add a variant of http://poormansprofile.org/

tools/profile.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Credit: Mark Callaghan, Domas Mituzas
+# http://poormansprofiler.org/
+
+# Modified to connect to remote target
+
+if [[ -z "$GDB" ]]; then
+  export GDB="${CROSS_COMPILE}gdb"
+fi
+
+nsamples=$1
+sleeptime=$2
+file=$3
+
+[[ -z "$nsamples" ]] && nsamples=1
+[[ -z "$sleeptime" ]] && sleeptime=0
+[[ -z "$file" ]] && file=stage1.elf
+
+for x in $(seq 1 $nsamples)
+  do
+    $GDB -ex "file $file" -ex "target remote localhost:1234" -ex "set pagination 0" -ex "thread apply all bt" -batch
+    sleep $sleeptime
+  done | \
+awk '
+  BEGIN { s = ""; } 
+  /^Thread/ { print s; s = ""; } 
+  /^#/ { if (s != "" ) { s = s "," $4} else { s = $4 } } 
+  END { print s }' | \
+sort | uniq -c | sort -r -n -k 1,1