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| author | Sergio Lopez <slp@redhat.com> | 2017-12-04 09:17:14 +0100 |
|---|---|---|
| committer | Sergio Durigan Junior <sergiodj@redhat.com> | 2017-12-04 11:55:15 -0500 |
| commit | cd93789b89f55355d3eeda6c31ed7bd0ed318acd (patch) | |
| tree | 6c8f13835dfef26f714df726ba35beb4908a12f6 | |
| parent | 1e52e8495a074c9d1f7ef17f13b9060b76be6f41 (diff) | |
| download | gdb-cd93789b89f55355d3eeda6c31ed7bd0ed318acd.zip gdb-cd93789b89f55355d3eeda6c31ed7bd0ed318acd.tar.gz gdb-cd93789b89f55355d3eeda6c31ed7bd0ed318acd.tar.bz2 | |
Implement "-a" command line option for gcore
With the new "-a" command line option, the user may request gcore to
actually dump all present memory mappings. The actual effect of this
argument is OS dependent.
On GNU/Linux, it will disable use-coredump-filter and enable
dump-excluded-mappings.
gdb/ChangeLog:
2017-11-29 Sergio Lopez <slp@redhat.com>
* gcore.in: Add "-a" command line option for instructing gdb to
dump all memory mappings (OS dependent).
| -rw-r--r-- | gdb/gcore.in | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/gdb/gcore.in b/gdb/gcore.in index 632f21b..44b2e98 100644 --- a/gdb/gcore.in +++ b/gdb/gcore.in @@ -20,27 +20,39 @@ # It starts up gdb, attaches to the given PID and invokes the gcore command. # -if [ "$#" -eq "0" ] -then - echo "usage: @GCORE_TRANSFORM_NAME@ [-o filename] pid" - exit 2 -fi - # Need to check for -o option, but set default basename to "core". name=core -if [ "$1" = "-o" ] +# When the -a option is present, this may hold additional commands +# to ensure gdb dumps all mappings (OS dependent). +dump_all_cmds=() + +while getopts :ao: opt; do + case $opt in + a) + case $OSTYPE in + linux*) + dump_all_cmds=("-ex" "set use-coredump-filter off") + dump_all_cmds+=("-ex" "set dump-excluded-mappings on") + ;; + esac + ;; + o) + name=$OPTARG + ;; + *) + echo "usage: @GCORE_TRANSFORM_NAME@ [-a] [-o filename] pid" + exit 2 + ;; + esac +done + +shift $((OPTIND-1)) + +if [ "$#" -eq "0" ] then - if [ "$#" -lt "3" ] - then - # Not enough arguments. - echo "usage: @GCORE_TRANSFORM_NAME@ [-o filename] pid" - exit 2 - fi - name=$2 - - # Shift over to start of pid list - shift; shift + echo "usage: @GCORE_TRANSFORM_NAME@ [-a] [-o filename] pid" + exit 2 fi # Attempt to fetch the absolute path to the gcore script that was @@ -87,6 +99,7 @@ do # available but not accessible as GDB would get stopped on SIGTTIN. $binary_path/@GDB_TRANSFORM_NAME@ </dev/null --nx --batch \ -ex "set pagination off" -ex "set height 0" -ex "set width 0" \ + "${dump_all_cmds[@]}" \ -ex "attach $pid" -ex "gcore $name.$pid" -ex detach -ex quit if [ -r $name.$pid ] ; then |