From: Lunaixsky <lunaixsky@qq.com>
Date: Sun, 16 Mar 2025 16:22:43 +0000 (+0000)
Subject: refine the live_debug.sh, move gdb to new tmux window
X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/commitdiff_plain/2d0cfde0212549bb2745688fadbb9c37652d3ab2?hp=71e44ac5296a7819554ce50b79129d64fd740e8f

refine the live_debug.sh, move gdb to new tmux window

add some informative logging output
---

diff --git a/lunaix-os/live_debug.sh b/lunaix-os/live_debug.sh
index d70c54d..39f9841 100755
--- a/lunaix-os/live_debug.sh
+++ b/lunaix-os/live_debug.sh
@@ -4,20 +4,47 @@ hmp_port=45454
 gdb_port=1234
 default_cmd="console=/dev/ttyS0"
 
-make ARCH=${ARCH} MODE=${MODE:-debug} all -j5 || exit -1
-
-./scripts/qemu.py \
-    scripts/qemus/qemu_x86_dev.json \
-    --qemu-dir "${QEMU_DIR}" \
-    -v QMPORT=${hmp_port} \
-    -v GDB_PORT=${gdb_port} \
-    -v ROOTFS=lunaix_rootfs.ext2 \
-    -v ARCH=${ARCH} \
-    -v KBIN=build/bin/kernel.bin \
-    -v "KCMD=${default_cmd} rootfs=/dev/block/sda init=/bin/init" \
-    -- \
-    -nographic &
-
-QMPORT=${hmp_port} gdb-multiarch \
-    build/bin/kernel.bin \
-    -ex "target remote localhost:${gdb_port}"
\ No newline at end of file
+if [[ -z "${ARCH}" ]]; then
+    echo "error: please specify ARCH="
+    exit 1
+fi
+
+make ARCH="${ARCH}" MODE="${MODE:-debug}" all -j"$(nproc)" || exit 1
+
+launch_script=._launch_debug.sh
+
+cat << EOF > ${launch_script} && chmod +x ${launch_script}
+#!/usr/bin/env sh
+./scripts/qemu.py \\
+    scripts/qemus/qemu_x86_dev.json \\
+    --qemu-dir "${QEMU_DIR}" \\
+    -v QMPORT=${hmp_port} \\
+    -v GDB_PORT=${gdb_port} \\
+    -v ROOTFS=lunaix_rootfs.ext2 \\
+    -v ARCH=${ARCH} \\
+    -v KBIN=build/bin/kernel.bin \\
+    -v "KCMD=${default_cmd} rootfs=/dev/block/sda init=/bin/init" \\
+    -- \\
+    -nographic || exit 1 &
+
+AUTOQEMU_DAEMON=\$!
+echo "autoqemu daemon launched (pid=\$AUTOQEMU_DAEMON)"
+
+gdb-multiarch \\
+    build/bin/kernel.bin \\
+    -ex "target remote localhost:${gdb_port}"
+
+if ps -p \$AUTOQEMU_DAEMON > /dev/null
+then
+   kill -9 \$AUTOQEMU_DAEMON
+fi
+EOF
+
+echo "debugger launch script written to: ${launch_script}"
+
+if [[ -z "${TMUX}" ]]; then
+    echo "for best effect, use tmux"
+    GDB_NOSPLIT=1 "./${launch_script}"
+else
+    tmux new-window -a -n "[lunaix-debug]" -e "QMPORT=${hmp_port}" "./${launch_script}"
+fi
diff --git a/lunaix-os/scripts/qemu.py b/lunaix-os/scripts/qemu.py
index fca6da9..edd5cdc 100755
--- a/lunaix-os/scripts/qemu.py
+++ b/lunaix-os/scripts/qemu.py
@@ -346,13 +346,14 @@ class QEMUExec:
             cmds += dev.get_qemu_opts()
 
         cmds += extras
-        print(" ".join(cmds), "\n")
+        logger.info(" ".join(cmds))
 
         if dryrun:
             logger.info("[DRY RUN] QEMU not invoked")
             return
         
         handle = subprocess.Popen(cmds)
+        logger.info(f"QEMU launched (pid={handle.pid})")
         
         while True:
             ret_code = handle.poll()