4512a9a introduced a new ArgumentList constructor which was handling
some types incorrectly (e.g. implicitly converting floats to
integers). This commit fixes it.
We were assuming the array element size was always the native word
size, which is not correct in general for primitive arrays, and this
led to wasted space at best and memory corruption at worst.
The compiler was failing to freeze the source site containing the
value of the second word in a multi-word move, leading to mis-compiled
code in some cases.
Our Thread.getStackTrace implementation is tricky because it might be
invoked on a thread executing arbitrary native or Java code, and there
are numerous edge cases to consider. Unsurprisingly, there were a few
lingering, non-fatal bugs revealed by Valgrind recently, one involving
the brief interval just before and after returning from invokeNative,
and the other involving an off-by-one error in x86.cpp's nextFrame
implementation. This commit fixes both.
sun.misc.Unsafe now has two native getByte methods: one which takes a
long and another which takes an Object and a long. Thus, we need to
decorate each version with its parameter signature so we don't
accidentally call the wrong one at runtime.
As of the latest code from the jdk7u-dev Mercurial repository,
java.lang.String no longer has offset or length fields. Instead, the
content fits exactly into the backing char array, so offset is
implicitly zero and length is the length of the array. The VM
previously relied on those fields being present, whereas this commit
handles the case where they are not.
In addition, I've made some changes to openjdk-src.mk to ensure that
we can build against both a stock OpenJDK 7 and an IcedTea-patched
version.
If a class references a field or method as static and we find it's
actually non-static -- or vice-versa -- we ought to throw an error
rather than abort.
The usage statement for the bootimage-generator now looks like this:
build/linux-x86_64-bootimage/bootimage-generator \
-cp <classpath> \
-bootimage <bootimage file> \
-codeimage <codeimage file> \
[-entry <class name>[.<method name>[<method spec>]]] \
[-bootimage-symbols <start symbol name>:<end symbol name>] \
[-codeimage-symbols <start symbol name>:<end symbol name>]
