[Tizen] QEMU coredump extraction (project-chip#38686)

* QEMU coredump extraction

* Restyled by prettier-markdown

* Fix misspell

* Fix misspell

---------

Co-authored-by: Restyled.io <[email protected]>

Author: XToripuru

integrations/docker/images/base/chip-build/version

@@ -1 +1 @@
-129 : [Telink] Update Docker image (Zephyr update)
+130 : [Tizen] QEMU coredump extraction

integrations/docker/images/stage-3/chip-build-tizen-qemu/Dockerfile

@@ -165,6 +165,10 @@ RUN set -x \
     | guestfish --rw -a $TIZEN_IOT_IMAGE_ROOT -m /dev/sda upload - $SYSTEMD_UNIT_9P_MOUNT : \
     ln-sf $SYSTEMD_UNIT_9P_MOUNT $SYSTEMD_REQUIRES_LOCAL_FS : \
     mkdir /mnt/chip \
+    # Setup crash manager
+    && guestfish --rw -a $TIZEN_IOT_IMAGE_ROOT -m /dev/sda download /etc/crash-manager.conf crash-manager.conf \
+    && sed -i 's|# CrashRootPath=/usr/opt/share/crash/|CrashRootPath=/mnt/chip/|g' crash-manager.conf \
+    && guestfish --rw -a $TIZEN_IOT_IMAGE_ROOT -m /dev/sda upload crash-manager.conf /etc/crash-manager.conf \
     # Setup auto-login for root user
     && SYSTEMD_UNIT_SERIAL_GETTY=$SYSTEMD_SYSTEM/[email protected] \
     && virt-edit $TIZEN_IOT_IMAGE_ROOT -e \

src/test_driver/tizen/README.md

@@ -72,3 +72,26 @@ Then, use the run command and add the `rootshell` keyword to kernel arguments
 passed to QEMU (the string after the `-append` option). This will run QEMU, but
 instead of running the test, it will drop you to the shell. From there, you can
 run the test manually by typing `/mnt/chip/runner.sh`.
+
+## Analyzing core dumps
+
+In order for GDB to work correctly, same sysroot as is present on QEMU must be
+provided.
+
+-   Create sysroot directory
+-   Mount `/opt/tizen-sdk/iot-rootfs.img`
+-   Copy `/usr` from the mounted image to your sysroot directory
+-   Fix potentially broken symlinks in the libraries as needed
+
+Core dumps are generated in the `dump` directory as a zip archive file. After
+extracting it the core dump should be extracted from tar archive file.
+
+Set GDB config
+
+```
+set auto-load safe-path /
+set sysroot /path/to/sysroot/
+```
+
+And then run `gdb-multiarch` specifying `.coredump` file extracted before, your
+GDB config file if present and lastly the executable.

third_party/tizen/tizen_qemu.py

@@ -113,7 +113,7 @@ def whereis(binary_name):
     # Add directory sharing.
     qemu_args += [
         '-virtfs',
-        'local,path=%s,mount_tag=host0,security_model=none' % args.share
+        'local,path=%s,mount_tag=host0,security_model=mapped-xattr' % args.share
     ]
 
 if args.virtio_net: