From bca74f05f331ccb65f6243b39645efc60211a1ca Mon Sep 17 00:00:00 2001
From: Konstantin Aladyshev <aladyshev22@gmail.com>
Date: Sun, 18 Jul 2021 20:26:14 +0300
Subject: Add run_gdb_ovmf.sh script for OVMF debug

Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
---
 scripts/run_gdb_ovmf.sh | 93 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100755 scripts/run_gdb_ovmf.sh

(limited to 'scripts')

diff --git a/scripts/run_gdb_ovmf.sh b/scripts/run_gdb_ovmf.sh
new file mode 100755
index 0000000..fc283d0
--- /dev/null
+++ b/scripts/run_gdb_ovmf.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+
+##### Controllable parameters #####
+QEMU_SHARED_FOLDER=~/UEFI_disk
+###################################
+
+function show_help {
+  echo "Description:"
+  echo "  run_gdb_ovmf.sh is a script that helps to debug OVMF"
+  echo ""
+  echo "Usage: run_gdb_ovmf.sh [-1] [-q <dir>]"
+  echo "  -1            This is a first run of this configuration"
+  echo "                (in this case before main gdb launch there would be another QEMU start that will create 'debug.log' file)"
+  echo "  -q <dir>      QEMU shared directory"
+  echo "                (by default it is equal to QEMU_SHARED_FOLDER variable in the head of the script)"
+  echo ""
+  echo "Examples:"
+  echo " run_gdb_ovmf.sh -1      - create 'debug.log' file with the necessary address information"
+  echo "                           and debug OVMF it with gdb"
+  echo " run_gdb_ovmf.sh         - debug OVMF with gdb ('debug.log' was created in the last run, no need to remake it again)"
+}
+
+
+# A POSIX variable
+OPTIND=1         # Reset in case getopts has been used previously in the shell.
+
+while getopts "h?1q:" opt; do
+  case "$opt" in
+    h|\?)
+      show_help
+      exit 0
+      ;;
+    1)  FIRST_RUN=1
+      ;;
+    q)  QEMU_SHARED_FOLDER=$OPTARG
+      ;;
+  esac
+done
+
+shift $((OPTIND-1))
+
+[ "${1:-}" = "--" ] && shift
+
+
+
+function test_file {
+  FILE_NAME=$1
+  if [[ ! -f ${FILE_NAME} ]]; then
+    echo "Error! There is no file ${FILE_NAME}"
+    exit 1;
+  fi
+}
+
+OVMF="Build/OvmfX64/DEBUG_GCC5/FV/OVMF.fd"
+
+test_file "${OVMF}"
+
+
+if [[ ! -z "${FIRST_RUN}" || ! -f debug.log ]]; then
+  touch debug.log
+  # If it is a first run, we need to create 'debug.log' file for addresses
+  tmux new-session \; \
+   send-keys "tail -f debug.log" Enter \; \
+   split-window -v \; \
+   send-keys "qemu-system-x86_64 \
+             -drive if=pflash,format=raw,readonly,file=${OVMF} \
+             -drive format=raw,file=fat:rw:${QEMU_SHARED_FOLDER} \
+             -net none \
+             -nographic \
+             -global isa-debugcon.iobase=0x402 \
+             -debugcon file:debug.log \
+             -s" C-m Enter \;
+fi
+
+touch debug_temp.log
+tmux new-session \; \
+ send-keys "gdb -ex 'source efi.py' -tui" Enter \; \
+ split-window -h \; \
+ send-keys "tail -f debug_temp.log" Enter \; \
+ split-window -v \; \
+ send-keys "qemu-system-x86_64 \
+            -drive if=pflash,format=raw,readonly,file=${OVMF} \
+            -drive format=raw,file=fat:rw:${QEMU_SHARED_FOLDER} \
+            -net none \
+            -nographic \
+            -global isa-debugcon.iobase=0x402 \
+            -debugcon file:debug_temp.log \
+            -s -S" C-m Enter \; \
+ select-pane -t 0 \; \
+ send-keys "efi -64" Enter \; \
+ send-keys "target remote :1234" Enter \;
+
+ 
-- 
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