diff options
Diffstat (limited to 'malloc/mtrace.awk')
| -rw-r--r-- | malloc/mtrace.awk | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/malloc/mtrace.awk b/malloc/mtrace.awk new file mode 100644 index 0000000..06844d1 --- /dev/null +++ b/malloc/mtrace.awk @@ -0,0 +1,50 @@ +# +# Awk program to analyze mtrace.c output. +# +{ + if ($1 == "@") { + where = " (" $2 ")" + n = 3 + } else { + where = "" + n = 1 + } + if ($n == "+") { + if (allocated[$(n+1)] != "") + print "+", $(n+1), "Alloc", NR, "duplicate:", allocated[$(n+1)], wherewas[$(n+1)], where; + else { + wherewas[$(n+1)] = where; + allocated[$(n+1)] = $(n+2); + } + } else if ($n == "-") { + if (allocated[$(n+1)] != "") { + wherewas[$(n+1)] = ""; + allocated[$(n+1)] = ""; + if (allocated[$(n+1)] != "") + print "DELETE FAILED", $(n+1), allocated[$(n+1)]; + } else + print "-", $(n+1), "Free", NR, "was never alloc'd", where; + } else if ($n == "<") { + if (allocated[$(n+1)] != "") { + wherewas[$(n+1)] = ""; + allocated[$(n+1)] = ""; + } else + print "-", $(n+1), "Realloc", NR, "was never alloc'd", where; + } else if ($n == ">") { + if (allocated[$(n+1)] != "") + print "+", $(n+1), "Realloc", NR, "duplicate:", allocated[$(n+1)], where; + else { + wherewas[$(n+1)] = $(n+2); + allocated[$(n+1)] = $(n+2); + } + } else if ($n == "=") { + # Ignore "= Start" + } else if ($n == "!") { + # Ignore failed realloc attempts for now + } +} +END { + for (x in allocated) + if (allocated[x] != "") + print "+", x, allocated[x], wherewas[x]; +} |