3 Commits

Author	SHA1	Message	Date
Albert van der Linde	6f4580264a	prog/alloc: align address allocation for aligned[addr] ... Calls to alloc didn't respect the alignment attribute. Now Type.Alignment() is used to ensure each type is correctly aligned. Existing descriptions with [align[X]] don't have an issue as they align to small blocks and default align is to 64 bytes. This commits adds support for [align[X]] for an X larger than 64.	2020-07-14 12:20:37 +02:00
Dmitry Vyukov	c84501fe70	prog: fix a bunch of bugs in parsing ... Add fuzzer for Deserialize and fix 5 or so bugs it found. Fixes #1086	2019-03-29 08:56:02 +01:00
Dmitry Vyukov	75a7c5e2d1	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.	2018-02-19 21:48:20 +01:00