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implement sun.misc.Unsafe methods; set gnu.cpu.endian property

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This commit is contained in:
Joel Dice 2009-08-13 09:05:37 -06:00
parent 9553d56977
commit 99e5e65bd8
1 changed files with 43 additions and 6 deletions
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49
src/gnu.cpp
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@ -183,20 +183,17 @@ Avian_gnu_classpath_VMSystemProperties_preInit
#endif #endif
#ifdef __i386__ #ifdef __i386__
setProperty(t, method, properties, "gnu.cpu.endian", "little");
setProperty(t, method, properties, "os.arch", "x86"); setProperty(t, method, properties, "os.arch", "x86");
#elif defined __x86_64__ #elif defined __x86_64__
setProperty(t, method, properties, "gnu.cpu.endian", "little");
setProperty(t, method, properties, "os.arch", "x86_64"); setProperty(t, method, properties, "os.arch", "x86_64");
#elif defined(__ppc__) || defined(__powerpc__) \ #elif defined(__ppc__) || defined(__powerpc__) \
|| defined(__ppc64__) || defined(__powerpc64__) || defined(__ppc64__) || defined(__powerpc64__)
setProperty(t, method, properties, "gnu.cpu.endian", "big");
setProperty(t, method, properties, "os.arch", "ppc"); setProperty(t, method, properties, "os.arch", "ppc");
#elif defined __ia64__
setProperty(t, method, properties, "os.arch", "ia64");
#elif defined __arm__ #elif defined __arm__
setProperty(t, method, properties, "os.arch", "arm"); setProperty(t, method, properties, "os.arch", "arm");
#elif defined __alpha__
setProperty(t, method, properties, "os.arch", "alpha");
#elif defined __sparc64__
setProperty(t, method, properties, "os.arch", "sparc64");
#else #else
setProperty(t, method, properties, "os.arch", "unknown"); setProperty(t, method, properties, "os.arch", "unknown");
#endif #endif
@ -461,3 +458,43 @@ Avian_java_lang_VMClassLoader_findLoadedClass
return 0; return 0;
} }
} }
extern "C" JNIEXPORT int64_t JNICALL
Avian_sun_misc_Unsafe_compareAndSwapInt
(Thread*, object, uintptr_t* arguments)
{
object target = reinterpret_cast<object>(arguments[1]);
int64_t offset; memcpy(&offset, arguments + 2, 8);
int32_t expect = arguments[4];
int32_t update = arguments[5];
return __sync_bool_compare_and_swap
(&cast<int32_t>(target, offset), expect, update);
}
extern "C" JNIEXPORT int64_t JNICALL
Avian_sun_misc_Unsafe_compareAndSwapLong
(Thread*, object, uintptr_t* arguments)
{
object target = reinterpret_cast<object>(arguments[1]);
int64_t offset; memcpy(&offset, arguments + 2, 8);
int64_t expect; memcpy(&expect, arguments + 4, 8);
int64_t update; memcpy(&update, arguments + 6, 8);
return __sync_bool_compare_and_swap
(&cast<int64_t>(target, offset), expect, update);
}
extern "C" JNIEXPORT int64_t JNICALL
Avian_sun_misc_Unsafe_objectFieldOffset
(Thread* t, object, uintptr_t* arguments)
{
return fieldOffset(t, reinterpret_cast<object>(arguments[1]));
}
extern "C" JNIEXPORT int64_t JNICALL
Avian_java_util_concurrent_atomic_AtomicLong_VMSupportsCS8
(Thread*, object, uintptr_t*)
{
return 0;
}