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fix Set[Static]DoubleField regression for 32-bit platforms

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We were truncating 64-bit doubles to 32-bit values with zany results.
This commit is contained in:
Joel Dice 2011-06-20 14:24:11 -06:00
parent 9aae57ee03
commit 6dc9c98604
1 changed files with 10 additions and 8 deletions
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18
src/jnienv.cpp
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@ -1631,7 +1631,7 @@ setDoubleField(Thread* t, uintptr_t* arguments)
{
jobject o = reinterpret_cast<jobject>(arguments[0]);
object field = getField(t, arguments[1]);
jdouble v = bitsToDouble(arguments[2]);
jdouble v; memcpy(&v, arguments + 2, sizeof(jdouble));
PROTECT(t, field);
ACQUIRE_FIELD_FOR_WRITE(t, field);
@ -1644,9 +1644,10 @@ setDoubleField(Thread* t, uintptr_t* arguments)
void JNICALL
SetDoubleField(Thread* t, jobject o, jfieldID field, jdouble v)
{
uintptr_t arguments[] = { reinterpret_cast<uintptr_t>(o),
field,
doubleToBits(v) };
uintptr_t arguments[2 + (sizeof(jdouble) / BytesPerWord)];
arguments[0] = reinterpret_cast<uintptr_t>(o);
arguments[1] = field;
memcpy(arguments + 2, &v, sizeof(jdouble));
run(t, setDoubleField, arguments);
}
@ -2133,7 +2134,7 @@ setStaticDoubleField(Thread* t, uintptr_t* arguments)
initClass(t, jclassVmClass(t, *c));
object field = getStaticField(t, arguments[1]);
jdouble v = bitsToDouble(arguments[2]);
jdouble v; memcpy(&v, arguments + 2, sizeof(jdouble));
PROTECT(t, field);
ACQUIRE_FIELD_FOR_WRITE(t, field);
@ -2147,9 +2148,10 @@ setStaticDoubleField(Thread* t, uintptr_t* arguments)
void JNICALL
SetStaticDoubleField(Thread* t, jobject c, jfieldID field, jdouble v)
{
uintptr_t arguments[] = { reinterpret_cast<uintptr_t>(c),
field,
doubleToBits(v) };
uintptr_t arguments[2 + (sizeof(jdouble) / BytesPerWord)];
arguments[0] = reinterpret_cast<uintptr_t>(c);
arguments[1] = field;
memcpy(arguments + 2, &v, sizeof(jdouble));
run(t, setStaticDoubleField, arguments);
}