* Add integer overflow checks in NewCodePage
Fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33457
* TouchSlot should track slots outside of functions
Fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33554.
The OSS-Fuzz inputs led to a crash on a Const64 instruction that
overflows the stack. The overflow was not detected during compilation as
TouchSlot did not track maxStackSlots if o->function is NULL. This
commit changes TouchSlot to track slots outside of functions.
* Fix out-of-bounds write in MarkSlotsAllocatedByType
While pushing the params back onto the stack in CompileBlock,
GetSlotForStackIndex may return c_slotUnused. If that is the case,
passing the slot to MarkSlotsAllocatedByType leads to a crash.
Fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33555
Fix https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36551
* Fix memory leak in CompileElseBlock
In the case of an exception in CompileElseBlock, the original page was not
properly restored and was leaked. This commit moves the release/restore
in the _catch: block which always executes.
* Fix stackIndex underflow in param deallocation
When the stack is polymorphic, the stack should never underflow. This
commits fixes an unreported stack underflow while led to an integer
underflow in stackIndex. Now, if the stack is polymorphic, we only
decrement stackIndex up until blockStackIndex.
* Make simple WASI work in Cygwin.
Issue #329
* Prevent M3_WEAK from taking effect on Cygwin.
Issue #329
* Add CI to ensure that Cygwin doesn’t regress.
Issue #329
This is an addendum to my previous patch as it missed to ensure inclusion of
some header that provides uint*. It worked for me only because of local flags
to add this include
The branch for gcc < 4.8 includes endian.h unconditionally. Unfortunately endian.h is non-standard and is limited to linux according to the docs.
This breaks compilation for OSX PPC
* Make error constants const
Rust bindgen which automatically generates bindings can now identify
this as const static data and produce a signature with the correct
mutability.
* Make error definition const too