_PKG
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curl -LO "$GDB_BASE_URL/$GDB_PKG"
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else
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echo "Skipped downloading gdb"
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fi
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fi
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md5=""
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if [ -e "$BINUTILS_PKG" ]; then
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md5="$($MD5SUM $BINUTILS_PKG | cut -f1 -d' ')"
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@ -237,29 +200,6 @@ pushd "$DIR/Tarballs"
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echo "Skipped downloading gcc"
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fi
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if [ $NEEDS_GDB -eq 1 ]; then
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if [ -d ${GDB_NAME} ]; then
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rm -rf "${GDB_NAME}"
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rm -rf "$DIR/Build/$ARCH/$GDB_NAME"
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fi
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echo "Extracting GDB..."
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tar -xzf ${GDB_PKG}
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pushd ${GDB_NAME}
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if [ "$git_patch" = "1" ]; then
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git init > /dev/null
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git add . > /dev/null
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git commit -am "BASE" > /dev/null
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git am "${DIR}"/Patches/gdb/*.patch > /dev/null
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else
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for patch in "${DIR}"/Patches/gdb/*.patch; do
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patch -p1 < "${patch}" > /dev/null
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done
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fi
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$MD5SUM "$DIR"/Patches/gdb/*.patch > .patch.applied
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popd
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fi
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patch_md5="$(${MD5SUM} "${DIR}"/Patches/binutils/*.patch)"
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if [ ! -d "${BINUTILS_NAME}" ] || [ "$(cat ${BINUTILS_NAME}/.patch.applied)" != "${patch_md5}" ]; then
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@ -335,43 +275,6 @@ mkdir -p "$DIR/Build/$ARCH"
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pushd "$DIR/Build/$ARCH"
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unset PKG_CONFIG_LIBDIR # Just in case
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if [ $NEEDS_GDB -eq 1 ]; then
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rm -rf gdb
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mkdir -p gdb
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pushd gdb
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echo "XXX configure gdb"
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if [ "$SYSTEM_NAME" = "Darwin" ]; then
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buildstep "gdb/configure" "$DIR"/Tarballs/$GDB_NAME/configure --prefix="$PREFIX" \
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--target="$TARGET" \
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--with-sysroot="$SYSROOT" \
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--enable-shared \
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--disable-werror \
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--with-libgmp-prefix="$(brew --prefix gmp)" \
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--with-gmp="$(brew --prefix gmp)" \
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--with-isl="$(brew --prefix isl)" \
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--with-mpc="$(brew --prefix libmpc)" \
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--with-mpfr="$(brew --prefix mpfr)" \
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--disable-nls \
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${TRY_USE_LOCAL_TOOLCHAIN:+"--quiet"} || exit 1
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else
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buildstep "gdb/configure" "$DIR"/Tarballs/$GDB_NAME/configure --prefix="$PREFIX" \
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--target="$TARGET" \
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--with-sysroot="$SYSROOT" \
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--enable-shared \
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--disable-werror \
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--disable-nls \
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${TRY_USE_LOCAL_TOOLCHAIN:+"--quiet"} || exit 1
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fi
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echo "XXX build gdb"
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buildstep "gdb/build" "$MAKE" MAKEINFO=true -j "$MAKEJOBS" || exit 1
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buildstep "gdb/install" "$MAKE" MAKEINFO=true install || exit 1
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popd
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fi
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rm -rf binutils
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mkdir -p binutils
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