Removed the 'place-holder' behaviour of VG_(mmap). Previously, VG_(mmap) would
add a segment mapping to the segment skip-list, and then often the caller of
VG_(mmap) would do another one for the same segment, just to change the SF_*
flags. Now VG_(mmap) gets passed the appropriate SF_* flags so it can do it
directly. This results in shorter, simpler code, and less work at runtime.
Also, strengthened checking in VG_(mmap), POST(mmap), POST(mmap2) -- now if the
result is not in the right place, it aborts rather than unmapping and
continuing. This is because if it's not in the right place, something has
gone badly wrong.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2466 a5019735-40e9-0310-863c-91ae7b9d1cf9
6 files changed