[linux-audio-dev] LADSPA valgrind test wrapper

[Steve Harris]

I hacked up a shell script [attached] to valgrind LADSPA .so files. It
will report leaks, bufferoverruns, reads from unitialised variables and
so on, but it doesn't totally exercise the plugin so it may miss some
things.

Obviously it helps if you rebuild with -g on and it works best with gcc3
(better inline debugging).

You can't just "valgrind applyplugin ..." becuase valgrind doesn't chase the
dlloaded objects and applyplugin is full of memory errors and leaks :)

Usage: ladspa-valgrind <plugin.so>+

I dont recommend running it on my current plugin set ;)

Requires gcc and valgrind 1.0+

- Steve
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#!/bin/sh

TMPDIR="/tmp/lv$$"
VALGRIND=`which valgrind`

mkdir -p "$TMPDIR"

if test -x "$VALGRIND"; then
  echo "using $VALGRIND"
  echo
else
  echo "$0: can't find valgrind binary"
  exit
fi

cat > "$TMPDIR/testhost.c" <<EOB
#include <stdio.h>
#include <ladspa.h>

int main()
{
	const LADSPA_Descriptor *desc;
	LADSPA_Handle *handle;
	unsigned int i, j;
	LADSPA_Data val;

	for (i=0; (desc = ladspa_descriptor(i)); i++) {
		handle = desc->instantiate(desc, 44100);
		if (desc->activate) {
			desc->activate(handle);
		}
		for (j=0; j<desc->PortCount; j++) {
			desc->connect_port(handle, j, &val);
		}
		val = 0.0f;
		desc->run(handle, 1);
		if (desc->deactivate) {
			desc->deactivate(handle);
		}
		desc->cleanup(handle);
	}

	return 0;
}
EOB

for i in $*; do
  gcc -g -o "$TMPDIR/vtest.bin" "$TMPDIR/testhost.c" $i
  $VALGRIND -q --leak-check=yes --show-reachable=yes "$TMPDIR/vtest.bin" 2>&1 | sed 's/^==[0-9]*==//' > "$TMPDIR/test.log"
  if test `cat "$TMPDIR/test.log" | wc -l` -gt 2; then
    echo fail: `basename $i`
    cat "$TMPDIR/test.log"
  else
    echo ok: `basename $i`
  fi
done

rm -f "$TMPDIR/testhost.c" "$TMPDIR/vtest.bin" "$TMPDIR/test.log"
rmdir "$TMPDIR"