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linux-kernel-module-cheat/rungdb
Ciro Santilli 5235854384 Create the cli.gitignore mechanism to pass extra default cli options
Document that X11 mouse is not moving.

Convert x='' to x= on all scripts, and also fix case ;; indentations.

Add dummy value to QEMU's -trace enable= to prevent warning.

Expand built-in package choice rationale.
2018-03-30 17:03:17 +01:00

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#!/usr/bin/env bash
set -eu
. common
set -- ${cli_rungdb:-} "$@"
after=
arch='x86_64'
before=
gem5=false
lx_symbols="-ex 'lx-symbols ../kernel_module-1.0/'"
kgdb=false
while getopts A:a:b:gkL OPT; do
case "$OPT" in
A)
after="$OPTARG"
;;
a)
arch="$OPTARG"
;;
b)
before="$OPTARG"
;;
g)
gem5=true
;;
k)
kgdb=true
;;
L)
lx_symbols=
;;
?)
exit 2
;;
esac
done
shift "$(($OPTIND - 1))"
if [ "$#" -gt 0 ]; then
brk="-ex 'break ${1}'"
shift
else
brk=
fi
if "$gem5"; then
port=7000
else
port=1234
fi
set_common_vars "$arch" "$gem5"
gdb="${host_dir}/usr/bin/${arch}-linux-gdb ${before}"
cd "${build_dir}/linux-custom/"
if "$kgdb"; then
cmd="\
${gdb} \
-q \
-ex 'add-auto-load-safe-path $(pwd)' \
-ex 'file vmlinux' \
-ex 'target remote localhost:${port}'
"
else
# ## lx-symbols
#
# ### lx-symbols after continue
#
# lx symbols must be run after continue.
#
# running it immediately after the connect on the bootloader leads to failure,
# likely because kernel structure on which it depends are not yet available.
#
# With this setup, continue runs, and lx-symbols only runs when a break happens,
# either by hitting the breakpoint, or by entering Ctrl + C.
#
# Sure, if the user sets a break on a raw address of the bootloader,
# problems will still arise, but let's think about that some other time.
#
# ### lx-symbols autoload
#
# The lx-symbols commands gets loaded through the file vmlinux-gdb.py
# which gets put on the kernel build root when python debugging scripts are enabled.
cmd="\
${gdb} \
-q \
-ex 'add-auto-load-safe-path $(pwd)' \
-ex 'file vmlinux' \
-ex 'target remote localhost:${port}' \
${brk} \
-ex 'continue' \
${lx_symbols} \
"
fi
cmd="$cmd $after"
echo "$cmd" | tee "${root_dir}/rungdb.log"
eval "$cmd"