diff options
| author | Dmitry Vyukov <dvyukov@google.com> | 2018-02-19 19:35:04 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2018-02-19 21:48:20 +0100 |
| commit | 75a7c5e2d1f09a4a58e7e1f1f4ef0b0f55a33413 (patch) | |
| tree | d44c2457c44b53192005f0b89cd6633a2a2b0ff9 /prog/prio.go | |
| parent | 90fd6503136121e9494761a460898e83bc0b6b3e (diff) | |
prog: rework address allocation
1. mmap all memory always, without explicit mmap calls in the program.
This makes lots of things much easier and removes lots of code.
Makes mmap not a special syscall and allows to fuzz without mmap enabled.
2. Change address assignment algorithm.
Current algorithm allocates unmapped addresses too frequently
and allows collisions between arguments of a single syscall.
The new algorithm analyzes actual allocations in the program
and places new arguments at unused locations.
Diffstat (limited to 'prog/prio.go')
| -rw-r--r-- | prog/prio.go | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/prog/prio.go b/prog/prio.go index 832234dde..35eb6e9d9 100644 --- a/prog/prio.go +++ b/prog/prio.go @@ -140,11 +140,6 @@ func (target *Target) calcDynamicPrio(corpus []*Prog) [][]float32 { for _, c1 := range p.Calls { id0 := c0.Meta.ID id1 := c1.Meta.ID - // There are too many mmap's anyway. - if id0 == id1 || c0.Meta == target.MmapSyscall || - c1.Meta == target.MmapSyscall { - continue - } prios[id0][id1] += 1.0 } } |