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https://github.com/SerenityOS/serenity.git
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ratatatKE
b2994de9c3
debug-kernel.sh currently attempts to load "Prekernel64" as the x86_64 prekernel executable. However, the build system now produces "kernel_x86-64" instead, causing GDB to fail to load the prekernel executable during startup. Load the generated executable so that prekernel debugging works without manually adding the prekernel symbol file.
80 lines
2.9 KiB
Bash
Executable File
80 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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SCRIPT_DIR="$(dirname "${0}")"
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if [ -z "$SERENITY_ARCH" ]; then
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SERENITY_ARCH="x86_64"
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fi
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# Set this environment variable to override the default debugger.
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#
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if [ -z "$SERENITY_KERNEL_DEBUGGER" ]; then
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# Prepend the toolchain'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 "$SERENITY_ARCH-serenity-gdb" >/dev/null; then
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SERENITY_KERNEL_DEBUGGER="$SERENITY_ARCH-serenity-gdb"
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elif command -v "$SERENITY_ARCH-elf-gdb" >/dev/null; then
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SERENITY_KERNEL_DEBUGGER="$SERENITY_ARCH-elf-gdb"
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elif command -v gdb >/dev/null && gdb -ex 'set architecture' -ex 'quit' 2>&1 | grep "${SERENITY_ARCH//_/-}"; 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 $SERENITY_ARCH" >&2
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# Prevent tmux from dying instantly by waiting for user input
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read -rp "Press Enter to exit"
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exit 1
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fi
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fi
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toolchain_suffix=
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if [ "$SERENITY_TOOLCHAIN" = "Clang" ]; then
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toolchain_suffix="clang"
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fi
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# The QEMU -s option (enabled by default in ./run) sets up a debugger
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# remote on localhost:1234. So point our debugger there, and inform
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# the debugger which binary to load symbols, etc from.
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#
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if [ "$SERENITY_ARCH" = "x86_64" ]; then
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gdb_arch=i386:x86-64
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prekernel_image=kernel_x86-64
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kernel_image=Kernel_shared_object
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kernel_base=0x2000200000
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elif [ "$SERENITY_ARCH" = "aarch64" ]; then
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gdb_arch=aarch64:armv8-r
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prekernel_image=Prekernel
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kernel_image=Kernel
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kernel_base=0x0
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elif [ "$SERENITY_ARCH" = "riscv64" ]; then
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gdb_arch=riscv:rv64
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prekernel_image=Prekernel
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kernel_image=Kernel
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kernel_base=0x0
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fi
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# FIXME: This doesn't work when running QEMU inside the WSL2 VM
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if command -v wslpath >/dev/null; then
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gdb_host=$(powershell.exe "(Test-Connection -ComputerName (hostname) -Count 1).IPV4Address.IPAddressToString" | tr -d '\r\n')
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else
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gdb_host=${SERENITY_HOST_IP:-127.0.0.1}
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fi
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exec $SERENITY_KERNEL_DEBUGGER \
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-ex "file $SCRIPT_DIR/../Build/${SERENITY_ARCH:-x86_64}$toolchain_suffix/Kernel/Prekernel/$prekernel_image" \
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-ex "set confirm off" \
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-ex "directory $SCRIPT_DIR/../Build/${SERENITY_ARCH:-x86_64}$toolchain_suffix/" \
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-ex "add-symbol-file $SCRIPT_DIR/../Build/${SERENITY_ARCH:-x86_64}$toolchain_suffix/Kernel/$kernel_image -o $kernel_base" \
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-ex "set confirm on" \
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-ex "set arch $gdb_arch" \
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-ex "set print frame-arguments none" \
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-ex "set print asm-demangle on" \
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-ex "target remote ${gdb_host}:1234" \
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-ex "source $SCRIPT_DIR/serenity_gdb.py" \
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-ex "layout asm" \
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-ex "fs next" \
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"$@"
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