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| 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/size.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/size.go')
| -rw-r--r-- | prog/size.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/prog/size.go b/prog/size.go index 9f2258c82..ab8d97717 100644 --- a/prog/size.go +++ b/prog/size.go @@ -21,7 +21,7 @@ func (target *Target) generateSize(arg Arg, lenType *LenType) uint64 { switch arg.Type().(type) { case *VmaType: a := arg.(*PointerArg) - return a.PagesNum * target.PageSize * 8 / bitSize + return a.VmaSize * 8 / bitSize case *ArrayType: a := arg.(*GroupArg) if lenType.BitSize != 0 { |