Eliminated per-thread start/stop recording mechanism, which should make DRD a little bit faster. malloc()/free() is now intercepted on all platforms instead of just on i386.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7519 a5019735-40e9-0310-863c-91ae7b9d1cf9
9 files changed