We now properly forward the errno value from the child when execvp()
fails, which the parent then uses to for the errno message as well as
including the failed command's name in the message.
In the tails=true build, the calling method cannot always be
determined due to stack frames being optimized away, so we must be
prepared for LogRecord.getSourceMethodName to return null.
We must throw an AbstractMethodError when such a call is executed (not
when the call is compiled), so we compile this case as a call to a
thunk which throws such an error.
Singletons may have embedded object references, and if they are
allocated at fixed memory locations (e.g. if they are larger than
64KB), they must have object masks so the garbage collector knows were
to find said references.
We can't reduce a conditional branch to an unconditional jump unless
both arguments to the comparison are constants *and* those constants
have been resolved. The latter may not be true in the case of a
bootimage build.
We had be using System::Monitor::wait to block threads internally in
the VM as well as to implement Object.wait. However, the interrupted
flag should only be cleared in the latter case, not the former. This
commit adds a new method and changes the semantics of the old one in
order to acheive the desired behavior.
Recent versions of Cygwin's GCC no longer support the -mno-cygwin flag
(compilation works, but linking fails). However, Cygwin now includes
mingw64-i686-gcc, mingw64-x86_64-gcc, and related packages, so we use
those compilers instead. This has the added benefit that we can build
native x86_64 binaries on Cygwin now.
This will break the build for old Cygwin installs, so it will be
necessary to upgrade Cygwin and install the aforementioned packages to
build Avian going forward.
This was causing 8-byte SSE-to-SSE moves involving registers
xmm8-xmm15 to be misencoded on x86_64, leading to incorrect code
generation in methods with lots of local variables of type double.
We were not always placing parameters in the correct stack positions
in the PowerPC implementations of dynamicCall and vmNativeCall. In
particular, the first stack slot used to hold a parameter depends on
the sizes and types of the preceding parameters which are passed in
registers.
