1# This AWK script reads the output of testfixture when compiled for memory 2# debugging. It generates SQL commands that can be fed into an sqlite 3# instance to determine what memory is never freed. A typical usage would 4# be as follows: 5# 6# make -f memleak.mk fulltest 2>mem.out 7# awk -f ../sqlite/tool/memleak2.awk mem.out | ./sqlite :memory: 8# 9# The job performed by this script is the same as that done by memleak.awk. 10# The difference is that this script uses much less memory when the size 11# of the mem.out file is huge. 12# 13BEGIN { 14 print "CREATE TABLE mem(loc INTEGER PRIMARY KEY, src);" 15} 16/[0-9]+ malloc / { 17 print "INSERT INTO mem VALUES(" strtonum($6) ",'" $0 "');" 18} 19/[0-9]+ realloc / { 20 print "INSERT INTO mem VALUES(" strtonum($10) \ 21 ",(SELECT src FROM mem WHERE loc=" strtonum($8) "));" 22 print "DELETE FROM mem WHERE loc=" strtonum($8) ";" 23} 24/[0-9]+ free / { 25 print "DELETE FROM mem WHERE loc=" strtonum($6) ";" 26} 27END { 28 print "SELECT src FROM mem;" 29} 30