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commit 89c63d90daf928e0321ba7349dfe4502d86d93f1 Author: Alexandra Wang <[email protected]> AuthorDate: Wed Apr 26 10:55:34 2023 -0700 Add a gdb script for debugging purposes Add a custom gdb script (src/tools/gdb/.gdbinit) for Greenplum to help debugging. Hopefully in the future, we can add more functions into the gdb script to help the developers debug Greenplum easier. Proposed-by: Ashwin Agrawal <aashwin@vmware> Co-authored-by: Ashwin Agrawal <aashwin@vmware> Co-authored-by: Marbin Tan <[email protected]> Reviewed-by: Ashwin Agrawal <aashwin@vmware> Reviewed-by: Soumyadeep Chakraborty <[email protected]> --- src/tools/gdb/.gdbinit | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/src/tools/gdb/.gdbinit b/src/tools/gdb/.gdbinit new file mode 100644 index 0000000000..6e066e4a3c --- /dev/null +++ b/src/tools/gdb/.gdbinit @@ -0,0 +1,38 @@ +# USAGE: +# 1. Save this script as .gdbinit in your home directory or GPDB project directory. +# 2. Launch GDB with the appropriate binary. +# 3. GDB will automatically load this script during startup. +# 4. Use the custom GDB commands to examine the relevant data structures during debugging. +# +# NOTE: Modify this script according to your specific debugging needs. +# This is just a starting point and can be customized to better suit your workflow. + +define dump_procs + set $i=0 + print procArray->numProcs + while ($i < procArray->numProcs) + set $pgprocno = procArray->pgprocnos[$i] + set $proc = &allProcs[$pgprocno] + set $pgxact = &allPgXact[$pgprocno] + printf "pgprocnos:%d\tprocArray index:%d\t", $pgprocno, $i + printf "pid:%d\tbackendID:%d\tlxid:%d\tdelayChkpt:%d", $proc->pid, $proc->backendId, $proc->lxid, $pgxact->delayChkpt + printf "\n" + set $i = $i + 1 + end +end + +define dump_delayChkpt_procs + set $i=0 + print procArray->numProcs + while ($i < procArray->numProcs) + set $pgprocno = procArray->pgprocnos[$i] + set $proc = &allProcs[$pgprocno] + set $pgxact = &allPgXact[$pgprocno] + if ($pgxact->delayChkpt) + printf "pgprocnos:%d\tprocArray index:%d\t", $pgprocno, $i + printf "pid:%d\tbackendID:%d\tlxid:%d", $proc->pid, $proc->backendId, $proc->lxid + printf "\n" + end + set $i = $i + 1 + end +end --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
