66 lines
1.5 KiB
Bash
66 lines
1.5 KiB
Bash
#!/bin/sh
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#
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# Start gdb for kdump crash analysis
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#
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# Usage: gdb-kdump [-v vmlinux] [vmcore [gdb options...]]
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#
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# The script starts gdb using the currently running kernel image
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# and the appopriate crash dump file. If the kernel image is
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# compressed, it's decompressed automatically.
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#
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# When no arugment is given, the latest crash dump file is probed.
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#
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# The script also passes the gdb macros useful for analysis of crash
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# dump.
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. /etc/sysconfig/kdump
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bootdir="/boot"
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if [ "$1" = "-v" ]; then
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vmlinux="$2"
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if [ ! -f "$vmlinux" ]; then
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echo "Cannot find vmlinux file $vmlinux, aborting"
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exit 1
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fi
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shift 2
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else
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vmlinux="$bootdir"/vmlinux-`uname -r`
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if [ ! -f $vmlinux ]; then
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if [ -f "$bootdir/vmlinux" ]; then
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vmlinux="$bootdir/vmlinux"
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elif [ -f $vmlinux.gz ]; then
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if gunzip $vmlinux.gz; then
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echo "Uncompressed $vmlinux.gz"
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else
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echo "Cannot uncompress $vmlinux.gz, aborting"
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exit 1
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fi
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else
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echo "No useful vmlinux is found in $bootdir"
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exit 1
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fi
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fi
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fi
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echo "Using $vmlinux as vmlinux"
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if [ -n "$1" ]; then
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if [ -f "$1" ]; then
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dumpfile="$1"
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shift
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else
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echo "Dumpfile $1 cannot be found"
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exit 1
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fi
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else
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dumpfile=`ls $KDUMP_SAVEDIR/*-*-*-*:*/vmcore 2>/dev/null | sort -r | head -n 1`
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if [ -n "$dumpfile" -a -f "$dumpfile" ]; then
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echo "Using $dumpfile as dumpfile"
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else
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echo "Cannot find the latest dumpfile"
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exit 1
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fi
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fi
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exec /usr/bin/gdb --command=/usr/share/gdbinit.kdump $vmlinux $dumpfile $*
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