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* executor: OpenBSD does not allow write and exec mappings by defaultAnton Lindqvist2018-08-311-1/+8
| | | | | | | | | | Since the OpenBSD target does not make use of syz_execute_func yet, just drop PROT_EXEC for now. Supporting write and exec would require one to edit /etc/fstab during installation. Regression introduced in commit a4718693 ("sys/linux: add syz_execute_func").
* sys/linux: add syz_execute_funcDmitry Vyukov2018-08-301-1/+1
| | | | | | The function executes random code. Update #310
* Add mandatory OpenBSD bits (#689)Anton Lindqvist2018-08-281-2/+26
| | | | | | | | | | | | | | | | | | all: add openbsd support squash of the following commits: * openbsd: add mandatory bits * report: add OpenBSD support * executor: skip building kvm on OpenBSD * executor: add OpenBSD support Linking against libutil is necessary due to usage of openpty(3). * executor: fix typo in fail() message * fixup! report: add OpenBSD support * fixup! openbsd: add mandatory bits * fixup! openbsd: add mandatory bits * fixup! openbsd: add mandatory bits * fixup! report: add OpenBSD support * gometalinter: skip sys/openbsd
* executor: remap cover fd's to higher valuesDmitry Vyukov2018-08-081-2/+5
| | | | | | Remap cover fd's to 24x range to prevent interference with fd's used during fuzzing and also to make fd number consistent with/without cover enabled.
* executor: overhaulDmitry Vyukov2018-07-241-0/+104
Make as much code as possible shared between all OSes. In particular main is now common across all OSes. Make more code shared between executor and csource (in particular, loop function and threaded execution logic). Also make loop and threaded logic shared across all OSes. Make more posix/unix code shared across OSes (e.g. signal handling, pthread creation, etc). Plus other changes along similar lines. Also support test OS in executor (based on portable posix) and add 4 arches that cover all execution modes (fork server/no fork server, shmem/no shmem). This change paves way for testing of executor code and allows to preserve consistency across OSes and executor/csource.