mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
synced 2026-01-23 02:05:57 +01:00
9fd72c786f
Most of it was present inside buildroot/output.* and the rest scattered
on top level.
This came about for the n-th time when we were reviewing QEMU trace file
locations.
On one hand, it would be cool to have per arch traces.
This made buildroot/output.${arch}~/ a natural choice.
But on the other, those traces have nothing to do with Buildroot,
and could potentially interfere with Buildroot build files.
It also feels nicer to have buildroot/ pristine source code only,
and keep all output under a single directory out/
89 lines
1.8 KiB
Bash
Executable File
89 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eu
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. common
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after=''
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arch='x86_64'
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before=''
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gem5=false
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lx_symbols="-ex 'lx-symbols ../kernel_module-1.0/'"
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kgdb=false
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while getopts A:a:b:gkL OPT; do
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case "$OPT" in
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a)
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arch="$OPTARG"
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;;
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A)
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after="$OPTARG"
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;;
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b)
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before="$OPTARG"
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;;
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g)
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gem5=true
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;;
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k)
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kgdb=true
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;;
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L)
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lx_symbols=''
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;;
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esac
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done
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shift "$(($OPTIND - 1))"
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if [ "$#" -gt 0 ]; then
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brk="-ex 'break ${1}'"
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shift
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else
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brk=''
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fi
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if "$gem5"; then
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port=7000
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else
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port=1234
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fi
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set_common_vars "$arch" "$gem5"
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gdb="${host_dir}/usr/bin/${arch}-linux-gdb ${before}"
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cd "${build_dir}/linux-custom/"
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if "$kgdb"; then
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cmd="\
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${gdb} \
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-q \
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-ex 'add-auto-load-safe-path $(pwd)' \
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-ex 'file vmlinux' \
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-ex 'target remote localhost:${port}'
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"
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else
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# ## lx-symbols
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#
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# ### lx-symbols after continue
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#
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# lx symbols must be run after continue.
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#
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# running it immediately after the connect on the bootloader leads to failure,
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# likely because kernel structure on which it depends are not yet available.
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#
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# With this setup, continue runs, and lx-symbols only runs when a break happens,
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# either by hitting the breakpoint, or by entering Ctrl + C.
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#
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# Sure, if the user sets a break on a raw address of the bootloader,
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# problems will still arise, but let's think about that some other time.
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#
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# ### lx-symbols autoload
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#
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# The lx-symbols commands gets loaded through the file vmlinux-gdb.py
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# which gets put on the kernel build root when python debugging scripts are enabled.
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cmd="\
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${gdb} \
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-q \
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-ex 'add-auto-load-safe-path $(pwd)' \
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-ex 'file vmlinux' \
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-ex 'target remote localhost:${port}' \
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${brk} \
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-ex 'continue' \
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${lx_symbols} \
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"
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fi
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cmd="$cmd $after"
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echo "$cmd" | tee "${root_dir}/rungdb.log"
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eval "$cmd"
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