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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/minimization_test.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/minimization_test.go')
| -rw-r--r-- | prog/minimization_test.go | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/prog/minimization_test.go b/prog/minimization_test.go index 641b9a9b9..5979ce7a2 100644 --- a/prog/minimization_test.go +++ b/prog/minimization_test.go @@ -99,22 +99,6 @@ func TestMinimize(t *testing.T) { "sched_yield()\n", -1, }, - // Glue several mmaps together. - { - "sched_yield()\n" + - "mmap(&(0x7f0000010000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" + - "mmap(&(0x7f0000011000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n" + - "getpid()\n" + - "mmap(&(0x7f0000015000/0x5000)=nil, 0x2000, 0x3, 0x32, 0xffffffffffffffff, 0x0)\n", - 3, - func(p *Prog, callIndex int) bool { - return p.String() == "mmap-sched_yield-getpid" - }, - "mmap(&(0x7f0000010000/0x7000)=nil, 0x7000, 0x0, 0x0, 0xffffffffffffffff, 0x0)\n" + - "sched_yield()\n" + - "getpid()\n", - 2, - }, } target, _, _ := initTest(t) for ti, test := range tests { |